Open loop power control method and device for uplink PUSCH and storage medium

Abstract

The present disclosure relates to an open-loop power control method, device and storage medium for uplink PUSCH. The open-loop power control method for uplink PUSCH is applied to a network device, comprising: in response to sending first indication information and the first indication information not containing an SRI indication domain, configuring and determining the open-loop power control parameters of one or more TRPs used by a terminal when facing multiple TRP cooperation to send PUSCH, wherein the open-loop power control parameters include corresponding open-loop power boosting values; the first indication information is used to indicate the open-loop power boosting values used when multiple TRP cooperation is used to send PUSCH, wherein the open-loop power boosting values used when sending PUSCH correspond to different cooperation TRPs for sending PUSCH. Through the present disclosure, the control of the open-loop power in the PUSCH enhancement based on multiple TRPs is realized.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of communication technology, and particularly relates to an open loop power control method and device for uplink PUSCH and a storage medium. BACKGROUND

[0002] With the development of communication technology, in order to ensure the coverage, it is necessary to use beam-based transmission and reception. When a network device (for example, a base station) has multiple transmission reception points (TRPs), multiple TRPs (Multi-TRP) / panels can be used to provide services for terminals. The application of network device multi-TRP / PANEL is mainly to improve the coverage of the cell edge, provide more balanced service quality in the service area, and cooperatively transmit data between multiple TRPs / PANELs in different ways. From the perspective of network form, network deployment in the manner of a large number of distributed access points plus baseband centralized processing will be more conducive to providing balanced user experience rate, and significantly reducing the time delay and signaling overhead caused by handover. By utilizing the cooperation between multiple TRPs / PANELs, transmission / reception of channels from multiple angles and multiple beams can better overcome various shielding / blocking effects, guarantee the robustness of link connection, and be suitable for ultra-reliable low-latency communication (URLLC) services to improve transmission quality and meet reliability requirements.

[0003] In the R16 research stage, based on the application of multi-point cooperative transmission technology between downlink multi-TRP / PANEL, transmission enhancement is performed on the physical downlink shared channel (PDSCH). Since data transmission includes scheduling feedback of uplink and downlink channels, in the research of URLLC, only enhancing the downlink data channel cannot guarantee the service performance. Therefore, in the R17 research, the downlink control channel (PDCCH) and the uplink control channel (PUCCH) and the uplink shared channel (PUSCH) are further enhanced.

[0004] In a communication system, there are data services with different priorities, delay requirements or reliability requirements, such as URLLC services with very high requirements for delay and reliability, and eMBB services with relatively low requirements for delay and reliability. Generally, URLLC will be scheduled with a shorter transmission time interval, and URLLC services have burstiness and randomness, and present a scattered characteristic in resource distribution, and have a low resource utilization rate. Therefore, multiplexing with eMBB transmission is considered to improve the utilization rate of resources. Unlike downlink transmission, a terminal cannot determine whether the transmission resource of service data is overlapped with the transmission of services with different priorities by other terminals when transmitting uplink data. In order to ensure the reliability of URLLC service transmission, R16 introduces an open-loop power control parameter set indication in the scheduling downlink control information (DCI) to indicate the power boosting indication function for scheduling PUSCH, and introduces a new radio resource control (RRC) parameter: P0-PUSCH-Set, to indicate power control. In the related art, each sounding reference signal (SRS) resource indication (SRI) corresponds to a P0-PUSCH-Set parameter of open-loop power control, and is indicated by the Open-loop power control parameter set indication.

[0005] For R17 PUSCH enhancement based on multi-TRP / PANEL, the transmission scenario of PUSCH will appear multi-TRP based URLLC service, and there will be a conflict situation with eMBB service on different TRPs, that is, the conflict interference situation of network equipment received by two TRPs is different. How to enhance the power boosting mechanism of open-loop power control (OLPC) of multi-TRP is a subject to be studied. SUMMARY

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

[0007] According to a first aspect of embodiments of the present disclosure, a method for open-loop power control of uplink PUSCH is provided, applied to a network device, and the method comprises:

[0008] In response to sending the first indication information and in the absence of an SRI indication field in the first indication information, open-loop power control parameters of one or more TRPs used by the terminal when transmitting PUSCH in a multi-TRP cooperation manner are configured and determined, wherein the open-loop power control parameters include corresponding open-loop power boosting values; and the first indication information is used to indicate the open-loop power boosting values used when transmitting PUSCH in a multi-TRP cooperation manner, wherein the open-loop power boosting values used when transmitting PUSCH correspond to different cooperation TRPs.

[0009] In an implementation manner, the open-loop power control parameters of one or more TRPs used by the terminal when transmitting PUSCH in a multi-TRP cooperation manner are configured and determined, comprising:

[0010] A corresponding power control parameter set is configured for each TRP direction in the multi-cooperation TRP indicated by the first indication information, and each power control parameter set contains open-loop power control parameters in the corresponding TRP direction; and the open-loop power control parameters corresponding to the TRP direction used by the terminal when transmitting PUSCH in a multi-TRP cooperation manner are determined in the power control parameter set corresponding to the TRP direction.

[0011] In an implementation manner, the first indication information is carried in a downlink control information DCI, and the DCI includes an information field; and the information field is used to indicate the open-loop power boosting values of one or more TRPs used by the terminal when transmitting PUSCH in a multi-TRP cooperation manner.

[0012] In an implementation manner, the information field is used to indicate that the one or more TRPs used by the terminal when transmitting PUSCH in a multi-TRP cooperation manner correspond to the same open-loop power control parameters.

[0013] In an implementation manner, the DCI includes a first OLPC power code point associated with a PUSCH power control set corresponding to each TRP; and the OLPC power control parameters of one or more TRPs used by the terminal when transmitting PUSCH in a multi-TRP cooperation manner are determined, comprising: in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point, the open-loop power boosting values used on the corresponding TRP by the terminal when transmitting PUSCH in a multi-TRP cooperation manner are determined.

[0014] In an embodiment, the DCI includes a first OLPC power code point and second indication information, the second indication information being used to indicate whether interference conditions of one or more TRPs used by the terminal when transmitting the PUSCH in a multi-TRP cooperative manner are the same, and / or TRP information of the one or more TRPs that need to be boosted in power when transmitting the PUSCH in a multi-TRP cooperative manner.

[0015] In an embodiment, determining the OLPC power control parameters of the one or more TRPs used by the terminal when transmitting the PUSCH in a multi-TRP cooperative manner includes:

[0016] In response to the second indication information indicating that the interference conditions of the one or more TRPs used by the terminal when transmitting the PUSCH in a multi-TRP cooperative manner are the same, in the PUSCH power set corresponding to each TRP associated with the first OLPC power code point, the same open-loop power control parameters are applied to determine the open-loop power boosting value used by the corresponding TRP when the terminal transmits the PUSCH in a multi-TRP cooperative manner; in response to the second indication information indicating that the interference conditions of the one or more TRPs used by the terminal when transmitting the PUSCH in a multi-TRP cooperative manner are not the same, or indicating that the TRP that needs to be boosted in power is the first cooperative TRP, in the PUSCH power control parameter set associated with the first OLPC power code point, the open-loop power boosting value used by the corresponding first cooperative TRP when the terminal transmits the PUSCH in a multi-TRP cooperative manner is determined, and based on a predefined manner, in the PUSCH power set associated with the first OLPC power code point, the open-loop power boosting value used by the corresponding second cooperative TRP when the terminal transmits the PUSCH in a multi-TRP cooperative manner is determined; the second cooperative TRP is one or more other TRPs different from the first cooperative TRP among the one or more TRPs used by the terminal when transmitting the PUSCH in a multi-TRP cooperative manner.

[0017] In an embodiment, the second indication information includes: the highest extension bit in the information field; or the lowest extension bit value in the information field.

[0018] In an embodiment, the method further includes: determining the cooperative TRP corresponding to the open-loop power boosting value.

[0019] In an embodiment, the cooperative TRP corresponding to the open-loop power boosting value is determined in at least one of the following ways:

[0020] According to the SRS resource set identifier corresponding to the power control parameter set corresponding to the TRP direction, wherein the SRS resource set identifier size has a corresponding relationship with the TRP direction order; and.

[0021] According to a second aspect of the embodiments of the present disclosure, an open-loop power control method for uplink PUSCH is provided, applied to a terminal, and the open-loop power control method comprises the following steps.

[0022] receiving first indication information, wherein no SRI indication field exists in the first indication information, and the first indication information is used to indicate an open-loop power boosting value used when the terminal faces multiple TRPs to cooperatively transmit the PUSCH; and determining the open-loop power boosting value of one or more TRPs used when the terminal faces the multiple TRPs to cooperatively transmit the PUSCH, wherein the open-loop power boosting value used when the terminal transmits the PUSCH corresponds to different cooperative TRPs transmitting the PUSCH.

[0023] In an implementation manner, each TRP direction in the multiple cooperative TRPs indicated by the first indication information is respectively configured with a corresponding power control parameter set, and each power control parameter set comprises an open-loop power control parameter in the corresponding TRP direction;

[0024] The step of determining the open-loop power boosting value of one or more TRPs used when the terminal faces the multiple TRPs to cooperatively transmit the PUSCH comprises the following step: in the power control parameter set corresponding to the TRP direction, determining the open-loop power control parameter corresponding to the TRP direction used when the terminal faces the multiple TRPs to cooperatively transmit the PUSCH.

[0025] In an implementation manner, the first indication information is carried in downlink control information (DCI), and the DCI comprises an information field; and the information field is used to indicate the open-loop power boosting value of one or more TRPs used when the terminal faces the multiple TRPs to cooperatively transmit the PUSCH.

[0026] In an implementation manner, the information field is used to indicate that the one or more TRPs used when the terminal faces the multiple TRPs to cooperatively transmit the PUSCH correspond to the same open-loop power control parameter.

[0027] In an implementation manner, the DCI comprises a first OLPC power code point associated with a PUSCH power control set corresponding to each TRP;

[0028] The step of determining the open-loop power boosting value of one or more TRPs used when the terminal faces the multiple TRPs to cooperatively transmit the PUSCH comprises the following step: in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point, determining the open-loop power boosting value used on the corresponding TRP when the terminal faces the multiple TRPs to cooperatively transmit the PUSCH.

[0029] In an embodiment, the DCI includes a first OLPC power codepoint, and second indication information, the second indication information being used to indicate whether interference conditions of one or more TRPs used by the terminal when transmitting the PUSCH in a multi-TRP cooperation manner are the same, and / or TRP information of the one or more TRPs that need to be boosted in power when the terminal transmits the PUSCH in the multi-TRP cooperation manner.

[0030] In an embodiment, determining the open-loop power boosting value of the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperation manner includes:

[0031] In response to the second indication information indicating that the interference conditions of the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperation manner are the same, the same open-loop power control parameter is applied in the PUSCH power set corresponding to each TRP associated with the first OLPC power codepoint to determine the open-loop power boosting value used by the corresponding TRP when the terminal transmits the PUSCH in the multi-TRP cooperation manner.

[0032] In response to the second indication information indicating that the interference conditions of the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperation manner are not the same, or indicating that the TRP that needs to be boosted in power is the first cooperation TRP, the open-loop power boosting value used by the corresponding first cooperation TRP when the terminal transmits the PUSCH in the multi-TRP cooperation manner is determined in the PUSCH power control parameter set associated with the first OLPC power codepoint, and the open-loop power boosting value used by the corresponding second cooperation TRP when the terminal transmits the PUSCH in the multi-TRP cooperation manner is determined in the PUSCH power set associated with the first OLPC power codepoint based on a predefined manner.

[0033] The second cooperation TRP is one or more other TRPs different from the first cooperation TRP among the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperation manner.

[0034] In an embodiment, the second indication information includes: a highest extension bit in the information field; or a lowest extension bit value in the information field.

[0035] In an embodiment, the method further includes: determining the cooperation TRP corresponding to the open-loop power boosting value.

[0036] In an embodiment, the cooperation TRP corresponding to the open-loop power boosting value is determined in at least one of the following manners:

[0037] According to the SRS resource set identifier corresponding to the power control parameter set corresponding to the TRP direction, and according to the mapping relationship between the SRS resource set indicated in the DCI indication field and the cooperative TRP indicated by the dynamic indication of single TRP and multi-TRP switching, the mapping relationship between the SRS resource set indicated in the DCI indication field and the cooperative TRP is determined, and the order of the cooperative TRP direction is consistent with the mapping relationship between the SRS resource set indicated in the DCI indication field and the cooperative TRP.

[0038] According to a third aspect of the embodiments of the present disclosure, an open loop power control device for uplink PUSCH is provided, and the open loop power control device for uplink PUSCH comprises:

[0039] The sending unit is configured to send first indication information, and the processing unit is configured to, in the case that there is no SRI indication field in the first indication information, configure and determine the open loop power control parameter of one or more TRPs used by the terminal when facing the multi-TRP cooperative transmission of PUSCH, wherein the open loop power control parameter comprises a corresponding open loop power boosting value; the first indication information is used to indicate the open loop power boosting value used when the terminal faces the multi-TRP cooperative transmission of PUSCH, wherein the open loop power boosting value used when the terminal faces the multi-TRP cooperative transmission of PUSCH corresponds to different cooperative TRPs.

[0040] In an embodiment, the processing unit is configured to respectively configure a corresponding power control parameter set for each TRP direction in the multi-cooperative TRP indicated by the first indication information, and each power control parameter set comprises the open loop power control parameter in the corresponding TRP direction; in the power control parameter set corresponding to the TRP direction, the open loop power control parameter corresponding to the TRP direction used by the terminal when facing the multi-TRP cooperative transmission of PUSCH is determined.

[0041] In an embodiment, the first indication information is carried in the downlink control information DCI, and the DCI comprises an information field; the information field is used to indicate the open loop power boosting value of one or more TRPs used by the terminal when facing the multi-TRP cooperative transmission of PUSCH.

[0042] In an embodiment, the information field is used to indicate that the one or more TRPs used by the terminal when facing the multi-TRP cooperative transmission of PUSCH correspond to the same open loop power control parameter.

[0043] In an 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 boosting value used on a corresponding TRP when the terminal transmits the PUSCH in a multi-TRP cooperation manner.

[0044] In an embodiment, the DCI includes a first OLPC power code point, and second indication information, the second indication information being used to indicate whether interference conditions of one or more TRPs used when the terminal transmits the PUSCH in a multi-TRP cooperation manner are the same, and / or TRP information of a TRP requiring power boosting when the terminal transmits the PUSCH in a multi-TRP cooperation manner.

[0045] In an embodiment, in response to the second indication information indicating that the interference conditions of the one or more TRPs used when the terminal transmits the PUSCH in a multi-TRP cooperation manner are the same, the processing unit applies the same open-loop power control parameter in the PUSCH power set corresponding to each TRP associated with the first OLPC power code point to determine the open-loop power boosting value used on the corresponding TRP when the terminal transmits the PUSCH in a multi-TRP cooperation manner.

[0046] In response to the second indication information indicating that the interference conditions of the one or more TRPs used when the terminal transmits the PUSCH in a multi-TRP cooperation manner are not the same, or indicating that the TRP requiring power boosting is a first cooperation TRP, the processing unit determines, in the PUSCH power control parameter set associated with the first OLPC power code point, an open-loop power boosting value used on the corresponding first cooperation TRP when the terminal transmits the PUSCH in a multi-TRP cooperation manner, and based on a predefined manner, determines, in the PUSCH power set associated with the first OLPC power code point, an open-loop power boosting value used on a corresponding second cooperation TRP when the terminal transmits the PUSCH in a multi-TRP cooperation manner; the second cooperation TRP being one or more other TRPs different from the first cooperation TRP among the one or more TRPs used when the terminal transmits the PUSCH in a multi-TRP cooperation manner.

[0047] In an embodiment, the second indication information includes: a highest extension bit in the information field; or a lowest extension bit value in the information field.

[0048] In an embodiment, the processing unit is further configured to determine the cooperation TRP corresponding to the open-loop power boosting value.

[0049] In an implementation, the open-loop power boosting value corresponding to the cooperating TRP is determined in at least one of the following ways:

[0050] According to the SRS resource set identifier corresponding to the power control parameter set corresponding to the TRP direction, wherein the SRS resource set identifier size has a corresponding relationship with the TRP direction order; and

[0051] According to the mapping relationship between the SRS resource set indicated in the DCI indication field and the cooperating TRP, wherein the cooperating TRP direction order is consistent with the mapping relationship between the SRS resource set indicated in the DCI indication field and the cooperating TRP.

[0052] According to the fourth aspect of the present disclosure, an open-loop power control device for uplink PUSCH is provided, which comprises:

[0053] The receiving unit is configured to receive first indication information, wherein the SRI indication field does not exist in the first indication information, and the first indication information is used to indicate the open-loop power boosting value used when the terminal faces the multi-TRP cooperative transmission of PUSCH; and the processing unit is configured to determine the open-loop power boosting value of one or more TRPs used when the terminal faces the multi-TRP cooperative transmission of PUSCH, wherein the open-loop power boosting value used when the terminal faces the multi-TRP cooperative transmission of PUSCH corresponds to different cooperating TRPs for transmitting PUSCH.

[0054] In an implementation, each TRP direction in the multi-cooperating TRP indicated by the first indication information is respectively configured with a corresponding power control parameter set, and each power control parameter set contains the open-loop power control parameter in the corresponding TRP direction. The processing unit is configured to determine the open-loop power boosting value of one or more TRPs used when the terminal faces the multi-TRP cooperative transmission of PUSCH, comprising: in the power control parameter set corresponding to the TRP direction, determining the open-loop power control parameter corresponding to the TRP direction used when the terminal faces the multi-TRP cooperative transmission of PUSCH.

[0055] In an implementation, the first indication information is carried in the downlink control information DCI, and the DCI includes an information field; the information field is used to indicate the open-loop power boosting value of one or more TRPs used when the terminal faces the multi-TRP cooperative transmission of PUSCH.

[0056] In an implementation, the information field is used to indicate that the one or more TRPs used when the terminal faces the multi-TRP cooperative transmission of PUSCH correspond to the same open-loop power control parameter.

[0057] In an embodiment, the DCI includes a first OLPC power code point associated with a PUSCH power control set corresponding to each TRP. The processing unit is configured to determine the open-loop power boosting value used by the terminal for the corresponding TRP when the terminal transmits the PUSCH in a multi-TRP cooperation manner, including: in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point, determining the open-loop power boosting value used by the terminal for the corresponding TRP when the terminal transmits the PUSCH in a multi-TRP cooperation manner.

[0058] In an embodiment, the DCI includes a first OLPC power code point, and second indication information, the second indication information being used to indicate whether the interference conditions of one or more TRPs used by the terminal when the terminal transmits the PUSCH in a multi-TRP cooperation manner are the same, and / or the TRP information of the TRP requiring power boosting when the terminal transmits the PUSCH in a multi-TRP cooperation manner.

[0059] In an embodiment, 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 the PUSCH in a multi-TRP cooperation manner are the same, the processing unit applies the same open-loop power control parameter in the PUSCH power set corresponding to each TRP associated with the first OLPC power code point to determine the open-loop power boosting value used by the terminal for the corresponding TRP when the terminal transmits the PUSCH in a multi-TRP cooperation manner.

[0060] 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 the PUSCH in a multi-TRP cooperation manner are not the same, or indicating that the TRP requiring power boosting is the first cooperation TRP, the processing unit determines the open-loop power boosting value used by the terminal for the corresponding first cooperation TRP when the terminal transmits the PUSCH in a multi-TRP cooperation manner in the PUSCH power control parameter set associated with the first OLPC power code point, and determines the open-loop power boosting value used by the terminal for the corresponding second cooperation TRP when the terminal transmits the PUSCH in a multi-TRP cooperation manner in the PUSCH power set associated with the first OLPC power code point based on a predefined manner.

[0061] The second cooperation TRP is one or more other TRPs different from the first cooperation TRP among the one or more TRPs used by the terminal when the terminal transmits the PUSCH in a multi-TRP cooperation manner.

[0062] In an embodiment, the second indication information includes: the highest extension bit in the information field; or the lowest extension bit value in the information field.

[0063] In an implementation, the processing unit is further configured to determine the cooperating TRP corresponding to the open-loop power boosting value.

[0064] In an implementation, the cooperating TRP corresponding to the open-loop power boosting value is determined in at least one of the following ways:

[0065] determining according to the SRS resource set identifier corresponding to the power control parameter set corresponding to the TRP direction, where the SRS resource set identifier size has a corresponding relationship with the TRP direction order; and determining according to the mapping relationship between the SRS resource set indicated in the DCI indication field of the single-TRP and multi-TRP switching and the cooperating TRP, where the cooperating TRP direction order is consistent with the mapping relationship between the SRS resource set indicated in the DCI indication field and the cooperating TRP.

[0066] According to a fifth aspect of the embodiments of the present disclosure, an open-loop power control device for uplink PUSCH is provided, comprising:

[0067] a processor; and a memory for storing processor-executable instructions;

[0068] The processor is configured to perform the open-loop power control method for uplink PUSCH in the first aspect or any one of the implementation manners of the first aspect.

[0069] According to a sixth aspect of the embodiments of the present disclosure, an open-loop power control device for uplink PUSCH is provided, comprising:

[0070] a processor; and a memory for storing processor-executable instructions;

[0071] The processor is configured to perform the open-loop power control method for uplink PUSCH in the second aspect or any one of the implementation manners of the second aspect.

[0072] According to a seventh aspect of the embodiments of the present disclosure, a storage medium is provided, and the storage medium stores instructions, when the instructions in the storage medium are executed by a processor of a network device, the network device can perform the open-loop power control method for uplink PUSCH in the first aspect or any one of the implementation manners of the first aspect.

[0073] According to an eighth aspect of the embodiments of the present disclosure, a storage medium is provided, and the storage medium stores instructions, when the instructions in the storage medium are executed by a processor of a terminal, the terminal can perform the open-loop power control method for uplink PUSCH in the second aspect or any one of the implementation manners of the second aspect.

[0074] The technical scheme provided by the embodiments of the present disclosure can include the following beneficial effects: the first indication information indicating the open-loop power boosting value used when the PUSCH is sent in a multi-TRP cooperative manner is sent, and in the case that there is no SRI indication field in the first indication information, the open-loop power control parameter of one or more TRPs faced by the terminal when the PUSCH is sent in a multi-TRP cooperative manner is configured and determined. The open-loop power control parameter includes a corresponding open-loop power boosting value, and the open-loop power boosting value used when the PUSCH is sent corresponds to different cooperative TRPs sending the PUSCH, thereby realizing the control of the open-loop power in the multi-TRP-based PUSCH enhancement.

[0075] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not limiting to the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0076] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure.

[0077] Figure 1 is a schematic diagram of a communication system according to an exemplary embodiment.

[0078] Figure 2 is a flowchart of an open-loop power control method for uplink PUSCH according to an exemplary embodiment.

[0079] Figure 3 is a flowchart of an open-loop power control method for uplink PUSCH according to an exemplary embodiment.

[0080] Figure 4 is a flowchart of an open-loop power control method for uplink PUSCH according to an exemplary embodiment.

[0081] Figure 5 is a flowchart of an open-loop power control method for uplink PUSCH according to an exemplary embodiment.

[0082] Figure 6 is a flowchart of an open-loop power control method for uplink PUSCH according to an exemplary embodiment.

[0083] Figure 7 is a block diagram of an open-loop power control device for uplink PUSCH according to an exemplary embodiment.

[0084] Figure 8 is a block diagram of an open-loop power control device for uplink PUSCH according to an exemplary embodiment.

[0085] Figure 9 is a block diagram of an apparatus for open loop power control of uplink PUSCH according to an example embodiment.

[0086] Figure 10 is a block diagram of an apparatus for open loop power control of uplink PUSCH according to an example embodiment. DETAILED DESCRIPTION

[0087] The example embodiments will be described in detail herein with reference to the drawings. The following description is made with reference to the accompanying drawings, in which like reference numerals refer to like elements, and the description which follows is made by way of non-limiting examples with reference to the drawings and is not intended to limit the application to the specific embodiments described in the description.

[0088] The open loop power control method of uplink PUSCH provided by the embodiments of the present disclosure can be applied to Figure 1 the wireless communication system as shown. Referring to Figure 1 , the wireless communication system includes a network device and a terminal. The terminal is connected to the network device through wireless resources and performs data transmission. Among them, the network device and the terminal perform data transmission based on beams. Among them, the network device and the terminal can perform PUSCH uplink transmission enhancement based on Multi-TRP.

[0089] It can be understood that the number of TRPs based on which the network device performs data transmission with the terminal based on Multi-TRP can be one or more. Figure 1 It can be understood that the network device performs data transmission with the terminal 1 and the terminal 2 based on TRP1 and TRP2 in the wireless communication system as shown is only illustrative, and is not limited. It can be understood that more TRPs and terminals are also possible.

[0090] It can be further understood that Figure 1 the wireless communication system as shown is only illustrative. The wireless communication system can also include other network devices, such as core network devices, wireless relay devices, and wireless backhaul devices, etc., which are not shown in Figure 1 . The number of network devices and the number of terminals in the wireless communication system are not limited by the embodiments of the present disclosure.

[0091] It can be further understood that the wireless communication system of the embodiments of the present disclosure is a network that provides wireless communication functions. The wireless communication system can use 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), carrier sense multiple access with collision avoidance (CSMA / CA), and the like. Depending on the capacity, speed, latency, and the like of different networks, the network can be divided into 2G (English: generation) networks, 3G networks, 4G networks, or future evolution networks such as 5G networks. The 5G network can also be referred to as a new radio network (New Radio, NR). For the convenience of description, the wireless communication network in the present disclosure will be referred to as a network.

[0092] Further, the network device involved in the present disclosure can also be referred to as a wireless access network device. The wireless access network device can be a base station, an evolved node B, a home base station, an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP), a transmission and reception point (TRP), and the like. It can also be a gNB in an NR system, or it can also be a component or part of a device that constitutes a base station, and the like. It should be understood that the specific technology and specific device form of the network device in the embodiments of the present disclosure are not limited. In the present disclosure, the network device can provide communication coverage for a specific geographic area, and can communicate with terminals located in the coverage area (cell). In addition, when it is a vehicle-to-everything (V2X) communication system, the network device can also be a vehicle-mounted device.

[0093] Further, the terminal involved in the present disclosure, which can also be referred to as a terminal device, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc., is a device that provides voice and / or data connectivity for a user, for example, the terminal can be a handheld device having wireless connection function, a vehicle-mounted device, etc. At present, some examples of the terminal are: a mobile phone, a customer premise equipment (CPE), a pocket personal computer (PPC), a palm computer, a personal digital assistant (PDA), a notebook computer, a tablet computer, a wearable device, or a vehicle-mounted device, etc. In addition, when it is a vehicle-to-everything (V2X) communication system, the terminal device can also be a vehicle-mounted device. It should be understood that the present embodiments do not limit the specific technology and specific device form of the terminal.

[0094] In the present disclosure, open-loop power control can be performed between the network device and the terminal. R16 introduces an open-loop power control parameter set indication in the scheduling DCI to indicate the power boosting indication function for scheduling PUSCH, and introduces a new RRC parameter P0-PUSCH-Set to indicate power control. Each SRI corresponds to a P0-PUSCH-Set parameter of open-loop power control, and is indicated by an open-loop control parameter indication field.

[0095] Among them, the network device informs the terminal whether there is a power control parameter indication field through high-layer signaling p0-PUSCH-SetList-r16. When there is no configuration of the high-layer parameter p0-PUSCH-SetList-r16, the open-loop power control parameter indication field is 0 bits, that is, the open-loop power control parameter indication field does not exist, and the terminal obtains P0 from P0-PUSCH-AlphaSet according to the original Rel-15 mechanism. When the high-layer parameter p0-PUSCH-SetList-r16 is configured, the open-loop power control parameter indication field can be configured to be 1 bit or 2 bits through high-layer signaling, wherein:

[0096] 1) When there is an SRI indication field in the DCI, the open-loop power control parameter indication field is configured to be 1 bit.

[0097] 2) When SRI indication field is not present in DCI, open loop power control parameter indication field can be configured as 1 bit or 2 bits according to high layer signaling.

[0098] 3) For the scenario that SRI indication field is present in DCI, if open loop power control parameter indication field information is “0”, the mechanism of Rel-15 is still followed to obtain P0 from P0-PUSCH-AlphaSet according to SRI indication. If open loop power control parameter indication field information is “1”, the terminal obtains P0 from P0-PUSCH-Set for power boosting according to SRI indication.

[0099] For the scenario that SRI field is not present in DCI, RAN1#99 meeting passed that the indication field of open loop power control in DCI can be configured as 1 bit or 2 bits, and P0-PUSCH-Set parameter can configure two P0 values at most.

[0100] The scenario to which the open loop power control method of uplink PUSCH in the embodiment of the present disclosure is applied is the scenario of power control parameter adjustment when a terminal occurs service conflict in the communication process. For example, Figure 1 In the scenario, 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 configured with eMBB and URLLC services simultaneously and terminal 2 configured with eMBB service occur conflict, terminal 1 needs three different open loop power levels for power boosting of eMBB and URLLC, which are: 1) baseline P0 for eMBB, obtained from P0-PUSCH-AlphaSet; 2) higher P0 for power boosting of URLLC service without conflict with eMBB; and 3) highest P0 for URLLC PUSCH with conflict with eMBB.

[0101] In order to more clearly describe how the terminal determines P0 according to high layer parameters and DCI indication, refer to Table 1. Table 1 shows how the terminal determines P0 according to high layer parameters and DCI indication.

[0102] Table 1

[0103]

[0104]

[0105] In the related art, data transmission is performed between a network device and a terminal based on a beam. In R17, the network device and the terminal can perform PUSCH uplink transmission enhancement based on Multi-TRP. For the multi-TRP-based PUSCH enhancement scheme, the transmission scenario of the PUSCH also appears the case that URLLC services sent based on multi-TRP conflict with eMBB services at different TRPs. That is, the conflict interference received by the two TRPs of the network device is different, and according to the current adjustment mode, since the scheduling PUSCH that appears conflict corresponds to a power boosting adjustment parameter of one open loop power, and the terminal does not determine which TRP resource appears conflict. Therefore, the open loop power adjustment based on the same power boosting parameter of the open loop power can only be performed in two different TRP transmission directions at the same time, which will cause the terminal to waste valuable transmission power, directly increase the interference to other users, and cause the problem of reducing system performance. Therefore, the power boosting mechanism of OLPC needs to be enhanced.

[0106] How to determine the power boosting control problem of multi-TRP in the case that there is no SRI indication field needs to be further solved in order to optimize the control method of URLLC services considering the same and different cases of different TRP receiving eMBB service interference in the case that there is no SRI indication field.

[0107] The embodiment of the present disclosure provides an open loop power control method for uplink PUSCH. The network device sends indication information for indicating the open loop power boosting value used when the network device cooperatively transmits the PUSCH, for example, DCI for scheduling or activating the open loop power control parameter used when the network device transmits the PUSCH, which is referred to as first indication information. In the case that there is no SRI indication field in the first indication information, the open loop power control parameter of one or more TRPs used when the terminal faces the multi-TRP cooperative transmission of the PUSCH is configured and determined, and the open loop power control parameter includes the corresponding open loop power boosting value. The open loop power boosting value used when the terminal transmits the PUSCH corresponds to different cooperative TRPs for transmitting the PUSCH, which realizes the control of the open loop power in the multi-TRP-based PUSCH enhancement, that is, the enhancement of the OLPC open loop power control.

[0108] Figure 2 A flowchart of an open loop power control method for uplink PUSCH according to an exemplary embodiment is shown. The open loop power control method for uplink PUSCH can be executed alone or in combination with other embodiments of the present disclosure. As shown in Figure 2 The open loop power control method for uplink PUSCH includes the following steps.

[0109] In step S11, the first indication information is sent.

[0110] The first indication information is used to indicate an open-loop power boosting value used when the terminal transmits the PUSCH in the multi-TRP cooperative transmission mode.

[0111] In step S12, in response to the absence of the SRI indication field in the first indication information, the open-loop power control parameters of one or more TRPs used when the terminal transmits the PUSCH in the multi-TRP cooperative transmission mode are configured and determined, and the corresponding open-loop power boosting value is included in the open-loop power control parameters.

[0112] In the embodiments of the present disclosure, the open-loop power control parameters of one or more TRPs used when the terminal transmits the PUSCH in the multi-TRP cooperative transmission mode are configured and determined, so that the power boosting parameters used when the terminal transmits the PUSCH correspond to different cooperative TRPs, thereby enhancing the power boosting parameters of the multi-TRP, expanding and enhancing the use of the open-loop power control parameters of the multi-TRP for power boosting, and achieving the enhancement of the OLPC power boosting mechanism.

[0113] In one implementation manner of the embodiments of the present disclosure, the power control parameter set corresponding to each TRP direction in the multi-cooperative TRP can be configured respectively by enhancing the power control parameter of the OLPC, so that each power control parameter set contains the open-loop power control parameter in the corresponding TRP direction, and the determination of the open-loop power boosting value of one or more TRPs used when the terminal transmits the PUSCH in the multi-TRP cooperative transmission mode is realized.

[0114] Figure 3 A flowchart of an open-loop power control method of an uplink PUSCH according to an example embodiment is shown, which can be executed alone or in combination with other embodiments of the present disclosure. As shown in Figure 3 The open-loop power control method of the uplink PUSCH includes the following steps.

[0115] In step S21, the power control parameter set corresponding to each TRP direction in the multi-cooperative TRP indicated by the first indication information is configured respectively, and each power control parameter set contains the open-loop power control parameter in the corresponding TRP direction.

[0116] In step S22, the open-loop power control parameter corresponding to the TRP direction used when the terminal transmits the PUSCH in the multi-TRP cooperative transmission mode is determined in the power control parameter set corresponding to the TRP direction.

[0117] In another implementation of the embodiments of the present disclosure, the information field indicating the open-loop power boosting value of the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperative manner can be enhanced to determine the open-loop power boosting value of the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperative manner.

[0118] In an implementation, the first indication information is carried in a DCI, and the DCI includes an information field indicating the open-loop power control indication, which is used to indicate the open-loop power boosting value of the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperative manner.

[0119] In the embodiments of the present disclosure, the existing DCI information field indicating the open-loop power control indication can be enhanced, which is used to indicate that the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperative manner correspond to the same open-loop power control parameter. In other words, the same power boosting value is applied to the multiple TRP directions of the cooperative transmission PUSCH.

[0120] In the embodiments of the present disclosure, the existing DCI information field indicating the open-loop power control indication can be configured with OLPC power code points with different bit lengths through high-layer signaling, as shown in Table 1. In the case where there is no SRI indication field in the DCI, 0 bits, or 1 bit, or 2 bits can be configured. For the convenience of description, the OLPC code points configured in the DCI information field indicating the open-loop power control indication in the conventional technology are referred to as first OLPC power code points, that is, the DCI includes the first OLPC power code points associated with the PUSCH power control set corresponding to each TRP.

[0121] When determining the OLPC power control parameter of the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperative manner, the open-loop power boosting value used by the terminal on the corresponding TRP when transmitting the PUSCH in the multi-TRP cooperative manner can be determined in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code points.

[0122] Figure 4 FIG. 1 is a flowchart of an open-loop power control method of an uplink PUSCH according to an example embodiment, which can be executed alone or in combination with other embodiments of the present disclosure. As shown in FIG. 1, the open-loop power control method of the uplink PUSCH includes the following steps. Figure 4

[0123] ​In step S31, a first indication information is sent, the first indication information including a first OLPC power code point associated with a PUSCH power control set corresponding to each TRP.

[0124] In step S32, in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point, a value of open-loop power boosting used on the corresponding TRP when the terminal faces the multi-TRP cooperative transmission of PUSCH is determined.

[0125] Referring to Table 1, when the first OLPC power code point indicated by the information field in the DCI is configured as 1 bit, if the 1 bit indicates “0”, it can be supported to determine the value of open-loop power boosting used on the corresponding TRP when the terminal faces the multi-TRP cooperative transmission of PUSCH in P0-PUSCH-AlphaSet. When the first OLPC power code point indicated by the information field in the DCI is configured as 1 bit, if the 1 bit indicates “1”, it can be supported to determine the value of open-loop power boosting used on the corresponding TRP when the terminal faces the multi-TRP cooperative transmission of PUSCH in P0-PUSCH-Set. That is, when the DCI information field for open-loop power control indication is configured as 1 bit, it can be supported to select the value of open-loop power boosting used on different TRPs in P0-PUSCH-AlphaSet and P0-PUSCH-Set.

[0126] Referring to Table 1, when the first OLPC power code point indicated by the information field in the DCI is configured as 2 bits, if the 2 bits indicate “00”, it can be supported to determine the value of open-loop power boosting used on the corresponding TRP when the terminal faces the multi-TRP cooperative transmission of PUSCH in P0-PUSCH-AlphaSet. When the first OLPC power code point indicated by the information field in the DCI is configured as 2 bits, if the 2 bits indicate “01”, it can be supported to determine the first P0 in P0-PUSCH-Set as the value of open-loop power boosting used on the corresponding TRP when the terminal faces the multi-TRP cooperative transmission of PUSCH. When the first OLPC power code point indicated by the information field in the DCI is configured as 2 bits, if the 2 bits indicate “10”, it can be supported to determine the first P0 in P0-PUSCH-Set as the value of open-loop power boosting used on the corresponding TRP when the terminal faces the multi-TRP cooperative transmission of PUSCH. That is, when the DCI information field for open-loop power control indication is configured as 2 bits, it can be supported to select the configuration in the first P0 in P0-PUSCH-AlphaSet / P0-PUSCH-Set / the second P0 in P0-PUSCH-AlphaSet / P0-PUSCH-Set.

[0127] In the embodiments of the present disclosure, the indication information for indicating whether the interference conditions of the one or more TRPs used by the terminal for the coordinated transmission of the PUSCH are the same can also be added in the DCI. The indication information is referred to as second indication information below.

[0128] If the second indication information indicates that the interference conditions of the one or more TRPs used by the terminal for the coordinated transmission of the PUSCH are the same, the same open-loop power control parameter can be used for the multiple TRPs with the same interference condition. For example, the scheme involved in the above embodiments can be adopted, that is, in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point, the open-loop power boosting value used by the corresponding TRP of the terminal for the coordinated transmission of the PUSCH is determined.

[0129] In the embodiments of the present disclosure, if the second indication information indicates that the interference conditions of the one or more TRPs used by the terminal for the coordinated transmission of the PUSCH are not the same, the TRP information of the TRP that needs to be boosted in power can be further indicated in the second indication information. Of course, the TRP information of the TRP that needs to be boosted in power in the coordinated transmission of the PUSCH by the multiple TRPs can also not be indicated, so that the open-loop power boosting value used by the corresponding TRP of the terminal for the coordinated transmission of the PUSCH is determined in a default manner.

[0130] Based on the above embodiments, the DCI carrying the first indication information includes the first OLPC power code point and the second indication information in the embodiments of the present disclosure. The second indication information is used to indicate whether the interference conditions of the one or more TRPs used by the terminal for the coordinated transmission of the PUSCH are the same, and / or the TRP information of the TRP that needs to be boosted in power in the coordinated transmission of the PUSCH by the multiple TRPs.

[0131] Figure 5 A flowchart of an open-loop power control method of an uplink PUSCH according to an exemplary embodiment is shown. The open-loop power control method of the uplink PUSCH can be executed alone or in combination with other embodiments of the present disclosure. As shown in Figure 5 The open-loop power control method of the uplink PUSCH includes the following steps.

[0132] In step S41, the first indication information is transmitted. The first indication information includes the first OLPC power code point and the second indication information.

[0133] In an implementation, in response to the second indication information indicating that the interference situations of the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperation mode are the same, step S42a is performed.

[0134] In step S42a, in response to the second indication information indicating that the interference situations of the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperation mode are the same, the same open-loop power control parameter is applied in the PUSCH power set corresponding to each TRP associated with the first OLPC power code point to determine the open-loop power boosting value used by the corresponding TRP when the terminal transmits the PUSCH in the multi-TRP cooperation mode.

[0135] In an implementation, in response to the second indication information indicating that the interference situations of the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperation mode are different, step S42b is performed.

[0136] In step S42b, in response to the second indication information indicating that the interference situations of the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperation mode are different, or indicating that the TRP requiring power boosting is the first cooperation TRP, the open-loop power boosting value used by the corresponding first cooperation TRP when the terminal transmits the PUSCH in the multi-TRP cooperation mode is determined in the PUSCH power control parameter set associated with the first OLPC power code point.

[0137] Based on a predefined manner, the open-loop power boosting value used by the corresponding second cooperation TRP when the terminal transmits the PUSCH in the multi-TRP cooperation mode is determined in the PUSCH power set associated with the first OLPC power code point.

[0138] The second cooperation TRP is one or more other TRPs different from the first cooperation TRP in the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperation mode.

[0139] The second indication information related to the above in the embodiments of the present disclosure can be represented by the extended bits after bit extension of the Open-loop power control parameter set indication indication field. For example, in the case where there is no SRI indication field in the DCI, the Open-loop power control parameter set indication indication field can be configured with 0 bits, or 1 bit, or 2 bits. After extending 1 bit of the Open-loop power control parameter set indication indication field, the Open-loop power control parameter set indication indication field configured with 0 bits, or 2 bits, or 3 bits can be obtained. The Open-loop power control parameter set indication indication field configured with 1 bit, or 2 bits, or 3 bits can be used to indicate the OLPC control parameter set associated with the PUSCH power control set corresponding to each TRP, and indicate whether the interference of the one or more TRPs used by the terminal when facing the multi-TRP cooperative transmission of PUSCH is the same, and / or the TRP information that needs to be boosted in the one or more TRPs used by the multi-TRP cooperative transmission of PUSCH.

[0140] In an implementation manner, the second indication information can be the highest extended bit in the Open-loop power control parameter set indication indication field; or can also be the lowest extended bit value in the Open-loop power control parameter set indication indication field.

[0141] In the embodiments of the present disclosure, when the Open-loop power control parameter set indication indication field is configured with 0 bits, the interference information indicating whether the interference between the cooperative TRPs is the same can not be indicated, that is, the second indication information can not be included. In an example, when the Open-loop power control parameter set indication indication field is configured with 0 bits, the P0 in the P0-PUSCH-AlphaSet set of each cooperative TRP can be simultaneously selected for each TRP.

[0142] In the embodiments of the present disclosure, when the Open-loop power control parameter set indication indication field is configured as 2 bits or 3 bits, interference information indicating whether the interference between the cooperative TRPs is the same can be indicated, that is, the second indication information can be included. For example, in the case of extending the highest extension bit, 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 indication field can indicate the PUSCH power control set corresponding to each TRP in the indication manner shown in Table 1.

[0143] In an example, when the Open-loop power control parameter set indication indication field is configured as 2 bits, P0 is selected from P0-PUSCH-AlphaSet and P0-PUSCH-Set, and P0 is used for the TRP (the first cooperative TRP) indicated by the DCI. In addition, P0' is selected for the other cooperative TRP (the second cooperative TRP) in a predefined manner, for example, P0 of P0-PUSCH-Set is applied to TRP1, and P0 of P0-PUSCH-AlphaSet is applied to TRP2.

[0144] In an example, when the Open-loop power control parameter set indication indication field is configured as 3 bits, P0 can be selected from the first P0 value in P0-PUSCH-AlphaSet / P0-PUSCH-Set and the second P0 in P0-PUSCH-AlphaSet / P0-PUSCH-Set when determining the open-loop power of the cooperative TRP, and P0 is used for the TRP (the first cooperative TRP) indicated by the DCI. In addition, P0' is selected for the other cooperative TRP (the second cooperative TRP) in a predefined manner, for example, P0 of P0-PUSCH-Set is applied to TRP1, and P0 of P0-PUSCH-AlphaSet is applied to TRP2.

[0145] It can be understood that the first cooperative TRP involved in the above embodiments of the present disclosure includes one or more TRPs.

[0146] In the embodiments of the present disclosure, after the OLPC power boosting value is determined, the cooperative TRP to which the OLPC power boosting value is applied can be determined.

[0147] Method 1: determining the applicable cooperative TRP of the OLPC power boosting value according to the SRS resource set identifier corresponding to the power control parameter set corresponding to the TRP direction, wherein the SRS resource set identifier size has a corresponding relationship with the TRP direction order. For example, the SRS resource set identifier of a small fixed first TRP. According to the SRS resource set identifier corresponding to the power control parameter set corresponding to the TRP direction, the cooperative TRP to which the OLPC power boosting value is applied is determined

[0148] It can be understood that the cooperative TRP to which the OLPC power boosting value is applied is determined according to the SRS resource set identifier corresponding to the power control parameter set corresponding to the TRP direction, and the DCI indication field for dynamically indicating single TRP and multi-TRP switching is irrelevant.

[0149] Method 2: determining the applicable cooperative TRP of the OLPC power boosting value according to the mapping relationship between the SRS resource set indicated in the DCI indication field for dynamically indicating single TRP and multi-TRP switching and the cooperative TRP.

[0150] For example, the cooperative TRP direction order is consistent with the mapping relationship between the SRS resource set indicated in the DCI indication field and the cooperative TRP.

[0151] Wherein, the DCI indication field for dynamically indicating single TRP and multi-TRP switching can be as shown in Table 2.

[0152] Table 2

[0153]

[0154] Referring to Table 2, the information field defined in DCI 0_1 / 0_2 indicates that PUSCH transmission supports dynamic switching between single TRP and multi-TRP, i.e., indicates whether the current scheduled PUSCH uses single TRP transmission or multi-TRP transmission, and if it is multi-TRP transmission, it also supports TRP flipping function, i.e., supports transmission according to the order of TRP1, TPR2 or TRP2, TRP1.

[0155] In the embodiment of the disclosure, the first cooperative TRP corresponds to the first SRS resource set, and the second cooperative TRP corresponds to the second SRS resource set. Alternatively, the first cooperative TRP corresponds to the second SRS resource set, and the second cooperative TRP corresponds to the first SRS resource set.

[0156] In an example, when the DCI indication field for dynamically indicating single TRP and multi-TRP switching defined by the protocol indicates that the first TRP and the second TRP support flipping, the second TRP can correspond to the first OLPC indication parameter, and the first TRP can correspond to the second OLPC indication parameter.

[0157] In the embodiments of the present disclosure, the first indication information indicating the open-loop power boosting value used when the PUSCH is transmitted in the multi-TRP cooperative transmission is sent, and in the case that the SRI indication field does not exist in the first indication information, the open-loop power control parameter of one or more TRPs used when the terminal faces the multi-TRP cooperative transmission of the PUSCH is configured and determined. The open-loop power control parameter includes the corresponding open-loop power boosting value, and the open-loop power boosting value used when the PUSCH is transmitted corresponds to different cooperative TRPs for transmitting the PUSCH, thereby realizing the control of the open-loop power in the multi-TRP based PUSCH enhancement. For example, the power boosting control of the OLPC of different TRPs is realized by the design enhancement of the multi-TRP based PUSCH through the high-layer signaling and the DCI command, the power control in the conflict of the URLLC service and / or the eMBB service is solved, and the high reliability of the URLLC service is ensured.

[0158] Based on the same concept, the present disclosure also provides an open-loop power control method applied to the uplink PUSCH of a terminal.

[0159] Figure 6 FIG. 1 is a flowchart of an open-loop power control method of an uplink PUSCH according to an example embodiment. The open-loop power control method of the uplink PUSCH can be executed alone or in combination with other embodiments of the present disclosure. As shown in FIG. 1, the open-loop power control method of the uplink PUSCH includes the following steps. Figure 6

[0160] In step S51, the first indication information is received, the SRI indication field does not exist in the first indication information, and the first indication information is used to indicate the open-loop power boosting value used when the PUSCH is transmitted in the multi-TRP cooperative transmission.

[0161] In step S52, the open-loop power boosting value of one or more TRPs used when the terminal faces the multi-TRP cooperative transmission of the PUSCH is determined.

[0162] In the embodiments of the present disclosure, the open-loop power boosting value used when the PUSCH is transmitted corresponds to different cooperative TRPs for transmitting the PUSCH.

[0163] In an implementation, each TRP direction in the multi-cooperative TRP indicated by the first indication information is respectively configured with a corresponding power control parameter set, and each power control parameter set contains the open-loop power control parameter in the corresponding TRP direction. When the terminal determines the open-loop power boosting value of one or more TRPs used when the terminal faces the multi-TRP cooperative transmission of the PUSCH, the terminal can determine the open-loop power control parameter corresponding to the TRP direction used when the terminal faces the multi-TRP cooperative transmission of the PUSCH in the power control parameter set corresponding to the TRP direction. ​

[0164] In an embodiment, the first indication information is carried in a downlink control information (DCI), and the DCI includes an information field; the information field is used to indicate an open-loop power boosting value used by the terminal for the one or more TRPs when the terminal performs the PUSCH transmission in the multi-TRP cooperation manner.

[0165] In an embodiment, the information field is used to indicate that the one or more TRPs correspond to the same open-loop power control parameter when the terminal performs the PUSCH transmission in the multi-TRP cooperation manner.

[0166] In an embodiment, the DCI includes a first open-loop power control (OLPC) power code point associated with a PUSCH power control set corresponding to each TRP. The terminal determines the open-loop power boosting value used by the terminal for the corresponding TRP when the terminal performs the PUSCH transmission in the multi-TRP cooperation manner, in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point.

[0167] In an embodiment, the DCI includes the first OLPC power code point and second indication information, and the second indication information is used to indicate whether the interference conditions of the one or more TRPs used by the terminal when the terminal performs the PUSCH transmission in the multi-TRP cooperation manner are the same, and / or the TRP information of the TRP that needs to perform power boosting among the one or more TRPs used by the terminal when the terminal performs the PUSCH transmission in the multi-TRP cooperation manner.

[0168] In an embodiment, in response to the second indication information indicating that the interference conditions of the one or more TRPs used by the terminal when the terminal performs the PUSCH transmission in the multi-TRP cooperation manner are the same, the terminal applies the same open-loop power control parameter in the PUSCH power set corresponding to each TRP associated with the first OLPC power code point to determine the open-loop power boosting value used by the terminal for the corresponding TRP when the terminal performs the PUSCH transmission in the multi-TRP cooperation manner.

[0169] In another embodiment, in response to the second indication information indicating that the interference conditions of the one or more TRPs used by the terminal when the terminal performs the PUSCH transmission in the multi-TRP cooperation manner are not the same, or indicating that the TRP that needs to perform power boosting is the first cooperation TRP, the open-loop power boosting value used by the terminal for the corresponding first cooperation TRP when the terminal performs the PUSCH transmission in the multi-TRP cooperation manner is determined in the PUSCH power control parameter set associated with the first OLPC power code point. Based on a predefined manner, the open-loop power boosting value used by the terminal for the corresponding second cooperation TRP when the terminal performs the PUSCH transmission in the multi-TRP cooperation manner is determined in the PUSCH power set associated with the first OLPC power code point.

[0170] The second cooperative TRP is one or more other TRPs different from the first cooperative TRP in one or more TRPs used by the terminal to face the multi-TRP cooperative transmission of the PUSCH.

[0171] In an implementation manner, the second indication information can be a highest extension bit in an Open-loop power control parameter set indication indication field; or can also be a lowest extension bit in the Open-loop power control parameter set indication indication field.

[0172] In the embodiments of the present disclosure, after the terminal determines the OLPC power boosting value, the terminal can determine the cooperative TRP to which the OLPC power boosting value is applicable.

[0173] The terminal can determine the cooperative TRP corresponding to the open-loop power boosting value by at least one of the following method 1 and method 2.

[0174] Method 1: determining the cooperative TRP to which the OLPC power boosting value is applicable according to the SRS resource set identifier corresponding to the power control parameter set corresponding to the TRP direction, wherein the SRS resource set identifier has a corresponding relationship with the TRP direction order. For example, a fixed SRS resource set identifier is the first TRP. The SRS resource set identifier is determined according to the power control parameter set corresponding to the TRP direction.

[0175] Method 2: determining the cooperative TRP to which the OLPC power boosting value is applicable according to the mapping relationship between the SRS resource set indicated in the DCI indication field of the dynamic indication single-TRP and multi-TRP switching and the cooperative TRP. The cooperative TRP direction order is consistent with the mapping relationship between the SRS resource set indicated in the DCI indication field and the cooperative TRP.

[0176] In the embodiments of the present disclosure, in the case that the terminal faces the multi-TRP cooperative transmission of the PUSCH, the open-loop power control parameters of the one or more TRPs used can be controlled to realize the power boosting control of the OLPC, solve the power control in the conflict of the URLLC service and / or the eMBB service, and guarantee the high reliability of the URLLC service.

[0177] It can be understood that the open-loop power control method of the uplink PUSCH performed by the terminal in the embodiments of the present disclosure has similarities with the open-loop power control method of the uplink PUSCH performed by the network device, and therefore, for the open-loop power control method of the uplink PUSCH performed by the terminal in the embodiments of the present disclosure, which is not described in detail, the open-loop power control method of the uplink PUSCH performed by the network device in the above embodiments can be referred to.

[0178] It can be further understood that the open-loop power control method of the uplink PUSCH provided by the embodiments of the present disclosure can also be applied to the implementation process of the open-loop power control of the uplink PUSCH realized by the interaction between the terminal and the network device. In the process of the open-loop power control of the uplink PUSCH realized by the interaction between the network device and the terminal, the network device and the terminal respectively have the related functions involved in the above embodiments, and therefore, the details are not described here.

[0179] It should be noted that those skilled in the art can understand that the various embodiments / embodiments described above in the embodiments of the present disclosure can be used in combination with the foregoing embodiments, or can be used independently. Whether it is used alone or in combination with the foregoing embodiments, the implementation principle is similar. In the embodiments of the present disclosure, some embodiments are described as embodiments used together. Of course, those skilled in the art can understand that such example descriptions are not a limitation of the embodiments of the present disclosure.

[0180] Based on the same concept, the embodiments of the present disclosure also provide an open-loop power control device for uplink PUSCH.

[0181] It can be understood that the open-loop power control device for uplink PUSCH provided by the embodiments of the present disclosure comprises a hardware structure and / or a software module for performing each function in order 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 in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of the embodiments of the present disclosure.

[0182] Figure 7 is a block diagram of an open-loop power control device for uplink PUSCH according to an example embodiment. Referring to Figure 7 The open-loop power control device for uplink PUSCH 100 is applied to a network device and comprises a sending unit 101 and a processing unit 102.

[0183] The sending unit 101 is configured to send first indication information.

[0184] The processing unit 102 is configured to, in the case that the SRI indication field is not present in the first indication information, configure and determine the open-loop power control parameter of one or more TRPs used by the terminal when facing the multi-TRP cooperative transmission of PUSCH, wherein the open-loop power control parameter comprises a corresponding open-loop power boosting value. The first indication information is used to indicate the open-loop power boosting value used by the terminal when facing the multi-TRP cooperative transmission of PUSCH, wherein the open-loop power boosting value used by the terminal when facing the multi-TRP cooperative transmission of PUSCH corresponds to different cooperative TRPs transmitting the PUSCH.

[0185] In an implementation form, the processing unit 102 is configured to configure a corresponding power control parameter set for each TRP direction in the multi-cooperative TRP indicated by the first indication information, and each power control parameter set comprises the open-loop power control parameter in the corresponding TRP direction. In the power control parameter set corresponding to the TRP direction, the open-loop power control parameter corresponding to the TRP direction used by the terminal when facing the multi-TRP cooperative transmission of PUSCH is determined.

[0186] In an implementation form, the first indication information is carried in the downlink control information (DCI), and the DCI comprises an information field. The information field is used to indicate the open-loop power boosting value of one or more TRPs used by the terminal when facing the multi-TRP cooperative transmission of PUSCH.

[0187] In an implementation form, the information field is used to indicate that the one or more TRPs used by the terminal when facing the multi-TRP cooperative transmission of PUSCH correspond to the same open-loop power control parameter.

[0188] In an implementation form, the DCI comprises a first OLPC power code point associated with the PUSCH power control set corresponding to each TRP. The processing unit 102 is configured to determine the open-loop power boosting value used by the terminal when facing the multi-TRP cooperative transmission of PUSCH on the corresponding TRP in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point.

[0189] In an implementation form, the DCI comprises the first OLPC power code point and the second indication information. The second indication information is used to indicate whether the interference of one or more TRPs used by the terminal when facing the multi-TRP cooperative transmission of PUSCH is the same, and / or the TRP information of one or more TRPs used by the terminal when facing the multi-TRP cooperative transmission of PUSCH needs to be boosted.

[0190] In an embodiment, in response to the second indication information indicating that the interference situations of the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperation manner are the same, the processing unit 102 applies the same open-loop power control parameter in the PUSCH power set corresponding to each TRP associated with the first OLPC power code point to determine the open-loop power boosting value used by the corresponding TRP when the terminal transmits the PUSCH in the multi-TRP cooperation manner.

[0191] In response to the second indication information indicating that the interference situations of the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperation manner are different, or indicating that the TRP requiring power boosting is the first cooperation TRP, the processing unit 102 determines the open-loop power boosting value used by the corresponding first cooperation TRP when the terminal transmits the PUSCH in the multi-TRP cooperation manner in the PUSCH power control parameter set associated with the first OLPC power code point, and determines the open-loop power boosting value used by the corresponding second cooperation TRP when the terminal transmits the PUSCH in the multi-TRP cooperation manner in the PUSCH power set associated with the first OLPC power code point based on a predefined manner. The second cooperation TRP is one or more other TRPs different from the first cooperation TRP in the one or more TRPs used by the terminal when transmitting the PUSCH in the multi-TRP cooperation manner.

[0192] In an embodiment, the second indication information includes: the highest extension bit in the information field. Or the lowest extension bit value in the information field.

[0193] In an embodiment, the processing unit 102 is further configured to determine the cooperation TRP corresponding to the open-loop power boosting value.

[0194] In an embodiment, determining the cooperation TRP corresponding to the open-loop power boosting value includes at least one of:

[0195] According to the mapping relationship between the SRS resource set corresponding to the power control parameter set corresponding to the TRP direction and the cooperation TRP.

[0196] According to the mapping relationship between the SRS resource set indicated in the DCI indication field indicating single-TRP and multi-TRP switching and the cooperation TRP, it is determined that the cooperation TRP direction order is consistent with the mapping relationship between the SRS resource set indicated in the DCI indication field and the cooperation TRP.

[0197] Figure 8 is a block diagram of an open-loop power control device for uplink PUSCH according to an exemplary embodiment. Referring to Figure 8The open-loop power control device 200 of the uplink PUSCH is applied to a terminal and includes a receiving unit 201 and a processing unit 202.

[0198] The receiving unit 201 is configured to receive first indication information, wherein an SRI indication field is absent in the first indication information and the first indication information is used to indicate an open-loop power boosting value used when the terminal faces multiple TRPs to cooperatively transmit a PUSCH.

[0199] The processing unit 202 is configured to determine an open-loop power boosting value of one or more TRPs used when the terminal faces multiple TRPs to cooperatively transmit a PUSCH, wherein the open-loop power boosting value used when the terminal transmits the PUSCH corresponds to a different cooperative TRP that transmits the PUSCH.

[0200] In an embodiment, each TRP direction in the multiple cooperative TRPs indicated by the first indication information is respectively configured with a corresponding power control parameter set, and each power control parameter set contains an open-loop power control parameter in the corresponding TRP direction. The processing unit 202 is configured to determine the open-loop power boosting value of one or more TRPs used when the terminal faces multiple TRPs to cooperatively transmit a PUSCH, including: in the power control parameter set corresponding to the TRP direction, determining the open-loop power control parameter corresponding to the TRP direction used when the terminal faces multiple TRPs to cooperatively transmit a PUSCH.

[0201] In an embodiment, the first indication information is carried in a downlink control information (DCI), and the DCI includes an information field. The information field is used to indicate the open-loop power boosting value of one or more TRPs used when the terminal faces multiple TRPs to cooperatively transmit a PUSCH.

[0202] In an embodiment, the information field is used to indicate that the one or more TRPs used when the terminal faces multiple TRPs to cooperatively transmit a PUSCH correspond to the same open-loop power control parameter.

[0203] In an 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 the open-loop power boosting value of one or more TRPs used when the terminal faces multiple TRPs to cooperatively transmit a PUSCH, including: in the PUSCH power control set corresponding to each TRP associated with the first OLPC power code point, determining the open-loop power boosting value used on the corresponding TRP when the terminal faces multiple TRPs to cooperatively transmit a PUSCH.

[0204] In an embodiment, the DCI includes a first OLPC power codepoint and a second indication information, the second indication information is used to indicate whether interference conditions of one or more TRPs used by the terminal for transmitting the PUSCH in the multi-TRP cooperation manner are same, and / or TRP information of the one or more TRPs requiring power boosting when the terminal transmits the PUSCH in the multi-TRP cooperation manner.

[0205] In an embodiment, in response to the second indication information indicating that the interference conditions of the one or more TRPs used by the terminal for transmitting the PUSCH in the multi-TRP cooperation manner are same, the processing unit 202 applies same open-loop power control parameters in the PUSCH power set corresponding to each TRP associated with the first OLPC power codepoint to determine the open-loop power boosting value used by the corresponding TRP when the terminal transmits the PUSCH in the multi-TRP cooperation manner.

[0206] In response to the second indication information indicating that the interference conditions of the one or more TRPs used by the terminal for transmitting the PUSCH in the multi-TRP cooperation manner are not same, or indicating that the TRP requiring power boosting is the first cooperation TRP, the processing unit 202 determines the open-loop power boosting value used by the corresponding first cooperation TRP when the terminal transmits the PUSCH in the multi-TRP cooperation manner in the PUSCH power control parameter set associated with the first OLPC power codepoint, and determines the open-loop power boosting value used by the corresponding second cooperation TRP when the terminal transmits the PUSCH in the multi-TRP cooperation manner in the PUSCH power set associated with the first OLPC power codepoint based on a predefined manner.

[0207] The second cooperation TRP is one or more other TRPs different from the first cooperation TRP in the one or more TRPs used by the terminal for transmitting the PUSCH in the multi-TRP cooperation manner.

[0208] In an embodiment, the second indication information includes: a highest extension bit in an information field, or a lowest extension bit value in an information field.

[0209] In an embodiment, the processing unit 202 is further configured to determine the cooperation TRP corresponding to the open-loop power boosting value.

[0210] In an embodiment, determining the cooperation TRP corresponding to the open-loop power boosting value includes at least one of:

[0211] The SRS resource set identifier corresponding to the power control parameter set corresponding to the TRP direction is determined, wherein the SRS resource set identifier size has a corresponding relationship with the TRP direction sequence. The mapping relationship between the SRS resource set indicated in the DCI indication field and the cooperative TRP is determined according to the dynamic indication of single-TRP and multi-TRP switching, wherein the cooperative TRP direction sequence is consistent with the mapping relationship between the SRS resource set indicated in the DCI indication field and the cooperative TRP.

[0212] As to the apparatus in the above-mentioned embodiments, the specific manners in which various modules perform operations have been described in detail in the embodiments of the method, and thus will not be described in detail here.

[0213] Figure 9 is a block diagram of an apparatus for open loop power control of uplink PUSCH according to an exemplary embodiment. For example, apparatus 300 can be a mobile phone, computer, digital broadcast terminal, messaging device, gaming console, tablet device, medical device, fitness device, personal digital assistant, and the like.

[0214] Referring to Figure 9 , apparatus 300 can include one or more of the following components: a processing component 302, a memory 304, a power supply 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.

[0215] The processing component 302 usually controls overall operations of the apparatus 300, such as operations associated with displaying, making phone calls, data communications, camera operations, and recording operations. The processing component 302 can include one or more processors 320 to execute instructions to complete all or part of steps of the above method. Further, the processing component 302 can include one or more modules to facilitate interaction between the processing component 302 and other components. For example, the processing component 302 can include a multimedia module to facilitate the interaction between the multimedia component 308 and the processing component 302.

[0216] The memory 304 is configured to store various types of data to support operations of the apparatus 300. Examples of these data include instructions for any application or method operating on the apparatus 300, contact data, phonebook data, messages, pictures, videos, and the like. The memory 304 can be implemented by any type of volatile or non-volatile storage devices or a combination 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 storage, flash memory, magnetic disk or optical disk.

[0217] Power component 306 provides power to the various components of the device 300. The power component 306 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 300.

[0218] The multimedia component 308 includes a display for the device 300 to provide an output interface between the device 300 and a user. In some embodiments, the display can include a liquid crystal display (LCD) and a touch panel (TP). If the display includes a touch panel, the display can be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors for sensing touch, swiping, and gestures on the touch panel. The touch sensors can not only sense a boundary of a touch or swipe action, but also detect duration and pressure associated with the touch or swipe action. In some embodiments, the multimedia component 308 includes a front camera and / or a rear camera. When the device 300 is in an operation mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have a focal length and optical zoom capability.

[0219] The audio component 310 is configured to output and / or input audio signals. For example, the audio component 310 includes a microphone (MIC) for receiving an external audio signal when the device 300 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 304 or transmitted via the communication component 316. In some embodiments, the audio component 310 also includes a speaker for outputting audio signals.

[0220] The I / O interface 312 provides an interface between the processing component 302 and peripheral interface modules, which can be a keyboard, a click wheel, buttons, and the like. The buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0221] The sensor component 314 includes one or more sensors to provide status assessments for various aspects of the device 300. For example, the sensor component 314 can detect an open / closed status of the device 300, relative positioning of components, such as a display and keypad of the device 300, a change in position of the device 300 or a component of the device 300, presence or absence of user contact with the device 300, orientation or acceleration / deceleration of the device 300, and temperature changes of the device 300. The sensor component 314 can include proximity sensor(s) configured to detect presence of nearby objects without any physical contact. The sensor component 314 can also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 314 can further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0222] The communication component 316 is configured to facilitate wired or wireless communication between the device 300 and another device. 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 can be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra-WideBand (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0223] In an exemplary embodiment, the device 300 can be implemented using 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, or other electronic units to perform the above-described methods.

[0224] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as the memory 304 including instructions, is also provided, which can be executed by the processor 320 of the device 300 to perform the above-described methods. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disc, and an optical data storage device, etc.

[0225] Figure 10 is a block diagram of a device for open loop power control for uplink PUSCH according to an exemplary embodiment. For example, the device 400 can be provided as a network device. Refer to FIG. 4A for the description of the device 400. Figure 10The apparatus 400 also includes a processing component 422 that can be configured to execute program components stored in the memory 432. In this regard, the processing component 422 can be, for example, a single- or multi-core processor, microprocessor, microcomputer, microcontroler, central processing unit (CPU), graphics processing unit (GPU), digital signal processor, application-specific integrated circuit (ASIC), field programmable gate array (FPGA), logic circuit, or the like, or a combination thereof.

[0226] The apparatus 400 can also include a power supply component 426 that can include a rechargeable or non-rechargeable battery, and a power management system that can include a power supply, a power failure detection circuit, a power converter or inverter, a power status circuit, and any associated electrical components for providing and receiving electrical power, as well as a wired or wireless power interface 450 for charging the power supply component 426. TM TM TM TM TM

[0227] In example embodiments, a non-transitory computer readable storage medium comprising instructions that are executable by a processing component 422 of an apparatus 400 to cause the apparatus 400 to perform a method described above is also provided. For example, the non-transitory computer readable storage medium can be a ROM, for example, a DVD-ROM, a CD-ROM, a semiconductor memory, a Blu-ray disc, a hard disk, a floppy disk, or the like.

[0228] It should also be understood that, in this disclosure, "a," "an," "the," "at least one," "one or more," "and / or" and "at least one of, are used to include one or more of something, and that when there are no items listed following these terms, those terms mean that "one," "at least one," "one or more," or "at least one of each of the items.

[0229] It should also be understood that, in this disclosure, "a," "an," "the," "at least one," "one or more," "and / or" and "at least one of, are used to include one or more of something, and that when there are no items listed following these terms, those terms mean that "one," "at least one," "one or more," or "at least one of each of the items.

[0230] ​​​​​It will be further appreciated that embodiments of the present disclosure, although described in certain order of sequences in flowcharts of the drawings, should not be construed to require that the operations be performed in the order or serially, or that all operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing can be advantageous.

[0231] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the concepts disclosed herein. It is intended that the present disclosure cover any and all variations of the present disclosure including combinations of features falling within the general scope of the disclosure. The specification and examples given are intended as illustrative only and not in a limiting sense. The true scope and spirit of the present disclosure should be indicated by the following claims.

[0232] It is to be understood that the present disclosure is not limited to the precise details of design and construction described herein and illustrated in the accompanying drawings. Various modifications and changes can be made thereunto without departing from the scope of the present disclosure. The scope of the present disclosure is limited only by the claims appended hereto.

Claims

1. An open-loop power control method for uplink PUSCH, characterized in that, Applied to network devices, the method includes: Send a first indication message, which is used to indicate the open-loop power boost value used when multiple TRPs cooperate to send PUSCH, wherein the open-loop power boost value used when sending PUSCH corresponds to the different cooperative TRPs sending PUSCH. In response to the absence of an SRI indication field in the first indication information, a corresponding set of power control parameters is configured for each TRP direction in the multi-cooperative TRP indicated by the first indication information. Each set of power control parameters contains open-loop power control parameters for the corresponding TRP direction. The first indication information is carried in downlink control information (DCI), which includes an information field. The information field is used to indicate the open-loop power boost value of one or more TRPs used by the terminal when sending PUSCH in cooperation with multiple TRPs. The DCI includes a first OLPC power code point associated with the PUSCH power control set corresponding to each TRP. When the first OLPC power code point indicated by the information field is configured as 1 bit, if the 1 bit indicates 0, then in P0-PUSCH-AlphaSet, the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation is determined; if the 1 bit indicates 1, then in P0-PUSCH-Set, the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation is determined. or, When the first OLPC power code point indicated by the information field is configured as 2 bits, if the 2 bits indicate 00, then in P0-PUSCH-AlphaSet, the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation is determined; if the 2 bits indicate 01, then the first P0 in P0-PUSCH-Set is determined to be the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation.

2. The open-loop power control method for uplink PUSCH according to claim 1, characterized in that, The information field is used to indicate that when the terminal sends PUSCH to multiple TRPs in cooperation, one or more TRPs have the same open-loop power control parameters.

3. The open-loop power control method for uplink PUSCH according to claim 1, characterized in that, The DCI includes a first OLPC power code point and second indication information. The second indication information is used to indicate whether the interference conditions of one or more TRPs used by the terminal when transmitting PUSCH in cooperation with multiple TRPs are the same, and / or the TRP information of one or more TRPs used when transmitting PUSCH in cooperation with multiple TRPs that need to be power-boosted.

4. The open-loop power control method for the uplink PUSCH according to claim 3, characterized in that, Determine the OLPC power control parameters of one or more TRPs used by the terminal when sending PUSCH in a multi-TRP cooperative manner, including: In response to the second indication information indicating that the interference of one or more TRPs used by the terminal to send PUSCH to multiple TRPs in cooperation is the same, the same open-loop power control parameters are applied to determine the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation in the PUSCH power set associated with the first OLPC power code point. In response to the second indication information indicating that the interference conditions of one or more TRPs used by the terminal to send PUSCH in cooperation with multiple TRPs are different, or indicating that the TRP that needs power boosting is the first cooperating TRP, the open-loop power boosting value used on the first cooperating TRP when the terminal sends PUSCH in cooperation with multiple TRPs is determined from the PUSCH power control parameter set associated with the first OLPC power code point, and based on a predefined method, the open-loop power boosting value used on the second cooperating TRP when the terminal sends PUSCH in cooperation with multiple TRPs is determined from the PUSCH power set associated with the first OLPC power code point. The second cooperating TRP is one or more other TRPs that are different from the first cooperating TRP when the terminal sends PUSCH to multiple TRPs in cooperation.

5. The open-loop power control method for uplink PUSCH according to claim 3, characterized in that, The second indication information includes: The highest extended bit in the information field; or The lowest extended bit value in the information field.

6. The open-loop power control method for uplink PUSCH according to claim 1, characterized in that, The method further includes: Determine the cooperative TRP corresponding to the open-loop power boost value.

7. The open-loop power control method for uplink PUSCH according to claim 6, characterized in that, The determination of the cooperative TRP corresponding to the open-loop power boost value includes at least one of the following: The SRS resource set identifier is determined based on the power control parameter set corresponding to the TRP direction, wherein the size of the SRS resource set identifier corresponds to the order of the TRP direction; The mapping relationship between the SRS resource set and the cooperating TRP is determined based on the DCI indication field indicating the switching between single TRP and multiple TRP, wherein the direction order of the cooperating TRP is consistent with the mapping relationship between the SRS resource set and the cooperating TRP indicated in the DCI indication field.

8. An open-loop power control method for uplink PUSCH, characterized in that, Applied to a terminal, the method includes: Receive first indication information, the first indication information is used to indicate the open-loop power boost value used when multiple TRPs cooperate to send PUSCH, wherein the open-loop power boost value used when sending PUSCH corresponds to the different cooperative TRPs sending PUSCH; In response to the absence of an SRI indication field in the first indication information, a corresponding set of power control parameters is determined for each TRP direction in the multi-cooperative TRP indicated by the first indication information, and each set of power control parameters contains open-loop power control parameters for the corresponding TRP direction. The first indication information is carried in downlink control information (DCI), which includes an information field. The information field is used to indicate the open-loop power boost value of one or more TRPs used by the terminal when sending PUSCH in cooperation with multiple TRPs. The DCI includes a first OLPC power code point associated with the PUSCH power control set corresponding to each TRP. When the first OLPC power code point indicated by the information field is configured as 1 bit, if the 1 bit indicates 0, then in P0-PUSCH-AlphaSet, the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation is determined; if the 1 bit indicates 1, then in P0-PUSCH-Set, the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation is determined. or, When the first OLPC power code point indicated by the information field is configured as 2 bits, if the 2 bits indicate 00, then in P0-PUSCH-AlphaSet, the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation is determined; if the 2 bits indicate 01, then in the first P0 in P0-PUSCH-Set, the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation is determined.

9. The open-loop power control method for uplink PUSCH according to claim 8, characterized in that, The information field is used to indicate that when the terminal sends PUSCH to multiple TRPs in cooperation, one or more TRPs have the same open-loop power control parameters.

10. The open-loop power control method for uplink PUSCH according to claim 8, characterized in that, The DCI includes a first OLPC power code point and second indication information. The second indication information is used to indicate whether the interference conditions of one or more TRPs used by the terminal when transmitting PUSCH in cooperation with multiple TRPs are the same, and / or the TRP information of one or more TRPs used when transmitting PUSCH in cooperation with multiple TRPs that need to be power-boosted.

11. The open-loop power control method for uplink PUSCH according to claim 10, characterized in that, Determine the open-loop power boost values ​​of one or more TRPs used by the terminal when sending PUSCH in a multi-TRP cooperative manner, including: In response to the second indication information indicating that the interference of one or more TRPs used by the terminal to send PUSCH to multiple TRPs in cooperation is the same, the same open-loop power control parameters are applied to determine the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation in the PUSCH power set associated with the first OLPC power code point. In response to the second indication information indicating that the interference conditions of one or more TRPs used by the terminal to send PUSCH in cooperation with multiple TRPs are different, or indicating that the TRP that needs power boosting is the first cooperating TRP, the open-loop power boosting value used on the first cooperating TRP when the terminal sends PUSCH in cooperation with multiple TRPs is determined from the PUSCH power control parameter set associated with the first OLPC power code point, and based on a predefined method, the open-loop power boosting value used on the second cooperating TRP when the terminal sends PUSCH in cooperation with multiple TRPs is determined from the PUSCH power set associated with the first OLPC power code point. The second cooperating TRP is one or more other TRPs that are different from the first cooperating TRP when the terminal sends PUSCH to multiple TRPs in cooperation.

12. The open-loop power control method for uplink PUSCH according to claim 10, characterized in that, The second indication information includes: The highest extended bit in the information field; or The lowest extended bit value in the information field.

13. The open-loop power control method for uplink PUSCH according to claim 8, characterized in that, The method further includes: Determine the cooperative TRP corresponding to the open-loop power boost value.

14. The open-loop power control method for uplink PUSCH according to claim 13, characterized in that, The cooperative TRP corresponding to the open-loop power boost value is determined using at least one of the following methods: The SRS resource set identifier is determined based on the power control parameter set corresponding to the TRP direction, where the size of the SRS resource set identifier corresponds to the order of the TRP directions; and The mapping relationship between the SRS resource set and the cooperating TRP is determined based on the DCI indication field indicating the switching between single TRP and multiple TRP, wherein the direction order of the cooperating TRP is consistent with the mapping relationship between the SRS resource set and the cooperating TRP indicated in the DCI indication field.

15. An open-loop power control device for an uplink PUSCH, characterized in that, The open-loop power control device for the uplink PUSCH includes: The transmitting unit is configured to transmit first indication information, which indicates the open-loop power boost value used when transmitting PUSCH in multi-TRP cooperative transmission, wherein the open-loop power boost value used when transmitting PUSCH corresponds to the different cooperative TRPs transmitting PUSCH; and The processing unit is configured to, in response to the absence of an SRI indication field in the first indication information, configure a corresponding power control parameter set for each TRP direction in the multi-cooperative TRP indicated by the first indication information, wherein each power control parameter set contains open-loop power control parameters for the corresponding TRP direction. The first indication information is carried in downlink control information (DCI), which includes an information field. The information field is used to indicate the open-loop power boost value of one or more TRPs used by the terminal when sending PUSCH in cooperation with multiple TRPs. The DCI includes a first OLPC power code point associated with the PUSCH power control set corresponding to each TRP. When the first OLPC power code point indicated by the information field is configured as 1 bit, if the 1 bit indicates 0, then in P0-PUSCH-AlphaSet, the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation is determined; if the 1 bit indicates 1, then in P0-PUSCH-Set, the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation is determined. or, When the first OLPC power code point indicated by the information field is configured as 2 bits, if the 2 bits indicate 00, then in P0-PUSCH-AlphaSet, the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation is determined; if the 2 bits indicate 01, then the first P0 in P0-PUSCH-Set is determined to be the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation.

16. An open-loop power control device for an uplink PUSCH, characterized in that, The open-loop power control device for the uplink PUSCH includes: The receiving unit is configured to receive first indication information, which indicates the open-loop power boost value used when multiple TRPs cooperate to transmit PUSCH, wherein the open-loop power boost value used when transmitting PUSCH corresponds to the different cooperating TRPs transmitting PUSCH; and The processing unit is configured to, in response to the absence of an SRI indication field in the first indication information, determine a corresponding set of power control parameters for each TRP direction in the multi-cooperative TRP indicated by the first indication information, wherein each set of power control parameters contains open-loop power control parameters for the corresponding TRP direction. The first indication information is carried in downlink control information (DCI), which includes an information field. The information field is used to indicate the open-loop power boost value of one or more TRPs used by the terminal when sending PUSCH in cooperation with multiple TRPs. The DCI includes a first OLPC power code point associated with the PUSCH power control set corresponding to each TRP. When the first OLPC power code point indicated by the information field is configured as 1 bit, if the 1 bit indicates 0, then in P0-PUSCH-AlphaSet, the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation is determined; if the 1 bit indicates 1, then in P0-PUSCH-Set, the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation is determined. or, When the first OLPC power code point indicated by the information field is configured as 2 bits, if the 2 bits indicate 00, then in P0-PUSCH-AlphaSet, the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation is determined; if the 2 bits indicate 01, then in the first P0 in P0-PUSCH-Set, the open-loop power boost value used on the TRP corresponding to the terminal when sending PUSCH to multiple TRPs in cooperation is determined.

17. An open-loop power control device for an uplink PUSCH, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to: execute the open-loop power control method for the uplink PUSCH as described in any one of claims 1 to 7, or be configured to execute the open-loop power control method for the uplink PUSCH as described in any one of claims 8 to 14.

18. A storage medium, characterized in that, The storage medium stores instructions that, when executed by the processor of the network device, enable the network device to perform the open-loop power control method for the uplink PUSCH as described in any one of claims 1 to 7, or, when executed by the processor of the terminal, enable the terminal to perform the open-loop power control method for the uplink PUSCH as described in any one of claims 8 to 14.

Images