WO2024031504A1 - 一种信号发送、信号接收方法、装置、设备及存储介质 - Google Patents
一种信号发送、信号接收方法、装置、设备及存储介质 Download PDFInfo
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- 238000004891 communication Methods 0.000 abstract description 15
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- 238000005516 engineering process Methods 0.000 description 7
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- 230000011664 signaling Effects 0.000 description 3
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- 238000004458 analytical method Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
Definitions
- the present application relates to the field of communication technology, and in particular to a signal transmission and signal reception method, device, equipment and storage medium.
- MIMO Multiple Input Multiple Output, Multiple Input Multiple Output
- NR New RAT, New Access Technology
- MIMO scenarios there is a constant demand for multiplexing capacity of DMRS (De-Modulation Reference Signal) of DL (Down Link) and UL (Up Link) from various use cases. Increase, which requires CP-OFDM (Cyclic Prefix-Orthogonal Frequency Division Multiplexing, Cyclic Prefix-Orthogonal Frequency Division Multiplexing) waveform to support more DMRS ports.
- DMRS De-Modulation Reference Signal
- DL Down Link
- UL Up Link
- CP-OFDM Cyclic Prefix-Orthogonal Frequency Division Multiplexing
- waveform to support more DMRS ports.
- the purpose of the embodiments of the present application is to provide a signal sending and receiving method, device, equipment and storage medium to increase the number of DMRS ports supported by the CP-OFDM waveform.
- the specific technical solutions are as follows:
- embodiments of the present application provide a signal sending method, which is applied to the first communicating party.
- the method includes:
- the first communicating party is a base station
- the second communicating party is a UE (User Equipment, User Equipment), or the first communicating party is a UE, and the second communicating party is a base station.
- embodiments of the present application provide a signal receiving method, which is applied to the second communicating party.
- the method includes:
- the first communicating party is a base station and the second communicating party is a UE, or the first communicating party is a UE and the second communicating party is a base station.
- inventions of the present application provide a signal sending device, which is applied to the first communicating party.
- the device includes:
- a determining unit configured to determine the DMRS port corresponding to the reference signal that needs to be sent to the second communicating party in the DMRS port group, and each DMRS port in the DMRS port group occupies one resource element on average;
- a sending unit configured to use the DMRS port to send the reference signal
- the first communicating party is a base station and the second communicating party is a UE, or the first communicating party is a UE and the second communicating party is a base station.
- inventions of the present application provide a signal receiving device, which is applied to the second communicating party.
- the device includes:
- a determining unit configured to determine the DMRS port corresponding to the reference signal that the first communicating party needs to send in the DMRS port group, and each DMRS port in the DMRS port group occupies one resource element on average;
- a receiving unit configured to receive the reference signal sent using the DMRS port
- the first communicating party is a base station and the second communicating party is a UE, or the first communicating party is a UE and the second communicating party is a base station.
- embodiments of the present application provide an electronic device, including a processor and a machine-readable storage medium.
- the machine-readable storage medium stores machine-executable instructions that can be executed by the processor. The processing The machine is prompted by the machine-executable instructions to: implement any of the method steps provided in the first aspect, or implement any of the method steps provided in the second aspect.
- embodiments of the present application provide a computer-readable storage medium.
- a computer program is stored in the computer-readable storage medium.
- the computer program is executed by a processor, any one of the aspects provided in the first aspect is implemented. method steps, or implement any of the method steps provided in the second aspect.
- embodiments of the present application provide a computer program that, when executed by a processor, implements any of the method steps provided in the first aspect, or implements any of the method steps provided in the second aspect. Method steps.
- the first communicating party when receiving or sending a reference signal, uses the corresponding DMRS port in the DMRS port group to send the reference signal to the second communicating party.
- Each DMRS port in the DMRS port group The ports occupy one RE on average.
- the CP-OFDM waveform can support the maximum number of DMRS ports to reach the number of REs included in the OFDM symbols occupied by the DMRS port group.
- Figure 1 is a first schematic diagram of DMRS port groups occupying OFDM symbols in related technologies
- Figure 2 is a second schematic diagram of DMRS port groups occupying OFDM symbols in related technologies
- Figure 3 is a schematic flow chart of a signal sending method provided by an embodiment of the present application.
- Figure 4 is a schematic diagram of a single OFDM symbol provided by an embodiment of the present application.
- Figure 5 is a first schematic diagram of dual OFDM symbols provided by an embodiment of the present application.
- Figure 6 is a second schematic diagram of dual OFDM symbols provided by an embodiment of the present application.
- Figure 7 is a third schematic diagram of dual OFDM symbols provided by an embodiment of the present application.
- Figure 8 is a fourth schematic diagram of dual OFDM symbols provided by an embodiment of the present application.
- Figure 9 is a schematic diagram of the frequency domain offset corresponding to a in Figure 5, a in Figure 6, and a in Figure 7;
- Figure 10 is a fifth schematic diagram of dual OFDM symbols provided by an embodiment of the present application.
- Figure 11 is a schematic diagram of the DMRS port group implemented by pre- and incremental DMRS provided by the embodiment of the present application;
- Figure 12 is a schematic diagram of a DMRS port group implemented by pre-DMRS provided by an embodiment of the present application
- Figure 13 is a schematic diagram of incremental DMRS implementation DMRS port group provided by the embodiment of the present application.
- Figure 14 is a schematic diagram of DMRS port group occupancy compliance for continuous time slots provided by the embodiment of the present application.
- Figure 15 is a schematic diagram of implementing DMRS port group occupancy compliance across time slots according to an embodiment of the present application.
- Figure 16 is a schematic flow chart of a first signal receiving method provided by an embodiment of the present application.
- Figure 17 is a second flow diagram of the signal receiving method provided by the embodiment of the present application.
- Figure 18 is a schematic structural diagram of a signal sending device provided by an embodiment of the present application.
- Figure 19 is a first structural schematic diagram of a signal receiving device provided by an embodiment of the present application.
- Figure 20 is a second structural schematic diagram of a signal receiving device provided by an embodiment of the present application.
- Figure 21 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
- DMRS is used for channel estimation and demodulation of uplink and downlink reference signals.
- a DMRS port group occupies one or more OFDM symbols.
- a DMRS port group includes multiple DMRS ports and/or CDM (Code Division Multiplexing) groups.
- a CDM group includes multiple DMRS ports. DMRS ports in the same CDM group cannot be distinguished through the time domain or frequency domain, but can only be distinguished through the code domain.
- the symbols described in the embodiments of this application are OFDM symbols, and one OFDM symbol includes 12 REs (Resource Elements).
- MIMO is one of the key technologies in NR systems.
- 3GPP 3rd Generation Partnership Project, 3rd Generation Partnership Project
- Rel Release, candidate version
- FDD Frequency Division Duplex, frequency division duplex
- TDD Time Division Duplex, time division Duplex
- the main content is: the necessary enhancements of UL MIMO need to be identified and standardized, and the necessary enhancements of DL MIMO need to be introduced to meet the evolution requirements of NR deployment, thus helping to apply to FR1 (Frequency Range 1 , Frequency Range 1) and FR2 (Frequency Range 2, Frequency Range 2) use of large antenna arrays.
- FR1 Frequency Range 1 , Frequency Range 1
- FR2 Frequency Range 2, Frequency Range 2
- the orthogonal port used for transmitting DMRS is the DMRS port mentioned in the embodiment of this application.
- the technical solution provided by the embodiment of the present application is based on the solution designed above, which increases the number of DMRS ports supported by the CP-OFDM waveform.
- DMRS in existing standards is divided into DMRS configuration type 1 and DMRS configuration type 2.
- the DMRS port group occupies one OFDM symbol and can support 4 orthogonal DMRS ports, as shown in a in Figure 1; the DMRS port group occupies two OFDM symbols and can support up to 8 orthogonal DMRS ports.
- a rectangular box represents an RE
- a column of rectangular boxes represents an OFDM symbol.
- the rectangular box with the number 0 represents the RE occupied by a CDM group.
- the CDM group includes DMRS port 0 and DMRS port 1; the rectangular box with the number 1 represents the RE occupied by a CDM group.
- the CDM The group includes DMRS port 2 and DMRS port 3. It can be seen that when the DMRS port group occupies one OFDM symbol, that is, when a single OFDM symbol is used, a maximum of 4 DMRS ports are supported.
- the rectangular box with the number 0 represents the RE occupied by a CDM group.
- the CDM group includes DMRS port 0, DMRS port 1, DMRS port 4 and DMRS port 5; the rectangular box with the number 1 represents a CDM RE occupied by the group.
- the CDM group includes DMRS port 2, DMRS port 3, DMRS port 6 and DMRS port 7. It can be seen that when the DMRS port group occupies two OFDM symbols, that is, in the case of dual OFDM symbols, it supports up to 8 DMRS ports.
- a single OFDM symbol can support up to 6 orthogonal DMRS ports, as shown in a in Figure 2; dual OFDM symbols can support up to 12 orthogonal DMRS ports, as shown in b in Figure 2 .
- a rectangular box represents an RE
- a column of rectangular boxes represents an OFDM symbol.
- the rectangular box with the number 0 represents the RE occupied by a CDM group.
- the CDM group includes DMRS port 0 and DMRS port 1; the rectangular box with the number 1 represents the RE occupied by a CDM group.
- the CDM group includes DMRS port 2 and DMRS port 3; the rectangular box where the number 2 is located is a CDM group, and the CDM group includes DMRS port 4 and DMRS port 5. It can be seen that in the case of a single OFDM symbol, up to 6 DMRS ports are supported.
- the rectangular box with the number 0 represents the RE occupied by a CDM group.
- the CDM group includes DMRS port 0, DMRS port 1, DMRS port 6 and DMRS port 7;
- the rectangular box with the number 1 represents a CDM RE occupied by the group, the CDM group includes DMRS port 2, DMRS port 3, DMRS port 8 and DMRS port 9;
- the rectangular box where the number 2 is located is a CDM group, the CDM group includes DMRS port 4, DMRS port 5, DMRS Port 10 and DMRS port 11. It can be seen that in the case of dual OFDM symbols, up to 12 DMRS ports are supported.
- embodiments of the present application provide a signal sending method and a signal receiving method, in which the first communicating party uses the corresponding DMRS port in the DMRS port group to send a reference signal to the second communicating party.
- Each communication party in the DMRS port group Each DMRS port occupies one RE on average.
- the CP-OFDM waveform can support the maximum number of DMRS ports to reach the number of REs included in the OFDM symbols occupied by the DMRS port group.
- FIG. 3 is a schematic flow chart of a signal sending method provided by an embodiment of the present application.
- This method can be applied to a first communicating party, which can be a base station or a UE.
- the second communicating party is a UE.
- the first communicating party is a UE
- the second communicating party for the base station.
- the UE may be an advanced UE such as CPE (Customer Premise Equipment), FWA (Fixed Wireless Access), vehicles, and industrial equipment.
- CPE Customer Premise Equipment
- FWA Wireless Wireless Access
- the above signal sending method includes the following steps:
- Step S31 Determine the DMRS port corresponding to the reference signal that needs to be sent to the second communicating party in the DMRS port group.
- Each DMRS port in the DMRS port group occupies one RE on average.
- Step S32 Use the DMRS port to send the reference signal.
- the first communicating party when sending a reference signal, uses the corresponding DMRS port in the DMRS port group to send the reference signal to the second communicating party.
- Each DMRS port in the DMRS port group averages Occupying one RE, in this way, the CP-OFDM waveform can support the maximum number of DMRS ports reaching the number of REs included in the OFDM symbols occupied by the DMRS port group.
- the base station can pre-set the number of symbols occupied by the DMRS port group, the symbols occupied by the DMRS port group, the DMRS ports and CDM groups included in the DMRS port group, and the number of each DMRS port.
- the CDM group includes The number of each DMRS port, etc.
- Each DMRS port in the DMRS port group is orthogonal in the time domain, frequency domain or code domain.
- DMRS includes pre-DMRS and incremental DMRS.
- the DMRS port group in the embodiment of the present application can be used as a pre-DMRS port or an incremental DMRS port. That is, the DMRS port group can be located at the pre-symbol position or at the pre-symbol position. Increment symbol position.
- the number of prefix symbols can be set according to actual needs. For example, the number of prefix symbols is 3, that is, the first 3 symbols are prefix symbols, and the incremental symbol is the symbol at any position after the prefix symbol.
- Incremental DMRS ports are used in medium/high-speed scenarios to meet the estimation accuracy of channel time variability.
- the incremental DMRS port is just a copy of the front DMRS port, that is, the incremental DMRS port and the front DMRS port must maintain the number of DMRS ports, sequence, number of occupied OFDM symbols, and OCC (Orthogonal Cover Code, orthogonal cover code) consistent. Therefore, when the front-end DMRS is designed, there is no need to design additional incremental DMRS.
- the following DMRS port group design takes the front DMRS port as an example.
- the number of symbols occupied by the DMRS port group is 1, that is, one OFDM symbol occupied by the DMRS port group, that is, a single OFDM symbol.
- each DMRS port included in the DMRS port group can occupy 1 RE according to frequency division multiplexing, as shown in a in Figure 4.
- a rectangular box represents an RE
- a column of rectangular boxes represents a symbol.
- the rectangular boxes with numbers 0-11 respectively represent REs occupied by one DMRS port.
- the number of the DMRS port corresponding to the rectangular box of each number can be set according to actual needs.
- the number of the DMRS port corresponding to the rectangular box with each number can be set sequentially.
- the number of the DMRS port corresponding to the rectangular box with the number 0 is 0, and the number of the DMRS port corresponding to the rectangular box with the number 1 is 1.
- the DMRS port number corresponding to the rectangular box with number 2 is 3, and so on.
- the number of the DMRS port corresponding to each numerical rectangular box can also be set at specified intervals. For example, if the specified value is 2, the number of the DMRS port corresponding to the rectangular box with the number 0 is 0, and the number of the DMRS port corresponding to the rectangular box with the number 1 is The number is 2, and the number of the DMRS port corresponding to the rectangular box with number 2 is 4, and so on.
- the embodiment of the present application supports up to 12 DMRS ports. This will not increase the overhead of DMRS in Rel-15/16/17, keeping the front DMRS only occupying 1 OFDM symbol, while increasing the number of DMRS ports supported in the case of a single OFDM symbol.
- the number of symbols occupied by the DMRS port group is 1, that is, one OFDM symbol occupied by the DMRS port group, that is, a single OFDM symbol.
- each CDM group included in the DMRS port group follows the frequency domain CDM method of the first preset length. Occupying the first preset number of REs, the value of the first preset number is the same as the value of the first preset length, and the value of the first preset number is greater than or equal to 2.
- each CDM group includes 2 DMRS ports.
- each CDM included in the DMRS port group occupies 2 REs, as shown in b in Figure 4.
- a rectangular box represents an RE
- a column of rectangular boxes represents a symbol.
- the rectangular boxes with numbers 0-5 respectively represent the REs occupied by a CDM group.
- the number of DMRS ports included in each CDM group can be set according to actual needs.
- the numbers of DMRS ports included in each CDM group can be set sequentially.
- the DMRS ports are numbered 0 and 1
- the DMRS ports are numbered 2 and 3
- the DMRS ports corresponding to the rectangular box with the number 3 are Numbered 4 and 5, and so on.
- the number of the DMRS port can also be set at a specified interval. For example, if the specified value is 2, in the CDM group corresponding to the rectangular box with the number 0, the DMRS port numbers are 0 and 2. In the CDM group corresponding to the rectangular box with the number 1, the DMRS port numbers corresponding to the rectangular box with the number 3 are 4 and 6, and the DMRS port numbers corresponding to the rectangular box with the number 3 are 8 and 10, and so on.
- the first preset number of REs occupied by each CDM group may be adjacent, as shown in b in Figure 4 .
- the first preset number of REs occupied by each CDM group may not be adjacent, as shown in c in Figure 4 , which is a schematic diagram of the DMRS port group occupying OFDM symbols when the first preset number is 2.
- a rectangular box represents an RE
- a column of rectangular boxes represents a symbol.
- the rectangular boxes with numbers 0-5 respectively represent the REs occupied by a CDM group, and multiple rectangular boxes with the same number correspond to one CDM group.
- the number of DMRS ports included in each CDM group can be set according to actual needs. For details, please refer to the relevant description in part b in Figure 4.
- the number of symbols occupied by the DMRS port group is a preset value, and the preset value is greater than or equal to 2, that is, multiple OFDM symbols occupied by the DMRS port group, that is, multiple OFDM symbols.
- each DMRS port included in the DMRS port group can occupy one RE according to the frequency division multiplexing method and the time division multiplexing method.
- the DMRS port group occupies 2 OFDM symbols, that is, dual OFDM symbols.
- the 2 OFDM symbols include 24 REs.
- each DMRS port included in the DMRS port group occupies 1 RE, in this case, can support 13, 14, ..., 24 DMRS ports, as shown in a-l in Figure 5, a schematic diagram of the DMRS port group occupying OFDM symbols. As shown in a-l in Figure 5, a rectangular box represents an RE, and a column of rectangular boxes represents a symbol.
- the rectangular boxes with numbers 0-23 respectively represent REs occupied by a DMRS port, and the rectangular boxes without numbers are unoccupied REs.
- the number of the DMRS port corresponding to the rectangular box of each number can be set according to actual needs.
- the DMRS port numbers corresponding to the rectangular boxes of each number can be set sequentially or at specified intervals.
- the embodiment of the present application supports up to 24 DMRS ports, which will not increase the overhead of DMRS in Rel-15/16/17, and keep the front DMRS only occupying 2 OFDM symbols, while increasing the number of DMRS ports supported in the case of dual OFDM symbols.
- the number of symbols occupied by the DMRS port group is a preset value, and the preset value is greater than or equal to 2, that is, multiple OFDM symbols occupied by the DMRS port group, that is, multiple OFDM symbols.
- each CDM group includes a preset number of DMRS ports, and the DMRS port group includes every DMRS port except the CDM group.
- Each DMRS port occupies 1 RE according to frequency division multiplexing and time division multiplexing; each CDM group included in the DMRS port group occupies a preset value according to frequency division multiplexing and time domain CDM with a preset length. Resource element, each CDM group includes a default number of DMRS ports.
- the DMRS port group occupies 2 OFDM symbols, that is, dual OFDM symbols.
- the 2 OFDM symbols include 24 REs
- each CDM group includes 2 DMRS ports.
- each DMRS port except the CDM group that is, each independent DMRS port occupies 1 RE, as shown in a in Figure 6, DMRS ports 1, 2,... , 11, etc.; according to the frequency division multiplexing method and the time domain CDM method with length 2, each CDM group occupies 2 REs, as shown in b in Figure 6, CDM group 0 and CDM group 1, etc.
- a-l in Figure 6 a schematic diagram of the DMRS port group occupying OFDM symbols.
- a rectangular box represents an RE
- a column of rectangular boxes represents a symbol.
- the rectangular boxes with numbers 0-11 respectively represent the REs occupied by a DMRS port or CDM group.
- the rectangular boxes without numbers are unoccupied REs.
- Multiple rectangular boxes with the same number correspond to one CDM. Group.
- the number of the DMRS port corresponding to each numerical rectangular box can be set according to actual needs, and the number of the DMRS port in the CDM group corresponding to each numerical rectangular box can be set according to actual needs.
- the DMRS port numbers corresponding to the rectangular boxes of each number can be set sequentially or at specified intervals.
- the number of DMRS ports in the CDM group corresponding to the rectangular box of each number can be set sequentially or at specified intervals.
- the number of symbols occupied by the DMRS port group is a preset value, and the preset value is greater than or equal to 2, that is, multiple OFDM symbols occupied by the DMRS port group, that is, multiple OFDM symbols.
- each CDM group includes a second preset number of DMRS ports, and each DMRS port included in the DMRS port group
- Each included CDM group occupies a second preset number of REs according to the frequency domain CDM method of the second preset length and the time domain CDM method of the preset length, and the value of the second preset number is greater than or equal to A value of the second preset length, and a value of the second preset length that is less than or equal to a multiple of the preset value.
- the DMRS port group occupies 2 OFDM symbols, that is, dual OFDM symbols.
- the 2 OFDM symbols include 24 REs
- each CDM group includes 2 DMRS ports.
- each CDM group occupies 2-4 REs.
- 13, 14, ..., 24 DMRS ports can be supported, as shown in a-l in Figure 7, a schematic diagram of the DMRS port group occupying OFDM symbols.
- a rectangular box represents an RE
- a column of rectangular boxes represents a symbol.
- the rectangular boxes with numbers 0-5 respectively represent the REs occupied by a CDM group.
- the rectangular boxes without numbers are unoccupied REs.
- Multiple rectangular boxes with the same number correspond to one CDM group.
- the number of the DMRS port in the CDM group corresponding to the rectangular box of each number can be set according to actual needs. For example, the number of DMRS ports in the CDM group corresponding to the rectangular box of each number can be set sequentially or at specified intervals.
- the embodiment of the present application supports up to 24 DMRS ports, which will not increase the overhead of DMRS in Rel-15/16/17, and keep the front DMRS only occupying 2 OFDM symbols, while increasing the number of DMRS ports supported in the case of dual OFDM symbols.
- multiple REs occupied by each CDM group on each symbol may be adjacent, as shown in a-l in Figure 7 .
- the multiple REs occupied by each CDM group on each symbol may not be adjacent, as shown in a-l in Figure 8, a schematic diagram of a DMRS port group occupying OFDM symbols.
- a rectangular box represents an RE
- a column of rectangular boxes represents a symbol.
- the rectangular boxes with numbers 0-5 respectively represent the REs occupied by a CDM group, and multiple rectangular boxes with the same number correspond to one CDM group.
- the number of DMRS ports included in each CDM group can be set according to actual needs. For details, please refer to the relevant description of part a-l in Figure 7.
- the occupied resource element is offset from the starting position of the target symbol by a preset offset, and the target symbol is one that is not present in the DMRS port group.
- the symbol of the resource element occupied by the DMRS port is included.
- the preset offset represents the number of REs offset in the frequency domain. The size of the preset offset can be set according to actual requirements and is not limited.
- the schematic diagram of the frequency domain offset corresponding to the case of supporting 13 DMRS ports shown in a in Figure 5 is shown in a in Figure 9. Based on a in Figure 9, it can be seen that there are unused symbols on the second symbol occupied by the DMRS port group. Among the occupied REs, the second symbol is the target symbol. The RE occupied by DMRS port 12 on the second symbol is offset by 5 REs relative to the starting position of the second symbol.
- the schematic diagram of the frequency domain offset corresponding to the case of supporting 13 DMRS ports shown in a in Figure 6 is shown in b in Figure 9.
- the second symbol is the target symbol.
- the RE occupied by CDM group 5 on the second symbol is offset by 5 REs relative to the starting position of the second symbol.
- the schematic diagram of the frequency domain offset corresponding to the case of supporting 13 DMRS ports shown in a in Figure 7 is shown in c in Figure 9.
- the second symbol is the target symbol.
- the RE occupied by CDM group 2 on the second symbol is offset by 5 REs relative to the starting position of the second symbol.
- the frequency domain offset corresponding to the case of supporting 14, 15, ..., 24 DMRS ports is similar to the frequency domain offset corresponding to the case of supporting 13 DMRS ports, and will not be described again this time.
- each DMRS port of each PRB Physical Resource Block, physical resource block
- the technical solution provided by the embodiments of the present application can be supported in environments with low frequency selectivity, such as small open spaces such as outdoor small concerts, tennis courts, or outdoor cafes. Outdoor environment.
- the number of symbols occupied by the DMRS port group is a preset value, and the preset value is greater than or equal to 2, that is, multiple OFDM symbols occupied by the DMRS port group, that is, multiple OFDM symbols.
- each DMRS port included in the DMRS port group occupies one RE according to frequency division multiplexing.
- the DMRS port here may be a port in a CDM group, or it may not be a port in a CDM group.
- the DMRS port group uses frequency division multiplexing to occupy REs in the frequency domain, and in the time domain, it can use time division multiplexing to occupy REs, as shown in Figure 5; in the time domain , the time domain CDM of a specified length can also be used to occupy the RE, as shown in Figure 6.
- the number of symbols occupied by the DMRS port group is a preset value, and the preset value is greater than or equal to 2, that is, multiple OFDM symbols occupied by the DMRS port group, that is, multiple OFDM symbols.
- each DMRS port included in the DMRS port group occupies one RE in a time division multiplexing manner.
- the DMRS port here may be a port in a CDM group, or it may not be a port in a CDM group.
- the DMRS port group uses time division multiplexing to occupy REs in the time domain, and in the frequency domain, it can use frequency division multiplexing to occupy REs, as shown in Figure 5; in the frequency domain , the frequency domain CDM of a specified length can also be used to occupy the RE, as shown in Figure 10.
- the rectangular boxes with numbers 0-8 respectively represent the REs occupied by a CDM group.
- the rectangular boxes without numbers are unoccupied REs. Multiple rectangular boxes with the same number correspond to one CDM group.
- a part of the symbols occupied by the DMRS port group is located at the leading symbol position, and another part of the symbols occupied by the DMRS port group is located at the incremental symbol position.
- the DMRS port located at the prefix symbol position may be called a prefix DMRS port
- the DMRS port located at the incremental symbol position may be called an incremental DMRS port. Both the prefix DMRS port and the incremental DMRS port are Together, more orthogonal DMRS ports can be supported.
- the DMRS ports in the DMRS port group may belong to one or more CDM combinations, or they may not belong to a CDM combination, and there is no limit to this.
- the first three symbols are preamble symbols and the DMRS port group occupies two OFDM symbols.
- the first OFDM symbol is the third symbol of a timeslot. That is, the first OFDM symbol is located at the preamble symbol position.
- the two OFDM symbols are the eighth symbol of a time slot, that is, the second OFDM symbol is located at the incremental symbol position after the preceding symbol, as shown in Figure 11.
- the first OFDM symbol is implemented using preamble symbols
- the DMRS port on the second OFDM symbol is implemented using incremental symbols.
- the number of incremental symbols and the position of the incremental symbols in a time slot are flexible.
- the rectangular boxes with numbers 0-11 respectively represent the REs occupied by a CDM group.
- the rectangular boxes without numbers are unoccupied REs. Multiple rectangular boxes with the same number correspond to one CDM group.
- the design of increasing the number of DMRS ports is carried out without increasing the existing DMRS overhead, that is, the design of increasing the number of DMRS ports is carried out by using only 1 to 2 OFDM symbols.
- the scope of application of the technical solutions provided by the embodiments of this application is expanded.
- the DMRS ports in the DMRS port group may belong to one or more CDM combinations, or may not belong to a CDM combination, which is not limited.
- the DMRS ports in the DMRS port group may belong to one or more CDM combinations, or may not belong to a CDM combination, which is not limited.
- the number of prefix symbols can be set according to actual needs.
- the DMRS port group occupancy symbols are configured for one or more time slots; when the DMRS port group occupancy symbols are configured for multiple time slots, the multiple time slots may be consecutive. Gaps can also be discontinuous. The number of symbols occupied by the DMRS port group in each time slot and its position in the time slot are flexible. The DMRS port group in each time slot can be located at the prefix symbol position or the incremental symbol position.
- the DMRS port group occupies one OFDM symbol in one time slot. Among them, this OFDM symbol is configured for two time slots. These two time slots can be continuous time slots, as shown in Figure 14. These two time slots can also be discontinuous time slots, as shown in Figure 15. Show. In Figure 14 and Figure 15, the rectangular boxes with numbers 0-11 respectively represent REs occupied by a DMRS port, and the rectangular boxes without numbers are unoccupied REs.
- the above step S31 may be: based on the symbols occupied by the DMRS port group configured for the current time slot, determine that the DMRS port group in the current time slot needs to be sent to the second communicating party
- the reference signal corresponds to the DMRS port.
- the symbols occupied by the DMRS port group configured for the current time slot can also be configured for other time slots. That is, the symbols occupied by the DMRS port group can be configured for multiple time slots.
- the design of increasing the number of DMRS ports is carried out without increasing the existing DMRS overhead, that is, the design of increasing the number of DMRS ports is carried out by using only 1 to 2 OFDM symbols.
- the scope of application of the technical solutions provided by the embodiments of the present application is expanded. For example, it is suitable for scenarios that are not sensitive to demodulation delay and have a large number of reference signals that need to be transmitted.
- the first communicating party when the first communicating party is a base station and the second communicating party is a UE, the first communicating party can also send a preset number of bits of DCI to the second communicating party, where the DCI indicates the reference signal in the DMRS port group.
- the corresponding DMRS port; the maximum value corresponding to the preset number of bits is greater than or equal to the maximum number of DMRS ports included in the DMRS port group.
- the first communicating party can also receive a preset number of bits of DCI sent by the second communicating party, where the DCI indicates the DMRS port corresponding to the reference signal in the DMRS port group;
- the maximum value corresponding to the preset number of bits is greater than or equal to the maximum number of DMRS ports included in the DMRS port group.
- the base station assigns the value of the port indication information field to the UE based on the preset Rank configuration, carries the value of the port indication information field in the DCI, and sends it to the UE. Subsequently, the base station sends the reference signal to the UE based on the DMRS port set corresponding to the value of the port indication information field in the DCI, and receives the reference signal sent by the UE. The UE sends a reference signal to the base station based on the DMRS port set corresponding to the value of the port indication information field in the DCI, and receives the reference signal sent by the base station.
- Port indication information field value Number of DMRS CDM groups without data DMRS port set Number of prefixed symbols 0 6 0 1 1 6 1 1 2 6 2 1 3 6 3 1 4 6 4 1 5 6 5 1 6 6 6 1 7 6 7 1 8 6 8 1 9 6 9 1 10 6 10 1 11 6 11 1 12 6 12 2 13 6 13 2 14 6 14 2 15 6 15 2 16 6 16 2 17 6 17 2 18 6 18 2 19 6 19 2
- the value of the port indication information field can be expressed as Value
- the DMRS port can be expressed as DMRS CDM group(s)
- the number of DMRS CDM groups without data transmission can be expressed as Number of DMRS CDM group(s)without data, preceded by The number of symbols can be expressed as Number of front-load symbols.
- the base station can randomly select a port indication information field value from the port indication information field values 0-23, carry the port indication information field value in the DCI, and send it to the UE. Subsequently, the base station sends a reference signal to the UE based on a DMRS port corresponding to the value of the port indication information field in the DCI, and receives the reference signal sent by the UE. The UE sends a reference signal to the base station based on a DMRS port corresponding to the value of the port indication information field in the DCI, and receives the reference signal sent by the base station.
- Port indication information field value Number of DMRS CDM groups without data DMRS port set Number of prefixed symbols 0 6 0-11 1 1 6 0-5;12-17 2 2 reserve reserve reserve 3 reserve reserve reserve 4 reserve reserve reserve 5-31 reserve reserve reserve reserve
- the base station can randomly select a port indication information field value from the port indication information field values 0-1, carry the port indication information field value in the DCI, and send it to the UE. Subsequently, the base station sends the reference signal to the UE based on the 12 DMRS ports corresponding to the value of the port indication information field in the DCI, and receives the reference signal sent by the UE. Based on the 12 DMRS ports corresponding to the value of the port indication information field in the DCI, the UE sends reference signals to the base station and receives reference signals sent by the base station.
- Port indication information field value Number of DMRS CDM groups without data DMRS port set Number of prefixed symbols 0 6 0-23 2 1 reserve reserve reserve 2 reserve reserve reserve 3 reserve reserve reserve 4 reserve reserve reserve 5-31 reserve reserve reserve reserve
- the base station can select the value 0 of the port indication information field, carry the value 0 of the port indication information field in the DCI, and send it to the UE. Subsequently, the base station sends the reference signal to the UE based on the 24 DMRS ports corresponding to the value of the port indication information field in the DCI, and receives the reference signal sent by the UE. Based on the 24 DMRS ports corresponding to the value of the port indication information field in the DCI, the UE sends reference signals to the base station and receives reference signals sent by the base station.
- the DMRS port corresponding to the value of each port indication information field can be set according to actual needs.
- the value 1 of the port indication information field in Table 2 can correspond to DMRS port sets 0-5 and 12-17. It can also correspond to DMRS port sets 12-23, etc., and is not limited to this.
- the corresponding signaling process may need to be modified accordingly, such as the corresponding PBCH (Physical Broadcast Channel), RRC (Radio Resource Control, Radio Resource Control),
- PBCH Physical Broadcast Channel
- RRC Radio Resource Control, Radio Resource Control
- the design related to DMRS indication in MAC CE (Media Access Control Customer Edge, user edge device for media access control) or DCI must be modified or updated to support the technical solution provided by the embodiment of this application.
- Specific signaling updates/modifications that may be involved include MIB (Master Information Block, main information block), SIB (System Information Block, system information block) 1, MSG (Message, signaling) 2, MSG4, RRC setup (Setup) , full mode command (security Mode Command), RRC reconfiguration (Reconfiguration) related to the number of DMRS ports, position information of DMRS port occupied symbols, length of DMRS occupied symbols, mapping type, whether to configure incremental DMRS, etc. parameter.
- the technical solution provided by the embodiment of this application can increase the maximum number of DMRS ports supported in the current standard from 12 to 24 without increasing the existing DMRS overhead, meeting the requirements of downlink and uplink DMRS complexities.
- With the continuous increase in usage capacity there is a need to increase the number of orthogonal ports of DMRS.
- new application scenarios such as holographic communication, real-time UHD (Ultra High Definition, ultra-high definition) video, security monitoring, machine vision, and extended reality (XR-Extended Reality).
- UHD Ultra High Definition, ultra-high definition
- XR-Extended Reality extended reality
- the downlink and uplink DMRS multiplexing capacity The demand continues to increase, and the number of orthogonal ports of DMRS needs to be increased.
- embodiments of the present application also provide a signal receiving method, which is applied to the second communicating party.
- the method includes:
- Step S161 Determine the DMRS port corresponding to the reference signal that the first communicating party needs to send in the DMRS port group.
- Each DMRS port in the DMRS port group occupies one RE on average.
- Step S162 Receive the reference signal sent using the DMRS port.
- the first communicating party is the base station and the second communicating party is the UE, or the first communicating party is the UE and the second communicating party is the base station.
- the first communicating party when receiving a reference signal, uses the corresponding DMRS port in the DMRS port group to send the reference signal to the second communicating party.
- Each DMRS port in the DMRS port group averages Occupying one RE, in this way, the CP-OFDM waveform can support the maximum number of DMRS ports reaching the number of REs included in the OFDM symbols occupied by the DMRS port group.
- the number of symbols occupied by the DMRS port group is 1;
- Each DMRS port included in the DMRS port group occupies 1 resource element in a frequency division multiplexing manner
- Each CDM group included in the DMRS port group occupies a first preset number of resource elements in a frequency domain CDM manner of a first preset length.
- Each CDM group includes a first preset number of DMRS ports. The first preset The value of the number is the same as the value of the first preset length, and the value of the first preset number is greater than or equal to 2.
- the first preset number of resource elements occupied by each CDM group are adjacent; or
- the first preset number of resource elements occupied by each CDM group are not adjacent.
- the number of symbols occupied by the DMRS port group is a preset value; the preset value is greater than or equal to 2;
- Each DMRS port included in the DMRS port group occupies 1 resource element in a frequency division multiplexing manner
- Each DMRS port included in the DMRS port group occupies 1 resource element in a time division multiplexing manner
- Each DMRS port included in the DMRS port group occupies one resource element according to frequency division multiplexing and time division multiplexing;
- Each DMRS port included in the DMRS port group except the CDM group occupies one resource element according to the frequency division multiplexing method and time division multiplexing method; each CDM group included in the DMRS port group uses the frequency division multiplexing method and the length is The default time-domain CDM method occupies a default value of resource elements, and each CDM group includes a default number of DMRS ports; or
- Each CDM group included in the DMRS port group occupies a second preset number of resource elements according to the frequency domain CDM method with a second preset length and the time domain CDM method with a preset length.
- Each CDM group includes a second preset length.
- a preset number of DMRS ports, the second preset number is greater than or equal to the second preset length, and is less than or equal to the second preset length that is a multiple of the preset value.
- the occupied resource element is offset by a preset offset relative to the starting position of the target symbol, and the target symbol exists and is not included in the DMRS port group. Symbol of the resource element occupied by the DMRS port.
- multiple resource elements occupied by each CDM group on each symbol are adjacent;
- the multiple resource elements occupied by each CDM group on each symbol are not adjacent.
- a part of the symbols occupied by the DMRS port group is located at the leading symbol position, and another part of the symbols occupied by the DMRS port group is located at the incremental symbol position;
- All symbols occupied by the DMRS port group are in leading symbol positions;
- All symbols occupied by the DMRS port group are located in incremental symbol positions.
- the symbols occupied by the DMRS port group are configured for one or more time slots; the number of multiple time slots is less than or equal to a preset value;
- the multiple time slots are continuous or discontinuous.
- the above signal receiving method may also include step S173.
- Steps S171 to S172 are the same as the above steps S161 to S162.
- Step S173 Use the reference signals carried by the DMRS port groups on some or all of the multiple time slots to perform channel estimation.
- the device when the symbols occupied by the DMRS port group are configured for multiple time slots, the device can use the reference signals carried by the DMRS port group on some or all time slots to perform channel estimation, which improves the flexibility of channel estimation.
- step S173 may specifically be:
- the reference signal carried by the DMRS port group in the time slot before the time slot is used for channel estimation; or, the DMRS port in the time slot after the time slot is used for channel estimation.
- the reference signal carried by the DMRS port group is used for channel estimation; or the reference signal carried by the DMRS port group in the time slot before the time slot and the time slot after the time slot is used for channel estimation.
- the second time slot does not include the DMRS port group.
- the reference signal carried by the DMRS port group in the first time slot can be used to complete the comparison.
- the reference signal carried by the DMRS port group in the third time slot can also be used to complete the channel estimation of the second time slot.
- the first time slot and the third time slot can also be used.
- the reference signals carried by the DMRS port groups in these two time slots complete the channel estimation of the second time slot.
- step S173 may specifically be:
- the reference signal carried by the DMRS port group in the time slot is used for channel estimation; or, the DMRS port group in the time slot and the time slot before the time slot are used for channel estimation.
- the reference signal carried by the DMRS port group in the time slot after the time slot is used for channel estimation.
- the first time slot includes a DMRS port group.
- the reference signal carried by the DMRS port group of the first time slot can be used to complete the analysis of the first time slot.
- the channel estimation of one time slot can also be accomplished by using the reference signal carried by the DMRS port group in the first time slot and the subsequent third time slot to complete the channel estimation of the first time slot.
- the DMRS port group in the 1st time slot and the previous 0th time slot can be used The reference signal carried completes the channel estimation of the first time slot.
- the reference signal carried by the DMRS port group in the previous 0th time slot, the 1st time slot and the subsequent 3rd time slot can also be used to complete the channel estimation for the first time slot.
- time slot before and after only one time slot before and after is used as an example.
- the number of time slots before and after is not limited.
- the time slots before and after assisting in channel estimation are not limited.
- the number is limited.
- the reference signals carried by the DMRS port groups in the previous two time slots can be used for channel estimation.
- the above signal receiving method may also include:
- the second communicating party receives a DCI of a preset number of bits sent by the first communicating party.
- the DCI indicates the DMRS port corresponding to the reference signal in the DMRS port group; the preset number of bits The corresponding maximum value is greater than or equal to the maximum number of DMRS ports included in the DMRS port group;
- the second communicating party When the second communicating party is a base station and the first communicating party is a UE, the second communicating party sends a preset number of bits of DCI to the first communicating party.
- the DCI indicates the DMRS port corresponding to the reference signal in the DMRS port group; the preset number of bits corresponds to The maximum value is greater than or equal to the maximum number of DMRS ports included in the DMRS port group.
- embodiments of the present application also provide a signal sending device, which is applied to the first communicating party.
- the device includes:
- the determining unit 181 is used to determine the DMRS port corresponding to the reference signal that needs to be sent to the second communicating party in the DMRS port group.
- Each DMRS port in the DMRS port group occupies one resource element on average;
- the sending unit 182 is used to send the reference signal using the DMRS port;
- the first communicating party is the base station and the second communicating party is the UE, or the first communicating party is the UE and the second communicating party is the base station.
- the first communicating party when sending a reference signal, uses the corresponding DMRS port in the DMRS port group to send the reference signal to the second communicating party.
- Each DMRS port in the DMRS port group averages Occupying one RE, in this way, the CP-OFDM waveform can support the maximum number of DMRS ports reaching the number of REs included in the OFDM symbols occupied by the DMRS port group.
- the number of symbols occupied by the DMRS port group is 1;
- Each DMRS port included in the DMRS port group occupies 1 resource element in a frequency division multiplexing manner
- Each CDM group included in the DMRS port group occupies a first preset number of resource elements in a frequency domain CDM manner of a first preset length.
- Each CDM group includes a first preset number of DMRS ports. The first preset The value of the number is the same as the value of the first preset length, and the value of the first preset number is greater than or equal to 2.
- the first preset number of resource elements occupied by each CDM group are adjacent; or
- the first preset number of resource elements occupied by each CDM group are not adjacent.
- the number of symbols occupied by the DMRS port group is a preset value; the preset value is greater than or equal to 2;
- Each DMRS port included in the DMRS port group occupies 1 resource element in a frequency division multiplexing manner
- Each DMRS port included in the DMRS port group occupies 1 resource element in a time division multiplexing manner
- Each DMRS port included in the DMRS port group occupies one resource element according to frequency division multiplexing and time division multiplexing;
- Each DMRS port included in the DMRS port group except the CDM group occupies one resource element according to the frequency division multiplexing method and time division multiplexing method; each CDM group included in the DMRS port group uses the frequency division multiplexing method and the length is The default time-domain CDM method occupies a default value of resource elements, and each CDM group includes a default number of DMRS ports; or
- Each CDM group included in the DMRS port group occupies a second preset number of resource elements according to the frequency domain CDM method with a second preset length and the time domain CDM method with a preset length.
- Each CDM group includes a second preset length.
- a preset number of DMRS ports, the second preset number is greater than or equal to the second preset length, and is less than or equal to the second preset length that is a multiple of the preset value.
- the occupied resource element is offset by a preset offset relative to the starting position of the target symbol, and the target symbol is one that is not present in the DMRS port group. Includes the symbol of the resource element occupied by the DMRS port.
- multiple resource elements occupied by each CDM group on each symbol are adjacent;
- the multiple resource elements occupied by each CDM group on each symbol are not adjacent.
- a part of the symbols occupied by the DMRS port group is located at the leading symbol position, and another part of the symbols occupied by the DMRS port group is located at the incremental symbol position;
- All symbols occupied by the DMRS port group are in leading symbol positions;
- All symbols occupied by the DMRS port group are located in incremental symbol positions.
- the symbols occupied by the DMRS port group are configured for one or more time slots
- the multiple time slots are continuous or discontinuous
- the determining unit is specifically configured to determine the DMRS port corresponding to the reference signal that needs to be sent to the second communicating party in the DMRS port group in the current time slot based on the symbols occupied by the DMRS port group configured for the current time slot.
- the above-mentioned signal sending device may further include a processing unit for:
- a DCI of a preset number of bits is sent to the second communicating party.
- the DCI indicates the DMRS port corresponding to the reference signal in the DMRS port group; the maximum value corresponding to the preset number of bits Greater than or equal to the maximum number of DMRS ports included in the DMRS port group;
- a DCI of a preset number of bits sent by the second communicating party is received.
- the DCI indicates the DMRS port corresponding to the reference signal in the DMRS port group; the maximum number of bits corresponding to the preset number of bits is The value is greater than or equal to the maximum number of DMRS ports included in the DMRS port group.
- embodiments of the present application also provide a signal receiving device, which is applied to the second communicating party.
- the device includes:
- the determining unit 191 is used to determine the DMRS port corresponding to the reference signal that the first communicating party needs to send in the DMRS port group.
- Each DMRS port in the DMRS port group occupies one resource element on average;
- the receiving unit 192 is used to receive the reference signal sent using the DMRS port;
- the first communicating party is the base station
- the second communicating party is the user equipment UE, or the first communicating party is the UE, and the second communicating party is the base station.
- the first communicating party when receiving a reference signal, uses the corresponding DMRS port in the DMRS port group to send the reference signal to the second communicating party.
- Each DMRS port in the DMRS port group averages Occupying one RE, in this way, the CP-OFDM waveform can support the maximum number of DMRS ports reaching the number of REs included in the OFDM symbols occupied by the DMRS port group.
- the number of symbols occupied by the DMRS port group is 1;
- Each DMRS port included in the DMRS port group occupies 1 resource element in a frequency division multiplexing manner
- Each CDM group included in the DMRS port group occupies a first preset number of resource elements in a frequency domain CDM manner of a first preset length.
- Each CDM group includes a first preset number of DMRS ports. The first preset The value of the number is the same as the value of the first preset length, and the value of the first preset number is greater than or equal to 2.
- the first preset number of resource elements occupied by each CDM group are adjacent; or
- the first preset number of resource elements occupied by each CDM group are not adjacent.
- the number of symbols occupied by the DMRS port group is a preset value; the preset value is greater than or equal to 2;
- Each DMRS port included in the DMRS port group occupies 1 resource element in a frequency division multiplexing manner
- Each DMRS port included in the DMRS port group occupies 1 resource element in a time division multiplexing manner
- Each DMRS port included in the DMRS port group occupies one resource element according to frequency division multiplexing and time division multiplexing;
- Each DMRS port included in the DMRS port group except the CDM group occupies 1 resource element according to frequency division multiplexing and time division multiplexing; each CDM group included in the DMRS port group uses frequency division multiplexing, and the length is predetermined
- the set time-domain CDM mode occupies a set number of resource elements, and each CDM group includes a set number of DMRS ports; or
- Each CDM group included in the DMRS port group occupies a second preset number of resource elements according to the frequency domain CDM method with a second preset length and the time domain CDM method with a preset length.
- Each CDM group includes a second preset length.
- a preset number of DMRS ports, the second preset number is greater than or equal to the second preset length, and is less than or equal to the second preset length that is a multiple of the preset value.
- the occupied resource element is offset by a preset offset relative to the starting position of the target symbol, and the target symbol exists and is not included in the DMRS port group. Symbol of the resource element occupied by the DMRS port.
- multiple resource elements occupied by each CDM group on each symbol are adjacent;
- the multiple resource elements occupied by each CDM group on each symbol are not adjacent.
- a part of the symbols occupied by the DMRS port group is located at the leading symbol position, and another part of the symbols occupied by the DMRS port group is located at the incremental symbol position;
- All symbols occupied by the DMRS port group are in leading symbol positions;
- All symbols occupied by the DMRS port group are located in incremental symbol positions.
- the symbols occupied by the DMRS port group are configured for one or more time slots
- the multiple time slots are continuous or discontinuous
- the above-mentioned signal receiving device may also include:
- the estimation unit 193 is configured to perform channel estimation using reference signals carried by the DMRS port group on some or all of the multiple time slots when the symbols occupied by the DMRS port group are configured for multiple time slots.
- the estimation unit 193 may be used to:
- the reference signal carried by the DMRS port group in the time slot before the time slot is used.
- Channel estimation or, use the reference signal carried by the DMRS port group in the time slot after the time slot for channel estimation; or use the reference signal carried by the DMRS port group in the time slot before the time slot and the time slot after the time slot.
- one of the multiple time slots includes a DMRS port group
- the reference signal carried by the DMRS port group in the time slot after the time slot is used for channel estimation.
- the above-mentioned signal receiving device may further include a processing unit for:
- the first communicating party When the first communicating party is a base station and the second communicating party is a UE, receive a DCI of a preset number of bits sent by the first communicating party.
- the DCI indicates the DMRS port corresponding to the reference signal in the DMRS port group; the maximum value corresponding to the preset number of bits. Greater than or equal to the maximum number of DMRS ports included in the DMRS port group;
- a DCI of a preset number of bits is sent to the first communicating party.
- the DCI indicates the DMRS port corresponding to the reference signal in the DMRS port group; the maximum value corresponding to the preset number of bits Greater than or equal to the maximum number of DMRS ports included in the DMRS port group.
- the embodiment of the present application also provides an electronic device, as shown in Figure 21, including a processor 211 and a machine-readable storage medium 212.
- the machine-readable storage medium 212 stores a machine that can be executed by the processor 211. Executable instructions, the processor 211 is prompted by the machine executable instructions to implement the method steps described in any of the embodiments in FIGS. 3-17.
- the electronic device may be a base station or a UE, such as the first communicating party and the second communicating party mentioned above.
- the communication bus mentioned in the above-mentioned electronic equipment can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc.
- PCI Peripheral Component Interconnect
- EISA Extended Industry Standard Architecture
- the communication bus can be divided into address bus, data bus, control bus, etc. For ease of presentation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.
- the communication interface is used for communication between the above-mentioned electronic devices and other devices.
- the memory may include random access memory (Random Access Memory, RAM) or non-volatile memory (Non-Volatile Memory, NVM), such as at least one disk memory.
- RAM Random Access Memory
- NVM Non-Volatile Memory
- the memory may also be at least one storage device located far away from the aforementioned processor.
- the above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (Network Processor, NP), etc.; it can also be a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
- CPU central processing unit
- NP Network Processor
- DSP Digital Signal Processor
- ASIC Application Specific Integrated Circuit
- FPGA Field-Programmable Gate Array
- a computer-readable storage medium stores a computer program.
- the computer program is executed by a processor, any of the above-mentioned tasks in Figures 3-16 can be implemented. Method steps described in an embodiment.
- a computer program is also provided.
- the computer program is executed by a processor, the method steps described in any of the above embodiments in Figures 3-17 are implemented.
- the computer program product includes one or more computer instructions.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
- the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center by 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 available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), etc.
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Abstract
Description
端口指示信息域取值 | 没有数据的DMRS CDM组数 | DMRS端口集合 | 前置符号数 |
0 | 6 | 0 | 1 |
1 | 6 | 1 | 1 |
2 | 6 | 2 | 1 |
3 | 6 | 3 | 1 |
4 | 6 | 4 | 1 |
5 | 6 | 5 | 1 |
6 | 6 | 6 | 1 |
7 | 6 | 7 | 1 |
8 | 6 | 8 | 1 |
9 | 6 | 9 | 1 |
10 | 6 | 10 | 1 |
11 | 6 | 11 | 1 |
12 | 6 | 12 | 2 |
13 | 6 | 13 | 2 |
14 | 6 | 14 | 2 |
15 | 6 | 15 | 2 |
16 | 6 | 16 | 2 |
17 | 6 | 17 | 2 |
18 | 6 | 18 | 2 |
19 | 6 | 19 | 2 |
20 | 6 | 20 | 2 |
21 | 6 | 21 | 2 |
22 | 6 | 22 | 2 |
23 | 6 | 23 | 2 |
24 | 保留 | 保留 | 保留 |
25 | 保留 | 保留 | 保留 |
26 | 保留 | 保留 | 保留 |
27 | 保留 | 保留 | 保留 |
28-31 | 保留 | 保留 | 保留 |
端口指示信息域取值 | 没有数据的DMRS CDM组数 | DMRS端口集合 | 前置符号数 |
0 | 6 | 0-11 | 1 |
1 | 6 | 0-5;12-17 | 2 |
2 | 保留 | 保留 | 保留 |
3 | 保留 | 保留 | 保留 |
4 | 保留 | 保留 | 保留 |
5-31 | 保留 | 保留 | 保留 |
端口指示信息域取值 | 没有数据的DMRS CDM组数 | DMRS端口集合 | 前置符号数 |
0 | 6 | 0-23 | 2 |
1 | 保留 | 保留 | 保留 |
2 | 保留 | 保留 | 保留 |
3 | 保留 | 保留 | 保留 |
4 | 保留 | 保留 | 保留 |
5-31 | 保留 | 保留 | 保留 |
Claims (41)
- 一种信号发送方法,其特征在于,应用于第一通信方,所述方法包括:确定解调参考信号DMRS端口组中需要向第二通信方发送的参考信号对应的DMRS端口,所述DMRS端口组中每个DMRS端口平均占用一个资源元素;使用所述DMRS端口,发送所述参考信号;其中,所述第一通信方为基站,所述第二通信方为用户设备UE,或者,所述第一通信方为UE,所述第二通信方为基站。
- 根据权利要求1所述的方法,其特征在于,所述DMRS端口组占用的符号数为1;所述DMRS端口组包括的每个DMRS端口按照频分复用方式占用1个资源元素;或者所述DMRS端口组包括的每个码分复用CDM组按照第一预设长度的频域CDM方式占用第一预设个数的资源元素,每个CDM组包括所述第一预设个数的DMRS端口,所述第一预设个数的值与所述第一预设长度的值相同,所述第一预设个数的值大于等于2。
- 根据权利要求2所述的方法,其特征在于,每个CDM组占用的所述第一预设个数的资源元素相邻;或者每个CDM组占用的所述第一预设个数的资源元素不相邻。
- 根据权利要求1所述的方法,其特征在于,所述DMRS端口组占用的符号数为预设值;所述预设值大于或等于2;所述DMRS端口组包括的每个DMRS端口按照频分复用方式占用1个资源元素;或者所述DMRS端口组包括的每个DMRS端口按照时分复用方式占用1个资源元素;或者所述DMRS端口组包括的每个DMRS端口按照频分复用方式以及时分复用方式占用1个资源元素;或者所述DMRS端口组包括的除码分复用CDM组外的每个DMRS端口按照频分复用方式以及时分复用方式占用1个资源元素;所述DMRS端口组包括的每个CDM组按照频分复用方式、以及长度为所述预设值的时域CDM方式占用所述预设值的资源元素,每个CDM组包括所述预设值个的DMRS端口;或者所述DMRS端口组包括的每个CDM组按照第二预设长度的频域CDM方式、以及长度为所述预设值的时域CDM方式占用第二预设个数的资源元素,每个CDM组包括所述第二预设个数的DMRS端口,所述第二预设个数的值大于或等于所述第二预设长度的值,且小于或等于所述预设值的倍数的所述第二预设长度的值;或者所述DMRS端口组包括的每个CDM组按照第三预设长度的频域CDM方式、以及时分复用方式占用第三预设个数的资源元素,每个CDM组包括所述第三预设个数的DMRS端口,所述第三预设个数的值大于或等于所述第三预设长度的值。
- 根据权利要求4所述的方法,其特征在于,在所述DMRS端口组占用的所有符号中的目标符号上,被占用的资源元素相对于所述目标符号的起始位置偏移预设偏移量,所述目标符号为存在未被所述DMRS端口组包括的DMRS端口占用的资源元素的符号。
- 根据权利要求4所述的方法,其特征在于,每个CDM组在每个符号上占用的多个资源元素相邻;或者每个CDM组在每个符号上占用的多个资源元素不相邻。
- 根据权利要求2-6任一项所述的方法,其特征在于,所述DMRS端口组占用的一部分符号位于前置符号位置,所述DMRS端口组占用的另一部分符号位于增量符号位置;或者所述DMRS端口组占用的所有符号位于前置符号位置;或者所述DMRS端口组占用的所有符号位于增量符号位置。
- 根据权利要求2-6任一项所述的方法,其特征在于,所述DMRS端口组占用的符号被配置给一个或多个时隙;当所述DMRS端口组占用的符号被配置给多个时隙时,所述多个时隙为连续的或不连续的;所述确定解调参考信号DMRS端口组中需要向第二通信方发送的参考信号对应的DMRS端口的步骤,包括:基于配置给当前时隙的DMRS端口组所占用的符号,确定当前时隙中DMRS端口组中需要向第二通信方发送的参考信号对应的DMRS端口。
- 根据权利要求1-6任一项所述的方法,其特征在于,所述方法还包括:当所述第一通信方为基站,所述第二通信方为UE时,向所述第二通信方发送预设数量比特的下行控制信息DCI,所述DCI指示DMRS端口组中所述参考信号对应的DMRS端口;所述预设数量比特对应的最大值大于或等于所述DMRS端口组包括的最大DMRS端口数;当所述第二通信方为基站,所述第一通信方为UE时,接收所述第二通信方发送的预设数量比特的下行控制信息DCI,所述DCI指示DMRS端口组中所述参考信号对应的DMRS端口;所述预设数量比特对应的最大值大于或等于所述DMRS端口组包括的最大DMRS端口数。
- 一种信号接收方法,其特征在于,应用于第二通信方,所述方法包括:确定解调参考信号DMRS端口组中第一通信方需要发送的参考信号对应的DMRS端口,所述DMRS端口组中每个DMRS端口平均占用一个资源元素;接收使用所述DMRS端口发送的所述参考信号;其中,所述第一通信方为基站,所述第二通信方为用户设备UE,或者,所述第一通信方为UE,所述第二通信方为基站。
- 根据权利要求10所述的方法,其特征在于,所述DMRS端口组占用的符号数为1;所述DMRS端口组包括的每个DMRS端口按照频分复用方式占用1个资源元素;或者所述DMRS端口组包括的每个码分复用CDM组按照第一预设长度的频域CDM方式占用第一预设个数的资源元素,每个CDM组包括所述第一预设个数的DMRS端口,所述第一预设个数的值与所述第一预设长度的值相同,所述第一预设个数的值大于等于2。
- 根据权利要求11所述的方法,其特征在于,每个CDM组占用的所述第一预设个数的资源元素相邻;或者每个CDM组占用的所述第一预设个数的资源元素不相邻。
- 根据权利要求10所述的方法,其特征在于,所述DMRS端口组占用的符号数为预设值;所述预设值大于或等于2;所述DMRS端口组包括的每个DMRS端口按照频分复用方式占用1个资源元素;或者所述DMRS端口组包括的每个DMRS端口按照时分复用方式占用1个资源元素;或者所述DMRS端口组包括的每个DMRS端口按照频分复用方式以及时分复用方式占用1个资源元素;或者所述DMRS端口组包括的除码分复用CDM组外的每个DMRS端口按照频分复用方式以及时分复用方式占用1个资源元素;所述DMRS端口组包括的每个CDM组按照频分复用方式、以及长度为所述预设值的时域CDM方式占用所述预设值的资源元素,每个CDM组包括所述预设值个的DMRS端口;或者所述DMRS端口组包括的每个CDM组按照第二预设长度的频域CDM方式、以及长度为所述预设值的时域CDM方式占用第二预设个数的资源元素,每个CDM组包括所述第二预设个数的DMRS端口,所述第二预设个数的值大于或等于所述第二预设长度的值,且小于或等于所述预设值的倍数的所述第二预设长度的值;或者所述DMRS端口组包括的每个CDM组按照第三预设长度的频域CDM方式、以及时分复用方式占用第三预设个数的资源元素,每个CDM组包括所述第三预设个数的DMRS端口,所述第三预设个数的值大于或等于所述第三预设长度的值。
- 根据权利要求13所述的方法,其特征在于,在所述DMRS端口组占用所有符号中的目标符号上,被占用的资源元素相对于所述目标符号的起始位置偏移预设偏移量,所述目标符号为存在未被所述DMRS端口组包括的DMRS端口占用的资源元素的符号。
- 根据权利要求13所述的方法,其特征在于,每个CDM组在每个符号上占用的多个资源元素相邻;或者每个CDM组在每个符号上占用的多个资源元素不相邻。
- 根据权利要求11-15任一项所述的方法,其特征在于,所述DMRS端口组占用的一部分符号位于前置符号位置,所述DMRS端口组占用的另一部分符号位于增量符号位置;或者所述DMRS端口组占用的所有符号位于前置符号位置;或者所述DMRS端口组占用的所有符号位于增量符号位置。
- 根据权利要求11-15任一项所述的方法,其特征在于,所述DMRS端口组占用的符号被配置给一个或多个时隙;当所述DMRS端口组占用的符号被配置给多个时隙时,所述多个时隙为连续的或不连续的;所述方法还包括:当所述DMRS端口组占用的符号被配置给多个时隙时,利用所述多个时隙中部分或全部时隙上所述DMRS端口组携带的所述参考信号进行信道估计。
- 根据权利要求17所述的方法,其特征在于,所述利用所述多个时隙中部分或全部时隙上所述DMRS端口组携带的所述参考信号进行信道估计的步骤,包括:当所述多个时隙中一个时隙上不包括所述DMRS端口组时,利用该时隙之前的时隙中所述DMRS端口组携带的所述参考信号进行信道估计;或者,利用该时隙之后的时隙中所述DMRS端口组携带的所述参考信号进行信道估计;或者,利用该时隙之前的时隙和该时隙之后的时隙中所述DMRS端口组携带的所述参考信号进行信道估计;当所述多个时隙中一个时隙上包括所述DMRS端口组时,利用该时隙中所述DMRS端口组携带的所述参考信号进行信道估计;或者,利用该时隙和该时隙之前的时隙中所述DMRS端口组携带的所述 参考信号进行信道估计;或者,利用该时隙和该时隙之前的时隙中所述DMRS端口组携带的所述参考信号进行信道估计;或者,利用该时隙、该时隙之前的时隙和该时隙之后的时隙中所述DMRS端口组携带的所述参考信号进行信道估计。
- 根据权利要求10-15任一项所述的方法,其特征在于,所述方法还包括:当所述第一通信方为基站,所述第二通信方为UE时,接收所述第一通信方发送预设数量比特的下行控制信息DCI,所述DCI指示DMRS端口组中所述参考信号对应的DMRS端口;所述预设数量比特对应的最大值大于或等于所述DMRS端口组包括的最大DMRS端口数;当所述第二通信方为基站,所述第一通信方为UE时,向所述第一通信方发送预设数量比特的下行控制信息DCI,所述DCI指示DMRS端口组中所述参考信号对应的DMRS端口;所述预设数量比特对应的最大值大于或等于所述DMRS端口组包括的最大DMRS端口数。
- 一种信号发送装置,其特征在于,应用于第一通信方,所述装置包括:确定单元,用于确定解调参考信号DMRS端口组中需要向第二通信方发送的参考信号对应的DMRS端口,所述DMRS端口组中每个DMRS端口平均占用一个资源元素;发送单元,用于使用所述DMRS端口,发送所述参考信号;其中,所述第一通信方为基站,所述第二通信方为用户设备UE,或者,所述第一通信方为UE,所述第二通信方为基站。
- 根据权利要求20所述的装置,其特征在于,所述DMRS端口组占用的符号数为1;所述DMRS端口组包括的每个DMRS端口按照频分复用方式占用1个资源元素;或者所述DMRS端口组包括的每个码分复用CDM组按照第一预设长度的频域CDM方式占用第一预设个数的资源元素,每个CDM组包括所述第一预设个数的DMRS端口,所述第一预设个数的值与所述第一预设长度的值相同,所述第一预设个数的值大于等于2。
- 根据权利要求21所述的装置,其特征在于,每个CDM组占用的所述第一预设个数的资源元素相邻;或者每个CDM组占用的所述第一预设个数的资源元素不相邻。
- 根据权利要求20所述的装置,其特征在于,所述DMRS端口组占用的符号数为预设值;所述预设值大于或等于2;所述DMRS端口组包括的每个DMRS端口按照频分复用方式占用1个资源元素;或者所述DMRS端口组包括的每个DMRS端口按照时分复用方式占用1个资源元素;或者所述DMRS端口组包括的每个DMRS端口按照频分复用方式以及时分复用方式占用1个资源元素;或者所述DMRS端口组包括的除码分复用CDM组外的每个DMRS端口按照频分复用方式以及时分复用方式占用1个资源元素;所述DMRS端口组包括的每个CDM组按照频分复用、以及长度为所述预设值的时域CDM方式占用所述预设值的资源元素,每个CDM组包括所述预设值个的DMRS端口;或者所述DMRS端口组包括的每个CDM组按照第二预设长度的频域CDM方式、以及长度为所述预设值的时域CDM方式占用第二预设个数的资源元素,每个CDM组包括所述第二预设个数的DMRS端口,所述第二预设个数的值大于或等于所述第二预设长度的值,且小于或等于所述预设值的倍数的所述第二 预设长度的值;或者所述DMRS端口组包括的每个CDM组按照第三预设长度的频域CDM方式、以及时分复用方式占用第三预设个数的资源元素,每个CDM组包括所述第三预设个数的DMRS端口,所述第三预设个数的值大于或等于所述第三预设长度的值。
- 根据权利要求23所述的装置,其特征在于,在所述DMRS端口组占用所有符号中的的目标符号上,被占用的资源元素相对于所述目标符号的起始位置偏移预设偏移量,所述目标符号为存在未被所述DMRS端口组包括的DMRS端口占用的资源元素的符号。
- 根据权利要求23所述的装置,其特征在于,每个CDM组在每个符号上占用的多个资源元素相邻;或者每个CDM组在每个符号上占用的多个资源元素不相邻。
- 根据权利要求21-25任一项所述的装置,其特征在于,所述DMRS端口组占用的一部分符号位于前置符号位置,所述DMRS端口组占用的另一部分符号位于增量符号位置;或者所述DMRS端口组占用的所有符号位于前置符号位置;或者所述DMRS端口组占用的所有符号位于增量符号位置。
- 根据权利要求21-25任一项所述的装置,其特征在于,所述DMRS端口组占用的符号被配置给一个或多个时隙;当所述DMRS端口组占用的符号被配置给多个时隙时,所述多个时隙为连续的或不连续的;所述确定单元,具体用于基于配置给当前时隙的DMRS端口组所占用的符号,确定当前时隙中DMRS端口组中需要向第二通信方发送的参考信号对应的DMRS端口。
- 根据权利要求20-25任一项所述的装置,其特征在于,所述装置还包括处理单元,用于:当所述第一通信方为基站,所述第二通信方为UE时,向所述第二通信方发送预设数量比特的下行控制信息DCI,所述DCI指示DMRS端口组中所述参考信号对应的DMRS端口;所述预设数量比特对应的最大值大于或等于所述DMRS端口组包括的最大DMRS端口数;当所述第二通信方为基站,所述第一通信方为UE时,接收所述第二通信方发送的预设数量比特的下行控制信息DCI,所述DCI指示DMRS端口组中所述参考信号对应的DMRS端口;所述预设数量比特对应的最大值大于或等于所述DMRS端口组包括的最大DMRS端口数。
- 一种信号接收装置,其特征在于,应用于第二通信方,所述装置包括:确定单元,用于确定解调参考信号DMRS端口组中第一通信方需要发送的参考信号对应的DMRS端口,所述DMRS端口组中每个DMRS端口平均占用一个资源元素;接收单元,用于接收使用所述DMRS端口发送的所述参考信号;其中,所述第一通信方为基站,所述第二通信方为用户设备UE,或者,所述第一通信方为UE,所述第二通信方为基站。
- 根据权利要求29所述的装置,其特征在于,所述DMRS端口组占用的符号数为1;所述DMRS端口组包括的每个DMRS端口按照频分复用方式占用1个资源元素;或者所述DMRS端口组包括的每个码分复用CDM组按照第一预设长度的频域CDM方式占用第一预设个数的资源元素,每个CDM组包括所述第一预设个数的DMRS端口,所述第一预设个数的值与所述第一预设长度的值相同,所述第一预设个数的值大于等于2。
- 根据权利要求30所述的装置,其特征在于,每个CDM组占用的所述第一预设个数的资源元素相邻;或者每个CDM组占用的所述第一预设个数的资源元素不相邻。
- 根据权利要求29所述的装置,其特征在于,所述DMRS端口组占用的符号数为预设值;所述预设值大于或等于2;所述DMRS端口组包括的每个DMRS端口按照频分复用方式占用1个资源元素;或者所述DMRS端口组包括的每个DMRS端口按照时分复用方式占用1个资源元素;或者所述DMRS端口组包括的每个DMRS端口按照频分复用方式以及时分复用方式占用1个资源元素;或者所述DMRS端口组包括的除码分复用CDM组外的每个DMRS端口按照频分复用方式以及时分复用方式占用1个资源元素;所述DMRS端口组包括的每个CDM组按照频分复用方式、以及长度为所述预设值的时域CDM方式占用所述预设值的资源元素,每个CDM组包括所述预设值个的DMRS端口;或者所述DMRS端口组包括的每个CDM组按照第二预设长度的频域CDM方式、以及长度为所述预设值的时域CDM方式占用第二预设个数的资源元素,每个CDM组包括所述第二预设个数的DMRS端口,所述第二预设个数的值大于或等于所述第二预设长度的值,且小于或等于所述预设值的倍数的所述第二预设长度的值;或者所述DMRS端口组包括的每个CDM组按照第三预设长度的频域CDM方式、以及时分复用方式占用第三预设个数的资源元素,每个CDM组包括所述第三预设个数的DMRS端口,所述第三预设个数的值大于或等于所述第三预设长度的值。
- 根据权利要求32所述的装置,其特征在于,在所述DMRS端口组占用所有符号中的目标符号上,被占用的资源元素相对于所述目标符号的起始位置偏移预设偏移量,所述目标符号为存在未被所述DMRS端口组包括的DMRS端口占用的资源元素的符号。
- 根据权利要求32所述的装置,其特征在于,每个CDM组在每个符号上占用的多个资源元素相邻;或者每个CDM组在每个符号上占用的多个资源元素不相邻。
- 根据权利要求30-34任一项所述的装置,其特征在于,所述DMRS端口组占用的一部分符号位于前置符号位置,所述DMRS端口组占用的另一部分符号位于增量符号位置;或者所述DMRS端口组占用的所有符号位于前置符号位置;或者所述DMRS端口组占用的所有符号位于增量符号位置。
- 根据权利要求30-34任一项所述的装置,其特征在于,所述DMRS端口组占用的符号被配置给一个或多个时隙;当所述DMRS端口组占用的符号被配置给多个时隙时,所述多个时隙为连续的或不连续的;所述装置还包括:估计单元,用于当所述DMRS端口组占用的符号被配置给多个时隙时,利用所述多个时隙中部分或全部时隙上所述DMRS端口组携带的所述参考信号进行信道估计。
- 根据权利要求36所述的装置,其特征在于,所述估计单元,具体用于:当所述DMRS端口组占用的符号被配置给多个时隙时,若所述多个时隙中一个时隙上不包括所述DMRS端口组,则利用该时隙之前的时隙中所述DMRS端口组携带的所述参考信号进行信道估计;或者,利用该时隙之后的时隙中所述DMRS端口组携带的所述参考信号进行信道估计;或者,利用该时隙之前的时隙和该时隙之后的时隙中所述DMRS端口组携带的所述参考信号进行信道估计;若所述多个时隙中一个时隙上包括所述DMRS端口组,则利用该时隙中所述DMRS端口组携带的所述参考信号进行信道估计;或者,利用该时隙和该时隙之前的时隙中所述DMRS端口组携带的所述参考信号进行信道估计;或者,利用该时隙和该时隙之前的时隙中所述DMRS端口组携带的所述参考信号进行信道估计;或者,利用该时隙、该时隙之前的时隙和该时隙之后的时隙中所述DMRS端口组携带的所述参考信号进行信道估计。
- 根据权利要求29-34任一项所述的装置,其特征在于,所述装置还包括处理单元,用于:当所述第一通信方为基站,所述第二通信方为UE时,接收所述第一通信方发送预设数量比特的下行控制信息DCI,所述DCI指示DMRS端口组中所述参考信号对应的DMRS端口;所述预设数量比特对应的最大值大于或等于所述DMRS端口组包括的最大DMRS端口数;当所述第二通信方为基站,所述第一通信方为UE时,向所述第一通信方发送预设数量比特的下行控制信息DCI,所述DCI指示DMRS端口组中所述参考信号对应的DMRS端口;所述预设数量比特对应的最大值大于或等于所述DMRS端口组包括的最大DMRS端口数。
- 一种电子设备,其特征在于,包括处理器和机器可读存储介质,所述机器可读存储介质存储有能够被所述处理器执行的机器可执行指令,所述处理器被所述机器可执行指令促使:实现权利要求1-9任一所述的方法步骤,或实现权利要求10-19任一所述的方法步骤。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质内存储有计算机程序,所述计算机程序被处理器执行时实现权利要求1-9任一所述的方法步骤,或实现权利要求10-19任一所述的方法步骤。
- 一种计算机程序,其特征在于,所述计算机程序被处理器执行时实现权利要求1-9任一所述的方法步骤,或实现权利要求10-19任一所述的方法步骤。
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