WO2024016184A1 - 一种上行解调参考信号端口确定方法及其装置 - Google Patents
一种上行解调参考信号端口确定方法及其装置 Download PDFInfo
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- the present disclosure relates to the field of communication technology, and in particular, to a method and device for determining an uplink demodulation reference signal port.
- Multipoint cooperation is still an important technical means in the New Radio (NR) system. Multipoint cooperation can improve coverage at the cell edge and provide more balanced service quality within the service area. From the perspective of network form, network deployment with a large number of distributed access points and centralized baseband processing will be more conducive to providing a balanced user experience rate and significantly reducing the delay and signaling caused by handover. overhead. As the frequency band increases, from the perspective of ensuring network coverage, relatively dense deployment of access points is also required. In the high-frequency band, as the integration of active antenna equipment increases, modular active antenna arrays will be more inclined to be used.
- each Transmission Reception Point can be divided into several relatively independent antenna panels, so the shape and number of ports of the entire array can be flexibly adjusted according to deployment scenarios and business needs.
- Antenna panels or TRPs can also be connected by optical fibers for more flexible distributed deployment.
- the millimeter wave band As the wavelength decreases, the blocking effect caused by obstacles such as human bodies or vehicles will become more significant.
- cooperation between multiple TRPs or panels can also be used to transmit/receive from multiple beams from multiple angles, thereby reducing the impact caused by the blocking effect. Negative Effects.
- Embodiments of the present disclosure provide a method and device for determining an uplink demodulation reference signal port, which can be applied to NR systems, etc., and can solve the problem of how to simultaneously transmit uplink through multiple TRPs or panels (multi-panel/multi-TRP). To support higher throughput and more reliable transmission performance.
- embodiments of the present disclosure provide a method for determining an uplink demodulation reference signal port.
- the method is executed by a terminal device having a multi-antenna panel panel.
- the method includes:
- the DMRS port allocation information is used to determine the associated DMRS port information corresponding to different panels facing different transmitting and receiving points TRP using physical uplink shared channel PUSCH transmission timing on different beams; wherein, the different panels facing different The DMRS port information corresponding to the PUSCH transmission timing on different beams used by the transmitting and receiving point TRP belongs to the same code division multiplexing CDM group or to different CDM groups.
- DMRS port allocation information indicating multiple DMRS ports is allocated to a multi-panel-based terminal device, so that the terminal device can determine the association corresponding to different panels and use TRPs on different beams for different transmitting and receiving points.
- the DMRS port information corresponding to the PUSCH transmission timing can realize flexible allocation instructions of DMRS ports that can support single-user multiple input and output (SU-MIMO) and multi-user multiple input and output (MU-MIMO) in the SDM transmission multiplexing mode. Enhancement, thereby providing a solution to support simultaneous uplink transmission of multiple panels based on a single DCI, solving how to support higher throughput and more reliability through uplink simultaneous transmission of multiple TRPs or panels in the uplink enhancement of version Rel-18 transmission performance issues.
- the single DCI also includes an antenna port indication field, and the antenna port indication field can also be used to indicate the total number of transmission ranks RANK used to transmit PUSCH, and the total RANK number is greater than 1;
- the method further includes: determining, according to the antenna port indication field and the DMRS port allocation information, the DMRS port information configured for PUSCH in different panels facing different transmitting and receiving points TRP using PUSCH transmission opportunities associated with different beams. .
- the PUSCH uses two associated PUSCH transmission opportunities on different beams in different panels facing different transmitting and receiving points TRP, and the DMRS port allocation information at least includes the PUSCH allocated for the terminal device.
- DMRS port set wherein, according to the antenna port indication field and the DMRS port allocation information, it is determined that the DMRS port information configured for PUSCH in different panels facing different transmitting and receiving points TRP using PUSCH transmission opportunities associated with different beams includes :
- the default method is used to determine the number of DMRS ports allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity in sequence; wherein, the two PUSCH transmission opportunities do not support The first RANK combination, and the total RANK number indicated by the antenna port indication field is 2 or 4.
- the PUSCH uses two associated PUSCH transmission opportunities on different beams in different panels facing different transmitting and receiving points TRP, and the DMRS port allocation information at least includes the PUSCH allocated for the terminal device.
- DMRS port set and there is a mapping relationship between the index of the DMRS port in the DMRS port set and the RANK combination supported by the multiple PUSCH transmission opportunities; wherein, according to the antenna port indication field and the DMRS port allocation information , the DMRS port information determined to be configured for PUSCH in different panels facing different transmitting and receiving points TRP using PUSCH transmission opportunities associated with different beams, including: determined separately according to the DMRS port set and the mapping relationship, using the default predefined method The number of DMRS ports corresponding to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity; wherein, the two PUSCH transmission opportunities do not support the first RANK combination, and the antenna port indication field indicates The total RANK number is 3.
- the DMRS port allocation information at least includes:
- the additional indication information is used to indicate the mapping relationship between the index of the DMRS port in the DMRS port set and the RANK combination supported by the multiple PUSCH transmission opportunities.
- the PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels facing different transmitting and receiving points TRP; the allocation is based on the antenna port indication field and the DMRS port The information is determined to be the DMRS port information configured for PUSCH in different panels facing different transmitting and receiving points TRP using PUSCH transmission timing associated with different beams, including:
- the number of DMRS ports that are sequentially allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity is determined; wherein, the two The PUSCH transmission opportunities do not support the first RANK combination, and the total number of RANK indicated by the antenna port indication field is 3.
- the DMRS port allocation information at least includes:
- the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, and the DMRS port occupied by the first PUSCH transmission opportunity belongs to the DMRS port set.
- the PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels facing different transmitting and receiving points TRP; the allocation is based on the antenna port indication field and the DMRS port The information is determined to be the DMRS port information configured for PUSCH in different panels facing different transmitting and receiving points TRP using PUSCH transmission timing associated with different beams, including:
- the DMRS port set and the DMRS ports occupied by the first PUSCH transmission opportunity indicated by the additional indication information determine the corresponding allocation to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity.
- DMRS port information wherein, the two PUSCH transmission opportunities do not support the first RANK combination, and the total RANK number indicated by the antenna port indication field is 3.
- the PUSCH uses two associated PUSCH transmission opportunities on different beams in different panels facing different transmitting and receiving points TRP, and the DMRS port allocation information at least includes the DMRS port allocated for the terminal device. Set; wherein, according to the antenna port indication field and the DMRS port allocation information, it is determined that PUSCH is configured in different panels for different transmitting and receiving points TRP using PUSCH transmission opportunities associated with different beams, including:
- a default method is used to determine the number of DMRS ports allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity in sequence; wherein, the two PUSCH transmission opportunities support the first RANK combination, and the total RANK number indicated by the antenna port indication field is 2.
- the PUSCH uses two associated PUSCH transmission opportunities on different beams in different panels facing different transmitting and receiving points TRP, and the DMRS port allocation information at least includes the DMRS port allocated for the terminal device. set, and there is a mapping relationship between the index of the DMRS port in the DMRS port set and the RANK combination supported by the multiple PUSCH transmission opportunities; wherein, according to the antenna port indication field and the DMRS port allocation information, it is determined to be PUSCH
- the DMRS port information configured in different panels for different transmitting and receiving points TRP uses the associated PUSCH transmission timing on different beams, including:
- a default predefined method is used to determine the number of DMRS ports corresponding to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity; wherein, the two The PUSCH transmission opportunity supports the first RANK combination, and the total RANK number indicated by the antenna port indication field is 3 or 4.
- the PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels facing different transmitting and receiving points TRP; the allocation is based on the antenna port indication field and the DMRS port The information is determined to be the DMRS port information configured for PUSCH in different panels facing different transmitting and receiving points TRP using PUSCH transmission timing associated with different beams, including:
- the number of DMRS ports that are sequentially allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity is determined; wherein, the two Each PUSCH transmission opportunity supports the first RANK combination, and the total number of RANKs indicated by the antenna port indication field is 3 or 4.
- the PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels facing different transmitting and receiving points TRP; the allocation is based on the antenna port indication field and the DMRS port The information is determined to be the DMRS port information configured for PUSCH in different panels facing different transmitting and receiving points TRP using PUSCH transmission timing associated with different beams, including:
- the DMRS port set and the DMRS ports occupied by the first PUSCH transmission opportunity indicated by the additional indication information determine the corresponding allocation to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity.
- DMRS port information wherein, the two PUSCH transmission opportunities support the first RANK combination, and the total RANK number indicated by the antenna port indication field is 3 or 4.
- the first RANK combination is a RANK combination of 1+3 mode or 3+1 mode.
- the single DCI also includes at least one sounding reference signal resource indication SRI and/or precoding matrix indication TPMI indication field, and an antenna port indication field, where,
- the at least one SRI and/or TPMI indication field is used to indicate the RANK combination corresponding to the actual PUSCH transmission corresponding to the multiple PUSCH transmission opportunities;
- the antenna port indication field is used to indicate the total DMRS port set allocated to the terminal device.
- the method further includes:
- the at least one SRI and/or TPMI indication field and the antenna port indication field it is determined that DMRS port information configured for PUSCH in different panels facing different transmitting and receiving points TRP uses associated PUSCH transmission opportunities on different beams.
- the PUSCH is associated with two PUSCH transmission opportunities on different beams in different panels facing different transmitting and receiving points TRP, and the at least one SRI and/or TPMI indication field includes two SRIs. and/or TPMI indication domain, where,
- the first SRI and/or TPMI indication field is used to indicate the RANK number corresponding to the first PUSCH transmission opportunity
- the second SRI and/or TPMI indication field is used to indicate the RANK number corresponding to the second PUSCH transmission opportunity.
- PUSCH is associated with different beams in different panels facing different transmitting and receiving points TRP.
- DMRS port information configured for PUSCH transmission timing, including:
- the RANK number corresponding to the first PUSCH transmission opportunity indicated by the first SRI and/or TPMI indication field and the second PUSCH transmission opportunity indicated by the second SRI and/or TPMI indication field determines the RANK combination supported by the two PUSCH transmission opportunities
- the corresponding allocation to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity are determined respectively. Describes the DMRS port information of PUSCH transmission timing.
- the PUSCH is associated with two PUSCH transmission opportunities on different beams in different panels facing different transmitting and receiving points TRP, and the at least one SRI and/or TPMI indication field includes an SRI and /or TPMI indication field,
- the code point of the one SRI and/or TPMI indication field corresponds to indicating two valid SRIs and/or TPMIs, wherein the first valid SRI and/or TPMI is used to indicate the first PUSCH.
- the second valid SRI and/or TPMI is used to indicate the number of RANK corresponding to the second PUSCH transmission opportunity.
- PUSCH is associated with different beams in different panels facing different transmitting and receiving points TRP.
- DMRS port information configured for PUSCH transmission timing, including:
- the RANK number corresponding to the first PUSCH transmission opportunity indicated by the first valid SRI and/or TPMI, and the second PUSCH transmission opportunity indicated by the second valid SRI and/or TPMI are determined in a predefined manner to determine the corresponding allocation to the first PUSCH transmission opportunity and the second PUSCH transmission.
- DMRS port information of the opportunity is determined in a predefined manner to determine the corresponding allocation to the first PUSCH transmission opportunity and the second PUSCH transmission.
- the DMRS port allocation information at least includes additional indication information, and the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, wherein the first PUSCH transmission opportunity The occupied DMRS port belongs to the DMRS port set.
- PUSCH is associated with different beams in different panels facing different transmitting and receiving points TRP.
- DMRS port information configured for PUSCH transmission timing, including:
- the RANK number corresponding to the first PUSCH transmission opportunity indicated by the first valid SRI and/or TPMI, and the second PUSCH transmission opportunity indicated by the second valid SRI and/or TPMI are respectively determined to be allocated to DMRS port information of the first PUSCH transmission opportunity and the second PUSCH transmission opportunity.
- embodiments of the present disclosure provide another method for determining an uplink demodulation reference signal port.
- the method is executed by a network side device.
- the method includes:
- the demodulation reference signal DMRS port allocation table allocate DMRS port allocation information indicating multiple DMRS ports to a terminal device with a multi-antenna panel panel;
- the single DCI includes the DMRS port allocation information, and the DMRS port allocation information is used to determine the association corresponding to different panels facing different transmitting and receiving points TRP using different physical beams.
- the network side device allocates DMRS port allocation information indicating multiple DMRS ports to the multi-panel-based terminal device, so that the terminal device can determine the association corresponding to different panels and use different TRPs for different sending and receiving points.
- the DMRS port information corresponding to the PUSCH transmission timing on the beam can realize flexible DMRS ports that can support single-user multiple input and output (SU-MIMO) and multi-user multiple input and output (MU-MIMO) in the SDM transmission multiplexing mode.
- the enhancement of allocation indication provides a solution to support simultaneous uplink transmission of multiple panels based on a single DCI, solving how to support higher throughput through uplink simultaneous transmission of multiple TRPs or panels in the uplink enhancement of version Rel-18. and more reliable transmission performance issues.
- the single DCI further includes an antenna port indication field, and the antenna port indication field is used to indicate a total transmission rank RANK number corresponding to the transmission of PUSCH, and the total RANK number is greater than 1.
- the PUSCH uses two associated PUSCH transmission opportunities on different beams in different panels facing different transmitting and receiving points TRP, and the DMRS port allocation information at least includes the PUSCH allocated for the terminal device. DMRS port collection.
- the PUSCH uses two associated PUSCH transmission opportunities on different beams in different panels facing different transmitting and receiving points TRP, and the DMRS port allocation information at least includes the PUSCH allocated for the terminal device.
- DMRS port set and there is a mapping relationship between the index of the DMRS port in the DMRS port set and the RANK combination supported by the multiple PUSCH transmission opportunities.
- the DMRS port allocation information at least includes:
- the additional indication information is used to indicate the mapping relationship between the index of the DMRS port in the DMRS port set and the RANK combination supported by the multiple PUSCH transmission opportunities.
- the DMRS port allocation information at least includes:
- the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, and the DMRS port occupied by the first PUSCH transmission opportunity belongs to the DMRS port set.
- the single DCI also includes at least one sounding reference signal resource indication SRI and/or precoding matrix indication TPMI indication field, and an antenna port indication field, wherein the at least one SRI and/or The TPMI indication field is used to indicate the RANK combination corresponding to the actual PUSCH transmission corresponding to the multiple PUSCH transmission opportunities;
- the antenna port indication field is used to indicate the total DMRS port set allocated to the terminal device.
- the PUSCH is associated with two PUSCH transmission opportunities on different beams in different panels facing different transmitting and receiving points TRP, and the at least one SRI and/or TPMI indication field includes two SRIs. and/or TPMI indication field, wherein the first SRI and/or TPMI indication field is used to indicate the RANK number corresponding to the first PUSCH transmission opportunity; the second SRI and/or TPMI indication field is used to indicate The RANK number corresponding to the second PUSCH transmission opportunity is indicated.
- the PUSCH is associated with two PUSCH transmission opportunities on different beams in different panels facing different transmitting and receiving points TRP
- the at least one SRI and/or TPMI indication field includes an SRI and /or TPMI indication field, wherein the code point of one SRI and/or TPMI indication field corresponds to indicating two valid SRIs and/or TPMIs, wherein the first valid SRI and/or TPMI is used to indicate The RANK number corresponding to the first PUSCH transmission opportunity, and the second valid SRI and/or TPMI are used to indicate the RANK number corresponding to the second PUSCH transmission opportunity.
- the DMRS port allocation information at least includes additional indication information, and the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, wherein the first PUSCH transmission opportunity The occupied DMRS port belongs to the DMRS port set.
- embodiments of the present disclosure provide a communication device that has some or all of the functions of the terminal device for implementing the method described in the first aspect.
- the functions of the communication device may have some or all of the functions of the present disclosure.
- the functions in the embodiments may also be used to independently implement any of the embodiments of the present disclosure.
- the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
- the hardware or software includes one or more units or modules corresponding to the above functions.
- the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the above method.
- the transceiver module is used to support communication between the communication device and other devices.
- the communication device may further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data for the communication device.
- the processing module may be a processor
- the transceiver module may be a transceiver or a communication interface
- the storage module may be a memory
- embodiments of the present disclosure provide another communication device, which has some or all functions of the network-side device for implementing the method example described in the second aspect.
- the functions of the communication device may include the functions of the communication device in the present disclosure.
- the functions in some or all of the embodiments may also be used to independently implement any one of the embodiments of the present disclosure.
- the functions described can be implemented by hardware, or by hardware executing corresponding software.
- the hardware or software includes one or more units or modules corresponding to the above functions.
- the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the above method.
- the transceiver module is used to support communication between the communication device and other devices.
- the communication device may further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data for the communication device.
- the processing module may be a processor
- the transceiver module may be a transceiver or a communication interface
- the storage module may be a memory
- an embodiment of the present disclosure provides a communication device.
- the communication device includes a processor.
- the processor calls a computer program in a memory, it executes the method described in the first aspect.
- an embodiment of the present disclosure provides a communication device.
- the communication device includes a processor.
- the processor calls a computer program in a memory, it executes the method described in the second aspect.
- an embodiment of the present disclosure provides a communication device.
- the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.
- an embodiment of the present disclosure provides a communication device.
- the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the second aspect above.
- an embodiment of the present disclosure provides a communication device.
- the device includes a processor and an interface circuit.
- the interface circuit is used to receive code instructions and transmit them to the processor.
- the processor is used to run the code instructions to cause the The device performs the method described in the first aspect.
- an embodiment of the present disclosure provides a communication device.
- the device includes a processor and an interface circuit.
- the interface circuit is used to receive code instructions and transmit them to the processor.
- the processor is used to run the code instructions to cause the The device performs the method described in the second aspect above.
- embodiments of the present disclosure provide an uplink demodulation reference signal port determination system.
- the system includes the communication device described in the third aspect and the communication device described in the fourth aspect, or the system includes the fifth aspect.
- the communication device and the communication device according to the sixth aspect, or the system includes the communication device according to the seventh aspect and the communication device according to the eighth aspect, or the system includes the communication device according to the ninth aspect. device and the communication device according to the tenth aspect.
- embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned terminal equipment. When the instructions are executed, the terminal equipment is caused to execute the above-mentioned first aspect. method.
- embodiments of the present invention provide a readable storage medium for storing instructions used by the above-mentioned network-side device. When the instructions are executed, the network-side device is caused to execute the above-mentioned second aspect. Methods.
- the present disclosure also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the first aspect.
- the present disclosure also provides a computer program product including a computer program, which, when run on a computer, causes the computer to execute the method described in the second aspect.
- the present disclosure provides a chip system, which includes at least one processor and an interface for supporting a terminal device to implement the functions involved in the first aspect, for example, determining or processing data involved in the above method. and information.
- the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the terminal device.
- the chip system may be composed of chips, or may include chips and other discrete devices.
- the present disclosure provides a chip system.
- the chip system includes at least one processor and an interface for supporting the network side device to implement the functions involved in the second aspect, for example, determining or processing the functions involved in the above method. At least one of data and information.
- the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the network side device.
- the chip system may be composed of chips, or may include chips and other discrete devices.
- the present disclosure provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect.
- the present disclosure provides a computer program that, when run on a computer, causes the computer to perform the method described in the second aspect.
- Figure 1 is an example diagram of a front-load DMRS pattern in the case of configuration type 1 and 1 symbol provided by an embodiment of the present disclosure
- Figure 2 is an example diagram of front-load DMRS pattern in the case of configuration type 1 and 2 symbols provided by the embodiment of the present disclosure
- Figure 3 is an example diagram of a front-load DMRS pattern in the case of configuration type 2 and 1 symbol provided by the embodiment of the present disclosure
- Figure 4 is an example diagram of a front-load DMRS pattern in the case of configuration type 2 and 2 symbols provided by the embodiment of the present disclosure
- Figure 5 is a logic diagram of a multi-panel transmission implementation based on a single DCI provided by an embodiment of the present disclosure
- Figure 6 is an example diagram of scheduling and transmission of multi-layer data using 2 codewords CW provided by an embodiment of the present disclosure
- Figure 7 is an architectural schematic diagram of a communication system provided by an embodiment of the present disclosure.
- Figure 8 is a schematic flowchart of a method for determining an uplink demodulation reference signal port provided by an embodiment of the present disclosure
- FIG. 9 is a schematic flowchart of another uplink demodulation reference signal port determination method provided by an embodiment of the present disclosure.
- Figure 10 is a schematic flowchart of yet another method for determining an uplink demodulation reference signal port provided by an embodiment of the present disclosure
- Figure 11 is a schematic flowchart of yet another method for determining an uplink demodulation reference signal port provided by an embodiment of the present disclosure
- Figure 12 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure.
- Figure 13 is a schematic structural diagram of another communication device provided by an embodiment of the present disclosure.
- Figure 14 is a schematic structural diagram of a chip provided by an embodiment of the present disclosure.
- NR New Radio
- TRP Transmission Reception Point
- Antenna panels or TRPs can also be connected by optical fibers for more flexible distributed deployment.
- the blocking effect caused by obstacles such as human bodies or vehicles will become more significant.
- cooperation between multiple TRPs or panels can also be used to transmit/receive from multiple beams from multiple angles, thereby reducing the impact caused by the blocking effect. Negative Effects.
- cooperative multipoint transmission technology can be divided into two types: coherent and non-coherent transmission.
- coherent transmission each data layer will be mapped to multiple TRPs/panels through weighted vectors.
- non-coherent transmission each data stream is only mapped to part of the TRP/panel.
- Coherent transmission has higher requirements for synchronization between transmission points and the transmission capacity of the backhaul link, and is therefore sensitive to many non-ideal factors in actual deployment conditions. Relatively speaking, non-coherent transmission is less affected by the above factors, so it is a key consideration for multi-point transmission technology.
- Version Rel-16 is mainly aimed at the physical downlink shared channel (PDSCH).
- version Rel-17 standardizes MTRP for uplink PUSCH (Physical Uplink Shared Channel)/PUCCH (Physical Uplink Control Channel, physical uplink control channel), but only standardizes TDM (Time Division Multiplexing) ) transmission scheme
- the current version Rel-18 considers simultaneous transmission enhancement based on multi-panel terminal MTRP for PUSCH/PUCCH.
- the data layer for data transmission corresponds to the DMRS port used for demodulation.
- the DMRS design of the data channel (PDSCH/PUSCH) in the NR system mainly includes the following aspects:
- Front-load DMRS In each scheduling time unit, the position where DMRS first appears should be as close as possible to the starting point of scheduling.
- the use of front-load DMRS helps the receiving side quickly estimate the channel and perform reception detection, which plays an important role in reducing delay and supporting the so-called self-contained structure.
- front-load DMRS can occupy up to two consecutive OFDM symbols.
- Additional DMRS For low mobility scenarios, front-load DMRS can obtain channel estimation performance that meets demodulation requirements with lower overhead. However, the moving speed considered by the NR system can be up to 500km/h. Faced with such a large dynamic range of mobility, in addition to front-load DMRS, in medium/high-speed scenarios, it also needs to be deployed within the scheduling duration. More DMRS symbols to meet the estimation accuracy of channel time variability. To address this problem, the NR system adopts a DMRS structure that combines front-load DMRS and additional DMRS with configurable time domain density. Each set of additional DMRS patterns is a repetition of the front-load DMRS.
- the design ideas of front-load DMRS are divided into two categories.
- the first category (type1) adopts the COMB (comb) + OCC (orthogonal superposed code) structure
- the second category (type2) is based on FDM (frequency division multiplexing). Use)+OCC structure.
- front-load DMRS can be configured with up to two OFDM symbols.
- TD-OCC very orthogonal superposition code
- Figures 1 to 4 are examples of front-load DMRS patterns for two configuration types.
- Figure 1 is an example of a front-load DMRS pattern in the case of configuration type 1 and 1 symbol
- Figure 2 is an example of a front-load DMRS pattern in the case of configuration type 1 and 2 symbols
- Figure 3 is an example of configuration type 2.
- Figure 1 is an example diagram of the front-load DMRS pattern in the case of 1 symbol
- Figure 4 is an example diagram of the front-load DMRS pattern in the case of configuration type 2, 2 symbols.
- the NR system uses a DMRS structure that combines front-load DMRS and additional DMRS with configurable time domain density.
- Each set of additional DMRS patterns is a repetition of the front-load DMRS. Therefore, consistent with front-load DMRS, each additional DMRS group can occupy up to two consecutive DMRS symbols. Depending on the specific usage scenario, up to three sets of additional DMRS can be configured in each schedule. The number of Additional DMRS depends on the high-level parameter configuration and the specific scheduling duration.
- Quasi-co-location means that the large-scale parameters of the channel experienced by symbols on one antenna port can be inferred from the channel experienced by symbols on another antenna port.
- the large-scale parameters may include delay spread, average delay, Doppler spread, Doppler shift, average gain, and spatial reception parameters.
- the concept of QCL was introduced with the emergence of Coordinated Multiple Point transmission (CoMP) technology.
- the multiple sites involved in the CoMP transmission process may correspond to multiple sites with different geographical locations or multiple sectors with different antenna panel orientations.
- the spatial differences of each station will lead to differences in large-scale channel parameters of the receiving links from different stations, such as Doppler frequency offset, delay spread, etc.
- the large-scale parameters of the channel will directly affect the adjustment and optimization of the filter coefficients during channel estimation.
- different channel estimation filter parameters should be used to adapt to the corresponding channel propagation characteristics.
- the impact of the above-mentioned spatial differences on the large-scale parameters of the channel is when the UE performs channel estimation and reception detection.
- the so-called QCL of two antenna ports in the sense of certain large-scale parameters means that these large-scale parameters of the two ports are the same. In other words, as long as certain large-scale parameters of the two ports are consistent, regardless of whether there are differences in their actual physical locations or corresponding antenna panel orientations, the terminal can consider that the two ports originate from the same location (i.e., quasi-co-site). site).
- QCL-TypeA ⁇ Doppler frequency shift, Doppler extension, average delay, delay extension ⁇ ; among them, except for the spatial reception parameters, other large-scale parameters are the same; for frequency bands below 6GHz, it may not Requires space to receive parameters.
- QCL-TypeD ⁇ space reception parameter ⁇ ; as mentioned before, since this parameter is mainly targeted at frequency bands above 6GHz, it is treated as a separate QCL type.
- the uplink enhancement supports the repeated transmission mode of the PUSCH/PUCCH channel, which can be sent to different base station TRPs in different uplink beam directions by using TDM multiplexing. Transmission on the uplink channel.
- the bottleneck of the communication system is still the uplink transmission rate and coverage. Therefore, for the system enhancement direction of the Rel-18 standard, the main consideration is to use multiple panel terminals for uplink simultaneous transmission in the Multi-TRP scenario to increase the uplink rate. And further improve the reliability of transmission. Transmission can be scheduled based on one DCI carried by one PDCCH channel, or it can be scheduled based on different DCI carried by different PDCCHs.
- the synchronous transmission scheme currently under consideration is mainly implemented based on SDM (Space Division Multiplexing) or FDM (Frequency Division Multiplexing) multiplexing without Panel. As shown in Figure 5, it is a logic diagram for multi-panel transmission implementation based on a single DCI (single DCI, S-DCI).
- Multi-panel implementation of terminal equipment generally configures multiple physical panels, and different panels may have different capabilities. For example, they may have different numbers of SRS (Sounding Reference Signal, detection reference signal) ports, and the maximum number of supported data transmission layers may not be the same. The same, for example, one panel supports up to layer 2 transmission, and another panel supports up to layer 4 transmission.
- the network scheduler will determine whether the terminal device is currently suitable for simultaneous uplink transmission of multiple panels. If the terminal device is currently suitable for simultaneous uplink transmission of multiple panels and is scheduled at the same time, the network will directly or indirectly indicate the relevant transmission parameters, including the terminal's specific beam indication information. , the number of data layers used for transmission, the allocation of DMRS ports used, and precoding indication information, etc.
- the DMRS port indication issue under S-DCI scheduling that is, how to determine the PUSCH on different panels. Which DMRS port to send to.
- the maximum number of uplink transmission layers currently supported by the protocol is 4, corresponding to the transmission of one codeword. Therefore, another problem in multi-panel enhancement is to support up to 2 codewords in the uplink to achieve flexible mapping.
- the existing uplink or downlink layer mapping scheme when the number of data layers is 1-4, it corresponds to the transmission of one codeword (CW).
- CW codeword
- this configuration makes it difficult for the same MCS to adapt to the channel conditions of different layers. Therefore, when there is a large difference in channel performance between layers, performance loss will occur. Therefore, consider applying 2 CWs for scheduling and transmission of data on layers 2-4, as shown in Figure 6, so that the network can fully schedule according to the inter-layer channel conditions.
- two CWs can be used for scheduling.
- One CW transmits layer 1 data, and the other CW transmits layer 2 data.
- This also facilitates data retransmission scheduling and helps improve system throughput.
- the system mainly uses transmission below layer 4, so it is also beneficial to overall performance optimization.
- the present disclosure proposes a method and device for determining an uplink demodulation reference signal port.
- the communication system used in the embodiment of the present disclosure is first described below.
- FIG. 7 is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure.
- the communication system may include but is not limited to one network side device and one terminal device.
- the number and shape of the devices shown in Figure 7 are only for examples and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more devices may be included.
- the communication system shown in Figure 7 includes a network side device 701 and a terminal device 702 as an example.
- LTE long term evolution
- 5th generation 5th generation
- NR 5th generation new radio
- side link in the embodiment of the present disclosure may also be called a side link or a through link.
- the network side device 701 in the embodiment of the present disclosure is an entity on the network side that is used to transmit or receive signals.
- the network side device 701 can be an evolved base station (evolved NodeB, eNB), a transmission point (transmission reception point, TRP), a next generation base station (next generation NodeB, gNB) in an NR system, or other future mobile communication systems.
- eNB evolved base station
- TRP transmission reception point
- gNB next generation base station
- WiFi wireless fidelity
- the embodiments of the present disclosure do not limit the specific technology and specific equipment form used by the network side equipment.
- the network-side device may be composed of a centralized unit (central unit, CU) and a distributed unit (DU), where the CU may also be called a control unit (control unit), using CU-
- the structure of DU can separate the protocol layers of network-side equipment, such as base stations, with some protocol layer functions placed under centralized control by the CU, while the remaining part or all protocol layer functions are distributed in the DU, and the CU centrally controls the DU.
- the terminal device 702 in the embodiment of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone.
- Terminal equipment can also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc.
- the terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality (augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, smart grid ( Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc.
- the embodiments of the present disclosure do not limit the specific technology and specific equipment form used by the terminal equipment.
- FIG. 8 is a schematic flowchart of a method for determining an uplink demodulation reference signal port provided by an embodiment of the present disclosure. It should be noted that the uplink demodulation reference signal port determination method of the embodiment of the present disclosure can be executed by a terminal device having a multi-antenna panel panel. As shown in Figure 8, the method may include but is not limited to the following steps:
- step 801 the uplink simultaneous transmission STxMP (Simultaneous transmission via multi-Panel, simultaneous transmission through multiple panels) in the SDM mode based on a single DCI schedule is received, and the network side device receives multiple instructions assigned to the terminal device according to the DMRS port allocation table. DMRS port allocation information for the DMRS port.
- the DMRS port allocation information is used to determine the associated PUSCH corresponding to different panels using different beams (panel/TRP/TCI (transmission configuration indication state, transmission configuration indication) state) for different TRPs.
- DMRS port information corresponding to the transmission timing.
- different panels use DMRS port information corresponding to PUSCH transmission opportunities on different beams for different transmitting and receiving point TRPs, and may belong to the same code division multiplexing CDM group or different CDM groups. That is, different panels perform PUSCH transmissions for different TRPs, and these PUSCH transmissions use different beams.
- Each PUSCH may include one or more PUSCH transmission opportunities, and the network side device may configure DMRS port information for each PUSCH transmission opportunity.
- the PUSCH transmission timings in multiple PUSCHs can be the same or different; the network side device can configure corresponding DMRS port information for the PUSCH transmission timings of each PUSCH.
- different PUSCHs correspond to the same PUSCH transmission opportunities. In other embodiments, different PUSCHs correspond to different PUSCH transmission opportunities.
- the indication of the beam includes an indication method based on unified TCI (unified TCI architecture), and also includes using spatial relationship information (Spatial Relation Info) indication when there is no unified TCI indication.
- unified TCI unified TCI architecture
- spatial relationship information Spatial Relation Info
- the terminal device when the terminal device receives the DMRS port allocation information allocated by the network side device to the terminal device, it can determine based on the DMRS port allocation information that PUSCH is used in different panels for different sending and receiving points TRP. DMRS port information configured for PUSCH transmission timing associated with different beams.
- DMRS port allocation information used to indicate multiple DMRS ports is allocated to a multi-panel-based terminal device to instruct the terminal device to associate the PUSCH on different beams with different panels for different transmitting and receiving points TRP.
- the DMRS port information corresponding to the respective transmission opportunities can be enhanced to consider the flexible allocation instructions of DMRS ports that can support single-user multiple input and output (SU-MIMO) and multi-user multiple input and output (MU-MIMO) in the SDM transmission multiplexing mode. , thereby providing a solution to support simultaneous uplink transmission of multiple panels based on a single DCI, and solving how to support higher throughput and more reliable uplink transmission through multiple TRPs or panels in the uplink enhancement of version Rel-18. Transmission performance issues.
- SU-MIMO single-user multiple input and output
- MU-MIMO multi-user multiple input and output
- the antenna port indication field in DCI signaling may be used to indicate the total number of data layers (that is, the RANK number).
- the "antenna ports" indication field in DCI signaling is used to indicate the total number of data layers, that is, the RANK number.
- RANK is only for the allocation of RANK>1 in the uplink DMRS port allocation table.
- the RANK combinations on different panels are determined by default or predefined methods, and the DMRS port allocation in different beam directions can be specifically determined.
- FIG. 9 is a schematic flowchart of another method for determining an uplink demodulation reference signal port provided by an embodiment of the present disclosure. It should be noted that the uplink demodulation reference signal port determination method of the embodiment of the present disclosure can be executed by a terminal device having a multi-antenna panel panel. As shown in Figure 9, the method may include but is not limited to the following steps:
- step 901 uplink simultaneous transmission of STxMP in SDM mode based on single DCI scheduling is performed, and DMRS port allocation information indicating multiple DMRS ports allocated by the network side device to the terminal device according to the DMRS port allocation table is received.
- the DMRS port allocation information is used to determine the DMRS port information corresponding to the PUSCH transmission opportunities corresponding to different panels using different beams (panel/TRP/TCI state) for different TRPs; wherein , Different panels use PUSCH transmission opportunities on different beams for different transmitting and receiving points.
- the corresponding DMRS port information belongs to the same code division multiplexing CDM group or belongs to different CDM groups.
- the single DCI involved in the embodiment of the present disclosure may also include an antenna port indication field, which is used to indicate the total number of transmission ranks RANK used to transmit PUSCH, and the total number of RANK is greater than 1.
- step 902 based on the antenna port indication field and DMRS port allocation information, determine the DMRS port information configured for PUSCH in different panels facing different transmitting and receiving points TRP using PUSCH transmission opportunities associated with different beams.
- each PUSCH may include one or more PUSCH transmission opportunities, and the network side device may configure DMRS port information for each PUSCH transmission opportunity. That is to say, the PUSCH transmission timings in multiple PUSCHs can be the same or different; the network side device can configure corresponding DMRS port information for the PUSCH transmission timings of each PUSCH.
- different PUSCHs correspond to the same PUSCH transmission opportunities. In other embodiments, different PUSCHs correspond to different PUSCH transmission opportunities.
- the DMRS port allocation information may at least include a set of DMRS ports allocated for the terminal device.
- the default method can be used to determine the number of DMRS ports allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity according to the DMRS port set; where, two PUSCH transmission opportunities The opportunity does not support the first RANK combination, and the total RANK number indicated by the antenna port indication field is 2 or 4.
- the first RANK combination involved in the embodiment of the present disclosure is a RANK combination of 1+3 mode or 3+1 mode.
- the RANK combination actually supported by the PUSCH transmission corresponding to the two panel/TRP/TCI states can be 1+1 (the total number of layers is 2), 1+2 (the total number of layers is 3), 2+1 (the total number of layers is 3), 2+2 (the total number of layers is 4).
- the total RANK number indicated by the antenna port indication field is 2 or 4
- the default method can be used to determine the allocation to the first PUSCH transmission opportunity (such as panel #1) and the second PUSCH transmission opportunity (panel #2) Number of DMRS ports.
- the RANK combination actually supported by the PUSCH transmission corresponding to the two panels/TRP/TCI is 1+1 (the total number of layers is 2), 1+2 (the total number of layers is 3), 2+1 (the total number of layers is 3), 2+2 (the total number of layers is 4), when the total number of RANK indicated in the antenna port indication field is 2 or 4, the default The method determines the number of DMRS ports corresponding to panel#1 and panel#2 allocated in sequence.
- the DMRS port assigned to the first PUSCH transmission opportunity (such as panel#1) is determined by default to be ⁇ 2 ⁇ , and the DMRS port assigned to the second The DMRS port of the PUSCH transmission opportunity (panel#2) is ⁇ 3 ⁇ .
- PUSCH uses different beams in different panels for different transmitting and receiving points TRP.
- the associated PUSCH transmission opportunities can be two, and the DMRS port allocation information can at least include the DMRS port set allocated for the terminal device. And there is a mapping relationship between the index of the DMRS port in the DMRS port set and the RANK combination supported by multiple PUSCH transmission opportunities.
- a default predefined method can be used to determine the number of DMRS ports corresponding to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity according to the DMRS port set and the mapping relationship; where , the two PUSCH transmission opportunities do not support the first RANK combination, and the total number of RANK indicated by the antenna port indication field is 3.
- the RANK combination actually supported by the PUSCH transmission corresponding to the two panel/TRP/TCI states can be 1+1 (the total number of layers is 2), 1+2 (the total number of layers is 3), 2+1 (the total number of layers is 3), 2+2 (the total number of layers is 4).
- the total RANK number indicated by the antenna port indication field is 3
- a default predefined method may be used to determine the number of DMRS ports corresponding to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity.
- Index 0-2 can be predefined by default (that is, the Value value is ⁇ 0, 1 , 2 ⁇ ) indicates the RANK combination of 1+2, index3-5 (that is, the Value value is ⁇ 3, 4, 5 ⁇ ) corresponds to the RANK combination of 2+1, and the ports are allocated sequentially.
- the Value value is 0, the corresponding DMRS port is ⁇ 0,1,2 ⁇ , the Value value ⁇ 0 ⁇ is predefined by default to indicate the RANK combination of 1+2, and the ports are allocated sequentially, so the first PUSCH transmission can be determined
- the DMRS port of the opportunity (panel#1) is ⁇ 0 ⁇
- the DMRS port of the second PUSCH transmission opportunity (panel#2) is determined to be ⁇ 1, 2 ⁇ .
- the Value value is 4, the corresponding DMRS port is ⁇ 0,1,2 ⁇ , the Value value ⁇ 4 ⁇ is predefined by default to indicate the RANK combination of 2+1, and the ports are allocated sequentially. Therefore, the first PUSCH can be determined
- the DMRS port of the transmission opportunity (panel#1) is ⁇ 0,1 ⁇
- the DMRS port of the second PUSCH transmission opportunity (panel#2) is determined to be ⁇ 2 ⁇ .
- each element in the above-mentioned Table 1 exists independently. These elements are exemplarily listed in the same table, but it does not mean that all elements in the table must be based on the same time as shown in the table. exist. The value of each element does not depend on the value of any other element in Table 1. Therefore, those skilled in the art can understand that the value of each element in Table 1 is an independent embodiment. It should be noted that the embodiments of the present disclosure include multiple tables, and each of them is similar to Table 1. It is a combination of multiple independent embodiments into the same table, and each of these tables is An element should also be considered an independent embodiment.
- the DMRS port allocation information at least includes: a DMRS port set allocated to the terminal device and additional indication information.
- the additional indication information is used to indicate the mapping relationship between the index of the DMRS port in the DMRS port set and the RANK combination supported by multiple PUSCH transmission opportunities.
- PUSCH uses different PUSCH transmission timing configurations on different beams for different transmitting and receiving points TRP in different panels.
- the possible implementation method can be as follows: According to the DMRS port set and mapping relationship, determine the number of DMRS ports that sequentially allocate multiple DMRS ports to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity; where, the two PUSCH transmission opportunities are not The first RANK combination is supported, and the total number of RANK indicated by the antenna port indication field is 3.
- the RANK combination actually supported by the PUSCH transmission corresponding to the two panel/TRP/TCI states can be 1+1 (the total number of layers is 2), 1+2 (the total number of layers is 3), 2+1 (the total number of layers is 3), 2+2 (the total number of layers is 4).
- the total RANK number indicated by the antenna port indication field is 3
- the same number of rows can be added to the DMRS port allocation table, and a column of information can be added.
- this column of information can be defined to indicate different RANK combinations. It is 1+2 or 2+1, and the DMRS ports corresponding to different panels are sequentially corresponding.
- a column of additional indication information is added to the DMRS port allocation table, and the additional indication information is used to indicate whether the RANK combination is 1+2 or 2+1.
- the corresponding information indication can clearly indicate index 0-2 (that is, the Value is ⁇ 0, 1, 2 ⁇ ) indicating the combination of 1+2, and index 3-5 (that is, the Value is ⁇ 3, 4, 5 ⁇ ) corresponds to indicating the combination of 2+1.
- the Value value is 0, the corresponding DMRS port is ⁇ 0,1,2 ⁇ , the Value value ⁇ 0 ⁇ corresponds to the RANK combination indicating 1+2, and the DMRS ports corresponding to different panels are sequentially corresponding, therefore, it can be determined
- the DMRS port of the first PUSCH transmission opportunity (such as panel#1) is ⁇ 0 ⁇ , and the DMRS port of the second PUSCH transmission opportunity (panel#2) is determined to be ⁇ 1, 2 ⁇ .
- the Value value is 5, the corresponding DMRS ports are ⁇ 3, 4, 5 ⁇ , the Value value ⁇ 5 ⁇ corresponds to the RANK combination indicating 2+1, and the DMRS ports corresponding to different panels are sequentially corresponding. Therefore, it can
- the DMRS port for the first PUSCH transmission opportunity (panel#1) is determined to be ⁇ 3,4 ⁇
- the DMRS port for the second PUSCH transmission opportunity (panel#2) is determined to be ⁇ 5 ⁇ .
- the DMRS port allocation information at least includes: a DMRS port set allocated to the terminal device and additional indication information.
- the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, and the DMRS port occupied by the first PUSCH transmission opportunity belongs to the DMRS port set.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels facing different transmitting and receiving points TRP; the PUSCH is determined according to the antenna port indication field and DMRS port allocation information.
- Possible implementation methods for using DMRS port information configured by PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP can be as follows: DMRS occupied by the first PUSCH transmission opportunity indicated by the DMRS port set and additional indication information port, respectively determine the DMRS port information corresponding to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity; wherein, the two PUSCH transmission opportunities do not support the first RANK combination, and the total RANK number indicated by the antenna port indication field is 3.
- the RANK combination actually supported by the PUSCH transmission corresponding to the two panel/TRP/TCI states can be 1+1 (the total number of layers is 2), 1+2 (the total number of layers is 3), 2+1 (the total number of layers is 3), 2+2 (the total number of layers is 4).
- the total RANK number indicated by the antenna port indication field is 3
- the same number of rows can be added to the DMRS port allocation table, and a column of information can be added.
- this column of information can be defined to indicate the first DMRS port of PUSCH transmission opportunity (such as panel#1). It can be understood that this method is more flexible.
- the corresponding number of DCI bits in the increased DMRS port allocation table remains unchanged and does not increase overhead.
- the additional indication information is used to indicate the DMRS port of the first PUSCH transmission opportunity (such as panel #1), so that index 0-5 (That is, the Value value is ⁇ 0,1,2,3,4,5 ⁇ ) corresponding to the RANK combination of 1+2, and index6-11 (that is, the Value value is ⁇ 6,7,8,9,10,11 ⁇ ) corresponds to Indicates the 2+1 RANK combination.
- the Value value is 5, the corresponding DMRS ports are ⁇ 3,4,5 ⁇ , the Value value ⁇ 5 ⁇ corresponds to indicating the RANK combination of 1+2, and additional indication information is used to indicate the first PUSCH transmission opportunity (such as panel#).
- the DMRS port of 1) is ⁇ 4 ⁇ , then the DMRS port of the first PUSCH transmission opportunity (such as panel#1) can be determined as ⁇ 4 ⁇ , and the DMRS port of the second PUSCH transmission opportunity (panel#2) can be determined as ⁇ 3,5 ⁇ .
- the Value value is 6, the corresponding DMRS port is ⁇ 0,1,2 ⁇ , the Value value ⁇ 6 ⁇ corresponds to the RANK combination indicating 2+1, and the additional indication information is used to indicate the first PUSCH transmission opportunity (such as panel If the DMRS port of #1) is ⁇ 0,1 ⁇ , then the DMRS port of the first PUSCH transmission opportunity (such as panel#1) can be determined as ⁇ 0,1 ⁇ , and the second PUSCH transmission opportunity (panel#2) can be determined.
- the DMRS port is ⁇ 2 ⁇ .
- the RANK combination actually supported by the PUSCH transmission corresponding to the two panels/TRP/TCI is 1+1 (the total number of layers is 2), 1+2 (The total number of layers is 3), 2+1 (the total number of layers is 3), 2+2 (the total number of layers is 4), corresponding to the DMRS port allocation of RANK3, the same number of rows need to be added to the DMRS port allocation table , and adopt the following solution: the default mode and add the indicated information definition (such as adding a column).
- the added column information can be used to indicate whether the RANK combination is 1+2 or 2+1, and different panels correspond to The DMRS ports are sequentially corresponding; as another example, the added column information can be used to directly indicate the DMRS port of panel#1 (more flexible); the number of DCI bits corresponding to the added DMRS table remains unchanged and does not increase overhead. .
- PUSCH can be associated with two PUSCH transmission opportunities on different beams in different panels facing different transmitting and receiving points TRP, and the DMRS port allocation information at least includes a set of DMRS ports allocated for the terminal device.
- the DMRS port allocation information at least includes a set of DMRS ports allocated for the terminal device.
- the default method is used to determine the number of DMRS ports allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity in sequence; among them, the two PUSCH transmission opportunities support the first RANK combination, and the antenna
- the total number of RANK indicated by the port indication field is 2.
- the PUSCH corresponding to the two panel/TRP/TCI states The RANK combinations actually supported by the transmission can be 1+1 (total number of layers is 2), 1+2 (total number of layers is 3), 2+1 (total number of layers is 3), 2+2 (total number of layers is 4) ), 1+3 (the total number of layers is 4), 3+1 (the total number of layers is 4).
- the total RANK number indicated by the antenna port indication field is 2
- the default method can be used to determine the allocation to the first PUSCH transmission opportunity (such as panel #1) and the second PUSCH transmission opportunity (panel #2).
- the DMRS port allocated to the first PUSCH transmission opportunity (such as panel #1) is determined to be ⁇ 2 ⁇ , and the DMRS port allocated to the second PUSCH transmission opportunity is ⁇ 2 ⁇ .
- the DMRS port of the opportunity (panel#2) is ⁇ 3 ⁇ .
- PUSCH can be associated with two PUSCH transmission opportunities using different beams in different panels facing different transmitting and receiving points TRP, and the DMRS port allocation information at least includes the DMRS port set allocated for the terminal device, and There is a mapping relationship between the index of the DMRS port in the DMRS port set and the RANK combination supported by multiple PUSCH transmission opportunities.
- the DMRS port allocation information based on the antenna port indication field and DMRS port allocation information, it is determined that PUSCH uses different PUSCH transmission timing configurations on different beams for different transmitting and receiving points TRP in different panels.
- the possible implementation method can be as follows: According to the DMRS port set and mapping relationship, the default predefined method is used to determine the number of DMRS ports corresponding to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity; among them, the two PUSCH transmission opportunities The first RANK combination is supported, and the total number of RANKs indicated by the antenna port indication field is 3 or 4.
- the PUSCH corresponding to the two panel/TRP/TCI states The RANK combinations actually supported by the transmission can be 1+1 (total number of layers is 2), 1+2 (total number of layers is 3), 2+1 (total number of layers is 3), 2+2 (total number of layers is 4) ), 1+3 (the total number of layers is 4), 3+1 (the total number of layers is 4).
- a default predefined method can be used to determine the number of DMRS ports corresponding to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity.
- index 0-2 can be predefined by default (that is, the Value value is ⁇ 0, 1, 2 ⁇ ) to indicate the RANK combination of 1+2, index 3 -5 (that is, Value is ⁇ 3, 4, 5 ⁇ ) corresponds to the RANK combination of 2+1, and the ports are allocated sequentially.
- index0-1 i.e. Value value is ⁇ 0, 1 ⁇
- index2 i.e. The Value value is ⁇ 2 ⁇
- index3-5 i.e. the Value value being ⁇ 3, 4, 5 ⁇
- the DMRS port allocation information at least includes: a DMRS port set allocated to the terminal device and additional indication information.
- the additional indication information is used to indicate the mapping relationship between the index of the DMRS port in the DMRS port set and the RANK combination supported by multiple PUSCH transmission opportunities.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP.
- the possible implementation method can be as follows: according to the DMRS port set and the mapping relationship, determine the number of DMRS ports that sequentially allocate multiple DMRS ports to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity; where, the two PUSCH transmission opportunities The first RANK combination is supported, and the total number of RANKs indicated by the antenna port indication field is 3 or 4.
- the PUSCH corresponding to the two panel/TRP/TCI states The RANK combinations actually supported by the transmission can be 1+1 (total number of layers is 2), 1+2 (total number of layers is 3), 2+1 (total number of layers is 3), 2+2 (total number of layers is 4) ), 1+3 (the total number of layers is 4), 3+1 (the total number of layers is 4).
- the total RANK number indicated by the antenna port indication field is 3 or 4
- the same number of rows can be added to the DMRS port allocation table, and a column of information can be added.
- the column information can be defined to indicate differentiation.
- the combination of RANK3 is 1+2 or 2+1
- the combination of RANK4 is 2+2, 1+3 or 3+1.
- the DMRS ports corresponding to different panels are sequentially corresponding.
- the DMRS port allocation information may include at least: a DMRS port set allocated to the terminal device and additional indication information.
- the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, and the DMRS port occupied by the first PUSCH transmission opportunity belongs to the DMRS port set.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP.
- the antenna port indication field and DMRS port allocation information it is determined that the DMRS port information configured for PUSCH in different panels facing different transmitting and receiving points TRP uses the PUSCH transmission opportunities associated with different beams.
- the implementation method can be as follows: according to the DMRS port set and the DMRS port occupied by the first PUSCH transmission opportunity indicated by the additional indication information, determine the DMRS port information corresponding to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity respectively; where , the two PUSCH transmission opportunities support the first RANK combination, and the total number of RANK indicated by the antenna port indication field is 3 or 4.
- the RANK combinations actually supported by the transmission can be 1+1 (total number of layers is 2), 1+2 (total number of layers is 3), 2+1 (total number of layers is 3), 2+2 (total number of layers is 4) ), 1+3 (the total number of layers is 4), 3+1 (the total number of layers is 4).
- the total RANK number indicated by the antenna port indication field is 3 or 4
- the same number of rows can be added to the DMRS port allocation table, and a column of information can be added.
- the column information can be defined to indicate the DMRS port of a PUSCH transmission opportunity (such as panel#1). It can be understood that this method is more flexible. The corresponding number of DCI bits in the increased DMRS port allocation table remains unchanged and does not increase overhead.
- the RANK combination of 1+3 mode or 3+1 mode is supported (such as flexible allocation mapping for 1 codeword and 2 codewords)
- the actually supported RANK combination is 1+1, 1+2, 2+1, 2+2, 1+3, 3+1
- the actual supported RANK combinations are 1+1, 1+2, 2+1, 2+2, 1+3, 3+1, corresponding to the DMRS port allocation of RANK3 and 4, you need to add different row numbers in the table, and default or add a definition (add a column), where the increase
- the column information can be used to indicate whether the RANK3 combination is 1+2 or 2+1, and the RANK4 combination is 2+2, 1+3 or 3+1, or the added column information can be used to directly indicate panel#1 DMRS port (more flexible); the number of DCI bits corresponding to the added DMRS table remains unchanged and does not increase overhead.
- the specific allocation of the RANK combination can also be obtained through joint analysis of the SRI/TPMI domain and the antenna port (antenna port) indication domain.
- the RANK combination can be obtained through 1 or 2 TPMI indication fields in DCI.
- the RANK combination can be obtained through 1 or 2 TPMI indication fields in DCI.
- One or two SRI fields are combined to obtain the RANK combination, and combined with the port information indicated by the DMRS indication field of the antenna port, the DMRS port information on different panels can be obtained. Please refer to FIG.
- the uplink demodulation reference signal port determination method of the embodiment of the present disclosure can be executed by a terminal device having a multi-antenna panel panel. As shown in Figure 10, the method may include but is not limited to the following steps:
- step 1001 uplink simultaneous transmission of STxMP in SDM mode based on single DCI scheduling is performed, and DMRS port allocation information indicating multiple DMRS ports allocated by the network side device to the terminal device according to the DMRS port allocation table is received.
- the DMRS port allocation information is used to determine the DMRS port information corresponding to the PUSCH transmission opportunities corresponding to different panels using different beams (panel/TRP/TCI state) for different TRPs; wherein , Different panels use PUSCH transmission opportunities on different beams for different transmitting and receiving points.
- the corresponding DMRS port information belongs to the same code division multiplexing CDM group or belongs to different CDM groups.
- each PUSCH may include one or more PUSCH transmission opportunities, and the network side device may configure DMRS port information for each PUSCH transmission opportunity. That is to say, the PUSCH transmission timings in multiple PUSCHs can be the same or different; the network side device can configure corresponding DMRS port information for the PUSCH transmission timings of each PUSCH.
- different PUSCHs correspond to the same PUSCH transmission opportunities. In other embodiments, different PUSCHs correspond to different PUSCH transmission opportunities.
- the single DCI involved in the embodiment of the present disclosure also includes at least one SRI and/or TPMI indication field, and an antenna port indication field, where at least one SRI and/or TPMI indication field is used to indicate multiple PUSCH transmission opportunities.
- the corresponding PUSCH actually transmits the corresponding RANK combination; the antenna port indication field is used to indicate the total DMRS port set allocated to the terminal device.
- the SRI and TPMI fields need to be used to jointly indicate the RANK combination.
- the SRI field is used to indicate the RANK combination.
- step 1002 according to at least one SRI and/or TPMI indication field and the antenna port indication field, determine the DMRS port information configured for PUSCH using different PUSCH transmission opportunities on different beams for different transmitting and receiving points TRP in different panels.
- the above-mentioned at least one SRI and/or TPMI indication field may include two SRI and/or TPMI indication fields, where the first SRI and/or TPMI indication field is used to indicate the RANK number corresponding to the first PUSCH transmission opportunity; the second The SRI and/or TPMI indication field is used to indicate the RANK number corresponding to the second PUSCH transmission opportunity.
- the configured DMRS port information can be as follows: according to the RANK number corresponding to the first PUSCH transmission opportunity indicated by the first SRI and/or TPMI indication field and the second number indicated by the second SRI and/or TPMI indication field.
- the RANK number corresponding to each PUSCH transmission opportunity determines the RANK combination supported by the two PUSCH transmission opportunities; the corresponding allocation is determined based on the RANK combination supported by the two PUSCH transmission opportunities and the set of DMRS ports allocated to the terminal device indicated by the antenna port indication field.
- DMRS port information for the first PUSCH transmission opportunity and the second PUSCH transmission opportunity is provided.
- the first SRI and/or TPMI can indicate the RANK number corresponding to the first PUSCH transmission opportunity (such as Panel#1/TCI1/TRP1)
- the second SRI And/or TPMI can indicate the number of RANK corresponding to the second PUSCH transmission opportunity (such as Panel#2/TCI2/TRP2).
- the RANK numbers indicated by the two SRI and/or TPMI indication fields can be used, combined with the DMRS port set allocated to the terminal equipment indicated by the antenna port indication field, to determine the corresponding allocation to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity.
- DMRS port information of PUSCH transmission timing such as Panel#1/TCI1/TRP1
- the second SRI And/or TPMI can indicate the number of RANK corresponding to the second PUSCH transmission opportunity
- the PUSCH transmission opportunities associated with different panels using different beams for different transmitting and receiving points TRP can be two, and the above-mentioned at least one SRI and/or TPMI indication field includes an SRI and/or TPMI indication field, where the code point of the one SRI and/or TPMI indication field corresponds to indicating two valid SRIs and/or TPMIs, where the first valid SRI and/or TPMI is used to indicate the first PUSCH transmission The number of RANK corresponding to the opportunity. The second valid SRI and/or TPMI is used to indicate the number of RANK corresponding to the second PUSCH transmission opportunity.
- the configured DMRS port information can be as follows: according to the RANK number corresponding to the first PUSCH transmission opportunity indicated by the first valid SRI and/or TPMI, the second valid SRI and/or TPMI indicated by the RANK number.
- the RANK number corresponding to each PUSCH transmission opportunity and the set of DMRS ports allocated to the terminal device indicated by the antenna port indication field are used to determine the DMRS ports allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity using a predefined method. information.
- one SRI codepoint (code point) and/or TPMI codepoint indicates two valid SRI and/or TPMI.
- one SRI codepoint can be used to indicate two valid SRIs.
- the first valid SRI can be used to indicate the RANK number corresponding to the first PUSCH transmission opportunity.
- the second valid SRI is used to indicate the RANK number corresponding to the second PUSCH transmission opportunity.
- an SRI codepoint (codepoint) and a TPMI codepoint can be used to jointly indicate a RANK combination.
- An SRI codepoint (codepoint) and a TPMI codepoint correspondingly indicate two valid SRIs and TPMIs, where The first valid SRI and TPMI jointly indicate the number of RANK corresponding to the first PUSCH transmission opportunity, and the second valid SRI and TPMI jointly indicate the number of RANK corresponding to the second PUSCH transmission opportunity.
- the indication field indicates the set of DMRS ports allocated to the terminal equipment.
- the DMRS ports are allocated by default starting from the smaller PUSCH transmission opportunity number (such as panel #1) in a predefined manner, so that the DMRS allocation on different panels can be obtained correspondingly.
- the DMRS port allocation information at least includes additional indication information
- the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, where the DMRS port occupied by the first PUSCH transmission opportunity belongs to DMRS port set.
- it is determined based on at least one SRI and/or TPMI indication field and the antenna port indication field that PUSCH is used in different panels for different transmitting and receiving points TRP to use PUSCH transmission opportunities associated with different beams.
- Possible implementations of the configured DMRS port information can be as follows: according to the RANK number corresponding to the first PUSCH transmission opportunity indicated by the first valid SRI and/or TPMI, the second valid SRI and/or TPMI indicated by the RANK number.
- the RANK number corresponding to each PUSCH transmission opportunity, the set of DMRS ports allocated to the terminal device indicated by the antenna port indication field, and the DMRS ports occupied by the first PUSCH transmission opportunity indicated by the additional indication information are determined to be allocated to the first PUSCH respectively.
- DMRS port information of the transmission opportunity and the second PUSCH transmission opportunity are determined to be allocated to the first PUSCH respectively.
- the same number of rows can be added to the DMRS port allocation table, and a column of information can be added.
- the column information can be defined to indicate the DMRS of the first PUSCH transmission opportunity (such as panel #1/TCI1/TRP1). port. It can be understood that this method is more flexible. The corresponding number of DCI bits in the increased DMRS port allocation table remains unchanged and does not increase overhead.
- the specific allocation of RANK combinations is obtained through joint analysis of the SRI/TPMI domain and antenna port domain.
- the RANK combination can be obtained through one or two TPMI indication fields in DCI.
- the RANK combination can be obtained through DCI Obtained from one or two SRI fields in the antenna port, and combined with the port information indicated by the DMRS indication field of the antenna port, the DMRS port information on different panels can be obtained according to the following implementation.
- Implementation method 1 If there are two TPMI/SRI indication fields, the first SRI/TPMI field indicates the RANK number corresponding to Panel#1/TCI1/TRP1, and the second SRI/TPMI field indicates the Panel#2 The number of RANK corresponding to /TCI2/TRP2.
- Implementation method 2 If there is only one TPMI/SRI indication domain, then one SRIcodepoint/TPMI codepoint indicates two valid TPMI/SRIs.
- add predefined rules For example, you can allocate DMRS ports from smaller ones such as panel #1 by default in a predefined manner, corresponding to the DMRS allocation on different panels. You can also add predefined rules, such as: default mode and add indicated information definitions (such as adding a column in the DMRS port allocation table). The added column information can be a)
- the allocation of DMRS ports for different TRPs can be within the same CDM group or from different CDM groups.
- the RANK combinations supported by different codewords are also different. This disclosure can realize different DMRS port indications corresponding to multi-panel transmission under S-DCI without increasing the overhead of existing protocols.
- DMRS port allocation information indicating multiple DMRS ports can be allocated to a multi-panel-based terminal device, so that the terminal device can determine to associate different panels with different beams for different transmitting and receiving points TRP.
- the DMRS port information corresponding to the PUSCH transmission timing on the SDM transmission multiplexing mode can be used to flexibly allocate DMRS ports that can support single-user multiple input and output (SU-MIMO) and multi-user multiple input and output (MU-MIMO).
- SU-MIMO single-user multiple input and output
- MU-MIMO multi-user multiple input and output
- the indicated enhancement provides a solution to support simultaneous uplink transmission of multiple panels based on a single DCI, solving how to support higher throughput and simultaneous uplink transmission through multiple TRPs or panels in the uplink enhancement of version Rel-18. More reliable transmission performance issues.
- the above embodiment describes the implementation of the uplink demodulation reference signal port determination method of the embodiment of the present disclosure from the terminal device side.
- the embodiment of the present disclosure also proposes a method for determining the uplink demodulation reference signal port.
- the implementation of the method for determining the uplink demodulation reference signal port will be described below from the network side device side. It should be noted that for the same parameters, the explanations are corresponding in the implementation of the terminal device and the network side device, so the same parameters will not be repeatedly explained.
- FIG. 11 is a schematic flowchart of yet another method for determining an uplink demodulation reference signal port provided by an embodiment of the present disclosure.
- the uplink demodulation reference signal port determination method in the embodiment of the present disclosure can be executed by the network side device. As shown in Figure 11, the method may include but is not limited to the following steps:
- step 1101 DMRS port allocation information indicating multiple DMRS ports is allocated to a terminal device having a multi-antenna panel panel according to the demodulation reference signal DMRS port allocation table.
- a single downlink control information DCI is sent to the terminal device; the single DCI includes DMRS port allocation information.
- the DMRS port allocation information is used to determine the association corresponding to different panels and the physical uplink shared channels on different beams for different transmitting and receiving points.
- TRP uses different beams.
- DMRS port information corresponding to PUSCH transmission timing; among them, different panels use PUSCH transmission timing on different beams for different transmitting and receiving points TRP.
- each PUSCH may include one or more PUSCH transmission opportunities, and the network side device may configure DMRS port information for each PUSCH transmission opportunity. That is to say, the PUSCH transmission timings in multiple PUSCHs can be the same or different; the network side device can configure corresponding DMRS port information for the PUSCH transmission timings of each PUSCH.
- different PUSCHs correspond to the same PUSCH transmission opportunities. In other embodiments, different PUSCHs correspond to different PUSCH transmission opportunities.
- a single DCI also includes an antenna port indication field.
- the antenna port indication field is used to indicate the total transmission rank RANK number corresponding to the transmission of PUSCH, and the total RANK number is greater than 1.
- the terminal device can determine the DMRS port configured for PUSCH in different panels facing different transmitting and receiving points TRP using PUSCH transmission opportunities associated with different beams according to the antenna port indication field and DMRS port allocation information. information. Wherein, this step can be implemented using any implementation method among the embodiments of the present disclosure. The embodiments of the present disclosure do not limit this and will not be described again.
- PUSCH uses two associated PUSCH transmission opportunities on different beams in different panels for different transmitting and receiving points TRP, and the DMRS port allocation information at least includes a set of DMRS ports allocated for the terminal device.
- the terminal device can determine the number of DMRS ports allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity in a default manner according to the DMRS port set; wherein, two PUSCH The transmission opportunity does not support the first RANK combination, and the total RANK number indicated by the antenna port indication field is 2 or 4.
- the "antenna ports" indication field in DCI signaling is used to indicate the total number of data layers, that is, the RANK number.
- PUSCH uses two associated PUSCH transmission opportunities on different beams in different panels for different transmitting and receiving points TRP
- the DMRS port allocation information at least includes a set of DMRS ports allocated to the terminal equipment
- the DMRS There is a mapping relationship between the index of the DMRS port in the port set and the RANK combination supported by multiple PUSCH transmission opportunities.
- the terminal device can use a default predefined method to determine the number of DMRS ports allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity based on the DMRS port set and the mapping relationship. ;
- the two PUSCH transmission opportunities do not support the first RANK combination, and the total number of RANK indicated by the antenna port indication field is 3.
- the DMRS port allocation information at least includes: a DMRS port set allocated to the terminal device and additional indication information.
- the additional indication information is used to indicate the mapping relationship between the index of the DMRS port in the DMRS port set and the RANK combination supported by multiple PUSCH transmission opportunities.
- the terminal device can determine the number of DMRS ports to sequentially allocate multiple DMRS ports to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity according to the DMRS port set and mapping relationship; wherein, The two PUSCH transmission opportunities do not support the first RANK combination, and the total RANK number indicated by the antenna port indication field is 3.
- the DMRS port allocation information at least includes: a DMRS port set allocated to the terminal device and additional indication information.
- the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, and the DMRS port occupied by the first PUSCH transmission opportunity belongs to the DMRS port set.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP; the terminal equipment can determine the first one according to the DMRS port set and the additional indication information.
- the DMRS ports occupied by the PUSCH transmission opportunities respectively determine the DMRS port information allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity; among them, the two PUSCH transmission opportunities do not support the first RANK combination, and the antenna port indication field
- the total number of RANK indicated is 3.
- a single DCI further includes at least one sounding reference signal resource indication SRI and/or precoding matrix indication TPMI indication field, and an antenna port indication field, wherein at least one SRI and/or TPMI indication field is represented by It is used to indicate the RANK combination corresponding to the actual PUSCH transmission corresponding to multiple PUSCH transmission opportunities; the antenna port indication field is used to indicate the total DMRS port set allocated to the terminal equipment.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP, and at least one SRI and/or TPMI indication field includes two SRI and/or TPMI indication fields.
- the first SRI and/or TPMI indication field is used to indicate the number of RANK corresponding to the first PUSCH transmission opportunity
- the second SRI and/or TPMI indication field is used to indicate the number of RANK corresponding to the second PUSCH transmission opportunity.
- the terminal device may use the RANK number corresponding to the first PUSCH transmission opportunity indicated by the first SRI and/or TPMI indication field and the RANK number indicated by the second SRI and/or TPMI indication field.
- the RANK number corresponding to the two PUSCH transmission opportunities determines the RANK combination supported by the two PUSCH transmission opportunities, and is determined respectively based on the RANK combination supported by the two PUSCH transmission opportunities and the set of DMRS ports allocated to the terminal device indicated by the antenna port indication field.
- the DMRS port information allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity corresponds to the DMRS port information allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity.
- PUSCH is used in different panels for different transmitting and receiving points TRP.
- the associated PUSCH transmission opportunities on different beams are two.
- At least one SRI and/or TPMI indication field includes an SRI and/or TPMI indication field.
- the code point of one SRI and/or TPMI indication field corresponds to two valid SRIs and/or TPMIs, where the first valid SRI and/or TPMI is used to indicate the RANK corresponding to the first PUSCH transmission opportunity. number, the second valid SRI and/or TPMI is used to indicate the RANK number corresponding to the second PUSCH transmission opportunity.
- the terminal device may use the RANK number corresponding to the first PUSCH transmission opportunity indicated by the first valid SRI and/or TPMI, and the RANK number corresponding to the first PUSCH transmission opportunity indicated by the second valid SRI and/or TPMI.
- the RANK numbers corresponding to the two PUSCH transmission opportunities, and the set of DMRS ports allocated to the terminal equipment indicated by the antenna port indication field, are determined using a predefined method to determine the DMRS corresponding to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity. Port information.
- the DMRS port allocation information at least includes additional indication information, and the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, where the DMRS port occupied by the first PUSCH transmission opportunity belongs to the DMRS in the port collection.
- the terminal device may use the RANK number corresponding to the first PUSCH transmission opportunity indicated by the first valid SRI and/or TPMI, and the RANK number corresponding to the first PUSCH transmission opportunity indicated by the second valid SRI and/or TPMI.
- the RANK numbers corresponding to the two PUSCH transmission opportunities, the set of DMRS ports allocated to the terminal equipment indicated by the antenna port indication field, and the DMRS ports occupied by the first PUSCH transmission opportunity indicated by the additional indication information are determined to be allocated to the first one respectively.
- DMRS port information of the PUSCH transmission opportunity and the second PUSCH transmission opportunity are determined to be allocated to the first one respectively.
- the network side device can allocate DMRS port allocation information indicating multiple DMRS ports to a multi-panel-based terminal device, so that the terminal device can determine the associated TRP corresponding to different panels facing different sending and receiving points.
- DMRS port information corresponding to the PUSCH transmission timing on different beams, it is possible to consider DMRS that can support single-user multiple input and output (SU-MIMO) and multi-user multiple input and output (MU-MIMO) in the SDM transmission multiplexing mode.
- SU-MIMO single-user multiple input and output
- MU-MIMO multi-user multiple input and output
- the enhancement of the port flexible allocation indication provides a solution to support simultaneous uplink transmission of multiple panels based on a single DCI, and solves how to support simultaneous uplink transmission through multiple TRPs or panels in the uplink enhancement of version Rel-18 to support higher throughput and more reliable transmission performance.
- the methods provided by the embodiments of the present disclosure are introduced from the perspectives of terminal equipment and network side equipment respectively.
- the terminal device and the network side device may include a hardware structure and a software module to implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
- a certain function among the above functions can be executed by a hardware structure, a software module, or a hardware structure plus a software module.
- FIG. 12 is a schematic structural diagram of a communication device 120 provided by an embodiment of the present disclosure.
- the communication device 120 shown in FIG. 12 may include a transceiver module 1201 and a processing module 1202.
- the transceiving module 1201 may include a sending module and/or a receiving module.
- the sending module is used to implement the sending function
- the receiving module is used to implement the receiving function.
- the transceiving module 1201 may implement the sending function and/or the receiving function.
- the communication device 120 may be a terminal device, a device in the terminal device, or a device that can be used in conjunction with the terminal device.
- the communication device 120 may be a network-side device, a device in a network-side device, or a device that can be used in conjunction with the network-side device.
- the communication device 120 is a terminal device: the transceiver module 1201 is used for uplink simultaneous transmission of STxMP in the spatial division multiplexing SDM mode based on a single downlink control information DCI scheduling.
- the receiving network side device has multiple antennas according to the demodulation reference signal DMRS port allocation table.
- the terminal equipment of the panel panel allocates DMRS port allocation information indicating multiple DMRS ports; among them, the DMRS port allocation information is used to determine the timing of PUSCH transmission using the physical uplink shared channel PUSCH on different beams for different panels associated with different sending and receiving points. Corresponding DMRS port information respectively; wherein, different panels use PUSCH transmission timing on different beams for different transmitting and receiving points TRP, and the corresponding DMRS port information belongs to the same code division multiplexing CDM group or to different CDM groups.
- a single DCI also includes an antenna port indication field.
- the antenna port indication field is used to indicate the total transmission rank RANK number corresponding to the transmission of PUSCH.
- the total RANK number is greater than 1; the processing module 1202 determines the number of transmission ranks according to the antenna port.
- the indication domain and DMRS port allocation information are determined as DMRS port information configured for PUSCH in different panels for different transmitting and receiving points TRP using associated PUSCH transmission opportunities on different beams.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP, and the DMRS port allocation information at least includes a set of DMRS ports allocated for the terminal equipment; where, The processing module 1202 is specifically configured to: use a default method to determine the number of DMRS ports allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity in sequence according to the DMRS port set; wherein, the two PUSCH transmission opportunities do not support the first RANK combination, and the total RANK number indicated by the antenna port indication field is 2 or 4.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels facing different transmitting and receiving points TRP.
- the DMRS port allocation information at least includes the DMRS port set allocated to the terminal device, and the DMRS There is a mapping relationship between the index of the DMRS port in the port set and the RANK combination supported by multiple PUSCH transmission opportunities; wherein, the processing module 1202 is specifically used to: according to the DMRS port set and the mapping relationship, use a default predefined method to respectively determine the corresponding allocation to the first port.
- the number of DMRS ports for one PUSCH transmission opportunity and the second PUSCH transmission opportunity; where, the two PUSCH transmission opportunities do not support the first RANK combination, and the total number of RANK indicated by the antenna port indication field is 3.
- the DMRS port allocation information at least includes: a DMRS port set allocated to the terminal device; additional indication information, the additional indication information is used to indicate the index of the DMRS port in the DMRS port set and multiple PUSCH transmission opportunities. Mapping relationships between supported RANK combinations.
- PUSCH uses two associated PUSCH transmission opportunities on different beams in different panels for different transmitting and receiving points TRP; the processing module 1202 is specifically used to: determine the sequential allocation of multiple DMRS ports to The number of DMRS ports for the first PUSCH transmission opportunity and the second PUSCH transmission opportunity; wherein, the two PUSCH transmission opportunities do not support the first RANK combination, and the total number of RANK indicated by the antenna port indication field is 3.
- the DMRS port allocation information at least includes: a set of DMRS ports allocated to the terminal device; additional indication information, the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, the first PUSCH The DMRS port occupied by the transmission opportunity belongs to the DMRS port set.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP; the processing module 1202 is specifically used to: occupy the first PUSCH transmission opportunity indicated by the DMRS port set and additional indication information.
- DMRS ports determine the DMRS port information corresponding to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity respectively; wherein, the two PUSCH transmission opportunities do not support the first RANK combination, and the total antenna port indication field indicates The RANK number is 3.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP, and the DMRS port allocation information at least includes a set of DMRS ports allocated for the terminal equipment; wherein, the processing module 1202 is specifically used to determine the number of DMRS ports assigned to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity in a default manner according to the DMRS port set; among them, the two PUSCH transmission opportunities support the first RANK combination, And the total RANK number indicated by the antenna port indication field is 2.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP.
- the DMRS port allocation information at least includes the DMRS port set allocated for the terminal device, and the DMRS port set There is a mapping relationship between the index of the DMRS port in and the RANK combination supported by multiple PUSCH transmission opportunities; wherein, the processing module 1202 is specifically used to: according to the DMRS port set and mapping relationship, use the default predefined method to respectively determine the corresponding allocation to the first The number of DMRS ports for the PUSCH transmission opportunity and the second PUSCH transmission opportunity; wherein, the two PUSCH transmission opportunities support the first RANK combination, and the total RANK number indicated by the antenna port indication field is 3 or 4.
- PUSCH uses two associated PUSCH transmission opportunities on different beams in different panels for different transmitting and receiving points TRP; the processing module 1202 is specifically used to: determine the sequential allocation of multiple DMRS ports to The number of DMRS ports for the first PUSCH transmission opportunity and the second PUSCH transmission opportunity; wherein, the two PUSCH transmission opportunities support the first RANK combination, and the total number of RANK indicated by the antenna port indication field is 3 or 4.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP; the processing module 1202 is specifically used to: occupy the first PUSCH transmission opportunity indicated by the DMRS port set and additional indication information.
- DMRS ports respectively determine the DMRS port information allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity; wherein, the two PUSCH transmission opportunities support the first RANK combination, and the total RANK indicated by the antenna port indication field The number is 3 or 4.
- the first RANK combination is a RANK combination of 1+3 mode or 3+1 mode.
- a single DCI also includes at least one sounding reference signal resource indication SRI and/or precoding matrix indication TPMI indication field, and an antenna port indication field, where at least one SRI and/or TPMI indication field is used to indicate The RANK combination corresponding to the actual PUSCH transmission corresponding to multiple PUSCH transmission opportunities; the antenna port indication field is used to indicate the total DMRS port set allocated to the terminal device.
- the processing module 1202 is also configured to: determine, based on at least one SRI and/or TPMI indication field and the antenna port indication field, that PUSCH is associated with different beams in different panels facing different transmitting and receiving points TRP.
- DMRS port information configured for PUSCH transmission timing.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP, and at least one SRI and/or TPMI indication field includes two SRI and/or TPMI. Indication field, where the first SRI and/or TPMI indication field is used to indicate the RANK number corresponding to the first PUSCH transmission opportunity; the second SRI and/or TPMI indication field is used to indicate the RANK number corresponding to the second PUSCH transmission opportunity. RANK number.
- the processing module 1202 is specifically configured to: the RANK number corresponding to the first PUSCH transmission opportunity indicated by the first SRI and/or TPMI indication field and the second PUSCH transmission indicated by the second SRI and/or TPMI indication field.
- the RANK number corresponding to the opportunity determines the RANK combination supported by the two PUSCH transmission opportunities; based on the RANK combination supported by the two PUSCH transmission opportunities and the DMRS port set allocated to the terminal device indicated by the antenna port indication field, determine the corresponding allocation to the first The DMRS port information of the first PUSCH transmission opportunity and the second PUSCH transmission opportunity.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP, and at least one SRI and/or TPMI indication field includes an SRI and/or TPMI indication. field, where a code point of an SRI and/or TPMI indication field indicates two valid SRIs and/or TPMIs, where the first valid SRI and/or TPMI is used to indicate the first PUSCH transmission opportunity. RANK number, the second valid SRI and/or TPMI is used to indicate the RANK number corresponding to the second PUSCH transmission opportunity.
- the processing module 1202 is specifically configured to: the RANK number corresponding to the first PUSCH transmission opportunity indicated by the first valid SRI and/or TPMI, the second PUSCH transmission indicated by the second valid SRI and/or TPMI.
- the RANK number corresponding to the opportunity and the set of DMRS ports allocated to the terminal device indicated by the antenna port indication field are used to determine the DMRS port information corresponding to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity using a predefined method.
- the DMRS port allocation information at least includes additional indication information, and the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, where the DMRS port occupied by the first PUSCH transmission opportunity belongs to the DMRS in the port collection.
- the processing module 1202 is specifically configured to: the RANK number corresponding to the first PUSCH transmission opportunity indicated by the first valid SRI and/or TPMI, the second PUSCH transmission indicated by the second valid SRI and/or TPMI.
- the RANK number corresponding to the opportunity, the set of DMRS ports allocated to the terminal device indicated by the antenna port indication field, and the DMRS ports occupied by the first PUSCH transmission opportunity indicated by the additional indication information respectively determine the corresponding allocation to the first PUSCH transmission opportunity and DMRS port information for the second PUSCH transmission opportunity.
- the communication device 120 is a network side device: the processing module 1202 is used to allocate DMRS port allocation information indicating multiple DMRS ports to a terminal device with a multi-antenna panel panel according to the demodulation reference signal DMRS port allocation table; the transceiver module 1201 uses It is used to send a single downlink control information DCI to the terminal equipment; a single DCI includes DMRS port allocation information, and the DMRS port allocation information is used to determine the associated corresponding panels for different sending and receiving points.
- TRP uses the physical uplink shared channel PUSCH transmission timing on different beams respectively.
- Corresponding DMRS port information wherein, different panels use PUSCH transmission opportunities on different beams for different transmitting and receiving points TRP, and the corresponding DMRS port information belongs to the same code division multiplexing CDM group or to different CDM groups.
- a single DCI also includes an antenna port indication field.
- the antenna port indication field is used to indicate the total number of transmission ranks RANK used to transmit PUSCH, and the total number of RANK is greater than 1.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels facing different transmitting and receiving points TRP, and the DMRS port allocation information at least includes a set of DMRS ports allocated for the terminal device.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels facing different transmitting and receiving points TRP.
- the DMRS port allocation information at least includes the DMRS port set allocated to the terminal device, and the DMRS There is a mapping relationship between the index of the DMRS port in the port set and the RANK combination supported by multiple PUSCH transmission opportunities.
- the DMRS port allocation information at least includes: a DMRS port set allocated to the terminal device; additional indication information, the additional indication information is used to indicate the index of the DMRS port in the DMRS port set and multiple PUSCH transmission opportunities. Mapping relationships between supported RANK combinations.
- the DMRS port allocation information at least includes: a set of DMRS ports allocated to the terminal device; additional indication information, the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, the first PUSCH The DMRS port occupied by the transmission opportunity belongs to the DMRS port set.
- a single DCI also includes at least one sounding reference signal resource indication SRI and/or precoding matrix indication TPMI indication field, and an antenna port indication field, where at least one SRI and/or TPMI indication field is It is used to indicate the RANK combination corresponding to the actual PUSCH transmission corresponding to multiple PUSCH transmission opportunities; the antenna port indication field is used to indicate the total DMRS port set allocated to the terminal equipment.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP, and at least one SRI and/or TPMI indication field includes two SRI and/or TPMI. Indication field, where the first SRI and/or TPMI indication field is used to indicate the RANK number corresponding to the first PUSCH transmission opportunity; the second SRI and/or TPMI indication field is used to indicate the RANK number corresponding to the second PUSCH transmission opportunity. RANK number.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP, and at least one SRI and/or TPMI indication field includes an SRI and/or TPMI indication. field, where a code point of an SRI and/or TPMI indication field indicates two valid SRIs and/or TPMIs, where the first valid SRI and/or TPMI is used to indicate the first PUSCH transmission opportunity. RANK number, the second valid SRI and/or TPMI is used to indicate the RANK number corresponding to the second PUSCH transmission opportunity.
- the DMRS port allocation information at least includes additional indication information, and the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, where the DMRS port occupied by the first PUSCH transmission opportunity belongs to the DMRS in the port collection.
- FIG. 13 is a schematic structural diagram of another communication device 130 provided by an embodiment of the present disclosure.
- the communication device 130 may be a network-side device, a terminal device, a chip, a chip system, a processor, etc. that supports the network-side device to implement the above method, or a chip or a chip system that supports the terminal device to implement the above method. , or processor, etc.
- the device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.
- Communication device 130 may include one or more processors 1301.
- the processor 1301 may be a general-purpose processor or a special-purpose processor, or the like.
- it can be a baseband processor or a central processing unit.
- the baseband processor can be used to process communication protocols and communication data.
- the central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.
- the communication device 130 may also include one or more memories 1302, on which a computer program 1304 may be stored.
- the processor 1301 executes the computer program 1304, so that the communication device 130 performs the steps described in the above method embodiments. method.
- the memory 1302 may also store data.
- the communication device 130 and the memory 1302 can be provided separately or integrated together.
- the communication device 130 may also include a transceiver 1305 and an antenna 1306.
- the transceiver 1305 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions.
- the transceiver 1305 may include a receiver and a transmitter.
- the receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function;
- the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.
- the communication device 130 may also include one or more interface circuits 1307.
- the interface circuit 1307 is used to receive code instructions and transmit them to the processor 1301 .
- the processor 1301 executes the code instructions to cause the communication device 130 to perform the method described in the above method embodiment.
- the communication device 130 is a terminal device: the processor 1301 is used to execute step 902 in Figure 9; execute step 1002 in Figure 10.
- the transceiver 1305 is used to perform step 801 in Figure 8; perform step 901 in Figure 9; and perform step 1001 in Figure 10.
- the communication device 130 is a network-side device: the transceiver 1305 is used to perform step 1102 in FIG. 11 .
- the processor 1301 is used to execute step 1101 in FIG. 11 .
- the processor 1301 may include a transceiver for implementing receiving and transmitting functions.
- the transceiver may be a transceiver circuit, an interface, or an interface circuit.
- the transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together.
- the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
- the processor 1301 may store a computer program, and the computer program running on the processor 1301 may cause the communication device 130 to perform the method described in the above method embodiment.
- the computer program may be solidified in the processor 1301, in which case the processor 1301 may be implemented by hardware.
- the communication device 130 may include a circuit, which may implement the functions of sending or receiving or communicating in the foregoing method embodiments.
- the processors and transceivers described in this disclosure may be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board (PCB), electronic equipment, etc.
- the processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
- CMOS complementary metal oxide semiconductor
- NMOS n-type metal oxide-semiconductor
- PMOS P-type Metal oxide semiconductor
- BJT bipolar junction transistor
- BiCMOS bipolar CMOS
- SiGe silicon germanium
- GaAs gallium arsenide
- the communication device described in the above embodiments may be a network side device or a terminal device, but the scope of the communication device described in this disclosure is not limited thereto, and the structure of the communication device may not be limited by FIG. 13 .
- the communication device may be a stand-alone device or may be part of a larger device.
- the communication device may be:
- the IC collection may also include storage components for storing data and computer programs;
- the communication device may be a chip or a chip system
- the schematic structural diagram of the chip shown in FIG. 14 refer to the schematic structural diagram of the chip shown in FIG. 14 .
- the chip shown in Figure 14 includes a processor 1401 and an interface 1402.
- the number of processors 1401 may be one or more, and the number of interfaces 1402 may be multiple.
- the receiving network side device provides terminal equipment with a multi-antenna panel panel according to the demodulation reference signal DMRS port allocation table.
- the allocated DMRS port allocation information indicating multiple DMRS ports; among them, the DMRS port allocation information is used to determine the corresponding DMRS ports corresponding to different panels for different sending and receiving points.
- the TRP uses the physical uplink shared channel PUSCH transmission timing on different beams. Information; among them, different panels use PUSCH transmission opportunities on different beams for different transmitting and receiving points TRP, and the corresponding DMRS port information belongs to the same code division multiplexing CDM group or to different CDM groups.
- a single DCI also includes an antenna port indication field.
- the antenna port indication field is used to indicate the total transmission rank RANK number corresponding to the transmission of PUSCH.
- the total RANK number is greater than 1; the processor 1401 determines the number of transmission ranks according to the antenna port.
- the indication domain and DMRS port allocation information are determined as DMRS port information configured for PUSCH in different panels for different transmitting and receiving points TRP using associated PUSCH transmission opportunities on different beams.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP, and the DMRS port allocation information at least includes a set of DMRS ports allocated for the terminal equipment; where, The processor 1401 is specifically used to determine the number of DMRS ports corresponding to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity in a default manner according to the DMRS port set; wherein, the two PUSCH transmission opportunities do not support the first PUSCH transmission opportunity.
- RANK combination, and the total RANK number indicated by the antenna port indication field is 2 or 4.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels facing different transmitting and receiving points TRP.
- the DMRS port allocation information at least includes the DMRS port set allocated to the terminal device, and the DMRS There is a mapping relationship between the index of the DMRS port in the port set and the RANK combination supported by multiple PUSCH transmission opportunities; wherein, the processor 1401 is specifically used to: based on the DMRS port set and the mapping relationship, use a default predefined method to determine the corresponding allocation to the first port.
- the number of DMRS ports for one PUSCH transmission opportunity and the second PUSCH transmission opportunity; where, the two PUSCH transmission opportunities do not support the first RANK combination, and the total number of RANK indicated by the antenna port indication field is 3.
- the DMRS port allocation information at least includes: a DMRS port set allocated to the terminal device; additional indication information, the additional indication information is used to indicate the index of the DMRS port in the DMRS port set and multiple PUSCH transmission opportunities. Mapping relationship between supported RANK combinations.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP; the processor 1401 is specifically used to: determine the order of multiple DMRS ports according to the DMRS port set and mapping relationship. The number of DMRS ports for the first PUSCH transmission opportunity and the second PUSCH transmission opportunity; wherein, the two PUSCH transmission opportunities do not support the first RANK combination, and the total number of RANK indicated by the antenna port indication field is 3.
- the DMRS port allocation information at least includes: a set of DMRS ports allocated to the terminal device; additional indication information, the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, the first PUSCH The DMRS port occupied by the transmission opportunity belongs to the DMRS port set.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP; the processor 1401 is specifically used to: occupy the first PUSCH transmission opportunity indicated by the DMRS port set and additional indication information.
- DMRS ports determine the DMRS port information corresponding to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity respectively; wherein, the two PUSCH transmission opportunities do not support the first RANK combination, and the total antenna port indication field indicates The RANK number is 3.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP, and the DMRS port allocation information at least includes a DMRS port set allocated for the terminal device; wherein, the processor 1401 is specifically used to determine the number of DMRS ports allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity in a default manner according to the DMRS port set; among them, the two PUSCH transmission opportunities support the first RANK combination, And the total RANK number indicated by the antenna port indication field is 2.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP.
- the DMRS port allocation information at least includes the DMRS port set allocated for the terminal device, and the DMRS port set There is a mapping relationship between the index of the DMRS port in and the RANK combination supported by multiple PUSCH transmission opportunities; among which, the processor 1401 is specifically used to: according to the DMRS port set and mapping relationship, use the default predefined method to determine the corresponding allocation to the first one.
- the number of DMRS ports for the PUSCH transmission opportunity and the second PUSCH transmission opportunity; wherein, the two PUSCH transmission opportunities support the first RANK combination, and the total RANK number indicated by the antenna port indication field is 3 or 4.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP; the processor 1401 is specifically used to: determine the order of multiple DMRS ports according to the DMRS port set and mapping relationship. The number of DMRS ports for the first PUSCH transmission opportunity and the second PUSCH transmission opportunity; wherein, the two PUSCH transmission opportunities support the first RANK combination, and the total number of RANK indicated by the antenna port indication field is 3 or 4.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP; the processor 1401 is specifically used to: occupy the first PUSCH transmission opportunity indicated by the DMRS port set and additional indication information.
- DMRS ports respectively determine the DMRS port information allocated to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity; wherein, the two PUSCH transmission opportunities support the first RANK combination, and the total RANK indicated by the antenna port indication field The number is 3 or 4.
- the first RANK combination is a RANK combination of 1+3 mode or 3+1 mode.
- a single DCI also includes at least one sounding reference signal resource indication SRI and/or precoding matrix indication TPMI indication field, and an antenna port indication field, where at least one SRI and/or TPMI indication field is used to indicate The RANK combination corresponding to the actual PUSCH transmission corresponding to multiple PUSCH transmission opportunities; the antenna port indication field is used to indicate the total DMRS port set allocated to the terminal device.
- the processor 1401 is further configured to: determine, based on at least one SRI and/or TPMI indication field and the antenna port indication field, that PUSCH is associated with different beams in different panels facing different transmitting and receiving points TRP.
- DMRS port information configured for PUSCH transmission timing.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP, and at least one SRI and/or TPMI indication field includes two SRI and/or TPMI. Indication field, where the first SRI and/or TPMI indication field is used to indicate the RANK number corresponding to the first PUSCH transmission opportunity; the second SRI and/or TPMI indication field is used to indicate the RANK number corresponding to the second PUSCH transmission opportunity. RANK number.
- the processor 1401 is specifically configured to: the RANK number corresponding to the first PUSCH transmission opportunity indicated by the first SRI and/or TPMI indication field and the second PUSCH transmission indicated by the second SRI and/or TPMI indication field.
- the RANK number corresponding to the opportunity determines the RANK combination supported by the two PUSCH transmission opportunities; based on the RANK combination supported by the two PUSCH transmission opportunities and the DMRS port set allocated to the terminal device indicated by the antenna port indication field, determine the corresponding allocation to the first The DMRS port information of the first PUSCH transmission opportunity and the second PUSCH transmission opportunity.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP, and at least one SRI and/or TPMI indication field includes an SRI and/or TPMI indication. field, where a code point of an SRI and/or TPMI indication field indicates two valid SRIs and/or TPMIs, where the first valid SRI and/or TPMI is used to indicate the first PUSCH transmission opportunity. RANK number, the second valid SRI and/or TPMI is used to indicate the RANK number corresponding to the second PUSCH transmission opportunity.
- the processor 1401 is specifically configured to: the RANK number corresponding to the first PUSCH transmission opportunity indicated by the first valid SRI and/or TPMI, and the second PUSCH transmission indicated by the second valid SRI and/or TPMI.
- the RANK number corresponding to the opportunity and the set of DMRS ports allocated to the terminal device indicated by the antenna port indication field are used to determine the DMRS port information corresponding to the first PUSCH transmission opportunity and the second PUSCH transmission opportunity using a predefined method.
- the DMRS port allocation information at least includes additional indication information, and the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, where the DMRS port occupied by the first PUSCH transmission opportunity belongs to the DMRS in the port collection.
- the processor 1401 is specifically configured to: the RANK number corresponding to the first PUSCH transmission opportunity indicated by the first valid SRI and/or TPMI, and the second PUSCH transmission indicated by the second valid SRI and/or TPMI.
- the RANK number corresponding to the opportunity, the set of DMRS ports allocated to the terminal equipment indicated by the antenna port indication field, and the DMRS ports occupied by the first PUSCH transmission opportunity indicated by the additional indication information respectively determine the corresponding allocation to the first PUSCH transmission opportunity and DMRS port information for the second PUSCH transmission opportunity.
- the processor 1401 is used to allocate DMRS port allocation information indicating multiple DMRS ports to a terminal device with a multi-antenna panel panel according to the demodulation reference signal DMRS port allocation table; the interface 1402 is used to send a single downlink control to the terminal device Information DCI; a single DCI includes DMRS port allocation information.
- the DMRS port allocation information is used to determine the DMRS port information corresponding to different panels facing different sending and receiving points.
- TRP uses the physical uplink shared channel PUSCH transmission timing on different beams; where, Different panels use PUSCH transmission opportunities on different beams for different transmitting and receiving points.
- the corresponding DMRS port information belongs to the same code division multiplexing CDM group or to different CDM groups.
- a single DCI also includes an antenna port indication field.
- the antenna port indication field is used to indicate the total number of transmission ranks RANK used to transmit PUSCH, and the total number of RANK is greater than 1.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels facing different transmitting and receiving points TRP, and the DMRS port allocation information at least includes a set of DMRS ports allocated for the terminal device.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels facing different transmitting and receiving points TRP.
- the DMRS port allocation information at least includes the DMRS port set allocated for the terminal equipment, and the DMRS There is a mapping relationship between the index of the DMRS port in the port set and the RANK combination supported by multiple PUSCH transmission opportunities.
- the DMRS port allocation information at least includes: a DMRS port set allocated to the terminal device; additional indication information, the additional indication information is used to indicate the index of the DMRS port in the DMRS port set and multiple PUSCH transmission opportunities. Mapping relationship between supported RANK combinations.
- the DMRS port allocation information at least includes: a set of DMRS ports allocated to the terminal device; additional indication information, the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, the first PUSCH The DMRS port occupied by the transmission opportunity belongs to the DMRS port set.
- a single DCI also includes at least one sounding reference signal resource indication SRI and/or precoding matrix indication TPMI indication field, and an antenna port indication field, where at least one SRI and/or TPMI indication field is It is used to indicate the RANK combination corresponding to the actual PUSCH transmission corresponding to multiple PUSCH transmission opportunities; the antenna port indication field is used to indicate the total DMRS port set allocated to the terminal equipment.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP, and at least one SRI and/or TPMI indication field includes two SRI and/or TPMI. Indication field, where the first SRI and/or TPMI indication field is used to indicate the RANK number corresponding to the first PUSCH transmission opportunity; the second SRI and/or TPMI indication field is used to indicate the RANK number corresponding to the second PUSCH transmission opportunity. RANK number.
- PUSCH uses two PUSCH transmission opportunities associated with different beams in different panels for different transmitting and receiving points TRP, and at least one SRI and/or TPMI indication field includes an SRI and/or TPMI indication. field, where a code point of an SRI and/or TPMI indication field indicates two valid SRIs and/or TPMIs, where the first valid SRI and/or TPMI is used to indicate the first PUSCH transmission opportunity. RANK number, the second valid SRI and/or TPMI is used to indicate the RANK number corresponding to the second PUSCH transmission opportunity.
- the DMRS port allocation information at least includes additional indication information, and the additional indication information is used to indicate the DMRS port occupied by the first PUSCH transmission opportunity, where the DMRS port occupied by the first PUSCH transmission opportunity belongs to the DMRS in the port collection.
- the chip also includes a memory 1403, which is used to store necessary computer programs and data.
- Embodiments of the present disclosure also provide a system for determining side link duration.
- the system includes a communication device as a terminal device and a communication device as a network side device in the aforementioned embodiment of FIG. 12.
- the system includes the aforementioned embodiment of FIG. 13.
- the present disclosure also provides a readable storage medium on which instructions are stored, and when the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.
- the present disclosure also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.
- the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
- software it may be implemented in whole or in part in the form of a computer program product.
- the computer program product includes one or more computer programs.
- the computer program When the computer program is loaded and executed on a computer, the processes or functions described in accordance with the embodiments of the present disclosure are generated in whole or in part.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
- the computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
- the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated.
- the usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.
- magnetic media e.g., floppy disks, hard disks, magnetic tapes
- optical media e.g., high-density digital video discs (DVD)
- DVD digital video discs
- semiconductor media e.g., solid state disks, SSD
- At least one in the present disclosure can also be described as one or more, and the plurality can be two, three, four or more, and the present disclosure is not limited.
- the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D” etc.
- the technical features described in “first”, “second”, “third”, “A”, “B”, “C” and “D” are in no particular order or order.
- each table in this disclosure can be configured or predefined.
- the values of the information in each table are only examples and can be configured as other values, which is not limited by this disclosure.
- it is not necessarily required to configure all the correspondences shown in each table.
- the corresponding relationships shown in some rows may not be configured.
- appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
- the names of the parameters shown in the titles of the above tables may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable by the communication device.
- other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables. wait.
- Predefinition in this disclosure may be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.
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Abstract
本公开实施例公开了一种上行解调参考信号端口确定方法及其装置,可以应用于NR等***中,该方法包括:由具有多天线面板panel的终端设备基于单个下行控制信息DCI调度的空分复用SDM方式下的上行同时传输STxMP,接收网络侧设备根据解调参考信号DMRS端口分配表为终端设备分配的指示多个DMRS端口的DMRS端口分配信息;其中,DMRS端口分配信息用于确定关联对应不同的panel面向不同发送接收点TRP使用不同波束上的物理上行共享信道PUSCH传输时机分别对应的DMRS端口信息;其中,不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息属于同一个码分复用CDM组或属于不同的CDM组。
Description
本公开涉及通信技术领域,尤其涉及一种上行解调参考信号端口确定方法及其装置。
多点协作在新空口(New Radio,NR)***中仍然是一种重要的技术手段,多点协作可以改善小区边缘的覆盖,在服务区内提供更为均衡的服务质量。从网络形态角度考虑,以大量的分布式接入点与基带集中处理的方式进行网络部署,将更加有利于提供均衡的用户体验速率,并且显著的降低越区切换带来的时延和信令开销。随着频段的升高,从保证网络覆盖的角度出发,也需要相对密集的接入点部署。而在高频段,随着有源天线设备集成度的提高,将更加倾向于采用模块化的有源天线阵列。每个传输接收点(Transmission Reception Point,TRP)的天线阵可以被分为若干相对独立的天线面板,因此整个阵面的形态和端口数都可以随部署场景与业务需求进行灵活的调整。而天线面板或TRP之间也可以由光纤连接,进行更为灵活的分布式部署。在毫米波波段,随着波长的减小,人体或车辆等障碍物所产生的阻挡效应将更为显著。这种情况下,从保障链路连接鲁棒性的角度出发,也可以利用多个TRP或面板之间的协作,从多个角度的多个波束进行传输/接收,从而降低阻挡效应带来的不利影响。
发明内容
本公开实施例提供一种上行解调参考信号端口确定方法及其装置,可以应用于NR***等中,可以解决如何通过多个TRP或面板(multi-panel/multi-TRP)的上行同时传输用于支持更高的吞吐率和更可靠的传输性能的问题。
第一方面,本公开实施例提供一种上行解调参考信号端口确定方法,所述方法由具有多天线面板panel的终端设备执行,所述方法包括:
基于单个下行控制信息DCI调度的空分复用SDM方式下的上行同时传输STxMP,接收网络侧设备根据解调参考信号DMRS端口分配表为所述终端设备分配的指示多个DMRS端口的DMRS端口分配信息;
其中,所述DMRS端口分配信息用于确定关联对应不同的panel面向不同发送接收点TRP使用不同波束上的物理上行共享信道PUSCH传输时机分别对应的DMRS端口信息;其中,所述不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息属于同一个码分复用CDM组或属于不同的CDM组。
在该技术方案中,通过为基于多panel的终端设备分配用以指示多个DMRS端口的DMRS端口分配信息,以使得终端设备可以确定关联对应不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息,可以实现在SDM传输复用方式下考虑能够支持单用户多输入输出(SU-MIMO)和多用户多输入输出(MU-MIMO)的DMRS端口灵活分配指示的增强,从而提供了支持基于单个DCI的多panel上行同时传输方案,解决了在版本Rel-18的上行增强中如何通过多个TRP或面板的上行同时传输用于支持更高的吞吐率和更可靠的传输性能的问题。
在一种实现方式中,所述单个DCI还包括天线端口指示域,所述天线端口指示域还可以用于指示 总的用于传输PUSCH所对应的传输秩RANK数,所述总的RANK数大于1;所述方法还包括:根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息。
在一种可能的实现方式中,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述DMRS端口分配信息至少包括为所述终端设备分配的DMRS端口集合;其中,根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:根据所述DMRS端口集合,采用默认方式分别确定依次对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口数目;其中,所述两个PUSCH传输时机不支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为2或4。
在一种可能的实现方式中,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述DMRS端口分配信息至少包括为所述终端设备分配的DMRS端口集合,且所述DMRS端口集合中的DMRS端口的索引与所述多个PUSCH传输时机支持的RANK组合存在映射关系;其中,所述根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:根据所述DMRS端口集合和所述映射关系,采用默认预定义方式分别确定对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口数目;其中,所述两个PUSCH传输时机不支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为3。
在一种可能的实现方式中,所述DMRS端口分配信息至少包括:
为所述终端设备分配的DMRS端口集合;
附加指示信息,所述附加指示信息用于指示所述DMRS端口集合中的DMRS端口的索引与所述多个PUSCH传输时机支持的RANK组合之间的映射关系。
在一种可能的实现方式中,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;所述根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:
根据所述DMRS端口集合和所述映射关系,确定将所述多个DMRS端口顺序分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口数目;其中,所述两个PUSCH传输时机不支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为3。
在一种可能的实现方式中,所述DMRS端口分配信息至少包括:
为所述终端设备分配的DMRS端口集合;
附加指示信息,所述附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,所述第一个PUSCH传输时机占用的DMRS端口属于所述DMRS端口集合中。
在一种可能的实现方式中,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;所述根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS 端口信息,包括:
根据所述DMRS端口集合和所述附加指示信息指示的所述第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口信息;其中,所述两个PUSCH传输时机不支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为3。
在一种实现方式中,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述DMRS端口分配信息至少包括为所述终端设备分配的DMRS端口集合;其中,根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的,包括:
根据所述DMRS端口集合,采用默认方式分别确定依次对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口数目;其中,所述两个PUSCH传输时机支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为2。
在一种实现方式中,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述DMRS端口分配信息至少包括为所述终端设备分配的DMRS端口集合,且所述DMRS端口集合中的DMRS端口的索引与所述多个PUSCH传输时机支持的RANK组合存在映射关系;其中,根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:
根据所述DMRS端口集合和所述映射关系,采用默认预定义方式分别确定对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口数目;其中,所述两个PUSCH传输时机支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为3或4。
在一种可能的实现方式中,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;所述根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:
根据所述DMRS端口集合和所述映射关系,确定将所述多个DMRS端口顺序分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口数目;其中,所述两个PUSCH传输时机支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为3或4。
在一种可能的实现方式中,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;所述根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:
根据所述DMRS端口集合和所述附加指示信息指示的所述第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口信息;其中,所述两个PUSCH传输时机支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为3或4。
在一种可能的实现方式中,所述第一RANK组合为1+3方式或3+1方式的RANK组合。
在一种实现方式中,所述单个DCI还包括至少一个探测参考信号资源指示SRI和/或预编码矩阵指示TPMI指示域,以及天线端口指示域,其中,
所述至少一个SRI和/或TPMI指示域用于指示所述多个PUSCH传输时机对应的PUSCH实际传输对应的RANK组合;
所述天线端口指示域用于指示为所述终端设备分配的总的DMRS端口集合。
在一种可能的实现方式中,所述方法还包括:
根据所述至少一个SRI和/或TPMI指示域和所述天线端口指示域,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息。
在一种可能的实现方式中,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述至少一个SRI和/或TPMI指示域包括两个SRI和/或TPMI指示域,其中,
第一个所述SRI和/或TPMI指示域用于指示第一个所述PUSCH传输时机对应的RANK数;
第二个所述SRI和/或TPMI指示域用于指示第二个所述PUSCH传输时机对应的RANK数。
在一种可能的实现方式中,所述根据所述至少一个SRI和/或TPMI指示域和所述天线端口指示域,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:
根据第一个所述SRI和/或TPMI指示域指示的第一个所述PUSCH传输时机对应的RANK数和第二个所述SRI和/或TPMI指示域指示的第二个所述PUSCH传输时机对应的RANK数,确定所述两个PUSCH传输时机支持的RANK组合;
根据所述两个PUSCH传输时机支持的RANK组合和所述天线端口指示域指示的为所述终端设备分配的DMRS端口集合,分别确定对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口信息。
在一种可能的实现方式中,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述至少一个SRI和/或TPMI指示域包括一个SRI和/或TPMI指示域,
其中,所述一个SRI和/或TPMI指示域的代码点对应指示两个有效的SRI和/或TPMI,其中,第一个所述有效的SRI和/或TPMI用于指示第一个所述PUSCH传输时机对应的RANK数,第二个所述有效的SRI和/或TPMI用于指示第二个所述PUSCH传输时机对应的RANK数。
在一种可能的实现方式中,所述根据所述至少一个SRI和/或TPMI指示域和所述天线端口指示域,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:
根据第一个所述有效的SRI和/或TPMI指示的第一个所述PUSCH传输时机对应的RANK数,第二个所述有效的SRI和/或TPMI指示的第二个所述PUSCH传输时机对应的RANK数,以及所述天线端口指示域指示的为所述终端设备分配的DMRS端口集合,采用预定义方式分别确定对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口信息。
在一种可能的实现方式中,所述DMRS端口分配信息至少包括附加指示信息,所述附加指示信息 用于指示第一个PUSCH传输时机占用的DMRS端口,其中,所述第一个PUSCH传输时机占用的DMRS端口属于所述DMRS端口集合中。
在一种可能的实现方式中,所述根据所述至少一个SRI和/或TPMI指示域和所述天线端口指示域,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:
根据第一个所述有效的SRI和/或TPMI指示的第一个所述PUSCH传输时机对应的RANK数,第二个所述有效的SRI和/或TPMI指示的第二个所述PUSCH传输时机对应的RANK数,所述天线端口指示域指示的为所述终端设备分配的DMRS端口集合,以及所述附加指示信息指示的所述第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口信息。
第二方面,本公开实施例提供另一种上行解调参考信号端口确定方法,所述方法由网络侧设备执行,所述方法包括:
根据解调参考信号DMRS端口分配表,为具有多天线面板panel的终端设备分配用于指示多个DMRS端口的DMRS端口分配信息;
向所述终端设备发送单个下行控制信息DCI;所述单个DCI包括所述DMRS端口分配信息,所述DMRS端口分配信息用于确定关联对应不同的panel面向不同发送接收点TRP使用不同波束上的物理上行共享信道PUSCH传输时机分别对应的DMRS端口信息;其中,所述不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息属于同一个码分复用CDM组或属于不同的CDM组。
在该技术方案中,通过网络侧设备为基于多panel的终端设备分配用以指示多个DMRS端口的DMRS端口分配信息,以使得终端设备可以确定关联对应不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息,可以实现在SDM传输复用方式下考虑能够支持单用户多输入输出(SU-MIMO)和多用户多输入输出(MU-MIMO)的DMRS端口灵活分配指示的增强,从而提供了支持基于单个DCI的多panel上行同时传输方案,解决了在版本Rel-18的上行增强中如何通过多个TRP或面板的上行同时传输用于支持更高的吞吐率和更可靠的传输性能的问题。
在一种实现方式中,所述单个DCI还包括天线端口指示域,所述天线端口指示域用于指示总的用于传输PUSCH所对应的传输秩RANK数,所述总的RANK数大于1。
在一种可能的实现方式中,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述DMRS端口分配信息至少包括为所述终端设备分配的DMRS端口集合。
在一种可能的实现方式中,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述DMRS端口分配信息至少包括为所述终端设备分配的DMRS端口集合,且所述DMRS端口集合中的DMRS端口的索引与所述多个PUSCH传输时机支持的RANK组合存在映射关系。
在一种可能的实现方式中,所述DMRS端口分配信息至少包括:
为所述终端设备分配的DMRS端口集合;
附加指示信息,所述附加指示信息用于指示所述DMRS端口集合中的DMRS端口的索引与所述多个PUSCH传输时机支持的RANK组合之间的映射关系。
在一种可能的实现方式中,所述DMRS端口分配信息至少包括:
为所述终端设备分配的DMRS端口集合;
附加指示信息,所述附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,所述第一个PUSCH传输时机占用的DMRS端口属于所述DMRS端口集合中。
在一种可能的实现方式中,所述单个DCI还包括至少一个探测参考信号资源指示SRI和/或预编码矩阵指示TPMI指示域,以及天线端口指示域,其中,所述至少一个SRI和/或TPMI指示域用于指示所述多个PUSCH传输时机对应的PUSCH实际传输对应的RANK组合;
所述天线端口指示域用于指示为所述终端设备分配的总的DMRS端口集合。
在一种可能的实现方式中,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述至少一个SRI和/或TPMI指示域包括两个SRI和/或TPMI指示域,其中,第一个所述SRI和/或TPMI指示域用于指示第一个所述PUSCH传输时机对应的RANK数;第二个所述SRI和/或TPMI指示域用于指示第二个所述PUSCH传输时机对应的RANK数。
在一种可能的实现方式中,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述至少一个SRI和/或TPMI指示域包括一个SRI和/或TPMI指示域,其中,所述一个SRI和/或TPMI指示域的代码点对应指示两个有效的SRI和/或TPMI,其中,第一个所述有效的SRI和/或TPMI用于指示第一个所述PUSCH传输时机对应的RANK数,第二个所述有效的SRI和/或TPMI用于指示第二个所述PUSCH传输时机对应的RANK数。
在一种可能的实现方式中,所述DMRS端口分配信息至少包括附加指示信息,所述附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,其中,所述第一个PUSCH传输时机占用的DMRS端口属于所述DMRS端口集合中。
第三方面,本公开实施例提供一种通信装置,该通信装置具有实现上述第一方面所述的方法中终端设备的部分或全部功能,比如通信装置的功能可具备本公开中的部分或全部实施例中的功能,也可以具备单独实施本公开中的任一个实施例的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种实现方式中,该通信装置的结构中可包括收发模块和处理模块,所述处理模块被配置为支持通信装置执行上述方法中相应的功能。所述收发模块用于支持通信装置与其他设备之间的通信。所述通信装置还可以包括存储模块,所述存储模块用于与收发模块和处理模块耦合,其保存通信装置必要的计算机程序和数据。
作为示例,处理模块可以为处理器,收发模块可以为收发器或通信接口,存储模块可以为存储器。
第四方面,本公开实施例提供另一种通信装置,该通信装置具有实现上述第二方面所述的方法示例中网络侧设备的部分或全部功能,比如通信装置的功能可具备本公开中的部分或全部实施例中的功能,也可以具备单独实施本公开中的任一个实施例的功能。所述功能可以通过硬件实现,也可以通过硬件执 行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种实现方式中,该通信装置的结构中可包括收发模块和处理模块,该处理模块被配置为支持通信装置执行上述方法中相应的功能。收发模块用于支持通信装置与其他设备之间的通信。所述通信装置还可以包括存储模块,所述存储模块用于与收发模块和处理模块耦合,其保存通信装置必要的计算机程序和数据。
作为示例,处理模块可以为处理器,收发模块可以为收发器或通信接口,存储模块可以为存储器。
第五方面,本公开实施例提供一种通信装置,该通信装置包括处理器,当该处理器调用存储器中的计算机程序时,执行上述第一方面所述的方法。
第六方面,本公开实施例提供一种通信装置,该通信装置包括处理器,当该处理器调用存储器中的计算机程序时,执行上述第二方面所述的方法。
第七方面,本公开实施例提供一种通信装置,该通信装置包括处理器和存储器,该存储器中存储有计算机程序;所述处理器执行该存储器所存储的计算机程序,以使该通信装置执行上述第一方面所述的方法。
第八方面,本公开实施例提供一种通信装置,该通信装置包括处理器和存储器,该存储器中存储有计算机程序;所述处理器执行该存储器所存储的计算机程序,以使该通信装置执行上述第二方面所述的方法。
第九方面,本公开实施例提供一种通信装置,该装置包括处理器和接口电路,该接口电路用于接收代码指令并传输至该处理器,该处理器用于运行所述代码指令以使该装置执行上述第一方面所述的方法。
第十方面,本公开实施例提供一种通信装置,该装置包括处理器和接口电路,该接口电路用于接收代码指令并传输至该处理器,该处理器用于运行所述代码指令以使该装置执行上述第二方面所述的方法。
第十一方面,本公开实施例提供一种上行解调参考信号端口确定***,该***包括第三方面所述的通信装置以及第四方面所述的通信装置,或者,该***包括第五方面所述的通信装置以及第六方面所述的通信装置,或者,该***包括第七方面所述的通信装置以及第八方面所述的通信装置,或者,该***包括第九方面所述的通信装置以及第十方面所述的通信装置。
第十二方面,本发明实施例提供一种计算机可读存储介质,用于储存为上述终端设备所用的指令,当所述指令被执行时,使所述终端设备执行上述第一方面所述的方法。
第十三方面,本发明实施例提供一种可读存储介质,用于储存为上述网络侧设备所用的指令,当所述指令被执行时,使所述网络侧设备执行上述第二方面所述的方法。
第十四方面,本公开还提供一种包括计算机程序的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第一方面所述的方法。
第十五方面,本公开还提供一种包括计算机程序的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第二方面所述的方法。
第十六方面,本公开提供一种芯片***,该芯片***包括至少一个处理器和接口,用于支持终端设备实现第一方面所涉及的功能,例如,确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中,所述芯片***还包括存储器,所述存储器,用于保存终端设备必要的计算机程序和数据。该芯片***,可以由芯片构成,也可以包括芯片和其他分立器件。
第十七方面,本公开提供一种芯片***,该芯片***包括至少一个处理器和接口,用于支持网络侧设备实现第二方面所涉及的功能,例如,确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中,所述芯片***还包括存储器,所述存储器,用于保存网络侧设备必要的计算机程序和数据。该芯片***,可以由芯片构成,也可以包括芯片和其他分立器件。
第十八方面,本公开提供一种计算机程序,当其在计算机上运行时,使得计算机执行上述第一方面所述的方法。
第十九方面,本公开提供一种计算机程序,当其在计算机上运行时,使得计算机执行上述第二方面所述的方法。
为了更清楚地说明本公开实施例或背景技术中的技术方案,下面将对本公开实施例或背景技术中所需要使用的附图进行说明。
图1是本公开实施例提供的配置类型1,1个符号的情况下front-load DMRS图样示例图;
图2是本公开实施例提供的配置类型1,2个符号的情况下front-load DMRS图样示例图;
图3是本公开实施例提供的配置类型2,1个符号的情况下front-load DMRS图样示例图;
图4是本公开实施例提供的配置类型2,2个符号的情况下front-load DMRS图样示例图;
图5是本公开实施例提供的基于单个DCI的多panel发送实现的逻辑图;
图6是本公开实施例提供的多层数据应用2个码字CW进行调度和传输的示例图;
图7为本公开实施例提供的一种通信***的架构示意图;
图8是本公开实施例提供的一种上行解调参考信号端口确定方法的流程示意图;
图9是本公开实施例提供的另一种上行解调参考信号端口确定方法的流程示意图;
图10是本公开实施例提供的又一种上行解调参考信号端口确定方法的流程示意图;
图11是本公开实施例提供的又一种上行解调参考信号端口确定方法的流程示意图;
图12是本公开实施例提供的一种通信装置的结构示意图;
图13是本公开实施例提供的另一种通信装置的结构示意图;
图14是本公开实施例提供的一种芯片的结构示意图。
下面详细描述本公开的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,旨在用于解释本公开,而不能理解为对本公开的限制。其中,在本公开的描述中,除非另有说明,“/”表示或的意思,例如,A/B可以表示A或B;本文中的“和/或”仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。
为了改善小区边缘的覆盖,在服务区内提供更为均衡的服务质量,多点协作在新空口(New Radio,NR)***中仍然是一种重要的技术手段。从网络形态角度考虑,以大量的分布式接入点与基带集中处理的方式进行网络部署,将更加有利于提供均衡的用户体验速率,并且显著的降低越区切换带来的时延和信令开销。随着频段的升高,从保证网络覆盖的角度出发,也需要相对密集的接入点部署。而在高频段,随着有源天线设备集成度的提高,将更加倾向于采用模块化的有源天线阵列。每个传输接收点(Transmission Reception Point,TRP)的天线阵可以被分为若干相对独立的天线面板,因此整个阵面的形态和端口数都可以随部署场景与业务需求进行灵活的调整。而天线面板或TRP之间也可以由光纤连接,进行更为灵活的分布式部署。在毫米波波段,随着波长的减小,人体或车辆等障碍物所产生的阻挡效应将更为显著。这种情况下,从保障链路连接鲁棒性的角度出发,也可以利用多个TRP或面板之间的协作,从多个角度的多个波束进行传输/接收,从而降低阻挡效应带来的不利影响。
根据发送信号流到多个TRP/面板上的映射关系,多点协作传输技术可以分为相干和非相干传输两种。其中,相干传输时,每个数据层会通过加权向量映射到多个TRP/面板之上。而非相干传输时,每个数据流只映射到部分的TRP/面板上。相干传输对于传输点之间的同步以及回程链路的传输能力有着 更高的要求,因而对现实部署条件中的很多非理想因素较为敏感。相对而言,非相干传输受上述因素的影响较小,因此是多点传输技术的重点考虑方案。
需要说明的是,在NR***中版本Rel-15中,针对多传输接收点(MTRP)的研究和标准化工作并没有充分展开,版本Rel-16主要针对物理下行共享信道(Physical downlink shared channel,PDSCH)的标准化,版本Rel-17针对上行PUSCH(Physical Uplink Shared Channel,物理上行共享信道)/PUCCH(Physical UplinkControl Channel,物理上行控制信道)进行了MTRP的标准化增强,但只标准化了TDM(时分复用)传输方案,目前版本Rel-18对于PUSCH/PUCCH考虑基于多panel终端MTRP的同时传输增强。
下面介绍一下DMRS(Demodulation Reference Signal,解调参考信号)的概念。
对于PDSCH/PUSCH信道,数据传输的数据层与解调使用的DMRS端口相对应。NR***中数据信道(PDSCH/PUSCH)DMRS设计主要包含以下几个方面:
1、Front-load DMRS(前置DMRS):在每个调度时间单位内,DMRS首次出现的位置应当尽可能地靠近调度的起始点。Front-load DMRS的使用,有助于接收侧快速估计信道并进行接收检测,对于降低时延并支持所谓的自包含结构具有重要的作用。取决于总共的正交DMRS端口数,front-load DMRS最多可以占用两个连续的OFDM符号。
2、Additional DMRS(附加DMRS):对于低移动性场景,front-load DMRS能以较低的开销获得满足解调需求的信道估计性能。但是,NR***所考虑的移动速度最高可达500km/h,面临动态范围如此之大的移动性,除了front-load DMRS之外,在中/高速场景之中,还需要在调度持续时间内安插更多的DMRS符号,以满足对信道时变性的估计精度。针对这一问题,NR***中采用了front-load DMRS与时域密度可配置的additional DMRS相结合的DMRS结构。每一组additional DMRS的图样都是front-load DMRS的重复。
在每个调度时间单位内,如果存在additional DMRS,则每组additional DMRS的图样均与front-load DMRS保持一致。因此,front-load DMRS的图样设计是DMRS设计的基础。Front-load DMRS的设计思路分为两类,其中第一类(type1)采用了COMB(梳齿)+OCC(正交叠加码)结构的,第二类(type2)是基于FDM(频分复用)+OCC结构的。
取决于传输所使用的正交端口数,front-load DMRS最多可以配置为两个OFDM符号。考虑到功率利用效率的因素,使用两个符号的front-load DMRS时,在频域CS或OCC基础之上,又在时域使用了TD-OCC(十分正交叠加码)。其中,如图1至图4所示,为两种配置类型(configuration type)的front-load DMRS图样的示例图。其中,图1为配置类型1,1个符号的情况下front-load DMRS图样示例图;图2为配置类型1,2个符号的情况下front-load DMRS图样示例图;图3为配置类型2,1个符号的情况下front-load DMRS图样示例图;图4为配置类型2,2个符号的情况下front-load DMRS图样示例图。
在中/高速场景之中,除了front-load DMRS之外,还需要在调度持续时间内安插更多的DMRS符号,以满足对信道时变性的估计精度。NR***中采用了front-load DMRS与时域密度可配置的additional DMRS相结合的DMRS结构。每一组additional DMRS的图样都是front-load DMRS的重复。因此,与front-load DMRS一致,每一组additional DMRS最多也可以占用两个连续的DMRS符号。根据具体的使用场景,在每个调度可以配置最多三组additional DMRS。Additional DMRS的数量取决于高层参数配置以及具体的调度时长。
下面介绍一下QCL(Quasi-colocation,准共址)的概念。
准共址(QCL)是指某个天线端口上的符号所经历的信道的大尺度参数可以从另一个天线端口上的符号所经历的信道所推断出来。其中的大尺度参数可以包括时延扩展、平均时延、多普勒扩展、多普勒偏移、平均增益以及空间接收参数等。
QCL的概念是随着多点协作传输(Coordinated Multiple Point transmission,CoMP)技术的出现而引入的。CoMP传输过程中涉及到的多个站点可能对应于多个地理位置不同的站点或者天线面板朝向有差异的多个扇区。例如当终端从不同的站点接收数据时,各个站点在空间上的差异会导致来自不同站点的接收链路的大尺度信道参数的差别,如多普勒频偏,时延扩展等。而信道的大尺度参数将直接影响到信道估计时滤波器系数的调整与优化,对应于不同站点发出的信号,应当使用不同的信道估计滤波参数以适应相应的信道传播特性。
因此,尽管各个站点在空间位置或角度上的差异对于UE(终端设备)以及CoMP操作本身而言是透明的,但是上述空间差异对于信道大尺度参数的影响则是UE进行信道估计与接收检测时需要考虑的重要因素。所谓两个天线端口在某些大尺度参数意义下QCL,就是指这两个端口的这些大尺度参数是相同的。或者说,只要两个端口的某些大尺度参数一致,不论他们的实际物理位置或对应的天线面板朝 向是否存在差异,终端就可以认为这两个端口是发自相同的位置(即准共站址)。
针对一些典型的应用场景,考虑到各种参考信号之间可能的QCL关系,从简化信令的角度出发,NR中将几种信道大尺度参数分为以下4个类型,便于***根据不同场景进行配置/指示:
1)QCL-TypeA:{Doppler频移,Doppler扩展,平均时延,时延扩展};其中,除了空间接收参数参数之外的其他大尺度参数均相同;对于6GHz以下频段而言,可能并不需要空间接收参数。
2)QCL-TypeB:{Doppler频移,Doppler扩展};
3)QCL-TypeC:{Doppler频移,平均时延}
4)QCL-TypeD:{空间接收参数};如前所述,由于这一参数主要针对6GHz以上频段,因此将其单独作为一个QCL type。
可以理解,版本Rel-17标准在Multi-TRP场景下,上行增强支持了对于PUSCH/PUCCH信道的重复发送方式可以通过采用TDM复用方式在不同的上行波束方向上向给不同的基站端TRP进行上行信道的发送。
目前,通信***的瓶颈仍然在上行传输的速率及覆盖等,因此对于Rel-18标准的***增强方向,主要是考虑在Multi-TRP场景下,利用多panel终端进行上行同时传输来提高上行速率,并进一步提高传输的可靠性。传输可以基于一个PDCCH信道承载的一个DCI进行调度,也可以考虑基于不同PDCCH承载的不同DCI分别调度。目前考虑的同步传输方案主要是不用Panel的信道发送基于SDM(空分复用)或者FDM(频分复用)复用来实现的。如图5所示,为基于单个DCI(single DCI,S-DCI)的多panel发送实现的逻辑图。
终端设备多panel实现一般会配置多个物理panel,不同的panel的能力可能也不相同,比如,具备不同的SRS(SoundingReference Signal,探测参考信号)端口数,支持的最大数据传输层数也不一定相同,比如一个panel支持最大2层的传输,另一个panel支持最大4层的传输。网络调度器会判断终端设备当前是否适合多Panel的上行同时传输,如果终端设备当前适合多panel的上行同时传输同时被调度,则网络会直接或间接指示相关的传输参数,包括终端具体波束指示信息,传输使用的数据层数,以及使用的DMRS端口分配情况,以及预编码的指示信息等,这里主要需要确定在S-DCI调度下的DMRS端口指示问题,即如何确定不同panel上的PUSCH分别采用哪些DMRS端口来进行发送。
目前协议支持的上行最大传输层数是4层,对应一个码字的传输。因此在多panel增强中还有一个问题就是在上行支持最多2个码字来实现灵活映射。现有上行或者下行的层映射方案中,数据层数为1-4层的情况对应1个码字(CW)的传输。而这种配置很难使得同一个MCS适应不同层的信道条件,因此在层间信道性能差异较大的情况下,就会出现性能损失的情况。因此考虑对于2-4层的数据也应用2个CW进行调度和传输,如图6所示,这样网络可以充分根据层间信道条件进行调度。比如对应3层传输,在信道层间差异较大的情况下可以使用2个CW进行调度,对应一个CW传输1层数据,另外一个CW传输2层数据。这样也方便数据重传调度,有利于提高***吞吐量。***中4层以下的传输为主,因此对于整体的性能优化也是有好处的。
然而,在Rel-18的上行增强中,需要考虑如何通过multi-panel/multi-TRP的上行同时传输用于支持更高的吞吐率和更可靠的传输性能。另外,为了支持基于S-DCI的多panel上行同时传输方案,需要在SDM传输复用方案下考虑能够支持SU-MIMO和MU-MIMO的DMRS端口灵活分配指示的增强方案。
为此,本公开提出了一种上行解调参考信号端口确定方法及其装置。为了更好的理解本公开实施例公开的一种上行解调参考信号端口确定方法,下面首先对本公开实施例使用的通信***进行描述。
请参见图7,图7为本公开实施例提供的一种通信***的架构示意图。该通信***可包括但不限于一个网络侧设备和一个终端设备,图7所示的设备数量和形态仅用于举例并不构成对本公开实施例的限定,实际应用中可以包括两个或两个以上的网络侧设备,两个或两个以上的终端设备。图7所示的通信***以包括一个网络侧设备701和一个终端设备702为例。
需要说明的是,本公开实施例的技术方案可以应用于各种通信***。例如:长期演进(long term evolution,LTE)***、第五代(5th generation,5G)移动通信***、5G新空口(new radio,NR)***,或者其他未来的新型移动通信***等。还需要说明的是,本公开实施例中的侧链路还可以称为侧行链路或直通链路。
本公开实施例中的网络侧设备701是网络侧的一种用于发射或接收信号的实体。例如,网络侧设备 701可以为演进型基站(evolved NodeB,eNB)、传输点(transmission reception point,TRP)、NR***中的下一代基站(next generation NodeB,gNB)、其他未来移动通信***中的基站或无线保真(wireless fidelity,WiFi)***中的接入节点等。本公开的实施例对网络侧设备所采用的具体技术和具体设备形态不做限定。本公开实施例提供的网络侧设备可以是由集中单元(central unit,CU)与分布式单元(distributed unit,DU)组成的,其中,CU也可以称为控制单元(control unit),采用CU-DU的结构可以将网络侧设备,例如基站的协议层拆分开,部分协议层的功能放在CU集中控制,剩下部分或全部协议层的功能分布在DU中,由CU集中控制DU。
本公开实施例中的终端设备702是用户侧的一种用于接收或发射信号的实体,如手机。终端设备也可以称为终端设备(terminal)、用户设备(user equipment,UE)、移动台(mobile station,MS)、移动终端设备(mobile terminal,MT)等。终端设备可以是具备通信功能的汽车、智能汽车、手机(mobile phone)、穿戴式设备、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备等等。本公开的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
可以理解的是,本公开实施例描述的通信***是为了更加清楚的说明本公开实施例的技术方案,并不构成对于本公开实施例提供的技术方案的限定,本领域普通技术人员可知,随着***架构的演变和新业务场景的出现,本公开实施例提供的技术方案对于类似的技术问题,同样适用。
下面结合附图对本公开所提供的上行解调参考信号端口确定方法及其装置进行详细地介绍。
请参见图8,图8是本公开实施例提供的一种上行解调参考信号端口确定方法的流程示意图。需要说明的是,本公开实施例的上行解调参考信号端口确定方法可由具有多天线面板panel的终端设备执行。如图8所示,该方法可以包括但不限于如下步骤:
在步骤801中,基于单个DCI调度的SDM方式下的上行同时传输STxMP(Simultaneous transmission via multi-Panel,通过多面板同时传输),接收网络侧设备根据DMRS端口分配表为终端设备分配的指示多个DMRS端口的DMRS端口分配信息。
需要说明的是,本公开实施例中涉及的“一个”或“单个”,其是指至少包括一个,不限定必须为只有一个。同样的,对于“两个”,其也是指至少两个,不限定必须为只有两个。
其中,在本公开的实施例中,该DMRS端口分配信息用于确定关联对应不同的panel面向不同TRP使用不同波束(panel/TRP/TCI(transmission configuration indication state,传输配置指示)state)上的PUSCH传输时机分别对应的DMRS端口信息。其中,不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息,可以属于同一个码分复用CDM组,也可以属于不同的CDM组。即,不同的panel面向不同TRP进行PUSCH传输,而这些PUSCH传输采用不同的波束。其中,每一个PUSCH可以包括一个或多个PUSCH传输时机,其中,网络侧设备可以为每一个PUSCH传输时机配置DMRS端口信息。也就是说,针对多个PUSCH中的PUSCH传输时机可以相同,也可以不同;网络侧设备可以为每一个PUSCH的PUSCH传输时机,配置对应的DMRS端口信息。 在一些实施方式中,不同的PUSCH对应于相同的PUSCH传输时机。在另一些实施例中,不同的PUSCH对应于不同的PUSCH传输时机。
可选地,该波束的指示包括基于unified TCI(统一的TCI架构)的指示方法,也包括当没有unified TCI指示时,使用空间关系信息(Spatial Relation Info)指示。
在本公开的实施例中,终端设备在接收到网络侧设备为该终端设备分配的DMRS端口分配信息时,可以根据该DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息。
通过实施本公开实施例,通过为基于多panel的终端设备分配用以指示多个DMRS端口的DMRS端口分配信息,以指示终端设备关联对应不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息,可以实现在SDM传输复用方式下考虑能够支持单用户多输入输出(SU-MIMO)和多用户多输入输出(MU-MIMO)的DMRS端口灵活分配指示的增强,从而提供了支持基于单个DCI的多panel上行同时传输方案,解决了在版本Rel-18的上行增强中如何通过多个TRP或面板的上行同时传输用于支持更高的吞吐率和更可靠的传输性能的问题。
可选地,在本公开的一些实施例中,可以通过DCI信令中天线端口指示域用于指示总的数据层数(即RANK数)。其中,在本公开的实施例中,DCI信令中“antenna ports”指示域用于指示总的数据层数,即RANK数。其中,RANK只针对上行DMRS端口分配表格中RANK>1的分配情况,不同panel上的RANK组合采用默认或预定义方式来确定,可以分别具体确定对应不同beam方向上DMRS端口分配。请参见图9,图9是本公开实施例提供的另一种上行解调参考信号端口确定方法的流程示意图。需要说明的是,本公开实施例的上行解调参考信号端口确定方法可由具有多天线面板panel的终端设备执行。如图9所示,该方法可以包括但不限于如下步骤:
在步骤901中,基于单个DCI调度的SDM方式下的上行同时传输STxMP,接收网络侧设备根据DMRS端口分配表为终端设备分配的指示多个DMRS端口的DMRS端口分配信息。
其中,在本公开的实施例中,该DMRS端口分配信息用于确定关联对应不同的panel面向不同TRP使用不同波束(panel/TRP/TCI state)上的PUSCH传输时机分别对应的DMRS端口信息;其中,不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息属于同一个码分复用CDM组或属于不同的CDM组。
可选地,本公开实施例中涉及的单个DCI还可包括天线端口指示域,该天线端口指示域用于指示总的用于传输PUSCH所对应的传输秩RANK数,总的RANK数大于1。
在步骤902中,根据天线端口指示域和DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息。
本公开实施例中,不同的panel面向不同TRP进行PUSCH传输,而这些PUSCH传输采用不同的波束。其中,每一个PUSCH可以包括一个或多个PUSCH传输时机,其中,网络侧设备可以为每一个PUSCH传输时机配置DMRS端口信息。也就是说,针对多个PUSCH中的PUSCH传输时机可以相同,也可以不同;网络侧设备可以为每一个PUSCH的PUSCH传输时机,配置对应的DMRS端口信息。在一些实施方式中,不同的PUSCH对应于相同的PUSCH传输时机。在另一些实施例中,不同的PUSCH对应于不同的PUSCH传输时机。
在本公开的一些实施例中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机可为两个,DMRS端口分配信息至少可以包括为终端设备分配的DMRS端口集合。其中,在一种可能的实现方式中,可以根据DMRS端口集合,采用默认方式分别确定依次对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为2或4。作为一种示例,本公开实施例中所涉及的第一RANK组合为1+3方式或3+1方式的RANK组合。
举例而言,针对不支持1+3方式或3+1方式的RANK组合的情况,则两个panel/TRP/TCI state对应的PUSCH传输实际支持的RANK组合可以为1+1(总层数为2),1+2(总层数为3),2+1(总层数为3),2+2(总层数为4)。在天线端口指示域指示的总的RANK数为2或4的情况下,可以采用默认方式分别确定依次对应分配给第一个PUSCH传输时机(如panel#1)和第二个PUSCH传输时机(panel#2)的DMRS端口数目。可选地,如果不支持1+3/3+1的RANK组合,则两个panel/TRP/TCI对应的PUSCH传输实际支持的RANK组合为1+1(总层数为2),1+2(总层数为3),2+1(总层数为3),2+2(总层数为4),则在天线端口指示域对应指示的总的RANK数为2或4时,默认方式分别确定依次对应分配panel#1和panel#2的DMRS端口数目。例如,通过DCI信令指示的端口具体为DMRS ports={2,3},则默认确定分配给第一个PUSCH传输时机(如panel#1)的DMRS端口为{2},分配给第二个PUSCH传输时机(panel#2)的DMRS端口为{3}。
在本公开的一些实施例中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机可为两个,DMRS端口分配信息至少可以包括为终端设备分配的DMRS端口集合,且DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合存在映射关系。其中,在一种可能的实现方式中,可以根据DMRS端口集合和该映射关系,采用默认预定义方式分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为3。
举例而言,针对不支持1+3方式或3+1方式的RANK组合的情况,则两个panel/TRP/TCI state对应的PUSCH传输实际支持的RANK组合可以为1+1(总层数为2),1+2(总层数为3),2+1(总层数为3),2+2(总层数为4)。在天线端口指示域指示的总的RANK数为3的情况下,可以采用默认预定义方式分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目。例如,在DMRS端口分配表中,对于DMRS类型2,单符号,RANK=3的情况下配置的DMRS端口如下面表格1所示,可以默认预定义index0-2(即Value值为{0,1,2})指示1+2的RANK组合,index3-5(即Value值为{3,4,5})对应2+1的RANK组合,且端口顺序分配。比如,Value值为0,对应的DMRS端口为{0,1,2},Value值{0}默认预定义指示1+2的RANK组合,且端口顺序分配,因此,可以确定第一个PUSCH传输时机(panel#1)的DMRS端口为{0},确定第二个PUSCH传输时机(panel#2)的DMRS端口为{1,2}。又如,Value值为4,对应的DMRS端口为{0,1,2},Value值{4}默认预定义指示2+1的RANK组合,且端口顺序分配,因此,可以确定第一个PUSCH传输时机(panel#1)的DMRS端口为{0,1},确定第二个PUSCH传输时机(panel#2)的DMRS端口为{2}。
表格1对于DMRS类型2,单符号的情况,RANK=3情况下配置的DMRS端口
可以理解的是,上述的表格1中的每一个元素都是独立存在的,这些元素被示例性的列在同一张表格中,但是并不代表表格中的所有元素必须根据表格中所示的同时存在。其中每一个元素的值,是不依赖于表格1中任何其他元素值。因此本领域内技术人员可以理解,该表格1中的每一个元素的取值都是一个独立的实施例。需要说明的是,本公开实施例中包括多个表格,而其中的每一个表格都与表格1相似的,是将多个独立的实施例合并在了同一张表格中,而这些表格中的每一个元素也应当被认为是一个独立的实施例。
在本公开的一些实施例中,该DMRS端口分配信息至少包括:为终端设备分配的DMRS端口集合和附加指示信息。其中,该附加指示信息用于指示DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合之间的映射关系。其中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个。
其中,在本公开的实施例中,所述根据天线端口指示域和DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息的可能实现方式可以如下:根据DMRS端口集合和映射关系,确定将多个DMRS端口顺序分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为3。
举例而言,针对不支持1+3方式或3+1方式的RANK组合的情况,则两个panel/TRP/TCI state对应的PUSCH传输实际支持的RANK组合可以为1+1(总层数为2),1+2(总层数为3),2+1(总层数为3),2+2(总层数为4)。在天线端口指示域指示的总的RANK数为3的情况下,可以在DMRS端口分配表中增加相同的行数,并增加一列信息,可选地,可以定义该列信息用于指示区分RANK组合是1+2或2+1,不同的panel对应的DMRS端口为顺序对应。例如,如下面表格2所示,在DMRS端口分配表中增加一列附加指示信息,该附加指示信息用于指示区分RANK组合是1+2或2+1。该DMRS端口分配表中,可以对应信息指示明确index0-2(即Value值为{0,1,2})指示1+2的组合,index3-5(即Value值为{3,4,5})对应指示2+1的组合。比如,Value值为0,对应的DMRS端口为{0,1,2},Value值{0}对应指示1+2的RANK组合,且不同的panel对应的DMRS端口为顺序对应,因此,可以确定第一个PUSCH传输时机(如panel#1)的DMRS端口为{0},确定第二个PUSCH传输时机(panel#2)的DMRS端口为{1,2}。又如,Value值为5,对应的DMRS端口为{3,4,5},Value值{5}对应指示2+1的RANK组合,且不同的panel对应的DMRS端口为顺序对应,因此,可以确定第一个PUSCH传 输时机(panel#1)的DMRS端口为{3,4},确定第二个PUSCH传输时机(panel#2)的DMRS端口为{5}。
表格2对于DMRS类型2,单符号的情况,RANK=3情况下配置的DMRS端口
在本公开的一些实施例中,该DMRS端口分配信息至少包括:为终端设备分配的DMRS端口集合和附加指示信息。其中,该附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,第一个PUSCH传输时机占用的DMRS端口属于DMRS端口集合中。
其中,在本公开的实施例中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;所述根据天线端口指示域和DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息的可能实现方式可以如下:根据DMRS端口集合和附加指示信息指示的第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为3。
举例而言,针对不支持1+3方式或3+1方式的RANK组合的情况,则两个panel/TRP/TCI state对应的PUSCH传输实际支持的RANK组合可以为1+1(总层数为2),1+2(总层数为3),2+1(总层数为3),2+2(总层数为4)。在天线端口指示域指示的总的RANK数为3的情况下,可以在DMRS端口分配表中增加相同的行数,并增加一列信息,可选地,可以定义该列信息用于指示第一个PUSCH传输时机(如panel#1)的DMRS端口。可以理解,这种方式较为灵活,增加后的DMRS端口分配表中对应的DCI比特数不变,不增加开销。
例如,如下面表格3所示,在DMRS端口分配表中增加一列附加指示信息,该附加指示信息用于指示第一个PUSCH传输时机(如panel#1)的DMRS端口,这样明确index0-5(即Value值为{0,1,2,3,4,5})对应指示1+2的RANK组合,index6-11(即Value值为{6,7,8,9,10,11})对应指示2+1的RANK组合。比如,Value值为5,对应的DMRS端口为{3,4,5},Value值{5}对应指示1+2的RANK组合,附加指示信息用于指示第一个PUSCH传输时机(如panel#1)的DMRS端口为{4},则可以确定第一个PUSCH传输时机(如panel#1)的DMRS端口为{4},确定第二个PUSCH传输时机(panel#2)的DMRS端口为{3,5}。又如,Value值为6,对应的DMRS端口为{0,1,2},Value值{6}对应指示2+1的RANK组合,附加指示信息用于指示第一个PUSCH传输时机(如panel#1)的DMRS端口为{0,1},则可以确定第一个PUSCH传输时机(如panel#1)的DMRS端口为{0,1},确定第二个PUSCH传输时机(panel#2)的 DMRS端口为{2}。
表格2对于DMRS类型2,单符号的情况,RANK=3情况下配置的DMRS端口
可选地,如果不支持1+3/3+1的RANK组合,则两个panel/TRP/TCI对应的PUSCH传输实际支持的RANK组合为1+1(总层数为2),1+2(总层数为3),2+1(总层数为3),2+2(总层数为4),则对应RANK3的DMRS端口分配,需要在DMRS端口分配表中增加相同的行数,并采用以下方案:默认方式并增加指示的信息定义(如增加一列),作为一种示例,该增加的列信息可以用于指示区分RANK组合是1+2或2+1,不同的panel对应的DMRS端口为顺序对应;作为另一种示例,该增加的列信息可以用于直接指示panel#1的DMRS端口(较为灵活);增加后的DMRS表格对应的DCI比特数不变,不增加开销。
在本公开的一些实施例中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机可以为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合。其中,在本公开的实施例中,所述根据天线端口指示域和DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的可能实现方式可以如下:根据DMRS端口集合,采用默认方式分别确定依次对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机支持第一RANK组合,且天线端口指示域指示的总的RANK数为2。
举例而言,针对支持1+3方式或3+1方式的RANK组合(如针对1个码字和2个码字的灵活分配映射)的情况,则两个panel/TRP/TCI state对应的PUSCH传输实际支持的RANK组合可以为1+1(总层数为2),1+2(总层数为3),2+1(总层数为3),2+2(总层数为4),1+3(总层数为4),3+1(总层数为4)。在天线端口指示域指示的总的RANK数为2的情况下,可以采用默认方式分别确定 依次对应分配给第一个PUSCH传输时机(如panel#1)和第二个PUSCH传输时机(panel#2)的DMRS端口数目。例如,通过DCI信令指示的端口具体为DMRS={2,3},则确定分配给第一个PUSCH传输时机(如panel#1)的DMRS端口为{2},分配给第二个PUSCH传输时机(panel#2)的DMRS端口为{3}。
在本公开的一些实施例中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机可以为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合,且DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合存在映射关系。其中,在本公开的实施例中,所述根据天线端口指示域和DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息的可能实现方式可以如下:根据DMRS端口集合和映射关系,采用默认预定义方式分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机支持第一RANK组合,且天线端口指示域指示的总的RANK数为3或4。
举例而言,针对支持1+3方式或3+1方式的RANK组合(如针对1个码字和2个码字的灵活分配映射)的情况,则两个panel/TRP/TCI state对应的PUSCH传输实际支持的RANK组合可以为1+1(总层数为2),1+2(总层数为3),2+1(总层数为3),2+2(总层数为4),1+3(总层数为4),3+1(总层数为4)。在天线端口指示域指示的总的RANK数为3或4的情况下,可以采用默认预定义方式分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目。例如,以DMRS类型2,单符号,RANK=3的DMRS端口分配表为例,可以默认预定义index0-2(即Value值为{0,1,2})指示1+2的RANK组合,index3-5(即Value值为{3,4,5})对应2+1的RANK组合,且端口顺序分配。又如,DMRS类型2,单符号,RANK=4的DMRS端口分配表为例,可以默认预定义index0-1(即Value值为{0,1})指示2+2的RANK组合,index2(即Value值为{2})指示1+3的RANK组合,index3-5(即Value值为{3,4,5})对应指示2+1的RANK组合,且端口顺序分配。
在本公开的一些实施例中,该DMRS端口分配信息至少包括:为终端设备分配的DMRS端口集合和附加指示信息。其中,该附加指示信息用于指示DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合之间的映射关系。作为一种示例,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个。其中,在本公开的实施例中,所述根据天线端口指示域和DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息的可能实现方式可如下:根据DMRS端口集合和该映射关系,确定将多个DMRS端口顺序分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机支持第一RANK组合,且天线端口指示域指示的总的RANK数为3或4。
举例而言,针对支持1+3方式或3+1方式的RANK组合(如针对1个码字和2个码字的灵活分配映射)的情况,则两个panel/TRP/TCI state对应的PUSCH传输实际支持的RANK组合可以为1+1(总层数为2),1+2(总层数为3),2+1(总层数为3),2+2(总层数为4),1+3(总层数为4),3+1(总层数为4)。在天线端口指示域指示的总的RANK数为3或4的情况下,可以在DMRS端口分配表中增加相同的行数,并增加一列信息,可选地,可以定义该列信息用于指示区分RANK3的组合是1+2或2+1,RANK4的组合是2+2,1+3或3+1,不同的panel对应的DMRS端口为顺序对应。
在本公开的一些实施例中,该DMRS端口分配信息可以至少包括:为终端设备分配的DMRS端口集合和附加指示信息。其中,该附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,第一个PUSCH传输时机占用的DMRS端口属于DMRS端口集合中。作为一种示例,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个。其中,在本公开的实施例中,根据天线端口指示域和DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息的可能实现方式可如下:根据DMRS端口集合和附加指示信息指示的第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息;其中,两个PUSCH传输时机支持第一RANK组合,且天线端口指示域指示的总的RANK数为3或4。
举例而言,针对支持1+3方式或3+1方式的RANK组合(如针对1个码字和2个码字的灵活分配映射)的情况,则两个panel/TRP/TCI state对应的PUSCH传输实际支持的RANK组合可以为1+1(总层数为2),1+2(总层数为3),2+1(总层数为3),2+2(总层数为4),1+3(总层数为4),3+1(总层数为4)。在天线端口指示域指示的总的RANK数为3或4的情况下,可以在DMRS端口分配表中增加相同的行数,并增加一列信息,可选地,可以定义该列信息用于指示第一个PUSCH传输时机(如panel#1)的DMRS端口。可以理解,这种方式较为灵活,增加后的DMRS端口分配表中对应的DCI比特数不变,不增加开销。
可选地,在本公开的实施例中,如果支持1+3方式或3+1方式的RANK组合(如针对1个码字和2个码字的灵活分配映射),实际支持的RANK组合为1+1,1+2,2+1,2+2,1+3,3+1,则可以默认对应指示的panel#1和panel#2的DMRS端口数目对于RANK2分别依次对应分配,即如DMRS={2,3},则默认panel#1的DMRS端口为{2},panel#2的DMRS端口为{3}。可选地,如果支持1+3方式或3+1方式的RANK组合(如针对1个码字和2个码字的灵活分配映射),实际支持的RANK组合为1+1,1+2,2+1,2+2,1+3,3+1,则对应RANK3、4的DMRS端口分配,需要在表格中增加不同的行数,并默认或增加定义(增加一列),其中,该增加的列信息可以用于指示区分RANK3组合是1+2或2+1,RANK4的组合是2+2,1+3或3+1,或者,该增加的列信息可以用于直接指示panel#1的DMRS端口(较为灵活);增加后的DMRS表格对应的DCI比特数不变,不增加开销。
可选地,本公开对于上行同时传输的PUSCH发送,还可以通过SRI/TPMI域和天线端口(antenna port)指示域共同解析得到RANK组合的具体分配情况。对于不同panel的预编码指示方法,考虑对于基于码本的PUSCH传输,可以通过DCI中的1个或者2个TPMI指示域得到RANK组合,对于基于非码本的PUSCH传输,可以通过DCI中的1个或2个SRI域得到RANK组合,同时结合天线端口的DMRS指示域指示的端口信息,可以得到不同panel上的DMRS端口信息。请参见图10,图10是本公开实施例提供的又一种上行解调参考信号端口确定方法的流程示意图。需要说明的是,本公开实施例的上行解调参考信号端口确定方法可由具有多天线面板panel的终端设备执行。如图10所示,该方法可以包括但不限于如下步骤:
在步骤1001中,基于单个DCI调度的SDM方式下的上行同时传输STxMP,接收网络侧设备根据DMRS端口分配表为终端设备分配的指示多个DMRS端口的DMRS端口分配信息。
其中,在本公开的实施例中,该DMRS端口分配信息用于确定关联对应不同的panel面向不同TRP 使用不同波束(panel/TRP/TCI state)上的PUSCH传输时机分别对应的DMRS端口信息;其中,不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息属于同一个码分复用CDM组或属于不同的CDM组。
本公开实施例中,不同的panel面向不同TRP进行PUSCH传输,而这些PUSCH传输采用不同的波束。其中,每一个PUSCH可以包括一个或多个PUSCH传输时机,其中,网络侧设备可以为每一个PUSCH传输时机配置DMRS端口信息。也就是说,针对多个PUSCH中的PUSCH传输时机可以相同,也可以不同;网络侧设备可以为每一个PUSCH的PUSCH传输时机,配置对应的DMRS端口信息。在一些实施方式中,不同的PUSCH对应于相同的PUSCH传输时机。在另一些实施例中,不同的PUSCH对应于不同的PUSCH传输时机。
可选地,本公开实施例中涉及的单个DCI还包括至少一个SRI和/或TPMI指示域,以及天线端口指示域,其中,至少一个SRI和/或TPMI指示域用于指示多个PUSCH传输时机对应的PUSCH实际传输对应的RANK组合;天线端口指示域用于指示为终端设备分配的总的DMRS端口集合。可以理解,在基于码本的传输时,需要使用SRI和TPMI域联合指示RANK组合,对于非码本的传输,则使用SRI域指示RANK组合。
在步骤1002中,根据至少一个SRI和/或TPMI指示域和天线端口指示域,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息。
在本公开的一些实施例中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机可以为两个。上述至少一个SRI和/或TPMI指示域可以包括两个SRI和/或TPMI指示域,其中,第一个SRI和/或TPMI指示域用于指示第一个PUSCH传输时机对应的RANK数;第二个SRI和/或TPMI指示域用于指示第二个PUSCH传输时机对应的RANK数。
其中,在本公开的实施例中,所述根据至少一个SRI和/或TPMI指示域和天线端口指示域,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息的可能实现方式可如下:根据第一个SRI和/或TPMI指示域指示的第一个PUSCH传输时机对应的RANK数和第二个SRI和/或TPMI指示域指示的第二个PUSCH传输时机对应的RANK数,确定两个PUSCH传输时机支持的RANK组合;根据两个PUSCH传输时机支持的RANK组合和天线端口指示域指示的为终端设备分配的DMRS端口集合,分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息。
例如,如果有两个SRI和/或TPMI的情况,则第一个SRI和/或TPMI可以指示第一个PUSCH传输时机(如Panel#1/TCI1/TRP1)对应的RANK数目,第二个SRI和/或TPMI可以指示第二个PUSCH传输时机(如Panel#2/TCI2/TRP2)对应的RANK数目。这样,可以利用两个SRI和/或TPMI指示域指示的RANK数,结合天线端口指示域指示的为终端设备分配的DMRS端口集合,可以分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息。
在本公开的一些实施例中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机可以为两个,上述至少一个SRI和/或TPMI指示域包括一个SRI和/或TPMI指示域,其中,该一个SRI和/或TPMI指示域的代码点对应指示两个有效的SRI和/或TPMI,其中,第一个有效的SRI和/或TPMI用于指示第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或 TPMI用于指示第二个PUSCH传输时机对应的RANK数。
其中,在本公开的实施例中,所述根据至少一个SRI和/或TPMI指示域和天线端口指示域,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息的可能实现方式可如下:根据第一个有效的SRI和/或TPMI指示的第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或TPMI指示的第二个PUSCH传输时机对应的RANK数,以及天线端口指示域指示的为终端设备分配的DMRS端口集合,采用预定义方式分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息。
例如,如果只有1个SRI和/或TPMI指示域的情况,则一个SRI codepoint(码点)和/或TPMI codepoint对应指示了两个有效的SRI和/或TPMI。例如,以非码本的传输为例,可以利用一个SRI codepoint(码点)对应指示了两个有效的SRI,其中第一个有效的SRI可以用于指示第一个PUSCH传输时机对应的RANK数,第二个有效的SRI用于指示第二个PUSCH传输时机对应的RANK数。又如,以码本的传输为例,可以利用一个SRI codepoint(码点)和TPMI codepoint联合指示RANK组合,一个SRI codepoint(码点)和TPMI codepoint对应指示了两个有效的SRI和TPMI,其中第一个有效的SRI和TPMI联合指示第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和TPMI联合指示第二个PUSCH传输时机对应的RANK数。在确定第一个有效的SRI和/或TPMI指示的第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或TPMI指示的第二个PUSCH传输时机对应的RANK数之后,可以根据第一个有效的SRI和/或TPMI指示的第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或TPMI指示的第二个PUSCH传输时机对应的RANK数,以及天线端口指示域指示的为终端设备分配的DMRS端口集合,按照预定义方式默认从较小的PUSCH传输时机号(如panel#1)开始分配DMRS端口,从而可以对应得到不同panel上的DMRS分配情况。
在一种可能的实现方式中,DMRS端口分配信息至少包括附加指示信息,该附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,其中,第一个PUSCH传输时机占用的DMRS端口属于DMRS端口集合中。其中,在本公开的实施例中,所述根据至少一个SRI和/或TPMI指示域和天线端口指示域,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息的可能实现方式可如下:根据第一个有效的SRI和/或TPMI指示的第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或TPMI指示的第二个PUSCH传输时机对应的RANK数,天线端口指示域指示的为终端设备分配的DMRS端口集合,以及附加指示信息指示的第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息。
例如,可以在DMRS端口分配表中增加相同的行数,并增加一列信息,可选地,可以定义该列信息用于指示第一个PUSCH传输时机(如panel#1/TCI1/TRP1)的DMRS端口。可以理解,这种方式较为灵活,增加后的DMRS端口分配表中对应的DCI比特数不变,不增加开销。
在本公开的实施例中,对于上行同时传输的PUSCH发送,通过SRI/TPMI域和antenna port域共同解析得到RANK组合的具体分配情况。对于不同panel的预编码指示方法,考虑对于基于码本的PUSCH传输,RANK组合可以通过DCI中的1个或者2个TPMI指示域分别得到,对于基于非码本的PUSCH传输,RANK组合可以通过DCI中的1个或2个SRI域得到,同时结合天线端口的DMRS指示域指示 的端口信息,根据下述实现方式可以得到不同panel上的DMRS端口信息。
实现方式1:如果有2个TPMI/SRI指示域的情况,则第一个SRI/TPMI域指示第Panel#1/TCI1/TRP1对应的RANK数目,第二个SRI/TPMI域指示第Panel#2/TCI2/TRP2对应的RANK数目。
实现方式2:如果只有1个TPMI/SRI指示域的情况,则一个SRIcodepoint/TPMI codepoint对应指示了两个有效的TPMI/SRI。可选地,增加预定义规则,例如,可以按照预定义方式默认从较小的如panel#1开始分配DMRS端口,对应得到不同panel上的DMRS分配情况。还可以增加预定义规则,如:默认方式并增加指示的信息定义(如在DMRS端口分配表中增加一列),该增加的列信息可以a)
用于直接指示panel#1/TCI1/TRP1的DMRS端口(较为灵活);增加后的DMRS表格对应的DCI比特数不变,不增加开销。
可选地,对于上行DMRS端口的分配,面向不同TRP的DMRS端口分配可以在同一个CDM组内,也可以来自不同CDM组。同时对于不同的码字支持的RANK组合情况也不一样,本公开在不增加现有协议开销的情况下可以实现基于S-DCI下对应多panel传输的不同DMRS端口指示。
通过实施本公开实施例,可以通过为基于多panel的终端设备分配用以指示多个DMRS端口的DMRS端口分配信息,以使得终端设备可以确定关联对应不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息,可以实现在SDM传输复用方式下考虑能够支持单用户多输入输出(SU-MIMO)和多用户多输入输出(MU-MIMO)的DMRS端口灵活分配指示的增强,从而提供了支持基于单个DCI的多panel上行同时传输方案,解决了在版本Rel-18的上行增强中如何通过多个TRP或面板的上行同时传输用于支持更高的吞吐率和更可靠的传输性能的问题。
可以理解,上述实施例是从终端设备侧描述本公开实施例的上行解调参考信号端口确定方法的实现方式。本公开实施例还提出了一种上行解调参考信号端口确定方法,下面将从网络侧设备侧描述该上行解调参考信号端口确定方法的实现方式。需要说明的是,针对相同的参数,其解释在终端设备和网络侧设备侧的实施方式中是相对应的,因此相同的参数不再重复进行说明。请参见图11,图11是本公开实施例提供的又一种上行解调参考信号端口确定方法的流程示意图。需要说明的是,本公开实施例的上行解调参考信号端口确定方法可由网络侧设备执行。如图11所示,该方法可以包括但不限于如下步骤:
在步骤1101中,根据解调参考信号DMRS端口分配表,为具有多天线面板panel的终端设备分配用于指示多个DMRS端口的DMRS端口分配信息。
在步骤1102中,向终端设备发送单个下行控制信息DCI;单个DCI包括DMRS端口分配信息,DMRS端口分配信息用于确定关联对应不同的panel面向不同发送接收点TRP使用不同波束上的物理上行共享信道PUSCH传输时机分别对应的DMRS端口信息;其中,不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息属于同一个码分复用CDM组或属于不同的CDM组。
本公开实施例中,不同的panel面向不同TRP进行PUSCH传输,而这些PUSCH传输采用不同的波束。其中,每一个PUSCH可以包括一个或多个PUSCH传输时机,其中,网络侧设备可以为每一个PUSCH传输时机配置DMRS端口信息。也就是说,针对多个PUSCH中的PUSCH传输时机可以相同,也可以不同;网络侧设备可以为每一个PUSCH的PUSCH传输时机,配置对应的DMRS端口信息。在 一些实施方式中,不同的PUSCH对应于相同的PUSCH传输时机。在另一些实施例中,不同的PUSCH对应于不同的PUSCH传输时机。
在本公开的一些实施例中,单个DCI还包括天线端口指示域,天线端口指示域用于指示总的用于传输PUSCH所对应的传输秩RANK数,总的RANK数大于1。其中,在本公开的实施例中,终端设备可以根据天线端口指示域和DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息。其中,该步骤可以分别采用本公开的各实施例中的任一种实现方式实现,本公开实施例并不对此作出限定,也不再赘述。
在本公开的一些实施例中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合。其中,在本公开的实施例中,终端设备可以根据DMRS端口集合,采用默认方式分别确定依次对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为2或4。
在本公开的实施例中,DCI信令中“antenna ports”指示域用于指示总的数据层数,即RANK数。
在本公开的一些实施例中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合,且DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合存在映射关系。其中,在一种可能的实现方式中,终端设备可以根据DMRS端口集合和该映射关系,采用默认预定义方式分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为3。
在本公开的一些实施例中,DMRS端口分配信息至少包括:为终端设备分配的DMRS端口集合和附加指示信息。其中,该附加指示信息用于指示DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合之间的映射关系。其中,在本公开的实施例中,终端设备可以根据DMRS端口集合和映射关系,确定将多个DMRS端口顺序分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为3。
在本公开的一些实施例中,DMRS端口分配信息至少包括:为终端设备分配的DMRS端口集合和附加指示信息。其中,该附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,第一个PUSCH传输时机占用的DMRS端口属于DMRS端口集合中。其中,在本公开的实施例中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;终端设备可以根据DMRS端口集合和附加指示信息指示的第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为3。
在本公开的一些实施例中,单个DCI还包括至少一个探测参考信号资源指示SRI和/或预编码矩阵指示TPMI指示域,以及天线端口指示域,其中,至少一个SRI和/或TPMI指示域用于指示多个PUSCH传输时机对应的PUSCH实际传输对应的RANK组合;天线端口指示域用于指示为终端设备分配的总的DMRS端口集合。
在一种实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,至少一个SRI和/或TPMI指示域包括两个SRI和/或TPMI指示域,其中,第一个SRI和/或TPMI指示域用于指示第一个PUSCH传输时机对应的RANK数;第二个SRI和/或TPMI指示域用于指示第二个PUSCH传输时机对应的RANK数。其中,在本公开的实施例中,终端设备可以根据第一个SRI和/或TPMI指示域指示的第一个PUSCH传输时机对应的RANK数和第二个SRI和/或TPMI指示域指示的第二个PUSCH传输时机对应的RANK数,确定两个PUSCH传输时机支持的RANK组合,并根据两个PUSCH传输时机支持的RANK组合和天线端口指示域指示的为终端设备分配的DMRS端口集合,分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息。
在另一种实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,至少一个SRI和/或TPMI指示域包括一个SRI和/或TPMI指示域,其中,一个SRI和/或TPMI指示域的代码点对应指示两个有效的SRI和/或TPMI,其中,第一个有效的SRI和/或TPMI用于指示第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或TPMI用于指示第二个PUSCH传输时机对应的RANK数。其中,在本公开的实施例中,终端设备可以根据第一个有效的SRI和/或TPMI指示的第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或TPMI指示的第二个PUSCH传输时机对应的RANK数,以及天线端口指示域指示的为终端设备分配的DMRS端口集合,采用预定义方式分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息。
在一种可能的实现方式中,DMRS端口分配信息至少包括附加指示信息,附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,其中,第一个PUSCH传输时机占用的DMRS端口属于DMRS端口集合中。其中,在本公开的实施例中,终端设备可以根据第一个有效的SRI和/或TPMI指示的第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或TPMI指示的第二个PUSCH传输时机对应的RANK数,天线端口指示域指示的为终端设备分配的DMRS端口集合,以及附加指示信息指示的第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息。
通过实施本公开实施例,可以通过网络侧设备为基于多panel的终端设备分配用以指示多个DMRS端口的DMRS端口分配信息,以使得终端设备可以确定关联对应不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息,可以实现在SDM传输复用方式下考虑能够支持单用户多输入输出(SU-MIMO)和多用户多输入输出(MU-MIMO)的DMRS端口灵活分配指示的增强,从而提供了支持基于单个DCI的多panel上行同时传输方案,解决了在版本Rel-18的上行增强中如何通过多个TRP或面板的上行同时传输用于支持更高的吞吐率和更可靠的传输性能的问题。
上述本公开提供的实施例中,分别从终端设备、网络侧设备的角度对本公开实施例提供的方法进行了介绍。为了实现上述本公开实施例提供的方法中的各功能,终端设备和网络侧设备可以包括硬件结构、软件模块,以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的 某个功能可以以硬件结构、软件模块、或者硬件结构加软件模块的方式来执行。
请参见图12,为本公开实施例提供的一种通信装置120的结构示意图。图12所示的通信装置120可包括收发模块1201和处理模块1202。收发模块1201可包括发送模块和/或接收模块,发送模块用于实现发送功能,接收模块用于实现接收功能,收发模块1201可以实现发送功能和/或接收功能。
通信装置120可以是终端设备,也可以是终端设备中的装置,还可以是能够与终端设备匹配使用的装置。或者,通信装置120可以是网络侧设备,也可以是网络侧设备中的装置,还可以是能够与网络侧设备匹配使用的装置。
通信装置120为终端设备:收发模块1201用于基于单个下行控制信息DCI调度的空分复用SDM方式下的上行同时传输STxMP,接收网络侧设备根据解调参考信号DMRS端口分配表为具有多天线面板panel的终端设备分配的指示多个DMRS端口的DMRS端口分配信息;其中,DMRS端口分配信息用于确定关联对应不同的panel面向不同发送接收点TRP使用不同波束上的物理上行共享信道PUSCH传输时机分别对应的DMRS端口信息;其中,不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息属于同一个码分复用CDM组或属于不同的CDM组。
在一种实现方式中,单个DCI还包括天线端口指示域,天线端口指示域用于指示总的用于传输PUSCH所对应的传输秩RANK数,总的RANK数大于1;处理模块1202根据天线端口指示域和DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合;其中,处理模块1202具体用于:根据DMRS端口集合,采用默认方式分别确定依次对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为2或4。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合,且DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合存在映射关系;其中,处理模块1202具体用于:根据DMRS端口集合和映射关系,采用默认预定义方式分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为3。
在一种可能的实现方式中,DMRS端口分配信息至少包括:为终端设备分配的DMRS端口集合;附加指示信息,附加指示信息用于指示DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合之间的映射关系。
其中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;处理模块1202具体用于:根据DMRS端口集合和映射关系,确定将多个DMRS端口顺序分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为3。
在一种可能的实现方式中,DMRS端口分配信息至少包括:为终端设备分配的DMRS端口集合; 附加指示信息,附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,第一个PUSCH传输时机占用的DMRS端口属于DMRS端口集合中。
其中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;处理模块1202具体用于:根据DMRS端口集合和附加指示信息指示的第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为3。
在一种实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合;其中,处理模块1202具体用于:根据DMRS端口集合,采用默认方式分别确定依次对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机支持第一RANK组合,且天线端口指示域指示的总的RANK数为2。
在一种实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合,且DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合存在映射关系;其中,处理模块1202具体用于:根据DMRS端口集合和映射关系,采用默认预定义方式分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机支持第一RANK组合,且天线端口指示域指示的总的RANK数为3或4。
其中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;处理模块1202具体用于:根据DMRS端口集合和映射关系,确定将多个DMRS端口顺序分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机支持第一RANK组合,且天线端口指示域指示的总的RANK数为3或4。
其中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;处理模块1202具体用于:根据DMRS端口集合和附加指示信息指示的第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息;其中,两个PUSCH传输时机支持第一RANK组合,且天线端口指示域指示的总的RANK数为3或4。
在一种可能的实现方式中,第一RANK组合为1+3方式或3+1方式的RANK组合。
在一种实现方式中,单个DCI还包括至少一个探测参考信号资源指示SRI和/或预编码矩阵指示TPMI指示域,以及天线端口指示域,其中,至少一个SRI和/或TPMI指示域用于指示多个PUSCH传输时机对应的PUSCH实际传输对应的RANK组合;天线端口指示域用于指示为终端设备分配的总的DMRS端口集合。
在一种可能的实现方式中,处理模块1202还用于:根据至少一个SRI和/或TPMI指示域和天线端口指示域,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联 的PUSCH传输时机为两个,至少一个SRI和/或TPMI指示域包括两个SRI和/或TPMI指示域,其中,第一个SRI和/或TPMI指示域用于指示第一个PUSCH传输时机对应的RANK数;第二个SRI和/或TPMI指示域用于指示第二个PUSCH传输时机对应的RANK数。
其中,处理模块1202具体用于:根据第一个SRI和/或TPMI指示域指示的第一个PUSCH传输时机对应的RANK数和第二个SRI和/或TPMI指示域指示的第二个PUSCH传输时机对应的RANK数,确定两个PUSCH传输时机支持的RANK组合;根据两个PUSCH传输时机支持的RANK组合和天线端口指示域指示的为终端设备分配的DMRS端口集合,分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,至少一个SRI和/或TPMI指示域包括一个SRI和/或TPMI指示域,其中,一个SRI和/或TPMI指示域的代码点对应指示两个有效的SRI和/或TPMI,其中,第一个有效的SRI和/或TPMI用于指示第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或TPMI用于指示第二个PUSCH传输时机对应的RANK数。
其中,处理模块1202具体用于:根据第一个有效的SRI和/或TPMI指示的第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或TPMI指示的第二个PUSCH传输时机对应的RANK数,以及天线端口指示域指示的为终端设备分配的DMRS端口集合,采用预定义方式分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息。
在一种可能的实现方式中,DMRS端口分配信息至少包括附加指示信息,附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,其中,第一个PUSCH传输时机占用的DMRS端口属于DMRS端口集合中。
其中,处理模块1202具体用于:根据第一个有效的SRI和/或TPMI指示的第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或TPMI指示的第二个PUSCH传输时机对应的RANK数,天线端口指示域指示的为终端设备分配的DMRS端口集合,以及附加指示信息指示的第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息。
通信装置120为网络侧设备:处理模块1202用于根据解调参考信号DMRS端口分配表,为具有多天线面板panel的终端设备分配用于指示多个DMRS端口的DMRS端口分配信息;收发模块1201用于向终端设备发送单个下行控制信息DCI;单个DCI包括DMRS端口分配信息,DMRS端口分配信息用于确定关联对应不同的panel面向不同发送接收点TRP使用不同波束上的物理上行共享信道PUSCH传输时机分别对应的DMRS端口信息;其中,不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息属于同一个码分复用CDM组或属于不同的CDM组。
在一种实现方式中,单个DCI还包括天线端口指示域,天线端口指示域用于指示总的用于传输PUSCH所对应的传输秩RANK数,总的RANK数大于1。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联 的PUSCH传输时机为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合,且DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合存在映射关系。
在一种可能的实现方式中,DMRS端口分配信息至少包括:为终端设备分配的DMRS端口集合;附加指示信息,附加指示信息用于指示DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合之间的映射关系。
在一种可能的实现方式中,DMRS端口分配信息至少包括:为终端设备分配的DMRS端口集合;附加指示信息,附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,第一个PUSCH传输时机占用的DMRS端口属于DMRS端口集合中。
在一种可能的实现方式中,单个DCI还包括至少一个探测参考信号资源指示SRI和/或预编码矩阵指示TPMI指示域,以及天线端口指示域,其中,至少一个SRI和/或TPMI指示域用于指示多个PUSCH传输时机对应的PUSCH实际传输对应的RANK组合;天线端口指示域用于指示为终端设备分配的总的DMRS端口集合。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,至少一个SRI和/或TPMI指示域包括两个SRI和/或TPMI指示域,其中,第一个SRI和/或TPMI指示域用于指示第一个PUSCH传输时机对应的RANK数;第二个SRI和/或TPMI指示域用于指示第二个PUSCH传输时机对应的RANK数。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,至少一个SRI和/或TPMI指示域包括一个SRI和/或TPMI指示域,其中,一个SRI和/或TPMI指示域的代码点对应指示两个有效的SRI和/或TPMI,其中,第一个有效的SRI和/或TPMI用于指示第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或TPMI用于指示第二个PUSCH传输时机对应的RANK数。
在一种可能的实现方式中,DMRS端口分配信息至少包括附加指示信息,附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,其中,第一个PUSCH传输时机占用的DMRS端口属于DMRS端口集合中。
关于上述实施例中的装置,其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述,此处将不做详细阐述说明。
请参见图13,图13是本公开实施例提供的另一种通信装置130的结构示意图。通信装置130可以是网络侧设备,也可以是终端设备,也可以是支持网络侧设备实现上述方法的芯片、芯片***、或处理器等,还可以是支持终端设备实现上述方法的芯片、芯片***、或处理器等。该装置可用于实现上述方法实施例中描述的方法,具体可以参见上述方法实施例中的说明。
通信装置130可以包括一个或多个处理器1301。处理器1301可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理,中央处理器可以用于对通信装置(如,基站、基带芯片,终端设备、终端设备芯片,DU或CU等)进行控制,执行计算机程序,处理计算机程序的数据。
可选的,通信装置130中还可以包括一个或多个存储器1302,其上可以存有计算机程序1304,处 理器1301执行所述计算机程序1304,以使得通信装置130执行上述方法实施例中描述的方法。可选的,所述存储器1302中还可以存储有数据。通信装置130和存储器1302可以单独设置,也可以集成在一起。
可选的,通信装置130还可以包括收发器1305、天线1306。收发器1305可以称为收发单元、收发机、或收发电路等,用于实现收发功能。收发器1305可以包括接收器和发送器,接收器可以称为接收机或接收电路等,用于实现接收功能;发送器可以称为发送机或发送电路等,用于实现发送功能。
可选的,通信装置130中还可以包括一个或多个接口电路1307。接口电路1307用于接收代码指令并传输至处理器1301。处理器1301运行所述代码指令以使通信装置130执行上述方法实施例中描述的方法。
通信装置130为终端设备:处理器1301用于执行图9中的步骤902;执行图10中的步骤1002。收发器1305用于执行图8中的步骤801;执行图9中的步骤901;执行图10中的步骤1001。
通信装置130为网络侧设备:收发器1305用于执行图11中的步骤1102。处理器1301用于执行图11中的步骤1101。
在一种实现方式中,处理器1301中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路,或者是接口,或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的,也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写,或者,上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中,处理器1301可以存有计算机程序,计算机程序在处理器1301上运行,可使得通信装置130执行上述方法实施例中描述的方法。计算机程序可能固化在处理器1301中,该种情况下,处理器1301可能由硬件实现。
在一种实现方式中,通信装置130可以包括电路,所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本公开中描述的处理器和收发器可实现在集成电路(integrated circuit,IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit,ASIC)、印刷电路板(printed circuit board,PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造,例如互补金属氧化物半导体(complementary metal oxide semiconductor,CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor,NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor,PMOS)、双极结型晶体管(bipolar junction transistor,BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是网络侧设备或者终端设备,但本公开中描述的通信装置的范围并不限于此,而且通信装置的结构可以不受图13的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是:
(1)独立的集成电路IC,或芯片,或,芯片***或子***;
(2)具有一个或多个IC的集合,可选的,该IC集合也可以包括用于存储数据,计算机程序的存储部件;
(3)ASIC,例如调制解调器(Modem);
(4)可嵌入在其他设备内的模块;
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、 网络侧设备、云设备、人工智能设备等等;
(6)其他等等。
对于通信装置可以是芯片或芯片***的情况,可参见图14所示的芯片的结构示意图。图14所示的芯片包括处理器1401和接口1402。其中,处理器1401的数量可以是一个或多个,接口1402的数量可以是多个。
对于芯片用于实现本公开实施例中终端设备的功能的情况:
接口1402,用于用于基于单个下行控制信息DCI调度的空分复用SDM方式下的上行同时传输STxMP,接收网络侧设备根据解调参考信号DMRS端口分配表为具有多天线面板panel的终端设备分配的指示多个DMRS端口的DMRS端口分配信息;其中,DMRS端口分配信息用于确定关联对应不同的panel面向不同发送接收点TRP使用不同波束上的物理上行共享信道PUSCH传输时机分别对应的DMRS端口信息;其中,不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息属于同一个码分复用CDM组或属于不同的CDM组。
在一种实现方式中,单个DCI还包括天线端口指示域,天线端口指示域用于指示总的用于传输PUSCH所对应的传输秩RANK数,总的RANK数大于1;处理器1401根据天线端口指示域和DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合;其中,处理器1401具体用于:根据DMRS端口集合,采用默认方式分别确定依次对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为2或4。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合,且DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合存在映射关系;其中,处理器1401具体用于:根据DMRS端口集合和映射关系,采用默认预定义方式分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为3。
在一种可能的实现方式中,DMRS端口分配信息至少包括:为终端设备分配的DMRS端口集合;附加指示信息,附加指示信息用于指示DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合之间的映射关系。
其中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;处理器1401具体用于:根据DMRS端口集合和映射关系,确定将多个DMRS端口顺序分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为3。
在一种可能的实现方式中,DMRS端口分配信息至少包括:为终端设备分配的DMRS端口集合;附加指示信息,附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,第一个PUSCH传 输时机占用的DMRS端口属于DMRS端口集合中。
其中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;处理器1401具体用于:根据DMRS端口集合和附加指示信息指示的第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息;其中,两个PUSCH传输时机不支持第一RANK组合,且天线端口指示域指示的总的RANK数为3。
在一种实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合;其中,处理器1401具体用于:根据DMRS端口集合,采用默认方式分别确定依次对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机支持第一RANK组合,且天线端口指示域指示的总的RANK数为2。
在一种实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合,且DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合存在映射关系;其中,处理器1401具体用于:根据DMRS端口集合和映射关系,采用默认预定义方式分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机支持第一RANK组合,且天线端口指示域指示的总的RANK数为3或4。
其中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;处理器1401具体用于:根据DMRS端口集合和映射关系,确定将多个DMRS端口顺序分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口数目;其中,两个PUSCH传输时机支持第一RANK组合,且天线端口指示域指示的总的RANK数为3或4。
其中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;处理器1401具体用于:根据DMRS端口集合和附加指示信息指示的第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息;其中,两个PUSCH传输时机支持第一RANK组合,且天线端口指示域指示的总的RANK数为3或4。
在一种可能的实现方式中,第一RANK组合为1+3方式或3+1方式的RANK组合。
在一种实现方式中,单个DCI还包括至少一个探测参考信号资源指示SRI和/或预编码矩阵指示TPMI指示域,以及天线端口指示域,其中,至少一个SRI和/或TPMI指示域用于指示多个PUSCH传输时机对应的PUSCH实际传输对应的RANK组合;天线端口指示域用于指示为终端设备分配的总的DMRS端口集合。
在一种可能的实现方式中,处理器1401还用于:根据至少一个SRI和/或TPMI指示域和天线端口指示域,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,至少一个SRI和/或TPMI指示域包括两个SRI和/或TPMI指示域,其中, 第一个SRI和/或TPMI指示域用于指示第一个PUSCH传输时机对应的RANK数;第二个SRI和/或TPMI指示域用于指示第二个PUSCH传输时机对应的RANK数。
其中,处理器1401具体用于:根据第一个SRI和/或TPMI指示域指示的第一个PUSCH传输时机对应的RANK数和第二个SRI和/或TPMI指示域指示的第二个PUSCH传输时机对应的RANK数,确定两个PUSCH传输时机支持的RANK组合;根据两个PUSCH传输时机支持的RANK组合和天线端口指示域指示的为终端设备分配的DMRS端口集合,分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,至少一个SRI和/或TPMI指示域包括一个SRI和/或TPMI指示域,其中,一个SRI和/或TPMI指示域的代码点对应指示两个有效的SRI和/或TPMI,其中,第一个有效的SRI和/或TPMI用于指示第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或TPMI用于指示第二个PUSCH传输时机对应的RANK数。
其中,处理器1401具体用于:根据第一个有效的SRI和/或TPMI指示的第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或TPMI指示的第二个PUSCH传输时机对应的RANK数,以及天线端口指示域指示的为终端设备分配的DMRS端口集合,采用预定义方式分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息。
在一种可能的实现方式中,DMRS端口分配信息至少包括附加指示信息,附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,其中,第一个PUSCH传输时机占用的DMRS端口属于DMRS端口集合中。
其中,处理器1401具体用于:根据第一个有效的SRI和/或TPMI指示的第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或TPMI指示的第二个PUSCH传输时机对应的RANK数,天线端口指示域指示的为终端设备分配的DMRS端口集合,以及附加指示信息指示的第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个PUSCH传输时机和第二个PUSCH传输时机的DMRS端口信息。
对于芯片用于实现本公开实施例中网络侧设备的功能的情况:
处理器1401用于根据解调参考信号DMRS端口分配表,为具有多天线面板panel的终端设备分配用于指示多个DMRS端口的DMRS端口分配信息;接口1402,用于向终端设备发送单个下行控制信息DCI;单个DCI包括DMRS端口分配信息,DMRS端口分配信息用于确定关联对应不同的panel面向不同发送接收点TRP使用不同波束上的物理上行共享信道PUSCH传输时机分别对应的DMRS端口信息;其中,不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息属于同一个码分复用CDM组或属于不同的CDM组。
在一种实现方式中,单个DCI还包括天线端口指示域,天线端口指示域用于指示总的用于传输PUSCH所对应的传输秩RANK数,总的RANK数大于1。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联 的PUSCH传输时机为两个,DMRS端口分配信息至少包括为终端设备分配的DMRS端口集合,且DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合存在映射关系。
在一种可能的实现方式中,DMRS端口分配信息至少包括:为终端设备分配的DMRS端口集合;附加指示信息,附加指示信息用于指示DMRS端口集合中的DMRS端口的索引与多个PUSCH传输时机支持的RANK组合之间的映射关系。
在一种可能的实现方式中,DMRS端口分配信息至少包括:为终端设备分配的DMRS端口集合;附加指示信息,附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,第一个PUSCH传输时机占用的DMRS端口属于DMRS端口集合中。
在一种可能的实现方式中,单个DCI还包括至少一个探测参考信号资源指示SRI和/或预编码矩阵指示TPMI指示域,以及天线端口指示域,其中,至少一个SRI和/或TPMI指示域用于指示多个PUSCH传输时机对应的PUSCH实际传输对应的RANK组合;天线端口指示域用于指示为终端设备分配的总的DMRS端口集合。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,至少一个SRI和/或TPMI指示域包括两个SRI和/或TPMI指示域,其中,第一个SRI和/或TPMI指示域用于指示第一个PUSCH传输时机对应的RANK数;第二个SRI和/或TPMI指示域用于指示第二个PUSCH传输时机对应的RANK数。
在一种可能的实现方式中,PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,至少一个SRI和/或TPMI指示域包括一个SRI和/或TPMI指示域,其中,一个SRI和/或TPMI指示域的代码点对应指示两个有效的SRI和/或TPMI,其中,第一个有效的SRI和/或TPMI用于指示第一个PUSCH传输时机对应的RANK数,第二个有效的SRI和/或TPMI用于指示第二个PUSCH传输时机对应的RANK数。
在一种可能的实现方式中,DMRS端口分配信息至少包括附加指示信息,附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,其中,第一个PUSCH传输时机占用的DMRS端口属于DMRS端口集合中。
可选的,芯片还包括存储器1403,存储器1403用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本公开实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件,或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个***的设计要求。本领域技术人员可以对于每种特定的应用,可以使用各种方法实现所述的功能,但这种实现不应被理解为超出本公开实施例保护的范围。
本公开实施例还提供一种确定侧链路时长的***,该***包括前述图12实施例中作为终端设备的通信装置和作为网络侧设备的通信装置,或者,该***包括前述图13实施例中作为终端设备的通信装置和作为网络侧设备的通信装置。
本公开还提供一种可读存储介质,其上存储有指令,该指令被计算机执行时实现上述任一方法实施例的功能。
本公开还提供一种计算机程序产品,该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行所述计算机程序时,全部或部分地产生按照本公开实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,高密度数字视频光盘(digital video disc,DVD))、或者半导体介质(例如,固态硬盘(solid state disk,SSD))等。
本领域普通技术人员可以理解:本公开中涉及的第一、第二等各种数字编号仅为描述方便进行的区分,并不用来限制本公开实施例的范围,也表示先后顺序。
本公开中的至少一个还可以描述为一个或多个,多个可以是两个、三个、四个或者更多个,本公开不做限制。在本公开实施例中,对于一种技术特征,通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征,该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
本公开中各表所示的对应关系可以被配置,也可以是预定义的。各表中的信息的取值仅仅是举例,可以配置为其他值,本公开并不限定。在配置信息与各参数的对应关系时,并不一定要求必须配置各表中示意出的所有对应关系。例如,本公开中的表格中,某些行示出的对应关系也可以不配置。又例如,可以基于上述表格做适当的变形调整,例如,拆分,合并等等。上述各表中标题示出参数的名称也可以采用通信装置可理解的其他名称,其参数的取值或表示方式也可以通信装置可理解的其他取值或表示方式。上述各表在实现时,也可以采用其他的数据结构,例如可以采用数组、队列、容器、栈、线性表、指针、链表、树、图、结构体、类、堆、散列表或哈希表等。
本公开中的预定义可以理解为定义、预先定义、存储、预存储、预协商、预配置、固化、或预烧制。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的***、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
以上所述,仅为本公开的具体实施方式,但本公开的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本公开揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本公开的保护范围之内。因此,本公开的保护范围应以所述权利要求的保护范围为准。
Claims (37)
- 一种上行解调参考信号端口确定方法,其特征在于,所述方法由具有多天线面板panel的终端设备执行,所述方法包括:基于单个下行控制信息DCI调度的空分复用SDM方式下的上行同时传输STxMP,接收网络侧设备根据解调参考信号DMRS端口分配表为所述终端设备分配的指示多个DMRS端口的DMRS端口分配信息;其中,所述DMRS端口分配信息用于确定关联对应不同的panel面向不同发送接收点TRP使用不同波束上的物理上行共享信道PUSCH传输时机分别对应的DMRS端口信息;其中,所述不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息属于同一个码分复用CDM组或属于不同的CDM组。
- 如权利要求1所述的方法,其特征在于,所述单个DCI还包括天线端口指示域,所述天线端口指示域用于指示总的用于传输PUSCH所对应的传输秩RANK数,所述总的RANK数大于1;所述方法还包括:根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息。
- 如权利要求2所述的方法,其特征在于,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述DMRS端口分配信息至少包括为所述终端设备分配的DMRS端口集合;其中,根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:根据所述DMRS端口集合,采用默认方式分别确定依次对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口数目;其中,所述两个PUSCH传输时机不支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为2或4。
- 如权利要求2所述的方法,其特征在于,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述DMRS端口分配信息至少包括为所述终端设备分配的DMRS端口集合,且所述DMRS端口集合中的DMRS端口的索引与所述多个PUSCH传输时机支持的RANK组合存在映射关系;其中,所述根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:根据所述DMRS端口集合和所述映射关系,采用默认预定义方式分别确定对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口数目;其中,所述两个PUSCH传输时机不支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为3。
- 如权利要求2所述的方法,其特征在于,所述DMRS端口分配信息至少包括:为所述终端设备分配的DMRS端口集合;附加指示信息,所述附加指示信息用于指示所述DMRS端口集合中的DMRS端口的索引与所述多个PUSCH传输时机支持的RANK组合之间的映射关系。
- 如权利要求5所述的方法,其特征在于,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;所述根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:根据所述DMRS端口集合和所述映射关系,确定将所述多个DMRS端口顺序分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口数目;其中,所述两个PUSCH传输时机不支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为3。
- 如权利要求2所述的方法,其特征在于,所述DMRS端口分配信息至少包括:为所述终端设备分配的DMRS端口集合;附加指示信息,所述附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,所述第一个PUSCH传输时机占用的DMRS端口属于所述DMRS端口集合中。
- 如权利要求7所述的方法,其特征在于,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;所述根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:根据所述DMRS端口集合和所述附加指示信息指示的所述第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口信息;其中,所述两个PUSCH传输时机不支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为3。
- 如权利要求2所述的方法,其特征在于,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述DMRS端口分配信息至少包括为所述终端设备分配的DMRS端口集合;其中,根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的,包括:根据所述DMRS端口集合,采用默认方式分别确定依次对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口数目;其中,所述两个PUSCH传输时机支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为2。
- 如权利要求2所述的方法,其特征在于,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述DMRS端口分配信息至少包括为所述终端设备分配的DMRS端口集合,且所述DMRS端口集合中的DMRS端口的索引与所述多个PUSCH传输时机支持的RANK组合存在映射关系;其中,根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:根据所述DMRS端口集合和所述映射关系,采用默认预定义方式分别确定对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口数目;其中,所述两个PUSCH传输时机支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为3或4。
- 如权利要求5所述的方法,其特征在于,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;所述根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:根据所述DMRS端口集合和所述映射关系,确定将所述多个DMRS端口顺序分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口数目;其中,所述两个PUSCH传输时机支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为3或4。
- 如权利要求7所述的方法,其特征在于,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个;所述根据所述天线端口指示域和所述DMRS端口分配信息,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:根据所述DMRS端口集合和所述附加指示信息指示的所述第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口信息;其中,所述两个PUSCH传输时机支持第一RANK组合,且所述天线端口指示域指示的总的RANK数为3或4。
- 如权利要求3-4、6、8-12中任一项所述的方法,其特征在于,所述第一RANK组合为1+3方式或3+1方式的RANK组合。
- 如权利要求1所述的方法,其特征在于,所述单个DCI还包括至少一个探测参考信号资源指示SRI和/或预编码矩阵指示TPMI指示域,以及天线端口指示域,其中,所述至少一个SRI和/或TPMI指示域用于指示所述多个PUSCH传输时机对应的PUSCH实际传输对应的RANK组合;所述天线端口指示域用于指示为所述终端设备分配的总的DMRS端口集合。
- 如权利要求14所述的方法,其特征在于,所述方法还包括:根据所述至少一个SRI和/或TPMI指示域和所述天线端口指示域,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息。
- 如权利要求15所述的方法,其特征在于,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述至少一个SRI和/或TPMI指示域包括两个SRI和/或TPMI指示域,其中,第一个所述SRI和/或TPMI指示域用于指示第一个所述PUSCH传输时机对应的RANK数;第二个所述SRI和/或TPMI指示域用于指示第二个所述PUSCH传输时机对应的RANK数。
- 如权利要求16所述的方法,其特征在于,所述根据所述至少一个SRI和/或TPMI指示域和所述天线端口指示域,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:根据第一个所述SRI和/或TPMI指示域指示的第一个所述PUSCH传输时机对应的RANK数和第二个所述SRI和/或TPMI指示域指示的第二个所述PUSCH传输时机对应的RANK数,确定所述两个PUSCH传输时机支持的RANK组合;根据所述两个PUSCH传输时机支持的RANK组合和所述天线端口指示域指示的为所述终端设备分配的DMRS端口集合,分别确定对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口信息。
- 如权利要求15所述的方法,其特征在于,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述至少一个SRI和/或TPMI指示域包括一个SRI和/或TPMI指示域,其中,所述一个SRI和/或TPMI指示域的代码点对应指示两个有效的SRI和/或TPMI,其中,第一个所述有效的SRI和/或TPMI用于指示第一个所述PUSCH传输时机对应的RANK数,第二个所述有效的SRI和/或TPMI用于指示第二个所述PUSCH传输时机对应的RANK数。
- 如权利要求18所述的方法,其特征在于,所述根据所述至少一个SRI和/或TPMI指示域和所述天线端口指示域,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:根据第一个所述有效的SRI和/或TPMI指示的第一个所述PUSCH传输时机对应的RANK数,第二个所述有效的SRI和/或TPMI指示的第二个所述PUSCH传输时机对应的RANK数,以及所述天线端口指示域指示的为所述终端设备分配的DMRS端口集合,采用预定义方式分别确定对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口信息。
- 如权利要求18所述的方法,其特征在于,所述DMRS端口分配信息至少包括附加指示信息, 所述附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,其中,所述第一个PUSCH传输时机占用的DMRS端口属于所述DMRS端口集合中。
- 如权利要求20所述的方法,其特征在于,所述根据所述至少一个SRI和/或TPMI指示域和所述天线端口指示域,确定为PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机配置的DMRS端口信息,包括:根据第一个所述有效的SRI和/或TPMI指示的第一个所述PUSCH传输时机对应的RANK数,第二个所述有效的SRI和/或TPMI指示的第二个所述PUSCH传输时机对应的RANK数,所述天线端口指示域指示的为所述终端设备分配的DMRS端口集合,以及所述附加指示信息指示的所述第一个PUSCH传输时机占用的DMRS端口,分别确定对应分配给第一个所述PUSCH传输时机和第二个所述PUSCH传输时机的DMRS端口信息。
- 一种上行解调参考信号端口确定方法,其特征在于,所述方法由网络侧设备执行,所述方法包括:根据解调参考信号DMRS端口分配表,为具有多天线面板panel的终端设备分配用于指示多个DMRS端口的DMRS端口分配信息;向所述终端设备发送单个下行控制信息DCI;所述单个DCI包括所述DMRS端口分配信息,所述DMRS端口分配信息用于确定关联对应不同的panel面向不同发送接收点TRP使用不同波束上的物理上行共享信道PUSCH传输时机分别对应的DMRS端口信息;其中,所述不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息属于同一个码分复用CDM组或属于不同的CDM组。
- 如权利要求22所述的方法,其特征在于,所述单个DCI还包括天线端口指示域,所述天线端口指示域用于指示总的用于传输PUSCH所对应的传输秩RANK数,所述总的RANK数大于1。
- 如权利要求23所述的方法,其特征在于,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述DMRS端口分配信息至少包括为所述终端设备分配的DMRS端口集合。
- 如权利要求23所述的方法,其特征在于,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述DMRS端口分配信息至少包括为所述终端设备分配的DMRS端口集合,且所述DMRS端口集合中的DMRS端口的索引与所述多个PUSCH传输时机支持的RANK组合存在映射关系。
- 如权利要求23所述的方法,其特征在于,所述DMRS端口分配信息至少包括:为所述终端设备分配的DMRS端口集合;附加指示信息,所述附加指示信息用于指示所述DMRS端口集合中的DMRS端口的索引与所述多个PUSCH传输时机支持的RANK组合之间的映射关系。
- 如权利要求23所述的方法,其特征在于,所述DMRS端口分配信息至少包括:为所述终端设备分配的DMRS端口集合;附加指示信息,所述附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,所述第一个PUSCH传输时机占用的DMRS端口属于所述DMRS端口集合中。
- 如权利要求22所述的方法,其特征在于,所述单个DCI还包括至少一个探测参考信号资源指示SRI和/或预编码矩阵指示TPMI指示域,以及天线端口指示域,其中,所述至少一个SRI和/或TPMI指示域用于指示所述多个PUSCH传输时机对应的PUSCH实际传输对应的RANK组合;所述天线端口指示域用于指示为所述终端设备分配的总的DMRS端口集合。
- 如权利要求28所述的方法,其特征在于,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述至少一个SRI和/或TPMI指示域包括两个SRI和/或TPMI指示域,其中,第一个所述SRI和/或TPMI指示域用于指示第一个所述PUSCH传输时机对应的RANK数;第二个所述SRI和/或TPMI指示域用于指示第二个所述PUSCH传输时机对应的RANK数。
- 如权利要求28所述的方法,其特征在于,所述PUSCH在不同的panel面向不同发送接收点TRP使用不同波束上关联的PUSCH传输时机为两个,所述至少一个SRI和/或TPMI指示域包括一个SRI和/或TPMI指示域,其中,所述一个SRI和/或TPMI指示域的代码点对应指示两个有效的SRI和/或TPMI,其中,第一个所述有效的SRI和/或TPMI用于指示第一个所述PUSCH传输时机对应的RANK数,第二个所述有效的SRI和/或TPMI用于指示第二个所述PUSCH传输时机对应的RANK数。
- 如权利要求30所述的方法,其特征在于,所述DMRS端口分配信息至少包括附加指示信息,所述附加指示信息用于指示第一个PUSCH传输时机占用的DMRS端口,其中,所述第一个PUSCH传输时机占用的DMRS端口属于所述DMRS端口集合中。
- 一种通信装置,其特征在于,包括:收发模块,用于基于单个下行控制信息DCI调度的空分复用SDM方式下的上行同时传输STxMP,接收网络侧设备根据解调参考信号DMRS端口分配表为具有多天线面板panel的终端设备分配的指示多个DMRS端口的DMRS端口分配信息;其中,所述DMRS端口分配信息用于确定关联对应不同的panel面向不同发送接收点TRP使用不 同波束上的物理上行共享信道PUSCH传输时机分别对应的DMRS端口信息;其中,所述不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息属于同一个码分复用CDM组或属于不同的CDM组。
- 一种通信装置,其特征在于,包括:处理模块,用于根据解调参考信号DMRS端口分配表,为具有多天线面板panel的终端设备分配用于指示多个DMRS端口的DMRS端口分配信息;收发模块,用于向所述终端设备发送单个下行控制信息DCI;所述单个DCI包括所述DMRS端口分配信息,所述DMRS端口分配信息用于确定关联对应不同的panel面向不同发送接收点TRP使用不同波束上的物理上行共享信道PUSCH传输时机分别对应的DMRS端口信息;其中,所述不同的panel面向不同发送接收点TRP使用不同波束上的PUSCH传输时机分别对应的DMRS端口信息属于同一个码分复用CDM组或属于不同的CDM组。
- 一种通信装置,其特征在于,所述装置包括处理器和存储器,所述存储器中存储有计算机程序,所述处理器执行所述存储器中存储的计算机程序,以使所述装置执行如权利要求1至21中任一项所述的方法。
- 一种通信装置,其特征在于,所述装置包括处理器和存储器,所述存储器中存储有计算机程序,所述处理器执行所述存储器中存储的计算机程序,以使所述装置执行如权利要求22至31中任一项所述的方法。
- 一种计算机可读存储介质,用于存储有指令,当所述指令被执行时,使如权利要求1至21中任一项所述的方法被实现。
- 一种计算机可读存储介质,用于存储有指令,当所述指令被执行时,使如权利要求22至31中任一项所述的方法被实现。
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