Uplink Phase Tracking Reference Signal (PT-RS) Enhancement Method, Apparatus, and Communication Device

Abstract

The present disclosure relates to the field of wireless communication technology and provides a method, apparatus, and communication device for enhancing an uplink phase tracking reference signal (PT-RS). The method comprises the step of a network-side device transmitting a guidance message to a UE. The guidance message includes a plurality of PT-RS guidance information for instructing each of a plurality of transmit / receive points (TRPs), wherein the PT-RS guidance information indicates that it is transmitted toward a corresponding TRP and also indicates a demodulation reference signal (DMRS) port associated with a corresponding PT-RS port. In a possible embodiment of the present disclosure, the guidance message transmitted to the UE includes a plurality of PT-RS guidance information transmitted toward a corresponding TRP, and since each PT-RS guidance information indicates a DMRS port associated with a corresponding PT-RS port, the problem of not being able to associate DMRS ports with different CPE noise sources when PT-RS is transmitted based on multiple TRPs is resolved, which is advantageous for improving system performance.

Description

Technology Field

[0001] The present disclosure relates to the field of wireless communication technology, and in particular to a method, apparatus, and communication apparatus for enhancing an uplink phase tracking reference signal (PT-RS). Background Technology

[0002] The application of multiple TRPs (Transmission Reception Points) and PANELs in base stations is primarily intended to improve cell edge coverage, provide more balanced service quality within the service area, and transmit data by cooperating among multiple TRPs and PANELs in different ways. From the perspective of network configuration, network deployment using a large number of distributed access points and baseband aggregation is more advantageous for providing balanced user experience speeds and significantly reduces delays caused by handovers and signaling overhead. By using cooperation among multiple TRPs and PANELs to perform channel transmission and reception from multiple beams at multiple angles, various shielding and blocking effects can be better overcome, link connection robustness can be ensured, and it is suitable for URLLC (Ultra Reliable and Low Latency Communication) services, improving transmission quality and satisfying reliability requirements.

[0003] In the R16 research phase, transmission enhancement is performed on the Physical Downlink Shared Channel (PDSCH) based on the application of multi-point cooperative linkage transmission technology between downlink multi-TRPs / PANELs. Since data transmission involves scheduling feedback from the uplink and downlink channels, enhancing only the downlink data channel in the URLLC research is insufficient to ensure overall service performance. Therefore, in the R17 research, the Physical Downlink Control Channel (PDCCH), Physical Uplink Control Channel (PUCCH), and Physical Uplink Shared Channel (PUSCH) are continuously enhanced.

[0004] Based on multi-TRP PUSCH enhancement, the main method of controlled PUSCH transmission based on a single DCI (Downlink Control Information) currently uses two independent SRI (Scheduling Request Indication) domains in DCI 0_1 / 0_2 to control PUSCH transmission to different TRPs in response to SRI instructions for different TRPs.

[0005] In PUSCH transmission to different TRPs, different Common Phase Error (CPE) noise sources present at the terminal in Frequency Range 2 (FR2) are not the same during transmission to different TRPs. The strongest Demodulation Reference Signal (DMRS) port associated with one of the TRPs in the Phase Tracking Reference Signal (PT-RS) is not necessarily the same as the strongest DMRS port transmitted to another TRP. Therefore, a redefinition of the relationship between the PT-RS and other DMRS ports in user uplink scheduling—that is, correlation enhancement—must be considered. Otherwise, the estimation accuracy of the PT-RS cannot be secured, which reduces the compensation effect for CPE and affects system performance.

[0006] An embodiment of the first aspect of the present disclosure provides a method for enhancing an uplink phase tracking reference signal (PT-RS) and is applied to a network-side device, wherein the method comprises the step of transmitting a command message to a user device (UE), wherein the command message comprises a plurality of PT-RS command information for instructing each of a plurality of transmit / receive points (TRPs), wherein the PT-RS command information indicates that it is transmitted toward a corresponding TRP and also indicates a demodulation reference signal (DMRS) port associated with a corresponding PT-RS port.

[0007] Optionally, the step of transmitting an instruction message to the user device (UE) includes the step of transmitting the instruction message to the UE via downlink control information (DCI).

[0008] Optionally, the instruction message is determined based on the maximum number of uplink transport layers supported by the UE currently configured in the network in the partial bandwidth (BWP) and the number of PT-RS ports corresponding to the uplink transport of the UE configured in the network.

[0009] Optionally, in response to the maximum number of uplink transport layers set in the network being greater than two layers, the DCI includes two corresponding independent PT-RS indication fields, and

[0010] In response to the fact that the maximum number of uplink transport layers configured in the above network is 2 layers and the number of uplink PT-RS ports is 1, the DCI includes a corresponding PT-RS indication field, and

[0011] In response to the fact that the maximum number of uplink transport layers configured in the above network is 2 and the number of uplink PT-RS ports is 2, without adding the instruction message to the DCI,

[0012] In response to the maximum number of uplink transport layers set in the above network being 1 layer, the above instruction message is not added to the above DCI.

[0013] Optionally, the method further comprises the step of transmitting a PUSCH toward a plurality of TRPs and transmitting a corresponding independent PT-RS reference signal toward the PUSCH of each of the plurality of TRPs, wherein each port of the PT-RS is associated with a modulation reference signal (DMRS) port in the same TRP transmission direction.

[0014] Optionally, in response to the maximum number of uplink transport layers set in the network being two layers and the number of uplink PT-RS ports being one, the instruction message includes a first PT-RS instruction field, and the first PT-RS instruction field includes PT-RS instruction information corresponding to each of the PT-RS transmitted in the direction of a plurality of TRP transmissions.

[0015] Optionally, the method further comprises the step of, at every transmission timing (TO) transmitted toward a plurality of TRPs, mapping the PT-RS port to the PT-RS instruction information and transmitting the PT-RS using the DMRS port indicated by the PT-RS instruction information, wherein a set of DMRS ports associated with each PT-RS port in the transmission direction of the plurality of TRPs is pre-set, and the set of DMRS ports includes DMRS ports for transmitting the PT-RS.

[0016] Optionally, if the UE reports that it supports a PT-RS replacement mapping scheme and the UE is configured to map according to the replacement mapping scheme, then on all ports configured with a set of DMRS ports associated with each PT-RS port configured in the network, each PT-RS port is replaced and mapped to another DMRS port associated with said PT-RS port to transmit PT-RS, and at different transmission timings (TO) in the corresponding TRP transmission direction, transmission is performed using the DMRS port associated with said PT-RS port, and the DMRS port indicated by said PT-RS instruction information is mapped to the first start transmission timing (TO) in the corresponding TRP transmission direction.

[0017] Optionally, in response to the maximum number of uplink transport layers set in the network being greater than two layers and the number of uplink PT-RS ports being one, the instruction message includes a plurality of second PT-RS instruction fields, each second PT-RS instruction field corresponding to one of the TRPs, and the second PT-RS instruction field is used to indicate that it is transmitted toward the corresponding TRP and also to indicate a DMRS port associated with the corresponding PT-RS port.

[0018] Optionally, the method comprises the step of transmitting the PT-RS by mapping the PT-RS port to a DMRS port indicated by the second PT-RS indicator field at every transmission timing (TO) transmitted toward a plurality of TRPs, and pre-setting a set of DMRS ports associated with the PT-RS port in the transmission direction of the plurality of TRPs, wherein the set of DMRS ports includes DMRS ports for transmitting the PT-RS.

[0019] Optionally, the method further comprises the step of reporting that the UE supports a PT-RS replacement mapping scheme, and when the UE is configured to map according to the replacement mapping scheme, at all ports corresponding to one set of related DMRS ports configured in the network, the PT-RS port is sequentially replaced from another DMRS port to transmit the PT-RS and mapped to another TO that transmits toward the corresponding TRP, and the DMRS port indicated by the second PT-RS indication field is mapped to the first starting TO in the direction of transmission toward the corresponding TRP.

[0020] Optionally, in response to the maximum number of uplink transport layers set in the network being greater than 2 layers and the number of uplink PT-RS ports being 2, the instruction message includes a plurality of third PT-RS instruction fields, each of which corresponds to one of the TRPs and indicates that the third PT-RS instruction field is transmitted toward the corresponding TRP, and is also used to indicate two DMRS ports associated with the two PT-RS ports.

[0021] Optionally, the method further comprises the step of transmitting the PT-RS by mapping the PT-RS port to two DMRS ports indicated by the third PT-RS indicator field at every transmission timing (TO) transmitted toward a plurality of TRPs, and pre-setting a set of DMRS ports associated with each port of the PT-RS in the transmission direction of the plurality of TRPs, wherein the set of DMRS ports includes DMRS ports for transmitting the PT-RS.

[0022] Optionally, the UE reports that it supports a PT-RS replacement mapping method, and if the UE is configured to map according to the replacement mapping method, the step further comprises, for all ports corresponding to one set of related DMRS ports configured in the network, the PT-RS ports are sequentially replaced and mapped to other DMRS ports to transmit the PT-RS and to other TOs that transmit toward the corresponding TRP, wherein the DMRS port indicated by the third PT-RS indication field is mapped to the first starting TO in the direction of transmission toward the corresponding TRP.

[0023] Optionally, the method further comprises the step of receiving the number of DMRS ports mapped to supported replacements reported by the UE and the number of DMRS ports set by the network, and mapping the PT-RS ports in the TO corresponding to the other TRP transmission direction to the number of DMRS ports mapped to replacements set by the UE.

[0024] An embodiment of the second aspect of the present disclosure provides a method for enhancing an uplink phase tracking reference signal (PT-RS), applied to a user device, the method comprising the step of receiving a command message transmitted from a network-side device, wherein the command message comprises a plurality of PT-RS command information for instructing each of a plurality of transmit / receive points (TRPs), wherein the PT-RS command information indicates that it is transmitted toward a corresponding TRP and also indicates a demodulation reference signal (DMRS) port associated with a corresponding PT-RS port.

[0025] Optionally, the step of receiving an instruction message transmitted from the network-side device includes receiving the instruction message transmitted by the network-side device via downlink control information (DCI).

[0026] An embodiment of a third aspect of the present disclosure provides an enhancement device for an uplink phase tracking reference signal (PT-RS), which is applied to a network-side device, and the device, said device,

[0027] The transmission module for transmitting a command message to a user device (UE) includes a plurality of PT-RS command information for instructing each of a plurality of transmit / receive points (TRPs), wherein the PT-RS command information indicates that it is transmitted toward the corresponding TRP and also indicates a demodulation reference signal (DMRS) port associated with the corresponding PT-RS port.

[0028] An embodiment of the fourth aspect of the present disclosure provides an enhancement device for an uplink phase tracking reference signal (PT-RS), which is applied to a user device, and the device is,

[0029] It includes a receiving module for receiving an instruction message transmitted from a network-side device, wherein the instruction message includes a plurality of PT-RS instruction information for instructing each of a plurality of transmit / receive points (TRPs), and the PT-RS instruction information indicates that it is transmitted toward a corresponding TRP and also indicates a demodulation reference signal (DMRS) port associated with a corresponding PT-RS port.

[0030] An embodiment of the fifth aspect of the present disclosure provides a communication device comprising a transceiver, a memory, and a processor connected to the transceiver and the memory, respectively, wherein the processor controls the transmission and reception of a wireless signal of the transceiver by executing computer-executable instructions of the memory, and is configured to implement a method for enhancing an uplink phase tracking reference signal (PT-RS) provided in an embodiment of the first aspect of the present disclosure or a method for enhancing an uplink phase tracking reference signal (PT-RS) provided according to the second aspect of the present disclosure.

[0031] A sixth aspect embodiment of the present disclosure provides a computer storage medium in which computer-executable instructions are stored, and said computer-executable instructions are executed by a processor to implement a method for enhancing an uplink phase tracking reference signal (PT-RS) provided in a first aspect embodiment of the present disclosure or a method for enhancing an uplink phase tracking reference signal (PT-RS) provided in a second aspect embodiment of the present disclosure.

[0032] A seventh aspect embodiment of the present disclosure provides a computer program product comprising a computer program, and when said computer program is executed by a processor, implements a method for enhancing an uplink phase tracking reference signal (PT-RS) provided in a first aspect embodiment of the present disclosure or a method for enhancing an uplink phase tracking reference signal (PT-RS) provided in a second aspect embodiment of the present disclosure.

[0033] The method, apparatus, and communication device for uplink PT-RS enhancement provided in the embodiment of the present disclosure include a network-side device transmitting an instruction message to a user device (UE), wherein the instruction message includes a plurality of PT-RS instruction information for instructing each of the transmission and reception points (TRPs) to correspond to, respectively, and the PT-RS instruction information indicates that it is transmitted toward the corresponding TRP and is also used to indicate a demodulation reference signal (DMRS) port associated with the corresponding PT-RS port. Since the instruction message transmitted to the UE includes a plurality of PT-RS instruction information transmitted toward the corresponding TRP and each PT-RS instruction information indicates a DMRS port associated with the corresponding PT-RS port, the problem of not being able to associate DMRS ports with different CPE noise sources when PT-RS is transmitted based on multiple TRPs is resolved, which is advantageous for improving system performance.

[0034] Additional aspects and advantages of the present disclosure are, in some cases, provided in the following description, in others will become apparent from the following description or will be understood from the practice of the present disclosure. Brief explanation of the drawing

[0035] The foregoing and / or additional aspects and advantages of the present disclosure will become apparent or easily understood from the description of the embodiments in conjunction with the drawings below. Figure 1 is an example of PUSCH repeat transmission type A. Figure 2 is an example of PUSCH repeat transmission type B. Figure 3 is an example of another PUSCH repeat transmission type B. FIG. 4 is a flowchart of a method for enhancing an uplink phase tracking reference signal (PT-RS) provided in an embodiment of the present disclosure. FIG. 5 is a flowchart of a method for reinforcing another uplink PT-RS provided in an embodiment of the present disclosure. FIG. 6 is a flowchart of a method for reinforcing another uplink PT-RS provided in an embodiment of the present disclosure. FIG. 7 is a flowchart of a method for reinforcing another uplink PT-RS provided in an embodiment of the present disclosure. FIG. 8 is a flowchart of a method for reinforcing another uplink PT-RS provided in an embodiment of the present disclosure. FIG. 9 is a flowchart of a method for reinforcing another uplink PT-RS provided in an embodiment of the present disclosure. FIG. 10 is a flowchart of a method for reinforcing another uplink PT-RS provided in an embodiment of the present disclosure. FIG. 11 is a flowchart of a method for reinforcing another uplink PT-RS provided in an embodiment of the present disclosure. FIG. 12 is a schematic diagram of the structure of an uplink PT-RS reinforcement device provided in an embodiment of the present disclosure. FIG. 13 is a schematic diagram of the structure of a reinforcement device for another uplink PT-RS provided in an embodiment of the present disclosure. FIG. 14 is a block diagram of a user device provided in an embodiment of the present disclosure. FIG. 15 is a schematic diagram of the structure of a network-side device provided in an embodiment of the present disclosure. Specific details for implementing the invention

[0036] Exemplary embodiments will be described in detail below and are illustrated in the accompanying drawings as examples. When referring to the drawings in the following description, the same number in different drawings represents the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the embodiments of the present disclosure as described in detail in the appended claims.

[0037] The terms used in the embodiments of this disclosure are used merely to describe specific embodiments and are not intended to limit the embodiments of this disclosure. The singular forms of “one” and “these” as used in the embodiments of this disclosure and in the appended claims also include the plural forms unless otherwise indicated in the context. It should also be understood that the term “and / or” as used herein also includes any or all possible combination of one or more enumerated related items.

[0038] As can be understood, various information may be described using terms such as first, second, third, etc. in the embodiments of the present disclosure, but said information is not limited to these terms. These terms are used merely to distinguish information of the same type from one another. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and likewise, the second information may also be referred to as the first information. Depending on the linguistic environment, for example, the word "if" used in this specification may be understood as "...when," "...in the case of," or "in response to a decision."

[0039] Hereinafter, embodiments of the present disclosure will be described in detail, and examples of such embodiments are shown in the accompanying drawings. Identical or similar numbers indicate identical or similar elements or elements having identical or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are illustrative and intended for interpretation of the present invention and should not be understood as a limitation to the present invention.

[0040] Phase noise (PN) destroys the orthogonality of each subcarrier in an OFDM (Orthogonal Frequency Division Multiplexing) system through the operation of a local oscillator, which causes Common Phase Error (CPE) to rotate the modulation constellation at a fixed angle, causing Inter-Carrier Interference (ICI) and scattering of constellation points,

[0041] This situation is more pronounced at high frequencies. Because the influence of CPE is greater, compensation for CPE can be primarily considered in NR (New Radio). In NR, PT-RS signals used for CPE estimation are designed; to improve signal coverage and enhance signal quality, PT-RS is configured at the terminal by the network as a UE-specific reference signal, and PT-RS is used to track phase noise introduced by local oscillators in the gNB and UE. PT-RS can be regarded as an extension of DMRS and shares a close relationship, such as using the same precoding, port association, orthogonal sequence generation, and QCL association.

[0042] The number of PT-RS ports and the number of phase noise sources are related, and when multiple independent phase noise sources exist, each phase noise source requires one PT-RS port for phase estimation. Therefore, in the NR15 / 16, one downlink PT-RS port and two uplink PT-RS ports are supported.

[0043] Whether PT-RS signals are transmitted in the uplink is also controlled through upper-layer parameter settings. If PT-RS signals are not configured for the UE in the upper-layer parameters, the UE does not transmit PT-RS signals in the uplink. If the upper layer configures parameters including PT-RS signals for the UE, and the number of PT-RS ports is 1 or 2, the PTRS-DMRS association indicator field in ULDCI0_1 / 0_2 indicates that one DM-RS port is associated with the corresponding PT-RS port. When the number of PT-RS ports is 1, the specific association relationships are shown in Table 1.

[0044] Value DMRS Port 0 First scheduling DMRS port 1 Second scheduling DMRS port 2 Third scheduling DMRS port 3 Fourth scheduling DMRS port

[0045] Value in Table 1 is the specified value, and DMRS ports describe the corresponding port number relationships represented by the value specified by Value. When the specified value of Value is 0, the first scheduling DMRS port is associated with the PT-RS port; when the specified value of Value is 1, the second scheduling DMRS port is associated with the PT-RS port; when the specified value of Value is 2, the third scheduling DMRS port is associated with the PT-RS port; and when the specified value of Value is 4, the fourth scheduling DMRS port is associated with the PT-RS port.

[0046] The maximum number of PT-RS ports is determined by the parameter settings of the upper layer. When the specified maximum number of PT-RS ports is 2, the network-side devices are divided into 2 groups through DMRS ports corresponding to SRS (Sounding Reference Signal) resources, and each establishes a related relationship.

[0047] When the number of PT-RS ports is 2, the specific relationship is shown in Table 2.

[0048] Value of MSB DMRS Port Value of LSB DMRS Port 0 1st DMRS port of shared PT-RS port 0 0 1st DMRS port of shared PT-RS port 1 1 2nd DMRS port of shared PT-RS port 0 1 Shared 2nd DMRS port of the corresponding PT-RS port 1

[0049] Value of MSB indicates the value indicated by the maximum effective bit, and Value of LSB indicates the value indicated by the minimum effective bit. If the value indicated by the maximum effective bit is 0, PT-RS Port 0 is associated with the first DMRS port that shares said PT-RS Port 0. If the value indicated by the maximum effective bit is 1, PT-RS Port 0 is associated with the second DMRS port that shares said PT-RS Port 0. If the value indicated by the minimum effective bit is 0, PT-RS Port 1 is associated with the first DMRS port that shares said PT-RS Port 1. If the value indicated by the minimum effective bit is 1, PT-RS Port 1 is associated with the second DMRS port that shares said PT-RS Port 1.

[0050] Each element of Table 1 and Table 2 exists independently, and while these elements are listed exemplarily in the same table, it can be understood that not all elements in the table must exist simultaneously as depicted in the table. The value of each element does not depend on the value of any other element in Table 1 and Table 2. Therefore, those skilled in the art can understand that the value of each element in Table 1 and Table 2 is an independent embodiment.

[0051] PUSCH's uplink transmission schemes include two methods: codebook-based uplink transmission and non-codebook uplink transmission. PUSCH transmissions directed toward different TRPs, and directional information, can be indicated via the SRI domain during DCI signaling. Currently, PUSCH's TDM (Testing Data Management) recurrence methods primarily consist of PUSCH Recurrence Type A and PUSCH Recurrence Type B.

[0052] PUSCH Repeated Transmission Type A: Repeated transmission between time slots is established through RRC (Radio Resource Control) signaling, and the same TB (Transport Block) is repeatedly transmitted with multiple transmission timings. Since signal commands at the cell edge are poor, it is necessary to transmit a single piece of information multiple times; therefore, this transmission type is mainly applied at the cell edge and simultaneously limits the number of transmission layers to one-way transmission. A single PUSCH is transmitted over K consecutive time slots, i.e., K transmission timings, and transmission starts at the S-th symbol of the starting time slot, and each transmission timing lasts for L symbols, and simultaneously S+L does not exceed the time slot boundary.

[0053] Figure 1 is an example of PUSCH repeat transmission type A. As shown in Figure 1, the same transmission block is repeated at two transmission timings, and each transmission timing lasts for four symbols.

[0054] PUSCH Repeated Transmission Type B: This transmission type can implement consecutive transmissions one by one for the same TB and can cross time slot boundaries. This transmission type has no limit on the number of transmission layers and can support data transmission of uplink layers 1-4. In the time domain, a single PUSCH starts transmission at the S-th symbol of the start time slot and transmits K transmission timings consecutively, each transmission timing occupies L symbols consecutively (back-to-back), and transmission S+L can cross time slot boundaries.

[0055] Figure 2 is an example of PUSCH repeat transmission type B. As shown in Figure 2, one PUSCH starts transmission at the fourth symbol of the start time slot, transmits four transmission timings consecutively, each transmission timing occupies four symbols consecutively, and the transmission can cross the time slot boundary, thus completing one PUSCH repeat transmission with a length greater than the length of one time slot.

[0056] Figure 3 is an example of another PUSCH repeat transmission type B. As shown in Figure 3, one PUSCH starts transmission at the fourth symbol of the start time slot, transmits one transmission timing continuously, each transmission timing continuously occupies 14 symbols, and the transmission can cross the time slot boundary, thus completing one PUSCH repeat transmission with a length greater than the length of one time slot.

[0057] For a PUSCH based on multi-TRP transmission, the terminal gains additional spatial diversity gain and improves transmission reliability by transmitting a unified TB of the PUSCH toward different TRPs. Transmissions corresponding to different beam directions can be mapped for different transmission timings. Specifically, through the following multiple possible mapping rule schemes, the repetitive transmission of multiple TBs can be mapped to K specific transmission timings. Thus, transmission timings corresponding to beam transmissions for different TRPs are divided into two groups. Below, K=8 is used as an example. For instance, alternating mapping is 121212, continuous mapping is 1121122, and half mapping is 11412222.

[0058] In PUSCH transmissions for different TRPs, different CPE noise sources present at the terminal are not the same during the transmission process for the different TRPs. The strongest DMRS port associated with one TRP in the PT-RS is not necessarily the same as the strongest DMRS port transmitted to the other TRP. Therefore, PT-RS and user uplink scheduling must consider redefining the association between DMRS ports—that is, correlation enhancement. Otherwise, the estimation accuracy of PT-RS cannot be ensured, which reduces the compensation effect for CPEs and affects system performance.

[0059] Regarding the above problem, the present disclosure provides a method, apparatus, and communication device for enhancing an uplink phase tracking reference signal (PT-RS).

[0060] FIG. 4 is a flowchart of a method for amplifying an uplink phase tracking reference signal (PT-RS) provided in an embodiment of the present disclosure. The method for amplifying an uplink PT-RS can be applied to a network-side device.

[0061] Network-side devices may include access network devices and core network devices, wherein the access network device is exemplified by a base station. A base station may include a plurality of cells that provide services to terminal devices. Depending on the specific application situation, each cell may also include a plurality of TRPs, or be a device or other name that communicates with a wireless terminal device through one or more sectors at an air interface within the access network. For example, the base station according to the embodiments of the present disclosure may be a Base Transceiver Station (BTS) in GSM (Global System for Mobile communications) or CDMA (Code Division Multiple Access), may be a base station (NodeB) in WCDMA (Wide-band Code Division Multiple Access), may be an evolutionary Node B (abbreviated as eNB or e-NodeB) in an LTE (long-term evolution) system, may be a 5G base station (abbreviated as gNB) in a 5G network architecture (next generation system), may be a Home evolved Node B (HeNB), relay node, home base station (femto), pico base station, etc., but is not limited to the embodiments of the present disclosure.

[0062] As illustrated in FIG. 4, the method for reinforcing the uplink PT-RS may include the following step 101.

[0063] Step 101, a command message is transmitted to a user device (UE), and the command message includes multiple PT-RS command information to indicate each of the multiple transmit / receive points (TRP), and the PT-RS command information is used to indicate that it is transmitted toward the corresponding TRP and also to indicate the demodulation reference signal (DMRS) port associated with the corresponding PT-RS port.

[0064] A terminal device may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connectivity capabilities, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may differ; for example, in a 5G system, the terminal device may be called a User Equipment (UE). A wireless terminal device may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN), and the wireless terminal device may be a mobile terminal device, for example, a mobile phone (or referred to as a "cellular" phone) and a computer having a mobile terminal device, for example, a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device, and these exchange language and / or data with the radio access network.

[0065] For example, the terminal device may be a device such as a Personal Communication Service (PCS) phone, a wireless phone, a Session Initiated Protocol (SIP) phone, a Wireless Local Loop (WLL), or a Personal Digital Assistant (PDA). The wireless terminal device may be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, and is not limited to the embodiments of the present disclosure.

[0066] In an embodiment of the present disclosure, in a PUSCH repeated transmission, since it is difficult for a port associated with a PT-RS port not to change at multiple transmission timings due to the influence of channel change and estimation delay, for a PUSCH transmission directed toward a different TRP, the network-side device transmits a command message to the UE containing multiple PT-RS command information to instruct each of the multiple TRPs to correspond to each.

[0067] As the carrier frequency of the oscillator increases, phase noise also increases; therefore, 5G wireless networks operating in high frequency bands (e.g., millimeter frequency bands) can eliminate phase noise using PT-RS signals. PT-RS is a specific reference signal for the user terminal (i.e., the PT-RS signal is different for each terminal), can be beamformed, and can be included in scheduled resources. The number of PT-RS ports can be smaller than the total number of ports, and orthogonality between PT-RS ports can be implemented through Frequency-division multiplexing (FDM). Additionally, the configuration of the PT-RS signal is performed according to the oscillator quality, carrier frequency, Orthogonal Frequency Division Multiplexing (OFDM) subcarrier spacing, and the scheduling and encoding format for signal transmission.

[0068] PT-RS instruction information indicates that it is being transmitted toward the corresponding TRP, and also indicates the DMRS port associated with the corresponding PT-RS port.

[0069] In the method for enhancing an uplink PT-RS according to an embodiment of the present disclosure, a network-side device transmits a command message to a UE, and the command message includes a plurality of PT-RS command information for instructing each of the transmission and reception points (TRPs) to correspond to, respectively. The PT-RS command information indicates that it is transmitted toward the corresponding TRP and also indicates a demodulation reference signal (DMRS) port associated with the corresponding PT-RS port. Since the command message transmitted to the UE includes a plurality of PT-RS command information transmitted toward the corresponding TRP and each PT-RS command information indicates a DMRS port associated with the corresponding PT-RS port, the problem of not being able to associate DMRS ports with different CPE noise sources when PT-RS is transmitted based on multiple TRPs is resolved, which is advantageous for improving system performance.

[0070] As must be explained, the above-described possible embodiments may be practiced alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0071] An embodiment of the present disclosure provides a method for strengthening another uplink PT-RS, and FIG. 5 is a flowchart of a method for strengthening another uplink PT-RS provided in an embodiment of the present disclosure. The method for strengthening the uplink PT-RS can be applied to a network-side device. The method for strengthening the uplink PT-RS may be executed alone, or may be executed in combination with any embodiment of the present disclosure or a possible embodiment of the embodiment, or may be executed in combination with any technical method among related technologies.

[0072] As illustrated in FIG. 5, the method for reinforcing the uplink PT-RS may include the following 201 steps.

[0073] Step 201, send a command message to the UE via downlink control information (DCI).

[0074] In an embodiment of the present disclosure, the network-side device can transmit an instruction message to the UE via the DCI.

[0075] The instruction message includes multiple PT-RS instruction information for instructing each of the multiple transmitting and receiving points (TRPs), and the PT-RS instruction information indicates that it is transmitted toward the corresponding TRP and also indicates the DMRS port associated with the corresponding PT-RS port.

[0076] In an embodiment of the present disclosure, a directive message can be determined based on the maximum number of uplink transport layers supported by the current Bandwidth Part (BWP) of a UE configured in the network and the number of PT-RS ports corresponding to the uplink transport of the UE configured in the network.

[0077] In an embodiment of the present disclosure, a PUSCH for a plurality of TRPs transmits a corresponding independent PT-RS reference signal, and each port of the PT-RS is associated with a modulation reference signal (DMRS) port in the same TRP transmission direction. Accordingly, when the PT-RS is transmitted based on multiple TRPs, the technical problem of not being able to associate DMRS ports with different CPE noise sources is resolved.

[0078] As must be explained, the above-described possible embodiments may be practiced alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0079] Embodiments of the present disclosure provide a method for strengthening another uplink PT-RS, and FIG. 6 is a flowchart of the method for strengthening another uplink PT-RS provided in an embodiment of the present disclosure. The method for strengthening the uplink PT-RS can be applied to a network-side device. The method for strengthening the uplink PT-RS may be executed alone, or may be executed in combination with any embodiment of the present disclosure or a possible embodiment of the embodiment, or may be executed in combination with any technical method among related technologies.

[0080] As illustrated in FIG. 6, the method for reinforcing the uplink PT-RS may include the following step 301.

[0081] In step 301, in response to the maximum number of uplink transport layers configured in the network being 2 layers and the number of uplink PT-RS ports being 1, the DCI includes a corresponding PT-RS indication field.

[0082] In an embodiment of the present disclosure, when the maximum number of uplink transport layers set in the network is two layers and the number of uplink PT-RS ports is one, the instruction message includes a first PT-RS instruction field, and the first PT-RS instruction field includes PT-RS instruction information corresponding to each of the PT-RS transmitted in the direction of transmission of a plurality of TRPs. That is, each PT-RS instruction information in the first PT-RS instruction field has a one-to-one correspondence with a plurality of TRPs.

[0083] For example, assuming that a beam is transmitted to two TRPs, the first PT-RS instruction field may include PT-RS instruction information corresponding to the transmission direction of TRP1 and PT-RS instruction information corresponding to the transmission direction of TRP2.

[0084] PT-RS instruction information indicates transmission toward the corresponding TRP direction and also indicates the DMRS port associated with the PT-RS port used by the PTRS transmitted from the corresponding TRP direction. In other words, there is a one-to-one correspondence between the DMRS port associated with the PT-RS port indicated by the PT-RS instruction information.

[0085] In an embodiment of the present disclosure, at every transmission timing (TO) transmitted toward a plurality of TRPs, a PT-RS port is mapped to the PT-RS instruction information, and a PT-RS is transmitted using a DMRS port associated with the corresponding PT-RS port indicated by the PT-RS instruction information.

[0086] A DMRS port group associated with each PT-RS port in multiple TRP transmission directions is predefined or preconfigured, and the DMRS port group includes a DMRS port for transmitting PT-RS.

[0087] For example, when there is one uplink PT-RS port and a beam is transmitted toward two TRPs, the maximum effective bit is used to indicate that the PT-RS transmitted toward TRP1 is associated with the corresponding DMRS port that shares the corresponding PT-RS port, and the minimum effective bit is used to indicate that the PT-RS transmitted toward TRP2 is associated with the corresponding DMRS port that shares the corresponding PT-RS port. At every transmission timing (TO) transmitted toward TRP1, the PT-RS is transmitted using the DMRS port indicated by the maximum indicator bit, and at every TO transmitted toward TRP2, the PT-RS is transmitted using the DMRS port indicated by the minimum indicator bit.

[0088] In an embodiment of the present disclosure, it is reported that a UE supports a PT-RS replacement mapping method, and when a UE configured in a network performs mapping using the replacement mapping method, at all ports configured with a set of DMRS ports associated with each PT-RS port configured in the network, each PT-RS port is replaced and mapped to another DMRS port associated with the PT-RS port to transmit PT-RS, and additionally, at different transmission timings (TO) in the corresponding TRP transmission direction, PT-RS is transmitted using the DMRS port associated with the PT-RS port.

[0089] The DMRS port indicated by the PT-RS instruction information is mapped to the first start transmission timing (TO) in the corresponding TRP transmission direction.

[0090] For example, in all TOs transmitted toward TRP1, the PT-RS port is alternately mapped to the set of DMRS ports corresponding to the shared configuration, and the DMRS port indicated by the maximum indication bit is mapped to the first starting TO in the corresponding beam direction; and in all TOs transmitted toward TRP2, the PT-RS port is alternately mapped to the set of DMRS ports corresponding to the shared configuration, and the DMRS port indicated by the minimum indication bit is mapped to the first starting TO in the corresponding beam direction.

[0091] In an embodiment of the present disclosure, the mapping of the beam transmitted toward the corresponding TRP and the TO may use an alternating mapping or a continuous mapping method, and the PT-RS corresponds to different TOs according to the same rule.

[0092] In the method of uplink PT-RS enhancement of an embodiment of the present disclosure, when the maximum number of uplink transport layers set in the network is two layers and the number of uplink PT-RS ports is one, the DCI includes one corresponding PT-RS indication field. Therefore, when transmitting a beam to a plurality of TRPs, the PT-RS indication field included in the DCI includes a plurality of PT-RS indication information corresponding one-to-one with the plurality of TRPs, so that the DMRS port associated with the corresponding PT-RS port is indicated, thereby avoiding the problem of inaccuracy in phase noise estimation due to channel change and estimation delay.

[0093] As must be explained, the above-described possible embodiments may be practiced alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0094] Embodiments of the present disclosure provide a method for strengthening another uplink PT-RS, and FIG. 7 is a flowchart of the method for strengthening another uplink PT-RS provided in an embodiment of the present disclosure. The method for strengthening the uplink PT-RS can be applied to a network-side device. The method for strengthening the uplink PT-RS may be executed alone, or may be executed in combination with any embodiment of the present disclosure or a possible embodiment of the embodiment, or may be executed in combination with any technical method among related technologies.

[0095] As illustrated in FIG. 7, the method for reinforcing the uplink PT-RS may include the following steps.

[0096] Step 401, in response to the fact that the maximum number of uplink transport layers configured in the network is 2 layers and the number of uplink PT-RS ports is 2, no instruction message is added to the DCI.

[0097] In an embodiment of the present disclosure, when the maximum number of uplink transport layers supported by the current BWP for a UE configured in the network is 2 layers and the number of uplink PT-RS ports is 2, the network-side device transmits the DCI directly to the UE without adding a directive message to the DCI.

[0098] Since the number of uplink PT-RS ports is 2 and one PT-RS port corresponds to one DMRS port, it is possible to determine the DMRS port associated with the PT-RS port without adding a directive message to the DCI, and thus avoid the problem of inaccurate phase noise estimation due to channel change and estimation delay.

[0099] As must be explained, the above-described possible embodiments may be practiced alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0100] Embodiments of the present disclosure provide a method for strengthening another uplink PT-RS, and FIG. 8 is a flowchart of the method for strengthening another uplink PT-RS provided in an embodiment of the present disclosure. The method for strengthening the uplink PT-RS may be applied to a network-side device. The method for strengthening the uplink PT-RS may be executed alone, or may be executed in combination with any embodiment of the present disclosure or a possible embodiment of the embodiment, or may be executed in combination with any technical method among related technologies.

[0101] As illustrated in FIG. 8, the method for reinforcing the uplink PT-RS may include the following step 501.

[0102] Step 501, in response to the maximum number of uplink transport layers set in the network being 1 layer, do not add a directive message to the DCI.

[0103] In an embodiment of the present disclosure, when the maximum number of uplink transport layers supported by the current BWP for a UE configured in the network is 1 layer, the network-side device transmits the DCI directly to the UE without adding a directive message to the DCI.

[0104] If the UE configured in the network currently supports single-layer transmission in the BWP, it can be understood that there is a PT-RS port and a DMRS port corresponding to the PT-RS port, without the need for distinction.

[0105] As must be explained, the above-described possible embodiments may be practiced alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0106] Embodiments of the present disclosure provide a method for strengthening another uplink PT-RS, and FIG. 9 is a flowchart of the method for strengthening another uplink PT-RS provided in an embodiment of the present disclosure. The method for strengthening the uplink PT-RS may be applied to a network-side device. The method for strengthening the uplink PT-RS may be executed alone, or may be executed in combination with any embodiment of the present disclosure or a possible embodiment of the embodiment, or may be executed in combination with any technical method among related technologies.

[0107] As illustrated in FIG. 9, the method for reinforcing the uplink PT-RS may include the following step 601.

[0108] Step 601, in response to the maximum number of uplink transport layers set in the network being greater than 2 layers, the DCI includes two corresponding independent PT-RS indication fields.

[0109] In an embodiment of the present disclosure, when a UE configured in a network has a maximum number of uplink transport layers supported by the current BWP that is greater than 2 layers and transmits a directive message to the UE through a network-side device DCI, the DCI includes two corresponding independent PT-RS directive fields.

[0110] In a possible embodiment of the present disclosure, when the maximum number of uplink transport layers supported by the current BWP in a UE configured in the network is greater than two layers and the number of uplink PT-RS ports is one, the instruction message includes a plurality of second PT-RS instruction fields, each second PT-RS instruction field corresponds to one of the TRPs, indicates that the second PT-RS instruction field is transmitted toward the corresponding TRP, and also indicates a DMRS port associated with the corresponding PT-RS port.

[0111] For example, when a UE configured in the network has a maximum number of uplink transport layers supported in the current BWP that is 3 or 4 layers and transmits a beam to 2 TRPs, the instruction message transmitted by the network-side device to the UE includes 2 second PT-RS instruction fields, wherein 1 second PT-RS instruction field indicates that it is transmitted toward TRP1 and also indicates the DMRS port associated with the corresponding PT-RS port, and the other second PT-RS instruction field indicates that it is transmitted toward TRP2 and also associated with the corresponding PT-RS port.

[0112] In an embodiment of the present disclosure, at every transmission timing (TO) transmitted toward a plurality of TRPs, a PT-RS is transmitted by mapping a PT-RS port to a DMRS port indicated by a second PT-RS indicator field, and a set of DMRS ports associated with a PT-RS port in the transmission direction of a plurality of TRPs is predefined or pre-set, and the set of DMRS ports includes a DMRS port for transmitting PT-RS.

[0113] For example, when transmitting beams to TRP1 and TRP2 simultaneously, for all TOs transmitted toward TRP1, the PT-RS port is mapped to the DMRS port indicated by the first second PT-RS indicator field and transmitted, and for all TOs transmitted toward TRP2, the PT-RS port is mapped to the DMRS port indicated by the second second PT-RS indicator field and transmitted.

[0114] In an embodiment of the present disclosure, it is reported that a UE supports a PT-RS replacement mapping scheme, and when a UE configured in a network performs mapping using the replacement mapping scheme, at all ports corresponding to one set of related DMRS ports configured in the network, the PT-RS ports are replaced with other DMRS ports and are also mapped to other TOs for corresponding TRP transmissions.

[0115] The DMRS port indicated by the second PT-RS instruction field is mapped to the first start TO in the corresponding TRP transmission direction.

[0116] For example, when transmitting beams to TRP1 and TRP2 simultaneously, for all TOs transmitted toward TRP1, a corresponding set of DMRS ports is shared using an alternating mapping method, and the DMRS port indicated by the first second PT-RS instruction field is mapped to the first starting TO in the corresponding TRP1 transmission direction; and for all TOs transmitted toward TRP2, a corresponding set of DMRS ports is shared using an alternating mapping method, and the DMRS port indicated by the second second PT-RS instruction field is mapped to the first starting TO in the corresponding TRP2 transmission direction.

[0117] In an embodiment of the present disclosure, when the maximum number of uplink transport layers supported by the current BWP of a UE configured in the network is greater than 2 layers and the number of uplink PT-RS ports is 2, the instruction message includes a plurality of third PT-RS instruction fields.

[0118] Each third PT-RS indicator field corresponds to one TRP, and the third PT-RS indicator field is transmitted toward the corresponding TRP and is used to indicate two DMRS ports associated with two PT-RS ports.

[0119] For example, assuming that a beam is transmitted to two TRPs, the first third PT-RS indicator field is transmitted toward TRP1 and indicates two DMRS ports associated with two PT-RS ports, and the second third PT-RS indicator field is transmitted toward TRP2 and indicates two DMRS ports associated with two PT-RS ports.

[0120] In an embodiment of the present disclosure, at every transmission timing (TO) transmitted toward a plurality of TRPs, a PT-RS is transmitted by mapping a PT-RS port to two DMRS ports indicated by a third PT-RS indicator field, and a set of DMRS ports associated with each port of the PT-RS in the transmission direction of the plurality of TRPs is predefined or pre-set.

[0121] The DMRS port set includes a DMRS port for transmitting PT-RS.

[0122] For example, assuming that a beam is transmitted to two TRPs, in all TOs transmitted toward TRP1, the PT-RS port is mapped to two DMRS ports indicated by the first third PT-RS indicator field and transmitted, and in all TOs transmitted toward TRP2, the PT-RS port is mapped to two DMRS ports indicated by the second third PT-RS indicator field and transmitted.

[0123] In an embodiment of the present disclosure, it is reported that a UE supports a PT-RS replacement mapping scheme, and when a UE configured in a network performs mapping using the replacement mapping scheme, at all ports corresponding to one set of related DMRS ports configured in the network, the PT-RS ports are sequentially replacement mapped to other DMRS ports and mapped to other TOs for corresponding TRP transmissions.

[0124] The DMRS port indicated by the third PT-RS instruction field is mapped to the first start TO in the corresponding TRP transmission direction.

[0125] For example, assuming that a beam is transmitted to two TRPs, in all TOs transmitted toward TRP1, each port is mapped alternately in a corresponding shared DMRS port group, and the PT-RS is mapped to a set of DMRS ports corresponding to the shared configuration, and the two DMRS ports indicated by the first third PT-RS instruction field are mapped to the first starting TO in the TRP transmission direction, and in all TOs transmitted toward TRP2, each port is mapped alternately in a corresponding shared DMRS port group, and the PT-RS is mapped to the first starting TO in the TRP transmission direction.

[0126] As must be explained, the above-described possible embodiments may be practiced alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0127] Embodiments of the present disclosure provide a method for strengthening another uplink PT-RS, and FIG. 10 is a flowchart of the method for strengthening another uplink PT-RS provided in an embodiment of the present disclosure. The method for strengthening the uplink PT-RS may be applied to a network-side device. The method for strengthening the uplink PT-RS may be executed alone, or may be executed in combination with any embodiment of the present disclosure or a possible embodiment of the embodiment, or may be executed in combination with any technical method among related technologies.

[0128] As illustrated in FIG. 10, the method for reinforcing the uplink PT-RS may include the following step 701.

[0129] Step 701 receives the number of DMRS ports mapped to replacements reported and supported by the UE, and the number of DMRS ports set by the network.

[0130] The number of DMRS ports mapped by the replacement set by the UE maps the PT-RS at the TO corresponding to the other TRP transmission direction.

[0131] In an embodiment of the present disclosure, the UE can set the number of DMRS ports mapped to replacement when transmitting a beam according to actual requirements, and thus report the number of ports to the network-side device so that the network-side device receives the number of DMRS ports mapped to replacement reported and supported by the UE.

[0132] As must be explained, the above-described possible embodiments may be practiced alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0133] To implement the above-described embodiment, the present disclosure further provides a method for reinforcing another uplink PT-RS, and FIG. 11 is a flowchart of a method for reinforcing another uplink PT-RS provided in an embodiment of the present disclosure. The method for reinforcing the uplink PT-RS may be applied to a user device. The method for reinforcing the uplink PT-RS may be executed alone, may be executed in combination with any embodiment of the present disclosure or a possible embodiment of the embodiment, or may be executed in combination with any technical method among related technologies.

[0134] As illustrated in FIG. 11, the method for reinforcing the uplink PT-RS may include the following step 801.

[0135] Step 801, receive an instruction message transmitted from the network-side device.

[0136] The instruction message includes multiple PT-RS instruction information to instruct each of the multiple Transmit / Receive Points (TRPs), and the PT-RS instruction information indicates that it is being transmitted toward the corresponding TRP and is also used to indicate the Demodulation Reference Signal (DMRS) port associated with the corresponding PT-RS port.

[0137] In one possible embodiment of the present disclosure, the UE can receive an instruction message transmitted via the DCI by a network-side device.

[0138] As to what needs to be explained, the description of the method for strengthening the uplink PT-RS executed for a network-side device in any of the embodiments of FIGS. 4-10 described above also applies to the method for strengthening the uplink PT-RS executed for a user device in this embodiment, and its implementation principle is similar, so the description is omitted here.

[0139] The method for enhancing an uplink PT-RS according to an embodiment of the present disclosure comprises a UE receiving an instruction message transmitted from a network-side device, wherein the instruction message includes a plurality of PT-RS instruction information for instructing each of the plurality of transmit / receive points (TRPs) to correspond to, and wherein the PT-RS instruction information indicates that it is transmitted toward the corresponding TRP and also indicates a demodulation reference signal (DMRS) port associated with the corresponding PT-RS port. Since the instruction message transmitted to the UE includes a plurality of PT-RS instruction information transmitted toward the corresponding TRP and each PT-RS instruction information indicates a DMRS port associated with the corresponding PT-RS port, the problem of being unable to associate DMRS ports with different CPE noise sources when the PT-RS is transmitted based on multiple TRPs is resolved, which is advantageous for improving system performance.

[0140] As must be explained, the above-described possible embodiments may be practiced alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0141] Corresponding to the method of reinforcing the uplink PT-RS provided in the embodiments of FIGS. 4 to 10 described above, the present disclosure further provides a reinforcing device for the uplink PT-RS, and since the reinforcing device for the uplink PT-RS provided in the embodiments of the present disclosure corresponds to the method of reinforcing the uplink PT-RS provided in the embodiments of FIGS. 4 to 10 described above, the embodiment of the method of reinforcing the uplink PT-RS is also applied to the reinforcing device for the uplink PT-RS provided in the embodiments of the present disclosure and is not described in detail in the present disclosure.

[0142] FIG. 12 is a schematic diagram of the structure of an uplink PT-RS reinforcement device provided in an embodiment of the present disclosure. The device can be applied to a network-side device.

[0143] As illustrated in FIG. 12, the reinforcement device (1200) of the uplink PT-RS may include a transmission module (1201).

[0144] The transmission module (1201) transmits a command message to a user device (UE), and the command message includes multiple PT-RS command information for instructing each of the multiple transmission / reception points (TRPs), and the PT-RS command information indicates that it is transmitted toward the corresponding TRP and is also used to indicate the demodulation reference signal (DMRS) port associated with the corresponding PT-RS port.

[0145] Optionally, the transmission module (1201) also transmits an instruction message to the UE via downlink control information (DCI).

[0146] Optionally, the instruction message is determined based on the maximum number of uplink transport layers supported by the UE in the current partial bandwidth (BWP) configured in the network and the number of PT-RS ports corresponding to the UE uplink transport configured in the network.

[0147] Optionally, in response to the maximum number of uplink transport layers configured in the network being 2 and the number of uplink PT-RS ports being 1, the DCI includes a corresponding 1 PT-RS indication field, and

[0148] In response to the fact that the maximum number of uplink transport layers configured in the network is 2 and the number of uplink PT-RS ports is 2, without adding a directive message to the DCI,

[0149] In response to the maximum number of uplink transport layers configured in the network being 1 layer, without adding a directive message to the DCI,

[0150] In response to the maximum number of uplink transport layers set in the network being greater than 2 layers, the DCI includes two corresponding independent PT-RS indication fields.

[0151] Optionally, each independent PT-RS reference signal corresponding to a plurality of TRPs is transmitted, and each PT-RS port is associated with a modulation reference signal (DMRS) port in the same TRP transmission direction.

[0152] Optionally, in response to the maximum number of uplink transport layers configured in the network being 2 layers and the number of uplink PT-RS ports being 1, the instruction message includes a first PT-RS instruction field, and the first PT-RS instruction field includes PT-RS instruction information that corresponds one-to-one with the PT-RS transmitted in a plurality of TRP transmission directions.

[0153] Optionally, at every transmission timing (TO) for transmitting toward multiple TRPs, a PT-RS port is mapped to PT-RS instruction information, and the PT-RS is transmitted using a DMRS port indicated by the PT-RS instruction information, and a set of DMRS ports associated with each PT-RS port in the transmission direction of multiple TRPs is pre-configured, and the set of DMRS ports includes a DMRS port for transmitting the PT-RS.

[0154] Optionally, if the UE reports that it supports the PT-RS alternate mapping method, and the UE configured in the network performs mapping using the alternate mapping method, for all ports configured with a set of DMRS ports associated with each PT-RS port configured in the network, each PT-RS port is sequentially alternately mapped to another DMRS port associated with the PT-RS port to transmit PT-RS, and transmits using the DMRS port associated with the PT-RS port at different transmission timings (TO) in the corresponding TRP transmission direction, and the DMRS port indicated by the PT-RS instruction information is mapped to the first start transmission timing (TO) in the corresponding TRP transmission direction.

[0155] Optionally, in response to the maximum number of uplink transport layers set in the network being greater than two layers and the number of uplink PT-RS ports being one, the instruction message includes a plurality of second PT-RS instruction fields, each second PT-RS instruction field corresponding to one of the TRPs, and indicates that the second PT-RS instruction field is transmitted toward the corresponding TRP, and also indicates the DMRS port associated with the corresponding PT-RS port.

[0156] Optionally, at every transmission timing (TO) transmitted toward a plurality of TRPs, the PT-RS is transmitted by mapping the PT-RS port to a DMRS port indicated by a second PT-RS indication field, and a set of DMRS ports associated with the PT-RS port in the transmission direction of the plurality of TRPs is pre-configured, and the set of DMRS ports includes a DMRS port for transmitting the PT-RS.

[0157] Optionally, if the UE reports that it supports the PT-RS replacement mapping method, and the UE configured in the network performs mapping using the replacement mapping method, the PT-RS ports at all ports corresponding to one set of related DMRS ports configured in the network are sequentially replaced and carried to other DMRS ports to transmit PT-RS, and are mapped to other TOs for the corresponding TRP transmission, and the DMRS port indicated by the second PT-RS instruction field is mapped to the first starting TO in the corresponding TRP transmission direction.

[0158] Optionally, in response to the maximum number of uplink transport layers configured in the network being greater than 2 layers and the number of uplink PT-RS ports being 2, the instruction message includes a plurality of third PT-RS instruction fields, each third PT-RS instruction field corresponding to 1 TRP, and the third PT-RS instruction field is transmitted toward the corresponding TRP and is used to indicate 2 DMRS ports associated with 2 PT-RS ports.

[0159] Optionally, at every transmission timing (TO) transmitted toward a plurality of TRPs, the PT-RS is transmitted by mapping the PT-RS port to two DMRS ports indicated by the third PT-RS indicator field, and a set of DMRS ports associated with each port of the PT-RS in the transmission direction of the plurality of TRPs is pre-set, and the set of DMRS ports includes DMRS ports for transmitting the PT-RS.

[0160] Optionally, if the UE reports that it supports the PT-RS replacement mapping method, and the UE configured in the network performs mapping using the replacement mapping method, the PT-RS ports at all ports corresponding to one set of related DMRS ports configured in the network are sequentially replaced and mapped to other DMRS ports to transmit PT-RS, and are mapped to other TOs for the corresponding TRP transmission, and the DMRS port indicated by the third PT-RS instruction field is mapped to the first starting TO in the corresponding TRP transmission direction.

[0161] Optionally, the uplink PT-RS reinforcement device (1200) may further include a receiving module for receiving the number of DMRS ports mapped to supported replacements reported by the UE and the number of DMRS ports set by the network, and the number of DMRS ports mapped to replacements set by the UE maps the PT-RS ports in the TO corresponding to the other TRP transmission direction.

[0162] The uplink PT-RS enhancement device of the embodiment of the present disclosure transmits an instruction message to a UE via a network-side device, and the instruction message includes a plurality of PT-RS instruction information for instructing each of the plurality of Transmit / Receive Points (TRPs). The PT-RS instruction information indicates that it is transmitted toward the corresponding TRP and is also used to indicate the Demodulation Reference Signal (DMRS) port associated with the corresponding PT-RS port. Since the instruction message transmitted to the UE includes a plurality of PT-RS instruction information transmitted toward the corresponding TRP and each PT-RS instruction information indicates the DMRS port associated with the corresponding PT-RS port, the problem of not being able to associate DMRS ports with different CPE noise sources when the PT-RS is transmitted based on multiple TRPs is resolved, which is advantageous for improving system performance.

[0163] As must be explained, the above-described possible embodiments may be practiced alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0164] Corresponding to the method of reinforcing the uplink PT-RS provided in the embodiment of FIG. 11 described above, the present disclosure further provides a reinforcing device for the uplink PT-RS, and since the reinforcing device for the uplink PT-RS provided in the embodiment of the present disclosure corresponds to the method of reinforcing the uplink PT-RS provided in the embodiment of FIG. 11 described above, the embodiment of the method of reinforcing the uplink PT-RS is also applied to the reinforcing device for the uplink PT-RS provided in the embodiment of the present disclosure and is not described in detail in the present disclosure.

[0165] FIG. 13 is a schematic diagram of the structure of a reinforcement device for another uplink PT-RS provided in an embodiment of the present disclosure. The device may be applied to a user device.

[0166] As illustrated in FIG. 13, the uplink PT-RS reinforcement device (1300) may include a receiving module (1301) for receiving a command message transmitted from a network-side device, and the command message includes a plurality of PT-RS command information for instructing each of a plurality of transmitting and receiving points (TRPs), and the PT-RS command information is used to indicate that it is transmitted toward the corresponding TRP and also to indicate a demodulation reference signal (DMRS) port associated with the corresponding PT-RS port.

[0167] Optionally, the receiving module (1301) also receives an instruction message transmitted via downlink control information (DCI) from a network-side device.

[0168] The uplink PT-RS enhancement device of the embodiment of the present disclosure has a UE that receives an instruction message transmitted from a network-side device, and the instruction message includes a plurality of PT-RS instruction information for instructing each of the transmission and reception points (TRPs) to correspond to, respectively. The PT-RS instruction information indicates that it is transmitted toward the corresponding TRP and also indicates a demodulation reference signal (DMRS) port associated with the corresponding PT-RS port. Since the instruction message transmitted to the UE includes a plurality of PT-RS instruction information transmitted toward the corresponding TRP and each PT-RS instruction information indicates a DMRS port associated with the corresponding PT-RS port, the problem of not being able to associate DMRS ports with different CPE noise sources when the PT-RS is transmitted based on multiple TRPs is resolved, which is advantageous for improving system performance.

[0169] As must be explained, the above-described possible embodiments may be practiced alone or in combination, and the embodiments of the present disclosure are not limited thereto.

[0170] To implement the above-described embodiment, the present disclosure further provides a communication device.

[0171] A communication device provided in an embodiment of the present disclosure comprises a processor, a transceiver, a memory, and an executable program stored in the memory and executed by the processor, and performs the method when the processor executes the executable program.

[0172] The communication device in question may be the terminal device, access network device, or core network device.

[0173] The processor may include various types of storage media that are non-transient computer storage media capable of continuing to store information stored thereon even after the power of the communication device is turned off. The communication device may include a terminal device, an access network device, or a core network device.

[0174] The above processor can be connected to memory via a bus, etc., and can read an executable program stored in memory as shown in at least one of FIGS. 4 to 11.

[0175] To implement the above-described embodiment, the present disclosure further provides a computer storage medium.

[0176] A computer storage medium provided in an embodiment of the present disclosure stores an executable program, and the executable program is executed by a processor, so that the method can implement, for example, at least one of FIGS. 4 to 11.

[0177] FIG. 14 is a block diagram of a user device provided in an embodiment of the present disclosure. For example, the user device (1400) may be a mobile phone, a computer, a digital broadcasting user device, a message sending and receiving device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0178] Referring to FIG. 14, the user device (1400) may include at least one of a processing component (1402), memory (1404), power component (1406), multimedia component (1408), audio component (1410), input / output (I / O) interface (1412), sensor component (1414), and communication component (1416).

[0179] The processing component (1402) generally controls the overall operation of the user device (1400), for example, controls operations related to display, phone calls, data communication, camera operation, and recording operation. The processing component (1402) may include at least one processor (1120) to execute commands, thereby enabling the execution of all or part of the steps of the method described above. In addition, the processing component (1402) may include at least one module to facilitate interaction between the processing component (1402) and other components. For example, the processing part (1402) may include a multimedia module to facilitate interaction between the multimedia component (1408) and the processing component (1402).

[0180] The memory (1404) is configured to store various types of data to support operations on the user device (1400). Examples of such data include commands for any application or method for operations on the user device (1400), contact data, phone book data, messages, images, videos, etc. The memory (1404) may be implemented as any type of volatile or non-volatile storage device, such as static random access memory (SRAM), electrically eraseable programmable read-only memory (EEPROM), eraseable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk, or a combination thereof.

[0181] The power component (1406) provides power to each component of the user device (1400). The power component (1406) may include a power management system, at least one power supply unit, and other components for generating, managing, and distributing power to the user device (1400).

[0182] The multimedia component (1408) includes a screen that provides an output interface between the user device (1400) and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen for receiving input signals from the user. The touch panel includes at least one touch sensor for detecting touches, slides, and gestures on the touch panel. The touch sensor may detect the boundaries of a touch or slide action, as well as the wake-up time and pressure associated with the touch or slide action. In some embodiments, the multimedia component (1408) includes at least one of a front camera or a rear camera. When the user device (1400) is in an operation mode, such as a shooting mode or a video mode, at least one of the front camera or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or may have a focal length and an optical zoom function.

[0183] The audio component (1410) is configured for the output and / or input of an audio signal. For example, the audio component (1410) includes a microphone (MIC), and when the user device (1400) is in an operation mode such as a call mode, a record mode, and a voice recognition mode, the microphone is configured to receive an external audio signal. The received audio signal may further be stored in a memory (1404) or transmitted through a communication component (1416). In some embodiments, the audio component (1410) further includes a speaker for outputting an audio signal.

[0184] The I / O interface (1412) provides an interface between the processing component (1402) and a peripheral interface module, and the peripheral interface module may be a keyboard, a click wheel, a button, etc. Such buttons may include, but are not limited to, a homepage button, a volume button, a start button, and a lock button.

[0185] The sensor component (1414) includes at least one sensor for providing an assessment of the state of each side of the user device (1400). For example, the sensor component (1414) can detect the on / off state of the device (1400) and the relative position of the component, and for example, if the component is the display and small keyboard of the user device (1400), the sensor component (1414) can detect a change in position of the user device (1400) or one component of the user device (1400), the presence or absence of contact between the user and the user device (1400), the direction or acceleration / deceleration of the user device (1400), and a change in temperature of the user device (1400). The sensor component (1414) may include an approach sensor and is configured to detect the presence of surrounding objects when there is no physical contact. The sensor component (1414) may also include a light sensor, such as a CMOS or CCD image sensor used in imaging applications. In some embodiments, the sensor component (1414) may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0186] A communication component (1416) is configured to facilitate wired or wireless communication between a user device (1400) and another device. The user device (1400) may 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 (1416) 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 (1416) further includes a Near Field Communication (NFC) module to facilitate near-field communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra-Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0187] In an exemplary embodiment, the user device (1400) may be implemented by at least one application-specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor, or other electronic component, and performs a method for strengthening the uplink PT-RS.

[0188] In an exemplary embodiment, a non-transient computer-readable storage medium containing instructions is also provided, for example, a memory (1404) containing instructions is provided, and instructions are executed by a processor (1120) of a user device (1400) to complete the method of strengthening an uplink PT-RS. For example, the non-transient computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

[0189] FIG. 15 is a schematic diagram of the structure of a network-side device provided in an embodiment of the present disclosure. For example, the network-side device may be provided as a network device or a core network device. Referring to FIG. 15, the network-side device (1500) includes a memory resource represented by a processing component (1522) comprising at least one processor and a memory (1532) that stores instructions that can be executed by the processing component (1522), such as an application program. The application program stored in the memory (1532) may include one or more modules, and one of the modules corresponds to a group of instructions. In addition, the processing component (1522) is configured to execute instructions and perform any method applied to the aforementioned network-side device, such as the method shown in FIG. 8, for example.

[0190] The network-side device (1500) may further include a power component (1526) for performing power management of the network-side device (1500), a wired or wireless network interface (1550) for connecting the network-side device (1500) to a network, and an input / output (I / O) interface (1558). The network-side device (1500) may operate an operating system similar to Windows Server™, Mac OS X™, Unix™, Linux™, and FreeBSD™ stored in memory (1532).

[0191] A person skilled in the art can readily conceive of other embodiments of the present disclosure after practicing the disclosed invention in consideration of the specification. This application is intended to encompass all variations, uses, or adaptive modifications of the present disclosure, such variations, uses, or adaptive modifications follow the general principles of the present disclosure and include general knowledge of the art or ordinary technical means not disclosed in the present invention. The specification and embodiments are merely illustrative, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0192] As can be understood, the present invention is not limited to the exact structure described above and illustrated in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

Claim 1 A method for enhancing an uplink phase tracking reference signal (PT-RS) is applied to a network-side device, and the method comprises the step of transmitting a command message to a user device (UE), wherein the command message comprises a plurality of PT-RS command information for instructing each of a plurality of transmit / receive points (TRP), and the PT-RS command information is used to indicate a demodulation reference signal (DMRS) port associated with a corresponding PT-RS port, and the step of transmitting a command message to the user device (UE) comprises the step of transmitting the command message to the UE through downlink control information (DCI), wherein the command message is determined according to the maximum number of uplink transport layers supported by the UE in the current partial bandwidth (BWP) configured in the network and the number of PT-RS ports corresponding to the uplink transmission of the UE configured in the network, wherein in response to the maximum number of uplink transport layers configured in the network being 2 layers and the number of uplink PT-RS ports being 1, the DCI includes a corresponding PT-RS command field, and in response to the maximum number of uplink transport layers configured in the network being 1 layer, the command message in the DCI A method for enhancing an uplink phase tracking reference signal, characterized in that, without adding, the DCI includes two independent PT-RS indicator fields in response to the maximum number of uplink transport layers set in the network being greater than two layers. Claim 2 A method for enhancing an uplink phase tracking reference signal according to claim 1, wherein the method further comprises the step of transmitting a corresponding independent PT-RS reference signal toward each of the plurality of TRPs, and wherein each port of the PT-RS is associated with a modulation reference signal (DMRS) port in the same TRP transmission direction. Claim 3 A method for enhancing an uplink phase tracking reference signal according to claim 1, wherein, in response to the fact that the maximum number of uplink transmission layers set in the network is 2 layers and the number of uplink PT-RS ports is 1, the instruction message includes a first PT-RS instruction field, and the first PT-RS instruction field includes PT-RS instruction information corresponding to each of the PT-RSs transmitted in a plurality of TRP transmission directions. Claim 4 A method for enhancing an uplink phase tracking reference signal according to claim 3, wherein the method further comprises the step of mapping a PT-RS port to PT-RS instruction information at every transmission timing (TO) transmitted toward a plurality of TRPs, and transmitting the PT-RS using a DMRS port indicated by the PT-RS instruction information, wherein a set of DMRS ports associated with each PT-RS port in the transmission direction of the plurality of TRPs is pre-set, and the set of DMRS ports includes a DMRS port for transmitting the PT-RS. Claim 5 A method for enhancing an uplink phase tracking reference signal, wherein, in the third paragraph, the method reports that a UE supports a PT-RS replacement mapping method and the UE is configured to map according to the replacement mapping method, at all ports configured in the network with a set of DMRS ports associated with each PT-RS port, each PT-RS port is replaced and mapped to another DMRS port associated with the PT-RS port to transmit the PT-RS, and transmits using the DMRS port associated with the PT-RS port at different transmission timings (TO) in the corresponding TRP transmission direction, and the DMRS port indicated by the PT-RS instruction information is mapped to the first start transmission timing (TO) in the corresponding TRP transmission direction. Claim 6 A method for enhancing an uplink phase tracking reference signal according to claim 1, wherein, in response to the fact that the maximum number of uplink transport layers set in the network is greater than two layers and the number of uplink PT-RS ports is one, the instruction message includes a plurality of second PT-RS instruction fields, each second PT-RS instruction field corresponds to one of the TRPs, and the second PT-RS instruction field is used to indicate a DMRS port associated with the PT-RS port corresponding to the PT-RS port. Claim 7 A method for enhancing an uplink phase tracking reference signal according to claim 6, wherein the method comprises the step of transmitting the PT-RS by mapping the PT-RS port to a DMRS port indicated by the second PT-RS indicator field at every transmission timing (TO) transmitted toward a plurality of TRPs, and pre-setting a set of DMRS ports associated with the PT-RS port in the transmission direction of the plurality of TRPs, wherein the set of DMRS ports includes a DMRS port for transmitting the PT-RS. Claim 8 A method for enhancing an uplink phase tracking reference signal, wherein, in claim 6, the method further comprises the step of reporting that the UE supports a PT-RS replacement mapping method, and when the UE is configured to map according to the replacement mapping method, at all ports corresponding to one set of related DMRS ports configured in the network, the PT-RS ports are sequentially replaced from other DMRS ports to transmit the PT-RS and mapped to other TOs that transmit toward the corresponding TRP, and the DMRS ports indicated by the second PT-RS indication field are mapped to the first start TO in the direction of transmission of the corresponding TRP. Claim 9 A method for enhancing an uplink phase tracking reference signal according to claim 1, wherein, in response to the maximum number of uplink transmission layers set in the network being greater than two layers and the number of uplink PT-RS ports being two, the instruction message includes a plurality of third PT-RS instruction fields, each of which corresponds to one of the TRPs, and the third PT-RS instruction fields are used to indicate two DMRS ports associated with the two PT-RS ports. Claim 10 A method for enhancing an uplink phase tracking reference signal according to claim 9, further comprising the step of transmitting the PT-RS by mapping the PT-RS port to two DMRS ports indicated by the third PT-RS indicator field at every transmission timing (TO) transmitted toward a plurality of TRPs, wherein a set of DMRS ports associated with each port of the PT-RS in the transmission direction of the plurality of TRPs is pre-set, and the set of DMRS ports includes DMRS ports for transmitting the PT-RS. Claim 11 A method for enhancing an uplink phase tracking reference signal, wherein, in claim 9, the method further comprises the step of reporting that the UE supports a PT-RS replacement mapping method, and when the UE is configured to map according to the replacement mapping method, at all ports corresponding to one set of related DMRS ports configured in the network, the PT-RS ports are sequentially replaced and mapped to other DMRS ports to transmit the PT-RS and to other TOs that transmit toward the corresponding TRP, and the DMRS ports indicated by the third PT-RS indicator field are mapped to the first start TO in the direction of transmission of the corresponding TRP. Claim 12 A method for enhancing an uplink phase tracking reference signal according to claim 1, wherein the method further comprises the step of receiving the number of DMRS ports mapped to supported replacements reported by the UE and the number of DMRS ports set by the network, and mapping the PT-RS ports in a TO corresponding to a different TRP transmission direction to the number of DMRS ports mapped to replacements set by the UE. Claim 13 A method for enhancing an uplink phase tracking reference signal (PT-RS) is applied to a user device, and the method comprises the step of receiving an instruction message transmitted from a network-side device, wherein the instruction message comprises a plurality of PT-RS instruction information for instructing to correspond to a plurality of transmit / receive points (TRPs), and the PT-RS instruction information is used to indicate a demodulation reference signal (DMRS) port associated with a corresponding PT-RS port, and the step of receiving an instruction message transmitted from the network-side device comprises the step of receiving the instruction message transmitted by the network-side device through downlink control information (DCI), wherein the instruction message transmitted by the network-side device through downlink control information (DCI) is obtained by the following processing, wherein, in response to the fact that the maximum number of uplink transport layers set in the network is 2 layers and the number of uplink PT-RS ports is 1, the DCI includes a corresponding PT-RS instruction field, and in response to the fact that the maximum number of uplink transport layers set in the network is 1 layer, the instruction message is not added to the DCI, and the uplink set in the network A method for enhancing an uplink phase tracking reference signal, characterized in that, in response to the maximum number of transport layers being greater than two layers, the DCI includes two corresponding independent PT-RS indicator fields. Claim 14 In an enhancement device for an uplink phase tracking reference signal (PT-RS), the device is applied to a network-side device, and the device includes a transmitting module that transmits a command message to a user device (UE), wherein the command message includes a plurality of PT-RS command information for instructing each of a plurality of transmit / receive points (TRP), and the PT-RS command information is used to indicate a demodulation reference signal (DMRS) port associated with a corresponding PT-RS port, and the transmitting module is used to transmit the command message to the UE through downlink control information (DCI), and the command message is determined according to the maximum number of uplink transport layers supported by the UE in the current partial bandwidth (BWP) configured in the network and the number of PT-RS ports corresponding to the UE's uplink transmission configured in the network, and in response to the maximum number of uplink transport layers configured in the network being 2 layers and the number of uplink PT-RS ports being 1, the DCI includes a corresponding PT-RS command field, and in response to the maximum number of uplink transport layers configured in the network being 1 layer, the command message is not added to the DCI, and the uplink configured in the network An enhancement device for an uplink phase tracking reference signal, characterized in that, in response to the maximum number of transmission layers being greater than two layers, the DCI includes two corresponding independent PT-RS indication fields. Claim 15 In an enhancement device for an uplink phase tracking reference signal (PT-RS), the device is applied to a user device and the device includes a receiving module that receives an instruction message transmitted from a network-side device, wherein the instruction message includes a plurality of PT-RS instruction information for instructing each of a plurality of transmit / receive points (TRPs), and the PT-RS instruction information is used to indicate a demodulation reference signal (DMRS) port associated with a corresponding PT-RS port, and the receiving module is used to receive the instruction message transmitted by the network-side device via downlink control information (DCI), and the instruction message transmitted by the network-side device via downlink control information (DCI) is obtained by the following processing, wherein, in response to the fact that the maximum number of uplink transport layers set in the network is 2 layers and the number of uplink PT-RS ports is 1, the DCI includes a corresponding PT-RS instruction field, and in response to the fact that the maximum number of uplink transport layers set in the network is 1 layer, the instruction message is not added to the DCI, and the maximum number of uplink transport layers set in the network An uplink phase tracking reference signal enhancement device characterized by including two independent PT-RS indicator fields corresponding to the DCI in response to being larger than two layers. Claim 16 A communication device comprising a transceiver, a memory, and a processor connected to the transceiver and the memory, respectively, wherein the processor controls the transmission and reception of wireless signals of the transceiver by executing computer-executable instructions of the memory and is configured to implement a method for strengthening an uplink phase tracking reference signal (PT-RS) according to any one of claims 1 to 12 or 13. Claim 17 A computer storage medium in which computer executable instructions are stored, wherein the computer executable instructions are executed by a processor, and the method for enhancing an uplink phase tracking reference signal (PT-RS) of any one of claims 1 to 12 or 13 is implemented. Claim 18 delete Claim 19 delete Claim 20 delete Claim 21 delete

Images