CN111541526B - Reference signal transmission method and device - Google Patents

Reference signal transmission method and device Download PDF

Info

Publication number
CN111541526B
CN111541526B CN201910054751.4A CN201910054751A CN111541526B CN 111541526 B CN111541526 B CN 111541526B CN 201910054751 A CN201910054751 A CN 201910054751A CN 111541526 B CN111541526 B CN 111541526B
Authority
CN
China
Prior art keywords
resource
resource unit
reference signal
port
resource units
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910054751.4A
Other languages
Chinese (zh)
Other versions
CN111541526A (en
Inventor
刘建琴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201910054751.4A priority Critical patent/CN111541526B/en
Priority to PCT/CN2020/071991 priority patent/WO2020151531A1/en
Publication of CN111541526A publication Critical patent/CN111541526A/en
Application granted granted Critical
Publication of CN111541526B publication Critical patent/CN111541526B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0044—OVSF [orthogonal variable spreading factor]
    • 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
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The application provides a transmission method of a reference signal, which comprises the following steps: the method comprises the steps that a sending terminal device determines resource units occupied by reference signals from a reference signal resource set, wherein the reference signal resource set comprises T multiplied by K resource units, the T multiplied by K resource units are formed by K continuous resource units on each symbol of T continuous symbols of a physical resource block PRB, one PRB comprises N resource units on each symbol of the T continuous symbols, the T multiplied by K resource units in the T continuous symbols correspond to at least one port group of the reference signals, each port group in the at least one port group comprises at least two ports, and the reference signals corresponding to the ports in the at least one port group are orthogonally multiplexed on the T multiplied by K resource units; the reference signals are transmitted over T × K resource elements. The embodiment of the application designs a new reference signal configuration pattern, supports more types of data transmission modes, reduces the energy consumption for detecting the reference signal, and improves the use efficiency of resources.

Description

Reference signal transmission method and device
Technical Field
The present application relates to the field of communications, and in particular, to a method and an apparatus for transmitting a reference signal.
Background
The reference signal is used for supporting the receiving end equipment to carry out channel estimation. The reference signals are typically only transmitted on the scheduled physical resource blocks. The reference signal may occupy all 12 subcarriers within one symbol in a Physical Resource Block (PRB) to support a maximum number of multiple orthogonal antenna ports. With the development of communication technology, a new data channel transmission mode appears, a data channel and a corresponding reference signal can only occupy part of subcarriers in one symbol in a PRB, and the maximum number of orthogonal ports cannot be supported by continuing using a mode of resource mapping of the current reference signal in the PRB. Therefore, a new resource mapping scheme for the reference signal needs to be designed.
Disclosure of Invention
The application provides a transmission method and a device of reference signals, which can support the maximum number of reference signal orthogonal ports in a new data channel transmission mode.
In a first aspect, an embodiment of the present application provides a method for transmitting a reference signal, including: the method comprises the steps that a sending terminal device determines resource units occupied by reference signals from a reference signal resource set, wherein the reference signal resource set comprises T multiplied by K resource units, the T multiplied by K resource units are composed of K continuous resource units on each symbol of T continuous symbols of a physical resource block PRB, wherein one PRB comprises N resource units on each symbol of the T continuous symbols, T, N and K are positive integers, N > K is larger than or equal to 1, T is larger than or equal to 1, the T multiplied by K resource units in the T continuous symbols correspond to at least one port group of the reference signals, each port group in the at least one port group comprises at least two ports, and the reference signals corresponding to the ports in the at least one port group are orthogonally multiplexed on the T multiplied by K resource units; transmitting the reference signal on the T × K resource elements.
In the embodiment of the present application, a new reference signal configuration pattern is designed, that is, through multiple orthogonal multiplexing modes, reference signals corresponding to multiple ports can implement orthogonal multiplexing on part of resource units in one PRB, and can support more types of data transmission modes; moreover, the reference signals are mapped on the continuous part of resource units in one PRB, so that the energy consumption for detecting the reference signals can be reduced; in addition, the reference signal occupies part of resources of the PRB, and other resource units on the PRB may be used to transmit other signaling or information, which is beneficial to improving the utilization efficiency of the resources.
In a possible implementation manner of the first aspect, the orthogonally multiplexing the ports in the at least one port group over the T × K resource units includes: and the reference signals corresponding to the ports in the at least one port group are orthogonally multiplexed on the T multiplied by K resource units in at least one mode of cyclic shift, code division multiplexing, frequency division multiplexing and time division multiplexing of sequences.
In the embodiment of the present application, orthogonal multiplexing of reference signals on part of resource units of one PRB may be flexibly implemented through one orthogonal multiplexing manner or any combination of multiple orthogonal multiplexing manners.
In a possible implementation manner of the first aspect, the orthogonal code in the code division multiplexing is a time domain orthogonal spreading code and/or a frequency domain orthogonal spreading code.
In a possible implementation manner of the first aspect, there are at least two different values of K, and orthogonal multiplexing manners of reference signals corresponding to ports in the at least one port group on the T × K resource units are different.
In this embodiment of the present application, different reference signal resource sets may correspond to different orthogonal multiplexing modes, and the sending end device may determine a mapping mode of a reference signal on a resource unit according to a configuration parameter of the reference signal resource set, so as to reduce complexity of mapping the reference signal by the sending end device.
In a possible implementation manner of the first aspect, the positions of the K consecutive resource units are the same as the positions of the K consecutive resource units occupied by the sending end device on one symbol of data transmission in one PRB.
In the embodiment of the present application, the position of the resource unit for transmitting data in the frequency domain is the same as the position of the resource unit for transmitting the reference signal in the frequency domain, and the receiving end device can determine the position of the reference signal in the frequency domain while receiving the data, so that on one hand, the complexity of mapping the reference signal by the sending end device can be reduced, and on the other hand, the energy consumption required by the receiving end device to detect the reference signal can be reduced.
In a possible implementation manner of the first aspect, when T is equal to 1 and K is equal to 3, 4, or 6, reference signals corresponding to ports in the at least one port group are orthogonal over the T × K resource elements through cyclic shift of sequences and frequency division multiplexing.
In the embodiment of the present application, for the case where 3, 4, or 6 resource elements in one symbol are used for mapping reference signals, support of a maximum number of 4 or 6 orthogonal ports may be achieved.
In a possible implementation manner of the first aspect, when T is equal to 1 and K is equal to 4 or 6, the reference signals corresponding to the ports in the at least one port group are orthogonal to each other through frequency domain orthogonal spreading codes and frequency division multiplexing on the T × K resource units.
In the embodiment of the present application, for the case that 4 resource elements in one symbol are used for mapping reference signals, support of a maximum number of 4 orthogonal ports can be achieved; for the case where 6 resource elements in one symbol are used for mapping reference signals, support of a maximum number of 4 or 6 orthogonal ports can be achieved.
In a possible implementation manner of the first aspect, when T is equal to 2 or 4, and K is equal to 3, 4, or 6, reference signals corresponding to ports in the at least one port group are orthogonal over the T × K resource elements through cyclic shift of sequences, frequency division multiplexing, and time domain orthogonal spreading codes; or, through time domain orthogonal spread spectrum code and frequency division multiplexing orthogonality; or, orthogonal by frequency domain orthogonal spread spectrum code and time division multiplexing; or orthogonal by frequency domain orthogonal spreading codes, frequency division multiplexing and time division multiplexing.
In the embodiment of the present application, for the case where 3, 4, or 6 resource elements in two symbols are used for mapping reference signals, support of a maximum number of 4, 6, 8, or 12 orthogonal ports may be achieved.
In a possible implementation manner of the first aspect, the frequency division multiplexing is frequency division multiplexing with comb teeth of 2, or frequency division multiplexing with comb teeth of 3.
In the embodiment of the present application, for example, for different K values, different frequency division multiplexing manners are adopted, and a manner of mapping a reference signal to a part of resource units in one PRB is more flexible, so that support of different maximum number of orthogonal ports can be achieved.
In a possible implementation manner of the first aspect, the frequency domain orthogonal spreading code is a length-2 orthogonal spreading code, or a length-4 orthogonal spreading code.
In the embodiment of the present application, for example, for different K values, orthogonal spreading codes with different lengths are used to map reference signals to partial resource units in one PRB, so that support of the maximum number of orthogonal ports can be effectively achieved. For the case that the length of the frequency domain orthogonal spreading code is 2 or 4, the resource units on multiple subcarriers can be used for multiple ports for mapping the reference signals, and the flexibility of mapping the reference signals on the resource units is increased.
In a possible implementation manner of the first aspect, the time-domain orthogonal spreading code is a length-2 orthogonal spreading code, or a length-4 orthogonal spreading code.
In the embodiment of the present application, for example, for different K values, orthogonal spreading codes with different lengths are used to map reference signals to partial resource units in one PRB, so that support of the maximum number of orthogonal ports can be effectively achieved. For the case that the length of the time domain orthogonal spreading code is 2 or 4, the resource units on multiple symbols can be used for multiple ports for mapping the reference signal, thereby increasing the flexibility of mapping the reference signal on the resource units.
In a possible implementation manner of the first aspect, a resource element position corresponding to the at least one port group in a first PRB is different from a resource element position corresponding to the at least one port group in a second PRB, and the first PRB and the second PRB are two adjacent PRBs occupied by the reference signal.
In the embodiment of the application, on different PRBs, the mapping mode of at least one port group of the reference signal is different, so that the mapping density and the mapping efficiency of each port of the reference signal on all PRBs can be maximized.
In a second aspect, an embodiment of the present application provides a method for transmitting a reference signal, including: receiving end equipment determines resource units occupied by reference signals from a reference signal resource set, wherein the reference signal resource set comprises T multiplied by K resource units, the T multiplied by K resource units are composed of K continuous resource units on each symbol of T continuous symbols of a physical resource block PRB, wherein one PRB comprises N resource units on each symbol of the T continuous symbols, T, N and K are positive integers, N > K is more than or equal to 1, T is more than or equal to 1, the T multiplied by K resource units in the T continuous symbols correspond to at least one port group of the reference signals, each port group in the at least one port group comprises at least two ports, and the reference signals corresponding to the ports in the at least one port group are orthogonally multiplexed on the T multiplied by K resource units; receiving the reference signal on the T × K resource elements.
In the embodiment of the present application, a new reference signal configuration pattern is designed, that is, through multiple orthogonal multiplexing modes, reference signals corresponding to multiple ports can implement orthogonal multiplexing on part of resource units in one PRB, and can support more types of data transmission modes; in addition, a part of resource units which are continuous in the time domain and continuous in the frequency domain in one PRB are used for mapping the reference signal, so that the energy consumption of detecting the reference signal by receiving end equipment can be reduced; in addition, the reference signal occupies part of resources of the PRB, and other resource units on the PRB may be used to transmit other signaling or information, which is beneficial to improving the utilization efficiency of the resources.
In a possible implementation manner of the second aspect, the orthogonally multiplexing the ports in the at least one port group over the T × K resource units includes: and the reference signals corresponding to the ports in the at least one port group are orthogonally multiplexed on the T multiplied by K resource units in at least one mode of cyclic shift, code division multiplexing, frequency division multiplexing and time division multiplexing of sequences.
In the embodiment of the present application, orthogonal multiplexing of reference signals on part of resource units of one PRB may be flexibly implemented through one orthogonal multiplexing mode or any combination of multiple orthogonal multiplexing modes.
In a possible implementation manner of the second aspect, the orthogonal code in the code division multiplexing is a time domain orthogonal spreading code and/or a frequency domain orthogonal spreading code.
In a possible implementation manner of the second aspect, there are at least two different values of K, and orthogonal multiplexing manners of reference signals corresponding to ports in the at least one port group on the T × K resource units are different.
In this embodiment of the present application, different reference signal resource sets may correspond to different orthogonal multiplexing modes, and the receiving end device may determine a mapping mode of a reference signal on a resource unit according to configuration parameters of the reference signal resource set, so as to reduce complexity of mapping the reference signal by the receiving end device.
In a possible implementation manner of the second aspect, the positions of the K consecutive resource units are the same as the positions of the K consecutive resource units occupied by the receiving end device on one symbol of data reception in one PRB.
In the embodiment of the present application, the resource unit for transmitting data is further configured to transmit a reference signal, and the receiving end device may detect the reference signal in a resource area occupied by the data while receiving the data, so that on one hand, complexity of mapping the reference signal by the receiving end device may be reduced, and on the other hand, energy consumption required by the receiving end device to detect the reference signal may be reduced.
In a possible implementation manner of the second aspect, in a case that T is equal to 1 and K is equal to 3, 4, or 6, reference signals corresponding to ports in the at least one port group are orthogonal through cyclic shift of sequences and frequency division multiplexing on the T × K resource units.
In the embodiment of the present application, for the case that 3, 4, or 6 resource elements in one symbol are used for mapping the corresponding ports of the reference signal, the support of the maximum number of orthogonal ports of 4 or 6 may be achieved.
In a possible implementation manner of the second aspect, in a case that T is equal to 1 and K is equal to 4 or 6, reference signals corresponding to ports in the at least one port group are orthogonal to each other through frequency domain orthogonal spreading codes and frequency division multiplexing on the T × K resource units.
In the embodiment of the present application, for the case that 4 resource units in one symbol are used for mapping ports corresponding to reference signals, support of orthogonal ports with the maximum number of 4 can be achieved; for the case that 6 resource elements in one symbol are used for mapping the corresponding ports of the reference signal, the support of a maximum number of 4 or 6 orthogonal ports can be achieved.
In a possible implementation manner of the second aspect, in a case that T is equal to 2 or 4, and K is equal to 3, 4, or 6, reference signals corresponding to ports in the at least one port group are orthogonal over the T × K resource units through cyclic shift of sequences, frequency division multiplexing, and time domain orthogonal spreading codes; or, through time domain orthogonal spread spectrum code and frequency division multiplexing orthogonality; or, orthogonal by frequency domain orthogonal spread spectrum code and time division multiplexing; or orthogonal by frequency domain orthogonal spreading codes, frequency division multiplexing and time division multiplexing.
In the embodiment of the present application, for the case that 3, 4, or 6 resource elements in two symbols are used for mapping the corresponding ports of the reference signal, the support of the maximum number of orthogonal ports of 4, 6, 8, or 12 may be achieved.
In one possible implementation manner of the second aspect, the frequency division multiplexing is frequency division multiplexing with comb teeth of 2, or frequency division multiplexing with comb teeth of 3.
In the embodiment of the present application, for example, for different K values, different frequency division multiplexing manners are adopted, and reference signals are mapped to part of resource units in one PRB, so that support of the maximum number of orthogonal ports can be effectively achieved.
In a possible implementation manner of the second aspect, the frequency domain orthogonal spreading code is a length-2 orthogonal spreading code, or a length-4 orthogonal spreading code.
In the embodiment of the present application, for example, for different K values, orthogonal spreading codes with different lengths are used to map reference signals to partial resource units in one PRB, so that support of the maximum number of orthogonal ports can be effectively achieved. For the case that the length of the frequency domain orthogonal spreading code is 2 or 4, the resource units on multiple subcarriers can be used for multiple ports for mapping the reference signals, and the flexibility of mapping the reference signals on the resource units is increased.
In a possible implementation manner of the second aspect, the time domain orthogonal spreading code is a length-2 orthogonal spreading code, or a length-4 orthogonal spreading code. In the embodiment of the present application, for example, for different K values, orthogonal spreading codes with different lengths are used to map reference signals to partial resource units in one PRB, so that support of the maximum number of orthogonal ports can be effectively achieved. For the case that the length of the time domain orthogonal spreading code is 2 or 4, the resource units on multiple symbols can be used for multiple ports for mapping the reference signal, thereby increasing the flexibility of mapping the reference signal on the resource units.
In a possible implementation manner of the second aspect, a corresponding resource element position of the at least one port group in a first PRB is different from a corresponding resource element position in a second PRB, and the first PRB and the second PRB are two adjacent PRBs occupied by the reference signal.
In the embodiment of the application, on different PRBs, the mapping mode of at least one port group of the reference signal is different, so that the mapping density and the mapping efficiency of each port of the reference signal on all PRBs can be maximized.
In a third aspect, an embodiment of the present application provides a communication device, including:
a processing module, configured to determine resource units occupied by a reference signal, where a reference signal resource set includes T × K resource units, where the T × K resource units are composed of K consecutive resource units on each of T consecutive symbols of one physical resource block PRB, where one PRB includes N resource units on each of the T consecutive symbols, T, N and K are positive integers, N > K is greater than or equal to 1, T is greater than or equal to 1, the T × K resource units in the T consecutive symbols correspond to at least one port group of the reference signal, each port group of the at least one port group includes at least two ports, and reference signals corresponding to ports in the at least one port group are orthogonally multiplexed on the T × K resource units; a sending module, configured to send the reference signal on the T × K resource units.
In a possible implementation manner of the third aspect, the orthogonally multiplexing the ports in the at least one port group over the T × K resource units includes: and the reference signals corresponding to the ports in the at least one port group are orthogonally multiplexed on the T multiplied by K resource units in at least one mode of cyclic shift, code division multiplexing, frequency division multiplexing and time division multiplexing of sequences.
In a possible implementation manner of the third aspect, the orthogonal code in the code division multiplexing is a time domain orthogonal spreading code and/or a frequency domain orthogonal spreading code.
In a possible implementation manner of the third aspect, there are at least two different values of K, and orthogonal multiplexing manners of reference signals corresponding to ports in the at least one port group on the T × K resource units are different.
In a possible implementation manner of the third aspect, the positions of the K consecutive resource units are the same as the positions of the K consecutive resource units occupied by the sending-end device on one symbol of data transmission in one PRB.
In a possible implementation manner of the third aspect, when T is equal to 1 and K is equal to 3, 4, or 6, reference signals corresponding to ports in the at least one port group are orthogonal through cyclic shift of sequences and frequency division multiplexing on the T × K resource units.
In a possible implementation manner of the third aspect, when T is equal to 1 and K is equal to 4 or 6, the reference signals corresponding to the ports in the at least one port group are orthogonal to each other through frequency domain orthogonal spreading codes and frequency division multiplexing on the T × K resource units.
In a possible implementation manner of the third aspect, when T is equal to 2 or 4, and K is equal to 3, 4, or 6, reference signals corresponding to ports in the at least one port group are orthogonal over the T × K resource elements through cyclic shift of sequences, frequency division multiplexing, and time domain orthogonal spreading codes; or, through time domain orthogonal spread spectrum code and frequency division multiplexing orthogonality; or, orthogonal by frequency domain orthogonal spread spectrum code and time division multiplexing; or orthogonal by frequency domain orthogonal spreading codes, frequency division multiplexing and time division multiplexing.
In a possible implementation manner of the third aspect, the frequency division multiplexing is frequency division multiplexing with comb teeth of 2, or frequency division multiplexing with comb teeth of 3.
In a possible implementation manner of the third aspect, the frequency domain orthogonal spreading code is a length-2 orthogonal spreading code, or a length-4 orthogonal spreading code.
In a possible implementation manner of the third aspect, the time-domain orthogonal spreading code is a length-2 orthogonal spreading code, or a length-4 orthogonal spreading code.
In a possible implementation manner of the third aspect, a resource element position corresponding to the at least one port group in a first PRB is different from a resource element position corresponding to the at least one port group in a second PRB, and the first PRB and the second PRB are two adjacent PRBs occupied by the reference signal.
In a fourth aspect, an embodiment of the present application provides a communication device, including: a processing module, configured to determine resource units occupied by a reference signal from a reference signal resource set, where the reference signal resource set includes T × K resource units, where the T × K resource units are composed of K consecutive resource units on each of T consecutive symbols of one physical resource block PRB, where one PRB includes N resource units on each of the T consecutive symbols, T, N and K are positive integers and N > K is greater than or equal to 1, T is greater than or equal to 1, the T × K resource units in the T consecutive symbols correspond to at least one port group of the reference signal, each port group of the at least one port group includes at least two ports, and reference signals corresponding to ports in the at least one port group are orthogonally multiplexed on the T × K resource units; a receiving module, configured to receive the reference signal on the T × K resource units.
In a possible implementation manner of the fourth aspect, the orthogonally multiplexing the ports in the at least one port group over the T × K resource units includes: and the reference signals corresponding to the ports in the at least one port group are orthogonally multiplexed on the T multiplied by K resource units in at least one mode of cyclic shift, code division multiplexing, frequency division multiplexing and time division multiplexing of sequences.
In a possible implementation manner of the fourth aspect, the orthogonal code in the code division multiplexing is a time domain orthogonal spreading code and/or a frequency domain orthogonal spreading code.
In a possible implementation manner of the fourth aspect, there are at least two different K values, and orthogonal multiplexing manners of the reference signals corresponding to the ports in the at least one port group on the T × K resource units are different.
In a possible implementation manner of the fourth aspect, the positions of the K consecutive resource units are the same as the positions of the K consecutive resource units occupied by the sending end device on one symbol of data transmission in one PRB.
In a possible implementation manner of the fourth aspect, in a case where T is equal to 1 and K is equal to 3, 4, or 6, the reference signals corresponding to the ports in the at least one port group are orthogonal through cyclic shift of sequences and frequency division multiplexing on the T × K resource units.
In a possible implementation manner of the fourth aspect, in a case where T is equal to 1 and K is equal to 4 or 6, the reference signals corresponding to the ports in the at least one port group are orthogonal through frequency domain orthogonal spreading codes and frequency division multiplexing on the T × K resource units.
In a possible implementation manner of the fourth aspect, in a case that T is equal to 2 or 4 and K is equal to 3, 4, or 6, reference signals corresponding to ports in the at least one port group are orthogonal over the T × K resource units through cyclic shift of sequences, frequency division multiplexing, and time domain orthogonal spreading codes; or, through time domain orthogonal spread spectrum code and frequency division multiplexing orthogonality; or, orthogonal by frequency domain orthogonal spread spectrum code and time division multiplexing; or orthogonal by frequency domain orthogonal spreading codes, frequency division multiplexing and time division multiplexing.
In a possible implementation manner of the fourth aspect, the frequency division multiplexing is frequency division orthogonal with comb teeth of 2, or frequency division orthogonal with comb teeth of 3.
In a possible implementation manner of the fourth aspect, the frequency domain orthogonal spreading code is a length-2 orthogonal spreading code, or a length-4 orthogonal spreading code.
In a possible implementation manner of the fourth aspect, the time-domain orthogonal spreading code is a length-2 orthogonal spreading code, or a length-4 orthogonal spreading code.
In a possible implementation manner of the fourth aspect, a corresponding resource element position of the at least one port group in a first PRB is different from a corresponding resource element position in a second PRB, and the first PRB and the second PRB are two adjacent PRBs occupied by the reference signal.
In a fifth aspect, an embodiment of the present application provides a communication apparatus, which includes means for performing the first aspect or any possible implementation manner of the first aspect.
Alternatively, the communication apparatus of the fifth aspect may be a terminal, or may be a component (e.g., a chip or a circuit, etc.) that is available for a terminal.
Alternatively, the communication apparatus of the fifth aspect may be a base station, or may be a component (e.g., a chip or a circuit, etc.) for a base station.
In a sixth aspect, embodiments of the present application provide a communication apparatus, which includes means for performing the second aspect or any possible implementation manner of the second aspect.
Alternatively, the communication apparatus of the sixth aspect may be a terminal, or may be a component (e.g., a chip or a circuit, etc.) that is available for a terminal.
Alternatively, the communication device of the seventh aspect may be a base station, or may be a component (e.g., a chip or a circuit) for a base station.
In a seventh aspect, an embodiment of the present application provides a storage medium, where the storage medium stores instructions for implementing the method according to the first aspect or any possible implementation manner of the first aspect.
In an eighth aspect, the present application provides a storage medium storing instructions for implementing the method according to the second aspect or any one of the possible implementation manners of the second aspect.
In a ninth aspect, the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first aspect or any of its possible implementations.
In a tenth aspect, the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the second aspect or any of the possible implementations of the second aspect.
In an eleventh aspect, the present application provides a communication apparatus, including at least one processor and a communication interface, where the communication apparatus performs information interaction with other communication apparatuses, and when program instructions are executed in the at least one processor, the communication apparatus is enabled to implement the functions of the method according to the first aspect or any one of the possible implementation manners of the first aspect on the sending end device.
In a twelfth aspect, the present application provides a communication apparatus, which includes at least one processor and a communication interface, where the communication interface is used for the communication apparatus to perform information interaction with other communication apparatuses, and when program instructions are executed in the at least one processor, the communication apparatus is enabled to implement the functions on the receiving end device in the method according to the second aspect or any possible implementation manner of the second aspect.
In a thirteenth aspect, the present application provides a chip system, where the chip system includes at least one processor, and when a program instruction is executed in the at least one processor, the function on the sending end device in the method according to the first aspect or any one of the possible implementation manners of the first aspect is implemented.
In a fourteenth aspect, the present application provides a chip system, where the chip system includes at least one processor, and when program instructions are executed in the at least one processor, the functions on the receiving end device in the method according to the second aspect or any possible implementation manner of the second aspect are implemented.
Drawings
Fig. 1 is a schematic diagram of a scenario of a communication system to which an embodiment of the present application is applicable.
FIG. 2 is a schematic diagram of a data processing process according to one embodiment of the present application.
Fig. 3 is a schematic diagram of port mapping of demodulation reference signals.
Fig. 4 is a schematic flow chart of a transmission method of a reference signal according to the present application.
Fig. 5 is a schematic diagram of a reference signal port mapping according to one embodiment provided herein.
Fig. 6 is a schematic diagram of a reference signal port mapping according to one embodiment provided herein.
Fig. 7 is a schematic diagram of a reference signal port mapping according to one embodiment provided herein.
Fig. 8 is a schematic diagram of a reference signal port mapping according to one embodiment provided herein.
Fig. 9 is a schematic diagram of a reference signal port mapping according to one embodiment provided herein.
Fig. 10 is a schematic diagram of a reference signal port mapping according to one embodiment provided herein.
Fig. 11 is a schematic diagram of a reference signal port mapping according to one embodiment provided herein.
Fig. 12 is a schematic diagram of a reference signal port mapping according to one embodiment provided herein.
Fig. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application.
Fig. 14 is a schematic structural diagram of a communication device according to an embodiment of the present application.
Fig. 15 is a schematic configuration diagram of a communication apparatus according to an embodiment of the present application.
Fig. 16 is a schematic configuration diagram of a communication apparatus according to an embodiment of the present application.
Detailed Description
The technical solution in the present application will be described below with reference to the accompanying drawings.
In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a. b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c can be single or multiple. In addition, in the embodiments of the present application, the words "first", "second", and the like do not limit the number and the execution order. In addition, in the embodiment of the present application, words such as "401", "402", "403" and the like are merely used for identification for convenience of description, and do not limit the order in which steps are performed.
It is noted that, in the present application, words such as "exemplary" or "for example" are used to mean exemplary, illustrative, or descriptive. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
The technical scheme of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, future fifth generation (5G) system or New Radio (NR), Unlicensed spectrum wireless communication system, wireless fidelity (WiFi) system or New Radio (NR-U) under Unlicensed spectrum, and the like.
Fig. 1 is a schematic diagram of a scenario of a communication system to which an embodiment of the present application is applicable. As shown in fig. 1, the communication system 100 includes a network device 102, and the network device 102 may include multiple antenna groups. Each antenna group can include multiple antennas, e.g., one antenna group can include antennas 104 and 106, another antenna group can include antennas 106 and 110, and an additional group can include antennas 112 and 114. 2 antennas are shown in fig. 1 for each antenna group, however, more or fewer antennas may be utilized for each group. Network device 102 can additionally include a transmitter chain and a receiver chain, each of which can comprise a plurality of components associated with signal transmission and reception (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, antennas, etc.), as will be appreciated by one skilled in the art.
Network device 102 may communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it is understood that network device 102 may communicate with any number of terminal devices similar to terminal devices 116 or 122. End devices 116 and 122 may be, for example, cellular phones, smart phones, laptops, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable device for communicating over wireless communication system 100.
As shown in fig. 1, terminal device 116 is in communication with antennas 112 and 114, where antennas 112 and 114 transmit information to terminal device 116 over forward link 116 and receive information from terminal device 116 over reverse link 120. In addition, terminal device 122 is in communication with antennas 104 and 106, where antennas 104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.
In a Frequency Division Duplex (FDD) system, forward link 116 may utilize a different frequency band than that used by reverse link 120, and forward link 124 may utilize a different frequency band than that used by reverse link 126, for example.
As another example, in Time Division Duplex (TDD) systems and full duplex (full duplex) systems, forward link 116 and reverse link 120 may use a common frequency band and forward link 124 and reverse link 126 may use a common frequency band.
Each group of antennas and/or area designed for communication is referred to as a sector of network device 102. For example, antenna groups may be designed to communicate to terminal devices in a sector of the areas covered by network device 102. During communication by network device 102 with terminal devices 116 and 122 over forward links 116 and 124, respectively, the transmitting antennas of network device 102 may utilize beamforming to improve signal-to-noise ratio of forward links 116 and 124. Moreover, mobile devices in neighboring cells can experience less interference when network device 102 utilizes beamforming to transmit to terminal devices 116 and 122 scattered randomly through an associated coverage area, as compared to a manner in which a network device transmits through a single antenna to all its terminal devices.
At a given time, network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitting apparatus and/or a wireless communication receiving apparatus. When sending data, the wireless communication sending device may encode the data for transmission. Specifically, the wireless communication transmitting device may obtain (e.g., generate, receive from other communication devices, or save in memory, etc.) a number of data bits to be transmitted over the channel to the wireless communication receiving device. Such data bits may be contained in a transport block (or transport blocks) of data, which may be segmented to produce multiple code blocks.
Furthermore, the communication system 100 may be a public land mobile network PLMN (public land mobile network) network or device-to-device (D2D) network or machine-to-machine (M2M) network or other networks, which is illustrated in fig. 1 for ease of understanding only and is a simplified schematic diagram, and other network devices may be included in the network, which are not shown in fig. 1.
In this embodiment, the network device may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) system or a Code Division Multiple Access (CDMA) system, a base station (NB) in a Wideband Code Division Multiple Access (WCDMA) system, an evolved node B (eNB/eNodeB) in a Long Term Evolution (LTE) system, a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or a relay station or an access point, or a network device in a future 5G network, for example, a transmission point (BTS or TP) in an NR system, a remote node B (NR) in a remote radio access Network (NR) system, a remote node B) in a remote radio access Network (NR) system, or a remote radio access node B (NR) in a remote radio access Network (NR) system, a remote radio access point (TP) in a remote radio access network (radio access network), or a remote radio access point (NB) in a remote radio access network system, or a remote radio access node B in a remote radio access network (WCDMA) system, a remote radio access network (eNB/eNodeB) in a wireless network system, a wireless controller in a wireless network (wireless network, a wireless controller) system, a wireless controller in a wireless network, one or a group (including multiple antenna panels) of base stations in a 5G system, etc. But also wearable devices or vehicle-mounted devices, etc. Different network devices may be located in the same cell or different cells, and are not limited herein. The embodiment of the present application may be applicable to any of the above communication systems, for example, the embodiment of the present application may be applicable to an LTE system and a subsequent evolution system such as 5G, or other wireless communication systems using various wireless access technologies, such as systems using access technologies like code division multiple access, frequency division multiple access, time division multiple access, orthogonal frequency division multiple access, single carrier frequency division multiple access, etc., and is particularly applicable to a scenario that requires channel information feedback and/or applies a secondary precoding technology, for example, a wireless network using a large-scale array-input-multiple-output (M-MIMO) technology, a wireless network using a distributed antenna technology, etc.
The terminal device in the embodiments of the present application may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a wireless terminal or manufacturing equipment in smart factory (smart factory), and the like. The embodiments of the present application do not limit the application scenarios.
In the embodiment of the application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Furthermore, the embodiment of the present application does not particularly limit the specific structure of the execution main body of the method provided by the embodiment of the present application, as long as the communication can be performed according to the method provided by the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, for example, the execution main body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module capable of calling the program and executing the program in the terminal device or the network device.
In addition, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.
In the embodiment of the application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Furthermore, the embodiment of the present application does not particularly limit the specific structure of the execution main body of the method provided by the embodiment of the present application, as long as the communication can be performed according to the method provided by the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, for example, the execution main body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module capable of calling the program and executing the program in the terminal device or the network device.
Fig. 2 shows the main steps of a data processing procedure performed by a transmitting end device (e.g., a network device) before data is transmitted through an Orthogonal Frequency Division Multiplexing (OFDM) symbol. As shown in fig. 2, a traffic stream from an upper layer (e.g., a Medium Access Control (MAC) layer) is subjected to channel coding, and then the obtained codeword is subjected to scrambling, modulation, layer mapping, and then mapped to one or more layers, and then subjected to precoding processing, resource unit mapping, and finally the modulated symbol is transmitted through an antenna port. Accordingly, the receiving-end device (e.g., terminal device) can demodulate the data. The specific data processing procedures can be referred to the description in the existing standard. In the present application, the sending end device may be a network device or a terminal device; the receiving end device may be a network device or a terminal device.
The main function of the MIMO technology is to provide spatial diversity and spatial multiplexing gain, MIMO utilizes multiple transmitting antennas to transmit signals with the same information through different paths, and at the same time, a receiving end device can obtain multiple independently fading signals of the same data symbol, thereby obtaining improved receiving reliability of diversity, and spatial diversity of the MIMO technology can be used to combat channel fading.
The precoding technology not only can effectively inhibit the interference of a plurality of users in the MIMO system, but also can greatly simplify the algorithm of receiving end equipment and simultaneously obviously improve the system capacity. The precoding technique may be that, under the condition that the channel state is known, the signal to be transmitted is pre-processed by the transmitting end device, that is, the signal to be transmitted is processed by means of a precoding matrix matched with the channel resource, so that the pre-coded signal to be transmitted is adapted to the channel, and the complexity of eliminating the inter-channel influence by the receiving end device is reduced. Therefore, by precoding the transmitted signal, the received signal quality (e.g., signal to interference plus noise ratio (SINR)) is improved. Therefore, by using the precoding technology, the transmission of the transmitting end device and the multiple receiving end devices on the same time-frequency resource can be realized, that is, the multi-user multiple input multiple output (MU-MIMO) is realized.
In order to obtain a precoding matrix that can be adapted to a channel, a transmitting end performs channel estimation in advance, usually by sending a reference signal, and obtains feedback from a receiving end, thereby determining a more accurate precoding matrix to perform precoding processing on data to be transmitted. Specifically, the sending end may be a network device, the receiving end may be a terminal device, the reference signal may be a reference signal used for downlink channel measurement, for example, a channel state information reference signal (CSI-RS), and the terminal device may perform CSI measurement according to the received CSI-RS and feed back CSI of a downlink channel to the network device; the sending end may also be a terminal device, the receiving end may be a network device, and the reference signal may be a reference signal used for uplink channel measurement, for example, a Sounding Reference Signal (SRS). The network device may perform channel estimation and/or CSI measurement according to the received SRS, and indicate CSI of the uplink channel to the terminal device. The CSI may include, for example, but not limited to, a Precoding Matrix Indicator (PMI), a Rank Indicator (RI), a Channel Quality Indicator (CQI), and the like; in order to implement channel quality measurement and data demodulation of a high-order multi-antenna system, the LTE-a system defines various pilot signals, wherein a demodulation reference signal (DMRS) is used for a data channel, such as demodulation of a Physical Downlink Shared Channel (PDSCH) or a Physical Uplink Shared Channel (PUSCH).
It should be understood that the communication method and the type of the reference signal applied to the reference signal in the present application are not particularly limited. For example, for downlink data transmission, the sending end may be, for example, a network device, the receiving end may be, for example, a terminal device, and the reference signal may be, for example, a channel state information reference signal (CSI-RS); for uplink data transmission, the sending end may be, for example, a terminal device, the receiving end may be, for example, a network device, and the reference signal may be, for example, a Sounding Reference Signal (SRS); for device-to-device (D2D) data transmission, the transmitting end may be, for example, a terminal device, the receiving end may also be, for example, a terminal device, and the reference signal may be, for example, an SRS or a DMRS.
It should be understood that the above-listed types of reference signals are exemplary only, and should not constitute any limitation on the present application, nor should the present application exclude the possibility of using other reference signals to achieve the same or similar functionality.
The following describes a mapping scheme of a reference signal on a physical resource block, taking DMRS as an example. In the NR system, DMRS supports two configurations, fig. 3 shows DMRS port mapping patterns, and the following configurations are all port configuration patterns based on complete PRBs.
In a first DMRS configuration:
(1) for a single-symbol DMRS port configuration pattern 310, the maximum number of orthogonal ports is 4, which is supported by two cyclic shifts of a sequence and a frequency-division multiplexing (FDM) mode with 2 comb teeth in each Resource Block (RB); the port group 1 and the port group 2 realize orthogonality by adopting a frequency division multiplexing mode with comb teeth of 2, the port 1 and the port 2 in the port group 1 occupy the same time-frequency resource, orthogonality is realized by two cyclic shifts of a sequence, the port 3 and the port 4 in the port group 2 occupy the same time-frequency resource, and orthogonality is realized by two cyclic shifts of the sequence.
(2) For the dual-symbol DMRS port configuration pattern 320, support of a maximum number of 8 orthogonal ports is achieved by two cyclic shifts of a sequence, an FDM (frequency division multiplexing) mode and a Code Division Multiplexing (CDM) (for example, orthogonal spreading code (OCC) code) mode in which comb teeth in each RB are 2, where the length of the OCC code in the time domain is 2, and corresponding code sequences are {11} and {1-1 }; the port group 3 and the port group 4 realize orthogonality by adopting a frequency division multiplexing mode with comb teeth of 2, ports 1 to 4 in the port group 4 occupy the same time frequency resource, orthogonality is realized by two cyclic shifts of a sequence and a time domain OCC code with the length of 2, ports 5 to 8 of the port group 5 occupy the same time frequency resource, and orthogonality is realized by two cyclic shifts of the sequence and the time domain OCC code with the length of 2.
In a second DMRS configuration:
(1) for a single-symbol DMRS port configuration pattern 330, the support of the maximum number of 6 orthogonal ports is realized through a frequency domain OCC code and an FDM mode with comb teeth of 3 in each RB, wherein the length of the frequency domain OCC code is 2, and the frequency domain code sequence is {11} and {1-1 }; the port group 1, the port group 2 and the port group 3 realize orthogonality by adopting a frequency division multiplexing mode with comb teeth of 3, the port 1 and the port 2 in the port group 1 occupy the same time-frequency resource, orthogonality is realized by a frequency domain OCC code with the length of 2, the port 3 and the port 4 in the port group 2 occupy the same time-frequency resource, orthogonality is realized by the frequency domain OCC code with the length of 2, the port 5 and the port 6 in the port group 3 occupy the same time-frequency resource, and orthogonality is realized by the frequency domain OCC code with the length of 2.
(2) For the bi-symbol DMRS port configuration pattern 340, support of a maximum number of 12 orthogonal ports is achieved by a frequency-domain OCC code, an FDM method with 3 comb teeth in each RB, and a time-domain CDM method (for example, a time-domain OCC code), where the length of the time-domain OCC code and the frequency-domain OCC code is 2, the code sequences corresponding to the time-domain OCC code are {11} and {1-1}, and the code sequences corresponding to the frequency-domain OCC code are {11} and {1-1 }; the port group 4, the port group 5 and the port group 6 realize orthogonality by adopting a frequency division multiplexing mode with 3 comb teeth, ports 1 to 4 in the port group 4 occupy the same time-frequency resource, orthogonality is realized by a frequency domain OCC code with the length of 2 and a time domain OCC code with the length of 2, ports 5 to 8 of the port group 5 occupy the same time-frequency resource, orthogonality is realized by a frequency domain OCC code with the length of 2 and a time domain OCC code with the length of 2, ports 9 to 12 of the port group 6 occupy the same time-frequency resource, and orthogonality is realized by a frequency domain OCC code with the length of 2 and a time domain OCC code with the length of 2.
For the case where all subcarriers on one PRB are used for mapping DMRS ports, the above DMRS port mapping pattern may achieve the maximum number of orthogonal ports, but is not suitable for other types of data channel transmission schemes, for example, port mapping of sub-PRBs cannot be supported. In view of the foregoing problems, embodiments of the present application provide a method for transmitting a DMRS, which can support DMRS port mapping in multiple situations.
The method of the embodiments of the present application is described below in conjunction with fig. 4. Fig. 4 is a schematic flow diagram of a method of communication according to one embodiment of the invention.
401, a sending end device determines resource units occupied by a reference signal from a reference signal resource set, where the reference signal resource set includes T × K resource units, where the T × K resource units are composed of K consecutive resource units on each of T consecutive symbols of a physical resource block PRB, where one PRB includes N resource units on each of the T consecutive symbols, T, N and K are positive integers, N > K is greater than or equal to 1, T is greater than or equal to 1, the T × K resource units in the T consecutive symbols correspond to at least one port group of the reference signal, each port group in the at least one port group includes at least two ports, and reference signals corresponding to ports in the at least one port group are orthogonally multiplexed on the T × K resource units.
402, the receiving end device determines the resource unit occupied by the reference signal from the reference signal resource set.
In other words, there are T consecutive symbols in one PRB, there are T × N resource elements on the T consecutive symbols, and a reference signal resource set is T × K resource elements in the T × N resource elements, where the T × K resource elements are located on the T consecutive symbols, and there are K resource elements on each of the T consecutive symbols belonging to the reference signal resource set. The sending end device determines resource units occupied by the reference signal on the T × K resource units, where ports in at least one port group of the reference signal may be mapped on the T × K resource units, and the at least one port group includes at least two ports. Correspondingly, the receiving end determines the resource units occupied by the reference signal on the T × K resource units.
For example, as shown in fig. 5, one PRB includes 4 consecutive symbols (as shown by horizontal sequence numbers 1-4 in fig. 5), each symbol has 12 resource units (as shown by vertical sequence numbers 1-12 in fig. 5), a reference signal resource set 510 is composed of 4 consecutive resource units on each of the 4 consecutive symbols, i.e. T is equal to 4, N is equal to 12, and K is equal to 4, and the reference signal resource set 510 can be used for mapping a reference signal; the sending-end device determines, in the reference signal resource set 510, that resource units occupied by a reference signal are resource unit 1 and resource unit 2 in symbol 1, and port group 1 and port group 2 used for mapping the reference signal, where port group 1 includes port 1 and port 2, port group 2 includes port 3 and port 4, ports of port group 1 are orthogonally multiplexed on resource unit 1, and ports of port group 2 are orthogonally multiplexed on resource unit 2; correspondingly, the receiving end device determines, in the reference signal resource set 510, that the resource units occupied by the reference signal are resource unit 1 and resource unit 2 in symbol 1.
Optionally, the Reference Signal may include at least one of a cell-specific Reference Signal (CRS), a demodulation Reference Signal (DMRS), a Sounding Reference Signal (SRS), and a channel quality measurement Reference Signal (CSI-RS). The DMRS is taken as an example for illustration, and it should be understood that the method in the embodiment of the present application may be applied to at least one of the above reference signals, and the present application does not limit this.
Optionally, the sending end device and the receiving end device may determine the resource unit occupied by the reference signal according to the configuration.
In an example, the sending end device and the receiving end device may preset information of resource units occupied by the reference signal in the reference signal resource set, for example, the sending end device and the receiving end device may preset that the reference signal preferentially occupies low-band resources or high-band resources in the reference signal resource set.
In an example, the sending end device and the receiving end device may explicitly configure configuration information of resource units occupied by the reference signal in the reference signal resource set, for example, the sending end device may indicate the configuration information of the resource units occupied by the reference signal to the receiving end device, and the receiving end determines the resource units occupied by the reference signal according to the indication of the sending end device.
Optionally, the orthogonally multiplexing the reference signals corresponding to the ports in the at least one port group on the T × K resource units includes: and the reference signals corresponding to part or all of the ports in the at least one port group are orthogonally multiplexed on the T multiplied by K resource units. For example, port group 1 includes port 1, port 2, port 3, and port 4, T is 1, K is 2, port 1 and port 2 are orthogonally multiplexed on resource unit 1 and resource unit 2, and port 3 and port 4 are orthogonally multiplexed on other resource units, so that reference signals corresponding to some ports in port group 1 are orthogonally multiplexed on T × K resource units. For another example, the port group 1 includes a port 1 and a port 2, T is 1, K is 2, and the port 1 and the port 2 are orthogonally multiplexed on the resource unit 1 and the resource unit 2, so that the reference signals corresponding to all the ports in the port group 1 are orthogonally multiplexed on the T × K resource units.
Optionally, the port in the at least one port group is orthogonally multiplexed on the T × K resource units, and includes: and the reference signals corresponding to the ports in the at least one port group are orthogonally multiplexed on the T multiplied by K resource units in at least one mode of cyclic shift, code division multiplexing, frequency division multiplexing and time division multiplexing of sequences.
The cyclic shift of the sequence means that the sequence performs linear phase rotation in the frequency domain, which is equivalent to that the sequence performs cyclic shift in the time domain, and the phase means ejaAnd a is a cyclic shift parameter. Reference signals obtained by different cyclic shifts of the same basic reference signal sequence can be orthogonal to each other. For example, a is set to m π/6, m can be from 0 to 11, and 12 different orthogonal reference signals can be obtained from one basic reference signal sequence. For another example, two cyclic shifts of a sequence may be two different cyclic shifts based on one basic reference signal sequence, to obtain two different orthogonal reference signal sequences, and the two orthogonal reference signal sequences may be used to map different ports. For example, a reference signal corresponding to port 1 occupies resource element 1 and the corresponding phase is ejπ/6(ii) a The reference signal corresponding to port 2 occupies resource unit 1 and the corresponding phase is ejπ/3Then port 1 is orthogonally multiplexed with port 2 on resource unit 1.
In the code division multiplexing, a set of mutually orthogonal sequences is used for distinguishing multipath signals, and the multiplexing of the multipath signals on the same resource is realized. For example, the code sequences {11} and {1-1} are orthogonal to each other, so that the code sequences {11} and {1-1} can correspond to two different ports; for another example, the code sequence { 1111 }, the code sequence { 1-11-1 }, the code sequence { j-1-j 1} and the code sequence {1 j-1-j } may be orthogonal to each other, and the code sequence { 1111 }, the code sequence { 1-11-1 }, the code sequence { j-1-j 1} and the code sequence {1 j-1-j } may correspond to four different ports. It should be understood that the 4-long OCC code sequence described above is merely an example, and alternatively, the 4-long OCC code sequence may also be a code sequence { 1111 }, a code sequence { 1-11-1 }, a code sequence { 11-1-1 } and a code sequence { 1-1-11 }.
Optionally, the orthogonal code in the code division multiplexing may be a time domain orthogonal spreading code and/or a frequency domain orthogonal spreading code.
In one example, the length of the frequency domain OCC code is 2, the frequency domain OCC code corresponding to port 1 is {11}, and the frequency domain OCC code corresponding to port 2 is {1-1}, then port 1 and port 2 may be orthogonally multiplexed on the same resources.
In one example, the length of the time-domain OCC code is 4, the time-domain OCC code corresponding to port 1 is { 1111 }, the time-domain OCC code corresponding to port 2 is { 1111 }, the time-domain OCC code corresponding to port 3 is { j-1-j 1}, and the time-domain OCC code corresponding to port 4 is {1 j-1-j }, then ports 1 to 4 may be orthogonally multiplexed on the same resource. It should be understood that the 4-long OCC code sequence described above is merely an example, and alternatively, the 4-long OCC code sequence may also be a code sequence { 1111 }, a code sequence { 1-11-1 }, a code sequence { 11-1-1 } and a code sequence { 1-1-11 }.
In one example, the length of the frequency-domain OCC code is 2, the length of the time-domain OCC code is 2, the time-domain OCC code corresponding to port 1 is {11}, the frequency-domain OCC code corresponding to port 1 is {11}, the time-domain OCC code corresponding to port 2 is {1-1}, the frequency-domain OCC code corresponding to port 2 is {1-1}, the time-domain OCC code corresponding to port 3 is {11}, the frequency-domain OCC code corresponding to port 3 is { -1-1 }, the time-domain OCC code corresponding to port 4 is {1-1}, and the frequency-domain OCC code corresponding to port 4 is { -11 }, then ports 1 to 4 can be orthogonally multiplexed on the same resource.
The frequency domain resources for the transmission channel may be divided into subsets of a plurality of frequency resources that do not overlap with each other, and a plurality of signals are transmitted on the subsets of the plurality of frequency resources. For example, one PRB includes 12 subcarriers within one symbol, wherein the 12 subcarriers may be divided into a plurality of subcarrier groups that do not overlap with each other for transmitting a plurality of signals.
Where time division multiplexing may be dividing the time axis into several unit times (e.g., slots), different unit times may be used to transmit different signals. For example, one PRB may be divided into a plurality of symbols, which may be used to transmit a plurality of signals.
In one example, N mutually orthogonal reference signal sequences may be obtained by cyclically shifting a reference signal by N times over M resource elements, and then the reference signal may correspond to N ports over the M resource elements, where M and N are natural numbers.
In one example, the reference signal may obtain N mutually orthogonal reference signals through N mutually orthogonal frequency domain OCC codes on N resource units of one symbol, and then the reference signal may correspond to N ports on the N resource units, where N is a natural number.
In one example, the reference signal may obtain N mutually orthogonal reference signals through N mutually orthogonal time domain OCC codes on N resource units of N symbols, and then the reference signal may correspond to N ports on the N resource units.
In one example, the reference signal may correspond to at least two ports in a frequency division multiplexing manner on N resource units of one symbol, where N is a natural number greater than or equal to 2.
In one example, the reference signal may correspond to at least two ports in a time division multiplexing manner on N resource units of N symbols, where N is a natural number greater than or equal to 2.
Optionally, the positions of the K consecutive resource units are the same as the positions of the K consecutive resource units occupied by the sending end device on one symbol of data transmission in one PRB. In other words, the positions of K consecutive resource elements on each of the T consecutive symbols in the reference signal resource set correspond to the positions of K consecutive resource elements occupied per symbol at the time of data transmission. That is, the positions of K consecutive resource units on each symbol in the T × K resource units may be determined according to the positions of K consecutive resource units occupied when data is transmitted. For example, the resource units occupied by the sending end device when sending data on one symbol are 4 consecutive resource units (resource unit 1 to resource unit 4), then the reference signal resource set includes T × 4 resource units, the T × 4 resource units are composed of 4 consecutive resource units (resource unit 1 to resource unit 4) on each symbol in the T consecutive symbols of one PRB, and the positions of the resource unit 1 to resource unit 4 are the same as the positions of the resource unit 1 to resource unit 4 in each symbol when sending data.
Optionally, there are at least two different K values, and orthogonal multiplexing modes of reference signals corresponding to ports in the at least one port group on the T × K resource units are different. In other words, the sending end device may determine an orthogonal multiplexing mode of the reference signal on the reference signal resource set according to the K value corresponding to the reference signal resource set. Then, K may be a configuration parameter corresponding to the set of reference signal resources.
For example, when K is 3, the sending end device may determine that a port in the port group 1 corresponding to the reference signal uses orthogonal multiplexing of cyclic shift and frequency division multiplexing of a sequence on T × 3 resource units, and when K is 4, the sending end device may determine that a port in the port group 1 corresponding to the reference signal uses orthogonal multiplexing of frequency domain OCC code and frequency division multiplexing on T × 4 resource units.
Optionally, when T is equal to 1 and K is equal to 3, 4, or 6, the reference signals corresponding to the ports in the at least one port group are orthogonal to each other through cyclic shift of sequences and frequency division multiplexing on the T × K resource units.
Optionally, the frequency division multiplexing is frequency division multiplexing with comb teeth of 2, or frequency division multiplexing with comb teeth of 3. Wherein the granularity of the comb may be one or more resource units. The "comb" may also be expressed as "orthogonal factor" or the like similar to the "comb" concept, for example, frequency division multiplexing is frequency division multiplexing with an orthogonal factor of 2, or frequency division multiplexing with an orthogonal factor of 3. It is to be understood that the present application is not limited to the analogous expressions relating to "comb teeth".
For example, the granularity of a comb is 1 resource unit, the comb is 2, one symbol includes 12 resource units, the 12 resource units are respectively resource units 1 to 12, and orthogonal multiplexing is performed in a frequency division multiplexing manner with the comb being 2, so that the resource units 1, 3, 5, 7, 9, and 11 on the symbol correspond to 1 comb, and the resource units 2, 4, 6, 8, 10, and 12 on the symbol correspond to 2 combs; the reference signals mapped on the resource elements corresponding to the 1 comb and the reference signals mapped on the resource elements corresponding to the 2 comb are orthogonal to each other, and thus the combination of the resource elements 1, 3, 5, 7, 9, 11 and the combination of the resource elements 2, 4, 6, 8, 10, 12 are orthogonal to each other.
For another example, the granularity of the comb is 2 resource units, the comb is 2, one symbol includes 12 resource units, the 12 resource units are respectively resource units 1 to 12, and orthogonal multiplexing is performed in a frequency division multiplexing manner with the comb being 2, so that the resource units 1, 2, 5, 6, 9, and 10 on the symbol correspond to 1 comb, and the resource units 3, 4, 7, 8, 11, and 12 on the symbol correspond to 2 combs; the reference signals mapped on the resource elements corresponding to the 1 comb and the reference signals mapped on the resource elements corresponding to the 2 comb are orthogonal to each other, and thus the combination of the resource elements 1, 2, 5, 6, 9, 10 and the combination of the resource elements 3, 4, 7, 8, 11, 12 are orthogonal to each other.
For another example, the granularity of the comb is 1 resource unit, the comb is 3, one symbol includes 12 resource units, the 12 resource units are respectively resource units 1 to 12, and orthogonal multiplexing is performed in a frequency division multiplexing manner with the comb being 3, so that resource units 1, 4, 7, and 10 on the symbol correspond to 1 comb, resource units 2, 5, 8, and 11 on the symbol correspond to 2 combs, and resource units 3, 6, 9, and 12 on the symbol correspond to 3 combs; the reference signal mapped to the resource element corresponding to the 1 comb is orthogonal to the reference signal mapped to the resource element corresponding to the 2 comb, the reference signal mapped to the resource element corresponding to the 2 comb is orthogonal to the reference signal mapped to the resource element corresponding to the 3 comb, and the reference signal mapped to the resource element corresponding to the 1 comb is orthogonal to the reference signal mapped to the resource element corresponding to the 3 comb, so that the combination of the resource elements 1, 4, 7, and 10 is orthogonal to the combination of the resource elements 2, 5, 8, and 11 and the combination of the resource elements 3, 6, 9, and 12, and the combination of the resource elements 2, 5, 8, and 11 is orthogonal to the combination of the resource elements 3, 6, 9, and 12.
When T is equal to 1 and K is equal to 3, the reference signal resource set includes 3 resource units, where the 3 resource units are 3 consecutive resource units in 1 symbol of one PRB, the reference signal is orthogonally multiplexed on the 3 resource units by a cyclic shift of a sequence and a frequency division multiplexing manner, and ports in at least one port group corresponding to the reference signal are supported to be orthogonally multiplexed on the resource units corresponding to the reference signal resource set.
In one example, determining that the reference signal is orthogonally multiplexed on 3 resource units by means of two cyclic shifts of the sequence and frequency division multiplexing with comb teeth of 2 on the set of reference signal resources can achieve the support of the maximum number of 4 orthogonal ports. For example, as shown in a reference signal resource set 610 shown in fig. 6, one PRB includes 1 symbol, where there are 12 resource units (as shown by vertical sequence numbers 1-12 in fig. 6), the reference signal resource set 610 includes 3 consecutive resource units on 1 symbol, which are resource unit 1, resource unit 2, and resource unit 3, the reference signal resource set 610 may correspond to port group 1 and port group 2 of a reference signal, where, by a frequency division multiplexing mode with comb teeth of 2 and comb teeth granularity of 1 resource unit, resource unit 1 is orthogonal to resource unit 2, and resource unit 2 is orthogonal to resource unit 3; two mutually orthogonal reference signals are obtained by performing two cyclic shifts of the sequence on each resource unit, that is, performing two different cyclic shifts based on one basic reference signal sequence, so that the resource unit 1 may correspond to the port 1 and the port 2 in the port group 1, the resource unit 2 may correspond to the port 3 and the port 4 in the port group 2, and the resource unit 3 may correspond to the port 1 and the port 2 in the port group 1. Accordingly, according to the above manner, in the next PRB adjacent to the PRB, resource unit 1 may correspond to port 3 and port 4 in port group 2, resource unit 2 may correspond to port 1 and port 2 in port group 1, and resource unit 3 may correspond to port 3 and port 4 in port group 2, such as reference signal resource set 620 shown in fig. 6.
In one example, it is determined within the reference signal resource set that the reference signal is orthogonally multiplexed on the 3 resource units by means of two cyclic shifts of the sequence and frequency division multiplexing with 3 comb teeth, and the support of the maximum number of 6 orthogonal ports can be realized. For example, as a reference signal resource set 630 shown in fig. 6, one PRB includes 1 symbol, and 12 resource units are located on the symbol (as shown by vertical serial numbers 1-12 in fig. 6), where the reference signal resource set 630 includes 3 consecutive resource units on 1 symbol, which are resource unit 1, resource unit 2, and resource unit 3, and the reference signal resource set 630 may correspond to a port group 1, a port group 2, and a port group 3 of a reference signal, where, by a frequency division multiplexing mode with 3 comb teeth and 1 comb tooth granularity, the resource unit 1 is orthogonal to the resource unit 2, the resource unit 2 is orthogonal to the resource unit 3, and the resource unit 1 is orthogonal to the resource unit 3; two mutually orthogonal reference signals are obtained by performing two cyclic shifts of the sequence on each resource unit, that is, performing two different cyclic shifts based on one basic reference signal sequence, where the resource unit 1 may correspond to the port 1 or the port 2 in the port group 1, the resource unit 2 may correspond to the port 3 or the port 4 in the port group 2, and the resource unit 3 may correspond to the port 5 or the port 6 in the port group 3.
When T is equal to 1 and K is equal to 4, the reference signal resource set includes 4 resource elements, where the 4 resource elements are 4 consecutive resource elements in 1 symbol of one PRB, and the reference signal is orthogonally multiplexed on the 4 resource elements by means of cyclic shift of a sequence and frequency division multiplexing, so as to support the orthogonality of ports in at least one port group corresponding to the reference signal on the 4 resource elements.
In one example, determining that the reference signal is orthogonally multiplexed on 4 resource units by means of two cyclic shifts of the sequence and frequency division multiplexing with comb teeth of 2 on the set of reference signal resources can realize the support of the maximum number of 4 orthogonal ports. For example, as shown in the reference signal resource set 640 shown in fig. 6, one PRB includes 1 symbol, and 12 resource units are located on the symbol (as shown by vertical sequence numbers 1-12 in fig. 6), and the reference signal resource set 640 includes 4 consecutive resource units on 1 symbol, which are resource unit 1, resource unit 2, resource unit 3, and resource unit 4, and the reference signal resource set 640 may correspond to port group 1 and port group 2 of a reference signal, where, by a frequency division multiplexing manner in which comb is 2 and comb granularity is 1 resource unit, a combination of resource unit 1 and resource unit 3 is orthogonal to a combination of resource unit 2 and resource unit 4; two mutually orthogonal reference signals are obtained by performing two cyclic shifts of a sequence on each resource unit, that is, performing two different cyclic shifts based on one basic reference signal sequence, where a resource unit 1 may correspond to a port 1 and a port 2 in a port group 1, a resource unit 2 may correspond to a port 3 and a port 4 in a port group 2, a resource unit 3 may correspond to a port 1 and a port 2 in a port group 1, and a resource unit 4 may correspond to a port 3 and a port 4 in a port group 2.
In one example, determining that the reference signal is orthogonally multiplexed on the 4 resource elements by two cyclic shifts of the sequence and frequency division multiplexing with 3 comb fingers on the set of reference signal resources can achieve the support of the maximum number of 6 orthogonal ports. For example, as shown in a reference signal resource set 650 shown in fig. 6, one PRB includes 1 symbol, and 12 resource units are located on the symbol (as shown by vertical serial numbers 1-12 in fig. 6), where the reference signal resource set 650 includes 4 consecutive resource units on 1 symbol, which are resource unit 1, resource unit 2, resource unit 3, and resource unit 4, and the reference signal resource set 650 may correspond to port group 1, port group 2, and port group 3 of a reference signal, where, by a frequency division multiplexing mode in which comb is 3 and comb granularity is 1 resource unit, then resource unit 1 is orthogonal to resource unit 2 and resource unit 3, resource unit 2 is orthogonal to resource unit 3 and resource unit 4, and resource unit 3 is orthogonal to resource unit 4; two mutually orthogonal reference signals are obtained by performing two cyclic shifts of a sequence on each resource unit, that is, performing two different cyclic shifts based on one basic reference signal sequence, where a resource unit 1 may correspond to a port 1 and a port 2 in a port group 1, a resource unit 2 may correspond to a port 3 and a port 4 in a port group 2, a resource unit 3 may correspond to a port 5 and a port 6 in a port group 3, and a resource unit 4 may correspond to a port 1 and a port 2 in a port group 1.
In one example, determining that the reference signal is orthogonally multiplexed on the 4 resource elements by two cyclic shifts of the sequence and frequency division multiplexing with 4 comb fingers on the set of reference signal resources can achieve the support of the maximum number of 8 orthogonal ports. For example, one PRB includes 1 symbol, there are 12 resource units (resource unit 1 to resource unit 12) on the symbol, the reference signal resource set includes 4 consecutive resource units on 1 symbol, which are resource unit 1, resource unit 2, resource unit 3, and resource unit 4, the reference signal resource set may correspond to port group 1, port group 2, port group 3, and port group 7 of a reference signal, where, by a frequency division multiplexing mode in which comb is 4 and comb granularity is 1 resource unit, resource unit 1, resource unit 2, resource unit 3, and resource unit 4 are orthogonal pairwise; two mutually orthogonal reference signals are obtained by performing two cyclic shifts of a sequence on each resource unit, that is, performing two different cyclic shifts based on one basic reference signal sequence, where a resource unit 1 may correspond to a port 1 and a port 2 in a port group 1, a resource unit 2 may correspond to a port 3 and a port 4 in a port group 2, a resource unit 3 may correspond to a port 5 and a port 6 in a port group 3, and a resource unit 4 may correspond to a port 7 and a port 8 in a port group 7.
When T is equal to 1 and K is equal to 6, the reference signal resource set includes 6 resource units, where the 6 resource units are 6 consecutive resource units in 1 symbol of one PRB, and the reference signal is orthogonally multiplexed on the 6 resource units by means of cyclic shift of a sequence and frequency division multiplexing, which supports orthogonal multiplexing of ports in at least one port group corresponding to the reference signal on the 6 resource units.
In one example, determining that the reference signal is orthogonally multiplexed on 6 resource units by means of two cyclic shifts of the sequence and frequency division multiplexing with comb teeth of 2 on the set of reference signal resources can achieve the support of the maximum number of 4 orthogonal ports. For example, as a reference signal resource set 660 shown in fig. 6, one PRB includes 1 symbol, and 12 resource units are located on the symbol (as shown by vertical serial numbers 1-12 in fig. 6), the reference signal resource set 660 includes 6 consecutive resource units on 1 symbol, which are resource unit 1, resource unit 2, resource unit 3, resource unit 4, resource unit 5, and resource unit 6, the reference signal resource set 660 may correspond to port group 1 and port group 2 of a reference signal, where, by a frequency division multiplexing mode with 2 comb teeth and 1 comb tooth granularity, a combination of resource unit 1, resource unit 3, and resource unit 5 is orthogonal to a combination of resource unit 2, resource unit 4, and resource unit 6; two mutually orthogonal reference signals are obtained by performing two cyclic shifts of a sequence on each resource unit, that is, performing two different cyclic shifts based on one basic reference signal sequence, where a resource unit 1 may correspond to a port 1 and a port 2 in a port group 1, a resource unit 2 may correspond to a port 3 and a port 4 in a port group 2, a resource unit 3 may correspond to a port 1 and a port 2 in a port group 1, a resource unit 4 may correspond to a port 3 and a port 4 in a port group 2, a resource unit 5 may correspond to a port 1 and a port 2 in a port group 1, and a resource unit 6 may correspond to a port 3 and a port 4 in a port group 2.
In one example, determining that the reference signal is orthogonally multiplexed on the 6 resource units by two cyclic shifts of the sequence and frequency division multiplexing with 3 comb fingers on the set of reference signal resources can achieve the support of the maximum number of 6 orthogonal ports. For example, as shown in the reference signal resource set 670 shown in fig. 6, one PRB includes 1 symbol, which has 12 resource units (as shown by the vertical sequence numbers 1-12 in fig. 6), and the reference signal resource set 670 includes 6 consecutive resource units on 1 symbol, which are resource unit 1, resource unit 2, resource unit 3, resource unit 4, resource unit 5, and resource unit 6, and the reference signal resource set 670 may correspond to port group 1, port group 2, and port group 3 of the reference signal, where, by using a frequency division multiplexing mode with 3 comb teeth and 1 comb tooth granularity, the combination of resource unit 1 and resource unit 4 is orthogonal to the combination of resource unit 2 and resource unit 5 and the combination of resource unit 3 and resource unit 6, and the combination of resource unit 2 and resource unit 5 is orthogonal to the combination of resource unit 3 and resource unit 6, The combination of resource units 6 is orthogonal; two mutually orthogonal reference signals are obtained by performing two cyclic shifts of a sequence on each resource unit, that is, performing two different cyclic shifts based on one basic reference signal sequence, where a resource unit 1 may correspond to a port 1 and a port 2 in a port group 1, a resource unit 2 may correspond to a port 3 and a port 4 in a port group 2, a resource unit 3 may correspond to a port 5 and a port 6 in a port group 3, a resource unit 4 may correspond to a port 1 and a port 2 in a port group 1, a resource unit 5 may correspond to a port 3 and a port 4 in a port group 2, and a resource unit 6 may correspond to a port 5 and a port 6 in a port group 3.
In one example, determining that the reference signals are orthogonally multiplexed on the 6 resource units by means of two cyclic shifts of the sequence and frequency division multiplexing with 4 comb teeth on the reference signal set can realize the support of the maximum number of 8 orthogonal ports. For example, one PRB includes 1 symbol, there are 12 resource units (resource unit 1 to resource unit 12) on the symbol, the reference signal resource set includes 6 consecutive resource units on 1 symbol, which are resource unit 1, resource unit 2, resource unit 3, resource unit 4, resource unit 5, and resource unit 6, the reference signal resource set may correspond to port group 1, port group 2, port group 3, and port group 7 of the reference signal, where, by a frequency division multiplexing mode with 4 comb teeth, the combination of resource unit 1 and resource unit 5 is orthogonal to the combination of resource unit 2 and resource unit 6 and to resource unit 3 and resource unit 4, the combination of resource unit 2 and resource unit 6 is orthogonal to resource unit 3 and resource unit 4, and resource unit 3 is orthogonal to resource unit 4; two mutually orthogonal reference signals are obtained by performing two cyclic shifts of a sequence on each resource unit, that is, performing two different cyclic shifts based on one basic reference signal sequence, where a resource unit 1 may correspond to a port 1 and a port 2 in a port group 1, a resource unit 2 may correspond to a port 3 and a port 4 in a port group 2, a resource unit 3 may correspond to a port 5 and a port 6 in a port group 3, a resource unit 4 may correspond to a port 7 and a port 8 in a port group 7, a resource unit 5 may correspond to a port 1 and a port 2 in a port group 1, and a resource unit 6 may correspond to a port 3 and a port 4 in a port group 2.
In one example, determining that the reference signals are orthogonally multiplexed on the 6 resource units by two cyclic shifts of the sequence and frequency division multiplexing with 6 comb fingers on the reference signal set can achieve the support of the maximum number of 12 orthogonal ports. For example, one PRB includes 1 symbol, there are 12 resource units (resource unit 1 to resource unit 12) on the symbol, the reference signal resource set includes 6 consecutive resource units on 1 symbol, which are resource unit 1, resource unit 2, resource unit 3, resource unit 4, resource unit 5, and resource unit 6, the reference signal resource set may correspond to port group 1, port group 2, port group 3, port group 7, port group 8, and port group 9 of a reference signal, where, by a frequency division multiplexing mode where comb is 6 and comb granularity is 1 resource unit, resource unit 1, resource unit 2, resource unit 3, resource unit 4, resource unit 5, and resource unit 6 are orthogonal pairwise; two mutually orthogonal reference signals are obtained by performing two cyclic shifts of a sequence on each resource unit, that is, performing two different cyclic shifts based on one basic reference signal sequence, where a resource unit 1 may correspond to a port 1 and a port 2 in a port group 1, a resource unit 2 may correspond to a port 3 and a port 4 in a port group 2, a resource unit 3 may correspond to a port 5 and a port 6 in a port group 3, a resource unit 4 may correspond to a port 7 and a port 8 in a port group 7, a resource unit 5 may correspond to a port 9 and a port 10 in a port group 8, and a resource unit 6 may correspond to a port 11 and a port 12 in a port group 9.
Optionally, when T is equal to 1 and K is equal to 4 or 6, reference signals corresponding to ports in the at least one port group are orthogonal to each other through frequency domain orthogonal spreading codes and frequency division multiplexing on the T × K resource units.
Optionally, the frequency division multiplexing is frequency division multiplexing with comb teeth of 2, or frequency division multiplexing with comb teeth of 3. Wherein the granularity of the comb may be one or more resource units. It should be understood that the contents related to the frequency division multiplexing comb have been described in detail above and will not be described herein.
Optionally, the frequency domain orthogonal spreading code is an orthogonal spreading code with a length of 2. In one example, the length of a frequency domain OCC code is 2, and the corresponding code sequence is 11, 1-1.
When T is equal to 1 and K is equal to 4, the reference signal resource set includes 4 resource units, where the 4 resource units are 4 consecutive resource units in 1 symbol of one PRB, and the reference signal is orthogonally multiplexed on the 4 resource units by a frequency domain orthogonal spreading code and a frequency division multiplexing manner, so as to support orthogonal multiplexing of ports in at least one port group corresponding to the reference signal on the 4 resource units.
In one example, it is determined on the reference signal resource set that the reference signal is orthogonally multiplexed on 4 resource units by means of frequency domain orthogonal spreading codes and frequency division multiplexing with comb teeth of 2, and the support of the maximum number of 4 orthogonal ports can be realized. For example, as shown in the reference signal resource set 710 shown in fig. 7, one PRB includes 1 symbol, and there are 12 resource units on the symbol (as shown by the vertical sequence numbers 1-12 in fig. 7), the reference signal resource set 710 includes 4 consecutive resource units on 1 symbol, which are resource unit 1, resource unit 2, resource unit 3, and resource unit 4, and the reference signal resource set 710 may correspond to port group 1 and port group 2 of the reference signal; wherein, through the frequency division multiplexing mode with 2 comb teeth and 2 comb tooth granularities, the combination of the resource unit 1 and the resource unit 2 is orthogonal to the combination of the resource unit 3 and the resource unit 4; the length of the frequency domain OCC code is 2, the reference signals in the resource units 1 and 2 may respectively correspond to the code sequences {11} and {1-1}, and the reference signals in the resource units 3 and 4 may respectively correspond to the code sequences {11} and {1-1}, so that the resource units 1 and 2 may correspond to the ports 1 and 2 in the port group 1, and the resource units 3 and 4 may correspond to the ports 3 and 4 in the port group 2.
When T is equal to 1 and K is equal to 6, the reference signal resource set includes 6 resource units, where the 6 resource units are 6 consecutive resource units in 1 symbol of one PRB, and the reference signals are orthogonally multiplexed on the 6 resource units by means of frequency domain orthogonal spreading codes and frequency division multiplexing, so as to support orthogonal multiplexing of ports in at least one port group corresponding to the reference signals on the 6 resource units.
In one example, it is determined on the reference signal resource set that the reference signal is orthogonally multiplexed on 6 resource units by means of frequency domain orthogonal spreading codes and frequency division multiplexing with comb teeth of 2, and the support of the maximum number of 4 orthogonal ports can be realized. For example, as shown in the reference signal resource set 720 shown in fig. 7, one PRB includes 1 symbol, and there are 12 resource units on the symbol (as shown by the vertical sequence numbers 1-12 in fig. 7), the reference signal resource set 720 includes 6 consecutive resource units on 1 symbol, which are resource unit 1, resource unit 2, resource unit 3, resource unit 4, resource unit 5, and resource unit 6, and the reference signal resource set 720 may correspond to port group 1 and port group 2 of the reference signal; wherein, by the frequency division multiplexing mode with 2 comb teeth and 2 comb teeth granularity, the combination of the resource unit 1 and the resource unit 2 is orthogonal to the combination of the resource unit 3 and the resource unit 4, and the combination of the resource unit 3 and the resource unit 4 is orthogonal to the combination of the resource unit 5 and the resource unit 6; the length of the frequency domain OCC code is 2, the reference signals in the resource units 1 and 2 may respectively correspond to the code sequences {11} and {1-1}, the reference signals in the resource units 3 and 4 may respectively correspond to the code sequences {11} and {1-1}, the reference signals in the resource units 5 and 6 may respectively correspond to the code sequences {11} and {1-1}, so that the resource units 1 and 2 may correspond to the ports 1 and 2 in the port group 1, the resource units 3 and 4 may correspond to the ports 3 and 4 in the port group 2, and the resource units 5 and 6 may correspond to the ports 1 and 2 in the port group 1.
In one example, it is determined on the reference signal resource set that the reference signal is orthogonally multiplexed on 6 resource units by means of frequency domain orthogonal spreading codes and frequency division multiplexing with 3 comb teeth, and the support of the maximum number of 6 orthogonal ports can be realized. For example, as shown in the reference signal resource set 730 shown in fig. 7, one PRB includes 1 symbol, and there are 12 resource units on the symbol (as shown by the vertical sequence numbers 1-12 in fig. 7), the reference signal resource set 730 includes 6 consecutive resource units on 1 symbol, which are resource unit 1, resource unit 2, resource unit 3, resource unit 4, resource unit 5, and resource unit 6, and the reference signal resource set 730 may correspond to port group 1, port group 2, and port group 3 of the reference signal; by the frequency division multiplexing mode with 3 comb teeth and 2 comb tooth granularity, the combination of the resource unit 1 and the resource unit 2 is orthogonal to the combination of the resource unit 3 and the resource unit 4 and the combination of the resource unit 5 and the resource unit 6, and the combination of the resource unit 3 and the resource unit 4 is orthogonal to the combination of the resource unit 5 and the resource unit 6; the length of the frequency domain OCC code is 2, the reference signals in the resource units 1 and 2 may respectively correspond to the code sequences {11} and {1-1}, the reference signals in the resource units 3 and 4 may respectively correspond to the code sequences {11} and {1-1}, the reference signals in the resource units 5 and 6 may respectively correspond to the code sequences {11} and {1-1}, so that the resource units 1 and 2 may correspond to the ports 1 and 2 in the port group 1, the resource units 3 and 4 may correspond to the ports 3 and 4 in the port group 2, and the resource units 5 and 6 may correspond to the ports 5 and 6 in the port group 3.
Optionally, when T is equal to 2 or 4 and K is equal to 3, 4 or 6, reference signals corresponding to ports in the at least one port group are orthogonal to each other through cyclic shift of sequences, frequency division multiplexing, and time domain orthogonal spreading codes on the T × K resource units; or, through time domain orthogonal spread spectrum code and frequency division multiplexing orthogonality; or, orthogonal by frequency domain orthogonal spread spectrum code and time division multiplexing; or orthogonal by frequency domain orthogonal spreading codes, frequency division multiplexing and time division multiplexing.
Optionally, the frequency division multiplexing is frequency division multiplexing with comb teeth of 2, or frequency division multiplexing with comb teeth of 3. Wherein the granularity of the comb may be one or more resource units. It should be understood that the contents related to the frequency division multiplexing comb have been described in detail above and will not be described herein.
Optionally, the frequency domain orthogonal spreading code is an orthogonal spreading code with a length of 2. In one example, the length of a frequency domain OCC code is 2, and the corresponding code sequence is 11, 1-1. In one example, the length of the frequency domain OCC code is 4, and the corresponding code sequences are 1111, 1-11-1, j-1-j 1, and 1 j-1-j. It should be understood that the OCC code sequence may be in other sequence forms, for example, the 4-long OCC code sequence may be the code sequence { 1111 }, the code sequence { 1-11-1 }, the code sequence { 11-1-1 } and the code sequence { 1-1-11 }, but not limited thereto.
Optionally, the time domain orthogonal spreading code is an orthogonal spreading code with a length of 2. In one example, the length of the time-domain OCC code is 2, and the corresponding code sequence is 11 and 1-1. In one example, the time-domain OCC code is 4 in length, and the corresponding code sequences are 1111, 1-11-1, j-1-j 1, and 1 j-1-j. It should be understood that the OCC code sequence may be in other sequence forms, for example, the 4-long OCC code sequence may be the code sequence { 1111 }, the code sequence { 1-11-1 }, the code sequence { 11-1-1 } and the code sequence { 1-1-11 }, but not limited thereto.
Under the condition that T is equal to 2 and K is equal to 3, the reference signal resource set includes 6 resource units, where the 6 resource units are 3 consecutive resource units on each of 2 symbols of one PRB, and the reference signal is orthogonally multiplexed on the 6 resource units in a manner of cyclic shift of a sequence, frequency division multiplexing, and time domain orthogonal spreading code, so as to support orthogonal multiplexing of ports in at least one port group corresponding to the reference signal on the 6 resource units.
In one example, determining that the reference signal is orthogonally multiplexed on 6 resource units by means of two cyclic shifts of the sequence and a frequency division multiplexing with comb teeth of 2 and a time domain orthogonal spreading code on the reference signal resource set can realize the support of the maximum number of 8 orthogonal ports. For example, as a reference signal resource set 810 shown in fig. 8, one PRB includes 2 symbols, each of the 2 symbols has 12 resource units, 3 consecutive resource units on the symbol 1 are resource unit 1, resource unit 2, and resource unit 3, and 3 consecutive resource units on the symbol 2 are resource unit 4, resource unit 5, and resource unit 6, and the reference signal resource set 810 may correspond to a port group 4 and a port group 5 of a reference signal, where a combination of resource unit 1, resource unit 3, resource unit 4, and resource unit 6 is orthogonal to a combination of resource unit 2 and resource unit 5 in a frequency division multiplexing manner with comb teeth of 2 and comb teeth granularity of 1 resource unit; the length of the time-domain OCC code is 2, the reference signals in the resource units 1 and 4 may respectively correspond to the code sequences {11} and {1-1}, the reference signals in the resource units 2 and 5 may respectively correspond to the code sequences {11} and {1-1}, the reference signals in the resource units 3 and 6 may respectively correspond to the code sequences {11} and {1-1}, and two mutually orthogonal reference signals are obtained by performing two cyclic shifts of the sequences on each resource unit, i.e., performing two different cyclic shifts based on one basic reference signal sequence, so that the resource units 1 and 4 may correspond to the ports 1, 2, 3, and 4 in the port group 4, and the resource units 2 and 5 may correspond to the ports 5 in the port group 5, Port 6, port 7, port 8, resource unit 3, resource unit 6 may correspond to port 1, port 2, port 3, port 4 within port group 4.
In one example, determining that the reference signal is orthogonally multiplexed on 6 resource units by means of two cyclic shifts of the sequence and a frequency division multiplexing with 3 comb teeth and a time domain orthogonal spreading code on the set of reference signal resources can realize the support of the maximum number of 12 orthogonal ports. For example, as shown in fig. 8 for reference signal resource set 820, one PRB includes 2 symbols, the 2 symbols have 12 resource units respectively, the 3 continuous resource units on the symbol 1 are resource unit 1, resource unit 2 and resource unit 3, the 3 consecutive resource units on symbol 2 are resource unit 4, resource unit 5, resource unit 6, the set of reference signal resources 820 may correspond to port group 4, port group 5, port group 6 of reference signals, by the frequency division multiplexing mode with 3 comb teeth and 1 comb tooth granularity, the combination of the resource unit 1 and the resource unit 4 is orthogonal to the combination of the resource unit 2 and the resource unit 5 and the combination of the resource unit 3 and the resource unit 6, and the combination of the resource unit 2 and the resource unit 5 is orthogonal to the combination of the resource unit 3 and the resource unit 6; the length of the time-domain OCC code is 2, the reference signals in the resource units 1 and 4 may respectively correspond to the code sequences {11} and {1-1}, the reference signals in the resource units 2 and 5 may respectively correspond to the code sequences {11} and {1-1}, the reference signals in the resource units 3 and 6 may respectively correspond to the code sequences {11} and {1-1}, and two mutually orthogonal reference signals are obtained by performing two cyclic shifts of the sequences on each resource unit, i.e., performing two different cyclic shifts based on one basic reference signal sequence, so that the resource units 1 and 4 may correspond to the ports 1, 2, 3, and 4 in the port group 4, and the resource units 2 and 5 may correspond to the ports 5 in the port group 5, Ports 6, 7, 8, resource units 3, 6 may correspond to ports 9, 10, 11, 12 within the port group 6.
Under the condition that T is equal to 2 and K is equal to 3, the reference signal resource set includes 6 resource units, where the 6 resource units are 3 consecutive resource units on each of 2 symbols of one PRB, and a reference signal is orthogonally multiplexed on the 6 resource units by a time-domain orthogonal spreading code and a frequency division multiplexing manner, so as to support orthogonal multiplexing of ports in at least one port group corresponding to the reference signal on the 6 resource units.
In one example, it is determined on the reference signal resource set that the reference signal is orthogonally multiplexed on 6 resource units by means of a time domain orthogonal spreading code and frequency division multiplexing with comb teeth of 2, and the support of the maximum number of 4 orthogonal ports can be realized. For example, as shown in the reference signal resource set 830 shown in fig. 8, one PRB includes 2 symbols, each of the 2 symbols has 12 resource units, 3 consecutive resource units on the symbol 1 are resource unit 1, resource unit 2, and resource unit 3, and 3 consecutive resource units on the symbol 2 are resource unit 4, resource unit 5, and resource unit 6, and the reference signal resource set 830 may correspond to port group 1 and port group 2 of the reference signal; wherein, through the frequency division multiplexing mode with 2 comb teeth and 1 comb tooth granularity, the combination of the resource unit 1, the resource unit 3, the resource unit 4 and the resource unit 6 is orthogonal to the combination of the resource unit 2 and the resource unit 5; the length of the time-domain OCC code is 2, the reference signals in the resource units 1 and 4 may respectively correspond to the code sequences {11} and {1-1}, the reference signals in the resource units 2 and 5 may respectively correspond to the code sequences {11} and {1-1}, and the reference signals in the resource units 3 and 6 may respectively correspond to the code sequences {11} and {1-1}, so that the resource units 1 and 4 may correspond to the ports 1 and 2 in the port group 1, the resource units 2 and 5 may correspond to the ports 3 and 4 in the port group 2, and the resource units 3 and 6 may correspond to the ports 1 and 2 in the port group 1.
In one example, it is determined on the reference signal resource set that the reference signal is orthogonally multiplexed on 6 resource units by means of time domain orthogonal spreading codes and frequency division multiplexing with 3 comb teeth, and the support of the maximum number of 6 orthogonal ports can be realized. For example, as shown in the reference signal resource set 840 shown in fig. 8, one PRB includes 2 symbols, each of the 2 symbols has 12 resource units, 3 consecutive resource units on the symbol 1 are resource unit 1, resource unit 2, and resource unit 3, and 3 consecutive resource units on the symbol 2 are resource unit 4, resource unit 5, and resource unit 6, and the reference signal resource set 840 may correspond to port group 1, port group 2, and port group 3 of the reference signal; by a frequency division multiplexing mode with 3 comb teeth and 1 comb tooth granularity, the combination of the resource unit 1 and the resource unit 4, the combination of the resource unit 2 and the resource unit 5, and the combination of the resource unit 3 and the resource unit 6 are orthogonal pairwise; the length of the time-domain OCC code is 2, the reference signals in the resource units 1 and 4 may respectively correspond to the code sequences {11} and {1-1}, the reference signals in the resource units 2 and 5 may respectively correspond to the code sequences {11} and {1-1}, the reference signals in the resource units 3 and 6 may respectively correspond to the code sequences {11} and {1-1}, so that the resource units 1 and 4 may correspond to the ports 1 and 2 in the port group 1, the resource units 2 and 5 may correspond to the ports 3 and 4 in the port group 2, and the resource units 3 and 6 may correspond to the ports 5 and 6 in the port group 3.
Under the condition that T is equal to 2 and K is equal to 3, the reference signal resource set includes 6 resource units, where the 6 resource units are 3 consecutive resource units on each of 2 symbols of one PRB, a reference signal is orthogonally multiplexed on the 6 resource units by a frequency domain orthogonal spreading code and a time division multiplexing manner, and it is supported that ports in at least one port group corresponding to the reference signal are orthogonally multiplexed on the 6 resource units.
In one example, determining that the reference signals are orthogonally multiplexed by means of a frequency domain orthogonal spreading code and time division multiplexing on 6 resource units on a set of reference signal resources can realize the support of a maximum number of 4 orthogonal ports. For example, as shown in a reference signal resource set 850 shown in fig. 8, one PRB includes 2 symbols, each of the 2 symbols has 12 resource units, 3 consecutive resource units on the symbol 1 are resource unit 1, resource unit 2, and resource unit 3, and 3 consecutive resource units on the symbol 2 are resource unit 4, resource unit 5, and resource unit 6, and the reference signal resource set 850 may correspond to port group 1 and port group 2 of a reference signal; wherein, by means of time division multiplexing, the resource unit on the symbol 1 is orthogonal to the resource unit on the symbol 2; the length of the frequency domain OCC code is 2, the reference signals in the resource units 1 and 2 may respectively correspond to the code sequences {11} and {1-1}, the reference signals in the resource units 4 and 5 may respectively correspond to the code sequences {11} and {1-1}, and the reference signals in the resource units 3 and 6 may not be mapped, so that the resource units 1 and 2 may correspond to the ports 1 and 2 in the port group 1, and the resource units 4 and 5 may correspond to the ports 3 and 4 in the port group 2.
When T is equal to 2 and K is equal to 3, the reference signal resource set includes 6 resource units, where the 6 resource units are 3 consecutive resource units on each of 2 symbols of one PRB, the reference signal is orthogonally multiplexed on the 6 resource units in a frequency division multiplexing and time division multiplexing manner, and ports in at least one port group corresponding to the reference signal are supported to be orthogonally multiplexed on the 6 resource units.
In one example, the reference signals are determined to be orthogonally multiplexed on 6 resource units by frequency division multiplexing and time division multiplexing with 3 comb teeth on the reference signal resource set, and the support of the maximum number of 6 orthogonal ports can be realized. For example, as shown in the reference signal resource set 840 shown in fig. 8, one PRB includes 2 symbols, each of the 2 symbols has 12 resource units, 3 consecutive resource units on the symbol 1 are resource unit 1, resource unit 2, and resource unit 3, and 3 consecutive resource units on the symbol 2 are resource unit 4, resource unit 5, and resource unit 6, and the reference signal resource set 840 may correspond to port group 1, port group 2, and port group 3 of the reference signal; wherein, by means of time division multiplexing, the resource unit on the symbol 1 is orthogonal to the resource unit on the symbol 2; through a frequency division multiplexing mode with 3 comb teeth and 1 comb tooth granularity, the combination of the resource unit 1 and the resource unit 4, the combination of the resource unit 2 and the resource unit 5, and the combination of the resource unit 3 and the resource unit 6 are orthogonal pairwise; then, resource unit 1 and resource unit 4 may correspond to port 1 and port 2 in port group 1, resource unit 2 and resource unit 5 may correspond to port 3 and port 4 in port group 2, and resource unit 3 and resource unit 6 may correspond to port 5 and port 6 in port group 3.
When T is equal to 2 and K is equal to 3, the reference signal resource set includes 6 resource units, where the 6 resource units are 3 consecutive resource units on each of 2 symbols of one PRB, and the reference signal is orthogonally multiplexed on the 6 resource units in a frequency domain orthogonal spreading code, frequency division multiplexing, and time division multiplexing manner, and ports in at least one port group corresponding to the reference signal are supported to be orthogonally multiplexed on the resource units corresponding to the reference signal resource set.
In one example, determining that the reference signals are orthogonally multiplexed on 6 resource units by means of frequency domain orthogonal spreading codes, frequency division multiplexing and time division multiplexing on the reference signal resource set can realize the support of the maximum number of 6 orthogonal ports. For example, as shown in a reference signal resource set 860 of fig. 8, one PRB includes 2 symbols, each of the 2 symbols has 12 resource elements, 3 consecutive resource elements on symbol 1 are resource element 1, resource element 2, and resource element 3, and 3 consecutive resource elements on symbol 2 are resource element 4, resource element 5, and resource element 6, and the reference signal resource set 860 may correspond to port group 1, port group 2, and port group 3 of a reference signal; wherein, by means of time division multiplexing, the resource unit on the symbol 1 is orthogonal to the resource unit on the symbol 2; by the frequency division multiplexing mode with 2 comb teeth and 2 comb tooth granularities, the combination of the resource unit 1 and the resource unit 2 is orthogonal to the resource unit 3, and the combination of the resource unit 4 and the resource unit 5 is orthogonal to the resource unit 6; the length of the frequency domain OCC code is 2, the reference signals in the resource unit 1 and the resource unit 2 may respectively correspond to the code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 4 and the resource unit 5 may respectively correspond to the code sequence {11}, the code sequence {1-1}, so that the resource unit 1 and the resource unit 2 may correspond to the port 1 and the port 2 in the port group 1, the resource unit 4 and the resource unit 5 may correspond to the port 3 and the port 4 in the port group 2, and the resource unit 3 and the resource unit 6 may correspond to the port 5 and the port 6 in the port group 3.
When T is equal to 4 and K is equal to 3, the reference signal resource set includes 12 resource units, where the 12 resource units are 3 consecutive resource units on each of 4 symbols of one PRB, the reference signal is orthogonally multiplexed on the 12 resource units by a time-domain orthogonal spreading code and a frequency division multiplexing manner, and it is supported that a port in at least one port group corresponding to the reference signal is orthogonally multiplexed on a resource unit corresponding to the reference signal resource set.
In one example, the reference signals are determined to be orthogonally multiplexed on 12 resource units by means of time domain orthogonal spreading codes and frequency division multiplexing with comb teeth of 2 on the reference signal resource set, and the support of the maximum number of 8 orthogonal ports can be realized. For example, as shown in the reference signal resource set 910 shown in fig. 9, one PRB includes 4 symbols, where 12 resource elements are on each of the 4 symbols, 3 consecutive resource elements on the symbol 1 are resource element 1, resource element 2, and resource element 3, 3 consecutive resource elements on the symbol 2 are resource element 4, resource element 5, and resource element 6, 3 consecutive resource elements on the symbol 3 are resource element 7, resource element 8, and resource element 9, and 3 consecutive resource elements on the symbol 4 are resource element 10, resource element 11, and resource element 12, and the reference signal resource set 910 may correspond to port group 4 and port group 5 of the reference signal; by the frequency division multiplexing mode with 2 comb teeth and 1 comb tooth granularity, the combination of the resource unit 2, the resource unit 5, the resource unit 8 and the resource unit 11 is orthogonal to the combination of the resource unit 1, the resource unit 4, the resource unit 7 and the resource unit 10 and the combination of the resource unit 3, the resource unit 6, the resource unit 9 and the resource unit 12; the length of the time-domain OCC code is 4, the reference signals of the resource units 1, 4, 7, 10 can correspond to the code sequences { 1111 }, 1-11-1 }, j-1-j 1}, 1 j-1-j, 2, 5, 8, 11 can correspond to the code sequences { 1111 }, 1-11-1 }, j-1-j 1}, 1 j-1-j, 3, 6, 9, 12, 1111, 1-11-1 }, 1 j-1-j, 1, respectively, Code sequence {1 j-1-j }, then, resource unit 1, resource unit 4, resource unit 7, resource unit 10 may correspond to port 1, port 2, port 3, port 4 in port group 4, resource unit 2, resource unit 5, resource unit 8, resource unit 11 may correspond to port 5, port 6, port 7, port 8 in port group 5, and resource unit 3, resource unit 6, resource unit 9, resource unit 12 may correspond to port 1, port 2, port 3, port 4 in port group 4.
In one example, the reference signals are determined to be orthogonally multiplexed on 12 resource units by means of time domain orthogonal spreading codes and frequency division multiplexing with 3 comb teeth on the reference signal resource set, and the support of the maximum number of 12 orthogonal ports can be realized. For example, as a reference signal resource set 920 shown in fig. 9, one PRB includes 4 symbols, where each of the 4 symbols has 12 resource elements, 3 consecutive resource elements on the symbol 1 are resource element 1, resource element 2, and resource element 3, 3 consecutive resource elements on the symbol 2 are resource element 4, resource element 5, and resource element 6, 3 consecutive resource elements on the symbol 3 are resource element 7, resource element 8, and resource element 9, and 3 consecutive resource elements on the symbol 4 are resource element 10, resource element 11, and resource element 12, and the reference signal resource set 920 may correspond to port group 4, port group 5, and port group 6 of the reference signal; by a frequency division multiplexing mode with 3 comb teeth and 1 comb tooth granularity, the combination of the resource unit 2, the resource unit 5, the resource unit 8 and the resource unit 11, the combination of the resource unit 1, the resource unit 4, the resource unit 7 and the resource unit 10, and the combination of the resource unit 3, the resource unit 6, the resource unit 9 and the resource unit 12 are orthogonal in pairs; the length of the time-domain OCC code is 4, the reference signals of the resource units 1, 4, 7, 10 can correspond to the code sequences { 1111 }, 1-11-1 }, j-1-j 1}, 1 j-1-j, 2, 5, 8, 11 can correspond to the code sequences { 1111 }, 1-11-1 }, j-1-j 1}, 1 j-1-j, 3, 6, 9, 12, 1111, 1-11-1 }, 1 j-1-j, 1, respectively, Code sequence {1 j-1-j }, then resource unit 1, resource unit 4, resource unit 7, resource unit 10 may correspond to port 1, port 2, port 3, port 4 in port group 4, resource unit 2, resource unit 5, resource unit 8, resource unit 11 may correspond to port 5, port 6, port 7, port 8 in port group 5, and resource unit 3, resource unit 6, resource unit 9, resource unit 12 may correspond to port 9, port 10, port 11, port 12 in port group 6.
When T is equal to 4 and K is equal to 3, the reference signal resource set includes 12 resource units, where the 12 resource units are 3 consecutive resource units on each of 4 symbols of one PRB, a reference signal is orthogonally multiplexed on the 12 resource units by a frequency domain orthogonal spreading code and a time division multiplexing manner, and it is supported that a port in at least one port group corresponding to the reference signal is orthogonally multiplexed on a resource unit corresponding to the reference signal resource set.
In one example, determining that the reference signals are orthogonally multiplexed by means of a frequency domain orthogonal spreading code and time division multiplexing on 12 resource units on a set of reference signal resources can realize the support of a maximum number of 8 orthogonal ports. For example, one PRB includes 4 symbols with 12 resource elements on each of the 4 symbols, and the reference signal resource set includes: the 3 consecutive resource units on the symbol 1 are resource unit 1, resource unit 2, and resource unit 3, the 3 consecutive resource units on the symbol 2 are resource unit 4, resource unit 5, and resource unit 6, the 3 consecutive resource units on the symbol 3 are resource unit 7, resource unit 8, and resource unit 9, and the 3 consecutive resource units on the symbol 4 are resource unit 10, resource unit 11, and resource unit 12; the reference signal resource set may correspond to port group 1, port group 2, port group 3, and port group 7 of the reference signal; wherein, by a time division multiplexing mode, the resource unit on the symbol 1 is orthogonal to the resource units on the symbol 2, the symbol 3 and the symbol 4, the resource unit on the symbol 2 is orthogonal to the resource units on the symbol 3 and the symbol 4, and the resource unit on the symbol 3 is orthogonal to the resource unit on the symbol 4; the length of the frequency domain OCC code is 2, the reference signals in the resource units 1 and 2 may respectively correspond to the code sequence {11}, the code sequence {1-1}, the reference signals in the resource units 4 and 5 may respectively correspond to the code sequence {11}, the code sequence {1-1}, the reference signals in the resource units 7 and 8 may respectively correspond to the code sequence {11}, the code sequence {1-1}, the reference signals in the resource units 10 and 11 may respectively correspond to the code sequence {11}, the code sequence {1-1}, the reference signals in the resource units 3, 6, 9, and 12 may not be mapped, and thus, the resource units 1 and 2 may correspond to the ports 1 and 2 in the port group 1, and the resource units 4 and 5 may correspond to the ports 3, 3 in the port group 2, The port 4, the resource unit 7, and the resource unit 8 may correspond to the port 5 and the port 6 in the port group 3, and the resource unit 10 and the resource unit 11 may correspond to the port 7 and the port 8 in the port group 7.
Under the condition that T is equal to 4 and K is equal to 3, the reference signal resource set includes 12 resource units, where the 12 resource units are 3 consecutive resource units on each of 4 symbols of one PRB, the reference signal is orthogonally multiplexed on the 12 resource units in a frequency division multiplexing and time division multiplexing manner, and ports in at least one port group corresponding to the reference signal are supported to be orthogonally multiplexed on the resource units corresponding to the reference signal resource set.
In one example, determining that the reference signals are orthogonally multiplexed on 12 resource units by frequency division multiplexing and time division multiplexing on the reference signal resource set can realize the support of the maximum 12 orthogonal ports. For example, as shown in the reference signal resource set 920 shown in fig. 9, one PRB includes 4 symbols, where each of the 4 symbols has 12 resource elements, 3 consecutive resource elements on symbol 1 are resource element 1, resource element 2, and resource element 3, 3 consecutive resource elements on symbol 2 are resource element 4, resource element 5, and resource element 6, 3 consecutive resource elements on symbol 3 are resource element 7, resource element 8, and resource element 9, and 3 consecutive resource elements on symbol 4 are resource element 10, resource element 11, and resource element 12; the set of reference signal resources 920 may correspond to port group 4, port group 5, and port group 6 of reference signals; wherein, by a time division multiplexing mode, the resource unit on the symbol 1 is orthogonal to the resource units on the symbol 2, the symbol 3 and the symbol 4, the resource unit on the symbol 2 is orthogonal to the resource units on the symbol 3 and the symbol 4, and the resource unit on the symbol 3 is orthogonal to the resource unit on the symbol 4; through a frequency division multiplexing mode with 3 comb teeth and 1 comb tooth granularity, the combination of the resource unit 2, the resource unit 5, the resource unit 8 and the resource unit 11, the combination of the resource unit 1, the resource unit 4, the resource unit 7 and the resource unit 10, and the combination of the resource unit 3, the resource unit 6, the resource unit 9 and the resource unit 12 are orthogonal in pairs; then, resource unit 1, resource unit 4, resource unit 7, and resource unit 10 may correspond to port 1, port 2, port 3, and port 4 in port group 4, resource unit 2, resource unit 5, resource unit 8, and resource unit 11 may correspond to port 5, port 6, port 7, and port 8 in port group 5, and resource unit 3, resource unit 6, resource unit 9, and resource unit 12 may correspond to port 9, port 10, port 11, and port 12 in port group 6.
Under the condition that T is equal to 2 and K is equal to 4, the reference signal resource set includes 8 resource units, where the 8 resource units are 4 consecutive resource units on each of 2 symbols of one PRB, and the reference signal is orthogonally multiplexed on the 8 resource units in a manner of cyclic shift of a sequence, frequency division multiplexing, and time domain orthogonal spreading code, and ports in at least one port group corresponding to the reference signal are supported to be orthogonally multiplexed on the resource units corresponding to the reference signal resource set.
In one example, determining that the reference signal is orthogonally multiplexed on 8 resource units by means of two cyclic shifts of the sequence and a frequency division multiplexing with comb teeth of 2 and a time domain orthogonal spreading code on a reference signal resource set can realize the support of the maximum number of 8 orthogonal ports. For example, as shown in a reference signal resource set 1010 shown in fig. 10, one PRB includes 2 symbols, each of the 2 symbols has 12 resource units, 4 consecutive resource units on the symbol 1 are resource unit 1, resource unit 2, resource unit 3, and resource unit 4, 4 consecutive resource units on the symbol 2 are resource unit 5, resource unit 6, resource unit 7, and resource unit 8, and the reference signal resource set 1010 may correspond to a port group 4 and a port group 5 of a reference signal, where, by a frequency division multiplexing mode in which comb is 2 and comb granularity is 1 resource unit, a combination of resource unit 1, resource unit 3, resource unit 5, and resource unit 7 is orthogonal to a combination of resource unit 2, resource unit 4, resource unit 6, and resource unit 8; the length of the time-domain OCC code is 2, the reference signals in the resource units 1 and 5 may respectively correspond to the code sequences {11}, code sequences {1-1}, the reference signals in the resource units 2 and 6 may respectively correspond to the code sequences {11}, code sequences {1-1}, the reference signals in the resource units 3 and 7 may respectively correspond to the code sequences {11}, code sequences {1-1}, and the reference signals in the resource units 4 and 8 may respectively correspond to the code sequences {11}, code sequences {1-1 }; two mutually orthogonal reference signals are obtained by performing two cyclic shifts of a sequence on each resource unit, that is, performing two different cyclic shifts based on one basic reference signal sequence, so that the resource unit 1 and the resource unit 5 may correspond to the port 1, the port 2, the port 3, and the port 4 in the port group 4, the resource unit 2 and the resource unit 6 may correspond to the port 5, the port 6, the port 7, and the port 8 in the port group 5, the resource unit 3 and the resource unit 7 may correspond to the port 1, the port 2, the port 3, and the port 4 in the port group 4, and the resource unit 4 and the resource unit 8 may correspond to the port 5, the port 6, the port 7, and the port 8 in the port group 5.
In one example, determining that the reference signal is orthogonally multiplexed on 8 resource units by means of two cyclic shifts of the sequence and a frequency division multiplexing with 3 comb teeth and a time domain orthogonal spreading code on a reference signal resource set can realize the support of the maximum number of 12 orthogonal ports. For example, as shown in the reference signal resource set 1020 shown in fig. 10, one PRB includes 2 symbols, each of the 2 symbols has 12 resource elements, 4 consecutive resource elements on the symbol 1 are resource element 1, resource element 2, resource element 3, and resource element 4, 4 consecutive resource elements on the symbol 2 are resource element 5, resource element 6, resource element 7, and resource element 8, the reference signal resource set 1020 may correspond to a port group 4, a port group 5, and a port group 6 of a reference signal, wherein a combination of resource element 1, resource element 4, resource element 5, and resource element 8 is orthogonal to a combination of resource element 2, resource element 6, and a combination of resource element 3 and resource element 7, and a combination of resource element 2 and resource element 6 is orthogonal to a combination of resource element 3, and resource element 8 by a frequency division multiplexing method with a comb of 3 and a comb granularity of 1 resource element, The combination of resource units 7 is orthogonal; the length of the time-domain OCC code is 2, the reference signals in the resource units 1 and 5 may respectively correspond to the code sequences {11}, code sequences {1-1}, the reference signals in the resource units 2 and 6 may respectively correspond to the code sequences {11}, code sequences {1-1}, the reference signals in the resource units 3 and 7 may respectively correspond to the code sequences {11}, code sequences {1-1}, and the reference signals in the resource units 4 and 8 may respectively correspond to the code sequences {11}, code sequences {1-1 }; two mutually orthogonal reference signals are obtained by performing two cyclic shifts of a sequence on each resource unit, that is, performing two different cyclic shifts based on one basic reference signal sequence, so that the resource unit 1 and the resource unit 5 may correspond to the port 1, the port 2, the port 3, and the port 4 in the port group 4, the resource unit 2 and the resource unit 6 may correspond to the port 5, the port 6, the port 7, and the port 8 in the port group 5, the resource unit 3 and the resource unit 7 may correspond to the port 9, the port 10, the port 11, and the port 12 in the port group 6, and the resource unit 4 and the resource unit 8 may correspond to the port 1, the port 2, the port 3, and the port 4 in the port group 4.
Under the condition that T is equal to 2 and K is equal to 4, the reference signal resource set includes 8 resource units, where the 8 resource units are 4 consecutive resource units on each of 2 symbols of one PRB, the reference signal is orthogonally multiplexed on the 8 resource units by a time-domain orthogonal spreading code and a frequency division multiplexing manner, and it is supported that a port in at least one port group corresponding to the reference signal is orthogonally multiplexed on a resource unit corresponding to the reference signal resource set.
In one example, it is determined on the reference signal resource set that the reference signal is orthogonally multiplexed on 8 resource units by means of a time domain orthogonal spreading code and frequency division multiplexing with comb teeth of 2, and the support of the maximum number of 4 orthogonal ports can be realized. For example, as shown in the reference signal resource set 1030 shown in fig. 10, one PRB includes 2 symbols, each of the 2 symbols has 12 resource elements, 4 consecutive resource elements on the symbol 1 are resource element 1, resource element 2, resource element 3, and resource element 4, and 4 consecutive resource elements on the symbol 2 are resource element 5, resource element 6, resource element 7, and resource element 8, and the reference signal resource set 1030 may correspond to port group 1 and port group 2 of the reference signal; wherein, by the frequency division multiplexing mode with 2 comb teeth and 1 comb tooth granularity, the combination of the resource unit 1, the resource unit 3, the resource unit 5 and the resource unit 7 is orthogonal to the combination of the resource unit 2, the resource unit 4, the resource unit 6 and the resource unit 8; the length of the time-domain OCC code is 2, the reference signals of the resource units 1 and 5 may respectively correspond to the code sequences {11}, code sequences {1-1}, the reference signals of the resource units 2 and 6 may respectively correspond to the code sequences {11}, code sequences {1-1}, the reference signals of the resource units 3 and 7 may respectively correspond to the code sequences {11}, code sequences {1-1}, and the reference signals of the resource units 4 and 8 may respectively correspond to the code sequences {11}, code sequences {1-1}, so that the resource units 1 and 5 may correspond to the ports 1 and 2 in the port group 1, the resource units 2 and 6 may correspond to the ports 3 and 4 in the port group 2, and the resource units 3 and 7 may correspond to the ports 1, 1 in the port group 1, The ports 2, 4, 8 may correspond to the ports 3, 4 in the port group 2.
In one example, it is determined on the reference signal resource set that the reference signal is orthogonally multiplexed on 8 resource units by means of time domain orthogonal spreading codes and frequency division multiplexing with 3 comb teeth, and the support of the maximum number of 6 orthogonal ports can be realized. For example, as shown in the reference signal resource set 1040 shown in fig. 10, one PRB includes 2 symbols, where each of the 2 symbols has 12 resource elements, 4 consecutive resource elements on the symbol 1 are resource element 1, resource element 2, resource element 3, and resource element 4, and 4 consecutive resource elements on the symbol 2 are resource element 5, resource element 6, resource element 7, and resource element 8, and the reference signal resource set 1040 may correspond to port group 1, port group 2, and port group 3 of the reference signal; by the frequency division multiplexing mode with 3 comb teeth and 1 comb tooth granularity, the combination of the resource unit 1, the resource unit 4, the resource unit 5 and the resource unit 8 is orthogonal to the combination of the resource unit 2 and the resource unit 6 and the combination of the resource unit 3 and the resource unit 7, and the combination of the resource unit 2 and the resource unit 6 is orthogonal to the combination of the resource unit 3 and the resource unit 7; the length of the time-domain OCC code is 2, the reference signals of the resource units 1 and 5 may respectively correspond to the code sequences {11}, code sequences {1-1}, the reference signals of the resource units 2 and 6 may respectively correspond to the code sequences {11}, code sequences {1-1}, the reference signals of the resource units 3 and 7 may respectively correspond to the code sequences {11}, code sequences {1-1}, and the reference signals of the resource units 4 and 8 may respectively correspond to the code sequences {11}, code sequences {1-1}, so that the resource units 1 and 5 may correspond to the ports 1 and 2 in the port group 1, the resource units 2 and 6 may correspond to the ports 3 and 4 in the port group 2, and the resource units 3 and 7 may correspond to the ports 5, b, c in the port group 3, The ports 6, 4, and 8 may correspond to the ports 1 and 2 in the port group 1.
Under the condition that T is equal to 2 and K is equal to 4, the reference signal resource set includes 8 resource units, where the 8 resource units are 4 consecutive resource units on each of 2 symbols of one PRB, the reference signal is orthogonally multiplexed on the 8 resource units by a frequency domain orthogonal spreading code and a time division multiplexing manner, and it is supported that a port in at least one port group corresponding to the reference signal is orthogonally multiplexed on a resource unit corresponding to the reference signal resource set.
In one example, determining that the reference signals are orthogonally multiplexed on 8 resource units by means of a frequency domain orthogonal spreading code and time division multiplexing on a set of reference signal resources can realize the support of a maximum number of 8 orthogonal ports. For example, as shown in the reference signal resource set 1050 shown in fig. 10, one PRB includes 2 symbols, each of the 2 symbols has 12 resource elements, 4 consecutive resource elements on the symbol 1 are resource element 1, resource element 2, resource element 3, and resource element 4, and 4 consecutive resource elements on the symbol 2 are resource element 5, resource element 6, resource element 7, and resource element 8, and the reference signal resource set 1050 may correspond to port group 4 and port group 5 of the reference signal; wherein, by means of time division multiplexing, the resource unit on the symbol 1 is orthogonal to the resource unit on the symbol 2; the length of the frequency domain OCC code is 4, the reference signals of the resource unit 1, the resource unit 2, the resource unit 3 and the resource unit 4 can respectively correspond to a code sequence { 1111 }, a code sequence { j-1-j 1}, a code sequence {1 j-1-j }, a code sequence { 1-11-1 }, and the reference signals of the resource unit 5, the resource unit 6, the resource unit 7 and the resource unit 8 can respectively correspond to a code sequence { 1111 }, a code sequence { j-1-j 1}, a code sequence {1 j-1-j }, and a code sequence { 1-11-1 }; then, resource unit 1, resource unit 2, resource unit 3, and resource unit 4 may correspond to port 1, port 2, port 3, and port 4 in port group 4, and resource unit 5, resource unit 6, resource unit 7, and resource unit 8 may correspond to port 5, port 6, port 7, and port 8 in port group 5.
Under the condition that T is equal to 2 and K is equal to 4, the reference signal resource set includes 8 resource units, where the 8 resource units are 4 consecutive resource units on each of 2 symbols of one PRB, and the reference signal is orthogonally multiplexed on the 8 resource units in a frequency domain orthogonal spreading code, frequency division multiplexing, and time division multiplexing manner, and ports in at least one port group corresponding to the reference signal are supported to be orthogonally multiplexed on the resource units corresponding to the reference signal resource set.
In one example, determining that the reference signals are orthogonally multiplexed on 8 resource units by means of frequency domain orthogonal spreading codes, frequency division multiplexing and time division multiplexing on the reference signal resource set can realize the support of the maximum number of 8 orthogonal ports. For example, as shown in the reference signal resource set 1060 shown in fig. 10, one PRB includes 2 symbols, each of the 2 symbols has 12 resource elements, 4 consecutive resource elements on the symbol 1 are resource element 1, resource element 2, resource element 3, and resource element 4, and 4 consecutive resource elements on the symbol 2 are resource element 5, resource element 6, resource element 7, and resource element 8, and the reference signal resource set 1060 may correspond to port group 4 and port group 5 of the reference signal; wherein, by means of time division multiplexing, the resource unit on the symbol 1 is orthogonal to the resource unit on the symbol 2; by the frequency division multiplexing mode with 2 comb teeth and 2 comb tooth granularities, the combination of the resource unit 1, the resource unit 2, the resource unit 5 and the resource unit 6 is orthogonal to the combination of the resource unit 3, the resource unit 4, the resource unit 7 and the resource unit 8; the length of the frequency domain OCC code is 2, the reference signals in the resource unit 1 and the resource unit 2 may respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 3 and the resource unit 4 may respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 5 and the resource unit 6 may respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 7 and the resource unit 8 may respectively correspond to a code sequence {11}, the code sequence {1-1}, and the code sequence {1-1}, so that the resource unit 1, the resource unit 2, the resource unit 5, and the resource unit 6 may correspond to a port 1, a port 2, a port 3, a port 4, the resource unit 3, the resource unit 4, the resource unit 7, and the resource unit 8 may correspond to a port 5, a port 4, a port 5, and a port 4 in the port group 5 Port 6, port 7, port 8.
Under the condition that T is equal to 4 and K is equal to 4, the reference signal resource set includes 16 resource units, the 16 resource units are 4 consecutive resource units on each of 4 symbols of one PRB, the reference signal is orthogonally multiplexed on the 16 resource units by a time domain orthogonal spreading code and a frequency division multiplexing manner, and it is supported that a port in at least one port group corresponding to the reference signal is orthogonally multiplexed on a resource unit corresponding to the reference signal resource set.
In one example, the reference signals are determined to be orthogonally multiplexed on 16 resource units by means of time domain orthogonal spreading codes and frequency division multiplexing with comb teeth of 2 on the reference signal resource set, and the support of the maximum number of 8 orthogonal ports can be realized. For example, as shown in the reference signal resource set 1110 shown in fig. 11, one PRB includes 4 symbols, where 12 resource elements are on each of the 4 symbols, 4 consecutive resource elements on the symbol 1 are resource element 1, resource element 2, resource element 3, and resource element 4, 4 consecutive resource elements on the symbol 2 are resource element 5, resource element 6, resource element 7, and resource element 8, 4 consecutive resource elements on the symbol 3 are resource element 9, resource element 10, resource element 11, and resource element 12, and 4 consecutive resource elements on the symbol 4 are resource element 13, resource element 14, resource element 15, and resource element 16, and the reference signal resource set 1110 may correspond to port group 4 and port group 5 of the reference signal; wherein, by the frequency division multiplexing mode with 2 comb teeth and 1 comb tooth granularity, the combination of the resource unit 1, the resource unit 3, the resource unit 5, the resource unit 7, the resource unit 9, the resource unit 11, the resource unit 13 and the resource unit 15 is orthogonal to the combination of the resource unit 2, the resource unit 4, the resource unit 6, the resource unit 8, the resource unit 10, the resource unit 12, the resource unit 14 and the resource unit 16; the length of the time-domain OCC code is 4, the reference signals of the resource units 1, 5, 9, 13 can correspond to the code sequences { 1111 }, 1-11-1 }, j-1-j 1}, 1 j-1-j, respectively, the reference signals of the resource units 2, 6, 10, 14 can correspond to the code sequences { 1111 }, 1-11-1 }, j-1-j 1}, 1 j-1-j, respectively, the reference signals of the resource units 3, 7, 11, 15 can correspond to the code sequences { 1111 }, 1-11-1 }, j-1-j 1}, respectively, The code sequence {1 j-1-j }, the reference signals in the resource units 4, 8, 12, 16 may correspond to the code sequence { 1111 }, the code sequence { 1-11-1 }, the code sequence { j-1-j 1}, the code sequence {1 j-1-j }, respectively, so that the resource units 1, 5, 9, 13 may correspond to the ports 1, 2, 3, 4 in the port group 4, the resource units 2, 6, 10, 14 may correspond to the ports 5, 6, 7, 8 in the port group 5, the resource units 3, 7, 11, 15 may correspond to the ports 1, 2, 3, 4 in the port group 4, resource units 4, 8, 12, 16 may correspond to ports 5, 6, 7, 8 within a port group 5.
In one example, the reference signals are determined to be orthogonally multiplexed on 16 resource units by means of time domain orthogonal spreading codes and frequency division multiplexing with 3 comb teeth on the reference signal resource set, and the support of the maximum number of 12 orthogonal ports can be realized. For example, as shown in the reference signal resource set 1120 shown in fig. 11, one PRB includes 4 symbols, where each of the 4 symbols has 12 resource elements, 4 consecutive resource elements on the symbol 1 are resource element 1, resource element 2, resource element 3, and resource element 4, 4 consecutive resource elements on the symbol 2 are resource element 5, resource element 6, resource element 7, and resource element 8, 4 consecutive resource elements on the symbol 3 are resource element 9, resource element 10, resource element 11, and resource element 12, and 4 consecutive resource elements on the symbol 4 are resource element 13, resource element 14, resource element 15, and resource element 16, and the reference signal resource set 1120 may correspond to port group 4, port group 5, and port group 6 of the reference signal; wherein, by the frequency division multiplexing mode with 3 comb teeth and 1 comb tooth granularity, the combination of the resource unit 1, the resource unit 4, the resource unit 5, the resource unit 8, the resource unit 9, the resource unit 12, the resource unit 13 and the resource unit 16 is orthogonal to the combination of the resource unit 2, the resource unit 6, the resource unit 10 and the resource unit 14 and the combination of the resource unit 3, the resource unit 7, the resource unit 11 and the resource unit 15, and the combination of the resource unit 2, the resource unit 6, the resource unit 10 and the resource unit 14 is orthogonal to the combination of the resource unit 3, the resource unit 7, the resource unit 11 and the resource unit 15; the length of the time-domain OCC code is 4, the reference signals of the resource units 1, 5, 9, 13 can correspond to the code sequences { 1111 }, 1-11-1 }, j-1-j 1}, 1 j-1-j, respectively, the reference signals of the resource units 2, 6, 10, 14 can correspond to the code sequences { 1111 }, 1-11-1 }, j-1-j 1}, 1 j-1-j, respectively, the reference signals of the resource units 3, 7, 11, 15 can correspond to the code sequences { 1111 }, 1-11-1 }, j-1-j 1}, respectively, The code sequence {1 j-1-j }, the reference signals in the resource units 4, 8, 12, 16 may correspond to the code sequence { 1111 }, the code sequence { 1-11-1 }, the code sequence { j-1-j 1}, the code sequence {1 j-1-j }, respectively, so that the resource units 1, 5, 9, 13 may correspond to the ports 1, 2, 3, 4 in the port group 4, the resource units 2, 6, 10, 14 may correspond to the ports 5, 6, 7, 8 in the port group 5, the resource units 3, 7, 11, 15 may correspond to the ports 9, 10, 11, 12 in the port group 6, resource units 4, 8, 12, 16 may correspond to ports 1, 2, 3, 4 within port group 4.
Under the condition that T is equal to 4 and K is equal to 4, the reference signal resource set includes 16 resource units, the 16 resource units are 4 consecutive resource units on each of 4 symbols of one PRB, the reference signal is orthogonally multiplexed on the 16 resource units by a frequency domain orthogonal spreading code and a time division multiplexing manner, and it is supported that a port in at least one port group corresponding to the reference signal is orthogonally multiplexed on the resource unit corresponding to the reference signal resource set.
In one example, determining that reference signals are orthogonally multiplexed over 16 resource elements by way of frequency domain orthogonal spreading codes and time division multiplexing over a set of reference signal resources may enable support of a maximum number of 16 orthogonal ports. For example, one PRB includes 4 symbols with 12 resource elements on each of the 4 symbols, and the reference signal resource set includes: 4 consecutive resource units on symbol 1 are resource unit 1, resource unit 2, resource unit 3, resource unit 4, 4 consecutive resource units on symbol 2 are resource unit 5, resource unit 6, resource unit 7, resource unit 8, 4 consecutive resource units on symbol 3 are resource unit 9, resource unit 10, resource unit 11, resource unit 12, 4 consecutive resource units on symbol 4 are resource unit 13, resource unit 14, resource unit 15, resource unit 16; the set of reference signal resources may correspond to port group 4, port group 5, port group 6, port group 10 of reference signals; wherein, by a time division multiplexing mode, the resource unit on the symbol 1 is orthogonal to the resource units on the symbol 2, the symbol 3 and the symbol 4, the resource unit on the symbol 2 is orthogonal to the resource units on the symbol 3 and the symbol 4, and the resource unit on the symbol 3 is orthogonal to the resource unit on the symbol 4; the length of the frequency domain OCC code is 4, the reference signals in the resource units 1, 2, 3, 4 can correspond to the code sequences { 1111 }, 1-11-1 }, j-1-j 1}, 1 j-1-j, 5, 6, 7, 8 can correspond to the code sequences { 1111 }, 1-11-1 }, j-1-j 1}, 1 j-1-j, 9, 10, 11, 12 can correspond to the code sequences { 1111 }, 1-11-1 }, 1 j-1-j 1}, respectively, The code sequences {1 j-1-j }, the reference signals on the resource units 13, 14, 15, 16 may correspond to the code sequences { 1111 }, 1-11-1 }, 1-j 1}, 1 j-1-j } respectively; then, resource unit 1, resource unit 2, resource unit 3, resource unit 4 may correspond to port 1, port 2, port 3, port 4 in port group 4, resource unit 5, resource unit 6, resource unit 7, resource unit 8 may correspond to port 5, port 6, port 7, port 8 in port group 5, resource unit 9, resource unit 10, resource unit 11, resource unit 12 may correspond to port 9, port 10, port 11, port 12 in port group 6, resource unit 13, resource unit 14, resource unit 15, resource unit 16 may correspond to port 13, port 14, port 15, port 16 in port group 10.
Under the condition that T is equal to 2 and K is equal to 6, the reference signal resource set includes 12 resource units, where the 12 resource units are 6 consecutive resource units on each of 2 symbols of one PRB, and the reference signal is orthogonally multiplexed on the 12 resource units by means of cyclic shift of a sequence, frequency division multiplexing, and time domain orthogonal spreading codes, and ports in at least one port group corresponding to the reference signal are supported to be orthogonally multiplexed on the resource units corresponding to the reference signal resource set.
In one example, it is determined on a reference signal resource set that a reference signal is orthogonally multiplexed on 12 resource units by means of two cyclic shifts of a sequence and frequency division multiplexing and time domain orthogonal spreading codes with 2 comb teeth and 1 comb tooth granularity, and the maximum number of 8 orthogonal ports can be supported. For example, as a reference signal resource set 1210 shown in fig. 12, one PRB includes 2 symbols, each of the 2 symbols has 12 resource units, 6 consecutive resource units on the symbol 1 are resource unit 1, resource unit 2, resource unit 3, resource unit 4, resource unit 5, and resource unit 6, 6 consecutive resource units on the symbol 2 are resource unit 7, resource unit 8, resource unit 9, resource unit 10, resource unit 11, and resource unit 12, the reference signal resource set 1210 may correspond to a port group 4 and a port group 5 of a reference signal, where a combination of resource unit 1, resource unit 3, resource unit 5, resource unit 7, resource unit 9, and resource unit 11 corresponds to resource unit 2, resource unit 4, and resource unit 5 through a frequency division multiplexing method with 2 comb teeth and 1 comb teeth granularity, The combination of resource units 6, 8, 10 and 12 is orthogonal; the length of the time domain OCC code is 2, the reference signals in resource unit 1 and resource unit 7 can correspond to code sequence {11}, code sequence {1-1}, the reference signals in resource unit 2 and resource unit 8 can correspond to code sequence {11}, code sequence {1-1}, the reference signals in resource unit 3 and resource unit 9 can correspond to code sequence {11}, code sequence {1-1}, resource unit 4, the reference signals in the resource unit 10 may respectively correspond to a code sequence {11}, a code sequence {1-1}, the reference signals in the resource unit 5 and the resource unit 11 may respectively correspond to a code sequence {11}, a code sequence {1-1}, and the reference signals in the resource unit 6 and the resource unit 12 may respectively correspond to a code sequence {11}, a code sequence {1-1 }; two mutually orthogonal reference signals are obtained by performing two cyclic shifts of the sequence on each resource unit, that is, performing two different cyclic shifts based on one basic reference signal sequence, so that the resource unit 1 and the resource unit 7 may correspond to the port 1, the port 2, the port 3, and the port 4 in the port group 4, the resource unit 2 and the resource unit 8 may correspond to the port 5, the port 6, the port 7, and the port 8 in the port group 5, the resource unit 3 and the resource unit 9 may correspond to the port 1, the port 2, the port 3, and the port 4 in the port group 4, the resource unit 4 and the resource unit 10 may correspond to the port 5, the port 6, the port 7, and the port 8 in the port group 5, the resource unit 5 and the resource unit 11 may correspond to the port 1, the port 2, the port 3, and the port 4 in the port group 4, and the resource unit 6 and the resource unit 12 may correspond to the port 5, the port 2, the port 3, and the port 4 in the port group 5, Port 6, port 7, port 8.
In one example, it is determined on a reference signal resource set that a reference signal is orthogonally multiplexed on 12 resource units by means of two cyclic shifts of a sequence and frequency division multiplexing and time domain orthogonal spreading codes with 3 comb teeth and 1 comb tooth granularity, and the maximum number of 12 orthogonal ports can be supported. For example, as shown in the reference signal resource set 1220 shown in fig. 12, one PRB includes 2 symbols, each of the 2 symbols has 12 resource elements, 6 consecutive resource elements on the symbol 1 are resource element 1, resource element 2, resource element 3, resource element 4, resource element 5, and resource element 6, 6 consecutive resource elements on the symbol 2 are resource element 7, resource element 8, resource element 9, resource element 10, resource element 11, and resource element 12, and the reference signal resource set 1220 may correspond to a port group 4, a port group 5, and a port group 6 of a reference signal, where a combination of resource element 1, resource element 4, resource element 7, and resource element 10 is a frequency division multiplexing scheme with 3 comb and 1 resource element granularity, and then a combination of resource element 1, resource element 4, resource element 7, and resource element 10 is a combination of resource element 2, resource element 5, resource element 8, The combination of the resource units 11 and the combination of the resource units 3, 6, 9 and 12 are all orthogonal, and the combination of the resource units 2, 5, 8 and 11 is orthogonal to the combination of the resource units 3, 6, 9 and 12; the length of the time domain OCC code is 2, the reference signals in resource unit 1 and resource unit 7 can correspond to code sequence {11}, code sequence {1-1}, the reference signals in resource unit 2 and resource unit 8 can correspond to code sequence {11}, code sequence {1-1}, the reference signals in resource unit 3 and resource unit 9 can correspond to code sequence {11}, code sequence {1-1}, resource unit 4, the reference signals in the resource unit 10 may respectively correspond to a code sequence {11}, a code sequence {1-1}, the reference signals in the resource unit 5 and the resource unit 11 may respectively correspond to a code sequence {11}, a code sequence {1-1}, and the reference signals in the resource unit 6 and the resource unit 12 may respectively correspond to a code sequence {11}, a code sequence {1-1 }; two mutually orthogonal reference signals are obtained by performing two cyclic shifts of the sequence on each resource unit, that is, performing two different cyclic shifts based on one basic reference signal sequence, so that the resource unit 1 and the resource unit 7 may correspond to the port 1, the port 2, the port 3, and the port 4 in the port group 4, the resource unit 2 and the resource unit 8 may correspond to the port 5, the port 6, the port 7, and the port 8 in the port group 5, the resource unit 3 and the resource unit 9 may correspond to the port 9, the port 10, the port 11, and the port 12 in the port group 6, the resource unit 4 and the resource unit 10 may correspond to the port 1, the port 2, the port 3, and the port 4 in the port group 4, the resource unit 5 and the resource unit 11 may correspond to the port 5, the port 6, the port 7, and the port 8 in the port group 5, and the resource unit 6 and the resource unit 12 may correspond to the port 9, the port 6, the port 9, and the port in the port group 6, Port 10, port 11, port 12.
When T is equal to 2 and K is equal to 6, the reference signal resource set includes 12 resource units, where the 12 resource units are 6 consecutive resource units on each of 2 symbols of one PRB, a reference signal is orthogonally multiplexed on the 12 resource units by a time-domain orthogonal spreading code and a frequency division multiplexing manner, and it is supported that a port in at least one port group corresponding to the reference signal is orthogonally multiplexed on a resource unit corresponding to the reference signal resource set.
In one example, the reference signals are determined to be orthogonally multiplexed on 12 resource units by means of time domain orthogonal spreading codes and frequency division multiplexing with comb teeth of 2 on the reference signal resource set, and the support of the maximum number of 4 orthogonal ports can be realized. For example, as shown in the reference signal resource set 1230 shown in fig. 12, one PRB includes 2 symbols, each of the 2 symbols has 12 resource units, 6 consecutive resource units on the symbol 1 are resource unit 1, resource unit 2, resource unit 3, resource unit 4, resource unit 5, and resource unit 6, and 6 consecutive resource units on the symbol 2 are resource unit 7, resource unit 8, resource unit 9, resource unit 10, resource unit 11, and resource unit 12, and the reference signal resource set 1230 may correspond to port group 1 and port group 2 of the reference signal; by the frequency division multiplexing mode with comb teeth of 2, the combination of resource unit 1, resource unit 3, resource unit 5, resource unit 7, resource unit 9 and resource unit 11 is orthogonal to the combination of resource unit 2, resource unit 4, resource unit 6, resource unit 8, resource unit 10 and resource unit 12; the length of the time-domain OCC code is 2, the reference signals in the resource unit 1 and the resource unit 7 can respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 2 and the resource unit 8 can respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 3 and the resource unit 9 can respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 4 and the resource unit 10 can respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 5 and the resource unit 11 can respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 6 and the resource unit 12 can respectively correspond to a code sequence {11}, the code sequence {1-1}, and then, the resource units 1 and 7 may correspond to the ports 1 and 2 in the port group 1, the resource units 2 and 8 may correspond to the ports 3 and 4 in the port group 2, the resource units 3 and 9 may correspond to the ports 1 and 2 in the port group 1, the resource units 4 and 10 may correspond to the ports 3 and 4 in the port group 2, the resource units 5 and 11 may correspond to the ports 1 and 2 in the port group 1, and the resource units 6 and 12 may correspond to the ports 3 and 4 in the port group 2.
In one example, the reference signals are determined to be orthogonally multiplexed on 12 resource units by means of time domain orthogonal spreading codes and frequency division multiplexing with 3 comb teeth on the reference signal resource set, and the support of the maximum number of 6 orthogonal ports can be realized. For example, as a reference signal resource set 1240 shown in fig. 12, one PRB includes 2 symbols, each of the 2 symbols has 12 resource units, 6 consecutive resource units on the symbol 1 are resource unit 1, resource unit 2, resource unit 3, resource unit 4, resource unit 5, and resource unit 6, and 6 consecutive resource units on the symbol 2 are resource unit 7, resource unit 8, resource unit 9, resource unit 10, resource unit 11, and resource unit 12, and the reference signal resource set 1240 may correspond to port group 1, port group 2, and port group 3 of the reference signal; wherein, by the frequency division multiplexing mode with 3 comb teeth and 1 comb tooth granularity, the combination of the resource unit 1, the resource unit 4, the resource unit 7 and the resource unit 10 is orthogonal to the combination of the resource unit 2, the resource unit 5, the resource unit 8 and the resource unit 11 and the combination of the resource unit 3, the resource unit 6, the resource unit 9 and the resource unit 12, and the combination of the resource unit 2, the resource unit 5, the resource unit 8 and the resource unit 11 is orthogonal to the combination of the resource unit 3, the resource unit 6, the resource unit 9 and the resource unit 12; the length of the time-domain OCC code is 2, the reference signals in the resource unit 1 and the resource unit 7 can respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 2 and the resource unit 8 can respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 3 and the resource unit 9 can respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 4 and the resource unit 10 can respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 5 and the resource unit 11 can respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 6 and the resource unit 12 can respectively correspond to a code sequence {11}, the code sequence {1-1}, and then, the resource units 1 and 7 may correspond to the ports 1 and 2 in the port group 1, the resource units 2 and 8 may correspond to the ports 3 and 4 in the port group 2, the resource units 3 and 9 may correspond to the ports 5 and 6 in the port group 3, the resource units 4 and 10 may correspond to the ports 1 and 2 in the port group 1, the resource units 5 and 11 may correspond to the ports 3 and 4 in the port group 2, and the resource units 6 and 12 may correspond to the ports 5 and 6 in the port group 3.
When T is equal to 2 and K is equal to 6, the reference signal resource set includes 12 resource units, where the 12 resource units are 6 consecutive resource units on each of 2 symbols of one PRB, the reference signal is orthogonally multiplexed on the 12 resource units by a frequency domain orthogonal spreading code and a time division multiplexing manner, and it is supported that a port in at least one port group corresponding to the reference signal is orthogonally multiplexed on a resource unit corresponding to the reference signal resource set.
In one example, determining that the reference signal is orthogonally multiplexed by a length-2 frequency domain orthogonal spreading code and time division multiplexing over 12 resource elements on a set of reference signal resources may enable support of a maximum number of 4 orthogonal ports.
In one example, determining that the reference signals are orthogonally multiplexed by a length-4 frequency domain orthogonal spreading code and time division multiplexing over 12 resource elements on a set of reference signal resources may enable support of a maximum number of 8 orthogonal ports.
Under the condition that T is equal to 2 and K is equal to 6, the reference signal resource set includes 12 resource units, where the 12 resource units are 6 consecutive resource units on each of 2 symbols of one PRB, the reference signal is orthogonally multiplexed on the 12 resource units in a frequency domain orthogonal spreading code, frequency division multiplexing, and time division multiplexing manner, and it is supported that a port in at least one port group corresponding to the reference signal is orthogonally multiplexed on the resource unit corresponding to the reference signal resource set.
In one example, determining that the reference signals are orthogonally multiplexed on 12 resource units by means of frequency domain orthogonal spreading codes, frequency division multiplexing and time division multiplexing on the reference signal resource set can realize the support of the maximum number of 12 orthogonal ports. For example, as shown in the reference signal resource set 1250 shown in fig. 12, one PRB includes 2 symbols, each of the 2 symbols has 12 resource units, 6 consecutive resource units on the symbol 1 are resource unit 1, resource unit 2, resource unit 3, resource unit 4, resource unit 5, and resource unit 6, and 6 consecutive resource units on the symbol 2 are resource unit 7, resource unit 8, resource unit 9, resource unit 10, resource unit 11, and resource unit 12, and the reference signal resource set 1250 may correspond to port group 4, port group 5, and port group 6 of the reference signal; wherein, by means of time division multiplexing, the resource unit on the symbol 1 is orthogonal to the resource unit on the symbol 2; by the frequency division multiplexing mode with 3 comb teeth and 2 comb tooth granularities, the combination of the resource unit 1, the resource unit 2, the resource unit 7 and the resource unit 8 is orthogonal to the combination of the resource unit 3, the resource unit 4, the resource unit 9 and the resource unit 10 and the combination of the resource unit 5, the resource unit 6, the resource unit 11 and the resource unit 12; the length of the frequency domain OCC code is 2, the reference signals in the resource unit 1 and the resource unit 2 can respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 3 and the resource unit 4 can respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 5 and the resource unit 6 can respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 7 and the resource unit 8 can respectively correspond to a code sequence {11}, the code sequence {1-1}, the reference signals in the resource unit 9 and the resource unit 10 can respectively correspond to a code sequence {11}, the code sequence {1-1}, and the reference signals in the resource unit 11 and the resource unit 12 can respectively correspond to a code sequence {11}, the code sequence {1-1}, then, the resource units 1, 2, 7, and 8 may correspond to ports 1, 2, 3, and 4 in the port group 4, and the resource units 3, 4, 9, and 10 may correspond to ports 5, 6, 7, and 8 in the port group 5, and the resource units 5, 6, 11, and 12 may correspond to ports 9, 10, 11, and 12 in the port group 6.
Under the condition that T is equal to 4 and K is equal to 6, the reference signal resource set includes 24 resource units, where the 24 resource units are 6 consecutive resource units on each of 4 symbols of one PRB, and the reference signal is orthogonally multiplexed on the 24 resource units by means of a time-domain orthogonal spreading code and frequency division multiplexing, so as to support orthogonal multiplexing of ports in at least one port group corresponding to the reference signal on the 24 resource units.
In one example, it is determined on a reference signal resource set that a reference signal is orthogonally multiplexed on 24 resource units by a time domain orthogonal spreading code with a length of 4 and a frequency division multiplexing mode with a comb of 2 and a comb density of 1 resource unit, and the support of a maximum number of 8 orthogonal ports can be achieved.
In one example, it is determined on a reference signal resource set that a reference signal is orthogonally multiplexed on 24 resource units by a time domain orthogonal spreading code with a length of 4 and a frequency division multiplexing mode with comb teeth of 3 and a comb tooth density of 1 resource unit, and the support of the maximum number of 12 orthogonal ports can be realized.
Under the condition that T is equal to 4 and K is equal to 6, the reference signal resource set includes 24 resource units, where the 24 resource units are 6 consecutive resource units on each of 4 symbols of one PRB, and the reference signals are orthogonally multiplexed on the 24 resource units by a frequency-domain orthogonal spreading code and a time division multiplexing manner, so as to support orthogonal multiplexing of ports in at least one port group corresponding to the reference signals on the 24 resource units.
In one example, determining reference signals on a set of reference signal resources is orthogonally multiplexed by a length-2 frequency domain orthogonal spreading code and time division multiplexing on 24 resource units, which may enable support of a maximum number of 8 orthogonal ports.
In one example, determining reference signals on a set of reference signal resources is orthogonally multiplexed by a length-4 frequency domain orthogonal spreading code and time division multiplexing over 24 resource units, which may enable support of a maximum number of 16 orthogonal ports.
Optionally, a resource unit position corresponding to the at least one port group in a first PRB is different from a resource unit position corresponding to the at least one port group in a second PRB, where the first PRB and the second PRB are two adjacent PRBs occupied by the reference signal. In other words, the transmitting end device or the receiving end device may determine that the positions of the reference signals mapping the same set of antenna ports on the two adjacent PRBs may be different. For example, a reference signal corresponding to a port group 1 is mapped to a resource element 1 on a first PRB, a reference signal corresponding to the port group 1 is mapped to a resource element 2 on a second PRB, the first PRB is adjacent to the second PRB, and the resource element 1 and the resource element 2 have different resource element positions in the two PRBs.
403, the transmitting end device transmits the reference signal on the T × K resource units. Correspondingly, the receiving end device receives the reference signal sent by the sending end device on the T × K resource units.
In the embodiment of the present application, a new reference signal configuration pattern is designed, that is, through multiple orthogonal multiplexing modes, reference signals corresponding to multiple ports can implement orthogonal multiplexing on part of resource units in one PRB, and can support more types of data transmission modes; in addition, a part of resource units which are continuous in the time domain and continuous in the frequency domain in one PRB are used for mapping the reference signal, so that the energy consumption of detecting the reference signal by receiving end equipment can be reduced; in addition, the reference signal occupies part of resources of the PRB, and other resource units on the PRB may be used to transmit other signaling or information, which is beneficial to improving the utilization efficiency of the resources.
Fig. 13 is a schematic structural diagram of a sending-end device according to an embodiment of the present application. The sending end device may be a network device or may be a component (e.g., a chip or a circuit, etc.) for a network device. The sending end device may be a terminal device, or may be a component (e.g., a chip or a circuit) that can be used for the terminal device. As shown in fig. 13, the transmitting side device 1300 may include a processing module 1301 and a transmitting module 1302.
The processing module 1301 is configured to determine a resource unit occupied by a reference signal from a reference signal resource set, where the reference signal resource set includes T × K resource units, the T × K resource units are composed of K consecutive resource units on each of T consecutive symbols of one physical resource block PRB, where one PRB includes N resource units on each of the T consecutive symbols, T, N and K are positive integers, N > K is greater than or equal to 1, T is greater than or equal to 1, the T × K resource units in the T consecutive symbols correspond to at least one port group of the reference signal, each port group of the at least one port group includes at least two ports, and a reference signal corresponding to a port in the at least one port group is orthogonally multiplexed on the T × K resource units.
A sending module 1302, configured to send the reference signal on the T × K resource units.
The processing module 1301 may be implemented by a processor. The transmitting module 1302 may be implemented by a transmitter. The specific functions and advantages of the processing module 1301 and the sending module 1302 may refer to the method shown in fig. 4, and are not described herein again.
In a possible embodiment, a sending end device is further provided, where the sending end device may be a network device or may be a component (e.g., a chip or a circuit) for a network device. The sending end device may be a terminal device, or may be a component (e.g., a chip or a circuit) that can be used for the terminal device. The sending end device may include a transceiver and a processor, and optionally may also include a memory. The transceiver may be configured to implement corresponding functions and operations corresponding to the receiving module and the sending module, and the processor may be configured to implement corresponding functions and operations of the processing module. The memory can be used for storing execution instructions or application program codes, and is controlled by the processor to execute, so as to implement the communication method provided by the above embodiment of the application; and/or may be used to temporarily store some data and instruction information, etc. The memory may exist independently of the processor, in which case the memory may be coupled to the processor via a communication line. In yet another possible design, the memory may be integrated with the processor, and the embodiment of the present application is not limited thereto.
Fig. 14 is a schematic structural diagram of a receiving end device according to an embodiment of the present application. The receiving device may be a network device or may be a component (e.g., a chip or a circuit, etc.) for a network device. The receiving end device may be a terminal device, or may be a component (e.g., a chip or a circuit) that can be used for the terminal device. As shown in fig. 14, the receiving-end device 1400 may include a processing module 1401 and a receiving module 1402.
A processing module 1401, configured to determine resource units occupied by a reference signal from a reference signal resource set, where the reference signal resource set includes T × K resource units, where the T × K resource units are composed of K consecutive resource units on each of T consecutive symbols of one physical resource block PRB, where one PRB includes N resource units on each of the T consecutive symbols, T, N and K are positive integers, N > K is greater than or equal to 1, T is greater than or equal to 1, the T × K resource units in the T consecutive symbols correspond to at least one port group of the reference signal, each port group of the at least one port group includes at least two ports, and reference signals corresponding to ports in the at least one port group are orthogonally multiplexed on the T × K resource units.
A receiving module 1402 configured to receive the reference signal on the T × K resource units.
The processing module 1401 may be implemented by a processor. The receiving module 1402 may be implemented by a receiver. The specific functions and advantages of the processing module 1401 and the receiving module 1402 can refer to the method shown in fig. 4, and are not described herein again.
In a possible embodiment, a receiving device is also provided, and the receiving device may be a network device or may be a component (e.g., a chip or a circuit, etc.) for the network device. The receiving end device may be a terminal device, or may be a component (e.g., a chip or a circuit) that can be used for the terminal device. The receiving end device may include a transceiver and a processor, and optionally, may also include a memory. The transceiver may be configured to implement corresponding functions and operations corresponding to the receiving module and the sending module, and the processor may be configured to implement corresponding functions and operations of the processing module. The memory can be used for storing execution instructions or application program codes, and is controlled by the processor to execute, so as to implement the communication method provided by the above embodiment of the application; and/or may be used to temporarily store some data and instruction information, etc. The memory may exist independently of the processor, in which case the memory may be coupled to the processor via a communication line. In yet another possible design, the memory may be integrated with the processor, and the embodiment of the present application is not limited thereto.
Fig. 15 is a block diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 15, the terminal apparatus includes a processor 1501, a memory 1502, a radio frequency circuit, an antenna, and an input-output device. The processor 1501 may be used to process communication protocols and communication data, and control the terminal device, execute software programs, process data of the software programs, and the like. The memory 1502 is used primarily to store software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminal devices may not have input/output devices.
When data needs to be sent, the processor 1501 outputs a baseband signal to the radio frequency circuit after performing baseband processing on the data to be sent, and the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 15. In an actual end device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.
In the embodiment of the present application, the antenna and the rf circuit having the transceiving function may be regarded as the transceiver 1503 of the terminal device, and the processor having the processing function may be regarded as the processing unit of the terminal device. A transceiver may also be referred to as a transceiver unit, transceiver, transceiving means, etc. A processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Alternatively, a device for implementing a receiving function in the transceiver 1503 may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiver 1503 may be regarded as a transmitting unit, that is, the transceiver 1503 includes a receiving unit and a transmitting unit. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.
The processor 1501, memory 1502 and transceiver 1503 communicate with each other via internal connection paths to transfer control and/or data signals
The method disclosed in the above embodiments of the present invention may be applied to the processor 1501 or implemented by the processor 1501. Processor 1501 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 1501.
The processor described in the embodiments of the present application may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a Random Access Memory (RAM), a flash memory, a read-only memory (ROM), a programmable ROM, an electrically erasable programmable memory, a register, or other storage media that are well known in the art. The storage medium is located in a memory, and a processor reads instructions in the memory and combines hardware thereof to complete the steps of the method.
Optionally, in some embodiments, the memory 1502 may store instructions for performing a method performed by the terminal device, such as the method illustrated in fig. 4. The processor 1501 may execute the instructions stored in the memory 1502 to perform the steps performed by the terminal device in the method shown in fig. 4 in combination with other hardware (e.g., the transceiver 1503), and the specific working process and beneficial effects can be referred to the description in the embodiment shown in fig. 4.
The embodiment of the application also provides a chip, which comprises a transceiver unit and a processing unit. The transceiver unit can be an input/output circuit and a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip. The chip can execute the method of the terminal device side in the above method embodiments.
The embodiment of the present application further provides a computer-readable storage medium, on which instructions are stored, and when the instructions are executed, the method on the terminal device side in the above method embodiment is executed.
The embodiment of the present application further provides a computer program product containing instructions, where the instructions, when executed, perform the method on the terminal device side in the foregoing method embodiment.
Fig. 16 is a block diagram of a network device according to an embodiment of the present invention. The network device 1600 shown in fig. 16 includes: a processor 1601, a memory 1602, and a transceiver 1603.
The processor 1601, the memory 1602 and the transceiver 1603 communicate with each other via internal connections to communicate control and/or data signals.
The method disclosed by the above-mentioned embodiments of the present invention may be applied to the processor 1601 or implemented by the processor 1601. The processor 1601 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the method may be performed by hardware integrated logic circuits or instructions in software form in the processor 1601. The processor 1601 may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a Random Access Memory (RAM), a flash memory, a read-only memory (ROM), a programmable ROM, an electrically erasable programmable memory, a register, or other storage media that are well known in the art. The storage medium is located in a memory 1602, and the processor 1601 reads the instructions in the memory 1602, and performs the steps of the method in combination with hardware thereof.
Optionally, in some embodiments, the memory 1602 may store instructions for performing a method performed by a network device, such as the method illustrated in fig. 4. The processor 1601 may execute the instructions stored in the memory 1602 to perform the steps of the network device in the method shown in fig. 4 in combination with other hardware (e.g., the transceiver 1603), and the specific operation and beneficial effects can be referred to the description in the embodiment shown in fig. 4.
The embodiment of the application also provides a chip, which comprises a transceiver unit and a processing unit. The transceiver unit can be an input/output circuit and a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip. The chip may perform the method performed by the network device side in the above embodiments.
As another form of the present embodiment, there is provided a computer-readable storage medium having stored thereon instructions that, when executed, perform the method on the network device side in the above-described method embodiment.
As another form of the present embodiment, there is provided a computer program product containing instructions that, when executed, perform the method on the network device side in the above-described method embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (32)

1. A method for transmitting a reference signal, comprising:
the sending end equipment determines resource units occupied by reference signals from a reference signal resource set, wherein the reference signal resource set comprises T multiplied by K resource units, the T multiplied by K resource units are composed of K continuous resource units on each symbol of T continuous symbols of a physical resource block PRB, one PRB comprises N resource units on each symbol of the T continuous symbols, T, N and K are positive integers, N > K is larger than or equal to 1, T is larger than or equal to 1, the T multiplied by K resource units in the T continuous symbols correspond to at least two port groups, each port group in the at least two port groups comprises at least two ports, and the reference signals are orthogonally multiplexed on the T multiplied by K resource units, and the method comprises the following steps: the reference signals corresponding to the at least two port groups are orthogonally multiplexed on the T × K resource units, and the reference signal corresponding to the port of each port group is orthogonally multiplexed on the resource unit corresponding to each port group;
transmitting the reference signal on the T × K resource elements.
2. The method of claim 1, wherein ports within the at least two port groups are orthogonally multiplexed over the txk resource units, comprising:
and the reference signals corresponding to the ports in the at least one port group are orthogonally multiplexed on the T multiplied by K resource units in at least one mode of cyclic shift, code division multiplexing, frequency division multiplexing and time division multiplexing of sequences.
3. The method of claim 2, wherein the orthogonal codes in the code division multiplexing are time domain orthogonal spreading codes and/or frequency domain orthogonal spreading codes.
4. The method according to any of claims 1 to 3, wherein there are at least two different values of K, and the orthogonal multiplexing of the reference signals corresponding to the ports in the at least two port groups on the T x K resource units is different.
5. The method according to any of claims 1 to 3, wherein the positions of the K consecutive resource elements are the same as the positions of the K consecutive resource elements occupied by a transmitting device on one symbol of data transmission in one PRB.
6. The method according to any of claims 1 to 3, characterized in that in case T is equal to 1 and K is equal to 3, 4 or 6,
and the reference signals corresponding to the ports in the at least two port groups are orthogonal on the T multiplied by K resource units through cyclic shift and frequency division multiplexing of sequences.
7. The method according to any one of claims 1 to 3, characterized in that, in the case where T is equal to 1 and K is equal to 4 or 6,
and the reference signals corresponding to the ports in the at least two port groups are orthogonal on the T multiplied by K resource units through frequency domain orthogonal spread spectrum codes and frequency division multiplexing.
8. The method according to any one of claims 1 to 3, characterized in that, in the case where T is equal to 2 or 4 and K is equal to 3, 4 or 6,
the reference signals corresponding to the ports in the at least two port groups are on the T × K resource units,
through cyclic shift, frequency division multiplexing and time domain orthogonal spread spectrum code orthogonality of sequences; or the like, or, alternatively,
orthogonalizing by time domain orthogonal spread spectrum codes and frequency division multiplexing; or the like, or, alternatively,
orthogonal by frequency domain orthogonal spread spectrum codes and time division multiplexing; or the like, or, alternatively,
orthogonal by frequency domain orthogonal spreading codes, frequency division multiplexing and time division multiplexing.
9. The method of claim 6, wherein the frequency division multiplexing is frequency division multiplexing with comb teeth of 2 or frequency division multiplexing with comb teeth of 3.
10. The method of claim 7, wherein the frequency domain orthogonal spreading code is a length-2 orthogonal spreading code.
11. The method of claim 8, wherein the time domain orthogonal spreading code or the frequency domain orthogonal spreading code is a length-2 orthogonal spreading code or a length-4 orthogonal spreading code.
12. The method according to any of claims 1 to 3 and 9 to 11, wherein the corresponding resource element locations of the at least two port groups in a first PRB are different from the corresponding resource element locations in a second PRB, the first PRB and the second PRB being two adjacent PRBs occupied by the reference signal.
13. A method for transmitting a reference signal, comprising:
receiving end equipment determines resource units occupied by reference signals from a reference signal resource set, wherein the reference signal resource set comprises T multiplied by K resource units, the T multiplied by K resource units are composed of K continuous resource units on each symbol of T continuous symbols of a physical resource block PRB, wherein one PRB comprises N resource units on each symbol of the T continuous symbols, T, N and K are positive integers, N > K is larger than or equal to 1, T is larger than or equal to 1, the T multiplied by K resource units in the T continuous symbols correspond to at least two port groups, each port group in the at least two port groups comprises at least two ports, and the reference signals are orthogonally multiplexed on the T multiplied by K resource units, and the method comprises the following steps: the reference signals corresponding to the at least two port groups are orthogonally multiplexed on the T × K resource units, and the reference signal corresponding to the port of each port group is orthogonally multiplexed on the resource unit corresponding to each port group;
receiving the reference signal on the T × K resource elements.
14. The method of claim 13, wherein ports within the at least two port groups are orthogonally multiplexed over the txk resource units, comprising:
and the reference signals corresponding to the ports in the at least two port groups are orthogonally multiplexed on the T multiplied by K resource units in at least one mode of cyclic shift, code division multiplexing, frequency division multiplexing and time division multiplexing of sequences.
15. The method of claim 14, wherein the orthogonal codes in the code division multiplexing are time domain orthogonal spreading codes and/or frequency domain orthogonal spreading codes.
16. The method according to any of claims 13 to 15, wherein there are at least two different values of K, and the orthogonal multiplexing of the reference signals corresponding to the ports within the at least two port groups over the txk resource elements is different.
17. The method according to any of claims 13 to 15, wherein the positions of the K consecutive resource elements are the same as the positions of K consecutive resource elements occupied by a transmitting device on one symbol of data transmission in one PRB.
18. The method according to any of claims 13 to 15, wherein in case T is equal to 1 and K is equal to 3, 4 or 6,
reference signals corresponding to ports within the at least two port groups are orthogonal over the T × K resource units by cyclic shift of sequences and frequency division multiplexing.
19. The method according to any of claims 13 to 15, wherein in case T is equal to 1, K is equal to 4 or 6,
reference signals corresponding to ports within the at least two port groups are orthogonal over the T × K resource units by frequency domain orthogonal spreading codes and frequency division multiplexing.
20. The method according to any of claims 13 to 15, characterized in that in case T is equal to 2 or 4 and K is equal to 3, 4 or 6,
reference signals corresponding to ports within the at least two port groups are on the T K resource units,
through cyclic shift, frequency division multiplexing and time domain orthogonal spread spectrum code orthogonality of sequences; or the like, or, alternatively,
orthogonalizing by time domain orthogonal spread spectrum codes and frequency division multiplexing; or the like, or, alternatively,
orthogonal by frequency domain orthogonal spread spectrum codes and time division multiplexing; or the like, or, alternatively,
orthogonal by frequency domain orthogonal spreading codes, frequency division multiplexing and time division multiplexing.
21. The method of claim 18, wherein the frequency division multiplexing is frequency division orthogonal with comb of 2 or frequency division orthogonal with comb of 3.
22. The method of claim 19, wherein the frequency domain orthogonal spreading code is a length-2 orthogonal spreading code or a length-4 orthogonal spreading code.
23. The method of claim 20, wherein the time domain orthogonal spreading code is a length-2 orthogonal spreading code or a length-4 orthogonal spreading code.
24. The method according to any of claims 13-15, 21-23, wherein the corresponding resource element locations of the at least two port groups in a first PRB are different from the corresponding resource element locations in a second PRB, the first PRB and the second PRB being two adjacent PRBs occupied by the reference signal.
25. A communication device comprising means for performing the method of any of claims 1 to 12.
26. A communication device comprising means for performing the method of any of claims 13 to 24.
27. A communication apparatus, characterized in that the communication apparatus comprises: at least one processor and a communication interface for the communication apparatus to interact with other communication apparatus, the program instructions, when executed in the at least one processor, causing the communication apparatus to implement the functionality of the method of any one of claims 1 to 12 on the sender device.
28. A communication apparatus, characterized in that the communication apparatus comprises: at least one processor and a communication interface for the communication apparatus to interact with other communication apparatuses, the program instructions, when executed in the at least one processor, causing the communication apparatus to implement the functions of the method according to any one of claims 13 to 24 on the receiving end device.
29. A computer-readable storage medium, characterized in that the computer-readable storage medium stores program code which, when run on a computer, causes the computer to perform the method according to any one of claims 1 to 12.
30. A computer-readable storage medium, characterized in that the computer-readable storage medium stores program code which, when run on a computer, causes the computer to perform the method of any one of claims 13 to 24.
31. A chip system, characterized in that the chip system comprises at least one processor, which when executed with program instructions causes the functionality of the method according to any one of claims 1 to 12 to be implemented on the sending end device.
32. A chip system, characterized in that the chip system comprises at least one processor, and when program instructions are executed in the at least one processor, the functions of the method according to any one of claims 13 to 24 are implemented on the receiving-end device.
CN201910054751.4A 2019-01-21 2019-01-21 Reference signal transmission method and device Active CN111541526B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201910054751.4A CN111541526B (en) 2019-01-21 2019-01-21 Reference signal transmission method and device
PCT/CN2020/071991 WO2020151531A1 (en) 2019-01-21 2020-01-14 Reference signal transmission method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910054751.4A CN111541526B (en) 2019-01-21 2019-01-21 Reference signal transmission method and device

Publications (2)

Publication Number Publication Date
CN111541526A CN111541526A (en) 2020-08-14
CN111541526B true CN111541526B (en) 2022-02-25

Family

ID=71735512

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910054751.4A Active CN111541526B (en) 2019-01-21 2019-01-21 Reference signal transmission method and device

Country Status (2)

Country Link
CN (1) CN111541526B (en)
WO (1) WO2020151531A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115189845A (en) * 2021-04-06 2022-10-14 维沃移动通信有限公司 PUCCH resource allocation method, apparatus and device
WO2023070547A1 (en) * 2021-10-29 2023-05-04 Oppo广东移动通信有限公司 Wireless communication method, first terminal device and second terminal device
WO2023164948A1 (en) * 2022-03-04 2023-09-07 Oppo广东移动通信有限公司 Wireless communication method and terminal device
CN116916459A (en) * 2022-04-20 2023-10-20 大唐移动通信设备有限公司 Reference signal transmission method, device and storage medium
WO2024065729A1 (en) * 2022-09-30 2024-04-04 Lenovo (Beijing) Limited Method and apparatus for port adaptation indication

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103313273A (en) * 2012-03-13 2013-09-18 中兴通讯股份有限公司 Channel sending method, detection method, base station and terminal
CN107046431A (en) * 2016-02-05 2017-08-15 中兴通讯股份有限公司 Transmission, method of reseptance and the device of information
CN108111279A (en) * 2017-08-21 2018-06-01 中兴通讯股份有限公司 Reference signal transmission, parameter sending method and device, terminal, base station
CN109150429A (en) * 2017-06-15 2019-01-04 电信科学技术研究院 Transmission method, method of reseptance and the device of Phase Tracking reference signal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101959398B1 (en) * 2012-01-25 2019-03-18 삼성전자주식회사 Method and apparatus for transmitting a signal on control channel in a orthogonal frequency division multiplexing communication system
US20140348012A1 (en) * 2013-05-27 2014-11-27 Htc Corporation Small cell communication system and operating method thefeof
US20150003405A1 (en) * 2013-06-26 2015-01-01 Mediatek Inc. Enhanced Broadcast Channel for Primary System Information acquisition in OFDM/OFDMA Systems
CN108282308B (en) * 2017-01-06 2022-10-14 中兴通讯股份有限公司 Method, device and equipment for processing reference signal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103313273A (en) * 2012-03-13 2013-09-18 中兴通讯股份有限公司 Channel sending method, detection method, base station and terminal
CN107046431A (en) * 2016-02-05 2017-08-15 中兴通讯股份有限公司 Transmission, method of reseptance and the device of information
CN109150429A (en) * 2017-06-15 2019-01-04 电信科学技术研究院 Transmission method, method of reseptance and the device of Phase Tracking reference signal
CN108111279A (en) * 2017-08-21 2018-06-01 中兴通讯股份有限公司 Reference signal transmission, parameter sending method and device, terminal, base station

Also Published As

Publication number Publication date
CN111541526A (en) 2020-08-14
WO2020151531A1 (en) 2020-07-30

Similar Documents

Publication Publication Date Title
JP7136423B2 (en) Resource indication method, terminal device and network device
US11239970B2 (en) Reference signal sending method, reference signal receiving method, and communications apparatus
CN111541526B (en) Reference signal transmission method and device
KR102276142B1 (en) DMS instruction and reception method, transmitting end and receiving end
CN110050414B (en) Method for adapting the density of demodulation reference signals
KR20200035300A (en) Method for indicating reference signal configuration information, base station and terminal
US20180367274A1 (en) Method and apparatus for transmitting pilot signal
CN110247749B (en) Resource indication method, network device, apparatus and storage medium
JP2022511201A (en) User equipment and network nodes involved in signal transmission
CN108293251A (en) The system and method for carrying out control and transmission and the reception of data channel using group reference signal
CN106209300B (en) Control information sending method, control information receiving method, transmitter and receiver
EP2584820B1 (en) Terminal device, base station device, communications system, and communications method
EP3186940B1 (en) Transmission method implemented in communication devices and associated communication device
US11101957B2 (en) Reference signal sending method and apparatus
EP3480984A1 (en) Method for transmitting reference signal, related device and communication system
CN111937319B (en) Communication method, communication device and system
CN112311513B (en) DMRS port indication method and device
CN102123014A (en) Method and device for indicating orthogonal cover code (OCC) configuration and frequency hopping configuration
CN110557348B (en) Method and communication device for demodulating data
CN109644169B (en) Signal transmission method, network equipment and terminal equipment
CN112153690B (en) Communication method and communication device
CN117793905A (en) Single carrier communication method and communication device
KR20160131857A (en) Method and apparatus for transmitting downlink reference signal

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant