manual
Title of Invention: Transmission method and device for phase tracking reference signal
technical field
[0001]
The present invention relates to the field of communications.
Background technique
[0002]
In the New Radio (NR, New Radio) system, some low-latency and high-reliability business scenarios need to be supported, such as augmented reality (AR, Augmented Reality) and virtual reality (VR, Virtual Reality), factory automation, including remote driving Including transportation scenarios, distributed power system control, etc. The delay requirements of these services reach the level of 0.5 milliseconds to 1 millisecond, and the reliability requirements reach the level of 1e-6. Therefore, the 5G (5th-Generation) system needs to study transmission technologies with both high reliability and low latency to meet the requirements of these business scenarios.
[0003]
In order to improve the reliability of transmission, Rel-15 has supported the repeated transmission of data channels, that is, multiple redundancy versions (RV, Redundancy Version) of the same transport block (TB, Transport Block) in multiple consecutive time slots ( slot) for repeated transmission.
[0004]
In order to further improve the reliability of transmission and further reduce the transmission delay, Rel-16 enhances the repeated transmission of the data channel. For example, multiple transmission points (TRPs, transmission points) are used to transmit the same data for terminal devices, so as to increase the reliability of transmission; for another example, multiple versions of repeated transmissions (also called repeated versions) can be transmitted in one time slot. After the internal transmission is completed, the repeated transmission at the mini-slot level is realized.
[0005]
When combined with multi-TRP technology for transmission, multiple TRPs can also use beamforming technology to transmit the same repeated version. Each TRP uses a different beamforming factor to precode (weight) the data channel, even if the quality of the transmission link between one of the TRPs and the terminal device is poor, causing signal reception to fail, as long as one duplicate version is transmitted correctly, Therefore, the reliability of transmission is greatly increased. In the beamforming technology, the beamforming factor is configured or indicated to the terminal device in the form of a transmission configuration indication (TCI), and the terminal device can select an appropriate receive filter to receive the signal to maximize signal transmission. quality.
[0006]
It should be noted that the above description of the technical background is only for the convenience of clearly and completely describing the technical solutions of the present invention, and for facilitating the understanding of those skilled in the art. It should not be assumed that the above-mentioned technical solutions are well known to those skilled in the art simply because these solutions are described in the background section of the present invention.
[0007]
SUMMARY OF THE INVENTION
[0008]
In the repeated transmission of the data channel supported by Rel-15, each repeated version is transmitted in one time slot, and K repeated versions are scheduled by a Downlink Control Information (DCI, Downlink Control Information) signaling, occupying K consecutive time slot. DCI signaling is used to indicate transmission-related parameters of the first time slot in K consecutive time slots, such as time domain resource allocation, frequency domain resource allocation, demodulation reference signal (DMRS, demodulation reference signal) antenna port, and the like. At the same time, these transmission-related parameters are also applicable to the other K-1 time slots, that is, each time slot uses the same time-frequency resource and DMRS antenna port for transmission. Therefore, each time slot only needs to transmit one data channel and corresponding reference signals, such as DMRS and phase tracking reference signal (PTRS, phase tracking reference signal).
[0009]
In Rel-15, each PTRS antenna port is associated with one DMRS antenna port. When the number of PTRS antenna ports is 2, each PTRS antenna port is associated with one DMRS antenna port in a code division multiplexing (CDM) group of DMRS corresponding to each PTRS antenna port, wherein the first PTRS antenna port is associated with the assigned The lowest numbered DMRS antenna port in the CDM group of one DMRS is associated, and the second PTRS antenna port is associated with the lowest numbered DMRS antenna port in the assigned second DMRS CDM group. That is to say, according to the existing association between PTRS antenna ports and DMRS antenna ports, the time-frequency transmission resources of PTRS are determined by the number of the associated DMRS antenna ports, and the TCI status of the PTRS antenna port and its associated The DMRS antenna ports are the same.
[0010]
However, the inventor found that when multiple duplicate versions are transmitted in the same time slot, multiple data channels and multiple reference signals, etc. will appear in one time slot. Compared to the case where only one data channel or reference signal is transmitted per time slot, some additional effects need to be considered.
[0011]
For example, when multiple duplicate versions (data channels) are transmitted in one time slot, if the DMRS transmission method supported by Rel-15 is used, that is, the same DMRS antenna port is used for transmission at each transmission opportunity, this will lead to The DMRS antenna ports all come from a code division multiplexing (CDM, code division multiplexing) group, and accordingly, only one PTRS antenna port is associated with it. However, when multiple data channels in a time slot come from different TRPs, it is necessary to estimate the phase noise of multiple TRPs (ie, noise sources), thus requiring PTRS transmitted by multiple antenna ports. That is to say, the existing association between the PTRS antenna ports and the DMRS antenna ports will cause the number of transmitted PTRS antenna ports to be less than the number of noise sources, so that the phase noise in the system cannot be accurately estimated. For another example, if a different DMRS antenna port is used for transmission at each transmission opportunity, only the DMRS antenna port will be allocated to the first transmission opportunity through DCI signaling, and the time-frequency transmission resources and the time-frequency transmission resources of multiple PTRS ports cannot be determined. TCI status.
[0012]
In order to solve at least one of the above problems, embodiments of the present invention provide a method and apparatus for transmitting a phase tracking reference signal (PTRS).
[0013]
According to a first aspect of the embodiments of the present invention, an apparatus for transmitting a phase tracking reference signal (PTRS) is provided, the apparatus is applied to a terminal device side, and the apparatus includes: a first receiving unit configured to receive network equipment configuration information or indication information sent, the configuration information or indication information is used to instruct the terminal device to receive at least two versions of a transport block in one scheduling unit; and a first determination unit, which is used for according to the configuration information, The indication information or the predefined rule determines the association relationship between the PTRS antenna port and the DMRS antenna port.
[0014]
According to a second aspect of the embodiments of the present invention, there is provided an apparatus for transmitting a phase tracking reference signal (PTRS), the apparatus is applied to a terminal device side, and the apparatus includes: a second determining unit configured to The TCI status determines the TCI status of the PTRS antenna port.
[0015]
According to a third aspect of the embodiments of the present invention, there is provided an apparatus for transmitting a phase tracking reference signal (PTRS), the apparatus is applied to a terminal device side, and the apparatus includes: a third determining unit, which is configured to determine according to the PTRS antenna The association between the port and the DMRS antenna port determines the time-frequency resources of the PTRS antenna port.
[0016]
According to a fourth aspect of the embodiments of the present invention, there is provided an apparatus for transmitting a Phase Tracking Reference Signal (PTRS), the apparatus is applied to a network device side, and the apparatus includes: a first sending unit, which is configured to transmit to a terminal device Send configuration information or indication information, the configuration information or indication information is used to instruct the terminal device to receive at least two versions of a transport block in one scheduling unit, and the configuration information or indication information is used by the terminal device according to The configuration information, indication information or predefined rules determine the association between the PTRS antenna ports and the DMRS antenna ports.
[0017]
According to a fifth aspect of the embodiments of the present invention, a terminal device is provided, including the apparatus according to any one of the first to fourth aspects of the embodiments of the present invention.
[0018]
According to a sixth aspect of the embodiments of the present invention, a network device is provided, including the apparatus according to the fourth aspect of the embodiments of the present invention.
[0019]
According to a seventh aspect of the embodiments of the present invention, there is provided a communication system, where the communication system includes the terminal device according to the fifth aspect of the embodiments of the present invention and/or the terminal device according to the sixth aspect of the embodiments of the present invention network equipment.
[0020]
According to an eighth aspect of the embodiments of the present invention, a method for transmitting a phase tracking reference signal (PTRS) is provided, the method is applied to a terminal device side, and the method includes: receiving configuration information or indication information sent by a network device, The configuration information or the indication information is used to instruct the terminal device to receive at least two versions of a transport block in one scheduling unit; and according to the configuration information, the indication information or the predefined rule, determine the PTRS antenna port and the DMRS antenna port association relationship.
[0021]
According to a ninth aspect of the embodiments of the present invention, a method for transmitting a phase tracking reference signal (PTRS) is provided, the method is applied to a terminal device side, and the method includes: determining a TCI of a PTRS antenna port according to a received TCI state state.
[0022]
According to a tenth aspect of the embodiments of the present invention, a method for transmitting a phase tracking reference signal (PTRS) is provided. The method is applied to a terminal device side, and the method includes: according to the association relationship between the PTRS antenna port and the DMRS antenna port , determine the time-frequency resources of the PTRS antenna port.
[0023]
According to an eleventh aspect of the embodiments of the present invention, a method for transmitting a phase tracking reference signal (PTRS) is provided, the method is applied to a network device side, and the method includes: sending configuration information or indication information to a terminal device, The configuration information or the indication information is used to instruct the terminal device to receive at least two versions of a transport block in one scheduling unit, and the configuration information or the indication information is used for the terminal device to use the configuration information and the indication information according to the configuration information and the indication information. Or a predefined rule to determine the association relationship between the PTRS antenna port and the DMRS antenna port.
[0024]
According to a twelfth aspect of the embodiments of the present invention, there is provided a computer-readable program, wherein when the program is executed in a phase tracking reference signal (PTRS) transmission apparatus or terminal equipment, the program causes the phase A tracking reference signal (PTRS) transmission apparatus or terminal device executes the phase tracking reference signal (PTRS) transmission method described in any one of the eighth to tenth aspects of the embodiments of the present invention.
[0025]
According to a thirteenth aspect of the embodiments of the present invention, there is provided a storage medium storing a computer-readable program, wherein the computer-readable program causes a phase tracking reference signal (PTRS) transmission apparatus or terminal device to execute the embodiments of the present invention The method for transmitting a phase tracking reference signal (PTRS) according to any one of the eighth aspect to the tenth aspect.
[0026]
According to a fourteenth aspect of the embodiments of the present invention, there is provided a computer-readable program, wherein when the program is executed in a phase tracking reference signal (PTRS) transmission apparatus or network device, the program causes the phase A tracking reference signal (PTRS) transmission apparatus or network device executes the phase tracking reference signal (PTRS) transmission method described in the eleventh aspect of the embodiments of the present invention.
[0027]
According to a fifteenth aspect of the embodiments of the present invention, a storage medium storing a computer-readable program is provided, wherein the computer-readable program causes a phase tracking reference signal (PTRS) transmission apparatus or network device to execute the embodiments of the present invention The transmission method of the phase tracking reference signal (PTRS) according to the eleventh aspect.
[0028]
The beneficial effect of the embodiments of the present invention is that: the terminal device determines the PTRS antenna port and the PTRS antenna port according to the configuration information or indication information sent by the network device for receiving at least two versions of the transport block in one scheduling unit, or according to a predefined rule. Therefore, each scheduling unit can support the transmission of multiple PTRS antenna ports, and then can estimate the phase noise of more than one noise source, which ensures the accuracy of the phase noise estimation in the system.
[0029]
With reference to the following description and drawings, specific embodiments of the invention are disclosed in detail, indicating the manner in which the principles of the invention may be employed. It should be understood that embodiments of the present invention are not thereby limited in scope. Embodiments of the invention include many changes, modifications and equivalents within the spirit and scope of the appended claims.
[0030]
Features described and/or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, in combination with, or instead of features in other embodiments .
[0031]
It should be emphasized that the term "comprising/comprising/having" as used herein refers to the presence of features, elements, steps or components, but does not exclude the presence or addition of one or more other features, elements, steps or components.
Description of drawings
[0032]
Elements and features described in one figure or embodiment of the invention may be combined with elements and features shown in one or more other figures or embodiments. Furthermore, in the figures, like reference numerals refer to corresponding parts throughout the several figures, and may be used to designate corresponding parts that are used in more than one embodiment.
[0033]
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention, constitute a part of the specification, are used to illustrate embodiments of the invention, and together with the written description, serve to explain the principles of the invention. Obviously, the drawings in the following description are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort. In the attached image:
[0034]
1 is a schematic diagram of a communication system according to an embodiment of the present invention;
[0035]
2 is a schematic diagram of a method for transmitting a phase tracking reference signal (PTRS) according to Embodiment 1 of the present invention;
[0036]
3 is a schematic diagram of a method for transmitting a phase tracking reference signal (PTRS) according to Embodiment 2 of the present invention;
[0037]
4 is another schematic diagram of a method for transmitting a phase tracking reference signal (PTRS) according to Embodiment 2 of the present invention;
[0038]
5 is a schematic diagram of a method for transmitting a phase tracking reference signal (PTRS) according to Embodiment 3 of the present invention;
[0039]
6 is a schematic diagram of a method for transmitting a phase tracking reference signal (PTRS) according to Embodiment 4 of the present invention;
[0040]
7 is a schematic diagram of an apparatus for transmitting a phase tracking reference signal (PTRS) according to Embodiment 6 of the present invention;
[0041]
8 is a schematic diagram of an apparatus for transmitting a phase tracking reference signal (PTRS) according to Embodiment 7 of the present invention;
[0042]
FIG. 9 is another schematic diagram of a phase tracking reference signal (PTRS) transmission apparatus according to Embodiment 7 of the present invention;
[0043]
10 is a schematic diagram of an apparatus for transmitting a phase tracking reference signal (PTRS) according to Embodiment 8 of the present invention;
[0044]
11 is a schematic block diagram of a system configuration of a terminal device according to Embodiment 9 of the present invention;
[0045]
FIG. 12 is a schematic structural diagram of a network device according to Embodiment 10 of the present invention.
Detailed ways
[0046]
The foregoing and other features of the present invention will become apparent from the following description with reference to the accompanying drawings. In the specification and drawings, specific embodiments of the invention are disclosed in detail, which are indicative of some of the embodiments in which the principles of the invention may be employed, it being understood that the invention is not limited to the described embodiments, but rather The invention includes all modifications, variations and equivalents falling within the scope of the appended claims.
[0047]
In the embodiments of the present invention, the terms "first", "second", etc. are used to distinguish different elements in terms of appellation, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be used by these terms restricted. The term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "comprising", "including", "having", etc. refer to the presence of stated features, elements, elements or components, but do not preclude the presence or addition of one or more other features, elements, elements or components.
[0048]
In the embodiments of the present invention, the singular forms "a", "the", etc. include plural forms, and should be broadly understood as "a" or "a class" rather than being limited to the meaning of "an"; in addition, the term "the" "" is understood to include both the singular and the plural, unless the context clearly dictates otherwise. In addition, the term "based on" should be understood as "at least in part based on..." and the term "based on" should be understood as "based at least in part on..." unless the context clearly dictates otherwise.
[0049]
In this embodiment of the present invention, the term "communication network" or "wireless communication network" may refer to a network conforming to any of the following communication standards, such as Long Term Evolution (LTE, Long Term Evolution), Long Term Evolution enhanced (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed ​​Packet Access (HSPA, High-Speed ​​Packet Access) and so on.
[0050]
Moreover, the communication between devices in the communication system can be carried out according to communication protocols at any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and future 5G, New Radio (NR, New Radio), etc., and/or other communication protocols currently known or to be developed in the future.
[0051]
In this embodiment of the present invention, the term "network device" refers to, for example, a device in a communication system that connects a user equipment to a communication network and provides services for the user equipment. Network devices may include but are not limited to the following devices: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobility management entity (MME, Mobile Management Entity), gateway, server, Radio Network Controller (RNC, Radio Network Controller), Base Station Controller (BSC, Base Station Controller) and so on.
[0052]
The base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), and 5G base station (gNB), etc., and may also include a remote radio head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low power node (eg femto, pico, etc.). And the term "base station" may include some or all of their functions, each base station may provide communication coverage for a particular geographic area. The term "cell" may refer to a base station and/or its coverage area, depending on the context in which the term is used.
[0053]
In this embodiment of the present invention, the term "user equipment" (UE, User Equipment) refers to, for example, a device that accesses a communication network through a network device and receives network services, and may also be referred to as "terminal equipment" (TE, Terminal Equipment). A terminal device may be fixed or mobile, and may also be referred to as a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, and so on.
[0054]
Wherein, the terminal device may include but is not limited to the following devices: Cellular Phone (Cellular Phone), Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication device, handheld device, machine type communication device, laptop computer, Cordless phones, smartphones, smart watches, digital cameras, and more.
[0055]
For another example, in scenarios such as the Internet of Things (IoT, Internet of Things), the terminal device may also be a machine or device that performs monitoring or measurement, such as but not limited to: Machine Type Communication (MTC, Machine Type Communication) terminals, Vehicle communication terminal, device to device (D2D, Device to Device) terminal, machine to machine (M2M, Machine to Machine) terminal, etc.
[0056]
The following describes the scenarios of the embodiments of the present invention through examples, but the present invention is not limited thereto.
[0057]
FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention, which schematically illustrates a situation in which a terminal device and a network device are used as examples. As shown in FIG. For simplicity, FIG. 1 only takes one terminal device as an example for description. The network device 101 is, for example, an NR network device gNB, which may include at least one transmission point (TRP).
[0058]
In this embodiment of the present invention, an existing service or a service that can be implemented in the future can be performed between the network device 101 and the terminal device 102 . For example, these services include but are not limited to: Enhanced Mobile Broadband (eMBB, enhanced Mobile Broadband), Massive Machine Type Communication (mMTC, massive Machine Type Communication) and Ultra-Reliable and Low-Latency Communication (URLLC, Ultra-Reliable and Low-Latency Communication) Latency Communication), etc.
[0059]
Various implementations of the embodiments of the present invention will be described below with reference to the accompanying drawings. These embodiments are only exemplary and do not limit the present invention.
[0060]
Example 1
[0061]
An embodiment of the present invention provides a method for transmitting a phase tracking reference signal (PTRS), and the method is applied to a terminal device side.
[0062]
FIG. 2 is a schematic diagram of a method for transmitting a phase tracking reference signal (PTRS) according to Embodiment 1 of the present invention. As shown in FIG. 2 , the method includes:
[0063]
Step 201: Receive configuration information or indication information sent by a network device, where the configuration information or indication information is used to instruct a terminal device to receive at least two versions of a transport block in one scheduling unit; and
[0064]
Step 202: Determine the association relationship between the PTRS antenna port and the DMRS antenna port according to the configuration information, the indication information or the predefined rule.
[0065]
In this way, the terminal device determines the association relationship between the PTRS antenna port and the DMRS antenna port according to the configuration information or indication information sent by the network device for receiving at least two versions of the transport block in one scheduling unit, or according to a predefined rule, Therefore, each scheduling unit can support the transmission of multiple PTRS antenna ports, and then can estimate the phase noise of more than one noise source, which ensures the accuracy of the phase noise estimation in the system.
[0066]
In this embodiment, the configuration information or the indication letter sent by the network device is used to instruct the terminal device to receive at least two versions of one transport block within one scheduling unit.
[0067]
In this embodiment, the scheduling unit refers to a time unit for scheduling terminal equipment to receive data, such as one slot, two or more slots, two or more symbols, and so on.
[0068]
When the network device schedules the terminal device to transmit at least two versions of a transport block, the at least two versions are both transmitted in one scheduling unit, and the time unit occupied by each version may also be referred to as a transmission occasion.
[0069]
In this embodiment, the fact that the terminal device receives at least two versions of a transport block in one scheduling unit means that at least two versions can be transmitted in one scheduling unit, that is, at least two versions are transmitted by the terminal device in one scheduling unit take over.
[0070]
In this embodiment, at least two versions of a transport block may be at least two identical versions or different versions of a transport block, that is, at least two versions of a transport block have the same or different redundancy versions (redundancy versions, RV). When this indicates that the two versions are the same version, it can also be referred to as a duplicate version. This embodiment of the present invention does not limit whether the at least two versions are the same.
[0071]
In this embodiment, the configuration information or indication information may include at least one of the following information: a scheduled grant (configured grant) configured by higher layer signaling; the number of times the transport block configured by higher layer signaling is repeatedly transmitted; PTRS antenna port number; and Downlink Control Information (DCI).
[0072]
In step 202, the terminal device determines the association relationship between the PTRS antenna port and the DMRS antenna port according to the configuration information, the indication information or the predefined rule.
[0073]
In this embodiment, the terminal device may determine the association relationship between the PTRS antenna port and the DMRS antenna port according to the information contained in the configuration information or the indication information, or may determine the association relationship according to a pre-defined rule in the protocol.
[0074]
In this embodiment, "first", "second", ... etc. refer to the sorting of multiple elements in a certain order, while "first", "second", ... etc. only It is used to distinguish different elements by appellation, but does not indicate the spatial arrangement or chronological order of these elements.
[0075]
For example, the first PTRS antenna port refers to the PTRS antenna port ranked first among the 2 PTRS antenna ports, and the second PTRS antenna port refers to the PTRS antenna ranked second among the 2 PTRS antenna ports port.
[0076]
For example, the first DMRS antenna port does not indicate the order or number of the DMRS antenna port among the multiple DMRS antenna ports, but the first DMRS antenna port may indicate the first DMRS among the multiple DMRS antenna ports. Antenna port.
[0077]
In addition, in this embodiment, the numbers of the antenna ports do not necessarily represent the order of the antenna ports among the plurality of antenna ports.
[0078]
For example, the multiple DMRS antenna ports are 2 DMRS antenna ports numbered 0 and 1, the first DMRS antenna port refers to the DMRS antenna port numbered 0, and the second DMRS antenna port refers to the DMRS antenna port numbered 1 DMRS antenna port.
[0079]
For another example, the multiple DMRS antenna ports are two DMRS antenna ports numbered 1 and 3, the first DMRS antenna port refers to the DMRS antenna port numbered 1, and the second DMRS antenna port refers to the number 3. DMRS antenna port.
[0080]
In this embodiment, the association relationship may be at least one of the following: at least one PTRS antenna port is associated with a DMRS antenna port of a transmission opportunity; at least one PTRS antenna port is associated with a DMRS antenna port indicated by DCI; at least one PTRS antenna port is associated with A port is associated with a DMRS antenna port within the scheduling unit; and a PTRS antenna port is associated with a DMRS antenna port in a Code Division Multiplexing (CDM) group of DMRS within the scheduling unit.
[0081]
In this embodiment, the transmission of at most 2 PTRS antenna ports in each scheduling unit is taken as an example for description, but the embodiment of the present invention is not limited to this, and 3 or more PTRS antenna ports may also be transmitted in each scheduling unit .
[0082]
The following is a specific and exemplary description of the association relationship between the PTRS antenna port and the DMRS antenna port in this embodiment.
[0083]
Example 1) For the case where at least one PTRS antenna port is associated with the DMRS antenna port indicated by the DCI, the association relationship may include one of the following:
[0084]
Example 1.1) Associating 2 PTRS antenna ports with 2 DMRS antenna ports in the DMRS antenna ports indicated by DCI respectively;
[0085]
Example 1.2) Associating the first PTRS antenna port with the first DMRS antenna port among the DMRS antenna ports indicated by the DCI, and associating the second PTRS antenna port with the eighth DMRS antenna port;
[0086]
Example 1.3) Associating 2 PTRS antenna ports with the first DMRS antenna port among the DMRS antenna ports indicated by the DCI.
[0087]
In this embodiment, for example 1.1, when the number of PTRS antenna ports indicated is 2 and the number of DMRS antenna ports indicated by DCI is 2, for example, the first PTRS antenna port and the DMRS antenna ports indicated by DCI are combined Associate the DMRS antenna port with the lowest number, associate the second PTRS antenna port with the DMRS antenna port with the highest number indicated by the DCI, or sort the first PTRS antenna port with the DMRS antenna port indicated by the DCI as the first The second PTRS antenna port is associated with the second DMRS antenna port in the order of the DMRS antenna ports indicated by the DCI.
[0088]
In this embodiment, the first PTRS antenna port and the second PTRS port are associated with different DMRS antenna ports, and thus may have different time-frequency transmission resources.
[0089]
For example 1.2, when the number of PTRS antenna ports indicated is 2 and the number of DMRS antenna ports indicated by DCI is 1 or 2, for example, the first PTRS antenna port is compared with the first DMRS among the DMRS antenna ports indicated by DCI The antenna ports are associated, and the second PTRS antenna port is associated with the eighth DMRS antenna port.
[0090]
For example, the first DMRS antenna port is the DMRS antenna port ranked first among the two DMRS antenna ports indicated by the DCI, or the DMRS antenna port ranked second among the two DMRS antenna ports indicated by the DCI, or is one DMRS antenna port indicated by the DCI, or the DMRS antenna port with the smallest number among the more than one DMRS antenna ports indicated by the DCI.
[0091]
The eighth DMRS antenna port may be a DMRS antenna port that does not transmit within the scheduling unit, for example, the eighth DMRS antenna port is one of the following antenna ports: a predefined one; and the first DMRS antenna port a second DMRS antenna port within one CDM group belonging to a different CDM group; and a third DMRS antenna port belonging to the same CDM group as the first DMRS antenna port but with a different number than the first DMRS antenna port.
[0092]
In this way, by defining the relationship between the PTRS antenna port and a DMRS antenna port that is not transmitting in the scheduling unit, the terminal device can determine the time-frequency resources occupied by the PTRS transmission, and then can correctly detect and estimate the PTRS.
[0093]
For example, a predefined antenna port refers to a predefined DMRS antenna port, and the predefined DMRS antenna port is, for example, one of ports 1000, 1001, 1002, ..., 1011. In order to simplify the description, in the subsequent description, the numbers of the DMRS antenna ports are simply referred to as 0, 1, 2, . . . , 11 and so on.
[0094]
For example, the predefined one antenna port has nothing to do with the DMRS antenna port indicated by the DCI, and also has nothing to do with the first DMRS antenna port, that is, regardless of the number of the DMRS antenna port indicated by the DCI, or the Whichever the number is, the predefined antenna port is fixed.
[0095]
For example, the second DMRS antenna port refers to the DMRS antenna port with the smallest number in the CDM group with the smallest number that belongs to a different CDM group than the first DMRS antenna port.
[0096]
For example, the third DMRS antenna port refers to the DMRS antenna port with the smallest number except for the first DMRS antenna port in the CDM group where the first DMRS antenna port is located.
[0097]
For example 1.3, when the number of PTRS antenna ports indicated is 2, and the number of DMRS antenna ports indicated by DCI is 1 or 2, compare the 2 PTRS antenna ports with the first DMRS antenna port among the DMRS antenna ports indicated by DCI Associating, that is, associating the 2 PTRS antenna ports with the same DMRS antenna port among the DMRS antenna ports indicated by the DCI. The same as the example in Example 1.2, for example, the first DMRS antenna port is the first DMRS antenna port in the order of the two DMRS antenna ports indicated by the DCI, or the order of the two DMRS antenna ports indicated by the DCI is The second DMRS antenna port, or a DMRS antenna port indicated by the DCI.
[0098]
In this way, the existing mechanism can be used to make the association between the PTRS antenna port and the transmitted DMRS antenna port.
[0099]
In this embodiment, for example, the indicated number of PTRS antenna ports may be the same as the number of TCI states indicated by the TCI field or other information fields.
[0100]
Example 2) For at least one PTRS antenna port and at least one of a DMRS antenna port of a transmission occasion, a DMRS antenna port within the scheduling unit, and a DMRS antenna port in a Code Division Multiplexing (CDM) group of DMRS within the scheduling unit In the case of an association, the association relationship may also include one of the following:
[0101]
Example 2.1) Associating the first PTRS antenna port with the fourth DMRS antenna port in the first CDM group in the CDM group actually used or scheduled within the scheduling unit, and associating the second PTRS antenna port with the actual DMRS antenna port within the scheduling unit a fifth DMRS antenna port association in a second CDM group in a used or scheduled CDM group;
[0102]
Example 2.2) Associate the first PTRS antenna port with the sixth DMRS antenna port among the DMRS antenna ports allocated for the first transmission opportunity within the scheduling unit, and associate the second PTRS antenna port with the The seventh DMRS antenna port among the DMRS antenna ports allocated by the second transmission opportunity is associated.
[0103]
For example 2.1, for example, the first CDM group is the CDM group with the lowest number among the CDM groups actually used or scheduled within the scheduling unit, and the second CDM group is the CDM group with the highest number among the CDM groups actually used or scheduled within the scheduling unit the CDM group,
[0104]
For example, the actually used CDM group refers to the CDM group in which the DMRS antenna port actually used during transmission at at least one transmission opportunity is located, and may be the DMRS antenna port (that is, the DMRS antenna port indicated in the DCI through the first transmission opportunity) DMRS antenna port) and other parameters or signaling or pre-defined rules, and can also be configured or indicated by other high-layer parameters or physical layer signaling other than the antenna port indication field in the DCI.
[0105]
For another example, the fourth DMRS antenna port is the lowest numbered DMRS antenna port in the first CDM group, and the fifth DMRS antenna port is the lowest numbered DMRS antenna port in the second CDM group.
[0106]
For example 2.2, for example, the first transmission opportunity is the first transmission opportunity in timing within the scheduling unit, and the second transmission opportunity is a transmission with a different TCI state or DMRS antenna port than the first transmission opportunity opportunity.
[0107]
For another example, the sixth DMRS antenna port is the DMRS antenna port with the smallest number among the DMRS antenna ports allocated for the first transmission opportunity, that is, the DMRS antenna port with the smallest number among the DMRS antenna ports indicated by the DCI; the seventh DMRS antenna port is the lowest numbered DMRS antenna port among the DMRS antenna ports allocated for the second transmission opportunity.
[0108]
For example, the first transmission opportunity is the first transmission opportunity in the scheduling unit in timing, and the second transmission opportunity is a transmission opportunity with a different TCI state or DMRS antenna port than the first transmission opportunity.
[0109]
Code division multiplexing (CDM) for at least one PTRS antenna port with the antenna port of the DMRS indicated by the DCI, with the DMRS antenna port of the transmission occasion, with the DMRS antenna port within the scheduling unit, and with the DMRS within the scheduling unit In the case where at least one of the DMRS antenna ports in the group is associated, the association also includes various permutations and combinations of the associations in Example 1) and Example 2).
[0110]
For example, when a PTRS antenna port is configured, the association relationship between the PTRS antenna port and the DMRS antenna port is one of the association relationships mentioned in Example 1) and Example 2), that is, the DMRS antenna port associated with the PTRS antenna port is One of the following DMRS antenna ports:
[0111]
The first DMRS antenna port, the second DMRS antenna port, the third DMRS antenna port, the fourth DMRS antenna port, the fifth DMRS antenna port, the sixth DMRS antenna port, the seventh DMRS antenna port, the eighth DMRS antenna port.
[0112]
For example, when configuring 2 PTRS antenna ports, the DMRS antenna port associated with the first PTRS antenna port is one of the following DMRS antenna ports:
[0113]
The first DMRS antenna port, the second DMRS antenna port, the third DMRS antenna port, the fourth DMRS antenna port, the fifth DMRS antenna port, the sixth DMRS antenna port, the seventh DMRS antenna port, the eighth DMRS antenna port.
[0114]
The DMRS antenna port associated with the second PTRS antenna port is one of the following DMRS antenna ports:
[0115]
The first DMRS antenna port, the second DMRS antenna port, the third DMRS antenna port, the fourth DMRS antenna port, the fifth DMRS antenna port, the sixth DMRS antenna port, the seventh DMRS antenna port, the eighth DMRS antenna port.
[0116]
Above, the method for determining the association relationship between the PTRS antenna port and the DMRS antenna port in step 202 has been exemplarily described, but the embodiment of the present invention is not limited to the specific methods exemplified.
[0117]
In this embodiment, after determining the association relationship between the PTRS antenna port and the DMRS antenna port, the method may further include:
[0118]
Step 203: According to the determined association relationship between the PTRS antenna port and the DMRS antenna port, use the corresponding PTRS antenna port to transmit the PTRS.
[0119]
For example, using the determined multiple PTRS antenna ports to transmit multiple PTRSs, respectively, is used to estimate the phase noise of multiple noise sources.
[0120]
It can be known from the above embodiments that the terminal device determines the PTRS antenna port and the DMRS antenna port according to the configuration information or indication information sent by the network device for receiving at least two versions of the transport block in one scheduling unit, or according to a predefined rule. Therefore, each scheduling unit can support the transmission of multiple PTRS antenna ports, and then can estimate the phase noise of more than one noise source, which ensures the accuracy of the phase noise estimation in the system.
[0121]
Example 2
[0122]
An embodiment of the present invention provides a method for transmitting a phase tracking reference signal (PTRS), and the method is applied to a terminal device side.
[0123]
In the method described in Embodiment 1, when determining the association relationship between the PTRS antenna port and the DMRS antenna port, in some cases, it is necessary to modify the transmission behavior of the PTRS and the associated DMRS antenna port.
[0124]
For example, for Example 1.2 in Embodiment 1, the transmission behavior of the PTRS and the associated DMRS antenna port needs to be modified. The following provides specific instructions on how to modify the transmission behavior.
[0125]
FIG. 3 is a schematic diagram of a method for transmitting a phase tracking reference signal (PTRS) according to Embodiment 2 of the present invention. As shown in Figure 3, the method includes:
[0126]
Step 301: Determine the TCI state of the PTRS antenna port according to the received TCI state.
[0127]
For example, the TCI status of the PTRS antenna port may be determined according to the TCI status indicated by the TCI field or other information fields related to the TCI status. For example, the TCI status of the first PTRS antenna port is the first TCI status indicated by the TCI field or other information fields related to the TCI status, and the TCI status of the second PTRS antenna port is the TCI field or other TCI status related The second TCI state indicated by the state-related information field.
[0128]
For another example, the TCI state of the first PTRS antenna port of the two PTRS antenna ports may be the same as the TCI state of the first transmission opportunity, and the TCI state of the second PTRS antenna port may be the same as the TCI state of the second transmission opportunity. For example, the first transmission opportunity is the first transmission opportunity in the scheduling unit in timing, and the second transmission opportunity is a transmission opportunity with a different TCI state or DMRS antenna port than the first transmission opportunity.
[0129]
In this way, although the PTRS antenna port is associated with the untransmitted DMRS antenna port, by this method, the TCI status of the PTRS antenna port can still be determined.
[0130]
FIG. 4 is another schematic diagram of a method for transmitting a phase tracking reference signal (PTRS) according to Embodiment 2 of the present invention. As shown in Figure 4, the method includes:
[0131]
Step 401: Determine the time-frequency resource of the PTRS antenna port according to the association relationship between the PTRS antenna port and the DMRS antenna port.
[0132]
For example, the time-frequency resource of the first PTRS antenna port is determined by the DMRS antenna port number associated with it, and the time-frequency resource of the second PTRS antenna port and the time-frequency resource of the first PTRS antenna port have a preset Frequency offset or antenna port offset.
[0133]
The frequency offset can be achieved by increasing or decreasing a preset number of subcarriers in the frequency domain for the first PTRS antenna port, and/or, the antenna port offset can be achieved by The DMRS antenna port associated with the first PTRS antenna port among the two PTRS antenna ports is set as an antenna port obtained by increasing or decreasing a preset number on the DMRS antenna port associated with the second PTRS antenna port.
[0134]
It can be seen from the above embodiment that when determining the association relationship between the PTRS antenna port and the DMRS antenna port, in some cases, by modifying the transmission behavior of the PTRS and the associated DMRS antenna port, it is ensured that different PTRS antenna ports have different time-frequency transmissions. resources, which in turn can estimate the phase noise of more than one noise source.
[0135]
Example 3
[0136]
This embodiment of the present invention also provides a method for transmitting a phase tracking reference signal (PTRS). The method is applied to the network device side, and corresponds to Embodiment 1. Therefore, the specific implementation can refer to the description in Embodiment 1. The same The content will not be repeated.
[0137]
FIG. 5 is a schematic diagram of a method for transmitting a phase tracking reference signal (PTRS) according to Embodiment 3 of the present invention. As shown in Figure 5, the method includes:
[0138]
Step 501: Send configuration information or indication information to a terminal device, where the configuration information or indication information is used to instruct the terminal device to receive at least two versions of a transport block in one scheduling unit, and the configuration information or indication information is used for the The terminal device determines the association relationship between the PTRS antenna port and the DMRS antenna port according to the configuration information, the instruction information or the predefined rule.
[0139]
In this embodiment, the configuration information or indication information may include at least one of the following information: a scheduled grant (configured grant) configured by higher layer signaling; the number of times the transport block configured by higher layer signaling is repeatedly transmitted; PTRS antenna port number; and Downlink Control Information (DCI).
[0140]
In this embodiment, the association relationship may be at least one of the following: at least one PTRS antenna port is associated with a DMRS antenna port of a transmission opportunity; at least one PTRS antenna port is associated with a DMRS antenna port indicated by DCI; at least one PTRS antenna port is associated with The port is associated with the indicated DMRS antenna port; at least one PTRS antenna port is associated with the DMRS antenna port within the scheduling unit; and the PTRS antenna port is associated with the DMRS antenna in the Code Division Multiplexing (CDM) group of DMRS within the scheduling unit port association.
[0141]
For example, the association relationship includes: associating the 2 PTRS antenna ports with the 2 DMRS antenna ports in the DMRS antenna ports indicated by the DCI respectively, or, associating the first PTRS antenna port with the first PTRS antenna port among the DMRS antenna ports indicated by the DCI One DMRS antenna port is associated, and the second PTRS antenna port is associated with the eighth DMRS antenna port, or two PTRS antenna ports are associated with the first DMRS antenna port among the DMRS antenna ports indicated by the DCI.
[0142]
For example, the eighth DMRS antenna port is a DMRS antenna port that is not transmitting within the scheduling unit.
[0143]
For example, the association relationship further includes: associating the first PTRS antenna port with the fourth DMRS antenna port in the first CDM group in the CDM group actually used or scheduled in the scheduling unit, and associating the second PTRS antenna port with the fourth DMRS antenna port in the first CDM group in the CDM group actually used or scheduled in the scheduling unit Associated with the fifth DMRS antenna port in the second CDM group of the CDM group actually used or scheduled within the scheduling unit.
[0144]
It can be known from the above embodiments that the terminal device determines the PTRS antenna port and the DMRS antenna port according to the configuration information or indication information sent by the network device for receiving at least two versions of the transport block in one scheduling unit, or according to a predefined rule. Therefore, each scheduling unit can support the transmission of multiple PTRS antenna ports, and then can estimate the phase noise of more than one noise source, which ensures the accuracy of the phase noise estimation in the system.
[0145]
Example 4
[0146]
The embodiment of the present invention also provides a method for transmitting a phase tracking reference signal (PTRS). The method is applied to the terminal equipment side and the network equipment side, which corresponds to the embodiments 1 and 3, so the specific implementation can refer to the embodiments. For the records in 1 and 3, the same content will not be repeated.
[0147]
FIG. 6 is a schematic diagram of a method for transmitting a phase tracking reference signal (PTRS) according to Embodiment 4 of the present invention. As shown in Figure 6, the method includes:
[0148]
Step 601: The network device sends configuration information or instruction information to the terminal device,
[0149]
The configuration information or the indication information is used to instruct the terminal device to receive at least two versions of a transport block in one scheduling unit, and the configuration information or the indication information is used by the terminal device according to the configuration information, the indication information or the predefined Rules, determine the association relationship between the PTRS antenna port and the DMRS antenna port;
[0150]
Step 602: The terminal device receives the configuration information or indication information sent by the network device;
[0151]
Step 603: The terminal device determines the association relationship between the PTRS antenna port and the DMRS antenna port according to the configuration information, the indication information or the predefined rule.
[0152]
In this embodiment, the specific implementation methods of steps 601 to 603 are the same as those described in Embodiment 1 and Embodiment 3, and the description is not repeated here.
[0153]
It can be known from the above embodiments that the terminal device determines the PTRS antenna port and the DMRS antenna port according to the configuration information or indication information sent by the network device for receiving at least two versions of the transport block in one scheduling unit, or according to a predefined rule. Therefore, each scheduling unit can support the transmission of multiple PTRS antenna ports, and then can estimate the phase noise of more than one noise source, which ensures the accuracy of the phase noise estimation in the system.
[0154]
Example 5
[0155]
An embodiment of the present invention provides a method for determining a DMRS antenna port.
[0156]
The method includes: the terminal device determines, according to configuration information or indication information sent by the network device, DMRS antenna ports for more than one transmission occasion in one scheduling unit.
[0157]
The configuration or instruction information may include at least one of the following information:
[0158]
Transmission timing scheduling pattern configured by high-level signaling;
[0159]
the number of repetitions of the transport block configured by higher layer signaling; and
[0160]
Downlink Control Information (DCI).
[0161]
The DCI signaling includes at least one of the following information fields:
[0162]
DMRS antenna port indication;
[0163]
TCI status indication;
[0164]
an indication of the antenna port offset between transmission occasions; and
[0165]
Scheduling pattern related parameter fields related to DMRS antenna ports or TCI states.
[0166]
For example, the DCI indicates the DMRS antenna port of the first transmission opportunity, and the terminal device can use the DMRS antenna port of the first transmission opportunity and a predefined antenna port offset or the antenna port between the transmission occasions indicated by the DCI Offset, which determines the DMRS antenna port for other transmission opportunities. For example, the terminal device can add a predefined antenna port offset or the antenna port offset between transmission occasions indicated by DCI to the DMRS antenna port of the first transmission occasion to obtain the DMRS of other transmission occasions. DMRS antenna port.
[0167]
For another example, when the number of transmission opportunities is N, the offset may include N-1 elements, which respectively represent the DMRS antenna port offset between the second transmission opportunity and the first transmission opportunity, and the first DMRS antenna port offset between the three transmission occasions and the second transmission occasion, ..., antenna port offset between the Nth transmission occasion and the N-1th transmission occasion, etc.
[0168]
As another example, the element of the DMRS antenna port offset between each transmission occasion may be one of -8, -6, -4, -2, 0, 2, 4, 6, or 8. It is also possible to narrow the range of the offset element to one of -4, -2, 0, 2 or 4.
[0169]
For another example, the antenna ports of the first transmission opportunity indicated by DCI are 0 and 1, and the DMRS antenna port offsets of the predefined or DCI indication are 2 and 0, then the terminal device can determine the DMRS antenna port of the second transmission opportunity. are 2 and 3, and the DMRS antenna ports of the third transmission opportunity are 0 and 1.
[0170]
For another example, when the number of transmission occasions is N, the offset may include an element, which is used to indicate the DMRS antenna port of the first transmission occasion and the one that uses a different CDM group or TCI state from the first transmission occasion. Offset between DMRS antenna ports for transmission occasions. And, the terminal device determines that the DMRS antenna port of the transmission occasion that uses the same CDM group or TCI state as the first transmission occasion is the same as the DMRS antenna port of the first transmission occasion.
[0171]
For another example, the value of the offset may be one of -8, -6, -4, -2, 0, 2, 4, 6 or 8. It is also possible to narrow the range of the offset to one of -4, -2, 0, 2 or 4.
[0172]
For another example, the CDM groups used for the N transmission occasions are determined to be 0, 1, and 0, respectively, through the transmission occasion scheduling pattern configured by high-layer signaling and/or the scheduling pattern-related parameter fields in the DCI that are related to the DMRS antenna port or the TCI state. The antenna ports of the first transmission occasion indicated by DCI are 0 and 1, and the offset of the DMRS antenna ports that are predefined or indicated by DCI is 2. Therefore, it can be determined that the DMRS antenna ports used in the second transmission occasion are 2 and 3. The DMRS antenna ports for the three transmission occasions are 0 and 1.
[0173]
In this way, when multiple transmission occasions use different DMRS antenna ports and the DCI signaling only indicates the DMRS antenna port of the first transmission occasion, the terminal device can also determine the DMRS antenna ports of other transmission occasions according to the information configured or indicated by the network device .
[0174]
Example 6
[0175]
An embodiment of the present invention provides an apparatus for transmitting a phase tracking reference signal (PTRS), and the apparatus is configured on the side of a terminal device. Since the principle of the device for solving the problem is similar to that of the method in Embodiment 1, the specific implementation can refer to the implementation of the method described in Embodiment 1, and the same or related parts will not be repeated.
[0176]
FIG. 7 is a schematic diagram of an apparatus for transmitting a phase tracking reference signal (PTRS) according to Embodiment 6 of the present invention. As shown in FIG. 7 , the apparatus 700 includes:
[0177]
a first receiving unit 701, configured to receive configuration information or indication information sent by a network device, where the configuration information or indication information is used to instruct a terminal device to receive at least two versions of a transport block in one scheduling unit; and
[0178]
The first determining unit 702 is configured to determine the association relationship between the PTRS antenna port and the DMRS antenna port according to the configuration information, the indication information or the predefined rule.
[0179]
In this embodiment, for the realization of the functions of the above-mentioned units, reference may be made to the content of the relevant steps in Embodiment 1, and the description will not be repeated here.
[0180]
It can be known from the above embodiments that the terminal device determines the PTRS antenna port and the DMRS antenna port according to the configuration information or indication information sent by the network device for receiving at least two versions of the transport block in one scheduling unit, or according to a predefined rule. Therefore, each scheduling unit can support the transmission of multiple PTRS antenna ports, and then can estimate the phase noise of more than one noise source, which ensures the accuracy of the phase noise estimation in the system.
[0181]
Example 7
[0182]
An embodiment of the present invention provides an apparatus for transmitting a phase tracking reference signal (PTRS), and the apparatus can be configured on the side of a terminal device. Since the principle of the device for solving the problem is similar to that of the method in Embodiment 2, the specific implementation can refer to the implementation of the method described in Embodiment 2, and the same or related parts will not be repeated.
[0183]
FIG. 8 is a schematic diagram of an apparatus for transmitting a phase tracking reference signal (PTRS) according to Embodiment 7 of the present invention. As shown in FIG. 8 , the apparatus 800 includes:
[0184]
The second determining unit 801 is configured to determine the TCI state of the PTRS antenna port according to the received TCI state.
[0185]
In this embodiment, the method for determining the TCI state of the PTRS antenna port by the second determining unit 801 according to the received TCI state may refer to the description in Embodiment 2, and the description will not be repeated here.
[0186]
FIG. 9 is another schematic diagram of an apparatus for transmitting a phase tracking reference signal (PTRS) according to Embodiment 7 of the present invention. As shown in FIG. 9 , the apparatus 900 includes:
[0187]
The third determining unit 901 is configured to determine the time-frequency resource of the PTRS antenna port according to the association relationship between the PTRS antenna port and the DMRS antenna port.
[0188]
In this embodiment, the third determining unit 901 determines the method for determining the time-frequency resources of the PTRS antenna port according to the relationship between the PTRS antenna port and the DMRS antenna port and can refer to the description in Embodiment 2, and the description is not repeated here.
[0189]
It can be seen from the above embodiment that when determining the association relationship between the PTRS antenna port and the DMRS antenna port, in some cases, by modifying the transmission behavior of the PTRS and the associated DMRS antenna port, it is ensured that different PTRS antenna ports have different time-frequency transmissions. resources, which in turn can estimate the phase noise of more than one noise source.
[0190]
Example 8
[0191]
An embodiment of the present invention provides an apparatus for transmitting a phase tracking reference signal (PTRS), and the apparatus can be configured on a network device side. Since the principle of the device for solving the problem is similar to that of the method in Embodiment 3, the specific implementation can refer to the implementation of the method described in Embodiment 3, and the same or related parts will not be repeated.
[0192]
FIG. 10 is a schematic diagram of an apparatus for transmitting a phase tracking reference signal (PTRS) according to Embodiment 8 of the present invention. As shown in FIG. 10 , the apparatus 1000 includes:
[0193]
a first sending unit 1001, configured to send configuration information or indication information to a terminal device, where the configuration information or indication information is used to instruct the terminal device to receive at least two versions of a transport block in one scheduling unit,
[0194]
And, the configuration information or the indication information is used for the terminal device to determine the association relationship between the PTRS antenna port and the DMRS antenna port according to the configuration information, the indication information or the predefined rule.
[0195]
In this embodiment, for the method for sending configuration information or indication information by the first sending unit 1001 and the content of the configuration information or indication information, reference may be made to the descriptions in Embodiment 3 and Embodiment 1, and the description is not repeated here.
[0196]
It can be known from the above embodiments that the terminal device determines the PTRS antenna port and the DMRS antenna port according to the configuration information or indication information sent by the network device for receiving at least two versions of the transport block in one scheduling unit, or according to a predefined rule. Therefore, each scheduling unit can support the transmission of multiple PTRS antenna ports, and then can estimate the phase noise of more than one noise source, which ensures the accuracy of the phase noise estimation in the system.
[0197]
Example 9
[0198]
An embodiment of the present invention provides a terminal device, where the terminal device includes the apparatus for transmitting a phase tracking reference signal (PTRS) according to Embodiment 6 or Embodiment 7.
[0199]
FIG. 11 is a schematic block diagram of a system configuration of a terminal device according to Embodiment 9 of the present invention. As shown in FIG. 11 , the terminal device 1100 may include a processor 1110 and a memory 1120 ; the memory 1120 is coupled to the processor 1110 . Notably, this figure is exemplary; other types of structures may be used in addition to or in place of this structure to implement telecommunication functions or other functions.
[0200]
In one embodiment, the functionality of the transmission means of the Phase Tracking Reference Signal (PTRS) may be integrated into the processor 1110 . The processor 1110 may be configured to: receive configuration information or indication information sent by the network device, where the configuration information or indication information is used to instruct the terminal device to receive at least two versions of a transport block in one scheduling unit; and according to the The configuration information, instruction information or predefined rules determine the association relationship between the PTRS antenna port and the DMRS antenna port.
[0201]
Alternatively, the processor 1110 may be configured to determine the TCI status of the PTRS antenna port according to the received TCI status.
[0202]
Alternatively, the processor 1110 may be configured to: determine the time-frequency resource of the PTRS antenna port according to the association relationship between the PTRS antenna port and the DMRS antenna port.
[0203]
In another embodiment, the transmission device of the phase tracking reference signal (PTRS) may be configured separately from the processor 1110. For example, the transmission device of the phase tracking reference signal (PTRS) may be configured as a chip connected to the processor 1110, and through the processing The control of the controller 1110 is used to realize the function of the transmission means of the phase tracking reference signal (PTRS).
[0204]
As shown in FIG. 11 , the terminal device 1100 may further include: a communication module 1130 , an input unit 1140 , a display 1150 , and a power supply 1160 . It is worth noting that the terminal device 1100 does not necessarily include all the components shown in FIG. 11 ; in addition, the terminal device 1100 may also include components not shown in FIG. 11 , and reference may be made to the related art.
[0205]
As shown in FIG. 11 , the processor 1110 is sometimes referred to as a controller or operational control, and may include a microprocessor or other processor device and/or logic device that receives input and controls the various components of the terminal device 1100 . operate.
[0206]
The memory 1120, for example, may be one or more of a cache, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory or other suitable devices. Various kinds of data can be stored, and programs that execute the related information can also be stored. And the processor 1110 can execute the program stored in the memory 1120 to realize information storage or processing. The functions of other components are similar to the existing ones, and will not be repeated here. The components of the terminal device 1100 may be implemented by dedicated hardware, firmware, software, or a combination thereof without departing from the scope of the present invention.
[0207]
It can be known from the above embodiments that the terminal device determines the PTRS antenna port and the DMRS antenna port according to the configuration information or indication information sent by the network device for receiving at least two versions of the transport block in one scheduling unit, or according to a predefined rule. Therefore, each scheduling unit can support the transmission of multiple PTRS antenna ports, and then can estimate the phase noise of more than one noise source, which ensures the accuracy of the phase noise estimation in the system.
[0208]
Example 10
[0209]
An embodiment of the present invention provides a network device, where the network device includes the apparatus for transmitting a phase tracking reference signal (PTRS) as described in Embodiment 8.
[0210]
FIG. 12 is a schematic structural diagram of a network device according to Embodiment 10 of the present invention. As shown in FIG. 12 , the network device 1200 may include: a processor 1210 and a memory 1220 ; the memory 1220 is coupled to the processor 1210 . The memory 1220 can store various data; in addition, the program 1230 for information processing is also stored, and the program 1230 is executed under the control of the processor 1210 to receive various information sent by the terminal device and send various information to the terminal device. .
[0211]
In one embodiment, the functionality of the transmission means of the Phase Tracking Reference Signal (PTRS) may be integrated into the processor 1210 . The processor 1210 may be configured to: send configuration information or indication information to the terminal device, where the configuration information or indication information is used to instruct the terminal device to receive at least two versions of a transport block in one scheduling unit, and the configuration The information or indication information is used by the terminal device to determine the association relationship between the PTRS antenna port and the DMRS antenna port according to the configuration information, the indication information or the predefined rule.
[0212]
In another embodiment, the transmission device of the phase tracking reference signal (PTRS) may be configured separately from the processor 1210. For example, the transmission device of the phase tracking reference signal (PTRS) may be configured as a chip connected to the processor 1210, and through the processing The control of the controller 1210 is used to realize the function of the transmission means of the phase tracking reference signal (PTRS).
[0213]
In addition, as shown in FIG. 12, the network device 1200 may further include: a transceiver 1240, an antenna 1250, etc.; wherein, the functions of the above components are similar to those in the prior art, and details are not repeated here. It is worth noting that the network device 1200 does not necessarily include all the components shown in FIG. 12 ; in addition, the network device 1200 may also include components not shown in FIG. 23 , and reference may be made to the prior art.
[0214]
It can be known from the above embodiments that the terminal device determines the PTRS antenna port and the DMRS antenna port according to the configuration information or indication information sent by the network device for receiving at least two versions of the transport block in one scheduling unit, or according to a predefined rule. Therefore, each scheduling unit can support the transmission of multiple PTRS antenna ports, and then can estimate the phase noise of more than one noise source, which ensures the accuracy of the phase noise estimation in the system.
[0215]
Example 11
[0216]
An embodiment of the present invention provides a communication system, including the terminal device described in Embodiment 9 and/or the network device described in Embodiment 10.
[0217]
For example, the structure of the communication system can refer to FIG. 1. As shown in FIG. 1, the communication system 100 includes a network device 101 and a terminal device 102. The terminal device 102 is the same as the terminal device described in Embodiment 9, and the network device 101 is the same as the embodiment. The network devices described in 10 are the same, and the repeated content will not be repeated.
[0218]
It can be known from the above embodiments that the terminal device determines the PTRS antenna port and the DMRS antenna port according to the configuration information or indication information sent by the network device for receiving at least two versions of the transport block in one scheduling unit, or according to a predefined rule. Therefore, each scheduling unit can support the transmission of multiple PTRS antenna ports, and then can estimate the phase noise of more than one noise source, which ensures the accuracy of the phase noise estimation in the system.
[0219]
The above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware combined with software. The present invention relates to a computer readable program which, when executed by logic components, enables the logic components to implement the above-described apparatus or constituent components, or to cause the logic components to implement the above-described various methods or steps. Logic components such as field programmable logic components, microprocessors, processors used in computers, and the like. The present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.
[0220]
The method/apparatus described in conjunction with the embodiments of the present invention may be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in FIG. 7 and/or one or more combinations of the functional block diagrams may correspond to either software modules or hardware modules of the computer program flow. These software modules may correspond to the respective steps shown in FIG. 2 . These hardware modules can be implemented by, for example, solidifying these software modules using a Field Programmable Gate Array (FPGA).
[0221]
A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. A storage medium can be coupled to the processor, such that the processor can read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor. The processor and storage medium may reside in an ASIC. The software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal. For example, if a device (such as a mobile terminal) adopts a larger-capacity MEGA-SIM card or a large-capacity flash memory device, the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
[0222]
For one or more of the functional blocks and/or one or more combinations of the functional blocks described in FIG. 7, it can be implemented as a general-purpose processor, a digital signal processor ( DSP), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof. One or more of the functional blocks and/or one or more combinations of the functional blocks described with respect to FIG. 7 can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microcomputers A processor, one or more microprocessors in communication with a DSP, or any other such configuration.
[0223]
The present invention has been described above with reference to the specific embodiments, but those skilled in the art should understand that these descriptions are all exemplary and do not limit the protection scope of the present invention. Various variations and modifications of the present invention can be made by those skilled in the art in accordance with the spirit and principles of the present invention, and these variations and modifications are also within the scope of the present invention.
[0224]
According to the various implementations disclosed in the embodiments of the present invention, the following additional notes are also disclosed:
[0225]
1. An apparatus for transmitting a phase tracking reference signal (PTRS), the apparatus is applied to a terminal equipment side, and the apparatus comprises:
[0226]
a first receiving unit, configured to receive configuration information or indication information sent by the network device, where the configuration information or indication information is used to instruct the terminal device to receive at least two versions of a transport block in one scheduling unit; and
[0227]
A first determining unit, configured to determine the association relationship between the PTRS antenna port and the DMRS antenna port according to the configuration information, the indication information or the predefined rule.
[0228]
2. The device according to appendix 1, wherein,
[0229]
The configuration information or instruction information includes at least one of the following information:
[0230]
a configured grant for higher layer signaling configuration;
[0231]
The number of times the transport block configured by the higher layer signaling is repeatedly transmitted;
[0232]
the number of PTRS antenna ports configured by higher layer signaling; and
[0233]
Downlink Control Information (DCI).
[0234]
3. The device according to appendix 1 or 2, wherein,
[0235]
The association relationship is at least one of the following:
[0236]
at least one PTRS antenna port is associated with the DMRS antenna port of the transmission occasion;
[0237]
at least one PTRS antenna port is associated with the DMRS antenna port indicated by the DCI;
[0238]
at least one PTRS antenna port is associated with a DMRS antenna port within the scheduling unit; and
[0239]
PTRS antenna ports are associated with DMRS antenna ports in a Code Division Multiplexing (CDM) group of DMRS within the scheduling unit.
[0240]
4. The device according to any one of appendices 1-3, wherein,
[0241]
The association relationship includes:
[0242]
Associate the 2 PTRS antenna ports with the 2 DMRS antenna ports in the DMRS antenna ports indicated by the DCI, or,
[0243]
Associating the first PTRS antenna port with the first DMRS antenna port among the DMRS antenna ports indicated by the DCI, and associating the second PTRS antenna port with the eighth DMRS antenna port, or,
[0244]
Associate the 2 PTRS antenna ports with the first DMRS antenna port among the DMRS antenna ports indicated by the DCI.
[0245]
5. The apparatus according to appendix 4, wherein the first DMRS antenna port is the first DMRS antenna port in the order of the two DMRS antenna ports indicated by the DCI, or the two DMRS antenna ports indicated by the DCI The order in is the second DMRS antenna port, or one DMRS antenna port indicated by the DCI, or the DMRS antenna port with the smallest number among the DMRS antenna ports indicated by the DCI.
[0246]
6. The apparatus according to appendix 4, wherein the associating the two PTRS antenna ports with the two DMRS antenna ports in the DMRS antenna ports indicated by the DCI respectively comprises:
[0247]
Associate the first PTRS antenna port with the lowest numbered DMRS antenna port among the DMRS antenna ports indicated by the DCI, and associate the second PTRS antenna port with the highest numbered DMRS antenna port indicated by the DCI, or,
[0248]
Associate the first PTRS antenna port with the DMRS antenna port in the order of the first among the DMRS antenna ports indicated by the DCI, and associate the second PTRS antenna port with the DMRS in the order of the second in the DMRS antenna ports indicated by the DCI Antenna port association.
[0249]
7. The device according to appendix 4, wherein,
[0250]
The eighth DMRS antenna port is a DMRS antenna port that is not transmitting within the scheduling unit.
[0251]
8. The apparatus according to appendix 4 or 7, wherein the eighth DMRS antenna port is one of the following antenna ports:
[0252]
One predefined antenna port;
[0253]
a second DMRS antenna port within a CDM group that belongs to a different CDM group than the first DMRS antenna port; and
[0254]
A third DMRS antenna port that belongs to the same CDM group as the first DMRS antenna port but has a different number than the first DMRS antenna port.
[0255]
9. The apparatus according to appendix 8, wherein the second DMRS antenna port refers to:
[0256]
A DMRS antenna port with a minimum number in a CDM group with a minimum number that belongs to a different CDM group than the first DMRS antenna port.
[0257]
10. The apparatus according to appendix 8, wherein the third DMRS antenna port refers to:
[0258]
In the CDM group where the first DMRS antenna port is located, the DMRS antenna port with the smallest number other than the first DMRS antenna port.
[0259]
11. The device according to any one of appendices 1-3, wherein,
[0260]
The association relationship also includes,
[0261]
Associating the first PTRS antenna port with the fourth DMRS antenna port in the first CDM group in the CDM group actually used or scheduled in the scheduling unit, and associating the second PTRS antenna port with the actual use in the scheduling unit Or the fifth DMRS antenna port association in the second CDM group in the scheduled CDM group.
[0262]
12. The apparatus according to supplementary note 11, wherein the first CDM group is the CDM group with the smallest number among the CDM groups actually used or scheduled in the scheduling unit, and the second CDM group is the scheduled CDM group The CDM group with the highest number among the CDM groups actually used or scheduled in the cell.
[0263]
13. The apparatus according to appendix 11, wherein the fourth DMRS antenna port is the lowest numbered DMRS antenna port in the first CDM group, and the fifth DMRS antenna port is the second CDM group The lowest numbered DMRS antenna port in .
[0264]
14. The device according to any one of appendices 1-3, wherein,
[0265]
The association relationship also includes,
[0266]
Associating the first PTRS antenna port with the sixth DMRS antenna port among the DMRS antenna ports allocated for the first transmission opportunity in the scheduling unit, and associating the second PTRS antenna port with the sixth DMRS antenna port in the scheduling unit The seventh DMRS antenna port among the DMRS antenna ports allocated by the two transmission occasions is associated.
[0267]
15. The device according to appendix 14, wherein,
[0268]
The first transmission opportunity is a first transmission opportunity in timing in the scheduling unit, and the second transmission opportunity is a transmission opportunity with a different TCI state or DMRS antenna port from the first transmission opportunity.
[0269]
16. The device according to appendix 14, wherein,
[0270]
The sixth DMRS antenna port is the DMRS antenna port with the smallest number among the DMRS antenna ports allocated for the first transmission occasion; the seventh DMRS antenna port is among the DMRS antenna ports allocated for the second transmission occasion. The smallest numbered DMRS antenna port.
[0271]
17. The device according to any one of Supplementary Notes 1-16, wherein,
[0272]
The association relationship also includes,
[0273]
Associate a PTRS antenna port with one of the following DMRS antenna ports:
[0274]
The first DMRS antenna port, the second DMRS antenna port, the third DMRS antenna port, the fourth DMRS antenna port, the fifth DMRS antenna port, the sixth DMRS antenna port, the seventh DMRS antenna port and the eighth DMRS antenna port.
[0275]
18. The device according to any one of Supplementary Notes 1-16, wherein,
[0276]
The association relationship also includes,
[0277]
Associate the first of the 2 PTRS antenna ports with one of the following DMRS antenna ports:
[0278]
a first DMRS antenna port, a second DMRS antenna port, a third DMRS antenna port, a fourth DMRS antenna port, a fifth DMRS antenna port, a sixth DMRS antenna port, a seventh DMRS antenna port, and an eighth DMRS antenna port;
[0279]
Associate the second PTRS antenna port of the 2 PTRS antenna ports with one of the following DMRS antenna ports:
[0280]
The first DMRS antenna port, the second DMRS antenna port, the third DMRS antenna port, the fourth DMRS antenna port, the fifth DMRS antenna port, the sixth DMRS antenna port, the seventh DMRS antenna port and the eighth DMRS antenna port.
[0281]
19. The device according to appendix 1-18, wherein,
[0282]
The at least two versions are at least two identical versions or different versions of a transport block.
[0283]
20. An apparatus for transmitting a phase tracking reference signal (PTRS), the apparatus being applied to a terminal equipment side, the apparatus comprising:
[0284]
The second determination unit is configured to determine the TCI state of the PTRS antenna port according to the received TCI state.
[0285]
21. The device according to appendix 20, wherein,
[0286]
The second determining unit determines the TCI state of the PTRS antenna port according to the TCI state indicated by the TCI field or other information fields related to the TCI state.
[0287]
22. The device according to appendix 21, wherein,
[0288]
The TCI status of the first PTRS antenna port is the first TCI status indicated by the TCI field or other information fields related to the TCI status, and the TCI status of the second PTRS antenna port is the TCI field or other TCI status related The second TCI state indicated by the state-related information field.
[0289]
23. The device according to appendix 20, wherein,
[0290]
The TCI state of the first PTRS antenna port of the two PTRS antenna ports is the same as the TCI state of the first transmission occasion, and the TCI state of the second PTRS antenna port is the same as the TCI state of the second transmission occasion.
[0291]
24. The device according to appendix 23, wherein,
[0292]
The first transmission opportunity is a first transmission opportunity in timing in the scheduling unit, and the second transmission opportunity is a transmission opportunity with a different TCI state or DMRS antenna port from the first transmission opportunity.
[0293]
25. An apparatus for transmitting a phase tracking reference signal (PTRS), the apparatus being applied to a terminal equipment side, the apparatus comprising:
[0294]
The third determining unit is configured to determine the time-frequency resource of the PTRS antenna port according to the association relationship between the PTRS antenna port and the DMRS antenna port.
[0295]
26. The device according to appendix 25, wherein,
[0296]
The time-frequency resource of the first PTRS antenna port is determined by the DMRS antenna port number associated with it. There is a preset frequency offset between the time-frequency resource of the second PTRS antenna port and the time-frequency resource of the first PTRS antenna port. shift or antenna port offset.
[0297]
27. The device according to appendix 26, wherein,
[0298]
The frequency offset is realized by increasing or decreasing a preset number of subcarriers fixedly in the frequency domain for the first PTRS antenna port in the 2 PTRS antenna ports, and/or,
[0299]
The antenna port offset is preset by setting the DMRS antenna port associated with the first PTRS antenna port of the 2 PTRS antenna ports to increase or decrease the DMRS antenna port associated with the second PTRS antenna port number of antenna ports obtained.
[0300]
28. An apparatus for determining a DMRS antenna port, the apparatus being applied to a terminal device side, the apparatus comprising:
[0301]
The fourth determining unit is configured to determine, according to the configuration information or indication information sent by the network device, the DMRS antenna ports of one or more transmission occasions in one scheduling unit.
[0302]
29. The apparatus according to appendix 28, wherein the configuration or indication information may include at least one of the following information:
[0303]
Transmission timing scheduling pattern configured by high-level signaling;
[0304]
the number of repetitions of the transport block configured by higher layer signaling; and
[0305]
Downlink Control Information (DCI).
[0306]
30. The device according to appendix 29, wherein,
[0307]
The DCI signaling includes at least one of the following information fields:
[0308]
DMRS antenna port indication;
[0309]
TCI status indication;
[0310]
an indication of the antenna port offset between transmission occasions; and
[0311]
Scheduling pattern related parameter fields related to DMRS antenna ports or TCI states.
[0312]
31. The device according to any one of Supplementary Notes 28-30, wherein,
[0313]
DCI indicates the DMRS antenna port of the first transmission opportunity;
[0314]
The fourth determining unit determines the DMRS antenna ports of other transmission opportunities according to the DMRS antenna port of the first transmission opportunity, and a predefined antenna port offset or the antenna port offset between the transmission occasions indicated by the DCI .
[0315]
32. An apparatus for transmitting a phase tracking reference signal (PTRS), the apparatus being applied to a network device side, the apparatus comprising:
[0316]
a first sending unit, configured to send configuration information or indication information to the terminal device, where the configuration information or indication information is used to instruct the terminal device to receive at least two versions of a transport block in one scheduling unit,
[0317]
In addition, the configuration information or the indication information is used for the terminal device to determine the association relationship between the PTRS antenna port and the DMRS antenna port according to the configuration information, the indication information or the predefined rule.
[0318]
33. The device according to appendix 32, wherein,
[0319]
The configuration information or instruction information includes at least one of the following information:
[0320]
a configured grant for higher layer signaling configuration;
[0321]
The number of times the transport block configured by the higher layer signaling is repeatedly transmitted;
[0322]
the number of PTRS antenna ports configured by higher layer signaling; and
[0323]
Downlink Control Information (DCI).
[0324]
34. An apparatus according to appendix 32 or 33, wherein,
[0325]
The association relationship is at least one of the following:
[0326]
at least one PTRS antenna port is associated with the DMRS antenna port of the transmission occasion;
[0327]
at least one PTRS antenna port is associated with the DMRS antenna port indicated by the DCI;
[0328]
at least one PTRS antenna port is associated with the indicated DMRS antenna port;
[0329]
at least one PTRS antenna port is associated with a DMRS antenna port within the scheduling unit; and
[0330]
PTRS antenna ports are associated with DMRS antenna ports in a Code Division Multiplexing (CDM) group of DMRS within the scheduling unit.
[0331]
35. The device according to appendix 32 or 33, wherein,
[0332]
The association relationship includes:
[0333]
Associate the 2 PTRS antenna ports with the 2 DMRS antenna ports in the DMRS antenna ports indicated by the DCI, or,
[0334]
Associating the first PTRS antenna port with the first DMRS antenna port among the DMRS antenna ports indicated by the DCI, and associating the second PTRS antenna port with the eighth DMRS antenna port, or,
[0335]
Associate the 2 PTRS antenna ports with the first DMRS antenna port among the DMRS antenna ports indicated by the DCI.
[0336]
36. The device according to appendix 35, wherein,
[0337]
The eighth DMRS antenna port is a DMRS antenna port that is not transmitting within the scheduling unit.
[0338]
37. Apparatus according to any of Supplementary Notes 32-34, wherein,
[0339]
The association relationship also includes:
[0340]
Associating the first PTRS antenna port with the fourth DMRS antenna port in the first CDM group in the CDM group actually used or scheduled in the scheduling unit, and associating the second PTRS antenna port with the actual use in the scheduling unit Or the fifth DMRS antenna port association in the second CDM group in the scheduled CDM group.
[0341]
38. A terminal device, the terminal device comprising the apparatus according to any one of supplementary notes 1-31.
[0342]
39. A network device comprising the apparatus according to any one of appendices 32-37.
[0343]
40. A communication system, the communication system comprising the terminal device according to appendix 38 and/or the network device according to appendix 39.
claims
[Claim 1]
An apparatus for transmitting a phase tracking reference signal (PTRS), the apparatus is applied to a terminal device side, and the apparatus includes: a first receiving unit, configured to receive configuration information or indication information sent by a network device, the configuration information Or the indication information is used to instruct the terminal device to receive at least two versions of a transport block in one scheduling unit; and a first determination unit, which is used to determine the PTRS antenna port according to the configuration information, the indication information or the predefined rule Association with DMRS antenna ports.
[Claim 2]
The apparatus according to claim 1, wherein the configuration information or the indication information includes at least one of the following information: a scheduling grant (configured grant) configured by higher layer signaling; the number of times the transport block configured by higher layer signaling is repeatedly transmitted; The number of PTRS antenna ports configured by higher layer signaling; and Downlink Control Information (DCI).
[Claim 3]
The apparatus according to claim 1, wherein the association relationship is at least one of the following: at least one PTRS antenna port is associated with a DMRS antenna port of a transmission occasion; at least one PTRS antenna port is associated with a DMRS antenna port indicated by DCI at least one PTRS antenna port is associated with a DMRS antenna port within the scheduling unit; and a PTRS antenna port is associated with a DMRS antenna port in a code division multiplexed (CDM) group of DMRS within the scheduling unit.
[Claim 4]
The apparatus according to claim 3, wherein the association relationship comprises: associating the two PTRS antenna ports with the two DMRS antenna ports in the DMRS antenna ports indicated by the DCI, respectively, or, associating the first PTRS antenna port Associate with the first DMRS antenna port among the DMRS antenna ports indicated by the DCI, and associate the second PTRS antenna port with the eighth DMRS antenna port, or associate the 2 PTRS antenna ports with one of the DMRS antenna ports indicated by the DCI The first DMRS antenna port is associated.
[Claim 5]
The apparatus according to claim 4, wherein the first DMRS antenna port is a DMRS antenna port ranked first among the two DMRS antenna ports indicated by the DCI, or is one of the two DMRS antenna ports indicated by the DCI The second DMRS antenna port is either a DMRS antenna port indicated by the DCI, or the DMRS antenna port with the smallest number among the DMRS antenna ports indicated by the DCI.
[Claim 6]
The apparatus according to claim 4, wherein the associating the two PTRS antenna ports with the two DMRS antenna ports in the DMRS antenna ports indicated by the DCI respectively comprises: associating the first PTRS antenna port with the DMRS antenna ports indicated by the DCI Associate the DMRS antenna port with the lowest number among the antenna ports, and associate the second PTRS antenna port with the DMRS antenna port with the highest number indicated by the DCI, or, associate the first PTRS antenna port with the DMRS antenna port indicated by the DCI in the order of The first DMRS antenna port is associated, and the second PTRS antenna port is associated with the second DMRS antenna port in the order of the DMRS antenna ports indicated by the DCI.
[Claim 7]
The apparatus of claim 4, wherein the eighth DMRS antenna port is a DMRS antenna port that is not transmitting within the scheduling unit.
[Claim 8]
The apparatus of claim 7, wherein the eighth DMRS antenna port is one of the following antenna ports: a predefined one antenna port; a CDM group belonging to a different CDM group than the first DMRS antenna port a second DMRS antenna port within; and a third DMRS antenna port belonging to the same CDM group as the first DMRS antenna port but with a different number from the first DMRS antenna port.
[claim 9]
The apparatus according to claim 8, wherein the second DMRS antenna port refers to: a DMRS antenna port with a minimum number in a CDM group with a minimum number that belongs to a different CDM group than the first DMRS antenna port.
[claim 10]
The apparatus according to claim 8, wherein the third DMRS antenna port refers to: a DMRS antenna port with the lowest number except for the first DMRS antenna port in a CDM group where the first DMRS antenna port is located .
[claim 11]
The apparatus according to claim 3, wherein the association relationship further comprises: associating the first PTRS antenna port with the fourth DMRS in the first CDM group in the CDM group actually used or scheduled in the scheduling unit Antenna port association, associating the second PTRS antenna port with the fifth DMRS antenna port in the second CDM group in the CDM group actually used or scheduled in the scheduling unit.
[claim 12]
The apparatus according to claim 11, wherein the first CDM group is a CDM group with the lowest number among CDM groups actually used or scheduled within the scheduling unit, and the second CDM group is a CDM group within the scheduling unit The CDM group with the highest number among the CDM groups actually used or scheduled.
[claim 13]
12. The apparatus of claim 11, wherein the fourth DMRS antenna port is the lowest numbered DMRS antenna port in the first CDM group and the fifth DMRS antenna port is the lowest numbered DMRS antenna port in the second CDM group Lowest numbered DMRS antenna port.
[claim 14]
The apparatus according to claim 3, wherein the association relationship further comprises: associating the first PTRS antenna port with a sixth DMRS antenna port in the DMRS antenna ports allocated for the first transmission occasion in the scheduling unit In association, the second PTRS antenna port is associated with a seventh DMRS antenna port of the DMRS antenna ports allocated for the second transmission occasion within the scheduling unit.
[claim 15]
The apparatus according to claim 14, wherein the first transmission opportunity is a first transmission opportunity in timing within the scheduling unit, and the second transmission opportunity is different from the first transmission opportunity TCI state or a transmission opportunity for a DMRS antenna port.
[claim 16]
The apparatus according to claim 14, wherein, the sixth DMRS antenna port is a DMRS antenna port with the lowest number among the DMRS antenna ports allocated for the first transmission occasion; the seventh DMRS antenna port is a The DMRS antenna port with the smallest number among the DMRS antenna ports allocated by the second transmission opportunity.
[claim 17]
The apparatus of claim 1, wherein the at least two versions are at least two identical versions or different versions of a transport block.
[claim 18]
An apparatus for transmitting a phase tracking reference signal (PTRS), the apparatus is applied to a network device side, and the apparatus includes: a first sending unit, configured to send configuration information or indication information to a terminal device, the configuration information or The indication information is used for instructing the terminal device to receive at least two versions of a transport block in one scheduling unit, and the configuration information or the indication information is used for the terminal device according to the configuration information, the indication information or the predefined rule , and determine the association relationship between the PTRS antenna port and the DMRS antenna port.
[claim 19]
The apparatus according to claim 18, wherein the configuration information or the indication information includes at least one of the following information: a scheduling grant (configured grant) configured by higher layer signaling; the number of times the transport block configured by higher layer signaling is repeatedly transmitted; The number of PTRS antenna ports configured by higher layer signaling; and Downlink Control Information (DCI).
[claim 20]
The apparatus according to claim 18, wherein the association relationship is at least one of the following: at least one PTRS antenna port is associated with a DMRS antenna port of a transmission occasion; at least one PTRS antenna port is associated with a DMRS antenna port indicated by DCI at least one PTRS antenna port is associated with the indicated DMRS antenna port; at least one PTRS antenna port is associated with the DMRS antenna port within the scheduling unit; and the PTRS antenna port is code division multiplexed with the DMRS within the scheduling unit ( DMRS antenna port association in a CDM) group.