Uplink transmission control method and apparatus

Abstract

The embodiment of the present disclosure provides an uplink transmission control method and device, the method comprises: in a single downlink control information DCI scheduling based physical uplink shared channel PUSCH in a simultaneous transmission and multiple panel STxMP scenario, receiving transmission configuration information related to PTRS sent by a network device in a network scheduling multiple transmission and reception point TRP single frequency network SFN transmission mode; for non-codebook based PUSCH transmission, determining the actual sending parameters of the PTRS for PUSCH transmission based on the transmission configuration information related to the PTRS and the preset protocol rules, and sending the PTRS in the SFN transmission mode on the TO of the PUSCH corresponding to different antenna panels / TRP / beam TCI states / SRS resource sets. The scheme provided by the present disclosure can realize the enhanced indication of the SFN transmission of the PTRS, thereby supporting the CPE estimation of the terminal multi-antenna panel in the non-codebook based configuration under the SFN scheme in the STxMP transmission, so that the multi-point cooperative transmission is more effective, and the reliability and throughput of data transmission are effectively improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of mobile communication technology, in particular to an uplink transmission control method and device. BACKGROUND

[0002] In a new radio (NR) system, in order to improve the coverage of the cell edge and provide better service quality in the service area, multi-point cooperative transmission becomes an important technical means. In Rel-18, it is expected to realize simultaneous cooperative transmission through multiple antenna panels to multiple transmission and reception points (TRPs) to enhance the reliability and throughput of transmission, so the user equipment (UE) is required to have the ability to simultaneously send multiple beams. Multiple antenna panel / multi-TRP transmission can be scheduled based on a single physical downlink control channel (PDCCH).

[0003] In order to support the single frequency network (SFN) scheme of single DCI based multi-antenna panel / multi-TRP uplink simultaneous transmission, it is necessary to solve the SFN transmission and reception of the phase tracking reference signal (PTRS) for supporting the physical uplink shared channel (PUSCH). SUMMARY

[0004] The present disclosure proposes an uplink transmission control method and device. According to the proposed technical solutions, mechanisms, methods and devices, enhanced indication under SFN transmission of PTRS can be realized, thereby supporting the common phase error (CPE) estimation of the terminal multi-antenna panel under the SFN scheme in the non-codebook (NCB) based configuration under the simultaneous transmission from multiple panels (STxMP), so that the multi-point cooperative transmission is more effective, and the reliability and throughput of data transmission are effectively improved.

[0005] The first aspect embodiment of the present disclosure provides an uplink transmission control method, which is performed by a user equipment (UE), and the method comprises: in a single downlink control information (DCI) based scheduling physical uplink shared channel (PUSCH) uplink multi-antenna panel simultaneous transmission (STxMP) scenario, receiving a phase tracking reference signal (PTRS) related transmission configuration information sent by a network device in a network scheduling multi-transmission and reception point (TRP) single frequency network (SFN) transmission mode, wherein the transmission configuration information comprises a maximum number of PTRS ports, a sounding reference signal (SRS) resource indication (SRI) indication field, a demodulation reference signal (DMRS) port indication field, and a PTRS-DMRS association indication field; and for non-codebook based PUSCH transmission, determining a PTRS actual transmission parameter for PUSCH transmission based on the PTRS related transmission configuration information and a preset protocol rule, and transmitting the PTRS in a SFN transmission mode on a transmission occasion (TO) of a PUSCH corresponding to different antenna panels / TRPs / beam transmission and reception point (TCI) states / sounding reference signal (SRS) resource sets, wherein the PTRS actual transmission parameter comprises an actual number of PTRS ports and a DMRS port used for actual transmission of the PTRS.

[0006] In some embodiments of the present disclosure, the DMRS ports or port groups corresponding to the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets are associated with each other.

[0007] In some embodiments of the present disclosure, transmitting the PTRS in a SFN transmission mode on the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets comprises: in a PUSCH multi-TRP SFN transmission mode, transmitting the same number of PTRS port data on the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets, wherein each PTRS port data is the same and is transmitted through the same one or more DMRS ports.

[0008] In some embodiments of the present disclosure, the actual transmission parameters of the PTRS for PUSCH transmission determined based on the transmission configuration information and the preset protocol rules are transmitted on the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets in an SFN transmission mode respectively, including: in response to the PTRS port indexes contained in the SRS resource sets indicated by different SRI indication fields actually corresponding to different PTRS port numbers, determining the actual transmission parameters of the PTRS based on the maximum PTRS port number and the association relationship between the PTRS-DMRS ports indicated by the PTRS-DMRS association relationship indication field according to the preset protocol rules; and transmitting the PTRS on the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets in an SFN transmission mode respectively based on the actual transmission parameters of the PTRS.

[0009] In some embodiments of the present disclosure, the preset protocol rules include any one of the following: the actual PTRS port number is the PTRS port number corresponding to the preset SRI, the preset SRI is one of the SRIs respectively corresponding to the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets, and the determined actual PTRS port number and the DMRS ports used by the actually transmitted PTRS are applied to the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets respectively; the actual PTRS port number is the minimum value of the PTRS port numbers corresponding to the SRIs respectively corresponding to the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets, and the determined actual PTRS port number and the DMRS ports used by the actually transmitted PTRS are applied to the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets respectively; and the actual PTRS port number is the maximum value of the PTRS port numbers corresponding to the SRIs respectively corresponding to the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets, and the determined actual PTRS port number and the DMRS ports used by the actually transmitted PTRS are applied to the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets respectively.

[0010] In some embodiments of the present disclosure, the preset protocol rule includes any one of the following: no use of PTRS port index values corresponding to all SRS resources contained in different SRS resource sets configured by RRC, all PTRS port index parameters corresponding to all SRS resources in different SRS resource sets associated with different antenna panels / TRPs / beam TCI states / PUSCH TOs correspond to the same PTRS port, wherein the actual number of PTRS ports is 1; the values of the PTRS port index parameters corresponding to the SRS resources with the same SRS resource index in any SRS resource set associated with different antenna panels / TRPs / beam TCI states / PUSCH TOs are the same as the values of the PTRS port index parameters corresponding to the SRS resources with the same SRS resource index in another SRS resource set.

[0011] In some embodiments of the present disclosure, the method further includes: receiving RRC signaling sent by the network device, wherein the RRC signaling includes a maximum number of PTRS ports, and the actual number of PTRS ports is less than or equal to the maximum number of PTRS ports.

[0012] In some embodiments of the present disclosure, in response to the data transmission rank RANK being equal to 1 and the PTRS-DMRS association indication field being empty, the PTRS actually corresponds to single-port transmission on different PUSCH TOs and uses the indicated DMRS port for PTRS transmission.

[0013] In some embodiments of the present disclosure, in response to RANK being greater than or equal to 2 and the actual number of PTRS ports being 1, the PTRS-DMRS association indication field determines the DMRS port used by the actually transmitted PTRS port by one of the following methods: indicating the associated DMRS port with 2 bits; indicating one of the first two DMRS ports sharing the same PTRS port with 1 bit; wherein the PTRS transmission on the TOs of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets respectively according to the SFN transmission mode includes: determining the DMRS port used by the actually transmitted PTRS port based on the PTRS-DMRS association indication field, and transmitting the PTRS using the DMRS port on the TOs of the different PUSCH respectively.

[0014] In some embodiments of the present disclosure, in response to RANK being greater than or equal to 2 and the actual number of PTRS ports being 2, the PTRS-DMRS association indication field determines the DMRS port corresponding to the actually transmitted PTRS port in one of the following ways: indicates the associated DMRS port with 2 bits; indicates only one of the two DMRS ports sharing the same PTRS port with 1 bit, or the DMRS port corresponding to the same PTRS port corresponding to different SRS resource sets; wherein the transmission of the PTRS on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets in the SFN transmission mode respectively includes: determining the DMRS port corresponding to the first actually transmitted PTRS port on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on the PTRS-DMRS association indication field, determining the DMRS port corresponding to the second actually transmitted PTRS port on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on the default rule, and transmitting the PTRS respectively.

[0015] In some embodiments of the present disclosure, the DMRS port determined based on the default rule is any one of the following: the other of the first two DMRS ports; any one of the other DMRS ports when RANK>2; any one of the two DMRS ports sharing the same PTRS port.

[0016] In some embodiments of the present disclosure, the corresponding SRI of the TO of the corresponding antenna panel / TRP / beam TCI state / SRS resource set / PUSCH determined by the preset protocol rule is used to determine the actual number of PTRS ports and the DMRS port used by the actually transmitted PTRS port, and at the same time, the same PTRS port is respectively transmitted on the same DMRS port on the TO of the different antenna panels / TRPs / beam TCI states / SRS resource sets / PUSCH.

[0017] In some embodiments of the present disclosure, different SRS resource sets are associated with PUSCH transmission on multiple antenna panels, and the correspondence between different SRS resource sets and SRI indication fields is indicated by the SRS resource set indication indication field.

[0018] In a second aspect, embodiments of the present disclosure provide an uplink transmission control method, which is performed by a network device, and includes: in a single downlink control information (DCI) physical uplink shared channel (PUSCH) based uplink multi-panel simultaneous transmission (STxMP) scenario, transmitting, to a user equipment (UE), transmission configuration information related to a phase tracking reference signal (PTRS) in a network scheduling multi-transmission and reception point (TRP) single frequency network (SFN) transmission mode, wherein the transmission configuration information includes a maximum number of PTRS ports, a sounding reference signal (SRS) resource indication (SRI) indication field, a DMRS port indication field, and a PTRS-DMRS association indication field; and for non-codebook-based PUSCH transmission, determining, based on the transmission configuration information and a preset protocol rule, actual PTRS reception parameters for PUSCH transmission, and receiving the PTRS in a SFN transmission mode at a transmission occasion (TO) of the PUSCH corresponding to different antenna panels / TRPs / beam transmission and reception point (TCI) states / SRS resource sets, wherein the actual PTRS reception parameters include an actual number of PTRS ports and a DMRS port corresponding to an actual received PTRS.

[0019] In some embodiments of the present disclosure, the DMRS ports or port groups corresponding to the TO of the PUSCH associated with different antenna panels / TRPs / beam TCI states / SRS resource sets are the same.

[0020] In some embodiments of the present disclosure, the receiving the PTRS in a SFN transmission mode at the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets includes: in a PUSCH multi-TRP SFN transmission mode, receiving the same number of PTRS port data at the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets, wherein each of the PTRS port data is the same and is received through the same one or more DMRS ports.

[0021] In some embodiments of the present disclosure, the receiving the PTRS in a SFN transmission mode at the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on the actual PTRS reception parameters determined based on the transmission configuration information and the preset protocol rule includes: in response to the SRS resource sets indicated by different SRI indication fields containing different actual numbers of PTRS port indexes, receiving the PTRS in a SFN transmission mode at the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on the actual PTRS reception parameters determined based on the preset protocol rule.

[0022] In some embodiments of the present disclosure, the preset protocol rule includes any one of the following: the actual PTRS port number is the number of PTRS ports corresponding to the preset SRI, the preset SRI is one of the SRIs respectively associated with the different antenna panels / TRPs / beam TCI states / SRS resource sets / TOs of the PUSCH, and the determined actual PTRS port number and the DMRS port used by the actually transmitted PTRS are simultaneously applied to the TOs of the PUSCH corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource sets respectively; the actual PTRS port number is the minimum value of the number of PTRS ports corresponding to the SRIs respectively associated with the different antenna panels / TRPs / beam TCI states / SRS resource sets / TOs of the PUSCH, and the determined actual PTRS port number and the DMRS port used by the actually transmitted PTRS are simultaneously applied to the TOs of the PUSCH corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource sets respectively; the actual PTRS port number is the maximum value of the number of PTRS ports corresponding to the SRIs respectively associated with the different antenna panels / TRPs / beam TCI states / SRS resource sets / TOs of the PUSCH, and the determined actual PTRS port number and the DMRS port used by the actually transmitted PTRS are simultaneously applied to the TOs of the PUSCH corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource sets respectively.

[0023] In some embodiments of the present disclosure, the preset protocol rule includes any one of the following: the PTRS port index values corresponding to all SRS resources included in the different SRS resource sets configured by RRC are not used, by default, the PTRS port index parameters corresponding to all SRS resources in the SRS resource sets associated with the different antenna panels / TRPs / beam TCI states / TOs of the PUSCH all correspond to the same PTRS port, and the actual PTRS port number is 1; the values of the PTRS port index parameters corresponding to the SRS resources with the same SRS resource index in any SRS resource set associated with the different antenna panels / TRPs / beam TCI states / TOs of the PUSCH are the same as the values of the PTRS port index parameters corresponding to the SRS resources with the same SRS resource index in another SRS resource set.

[0024] In some embodiments of the present disclosure, the method further includes: sending RRC signaling to the UE, wherein the RRC signaling includes a maximum number of PTRS ports, and the actual PTRS port number is less than or equal to the maximum number of ports.

[0025] In some embodiments of the present disclosure, in response to the data transmission rank RANK being equal to 1 and the PTRS-DMRS association indication field being empty, the PTRS actually corresponds to single-port reception and uses the indicated DMRS port for PTRS reception on different PUSCH TOs.

[0026] In some embodiments of the present disclosure, in response to RANK being greater than or equal to 2 and the actual number of PTRS ports being 1, the PTRS-DMRS association indication field determines the DMRS port corresponding to the actual reception of the PTRS in one of the following ways: indicating the associated DMRS port with 2 bits; indicating one of the first two DMRS ports sharing the same PTRS port with 1 bit; wherein the reception of the PTRS on the transmission occasions TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets respectively in accordance with the SFN transmission mode includes: determining the DMRS port used by the actual reception of the PTRS port based on the PTRS-DMRS association indication field, and receiving the PTRS using the DMRS port on different PUSCH TOs respectively.

[0027] In some embodiments of the present disclosure, in response to RANK being greater than or equal to 2 and the actual number of PTRS ports being 2, the PTRS-DMRS association indication field determines the DMRS port corresponding to the actual reception of the PTRS in one of the following ways: indicating the associated DMRS port with 2 bits; indicating one of the two DMRS ports sharing the same PTRS port or the DMRS port corresponding to the same PTRS port corresponding to different SRS resource sets with 1 bit; wherein the reception of the PTRS on the transmission occasions TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets respectively in accordance with the SFN transmission mode includes: determining the DMRS port corresponding to the first actual reception of the PTRS port on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on the PTRS-DMRS association indication field, determining the DMRS port corresponding to the second actual reception of the PTRS port on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on a default rule, and receiving the PTRS respectively.

[0028] In some embodiments of the present disclosure, the DMRS port determined based on the default rule is any of the following: the other of the first two DMRS ports; any of the other DMRS ports when RANK>2; any of the two DMRS ports sharing the same PTRS port.

[0029] In some embodiments of the present disclosure, when determining the PTRS-associated DMRS port, the actual number of PTRS ports and the DMRS port used by the actual receiving PTRS port are determined by the corresponding antenna panel / TRP / beam TCI state / SRS resource set / PUSCH TO corresponding SRI determined by the preset protocol rule, and meanwhile, the same PTRS port is respectively received on the same DMRS port on different antenna panel / TRP / beam TCI state / SRS resource set / PUSCH TO.

[0030] In some embodiments of the present disclosure, different SRS resource sets are associated with PUSCH transmission on multiple antenna panels, and the correspondence between different SRS resource sets and SRI indication fields is indicated by SRS resource set indication indication fields.

[0031] The third aspect embodiment of the present disclosure provides an uplink transmission control device, which is configured in a UE, and the device comprises a transceiver module, which is configured to: in a single downlink control information DCI-based scheduling physical uplink shared channel PUSCH in a single transmission and reception point TRP simultaneous transmission STxMP scenario, receive a network device sending phase tracking reference signal PTRS-related transmission configuration information in a network scheduling multiple transmission and reception point TRP single frequency network SFN transmission mode, wherein the transmission configuration information comprises a maximum number of PTRS ports, a sounding reference signal SRS resource indication SRI indication field, a demodulation reference signal DMRS port indication field, and a PTRS-DMRS association relationship indication field; and for non-codebook-based PUSCH transmission, based on the PTRS-related transmission configuration information and the preset protocol rule to determine the actual PTRS transmission parameters for PUSCH transmission, respectively perform PTRS transmission in different antenna panel / TRP / beam TCI state / sounding reference signal SRS resource set corresponding PUSCH transmission opportunity TO according to the SFN transmission mode, wherein the actual PTRS transmission parameters comprise the actual number of PTRS ports and the DMRS port used by the actual transmitting PTRS port.

[0032] In a fourth aspect, an uplink transmission control apparatus is provided. The apparatus is configured to be deployed in a network device. The apparatus comprises a transceiver configured to: in a single downlink control information (DCI) physical uplink shared channel (PUSCH) based uplink multi-panel simultaneous transmission (STxMP) scenario, transmit, to a user equipment (UE), transmission configuration information (TCI) related to a phase tracking reference signal (PTRS) in a multi-transmission and reception point (TRP) single frequency network (SFN) transmission manner, wherein the TCI comprises a maximum number of PTRS ports, a sounding reference signal (SRS) resource indication (SRI) indication field, a demodulation reference signal (DMRS) port indication field, and a PTRS-DMRS association indication field; and determine, for a non-codebook-based PUSCH transmission, actual PTRS reception parameters for the PUSCH transmission based on the TCI related to the PTRS and a preset protocol rule, and receive the PTRS in a transmission occasion (TO) of the PUSCH corresponding to different antenna panels / TRPs / TCI states / SRS resource sets according to the SFN transmission manner, wherein the actual PTRS reception parameters comprise an actual number of PTRS ports and DMRS ports used by the actual PTRS ports.

[0033] In a fifth aspect, a communication device is provided. The communication device comprises a transceiver, a memory, and a processor. The processor is connected to the transceiver and the memory, respectively. The processor is configured to control wireless signal transceiving of the transceiver by executing computer executable instructions stored in the memory, and to implement the uplink transmission control of the first aspect or the second aspect.

[0034] In a sixth aspect, a computer storage medium is provided. The computer storage medium stores computer executable instructions. The computer executable instructions, when executed by a processor, implement the uplink transmission control of the first aspect or the second aspect.

[0035] The embodiment of the present disclosure provides an uplink transmission control method and device. In a single downlink control information DCI scheduling based physical uplink shared channel PUSCH uplink multi-antenna panel simultaneous transmission STxMP scenario, in a network scheduling multi-transmission and reception point TRP single frequency network SFN transmission mode, a phase tracking reference signal PTRS related transmission configuration information transmitted by a network device is received, wherein the transmission configuration information includes a maximum number of PTRS ports, a sounding reference signal SRS resource indication SRI indication field, a demodulation reference signal DMRS port indication field, and a PTRS-DMRS association relationship indication field; and for non-codebook based PUSCH transmission, actual PTRS transmission parameters for PUSCH transmission determined based on the PTRS related transmission configuration information and a preset protocol rule are used for transmission of the PTRS in a transmission opportunity TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / sounding reference signal SRS resource sets in a SFN transmission mode, wherein the actual PTRS transmission parameters include an actual number of PTRS ports and DMRS ports used for actual transmission of the PTRS. The scheme provided by the present disclosure can realize enhanced indication of the SFN transmission of the PTRS, thereby supporting CPE estimation of a terminal multi-antenna panel in a non-codebook based configuration under an SFN scheme in the STxMP transmission, making the multi-point cooperative transmission more effective, and effectively improving the reliability and throughput of data transmission.

[0036] Additional aspects and advantages of the present disclosure will be made apparent from the following description, which, taken together with the accompanying drawings, describes or illustrates such aspects and advantages by way of non-limiting examples. BRIEF DESCRIPTION OF DRAWINGS

[0037] The above described and / or additional aspects and advantages of the present disclosure will become apparent and easily understood from the following description, taken together with the accompanying drawings, of embodiments, in which:

[0038] Figure 1 An implementation diagram for single DCI based multi-TRP transmission according to the embodiment of the present disclosure is shown in the following figure:

[0039] Figure 2 A flowchart of an uplink transmission control according to the embodiment of the present disclosure is shown in the following figure:

[0040] Figure 3 A flowchart of an uplink transmission control according to the embodiment of the present disclosure is shown in the following figure:

[0041] Figure 4 A flowchart of an uplink transmission control according to the embodiment of the present disclosure is shown in the following figure:

[0042] Figure 5 A flowchart of an uplink transmission control according to the embodiment of the present disclosure is shown in the following figure:

[0043] Figure 6 A block diagram of an uplink transmission control device according to an embodiment of the present disclosure;

[0044] Figure 7 A block diagram of an uplink transmission control device according to an embodiment of the present disclosure;

[0045] Figure 8 A structural schematic diagram of a communication device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0046] Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings, in which the same or similar components are denoted by the same or similar reference numerals throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present disclosure, and cannot be understood as a limitation of the present disclosure.

[0047] In 5G / NR Rel-16, multi-TRP related operations are introduced mainly for PDSCH transmission, which can include single DCI operation and multi-DCI operation. With single DCI (S-DCI), a single PDCCH can be used to schedule multiple PDSCH transmissions from multiple TRPs.

[0048] Figure 1 An implementation schematic diagram of single DCI based multi-TRP transmission according to an embodiment of the present disclosure is provided. As an example, two TRPs (TRP 1 and TRP 2) are provided to communicate with a UE having multiple antenna panels (Panel 1 and Panel 2). As shown, for single DCI operation, the transmission can be scheduled based on one DCI carried by one PDCCH channel, or different DCIs carried by different PDCCHs can be considered for separate scheduling. Figure 1

[0049] ​As described above, the operations related to multi-TRP can include single-DCI operations and multi-DCI operations. On the other hand, the operations related to multi-TRP can include operations related to multi-TRP for downlink (e.g., PDSCH) and operations related to multi-TRP for uplink (e.g., PUSCH). In 5G / NR Rel-16, operations related to multi-TRP were mainly introduced for PDSCH transmission, but operations related to multi-TRP for PUSCH transmission were not defined. The R17 standard supports the repetition transmission mode for PUSCH / PUCCH channels in the Multi-TRP (M-TRP) scenario by transmitting uplink channels to different base station end TRPs in different uplink beam directions through time-division multiplexing (TDM).

[0050] For example, a terminal multi-panel implementation generally configures multiple physical panels, and the capabilities of different panels can also be different, such as different SRS port numbers, and the maximum number of data transmission layers supported by each panel can also not be the same, such as one panel supporting a maximum of 2-layer transmission and another panel supporting a maximum of 4-layer transmission. The network scheduler will determine whether the terminal is currently suitable for multi-panel uplink simultaneous transmission, and if the terminal is currently suitable for multi-panel uplink simultaneous transmission and is scheduled, the network will directly or indirectly indicate the relevant transmission parameters, including terminal specific beam indication information, data layer number used for transmission, DMRS port allocation, and precoding indication information, etc., so it is necessary to determine the configuration and specific indication of the PTRS port under S-DCI scheduling.

[0051] In R18, the transmission scheme that the uplink simultaneous transmission can support is the uplink simultaneous transmission of multi-antenna panel (Panel) / receiving and transmitting point (TRP) / transmission configuration indication (TCI). At present, the bottleneck of the communication system is still the rate and coverage of uplink transmission, so the main direction of system enhancement for R18 standard is to consider using multi-panel terminals for uplink simultaneous transmission to improve the uplink rate and further improve the transmission reliability in the Multi-TRP scenario. The transmission can be scheduled based on one DCI carried by one PDCCH channel, or different DCIs carried by different PDCCHs can be considered for scheduling. The cooperative transmission of one transport block (TB) of PUSCH transmission based on single-DCI (S-DCI) includes multiple different transmission schemes, and the currently considered synchronous transmission scheme is mainly based on SDM or FDM multiplexing without panel channel transmission. Each transmission scheme is briefly described below:

[0052] One scheme is a Space Division Multiplexing (SDM) scheme: one TB of PUSCH is transmitted on the same time-frequency resource by different panels respectively facing two different TRPs through respectively corresponding DMRS ports or port combinations allocated on different panels, different panels / TRPs / transmission occasions (TOs) are respectively associated with different TCI states, i.e., associated with different beams. On this basis, the SDM scheme is further divided into two schemes of SDM-A and SDM-B, wherein in the SDM-A scheme, different parts of one TB of PUSCH are respectively transmitted on the same time-frequency resource by different panels respectively facing two different TRPs through respectively corresponding DMRS ports or port combinations allocated on different panels, different panels / TRPs / TOs are respectively associated with different TCI states; in the SDM-B scheme, repetitions of the same TB of PUSCH corresponding to different RV versions are respectively transmitted on the same time-frequency resource by different panels respectively facing two different TRPs through respectively corresponding DMRS ports or port combinations allocated on different panels, different panels / TRPs / TOs are respectively associated with different TCI states.

[0053] Another scheme is a Frequency Division Multiplexing (FDM) scheme: one TB of PUSCH is transmitted on non-overlapping frequency domain resources on the same time domain resource by different panels respectively facing two different TRPs through the same DMRS port or port combination allocated on different panels, different panels / TRPs / TOs are respectively associated with different TCI states. On this basis, the FDM scheme is further divided into two schemes of FDM-A and FDM-B, wherein in the FDM-A scheme, different parts of one TB of PUSCH are respectively transmitted on non-overlapping frequency domain resources on the same time domain resource by different panels respectively facing two different TRPs through the same DMRS port or port combination allocated on different panels, different panels / TRPs / TOs are respectively associated with different TCI states; in the FDM-B scheme, repetitions of the same TB of PUSCH corresponding to different RV versions are respectively transmitted on non-overlapping frequency domain resources on the same time domain resource by different panels respectively facing two different TRPs through the same DMRS port or port combination allocated on different panels, different panels / TRPs / TOs are respectively associated with different TCI states.

[0054] Another solution is a spatial multiplexing SFN solution: one TB of PUSCH is transmitted on the same time-frequency resource by different panels on the same DMRS port or port combination respectively facing two different TRPs, and different panels / TRPs / TOs are respectively associated with different TCI states. It should be understood that, Figure 1 The solution shown exemplarily is a multi-TRP transmission in an SDM transmission manner, which transmits different data layers by different antenna ports. Similarly, for the SFN transmission solution, the same data layer can be transmitted by the same antenna port, which will not be described here.

[0055] The multi-panel-based uplink PUSCH simultaneous transmission generally supports one or more of the above solutions.

[0056] In the uplink enhancement of R18, how to support higher throughput and more reliable transmission performance through multi-panel / multi-TRP uplink simultaneous transmission is considered.

[0057] In order to support the SFN solution of multi-panel uplink simultaneous transmission based on S-DCI, the transmission solution of DMRS and PTRS also needs to be determined. For DMRS, the current main consideration is the SFN transmission solution, that is, the same DMRS port is used for transmission on different panels. For PTRS, different solutions of SFN transmission and non-SFN transmission also need to be considered.

[0058] The current protocol supports the PTRS transmission of non-codebook-based PUSCH transmission, and the same PTRS port is associated with the same group of DMRS ports corresponding to different SRS resource sets. However, the SRS resource PTRS index configuration contained in the SRI indication field corresponding to different SRS resource sets makes the actual number of corresponding PTRS ports inconsistent, which causes the actual transmitted PTRS not to be SFN transmission. Therefore, the problem of supporting SFN transmission of PTRS for NCB PUSCH needs to be solved.

[0059] In the present disclosure, a technical solution is provided, which can realize enhanced indication under SFN transmission of PTRS, so as to support CPE estimation of terminal multi-antenna panels under SFN solution of STxMP transmission in non-codebook-based configuration, so that the multi-point cooperative transmission is more effective, and the reliability and throughput of data transmission are effectively improved.

[0060] The uplink transmission control method and device provided by the present disclosure will be described in detail below with reference to the accompanying drawings.

[0061] Figure 2 A flowchart of uplink transmission control according to an embodiment of the present disclosure is shown. As shown in FIG. 1, the uplink transmission control method according to the present disclosure includes the following steps.Figure 2 As shown, the method can be performed by a UE and can include the following steps.

[0062] In the S201, the single downlink control information DCI based scheduling of the physical uplink shared channel PUSCH in the uplink multi-panel simultaneous transmission STxMP scenario receives a transmission configuration information related to a phase tracking reference signal PTRS sent by a network device, wherein the transmission configuration information includes a maximum number of PTRS ports, a sounding reference signal SRS resource indication SRI indication field, a demodulation reference signal DMRS port indication field, and a PTRS-DMRS association relationship indication field.

[0063] In this embodiment, the transmission configuration information can dynamically include two or more groups of DCI information indication fields for multi-TRP SFN transmission. Each group of information indication fields includes at least the maximum number of PTRS ports, the SRI indication field, and the PTRS-DMRS association relationship indication field, but the present disclosure is not limited thereto, and each group of information indication fields can also include other information indication fields.

[0064] In some embodiments, the TCI beam indication information in the single DCI indicates two or more beams and the transmission configuration information includes two or more SRI indication fields, wherein each SRI indication field is used to indicate one or more SRS resources carrying precoding information in a corresponding SRS resource set allocated for PUSCH transmission in a corresponding beam direction, the single DCI is used for multi-panel multi-TRP transmission, and the multi-panel multi-TRP transmission is a non-codebook-based PUSCH transmission. For PUSCH transmission in each beam direction, one SRI indication field is used to indicate one or more SRS resources selected from the SRS resource set allocated for the PUSCH transmission. For codebook-based PUSCH transmission, the corresponding SpatialFilter is selected for the PUSCH transmission by SRI indication, i.e., the PUSCH uses the spatial relationship information (TCI or Spatial Relation Info) corresponding to the SRS resource selected by the SRI as the spatial filter used for transmission. For non-codebook-based PUSCH transmission, the PUSCH precoding information calculated and recommended by the terminal is carried by multiple single-port SRS resources in an SRS resource set, each SRS resource carries the precoding information used for one layer of data, and the base station selects and indicates the precoding information by SRI based on the precoding information reported by the terminal, i.e., selects one or more SRS resources in the corresponding SRS resource set, and the terminal uses the precoding corresponding to one or more corresponding SRS resources as the precoding used for PUSCH transmission after receiving the SRI indication from the base station.

[0065] S202, for the non-codebook-based PUSCH transmission, based on the PTRS-related transmission configuration information and the preset protocol rule, determining the actual transmission parameter of the PTRS for the PUSCH transmission, and transmitting the PTRS in the SFN transmission mode on the transmission occasion TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / sets of sounding reference signal SRS resources, wherein the actual transmission parameter of the PTRS includes the actual number of PTRS ports and the DMRS ports used by the actually transmitted PTRS ports.

[0066] In an embodiment of the present disclosure, the UE can determine the actual transmission parameter of the PTRS according to the preset protocol rule based on the maximum number of PTRS ports and the association indication between the PTRS and the DMRS port, including but not limited to the actual number of PTRS ports and the DMRS port corresponding to the actually transmitted PTRS.

[0067] In an embodiment of the present disclosure, the maximum number of PTRS ports can be configured by a higher layer, for example, by RRC signaling, which is not limited in the embodiment of the present disclosure.

[0068] According to the uplink transmission control method of the embodiment of the present disclosure, in the single downlink control information DCI scheduling physical uplink shared channel PUSCH in the uplink multi-antenna panel simultaneous transmission STxMP scenario, the network scheduling multi-transmission and reception point TRP single frequency network SFN transmission mode receives the phase tracking reference signal PTRS-related transmission configuration information sent by the network device, wherein the transmission configuration information includes the maximum number of PTRS ports, the sounding reference signal SRS resource indication SRI indication field, the demodulation reference signal DMRS port indication field, and the PTRS-DMRS association indication field; and for the non-codebook-based PUSCH transmission, based on the PTRS-related transmission configuration information and the preset protocol rule, determining the actual transmission parameter of the PTRS for the PUSCH transmission, and transmitting the PTRS in the SFN transmission mode on the transmission occasion TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / sets of sounding reference signal SRS resources, wherein the actual transmission parameter of the PTRS includes the actual number of PTRS ports and the DMRS ports used by the actually transmitted PTRS ports.

[0069] Figure 3 A flowchart of uplink transmission control according to an embodiment of the present disclosure is shown. As shown in the figure, the method can be performed by a UE and can include the following steps. Figure 3

[0070] ​S301, in a single downlink control information DCI scheduling based physical uplink shared channel PUSCH in an uplink multi-antenna panel simultaneous transmission STxMP scenario, receiving a phase tracking reference signal PTRS related transmission configuration information sent by a network device, wherein the transmission configuration information includes a maximum number of PTRS ports, a sounding reference signal SRS resource indication SRI indication field, a demodulation reference signal DMRS port indication field, and a PTRS-DMRS association indication field.

[0071] In some embodiments of the present disclosure, whether to transmit PTRS in uplink is also controlled by the configuration of the high layer parameter. The UE can obtain the maximum number of PTRS ports by receiving the RRC signaling sent by the network device. For example, the RRC configures the maximum number of ports corresponding to the PTRS maxNrofPorts = 1 or 2.

[0072] If the UE is not configured with phaseTrackingRS in the high layer parameter DMRS-UplinkConfig, the UE does not transmit PTRS. If the UE is configured with the parameter UL-PTRS-present in the high layer, and the number of PTRS ports is 1 or 2, the PTRS-DMRS association indication field in the UL DCI 0_1 / 0_2 indicates that one DMRS port is associated with this PTRS port. Wherein, the maximum number of PTRS ports is configured as 'n2' by the high layer parameter PTRS-UplinkConfig maxNrofPorts. If the maximum number of indicated PTRS ports is 2, the network side divides the DMRS ports corresponding to the SRS resource into two groups, respectively, and suggests the association.

[0073] In some embodiments of the present disclosure, the transmission configuration information includes a DMRS port indication field. The DMRS field in the DCI can indicate the DMRS port information used for PUSCH transmission in each beam direction, for example, for the indicated DMRS port {0, 1} and the corresponding transmission scheme FDM or SFN transmission, the DMRS port of the PUSCH transmission corresponding to each beam direction uses port {0, 1}, that is, TRI is 2. For example, for the indicated DMRS port {0, 1} and the corresponding transmission scheme SDM transmission, the corresponding DMRS port of the PUSCH transmission in each TCI beam direction can also be determined according to the pre-defined rule. The possible port allocation is that the PUSCH transmission in the first beam direction uses DMRS port {0} and the corresponding TRI is 1, and the PUSCH transmission in the second beam direction uses DMRS port {1} and the corresponding TRI is 1.

[0074] In the present disclosure, the TO of the corresponding PUSCH associated with different antenna panels / TRPs / beam TCI states / SRS resource sets is the same as the DMRS port or port group.

[0075] In other words, for NCB PUSCH, the DMRS port indication field indicated by the SRS resource associated with different SRS resource sets is the same or different, and SRI1 / SRI2 is respectively associated with the corresponding different panel / TRP / TCI first / second SRS resource set. That is, the corresponding relationship between TPMI and SRS resource set can be that SRI1 corresponds to the first SRS resource set, or SRI1 corresponds to the second SRS resource set.

[0076] In some embodiments of the present disclosure, different SRS resource sets are associated with PUSCH transmission on multiple antenna panels, and the corresponding relationship between different SRS resource sets and SRI indication field is indicated by SRS resource set indicator indication field.

[0077] Wherein the SRS resource set indicator indication field is used to dynamically indicate STRP and MTRP transmission scheduling.

[0078] When single TRP, the first SRI field can be associated with any SRS resource, specifically, the SRS resource set indicator indication field is used for dynamic switching indication between STRP and MTRP by different code points. As shown in Table 1.

[0079] Table 1

[0080]

[0081] In other words, different SRS resource sets can be associated with PUSCH transmission on multiple panels / TRPs / beam TCI states, and the corresponding relationship between SRS resource sets and SRI field is defined by SRS resource set indicator indication field. The current R17 protocol defines that the first SRI field corresponds to the first SRS resource set, and the second SRI field corresponds to the second SRS resource set. The specific corresponding relationship of R18 can be that the first SRI field corresponds to the first SRS resource set, or the first SRI field corresponds to the second SRS resource set.

[0082] In the embodiment, the TCI beam indication information carried in the single DCI sent by the network device to the UE indicates two or more beams and the transmission configuration information includes two or more SRI indication fields, the single DCI is used for multi-antenna panel multi-TRP transmission, and the multi-antenna panel multi-TRP transmission is a non-codebook-based PUSCH transmission. The non-codebook-based PUSCH transmission in each beam direction corresponds to one SRI indication field, that is, one SRI indication field can indicate the precoding matrix of the non-codebook-based PUSCH transmission in one beam direction.

[0083] The other explanations of step S201 in the above embodiments are also applicable to step S301 in the present embodiment, and the principles are the same, which will not be repeated here.

[0084] S302, for the non-codebook-based PUSCH transmission, in the PUSCH multi-TRP SFN transmission mode, the PTRS actual transmission parameters used for PUSCH transmission determined based on the transmission configuration information and the preset protocol rules are used to send the same number of PTRS port data on the TO of the PUSCH corresponding to the different antenna panel / TRP / beam TCI state / sounding reference signal SRS resource set.

[0085] In other words, in the scheme of the present disclosure, the SRI field corresponding to the SRI field that determines the number of PTRS ports can be used to determine the correspondence between the PTRS port and the DMRS port, and applied to the PTRS transmission of two panels, that is, the corresponding PTRS is sent on the same DMRS port.

[0086] In some embodiments of the present disclosure, the PTRS actual transmission parameters include the actual number of PTRS ports and the DMRS port corresponding to the actual transmitted PTRS. Wherein, the actual number of PTRS ports is less than or equal to the maximum number of PTRS ports.

[0087] In some embodiments of the present disclosure, each PTRS port data is the same and is sent through the same one or more DMRS ports. In other words, the DMRS ports or port groups indicated by the DMRS port indication fields of the different sounding reference signal SRS resource sets corresponding to different antenna panels are the same, so as to realize multi-TRP SFN transmission.

[0088] In some optional embodiments, the method further comprises: determining, according to a preset protocol rule, the actual PTRS transmission parameter for the PUSCH transmission based on the transmission configuration information and the preset protocol rule, and transmitting the PTRS on the TOs of the PUSCHs corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource sets according to the SFN transmission mode respectively based on the actual PTRS transmission parameter, wherein the determining the actual PTRS transmission parameter comprises: in response to the SRS resource sets indicated by the different SRI indication fields containing different actual numbers of PTRS ports corresponding to the PTRS port indexes, determining the actual PTRS transmission parameter based on a maximum number of PTRS ports and an association relationship between the PTRS-DMRS ports indicated by the PTRS-DMRS association indication field according to the preset protocol rule; and transmitting the PTRS on the TOs of the PUSCHs corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource sets according to the SFN transmission mode respectively based on the actual PTRS transmission parameter.

[0089] In other words, when the actual numbers of PTRS ports corresponding to the PTRS port indexes contained in the SRS resources / SRS resource combinations indicated by SRI1 and SRI2 are N1 and N2 respectively, the preset protocol rule is applied to determine the actual number of transmitted PTRS ports N.

[0090] The preset protocol rule is described in detail below. In some optional embodiments of the present disclosure, the preset protocol rule comprises any one of the following:

[0091] In an optional manner, the actual number of PTRS ports is the number of PTRS ports corresponding to a preset SRI, the preset SRI is one of the SRIs respectively associated with the different antenna panels / TRPs / beam TCI states / SRS resource sets / TOs of the PUSCHs, and the determined actual number of PTRS ports and the DMRS ports used by the actually transmitted PTRS ports are applied to the TOs of the PUSCHs corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource sets respectively. In other words, N is determined by the number of PTRS ports corresponding to a fixed SRI field, such as the SRI1 indication field, N is equal to N1, and the determined actual number of PTRS ports and the DMRS ports used by the actually transmitted PTRS ports are applied to the different panels.

[0092] In other words, the actual number of PTRS ports determined by the above rule is N, and each PTRS port corresponds to a specific DMRS port, so that the actual number of ports transmitted on each TO of the PUSCHs is N, and the DMRS ports corresponding to each port are the same, thereby achieving SFN transmission of the PTRS.

[0093] wherein the preset SRI is one of different SRIs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets / transmission occasions of PUSCH, and a specific SRI in effect can be specified by predefinition or network configuration. It should be understood that in some optional embodiments of the present disclosure, different SRIs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets / TOs of PUSCH are different, and the present disclosure will not be described here.

[0094] In another optional manner, the actual number of PTRS ports is the minimum value of the number of PTRS ports corresponding to the SRIs corresponding to the TOs of different antenna panels / TRPs / beam TCI states / SRS resource sets / PUSCH, and the determined actual number of PTRS ports and the DMRS ports used by the actually transmitted PTRS ports are applied to the TOs of PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets respectively. In other words, N is equal to the smaller value of the number of PTRS ports corresponding to SRI1 / SRI2, that is, min{N1, N2}, and the determined actual number of PTRS ports and the DMRS ports used by the actually transmitted PTRS ports are applied to different panels. The scheme of using a smaller number of ports can reduce the signaling overhead of PTRS.

[0095] In yet another optional manner, the actual number of PTRS ports is the maximum value of the number of PTRS ports corresponding to the SRIs corresponding to the TOs of different antenna panels / TRPs / beam TCI states / SRS resource sets / PUSCH, and the determined actual number of PTRS ports and the DMRS ports used by the actually transmitted PTRS ports are applied to the TOs of PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets respectively. In other words, N is equal to the larger value of the number of PTRS ports corresponding to SRI1 / SRI2, that is, max{N1, N2}, and the determined actual number of PTRS ports and the DMRS ports used by the actually transmitted PTRS ports are applied to different panels. The scheme of using a larger number of ports can accurately control the estimation of phase noise of multiple panels.

[0096] For the problem that the index values of the PTRS port indexes corresponding to the SRS resources included in different SRS resource sets do not correspond to the same number of PTRS ports, the scheme of the present disclosure can limit the port index configuration enhancement for NCB. In some optional embodiments of the present disclosure, the preset protocol rule includes any one of the following:

[0097] In an optional manner, the PTRS port index values corresponding to all SRS resources contained in different SRS resource sets configured by RRC are not used, and by default, the PTRS port index parameters corresponding to all SRS resources in different SRS resource sets associated with different antenna panel / TRP / beam TCI states / PUSCH TOs correspond to the same PTRS port, wherein the actual number of PTRS ports is 1. In other words, in this optional solution, the ptrs-PortIndex parameters configured for different SRS resources in different SRS resource sets are ignored, for example, different SRS resources in different SRS resource sets all correspond to PTRS0. In this case, each Panel actually supports only one PTRS port, that is, the actual number of PTRS ports is 1.

[0098] In another optional manner, the values of the PTRS port index parameters corresponding to the SRS resources with at least the same SRS resource index in any SRS resource set associated with different antenna panel / TRP / beam TCI states / PUSCH TOs are the same as the values of the PTRS port index parameters corresponding to the SRS resources with the same SRS resource index in another SRS resource set. In other words, in this optional solution, the PTRS port index values of each SRS resource in different SRS resource sets can be configured to be the same, for example, the first SRS resource set contains 4 SRS resources, and the second SRS resource set contains 2 SRS resources, then at least the PTRS port index values of the first two SRS resources in the first SRS resource set are guaranteed to be the same as the PTRS port index values of the two SRS resources in the second SRS resource set.

[0099] The present disclosure does not limit other manners except the above optional manners.

[0100] The PTRS and DMRS association relationship indication will be described in detail below. First, the contents in the related protocols are described to facilitate the understanding of the PTRS and DMRS association relationship indication defined in the present disclosure.

[0101] For PDSCH / PUSCH channel, the data layer of data transmission corresponds to the DMRS port used for demodulation. The design of data channel (PDSCH / PUSCH) DMRS in the NR system mainly includes the design of front-load DMRS and additional DMRS. For low mobility scenarios, front-load DMRS can obtain channel estimation performance that meets the demodulation requirements with lower overhead, and front-load DMRS can be configured up to two OFDM symbols depending on the number of orthogonal ports used for transmission. However, the NR system considers a maximum mobile speed of 500 km / h, and in the face of such a large range of mobility, in addition to front-load DMRS, more DMRS symbols need to be inserted within the scheduling duration in medium / high speed scenarios to meet the estimation accuracy of channel time variation. The related protocols define the DMRS port allocation table for different parameter configurations of uplink, and for different DMRS types (1 or 2), symbol length, data layer number, and use or not use of transform precoding (for example, dmrs-Type = 1, maxLength = 1, rank = 1, transform precoder is disabled, which means DMRS type 1, single symbol, single stream transmission, and no transform precoding), DMRS port allocation can be based on Table 7.3.1.1.2-8 to Table 7.3.1.1.2-23, as shown in Tables 2 to 17 below, which are not described here.

[0102] Table 2 (Table 7.3.1.1.2-8: Antenna port(s), transform precoder is disabled, dmrs-Type = 1, maxLength = 1, rank = 1)

[0103] Value Number of DMRS CDM group(s)without data DMRS port(s) 0 1 0 1 1 1 2 2 0 3 2 1 4 2 2 5 2 3 6-7 Reserved Reserved

[0104] Table 3 (Table 7.3.1.1.2-9: Antenna port(s), transform precoder is disabled, dmrs-Type = 1, maxLength = 1, rank = 2)

[0105] Value Number of DMRS CDM group(s)without data DMRS port(s) 0 1 0,1 1 2 0,1 2 2 2,3 3 2 0,2 4-7 Reserved Reserved

[0106] Table 4 (Table 7.3.1.1.2-10: Antenna port(s), transform precoder is disabled, dmrs-Type = 1, maxLength = 1, rank = 3)

[0107] Value Number of DMRS CDM group(s)without data DMRS port(s) 0 2 0-2 2-7 Reserved Reserved

[0108] Table 5 (Table 7.3.1.1.2-11 : Antenna port(s), transform precoder is disabled, dmrs-Type=1, maxLength=1, rank=4)

[0109] Value Number of DMRS CDM group(s)without data DMRS port(s) 0 2 0-3 2-7 Reserved Reserved

[0110] Table 6 (Table 7.3.1.1.2-12: Antenna port(s), transform precoder is disabled, dmrs-Type=1, maxLength=2, rank=1)

[0111] Reserved Value Number of DMRS CDM group(s)without data DMRS port(s) 0 1 0 1 1 1 1 1 2 2 0 1 3 2 1 1 4 2 2 1 5 2 3 1 6 2 0 2 7 2 1 2 8 2 2 2 9 2 3 2 10 2 4 2 11 2 5 2 12 2 6 2 13 2 7 2 14-15 Number of front-load symbols Reserved Reserved

[0112] Table 7 (Table 7.3.1.1.2-13: Antenna port(s), transform precoder is disabled, dmrs-Type=1, maxLength=2, rank=2)

[0113] Reserved Value Number of DMRS CDM group(s)without data DMRS port(s) 0 1 0,1 1 1 2 0,1 1 2 2 2,3 1 3 2 0,2 1 4 2 0,1 2 5 2 2,3 2 6 2 4,5 2 7 2 6,7 2 8 2 0,4 2 9 2 2,6 2 10-15 Number of front-load symbols Reserved Reserved

[0114] Table 8 (Table 7.3.1.1.2-14: Antenna port(s), transform precoder is disabled, dmrs-Type=1, maxLength=2, rank=3)

[0115] Reserved Value Number of DMRS CDM group(s)without data DMRS port(s) 0 2 0-2 1 1 2 0,1,4 2 2 2 2,3,6 2 3-15 Number of front-load symbols Reserved Reserved

[0116] Table 9 (Table 7.3.1.1.2-15: Antenna port(s), transform precoder is disabled, dmrs-Type=1, maxLength=2, rank=4)

[0117] Reserved Value Number of DMRS CDM group(s)without data DMRS port(s) 0 2 0-3 1 1 2 0,1,4,5 2 2 2 2,3,6,7 2 3 2 0,2,4,6 2 4-15 Number of front-load symbols Reserved Reserved

[0118] Table 10 (Table 7.3.1.1.2-16: Antenna port(s), transform precoder is disabled, dmrs-Type=2, maxLength=1, rank=1)

[0119]

[0120]

[0121] Table 11 (Table 7.3.1.1.2-17: Antenna port(s), transform precoder is disabled, dmrs-Type=2, maxLength=1, rank=2)

[0122] Reserved Value Number of DMRS CDM group(s)without data 0 1 0,1 1 2 0,1 2 2 2,3 3 3 0,1 4 3 2,3 5 3 4,5 6 2 0,2 7-15 DMRS port(s) Reserved

[0123] Table 12 (Table 7.3.1.1.2-18: Antenna port(s), transform precoder is disabled, dmrs-Type=2, maxLength=1, rank=3)

[0124] Reserved Value Number of DMRS CDM group(s)without data 0 2 0-2 1 3 0-2 2 3 3-5 3-15 DMRS port(s) Reserved

[0125] Table 13 (Table 7.3.1.1.2-19: Antenna port(s), transform precoder is disabled, dmrs-Type=2, maxLength=1, rank=4)

[0126] Reserved Value Number of DMRS CDM group(s)without data 0 2 0-3 1 3 0-3 2-15 DMRS port(s) Reserved

[0127] Table 14 (Table 7.3.1.1.2-20: Antenna port(s), transform precoder is disabled, dmrs-Type=2, maxLength=2, rank=1)

[0128]

[0129]

[0130] Table 15 (Table 7.3.1.1.2-21: Antenna port(s), transform precoder is disabled, dmrs-Type=2, maxLength=2, rank=2)

[0131] Reserved Value Number of DMRS CDM group(s) without data DMRS port(s) Number of front-load symbols 0 1 0,1 1 1 2 0,1 1 2 2 2,3 1 3 3 0,1 1 4 3 2,3 1 5 3 4,5 1 6 2 0,2 1 7 3 0,1 2 8 3 2,3 2 9 3 4,5 2 10 3 6,7 2 11 3 8,9 2 12 3 10,11 2 13 1 0,1 2 14 1 6,7 2 15 2 0,1 2 16 2 2,3 2 17 2 6,7 2 18 2 8,9 2 19-31 Reserved Reserved Reserved

[0132] Table 16 (Table 7.3.1.1.2-22: Antenna port(s), transform precoder is disabled, dmrs-Type=2, maxLength=2, rank=3)

[0133] Value Number of DMRS CDM group(s) without data DMRS port(s) Number of front-load symbols 0 2 0-2 1 1 3 0-2 1 2 3 3-5 1 3 3 0,1,6 2 4 3 2,3,8 2 5 3 4,5,10 2 6-31 Reserved Reserved Reserved

[0134] Table 17 (Table 7.3.1.1.2-23: Antenna port(s), transform precoder is disabled, dmrs-Type=2, maxLength=2, rank=4)

[0135] Value Number of DMRS CDM group(s) without data DMRS port(s) Number of front-load symbols 0 2 0-3 1 1 3 0-3 1 2 3 0,1,6,7 2 3 3 2,3,8,9 2 4 3 4,5,10,11 2 5-31 Reserved Reserved Reserved

[0136] The port properties of PTRS and DMRS are related, and when there are multiple DMRS ports, it is necessary to specify which PTRS port and which DMRS port or ports are the same port parameters, that is, the association between the PTRS and DMRS ports is indicated by the PTRS-DMRS association indication field.

[0137] The number of PTRS ports is related to the number of phase noise sources, and when there are multiple independent phase noise sources, each phase noise source needs a PTRS port to perform phase estimation. Therefore, NR15 / 16 supports one downlink PTRS port and two uplink PTRS ports. Whether to transmit PTRS on the uplink can be controlled by the configuration of the high-level parameter. If the UE is not configured with phaseTrackingRS in the high-level parameter DMRS-UplinkConfig, the uplink UE does not transmit PTRS. If the UE is not configured with phaseTrackingRS in the high-level parameter DMRS-UplinkConfig, the uplink UE does not transmit PTRS. If the UE is configured with the parameter UL-PTRS-present by the high-level, and the number of PTRS ports is 1 or 2, then one DMRS port is associated with this PTRS port by the PTRS-DMRS association indication field in the UL DCI 0_1 / 0_2.

[0138] The specific association relationship is shown in the following table:

[0139] The following table 18 shows the case of single PTRS port (see the protocol Table 7.3.1.1.2-25: PTRS-DMRS association for UL PTRS port 0).

[0140] Table 18

[0141]

[0142] The PTRS-DMRS association definition corresponding to different TRP directions when the data transmission rank RANK = 2 is introduced in R17, as shown in Table 19 below (see the protocol Table 7.3.1.1.2-25A: PTRS-DMRS association for UL PTRS port 0 or for the actual UL PTRS port). Wherein, the PTRS-DMRS association in different directions is indicated by the least significant bit (LSB) and the most significant bit (MSB).

[0143] Table 19

[0144]

[0145] Table 20 below shows the case of two PTRS ports (see the protocol Table 7.3.1.1.2-26: PTRS-DMRS association for UL PTRS ports 0 and 1).

[0146] Table 20

[0147]

[0148] In some optional embodiments of the present disclosure, in response to the data transmission rank RANK being equal to 1, the PTRS-DMRS association indication field is empty, and the PTRS actually corresponds to single-port transmission on different PUSCHs and uses the indicated DMRS port for PTRS transmission. In other words, when the data transmission rank is more than one, the PTRS-DMRS association is determined when RANK = 1, and the PTRS is transmitted directly on the DMRS, which does not need to be indicated.

[0149] In some optional embodiments of the present disclosure, in response to RANK being greater than or equal to 2 and the actual number of PTRS ports being 1, the PTRS-DMRS association indication field determines the actual DMRS port corresponding to the transmitted PTRS in one of the following ways:

[0150] Indicate the associated DMRS port with 2 bits (this method can be for the case of SRI corresponding to full-coherent code word);

[0151] indicate one of the first two DMRS ports sharing the same PTRS port (this way can be for the case of SRI corresponding to partial coherence codeword);

[0152] Correspondingly, the UE can determine the DMRS port corresponding to the first actually transmitted PTRS port on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on the PTRS-DMRS association indication field, and determine the DMRS port corresponding to the second actually transmitted PTRS port on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on a default rule, and respectively transmit the PTRS.

[0153] In other words, when RANK >= 2 and when the number of ports is 1, 2 bits can be used to indicate the specific DMRS port based on Table 2 (Table 7.3.1.1.2-25); 1 bit can also be used to indicate one of the first 2 DMRS ports sharing the same PTRS port.

[0154] In some optional embodiments of the present disclosure, in response to RANK being greater than or equal to 2 and the actual number of PTRS ports used for PUSCH transmission being 2, the PTRS-DMRS association indication field determines the DMRS port corresponding to the actually transmitted PTRS port by one of the following ways:

[0155] indicate the associated DMRS port with 2 bits (this way can be for the case of SRI corresponding to full coherence codeword);

[0156] indicate one of the two DMRS ports sharing the same PTRS port with 1 bit, or the DMRS port corresponding to the same PTRS port corresponding to different SRS resource sets (this way can be for the case of SRI corresponding to partial coherence codeword).

[0157] Correspondingly, the UE can determine the DMRS port corresponding to the first actually transmitted PTRS port on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on the PTRS-DMRS association indication field, and determine the DMRS port corresponding to the second actually transmitted PTRS port on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on a default rule, and respectively transmit the PTRS.

[0158] wherein PTRS port 0, i.e. the first actually transmitted PTRS port, is the first PTRS port, and PTRS port 1, i.e. the second actually transmitted PTRS port.

[0159] wherein the DMRS port determined based on the default rule is any of the following:

[0160] the other of the first two DMRS ports;

[0161] any one of the other DMRS ports when RANK>2;

[0162] any one of the two DMRS ports sharing the same PTRS port.

[0163] In other words, when RANK>=2 and when the number of ports is 2, 2 bits can be used to indicate the specific DMRS port based on Table 4 (Table 7.3.1.1.2-26); 1 bit can also be used to only indicate the DMRS port corresponding to the corresponding PTRS port 0, from the specified one of the first 2 DMRS ports sharing the same PTRS port; the other PTRS port is transmitted according to the default rule, such as the other of the first 2 DMRS ports or the first DMRS port in the DMRS ports sharing the other PTRS port, which is not limited by the present disclosure.

[0164] In some embodiments of the present disclosure, when determining the PTRS associated DMRS port, the actual number of PTRS ports and the DMRS ports used by the actual PTRS ports are determined by the corresponding antenna panel / TRP / beam TCI state / SRS resource set / PUSCH TO corresponding SRI determined by the preset protocol rule, and at the same time, each of the same PTRS ports is transmitted on the same DMRS port on different antenna panels / TRP / beam TCI states / SRS resource sets / PUSCH TO.

[0165] In some embodiments of the present disclosure, the maximum number of PT-RS ports is configured as 'n2' by the high layer parameter PTRS-UplinkConfig-maxNrofPorts. If the indicated maximum number of PTRS ports is 2, the network side divides the DMRS ports corresponding to the SRS resource into two groups, and based on the above rules, respectively recommends the association relationship.

[0166] In embodiments of the present disclosure, due to the application of multi-point cooperative transmission technology based on downlink multi-TRP / antenna panel in the R16 research stage, transmission enhancement is carried out on PDSCH. Since data transmission includes scheduling feedback of uplink and downlink channels, in the research of URLLC, only the downlink data channel is enhanced, which cannot guarantee the overall service performance. In the research of R17, the downlink control channel PDCCH and the uplink control channel PUCCH and data channel PUSCH are further enhanced.

[0167] Phase Noise (PN) is caused by the implementation of the local oscillator, which destroys the orthogonality of each subcarrier in the OFDM system, which causes Common Phase Error (CPE) to cause the modulation constellation to rotate at a fixed angle and causes Inter-Carrier Interference (ICI) to cause the scattering of constellation points, which is more pronounced at high frequencies. Due to the greater influence of CPE, CPE compensation is mainly considered in NR. In NR, PTRS signals are designed for CPE estimation. In order to enhance signal coverage and improve signal quality, PTRS is configured by the network as a UE-specific reference signal to the terminal, and PTRS is used to track the phase noise introduced by the local oscillator in gNB and UE. PTRS can be regarded as an extension of DMRS, and they have a close relationship, such as using the same precoding, port association, orthogonal sequence generation, QCL relationship, etc.

[0168] The number of PTRS ports is related to the number of phase noise sources. When there are multiple independent phase noise sources, each phase noise source needs a PTRS port to estimate its phase.

[0169] In other words, for the non-codebook-based case, each SRS resource in the SRS resource set associated with each panel corresponds to a PTRS port index, and the actual number of PTRS ports can be determined according to the index. Since the SRS resource set contains multiple SRS resources, each SRS resource corresponds to a PTRS port, and the number of corresponding ports can be determined by the PTRS port index value, which is one or two, and the UE can transmit according to the indication. However, for the multi-panel scenario, since the SRI corresponding to different panels is different, the number of PTRS ports corresponding to the SRS resource set associated with the SRI may not be consistent, such as one corresponding to the index The number of ports is 1, and the other corresponds to the index The number of ports is 2, so the PTRS is transmitted on one panel according to 1, and the other is transmitted according to 2; If the network configures the uplink transmission in SFN mode, the DMRS ports transmitted on the two panels are the same group, that is, the PUSCH transmitted by panel 0 and the PUSCH transmitted by panel 1 use the same group of DMRS ports, which is obviously contradictory. Therefore, under SFN, all reference signals and data remain consistent. Therefore, when the SRI indication corresponding to the PTRS port is inconsistent under the existing protocol, the application of the scheme of the present disclosure can effectively solve the conflict.

[0170] In summary, based on the scheme of the present disclosure, the enhanced indication under the SFN transmission of PTRS can be realized in the case that the network device indicates that the PTRS port indexes contained in the SRS resource set indicated by different SRI indication domains actually correspond to different numbers of PTRS ports, thereby supporting the CPE estimation of the terminal multi-antenna panel under the SFN scheme in the non-codebook-based configuration, making the multi-point cooperative transmission more effective, and effectively improving the reliability and throughput of data transmission.

[0171] In addition, the application of base station multi-TRP / PANEL is mainly to improve the coverage of the cell edge and provide more balanced service quality in the service area. Data is cooperatively transmitted between multiple TRPs / PANELs in different ways. From the perspective of network form, network deployment in the manner of a large number of distributed access points plus baseband centralized processing will be more conducive to providing balanced user experience rate and significantly reducing the latency and signaling overhead caused by handover. By utilizing the cooperation between multiple TRPs or panels and the transmission / reception of channels from multiple angles of multiple beams, various shielding / blocking effects can be better overcome, the robustness of link connection can be guaranteed, and the transmission quality of URLLC service can be improved and the reliability requirement can be met.

[0172] Figure 4 A flowchart of uplink transmission control according to an embodiment of the present disclosure is shown. As shown in the figure, the method can be performed by a network device. Figure 4

[0173] For non-codebook-based uplink transmission, the CSI-RS configured by the network is generally measured in the actual system, and the terminal obtains the uplink channel information by measuring the downlink signal by utilizing the uplink-downlink reciprocity. The main processes include:

[0174] 1. The network configures the associated downlink CSI-RS for terminal downlink channel detection for non-codebook-based transmission;

[0175] 2. The terminal selects a precoding matrix by calculating the downlink channel, and simultaneously sends SRS on the configured SRS resource set in each precoded beam direction;

[0176] 3. The base station performs uplink channel detection on the SRS, the network simultaneously performs resource scheduling on the UE, and notifies the UE through downlink signaling, and simultaneously selects the beam in the precoding matrix through SRI indication.

[0177] ​The terminal determines the actual precoding and the allowed number of layers using the modified precoding matrix, and transmits the PUSCH; and the terminal determines the restriction of precoding indication according to the high-layer parameter maxRank, and the number of SRS resources indicated by the SRI is not greater than maxRank. In order to realize the modification of the actual precoding matrix used by the terminal by the network, for non-codebook-based transmission, the network needs to configure a set of SRS resources for the terminal, and Table 21 gives the definition of SRI indication corresponding to non-codebook-based PUSCH transmission when the maximum RANK is 2.

[0178] Table 21 (Table 7.3.1.1.2-29: SRI indication for non-codebook based PUSCH transmission, L max = 2)

[0179]

[0180] In the scheme proposed in the present disclosure, as shown in Figure 4 , the following steps are included.

[0181] In S401, in a single downlink control information DCI physical uplink shared channel PUSCH based on multi-antenna panel simultaneous transmission STxMP scenario, transmission configuration information related to a phase tracking reference signal PTRS is sent to a UE under network scheduling in a multi-transmission and reception point TRP single frequency network SFN transmission mode, wherein the transmission configuration information includes a maximum number of PTRS ports, a sounding reference signal SRS resource indication SRI indication field, a DMRS port indication field, and a PTRS-DMRS association indication field.

[0182] In an embodiment of the present disclosure, the network device can configure transmission configuration information for the UE. The transmission configuration information can dynamically include two or more groups of DCI information indication fields for multi-TRP SFN transmission. Each group of information indication fields includes at least the maximum number of PTRS ports, the SRI indication field, and the association indication field of the PTRS and the DMRS, but the present disclosure is not limited thereto, and each group of information indication fields can also include other information indication fields.

[0183] In some embodiments, the TCI beam indication information in the single DCI indicates two or more beams, and the transmission configuration information can include two or more SRI indication fields, wherein each SRI indication field is used to indicate one or more SRS resources carrying precoding information in the SRS resource set allocated for the PUSCH transmission in the corresponding beam direction. The single DCI is used for multi-antenna panel multi-TRP transmission, and the multi-antenna panel multi-TRP transmission is a non-codebook-based PUSCH transmission. For the PUSCH transmission in each beam direction, one SRI indication field is used to indicate one or more SRS resources selected from the SRS resource set allocated for the PUSCH transmission. For a codebook-based PUSCH transmission, a corresponding spatial filter (Spatial Filter) is selected for the PUSCH transmission by SRI indication, i.e., the PUSCH uses the spatial relationship information (TCI or Spatial Relation Info) corresponding to the SRS resource selected by the SRI as the spatial filter used for transmission. For a non-codebook-based PUSCH transmission, the PUSCH precoding information calculated and recommended by the terminal is carried by multiple single-port SRS resources in an SRS resource set, each SRS resource carries the precoding information used for one layer of data, and the base station selects and indicates the precoding information by measuring the precoding information reported by the terminal, i.e., selects one or more SRS resources in the corresponding SRS resource set, and the terminal uses the precoding corresponding to one or more corresponding SRS resources as the precoding used for PUSCH transmission after receiving the SRI indication of the base station.

[0184] S402, for a non-codebook-based PUSCH transmission, determining the PTRS actual reception parameters for the PUSCH transmission based on the transmission configuration information and a preset protocol rule, and receiving the PTRS in different antenna panel / TRP / beam TCI state / probe reference signal SRS resource set corresponding PUSCH transmission occasion TO according to SFN transmission mode respectively, wherein the PTRS actual reception parameters include actual PTRS port number and DMRS port corresponding to actual received PTRS.

[0185] In an embodiment of the present disclosure, the network device and the UE apply the protocol rule described in the present disclosure in the uplink transmission process. Based on the transmission configuration information and the preset protocol rule, the network device can determine the PTRS actual reception parameters for the PUSCH transmission, and receive the PTRS in different antenna panel / TRP / beam TCI state / probe reference signal SRS resource set corresponding PUSCH transmission occasion TO according to SFN transmission mode respectively. The parameters include but are not limited to actual PTRS port number and DMRS port corresponding to actual received PTRS.

[0186] In the embodiments of the present disclosure, the network device can configure the maximum number of PTRS ports for the UE through RRC signaling, and the embodiments of the present disclosure do not limit this.

[0187] According to the uplink transmission control method, in the single downlink control information DCI physical uplink shared channel PUSCH based on the uplink multi-antenna panel simultaneous transmission STxMP scenario, the network device sends transmission configuration information related to the phase tracking reference signal PTRS to the UE in the multi-transmission and reception point TRP single frequency network SFN transmission mode, wherein the transmission configuration information includes the maximum number of PTRS ports, the sounding reference signal SRS resource indication SRI indication field, the DMRS port indication field, and the PTRS-DMRS association relationship indication field; for the non-codebook-based PUSCH transmission, the actual reception parameters of the PTRS for the PUSCH transmission determined based on the transmission configuration information and the preset protocol rules are received in the PTRS in the transmission opportunity TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / sounding reference signal SRS resource sets according to the SFN transmission mode, wherein the actual reception parameters of the PTRS include the actual number of PTRS ports and the DMRS port corresponding to the actual reception PTRS. The scheme provided by the present disclosure can realize the enhanced indication of the SFN transmission of the PTRS, thereby supporting the CPE estimation of the terminal multi-antenna panel in the non-codebook-based configuration under the SFN scheme in the STxMP transmission, making the multi-point cooperative transmission more effective, and effectively improving the reliability and throughput of data transmission.

[0188] Figure 5 A flowchart of an uplink transmission control according to an embodiment of the present disclosure is shown. As shown in Figure 5 The method can be performed by a network device and can include the following steps.

[0189] S501, in the single downlink control information DCI physical uplink shared channel PUSCH based on the uplink multi-antenna panel simultaneous transmission STxMP scenario, the network device sends transmission configuration information related to the phase tracking reference signal PTRS to the UE in the multi-transmission and reception point TRP single frequency network SFN transmission mode, wherein the transmission configuration information includes the maximum number of PTRS ports, the sounding reference signal SRS resource indication SRI indication field, the DMRS port indication field, and the PTRS-DMRS association relationship indication field.

[0190] In some embodiments of the present disclosure, whether the uplink transmits the PTRS can be controlled by a high-layer parameter configured by the network device. The network device can send RRC signaling to the UE to obtain the maximum number of PTRS ports. For example, the RRC configures the maximum number of ports corresponding to the PTRS maxNrofPorts = 1 or 2.

[0191] If the UE is not configured with phaseTrackingRS in the higher layer parameter DMRS-UplinkConfig, the UE does not transmit PTRS. If the UE is configured with the parameter UL-PTRS-present in the higher layer and the number of PTRS ports is 1 or 2, the UE is indicated by the PTRS-DMRS association indication field in the UL DCI 0_1 / 0_2 that one DMRS port is associated with this PTRS port. Wherein the maximum number of PTRS ports is configured as 'n2' by the higher layer parameter maxNrofPorts in the parameter PTRS-UplinkConfig. If the maximum number of PTRS ports indicated is 2, the network side divides the DMRS ports corresponding to the SRS resource into two groups respectively, and suggests the association relationship respectively.

[0192] In some embodiments of the present disclosure, the transmission configuration information includes a DMRS port indication field. The DMRS port information used for PUSCH transmission in each beam direction can be indicated in the DMRS field of the DCI. For example, if the indicated DMRS port is {0, 1} and the corresponding transmission scheme is FDM or SFN transmission, the DMRS port used for PUSCH transmission in each beam direction is {0, 1}, i.e. the TRI is 2. For example, if the indicated DMRS port is {0, 1} and the corresponding transmission scheme is SDM transmission, the corresponding DMRS port of the PUSCH transmission in each TCI beam direction can also be determined according to the predefined rule. The possible port allocation is that the DMRS port used for the PUSCH transmission in the first beam direction is {0} and the corresponding TRI is 1, and the DMRS port used for the PUSCH transmission in the second beam direction is {1} and the corresponding TRI is 1.

[0193] In some embodiments of the present disclosure, the TO of the corresponding PUSCH associated with different antenna panels / TRPs / beam TCI states / SRS resource sets is the same as the DMRS port or port group of the corresponding PUSCH.

[0194] In other words, for NCB PUSCH, the DMRS port indication field indicated by the SRS resource associated with different SRS resource sets is the same or different, and SRI 1 / SRI 2 is respectively associated with the corresponding different panel / TRP / TCI first / second SRS resource set. That is, the correspondence between TPMI and SRS resource set can be that SRI 1 corresponds to the first SRS resource set, or SRI 1 corresponds to the second SRS resource set.

[0195] In some embodiments of the present disclosure, different SRS resource sets are associated with PUSCH transmission on multiple antenna panels, and the correspondence between different SRS resource sets and SRI indication fields is indicated by SRS resource set indicator indication fields.

[0196] The SRS resource set indicator indication field is used to dynamically indicate STRP and MTRP transmission scheduling.

[0197] In single-TRP mode, the first SRI field can be associated with any SRS resource, and specifically, the SRS resource set indicator indication field is used to dynamically switch between STRP and MTRP by different code points. As described above in Table 1, which will not be repeated here.

[0198] In other words, different SRS resource sets can be associated with PUSCH transmission on multiple panels / TRPs / beam TCI states, and the correspondence between SRS resource sets and SRI fields is defined by SRS resource set indicator indication fields. The R17 currently defines that the first SRI field corresponds to the first SRS resource set, and the second SRI field corresponds to the second SRS resource set. The specific correspondence in R18 can be that the first SRI field corresponds to the first SRS resource set, or the first SRI field corresponds to the second SRS resource set.

[0199] In the present embodiment, the TCI beam indication information carried in the single DCI sent by the network device to the UE indicates two or more beams and the transmission configuration information includes two or more SRI indication fields, and the single DCI is used for multi-antenna panel multi-TRP transmission, and the multi-antenna panel multi-TRP transmission is codebook-based PUSCH transmission. The non-codebook-based PUSCH transmission in each beam direction corresponds to one SRI indication field, that is, one SRI indication field can indicate the precoding matrix of the non-codebook-based PUSCH transmission in one beam direction.

[0200] The other explanations of step S401 in the above embodiments are also applicable to step S501 in the present embodiment, and the principles are the same, which will not be repeated here.

[0201] S502, for non-codebook-based PUSCH transmission, in the PUSCH multi-TRP SFN transmission mode, the same number of PTRS port data is received on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets, wherein each PTRS port data is the same and is received through the same one or more DMRS ports.

[0202] In other words, in the scheme of the present disclosure, the PTRS port number determined by the SRI field corresponding to the PTRS port and DMRS port correspondence relationship can be used, and applied to the PTRS transmission of two panels, that is, the corresponding PTRS is transmitted on the same DMRS port. Accordingly, the network device receives the corresponding PTRS on the same DMRS port.

[0203] In some embodiments of the present disclosure, the actual PTRS reception parameter includes the actual number of PTRS ports and the DMRS port corresponding to the actual received PTRS. Wherein, the actual number of PTRS ports is less than or equal to the maximum number of PTRS ports.

[0204] In some embodiments of the present disclosure, each PTRS port data is the same and is received through the same one or more DMRS ports. In other words, the DMRS ports or port groups indicated by the DMRS port indication field of the different SRS resource sets corresponding to different antenna panels are the same, so as to realize multi-TRP SFN transmission, and accordingly realize the PTRS reception of the network device.

[0205] In some optional embodiments, the PTRS actual reception parameter determined based on the transmission configuration information and the preset protocol rule for PUSCH transmission, the reception of the PTRS on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets in the SFN transmission mode respectively includes: in response to the actual number of PTRS ports corresponding to the PTRS port index contained in the SRS resource set indicated by the different SRI indication field being different, the PTRS actual reception parameter determined based on the preset protocol rule is received on the transmission opportunity TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets in the SFN transmission mode respectively.

[0206] In other words, when the actual number of PTRS ports corresponding to the PTRS port index contained in the SRS resource / SRS resource combination indicated by SRI1 is N1, and the actual number of PTRS ports corresponding to the port index contained in the SRS resource / SRS resource combination indicated by SRI2 is N2, the preset protocol rule is applied to determine the actual number of transmitted PTRS ports N.

[0207] In an alternative, the actual number of PTRS ports is the number of PTRS ports corresponding to a pre-defined SRI, which is one of the SRIs associated with the different antenna panels / TRPs / beam TCI states / SRS resource sets / TOs of PUSCH respectively, and the determined actual number of PTRS ports and the DMRS ports used by the actually transmitted PTRS ports are applied to the TOs of PUSCH corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource sets respectively. In other words, N is determined by the number of PTRS ports corresponding to a fixed SRI field, such as SRI 1 field, and N equals N1, and the determined actual number of PTRS ports and the DMRS ports used by the actually transmitted PTRS ports are applied to the different panels.

[0208] wherein the pre-defined TPMI SRIs are different TPMI SRIs associated with the different antenna panels / TRPs / beam TCI states / SRS resource sets / TOs of PUSCH respectively, and the actual number of PTRS ports is the minimum value of the number of PTRS ports corresponding to the different TPMI SRIs, and the determined actual number of PTRS ports and the DMRS ports used by the actually transmitted PTRS ports are applied to the TOs of PUSCH corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource sets respectively. In other words, N equals the smaller value of the number of PTRS ports corresponding to SRI 1 / SRI 2, i.e., min{N1, N2}, and the determined actual number of PTRS ports and the DMRS ports used by the actually transmitted PTRS ports are applied to the different panels.

[0209] In yet another alternative, the actual number of PTRS ports is the maximum of the number of PTRS ports corresponding to the respective SRI pairs associated with different antenna panels / TRPs / beam TCI states / SRS resource sets / TOs of PUSCH, and the determined actual number of PTRS ports and the DMRS port used by the actual transmitted PTRS ports are applied to the TOs of PUSCH corresponding to the respective SRS resource sets of different antenna panels / TRPs / beam TCI states / SRS resource sets. In other words, N is equal to the larger value of the number of PTRS ports corresponding to SRI 1 / SRI 2, i.e., max{N1, N2}, and the determined actual number of PTRS ports and the DMRS port used by the actual transmitted PTRS ports are applied to the different panels.

[0210] For the problem that the actual number of PTRS ports corresponding to the index values of the PTRS port indexes corresponding to the SRS resources included in different SRS resource sets is inconsistent, the scheme of the present disclosure can limit the port index configuration enhancement for NCB.

[0211] In some alternative embodiments of the present disclosure, the preset protocol rule includes any one of the following:

[0212] In an alternative, the PTRS port index values corresponding to all SRS resources included in different SRS resource sets configured by RRC are not used, and by default, the PTRS port index parameters corresponding to all SRS resources in the SRS resource sets associated with different antenna panels / TRPs / beam TCI states / TOs of PUSCH all correspond to the same PTRS port, wherein the actual number of PTRS ports is 1. In other words, in this alternative, the ptrs-PortIndex parameters configured for different SRS resources in different SRS resource sets are ignored, for example, different SRS resources in different SRS resource sets all correspond to PTRS 0. In this case, each panel actually only supports one PTRS port, i.e., the actual number of PTRS ports is 1.

[0213] In another alternative, the value of the PTRS port index parameter corresponding to at least the SRS resource with the same SRS resource index in any SRS resource set associated with different antenna panels / TRPs / TCI states / PUSCH TOs is the same as the value of the PTRS port index parameter corresponding to the SRS resource with the same SRS resource index in another SRS resource set. In other words, in this alternative, the PTRS port index value of each SRS resource in different SRS resource sets can be configured to be the same, for example, the first SRS resource set contains 4 SRS resources, and the second SRS resource set contains 2 SRS resources, at least the PTRS port index values of the first two SRS resources in the first SRS resource set are guaranteed to be the same as the PTRS port index values of the two SRS resources in the second SRS resource set.

[0214] The present disclosure does not limit other manners other than the above alternatives.

[0215] The PTRS and DMRS association indication will be described in detail below. First, the contents in the related protocols will be described to facilitate understanding of the PTRS and DMRS association indication defined in the present disclosure.

[0216] For PDSCH / PUSCH channels, the data layer of data transmission corresponds to the DMRS port used for demodulation. The data channel (PDSCH / PUSCH) DMRS design in the NR system mainly includes the design of front-load DMRS and additional DMRS. For low mobility scenarios, front-load DMRS can obtain channel estimation performance that meets the demodulation requirements with lower overhead, which depends on the number of orthogonal ports used for transmission, and front-load DMRS can be configured for up to two OFDM symbols. However, the NR system considers a maximum mobile speed of 500 km / h, and in the face of such a large range of mobility, in addition to front-load DMRS, more DMRS symbols need to be inserted within the scheduling duration in medium / high speed scenarios to meet the estimation accuracy of channel time variation. The related protocols define a DMRS port allocation table for different parameter configurations of uplink, and for different DMRS types (1 or 2), symbol length, data layer number, and use or non-use of transform precoding (for example, dmrs-Type = 1, maxLength = 1, rank = 1, and transform precoder is disabled, which means DMRS type 1, single symbol, single stream transmission, and non-use of transform precoding), DMRS port allocation can be based on Table 7.3.1.1.2-8 to Table 7.3.1.1.2-23, as shown in Tables 2 to 17 above, which will not be described again here.

[0217] The port properties of PTRS and DMRS are related, and when there are multiple DMRS ports, it is necessary to specify which PTRS port and which DMRS port or ports are the same port parameters, that is, the association between the PTRS and DMRS ports is indicated by the PTRS-DMRS association indication field.

[0218] The number of PTRS ports is related to the number of phase noise sources, and when there are multiple independent phase noise sources, each phase noise source needs a PTRS port for phase estimation. Therefore, NR15 / 16 supports one downlink PTRS port and two uplink PTRS ports. Whether to transmit PTRS on the uplink can be controlled by the configuration of the high-level parameter. If the UE is not configured with phaseTrackingRS in the high-level parameter DMRS-UplinkConfig, the uplink UE does not transmit PTRS. If the UE is not configured with phaseTrackingRS in the high-level parameter DMRS-UplinkConfig, the uplink UE does not transmit PTRS. If the UE is configured with the parameter UL-PTRS-present by the high-level parameter, and the number of PTRS ports is 1 or 2, then one DMRS port is associated with this PTRS port by the PTRS-DMRS association indication field in the UL DCI0_1 / 0_2.

[0219] The specific association relationship is shown in Tables 18 to 20 above, which will not be repeated here.

[0220] In some optional embodiments of the present disclosure, in response to the data transmission rank RANK being equal to 1, the PTRS-DMRS association indication field is empty, and the PTRS actually corresponds to single-port reception and uses the indicated DMRS port for PTRS reception on the TO of different PUSCHs. In other words, when the data layer number of DMRS in transmission is more than one, the association between PTRS and DMRS is determined when RANK = 1, and PTRS is directly transmitted on DRMS, which does not need to be indicated.

[0221] In some optional embodiments of the present disclosure, in response to RANK being greater than or equal to 2 and the actual number of PTRS ports being 1, the PTRS-DMRS association indication field determines the actual DMRS port corresponding to the transmitted PTRS in one of the following ways:

[0222] Indicate the associated DMRS port with 2 bits (this method can be used for the case of SRI corresponding to full-coherent code words);

[0223] indicate one of the first two DMRS ports sharing the same PTRS port (this way can be for the case of SRI corresponding to partial coherence codeword);

[0224] Correspondingly, the UE can determine the DMRS port used by the actual receiving PTRS port based on the PTRS-DMRS association indication field, and receive the PTRS using the DMRS port respectively on the TO of different PUSCHs.

[0225] In other words, when RANK >= 2 and when the number of ports is 1, 2 bits can be used to indicate the specific DMRS port based on Table 2 (Table 7.3.1.1.2-25); 1 bit can also be used to indicate one of the first 2 DMRS ports sharing the same PTRS port.

[0226] In some optional embodiments of the present disclosure, in response to RANK being greater than or equal to 2 and the actual number of PTRS ports used for PUSCH transmission being 2, the PTRS-DMRS association indication field determines the DMRS port corresponding to the actual transmitting PTRS in one of the following ways:

[0227] indicate the associated DMRS port with 2 bits (this way can be for the case of SRI corresponding to full coherence codeword);

[0228] indicate one of the two DMRS ports sharing the same PTRS port with 1 bit, or the DMRS port corresponding to the same PTRS port corresponding to different SRS resource sets (this way can be for the case of SRI corresponding to partial coherence codeword).

[0229] Correspondingly, the UE can determine the DMRS port corresponding to the first actual receiving PTRS port on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on the PTRS-DMRS association indication field, determine the DMRS port corresponding to the second actual receiving PTRS port on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on the default rule, and receive the PTRS respectively.

[0230] wherein PTRS port 0, the first actual transmitting PTRS port, PTRS port 1, the second actual transmitting PTRS port.

[0231] wherein the DMRS port determined based on the default rule is any of the following:

[0232] the other of the first two DMRS ports;

[0233] any one of the other DMRS ports when RANK>2;

[0234] any one of the two DMRS ports sharing the same PTRS port.

[0235] In other words, when RANK>=2 and when the number of ports is 2, 2 bits can be used to indicate the specific DMRS port based on Table 4 (Table 7.3.1.1.2-26); 1 bit can also be used to only indicate the DMRS port corresponding to the corresponding PTRS port 0, from the specified one of the first 2 DMRS ports sharing the same PTRS port; the other PTRS port is transmitted according to the default rule, such as the other of the first 2 DMRS ports or the first DMRS port in the DMRS ports sharing the other PTRS port, which is not limited by the present disclosure.

[0236] In some embodiments of the present disclosure, when determining the PTRS associated DMRS port, the actual number of PTRS ports and the DMRS port used by the actual receiving PTRS port are determined by the corresponding antenna panel / TRP / beam TCI state / SRS resource set / PUSCH TO corresponding SRI through the preset protocol rule, and at the same time, the same PTRS port is respectively received on the same DMRS port on different antenna panels / TRP / beam TCI states / SRS resource sets / PUSCH TO.

[0237] In some embodiments of the present disclosure, the maximum number of PT-RS ports is configured as 'n2' by the high layer parameter PTRS-UplinkConfig-maxNrofPorts. If the indicated maximum number of PTRS ports is 2, the network side divides the DMRS port corresponding to the SRS resource into two groups, and based on the above rules, respectively suggests the association relationship.

[0238] In embodiments of the present disclosure, due to the application of multi-point cooperation transmission technology between downlink multi-TRP / antenna panels in the R16 research stage, transmission enhancement is carried out on PDSCH. Since data transmission includes scheduling feedback of uplink and downlink channels, in the research of URLLC, only enhancing the downlink data channel cannot guarantee the overall service performance. In the research of R17, the downlink control channel PDCCH and the uplink control channel PUCCH and data channel PUSCH are further enhanced.

[0239] Phase Noise (PN) is caused by the implementation of the local oscillator, which destroys the orthogonality of each subcarrier in the OFDM system, which causes Common Phase Error (CPE) to cause the modulation constellation to rotate at a fixed angle and causes Inter-Carrier Interference (ICI) to cause the scattering of constellation points, which is more pronounced at high frequencies. Due to the greater influence of CPE, CPE compensation is mainly considered in NR. In NR, PTRS signals are designed for CPE estimation. In order to enhance signal coverage and improve signal quality, PTRS is configured by the network as a UE-specific reference signal to the terminal, and PTRS is used to track the phase noise introduced by the local oscillator in gNB and UE. PTRS can be regarded as an extension of DMRS, and they have a close relationship, such as using the same precoding, port association, orthogonal sequence generation, QCL relationship, etc.

[0240] The number of PTRS ports is related to the number of phase noise sources. When there are multiple independent phase noise sources, each phase noise source needs a PTRS port to estimate its phase.

[0241] In other words, for the non-codebook-based case, each SRS resource in the SRS resource set associated with each panel corresponds to a PTRS port index, and the actual number of PTRS ports can be determined according to the index. Since the SRS resource set contains multiple SRS resources, each SRS resource corresponds to a PTRS port, and the number of corresponding ports can be determined by the PTRS port index value, which is one or two, and the UE can transmit according to the indication. However, for the multi-panel scenario, since the SRI corresponding to different panels is different, the number of PTRS ports corresponding to the SRS resource set associated with the SRI may not be consistent, such as one corresponding to the index The number of ports is 1, and the other corresponds to the index The number of ports is 2, so the PTRS is transmitted on one panel according to 1, and the other is transmitted according to 2; If the network configures the uplink transmission in SFN mode, the DMRS ports transmitted on the two panels are the same group, that is, the PUSCH transmitted by panel 0 and the PUSCH transmitted by panel 1 use the same group of DMRS ports, which is obviously contradictory. Therefore, under SFN, all reference signals and data remain consistent. Therefore, when the SRI indication corresponding to the PTRS port is inconsistent under the existing protocol, the application of the scheme of the present disclosure can effectively solve the conflict.

[0242] In conclusion, based on the scheme of the present disclosure, the enhanced indication under the SFN transmission of PTRS can be realized in the case that the network device indicates that the PTRS port indexes contained in the SRS resource set indicated by different SRI indication domains actually correspond to different numbers of PTRS ports, thereby supporting the CPE estimation of the terminal multi-antenna panel under the SFN scheme in the non-codebook-based configuration, making the multi-point cooperative transmission more effective, and effectively improving the reliability and throughput of data transmission.

[0243] In addition, the application of base station multi-TRP / PANEL is mainly to improve the coverage of the cell edge and provide more balanced service quality in the service area. Data is cooperatively transmitted between multiple TRPs / PANELs in different ways. From the perspective of network morphology, network deployment in the manner of a large number of distributed access points plus baseband centralized processing will be more conducive to providing balanced user experience rates and significantly reducing the latency and signaling overhead caused by handover. By utilizing the cooperation between multiple TRPs or panels and the transmission / reception of channels from multiple beams at multiple angles, various shadowing / blocking effects can be better overcome, the robustness of link connection can be guaranteed, and the transmission quality can be improved and the reliability requirement can be met for URLLC services.

[0244] In the embodiments of the present disclosure, the method provided by the embodiments of the present disclosure is introduced from the perspective of the UE and the network device respectively. In order to realize the functions in the method provided by the embodiments of the present disclosure, the network device can include hardware structures, software modules, and realize the above functions in the form of hardware structures, software modules, or hardware structures plus software modules. Some of the above functions can be executed in the form of hardware structures, software modules, or hardware structures plus software modules.

[0245] Corresponding to the uplink transmission control provided by the above several embodiments, the present disclosure also provides an uplink transmission control device. Since the uplink transmission control device provided by the embodiments of the present disclosure corresponds to the uplink transmission control provided by the above several embodiments, the implementation mode of the uplink transmission control is also applicable to the uplink transmission control device provided by the present embodiment. In the present embodiment, it will not be described in detail.

[0246] Figure 6 A structural schematic diagram of an uplink transmission control device 600 provided by the embodiments of the present disclosure is shown in the figure. The uplink transmission control device 600 can be configured in a network device.

[0247] As shown in the figure, the device 600 can include a transceiver module 610. Figure 6

[0248] ​The transceiver module 610 is configured to receive transmission configuration information related to a phase tracking reference signal (PTRS) sent by a network device in a single downlink control information (DCI) scheduling physical uplink shared channel (PUSCH) in a simultaneous transmission and multiple panel (STxMP) scenario, wherein the transmission configuration information includes a maximum number of PTRS ports, a sounding reference signal (SRS) resource indication (SRI) indication field, a demodulation reference signal (DMRS) port indication field, and a PTRS-DMRS association indication field; and for non-codebook-based PUSCH transmission, determine actual PTRS transmission parameters for PUSCH transmission based on the transmission configuration information related to the PTRS and preset protocol rules, and perform PTRS transmission in a single frequency network (SFN) transmission manner at a transmission occasion (TO) of PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets, wherein the actual PTRS transmission parameters include an actual number of PTRS ports and DMRS ports used for actual PTRS port transmission.

[0249] The uplink transmission control device according to the embodiments of the present disclosure can receive transmission configuration information related to a phase tracking reference signal (PTRS) sent by a network device in a single downlink control information (DCI) scheduling physical uplink shared channel (PUSCH) in a simultaneous transmission and multiple panel (STxMP) scenario, wherein the transmission configuration information includes a maximum number of PTRS ports, a sounding reference signal (SRS) resource indication (SRI) indication field, a demodulation reference signal (DMRS) port indication field, and a PTRS-DMRS association indication field; and for non-codebook-based PUSCH transmission, determine actual PTRS transmission parameters for PUSCH transmission based on the transmission configuration information related to the PTRS and preset protocol rules, and perform PTRS transmission in a single frequency network (SFN) transmission manner at a transmission occasion (TO) of PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets, wherein the actual PTRS transmission parameters include an actual number of PTRS ports and DMRS ports used for actual PTRS port transmission. The scheme provided by the present disclosure can realize enhanced indication of PTRS in SFN transmission, thereby supporting CPE estimation of a terminal multi-antenna panel in a non-codebook-based configuration under an SFN scheme in an STxMP transmission, making multi-point cooperative transmission more effective, and effectively improving the reliability and throughput of data transmission.

[0250] In some embodiments, the DMRS ports or port groups corresponding to the TO of the PUSCH associated with different antenna panels / TRPs / beam TCI states / SRS resource sets are the same.

[0251] In some embodiments, the transceiver module 610 is specifically configured to: in the PUSCH multi-TRP SFN transmission mode, transmit the same number of PTRS port data on the TOs of the PUSCHs corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource set combinations, wherein each of the PTRS port data is the same and is transmitted through the same one or more DMRS ports.

[0252] In some embodiments, the transceiver module 610 is specifically configured to: in response to the PTRS port indexes contained in the SRS resource sets indicated by the different SRI indication fields actually corresponding to different numbers of PTRS ports, based on the maximum number of PTRS ports and the association relationship between the PTRS-DMRS ports indicated by the PTRS-DMRS association relationship indication field, determining the actual transmission parameters of the PTRS according to a preset protocol rule; and based on the actual transmission parameters of the PTRS, transmitting the PTRS on the TOs of the PUSCHs corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource set combinations in the SFN transmission mode respectively.

[0253] In some embodiments, the preset protocol rule includes any one of the following: the actual number of PTRS ports is the number of PTRS ports corresponding to a preset SRI, the preset SRI is one of the SRIs respectively associated with the different antenna panels / TRPs / beam TCI states / SRS resource set / PUSCH TOs, and the determined actual number of PTRS ports and the DMRS ports used by the actually transmitted PTRS ports are applied to the TOs of the PUSCHs corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource set combinations respectively; the actual number of PTRS ports is the minimum value of the numbers of PTRS ports corresponding to the SRIs respectively associated with the different antenna panels / TRPs / beam TCI states / SRS resource set / PUSCH TOs, and the determined actual number of PTRS ports and the DMRS ports used by the actually transmitted PTRS ports are applied to the TOs of the PUSCHs corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource set combinations respectively; the actual number of PTRS ports is the maximum value of the numbers of PTRS ports corresponding to the SRIs respectively associated with the different antenna panels / TRPs / beam TCI states / SRS resource set / PUSCH TOs, and the determined actual number of PTRS ports and the DMRS ports used by the actually transmitted PTRS ports are applied to the TOs of the PUSCHs corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource set combinations respectively.

[0254] In some embodiments, the preset protocol rule includes any one of the following: no use of PTRS port index values corresponding to all SRS resources contained in different SRS resource sets configured by RRC, all PTRS port index parameters corresponding to all SRS resources in different SRS resource sets associated with different antenna panel / TRP / beam TCI states / PUSCH TOs correspond to the same PTRS port, wherein the actual number of PTRS ports is 1; the values of the PTRS port index parameters corresponding to the SRS resources with the same SRS resource index in any SRS resource set associated with different antenna panel / TRP / beam TCI states / PUSCH TOs are the same as the values of the PTRS port index parameters corresponding to the SRS resources with the same SRS resource index in another SRS resource set.

[0255] In some embodiments, the transceiver module 610 is further configured to receive RRC signaling sent by the network device, wherein the RRC signaling includes a maximum number of PTRS ports, and the actual number of PTRS ports is less than or equal to the maximum number of PTRS ports.

[0256] In some embodiments, in response to the data transmission rank RANK being equal to 1 and the PTRS-DMRS association relationship indication field being empty, the PTRS actually corresponds to single-port transmission on different PUSCH TOs and uses the indicated DMRS port for PTRS transmission.

[0257] In some embodiments, in response to RANK being greater than or equal to 2 and the actual number of PTRS ports being 1, the PTRS-DMRS association relationship indication field determines the DMRS port used by the actually transmitted PTRS port by one of the following methods: indicating the associated DMRS port with 2 bits; indicating one of the first two DMRS ports sharing the same PTRS port with 1 bit; wherein the transmission of the PTRS on the TOs of the PUSCH corresponding to different antenna panel / TRP / beam TCI states / SRS resource sets in the SFN transmission mode respectively includes: determining the DMRS port used by the actually transmitted PTRS port based on the PTRS-DMRS association relationship indication field, and transmitting the PTRS using the DMRS port on the TOs of the different PUSCHs respectively.

[0258] In some embodiments, in response to RANK being greater than or equal to 2 and the actual number of PTRS ports being 2, the PTRS-DMRS association indication field determines the DMRS port corresponding to the actually transmitted PTRS port by one of the following ways: indicating the associated DMRS port with 2 bits; indicating only one of the two DMRS ports sharing the same PTRS port with 1 bit, or the DMRS port corresponding to the same PTRS port corresponding to different SRS resource sets; wherein the transmission of the PTRS on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets in the SFN transmission mode comprises: determining the DMRS port corresponding to the first actually transmitted PTRS port on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on the PTRS-DMRS association indication field, determining the DMRS port corresponding to the second actually transmitted PTRS port on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on the default rule, and transmitting the PTRS respectively.

[0259] In some embodiments, the DMRS port determined based on the default transmission rule is any of the following: the other of the first two DMRS ports; any of the other DMRS ports when RANK>2; any of the two DMRS ports sharing the same PTRS port.

[0260] In some embodiments of the present disclosure, when determining the DMRS port associated with the PTRS, the actual number of PTRS ports and the DMRS port used by the actually transmitted PTRS port are determined by the corresponding SRI of the respective antenna panel / TRP / beam TCI state / SRS resource set / PUSCH TO through the preset protocol rule, and at the same time, the same PTRS port is transmitted on the same DMRS port on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets.

[0261] In some embodiments, different SRS resource sets are associated with PUSCH transmission on multiple antenna panels, and the correspondence between different SRS resource sets and SRI indication fields is indicated by the SRS resource set indication indication field.

[0262] In summary, the uplink transmission control device disclosed herein can address the issue of different actual PTRS port numbers corresponding to the PTRS port indices contained in the SRS resource sets indicated by different SRI indication fields of the network device. This enables enhanced indication under SFN transmission of PTRS, thereby supporting CPE estimation for multi-antenna panels of terminals in STxMP transmission under non-codebook-based configurations. This makes multi-point cooperative transmission more effective, significantly improving data transmission reliability and throughput. Furthermore, the application of multiple TRPs / PANELs in base stations primarily aims to improve coverage at cell edges and provide a more balanced quality of service within the service area, using different methods to collaboratively transmit data among multiple TRPs / PANELs. From a network architecture perspective, deploying the network with a large number of distributed access points and centralized baseband processing is more conducive to providing a balanced user experience rate and significantly reducing latency and signaling overhead caused by handover. Utilizing cooperation between multiple TRPs or panels to transmit / receive channels from multiple angles and multiple beams can better overcome various obstruction / blocking effects, ensuring the robustness of link connections and making it suitable for URLLC services to improve transmission quality and meet reliability requirements.

[0263] Figure 7 This is a schematic diagram of an uplink transmission control device 700 provided in an embodiment of the present disclosure. The uplink transmission control device 700 can be configured in a network device.

[0264] like Figure 7 As shown, the device 700 may include a transceiver module 710.

[0265] The transceiver module 701 is used to send transmission configuration information related to the Phase Tracking Reference Signal (PTRS) to the UE in the STxMP scenario where multiple uplink antenna panels transmit the STRS simultaneously. This is based on a single downlink control information DCI physical uplink shared channel (PUSCH) and the network is scheduled as a multi-transmitter and receiver point (TRP) single-frequency network (SFN) transmission mode. The transmission configuration information includes the maximum number of PTRS ports, the Sounding Reference Signal (SRS) Resource Indicator (SRI) field, the DMRS port indication field, and the PTRS-DMRS association indication field. For non-codebook-based PUSCH transmission, the actual PTRS reception parameters for PUSCH transmission are determined based on the transmission configuration information and preset protocol rules. PTRS is received at different transmission times (TO) of PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets, respectively, according to the SFN transmission mode. The actual PTRS reception parameters include the actual number of PTRS ports and the DMRS port corresponding to the actual received PTRS.

[0266] According to the uplink transmission control device provided in the embodiments of the present disclosure, in the single downlink control information DCI physical uplink shared channel PUSCH based on the single downlink control information DCI physical uplink shared channel PUSCH in the uplink multi-antenna panel simultaneous transmission STxMP scenario, the transmission configuration information related to the phase tracking reference signal PTRS is sent to the UE in the network scheduling multi-transmission and reception point TRP single frequency network SFN transmission mode, wherein the transmission configuration information includes the maximum number of PTRS ports, the sounding reference signal SRS resource indication SRI indication field, the DMRS port indication field, and the PTRS-DMRS association relationship indication field; and for the non-codebook-based PUSCH transmission, the actual reception parameters of the PTRS for the PUSCH transmission are determined based on the transmission configuration information and the preset protocol rules, and the reception of the PTRS is performed on the transmission occasions TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / sounding reference signal SRS resource sets in the SFN transmission mode respectively, wherein the actual reception parameters of the PTRS include the actual number of PTRS ports and the DMRS ports corresponding to the actual reception of the PTRS. The scheme provided in the present disclosure can realize the enhanced indication of the SFN transmission of the PTRS, thereby supporting the CPE estimation of the terminal multi-antenna panel in the SFN scheme based on the non-codebook-based configuration in the STxMP transmission, making the multi-point cooperative transmission more effective, and effectively improving the reliability and throughput of data transmission.

[0267] In some embodiments, the DMRS ports or port groups corresponding to the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets are associated with each other.

[0268] In some embodiments, the transceiver module 701 is configured to receive the same number of PTRS port data on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / sounding reference signal SRS resource sets in the PUSCH multi-TRP SFN transmission mode, wherein each PTRS port data is the same and is received through the same one or more DMRS ports.

[0269] In some embodiments, the transceiver module 701 is specifically configured to, in response to the PTRS port indexes contained in the SRS resource sets indicated by different SRI indication fields actually corresponding to different numbers of PTRS ports, determine the actual reception parameters of the PTRS based on the maximum number of PTRS ports and the association relationship between the PTRS-DMRS ports indicated by the PTRS-DMRS association relationship indication field according to the preset protocol rules; and receive the PTRS on the TO of the PUSCH corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets in the SFN transmission mode respectively based on the actual transmission parameters of the PTRS.

[0270] In some embodiments, the preset protocol rule comprises any one of the following: the actual number of PTRS ports is the number of PTRS ports corresponding to the preset SRI, the preset SRI is one of the SRIs respectively associated with different antenna panels / TRPs / beam TCI states / SRS resource sets / TOs of PUSCH, and the determined actual number of PTRS ports and the DMRS port used by the actually transmitted PTRS are simultaneously applied to the TOs of PUSCH corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource sets respectively; the actual number of PTRS ports is the minimum value of the number of PTRS ports corresponding to the SRIs respectively associated with different antenna panels / TRPs / beam TCI states / SRS resource sets / TOs of PUSCH, and the determined actual number of PTRS ports and the DMRS port used by the actually transmitted PTRS are simultaneously applied to the TOs of PUSCH corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource sets respectively; the actual number of PTRS ports is the maximum value of the number of PTRS ports corresponding to the SRIs respectively associated with different antenna panels / TRPs / beam TCI states / SRS resource sets / TOs of PUSCH, and the determined actual number of PTRS ports and the DMRS port used by the actually transmitted PTRS are simultaneously applied to the TOs of PUSCH corresponding to the different antenna panels / TRPs / beam TCI states / SRS resource sets respectively.

[0271] In some embodiments, the preset protocol rule comprises any one of the following: the PTRS port index values corresponding to all SRS resources contained in different SRS resource sets configured by RRC are not used, by default, the PTRS port index parameters corresponding to all SRS resources in the SRS resource sets associated with different antenna panels / TRPs / beam TCI states / TOs of PUSCH all correspond to the same PTRS port, wherein the actual number of PTRS ports is 1; the values of the PTRS port index parameters corresponding to the SRS resources with the same SRS resource index in any SRS resource set associated with different antenna panels / TRPs / beam TCI states / TOs of PUSCH are the same as the values of the PTRS port index parameters corresponding to the SRS resources with the same SRS resource index in another SRS resource set.

[0272] In some embodiments, the transceiver module 701 is further configured to: send RRC signaling to the UE, wherein the RRC signaling comprises a maximum number of PTRS ports, and the actual number of PTRS ports is less than or equal to the maximum number of ports.

[0273] In some embodiments, in response to the data transmission rank RANK being equal to 1, the PTRS-DMRS association indication field being empty, and the PTRS actually corresponding to single port reception and using the indicated DMRS port for PTRS reception on the TOs of different PUSCHs respectively.

[0274] In some embodiments, in response to the RANK being greater than or equal to 2 and the actual number of PTRS ports being 1, the PTRS-DMRS association indication field determines the DMRS port actually used by the received PTRS port in one of the following ways: indicating the associated DMRS port with 2 bits; indicating one of the first two DMRS ports sharing the same PTRS port with 1 bit; wherein the receiving the PTRS on the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets respectively according to the SFN transmission mode comprises: determining the DMRS port actually used by the received PTRS port based on the PTRS-DMRS association indication field, and receiving the PTRS using the DMRS port on the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets respectively.

[0275] In some embodiments, in response to the RANK being greater than or equal to 2 and the actual number of PTRS ports being 2, the PTRS-DMRS association indication field determines the DMRS port corresponding to the received PTRS in one of the following ways: indicating the associated DMRS port with 2 bits; indicating only one of the two DMRS ports sharing the same PTRS port or the DMRS port corresponding to the same PTRS port corresponding to different SRS resource sets with 1 bit; wherein the receiving the PTRS on the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets respectively according to the SFN transmission mode comprises: determining the DMRS port corresponding to the first received PTRS port on the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on the PTRS-DMRS association indication field, determining the DMRS port corresponding to the second received PTRS port on the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets based on a default rule, and receiving the PTRS respectively.

[0276] In some embodiments, the DMRS port determined based on the default protocol rule is any of the following: the other of the first two DMRS ports; any of the other DMRS ports when RANK>2; any of the two DMRS ports sharing the same PTRS port.

[0277] In some embodiments of the present disclosure, when determining the PTRS-associated DMRS port, the actual number of PTRS ports and the DMRS port used by the actual receiving PTRS port are determined by the corresponding antenna panel / TRP / beam TCI state / SRS resource set / TO of PUSCH corresponding to the SRI determined by the preset protocol rule, and meanwhile, the same PTRS port is respectively received on the same DMRS port on different antenna panel / TRP / beam TCI state / SRS resource set / TO of PUSCH.

[0278] In some embodiments, different SRS resource sets are associated with PUSCH transmission on multiple antenna panels, and the correspondence between different SRS resource sets and SRI indication fields is indicated by an SRS resource set indication indication field.

[0279] In summary, based on the uplink transmission control device of the present disclosure, the enhanced indication under the SFN transmission of PTRS can be realized in the case that the network device indicates that the PTRS port indexes contained in the SRS resource sets indicated by different SRI indication fields actually correspond to different numbers of PTRS ports, thereby supporting the CPE estimation of the terminal multiple antenna panels under the SFN scheme of STxMP transmission in the non-codebook-based configuration, making the multi-point cooperative transmission more effective, and effectively improving the reliability and throughput of data transmission. In addition, the application of base station multi-TRP / PANEL is mainly to improve the coverage of the cell edge and provide more balanced service quality in the service area. Data is cooperatively transmitted between multiple TRPs / PANELs in different ways. From the perspective of network form, network deployment in the mode of a large number of distributed access points plus baseband centralized processing will be more conducive to providing balanced user experience rate, and significantly reducing the latency and signaling overhead caused by handover. By utilizing the cooperation between multiple TRPs or panels and the transmission / reception of channels from multiple beams in multiple directions, various shielding / blocking effects can be better overcome, the robustness of link connection can be guaranteed, and the transmission quality and reliability requirements of URLLC services can be met.

[0280] Please refer to Figure 8 , Figure 8 is a structural schematic diagram of a communication device 800 provided by an embodiment of the present disclosure. The communication device 800 can be a network device, can be a user equipment, can be a chip, a chip system, or a processor supporting the implementation of the network device to perform the above method, and can also be a chip, a chip system, or a processor supporting the implementation of the user equipment to perform the above method. The device can be used to implement the method described in the above method embodiments, and specific reference can be made to the description in the above method embodiments.

[0281] The communication apparatus 800 can comprise one or more processors 801. The processor 801 can be a general purpose processor or a special purpose processor, etc. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication apparatus (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process data of the computer program.

[0282] Optionally, the communication apparatus 800 can further comprise one or more memories 802, which can store a computer program 804. The processor 801 executes the computer program 804 to enable the communication apparatus 800 to perform the methods described in the above method embodiments. Optionally, the memory 802 can also store data. The communication apparatus 800 and the memory 802 can be separately arranged or integrated together.

[0283] Optionally, the communication apparatus 800 can further comprise a transceiver 805, an antenna 806. The transceiver 805 can be referred to as a transceiving unit, a transceiver, or a transceiving circuit, etc., and is used to implement the transceiving function. The transceiver 805 can comprise a receiver and a transmitter. The receiver can be referred to as a receiver or a receiving circuit, etc., and is used to implement the receiving function. The transmitter can be referred to as a transmitter or a transmitting circuit, etc., and is used to implement the transmitting function.

[0284] Optionally, the communication apparatus 800 can further comprise one or more interface circuits 807. The interface circuit 807 is used to receive code instructions and transmit them to the processor 801. The processor 801 runs the code instructions to enable the communication apparatus 800 to perform the methods described in the above method embodiments.

[0285] In an implementation manner, the processor 801 can comprise a transceiver for implementing the receiving and transmitting functions. For example, the transceiver can be a transceiving circuit, or an interface, or an interface circuit. The transceiving circuit, the interface, or the interface circuit for implementing the receiving and transmitting functions can be separate or integrated together. The transceiving circuit, the interface, or the interface circuit described above can be used for reading and writing of codes / data, or the transceiving circuit, the interface, or the interface circuit described above can be used for transmission or transfer of signals.

[0286] In an implementation manner, the processor 801 can store a computer program 803. The computer program 803 runs on the processor 801 to enable the communication apparatus 800 to perform the methods described in the above method embodiments. The computer program 803 can be fixed in the processor 801. In this case, the processor 801 can be implemented by hardware.

[0287] In an implementation, the communication apparatus 800 can include circuitry that can implement the functions of transmitting or receiving or communicating in the foregoing method embodiments. The processors and transceivers described in the present disclosure can be implemented on an integrated circuit (IC), an analog IC, a radio frequency integrated circuit (RFIC), a mixed-signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processors and transceivers can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), positive channel metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0288] The communication apparatus described in the foregoing embodiments can be a network device or a user equipment, but the scope of the communication apparatus described in the present disclosure is not limited thereto, and the structure of the communication apparatus can not be limited by Figure 8 The communication apparatus can be a standalone device or can be a part of a larger device. For example, the communication apparatus can be:

[0289] (1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem;

[0290] (2) a set of one or more ICs, optionally including storage for storing data, computer programs, etc.

[0291] (3) an ASIC, such as a Modem;

[0292] (4) a module that can be embedded within other devices;

[0293] (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a car device, a network device, a cloud device, an artificial intelligence device, etc.

[0294] (6) other, etc.

[0295] The present disclosure also provides a readable storage medium having instructions stored thereon, which, when executed by a computer, implement the functions of any of the method embodiments described above.

[0296] The present disclosure also provides a computer program product, which, when executed by a computer, implements the functions of any of the method embodiments described above.

[0297] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware, or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer programs are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer programs can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer programs can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be magnetic media (such as floppy disks, hard disks, magnetic tapes), optical media (such as high-density digital video discs (DVD)), or semiconductor media (such as solid state disks (SSD)), etc.

[0298] Those of ordinary skill in the art can understand that the first, second, and the like various numerical designations involved in the present disclosure are only for the convenience of description and do not limit the scope of the embodiments of the present disclosure, nor represent the order of precedence.

[0299] At least one of the present disclosure can also be described as one or more, and the plurality can be two, three, four, or more, which is not limited by the present disclosure. In the embodiments of the present disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C", and "D", and there is no order or size order between the technical features described by "first", "second", "third", "A", "B", "C", and "D".

[0300] As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, apparatus and / or device (e.g., magnetic discs, optical disks, memory, Programmable Logic Devices (PLDs)) used to provide machine instructions and / or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal used to provide machine instructions and / or data to a programmable processor.

[0301] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), and the Internet.

[0302] The computer system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server is generally established using computer programs running on the respective computers and having a client-server relationship with each other.

[0303] It should be understood that the various forms of flow shown in the above figures can be re-ordered, added to, or deleted from, without departing from the scope of the present disclosure. For example, the steps recited in the present disclosure can be performed in parallel, in series, or in a different order, without departing from the desired results of the technical solutions disclosed in the present disclosure, and are not limited herein.

[0304] In addition, it should be understood that various embodiments described in the present disclosure can be implemented alone or in combination with other embodiments as far as the scheme permits.

[0305] Those of ordinary skill in the art can realize that the units and algorithm steps of the examples described in connection with the embodiments disclosed herein can be realized in electronic hardware, or a combination of computer software and electronic hardware. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solutions. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present disclosure.

[0306] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the system, device and unit described above can refer to the corresponding processes in the foregoing method embodiments, and will not be described here.

[0307] The above merely describes specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An uplink transmission control method, characterized in that, The method is executed by a user equipment (UE), and the method includes: In the STxMP scenario where multiple uplink antenna panels transmit simultaneously, the Physical Uplink Shared Channel (PUSCH) scheduled based on a single downlink control information (DCI) receives transmission configuration information related to the Phase Tracking Reference Signal (PTRS) sent by network devices in the network scheduling multi-transmitter and receiver point (TRP) single-frequency network (SFN) transmission mode. The transmission configuration information includes the maximum number of PTRS ports, the Sounding Reference Signal (SRS) Resource Indicator (SRI) field, the Demodulation Reference Signal (DMRS) Port Indicator field, and the PTRS-DMRS Association Relationship Indicator field. For PUSCH transmission based on non-codebook, the actual PTRS transmission parameters for PUSCH transmission are determined based on the PTRS-related transmission configuration information and preset protocol rules. For PUSCH transmission based on non-codebook, based on the actual PTRS transmission parameters, PTRS is transmitted according to SFN transmission mode at the transmission timing TO of PUSCH corresponding to different antenna panel / TRP / beam TCI state / detection reference signal SRS resource sets. The actual PTRS transmission parameters include the actual number of PTRS ports and the DMRS port used by the actual PTRS transmission port.

2. The method according to claim 1, characterized in that, Different antenna panels / TRP / beam TCI status / SRS resource sets are associated with the same DMRS port or port group corresponding to the PUSCH TO.

3. The method according to claim 1, characterized in that, The transmission of PTRS on the TO of the PUSCH corresponding to different antenna panel / TRP / beam TCI states / detection reference signal SRS resource sets according to the SFN transmission mode includes: In the PUSCH multi-TRP SFN transmission mode, the same number of PTRS port data are transmitted on the TO of the PUSCH corresponding to different antenna panels / TRP / beam TCI status / detection reference signal SRS resource sets. Each PTRS port data is the same and is transmitted through the same one or more DMRS ports.

4. The method according to claim 1, characterized in that, The determination of the actual PTRS transmission parameters for PUSCH transmission based on the transmission configuration information and preset protocol rules includes: In response to the different actual number of PTRS ports corresponding to the PTRS port indexes contained in the SRS resource sets indicated by different SRI indication fields, the actual PTRS transmission parameters are determined according to the preset protocol rules based on the maximum number of PTRS ports and the association relationship between the PTRS-DMRS ports indicated by the PTRS-DMRS association indication field.

5. The method according to claim 1, characterized in that, The preset protocol rules include any one of the following: The actual number of PTRS ports is the number of PTRS ports corresponding to the preset SRI. The preset SRI is one of the SRIs associated with the TO of each antenna panel / TRP / beam TCI state / SRS resource set / PUSCH. The determined actual number of PTRS ports and the DMRS port used by the actual PTRS port are simultaneously applied to the TO of the PUSCH corresponding to each antenna panel / TRP / beam TCI state / SRS resource set. The actual number of PTRS ports is the minimum value among the PTRS ports corresponding to the SRIs associated with the TO of different antenna panels / TRPs / beam TCI states / SRS resource sets / PUSCHs. The determined actual number of PTRS ports and the DMRS ports used by the actual PTRS ports are simultaneously applied to the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets. The actual number of PTRS ports is the maximum value among the PTRS port numbers corresponding to the SRIs associated with the TOs of different antenna panels / TRPs / beam TCI states / SRS resource sets / PUSCHs. The determined actual number of PTRS ports and the DMRS ports used by the actual PTRS transmission ports are simultaneously applied to the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets.

6. The method according to claim 1, characterized in that, The preset protocol rules include any one of the following: Without using RRC configuration, the PTRS port index values ​​corresponding to all SRS resources in different SRS resource sets are all associated with the same PTRS port by default. The PTRS port index parameters corresponding to all SRS resources in the SRS resource sets associated with different antenna panels / TRP / beam TCI status / PUSCH TO are all associated with the same PTRS port. The actual number of PTRS ports is 1. The PTRS port index parameter value of an SRS resource with at least the same SRS resource index in any SRS resource set associated with different antenna panels / TRP / beam TCI status / PUSCH TO is the same as the PTRS port index parameter value of an SRS resource with the same SRS resource index in another SRS resource set.

7. The method according to claim 1, characterized in that, The method further includes: Receive RRC signaling sent by the network device. The RRC signaling includes the maximum number of PTRS ports, and the actual number of PTRS ports is less than or equal to the maximum number of PTRS ports.

8. The method according to claim 1, characterized in that, In response to the data transmission layer number RANK being equal to 1, the PTRS-DMRS association indication field is empty, and PTRS is actually transmitted on the TO of different PUSCHs using the indicated DMRS port.

9. The method according to claim 1, characterized in that, In response to a RANK greater than or equal to 2 and the actual number of PTRS ports being 1, the PTRS-DMRS association indication field determines the DMRS port used by the actual PTRS transmitting port in one of the following ways: The associated DMRS port is indicated by 2 bits; Use 1 bit to indicate one of the first two DMRS ports that share the same PTRS port; The transmission of PTRS on the TO of the PUSCH corresponding to different antenna panels / TRP / beam TCI states / SRS resource sets according to the SFN transmission mode includes: Based on the PTRS-DMRS association indication field, the DMRS port used for the actual PTRS transmission port is determined, and the DMRS port is used to transmit PTRS on the TO of different PUSCHs respectively.

10. The method according to claim 1, characterized in that, In response to a RANK greater than or equal to 2 and the actual number of PTRS ports being 2, the PTRS-DMRS association indication field determines the DMRS port used by the actual PTRS transmitting port in one of the following ways: The two associated DMRS ports are indicated by 2 bits; One bit indicates only one of two DMRS ports that share the same PTRS port, or the DMRS port corresponding to the same PTRS port for different SRS resource sets; The transmission of PTRS on the TO of the PUSCH corresponding to different antenna panels / TRP / beam TCI states / SRS resource sets according to the SFN transmission mode includes: Based on the PTRS-DMRS association indication field, determine the DMRS port corresponding to the first actual PTRS port on the TO of the PUSCH corresponding to different antenna panels / TRP / beam TCI states / SRS resource sets. Based on the default rules, determine the DMRS port corresponding to the second actual PTRS port on the TO of the PUSCH corresponding to different antenna panels / TRP / beam TCI states / SRS resource sets, and transmit PTRS respectively.

11. The method according to claim 10, characterized in that, The DMRS port determined based on the default rules is any of the following: The other of the first two DMRS ports; Any of the other DMRS ports when RANK>2; Either of two DMRS ports that share the same PTRS port.

12. The method according to any one of claims 1 to 11, characterized in that, The actual number of PTRS ports and the DMRS port used to transmit the PTRS port are determined by the SRI corresponding to the TO of the corresponding antenna panel / TRP / beam TCI state / SRS resource set / PUSCH determined by the preset protocol rules. At the same time, the same PTRS port is transmitted on the same DMRS port on different antenna panels / TRP / beam TCI state / SRS resource set / PUSCH TO.

13. The method according to any one of claims 1 to 11, characterized in that, Different SRS resource sets are associated with PUSCH transmissions on multi-antenna panels, and the correspondence between different SRS resource sets and SRI indication fields is indicated by the SRS resource set indication field.

14. An uplink transmission control method, characterized in that, The method is performed by a network device, and the method includes: In the scenario of simultaneous transmission of STxMP by multiple uplink antenna panels, the Physical Uplink Shared Channel (PUSCH) based on a single downlink control information (DCI) is used to send transmission configuration information related to the Phase Tracking Reference Signal (PTRS) to the UE under the network scheduling of multiple transmit and receive points (TRP) single-frequency network (SFN) transmission mode. The transmission configuration information includes the maximum number of PTRS ports, the Sounding Reference Signal (SRS) Resource Indicator (SRI) field, the Demodulation Reference Signal (DMRS) Port Indicator field, and the PTRS-DMRS Association Relationship Indicator field. For PUSCH transmission based on non-codebook, the actual PTRS receiving parameters for PUSCH transmission are determined based on the PTRS-related transmission configuration information and preset protocol rules. For PUSCH transmission based on non-codebook, based on the actual PTRS reception parameters, PTRS is received according to SFN transmission mode at the transmission timing TO of PUSCH corresponding to different antenna panels / TRP / beam TCI states / detection reference signal SRS resource sets. The actual PTRS reception parameters include the actual number of PTRS ports and the DMRS port used by the actual PTRS receiving port.

15. The method according to claim 14, characterized in that, Different antenna panels / TRP / beam TCI status / SRS resource sets are associated with the same DMRS port or port group corresponding to the PUSCH TO.

16. The method according to claim 14, characterized in that, The reception of PTRS on the TO of PUSCH corresponding to different antenna panels / TRP / beam TCI states / SRS resource sets according to SFN transmission mode includes: In the PUSCH multi-TRP SFN transmission mode, the same number of PTRS port data are received on the TO of the PUSCH corresponding to different antenna panels / TRP / beam TCI states / SRS resource sets. Each PTRS port data is the same and is received through the same one or more DMRS ports.

17. The method according to claim 14, characterized in that, The determination of the actual PTRS receiving parameters for PUSCH transmission based on the PTRS-related transmission configuration information and preset protocol rules includes: In response to the fact that the actual number of PTRS ports corresponding to the PTRS port indexes contained in the SRS resource sets indicated by different SRI indication fields is different, the actual PTRS reception parameters are determined based on the preset protocol rules.

18. The method according to claim 14, characterized in that, The preset protocol rules include any one of the following: The actual number of PTRS ports is the number of PTRS ports corresponding to the preset SRI. The preset SRI is one of the SRIs associated with the TO of each antenna panel / TRP / beam TCI state / SRS resource set / PUSCH. The determined actual number of PTRS ports and the DMRS port used by the actual PTRS port are simultaneously applied to the TO of the PUSCH corresponding to each antenna panel / TRP / beam TCI state / SRS resource set. The actual number of PTRS ports is the minimum value among the PTRS ports corresponding to the SRIs associated with the TO of different antenna panels / TRPs / beam TCI states / SRS resource sets / PUSCHs. The determined actual number of PTRS ports and the DMRS ports used by the actual PTRS ports are simultaneously applied to the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets. The actual number of PTRS ports is the maximum value among the PTRS port numbers corresponding to the SRIs associated with the TOs of different antenna panels / TRPs / beam TCI states / SRS resource sets / PUSCHs. The determined actual number of PTRS ports and the DMRS ports used by the actual PTRS transmission ports are simultaneously applied to the TOs of the PUSCHs corresponding to different antenna panels / TRPs / beam TCI states / SRS resource sets.

19. The method according to claim 14, characterized in that, The preset protocol rules include any one of the following: Without using RRC configuration, the PTRS port index values ​​corresponding to all SRS resources in different SRS resource sets are all associated with the same PTRS port by default. The PTRS port index parameters corresponding to all SRS resources in the SRS resource sets associated with different antenna panels / TRP / beam TCI status / PUSCH TO are all associated with the same PTRS port. The actual number of PTRS ports is 1. The PTRS port index parameter value of an SRS resource with at least the same SRS resource index in any SRS resource set associated with different antenna panels / TRP / beam TCI status / PUSCH TO is the same as the PTRS port index parameter value of an SRS resource with the same SRS resource index in another SRS resource set.

20. The method according to claim 14, characterized in that, The method further includes: Send RRC signaling to the UE, The RRC signaling includes the maximum number of PTRS ports, and the actual number of PTRS ports is less than or equal to the maximum number of ports.

21. The method according to claim 14, characterized in that, In response to the data transmission layer number RANK being equal to 1, the PTRS-DMRS association indication field is empty, and PTRS is actually received on the TO of different PUSCHs using the indicated DMRS port.

22. The method according to claim 14, characterized in that, In response to a RANK greater than or equal to 2 and the actual number of PTRS ports being 1, the PTRS-DMRS association indication field determines the DMRS port used by the actual receiving PTRS port in one of the following ways: The associated DMRS port is indicated by 2 bits; Use 1 bit to indicate one of the first two DMRS ports that share the same PTRS port; The receiving of PTRS according to SFN transmission mode at the transmission timing TO of PUSCH corresponding to different antenna panels / TRP / beam TCI states / SRS resource sets includes: Based on the PTRS-DMRS association indication field, the DMRS port used to actually receive PTRS is determined, and the DMRS port is used to receive PTRS on the TO of different PUSCHs respectively.

23. The method according to claim 14, characterized in that, In response to a RANK greater than or equal to 2 and the actual number of PTRS ports being 2, the PTRS-DMRS association indication field determines the DMRS port used by the actual receiving PTRS port in one of the following ways: The two associated DMRS ports are indicated by 2 bits; One bit indicates only one of two DMRS ports that share the same PTRS port, or the DMRS port corresponding to the same PTRS port for different SRS resource sets; The receiving of PTRS according to SFN transmission mode at the transmission timing TO of PUSCH corresponding to different antenna panels / TRP / beam TCI states / SRS resource sets includes: Based on the PTRS-DMRS association indication field, determine the DMRS port corresponding to the first actual PTRS receiving port on the TO of the PUSCH corresponding to different antenna panels / TRP / beam TCI states / SRS resource sets. Based on the default rules, determine the DMRS port corresponding to the second actual PTRS receiving port on the TO of the PUSCH corresponding to different antenna panels / TRP / beam TCI states / SRS resource sets, and receive PTRS respectively.

24. The method according to claim 23, characterized in that, The DMRS port determined based on the default rules is any of the following: The other of the first two DMRS ports; Any of the other DMRS ports when RANK>2; Either of two DMRS ports that share the same PTRS port.

25. The method according to any one of claims 14 to 24, characterized in that, When determining the DMRS port associated with PTRS, the actual number of PTRS ports and the DMRS port used to receive the PTRS port are determined by the SRI corresponding to the TO of the corresponding antenna panel / TRP / beam TCI state / SRS resource set / PUSCH determined by the preset protocol rules. At the same time, the same PTRS port is received on the same DMRS port on different antenna panels / TRP / beam TCI state / SRS resource set / PUSCH TO.

26. The method according to any one of claims 14 to 24, characterized in that, Different SRS resource sets are associated with PUSCH transmissions on multi-antenna panels, and the correspondence between different SRS resource sets and SRI indication fields is indicated by the SRS resource set indication field.

27. An uplink transmission control device, characterized in that, The device is configured on the UE, and the device includes a transceiver module, the transceiver module being used for: In the STxMP scenario where multiple uplink antenna panels simultaneously transmit, the Physical Uplink Shared Channel (PUSCH) scheduled based on a single downlink control information (DCI) in a network-scheduled multi-transmitter and receiver point (TRP) single-frequency network (SFN) transmission mode receives transmission configuration information related to the Phase Tracking Reference Signal (PTRS) sent by the network device. This transmission configuration information includes the maximum number of PTRS ports, the Sounding Reference Signal (SRS) Resource Indicator (SRI) field, the Demodulation Reference Signal (DMRS) port indication field, and the PTRS-DMRS association indication field. For PUSCH transmission based on non-codebook, the actual PTRS transmission parameters for PUSCH transmission are determined based on the PTRS-related transmission configuration information and preset protocol rules. For PUSCH transmission based on non-codebook, based on the actual PTRS transmission parameters, PTRS is transmitted according to SFN transmission mode at the transmission timing TO of PUSCH corresponding to different antenna panel / TRP / beam TCI state / detection reference signal SRS resource sets. The actual PTRS transmission parameters include the actual number of PTRS ports and the DMRS port used by the actual PTRS transmission port.

28. An uplink transmission control device, characterized in that, The device is configured in a network device, and the device includes a transceiver module, the transceiver module being used for: In the STxMP scenario where multiple uplink antenna panels simultaneously transmit information, the Physical Uplink Shared Channel (PUSCH) based on a single downlink control information (DCI) is used. Under network scheduling in a multi-transmitter and receiver point (TRP) single-frequency network (SFN) transmission mode, the PUSCH sends phase tracking reference signal (PTRS) related transmission configuration information to the UE. This transmission configuration information includes the maximum number of PTRS ports, the Sounding Reference Signal (SRS) Resource Indicator (SRI) field, the DMRS port indication field, and the PTRS-DMRS association indication field. For PUSCH transmission based on non-codebook, the actual PTRS receiving parameters for PUSCH transmission are determined based on the PTRS-related transmission configuration information and preset protocol rules. For PUSCH transmission based on non-codebook, based on the actual PTRS reception parameters, PTRS is received according to SFN transmission mode at the transmission timing TO of PUSCH corresponding to different antenna panels / TRP / beam TCI states / detection reference signal SRS resource sets. The actual PTRS reception parameters include the actual number of PTRS ports and the DMRS port used by the actual PTRS receiving port.

29. A communication device, wherein, include: transceiver; Memory; A processor, connected to both the transceiver and the memory, is configured to control the wireless signal transmission and reception of the transceiver by executing computer-executable instructions on the memory, and to implement the method described in any one of claims 1-26.

30. A computer storage medium, wherein, The computer storage medium stores computer-executable instructions; when executed by a processor, the computer-executable instructions can implement the method described in any one of claims 1-26.

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