WO2026002145A1 - 一种参考信号的传输方法及相关装置 - Google Patents

一种参考信号的传输方法及相关装置

Info

Publication number
WO2026002145A1
WO2026002145A1 PCT/CN2025/103994 CN2025103994W WO2026002145A1 WO 2026002145 A1 WO2026002145 A1 WO 2026002145A1 CN 2025103994 W CN2025103994 W CN 2025103994W WO 2026002145 A1 WO2026002145 A1 WO 2026002145A1
Authority
WO
WIPO (PCT)
Prior art keywords
ports
time units
reference signal
resource
multiplexed
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.)
Pending
Application number
PCT/CN2025/103994
Other languages
English (en)
French (fr)
Inventor
颜矛
刘凤威
王晓娜
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
Publication of WO2026002145A1 publication Critical patent/WO2026002145A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0457—Variable allocation of band or rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/231—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling

Definitions

  • This application relates to the field of communications, and more particularly to a method and apparatus for transmitting a reference signal.
  • Wireless communication can be a transmission communication between two or more communication devices that does not propagate through conductors or cables.
  • the two or more communication devices include network devices and terminal devices, or the two or more communication devices include different terminal devices.
  • MIMO multi-input multi-output
  • This application provides a method and related apparatus for transmitting a reference signal, which improves the transmission performance of the reference signal.
  • the first aspect of this application provides a method for transmitting a reference signal.
  • This method is executed by a first communication device, which may be a communication equipment (such as a terminal device), or a component of the communication equipment (e.g., a circuit or chip responsible for communication functions, such as a modem chip (also known as a baseband chip), a system-on-chip (SoC) chip, such as an SoC chip containing a modem core, or a system-in-package (SIP) chip), or a logic module or software capable of implementing all or part of the functions of the communication equipment.
  • the first communication device receives first information, which is used to configure a first resource for carrying the reference signal; wherein the first resource includes K time units, where K is an integer greater than 1; and the first communication device receives the reference signal on the first resource.
  • At least two time units have different numbers of multiplexed ports within the K time units.
  • the first information received by the first communication device is used to configure the first resource. Subsequently, the first communication device can receive reference signals on the first resource. Specifically, in the K time units included in the first resource, at least two time units have different numbers of multiplexed ports. In this way, the first resource can be used to transmit reference signals with at least two different numbers of multiplexed ports, improving the multiplexing efficiency of the reference signal transmission resources and thus enhancing the transmission performance of the reference signal.
  • the number of first communication devices can be one or more, wherein all one or more first communication devices are capable of receiving reference signals through the first resource.
  • different first communication devices can receive reference signals with their respective configured (or desired) number of multiplexing ports on the first resource, which can match channels with different numbers of ports, improve the multiplexing efficiency of the reference signal transmission resources, and thus improve the transmission performance of the reference signal.
  • the first communication device can measure the reference signal to obtain the measurement result, and indicate the measurement result by sending the second information, so that the receiver of the second information can communicate with the recipient based on the measurement result, thereby improving the communication quality.
  • a second aspect of this application provides a method for transmitting a reference signal.
  • This method is executed by a second communication device, which may be a communication device (such as a terminal device or network device), or a component of the communication device (e.g., a circuit or chip responsible for communication functions, such as a modem chip (also known as a baseband chip), a SoC chip, such as an SoC chip containing a modem core, or a SIP chip, etc.), or a logic module or software capable of implementing all or part of the functions of the communication device.
  • a communication device such as a terminal device or network device
  • a component of the communication device e.g., a circuit or chip responsible for communication functions, such as a modem chip (also known as a baseband chip), a SoC chip, such as an SoC chip containing a modem core, or a SIP chip, etc.
  • a logic module or software capable of implementing all or part of the functions of the communication device.
  • the second communication device transmits first information, which is used to configure a first resource, the first resource being used to carry the reference signal; wherein the first resource includes K time units, where K is an integer greater than 1; the second communication device transmits the reference signal on the first resource.
  • At least two time units have different numbers of multiplexed ports within the K time units.
  • the first information sent by the second communication device is used to configure the first resource.
  • the second communication device can transmit reference signals on the first resource.
  • the K time units included in the first resource at least two time units have different numbers of multiplexed ports.
  • the first resource can be used to transmit reference signals with at least two different numbers of multiplexed ports, improving the multiplexing efficiency of the reference signal transmission resources and thus enhancing the transmission performance of the reference signal.
  • the number of first communication devices can be one or more, wherein all one or more first communication devices are capable of receiving reference signals through the first resource.
  • different first communication devices can receive reference signals with their respective configured (or desired) number of multiplexing ports on the first resource, which can match channels with different numbers of ports, improve the multiplexing efficiency of the reference signal transmission resources, and thus improve the transmission performance of the reference signal.
  • each time unit in the K time units can be one or more orthogonal frequency division multiplexing (OFDM) symbols, one or more time slots, one or more subframes, or one or more frames, etc.
  • OFDM orthogonal frequency division multiplexing
  • time lengths corresponding to different time units can be the same or different, and this is not limited here.
  • each of the K time units (or any one of the time units, or at least one of the time units) is one OFDM symbol, two OFDM symbols, three OFDM symbols, or four OFDM symbols.
  • the number of multiplexed ports in any two time units can be different. In this way, it is possible to transmit reference signals with as many multiplexed ports as possible within the K time units contained in the first resource, and further improve the multiplexing efficiency of the reference signal transmission resources.
  • one or more OFDM symbols in any one (or at least one) time unit may be continuous or discontinuous in the time domain; this is not limited here.
  • different time units may be separated by one or more OFDM symbols in the time domain, or they may be adjacent in the time domain (i.e., the different time units are not separated by other OFDM symbols in the time domain, or the number of OFDM symbols separated by the different time units in the time domain is 0).
  • At least two time units have the same number of multiplexed ports, or any two time units have the same number of multiplexed ports.
  • the number of multiplexed ports for each of the K time units is 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256 or 512.
  • the total number of multiplexed ports for K time units is 16, 32, 48, 64, 96, 128, 192, or 256.
  • the total number of multiplexed ports for K time units is 128, 192, 256, 384, 512, 768, or 1024.
  • At least two time units have different durations (e.g., at least two time units occupy 1 and 2 symbols, or at least two time units occupy 2 and 4 symbols, etc.).
  • At least two time units have different numbers of frequency domain units (e.g., at least two time units occupy 2 and 4 frequency domain units, or at least two time units occupy 4 and 8 frequency domain units, etc.).
  • At least two time units correspond to different code division multiplexing (CDM) groups (e.g., the size of the CDM group corresponding to at least two time units includes 2 and 4, or the size of the CDM group corresponding to at least two time units includes 4 and 8, etc.).
  • CDM code division multiplexing
  • At least two time units carry reference signal sequences with different cyclic shifts (CS).
  • the frequency domain spacing of resource or sequence mappings is different in at least two time units.
  • the method further includes: the second communication device receiving second information, the second information being used to indicate the measurement result of the reference signal.
  • the first communication device after the first communication device receives the reference signal on the first resource, the first communication device can measure the reference signal to obtain the measurement result, and indicate the measurement result to the second communication device through the second information sent, so that the second communication device can communicate with it based on the measurement result, thereby improving the communication quality.
  • the first information includes at least one of the following:
  • the first indication information indicates the multiplexing port information for each of the K time units; wherein, the multiplexing port information is used to indicate at least one of the following: time domain code group, frequency domain code group, frequency domain interval, frequency domain start position, and number of multiplexing ports;
  • the second indication information indicates the number of symbols contained in each of the K time units
  • the third indication information indicates the total number of multiplexed ports for the K time units.
  • the first information used to configure the first resource can be implemented in the above multiple ways to improve the flexibility of the scheme implementation.
  • the total number of multiplexed ports for the K time units is P ⁇ sub>RS ⁇ /sub>, where P ⁇ sub> RS ⁇ /sub> ports include P ⁇ sub>0 ⁇ /sub> ports multiplexed in the 1st time unit... P ⁇ sub>K-1 ⁇ /sub> ports multiplexed in the Kth time unit, and P ⁇ sub>0 ⁇ /sub>...P ⁇ sub>K-1 ⁇ /sub> are all greater than 1; wherein the mapping order between the P ⁇ sub>RS ⁇ /sub> ports and the K time units is as follows:
  • the first time unit reuses the P0 ports, the first one of which is the first one.
  • the first port ...the P K-1 ports multiplexed in the Kth time unit.
  • the last port of port P0 which is multiplexed in the first time unit.
  • the port ...the last port in the P K-1 port multiplexed in the Kth time unit.
  • the total number of multiplexed ports in the K time units included in the first resource is P RS
  • the mapping order of the P RS ports to the K time units satisfies the above process, so that the mapping order of the first half port and the second half port of any time unit in the K time units is staggered (for example, the polarization direction corresponding to the first half port of any time unit in the K time units is different from the polarization direction corresponding to the second half port), so as to be compatible with communication devices with different communication capabilities (for example, different numbers of communication ports).
  • the K time units satisfy at least one of the following:
  • the i-th time unit in the K time units reuses the P i ports in the later...
  • the mapping order of the ports is based on the first Pj ports multiplexed in the j-th time unit of the K time units.
  • i and j are any one from 1 to K, and P i and P j are both greater than 1 (or, in K time units, the mapping order of the second half of the multiplexed ports in any time unit is after the mapping order of the first half of the multiplexed ports in any time unit).
  • the mapping order of the ports is based on the order of the first P i ports multiplexed in the i-th time unit of the K time units.
  • the mapping order of the ports is after (or, in K time units, the mapping order of the first half of the multiplexed ports of any time unit is after the mapping order of the first half of the multiplexed ports of the next adjacent time unit of that time unit);
  • the (i+1)th time unit in the K time units reuses the P ⁇ sub> i+1 ⁇ /sub> port.
  • the mapping order of the ports is determined by the last port in the P ⁇ sub>i ⁇ /sub> ports multiplexed in the i-th time unit of the K time units.
  • the mapping order of the ports follows (or, in K time units, the mapping order of the second half of the multiplexed ports of any time unit is located after the mapping order of the second half of the multiplexed ports of the next adjacent time unit of that time unit).
  • the mapping order of the ports multiplexed in the i-th time unit among the K time units satisfies at least one of the above, so that the mapping order of the first half ports and the second half ports of the same time unit among the K time units is staggered (for example, the polarization direction corresponding to the first half port of any time unit among the K time units is different from the polarization direction corresponding to the second half port), so as to be compatible with communication devices with different communication capabilities (for example, different numbers of communication ports).
  • the number of multiplexed ports in the k-th time unit of the K time units is P ⁇ sub>k ⁇ /sub>, where k ranges from 0 to K-1, and P ⁇ sub> k ⁇ /sub> is greater than 1; wherein, among the P ⁇ sub>k ⁇ /sub> ports, at least two ports have different polarization directions.
  • the P ⁇ sub>k ⁇ /sub> ports ports 0 to...
  • the polarization direction is the first polarization direction
  • the polarization direction is the second polarization direction.
  • At least two ports have different polarization directions, so that the polarization direction of the first half of the ports in any time unit of the K time units is different from the polarization direction of the second half of the ports, so as to be compatible with communication devices with different communication capabilities (e.g., different numbers of communication ports).
  • the reference signal is generated based on the ZC (Zadoff-Chu) sequence, or the reference signal is generated based on the ZC sequence and the Gold sequence, or the reference signal is generated based on a cyclic shift sequence.
  • the reference signal transmitted on the first resource can be generated based on a ZC sequence, or based on the ZC sequence and a Gold sequence, or the reference signal can be generated based on a cyclic shift sequence.
  • the reference signal transmitted on the first resource is at least generated based on a ZC sequence. This leverages the constant envelope characteristic and cyclic shift characteristic of the ZC sequence to identify multiple ports within a single reception detection, thereby reducing the detection complexity at the receiver.
  • the reference signal (or the sequence of the reference signal) satisfies:
  • N is the number of frequency domains mapped
  • N ZC is the sequence length
  • j is the imaginary unit
  • u is the root sequence index
  • CS is the cyclic shift value
  • r(m) represents the Gold sequence.
  • the reference signal or the sequence of the reference signal can be a ZC sequence.
  • a third aspect of this application provides a method for transmitting a reference signal.
  • This method is executed by a first communication device, which may be a communication equipment (such as a terminal device or network device), or a component of the communication equipment (e.g., a circuit or chip responsible for communication functions, such as a modem chip (also known as a baseband chip), a SoC chip, such as an SoC chip containing a modem core, or a SIP chip), or a logic module or software capable of implementing all or part of the functions of the communication equipment.
  • a communication equipment such as a terminal device or network device
  • a component of the communication equipment e.g., a circuit or chip responsible for communication functions, such as a modem chip (also known as a baseband chip), a SoC chip, such as an SoC chip containing a modem core, or a SIP chip
  • a logic module or software capable of implementing all or part of the functions of the communication equipment.
  • the first communication device receives third information for configuring a second resource, which is used to carry the reference signal; wherein the first resource includes K time units, where K is an integer greater than 1; the first communication device receives the reference signal on the second resource. Furthermore, any one of the following methods one to four is satisfied:
  • Method 1 The total number of multiplexed ports for the K time units is P ⁇ sub>RS ⁇ /sub>, where P ⁇ sub> RS ⁇ /sub> ports include P ⁇ sub>0 ⁇ /sub> ports multiplexed in the 1st time unit... P ⁇ sub>K-1 ⁇ /sub> ports multiplexed in the Kth time unit, and P ⁇ sub> 0 ⁇ /sub> ...P ⁇ sub> K-1 ⁇ /sub> are all greater than 1; the mapping order between the P ⁇ sub> RS ⁇ /sub> ports and the K time units is as follows: the first P ⁇ sub>0 ⁇ /sub> ports multiplexed in the 1st time unit...
  • the first port ...the P K-1 ports multiplexed in the Kth time unit.
  • the last port of port P0 which is multiplexed in the first time unit.
  • the port ...the last of the P K-1 ports multiplexed in the Kth time unit.
  • Method 2 The K time units satisfy at least one of the following:
  • the i-th time unit in the K time units reuses the P i ports in the later...
  • the mapping order of the ports is based on the first Pj ports multiplexed in the j-th time unit of the K time units.
  • i and j are any one from 1 to K, and P i and P j are both greater than 1;
  • the mapping order of the ports is based on the order of the first P i ports multiplexed in the i-th time unit of the K time units.
  • the (i+1)th time unit in the K time units reuses the P ⁇ sub> i+1 ⁇ /sub> port.
  • the mapping order of the ports is determined by the last port in the P ⁇ sub>i ⁇ /sub> ports multiplexed in the i-th time unit of the K time units. The mapping order of the ports is then determined.
  • Method 3 The number of multiplexed ports in the k-th time unit of the K time units is Pk , where k ranges from 0 to K-1, and Pk is greater than 1;
  • At least two ports have different polarization directions.
  • Method 4 Among the Pk ports, port 0 to port 1 The polarization direction is the first polarization direction, and the port To port The polarization direction is the second polarization direction.
  • the total number of multiplexed ports of the K time units included in the second resource is P RS
  • the mapping order of the P RS ports to the K time units satisfies the above process, so that the mapping order of the first half port and the second half port of any time unit in the K time units is staggered (for example, the polarization direction corresponding to the first half port of any time unit in the K time units is different from the polarization direction corresponding to the second half port), so as to be compatible with communication devices with different communication capabilities (for example, different numbers of communication ports).
  • the mapping order of the ports multiplexed in the i-th time unit among the K time units satisfies at least one of the above, so that the mapping order of the first half of the ports and the second half of the ports in the same time unit among the K time units is staggered (for example, the polarization direction corresponding to the first half of the port in any time unit among the K time units is different from the polarization direction corresponding to the second half of the port), so as to be compatible with communication devices with different communication capabilities (for example, different numbers of communication ports).
  • At least two ports have different polarization directions, so that the polarization direction of the first half of the ports in any time unit of K time units is different from the polarization direction of the second half of the ports, so as to be compatible with communication devices with different communication capabilities (e.g., different numbers of communication ports).
  • a fourth aspect of this application provides a method for transmitting a reference signal.
  • This method is executed by a second communication device, which may be a communication device (such as a terminal device or network device), or a component of the communication device (e.g., a circuit or chip responsible for communication functions, such as a modem chip (also known as a baseband chip), a SoC chip, such as an SoC chip containing a modem core, or a SIP chip, etc.), or a logic module or software capable of implementing all or part of the functions of the communication device.
  • the second communication device transmits third information for configuring a second resource, which is used to carry the reference signal; wherein the first resource includes K time units, where K is an integer greater than 1; the second communication device transmits the reference signal on the second resource.
  • Method 1 The total number of multiplexed ports for the K time units is P ⁇ sub>RS ⁇ /sub>, where P ⁇ sub> RS ⁇ /sub> ports include P ⁇ sub>0 ⁇ /sub> ports multiplexed in the 1st time unit... P ⁇ sub>K-1 ⁇ /sub> ports multiplexed in the Kth time unit, and P ⁇ sub>0 ⁇ /sub> ...P ⁇ sub> K-1 ⁇ /sub> ports are all greater than 1.
  • the mapping order between the P ⁇ sub> RS ⁇ /sub> ports and the K time units is as follows: the first... The first port...the P K-1 ports multiplexed in the Kth time unit. The last port of port P0 , which is multiplexed in the first time unit. The port...the last port in the P K-1 port multiplexed in the Kth time unit. One port.
  • Method 2 The K time units satisfy at least one of the following:
  • the i-th time unit in the K time units reuses the P i ports in the later...
  • the mapping order of the ports is based on the first Pj ports multiplexed in the j-th time unit of the K time units.
  • i and j are any one from 1 to K, and P i and P j are both greater than 1 (or, in K time units, the mapping order of the second half of the multiplexed ports in any time unit is after the mapping order of the first half of the multiplexed ports in any time unit).
  • the mapping order of the ports is based on the order of the first P i ports multiplexed in the i-th time unit of the K time units.
  • the mapping order of the ports is after (or, in K time units, the mapping order of the first half of the multiplexed ports of any time unit is after the mapping order of the first half of the multiplexed ports of the next adjacent time unit of that time unit);
  • the (i+1)th time unit in the K time units reuses the P ⁇ sub> i+1 ⁇ /sub> port.
  • the mapping order of the ports is determined by the order of the ports in the i-th time unit of the K time units, where the last port in the P ⁇ sub>i ⁇ /sub> port is multiplexed.
  • the mapping order of the ports follows (or, in K time units, the mapping order of the second half of the multiplexed ports of any time unit is located after the mapping order of the second half of the multiplexed ports of the next adjacent time unit of that time unit).
  • Method 3 The number of multiplexed ports in the kth time unit of K time units is Pk , where k ranges from 0 to K-1, and Pk is greater than 1; among the Pk ports, at least two ports have different polarization directions.
  • Method 4 The number of multiplexed ports in the k-th time unit out of K time units is P ⁇ sub>k ⁇ /sub> , where k ranges from 0 to K-1, and P ⁇ sub>k ⁇ /sub> is greater than 1; among the P ⁇ sub>k ⁇ /sub> ports, ports 0 to 1 are...
  • the polarization direction is the first polarization direction, and the port To port The polarization direction is the second polarization direction.
  • the total number of multiplexed ports of the K time units included in the second resource is P RS
  • the mapping order of the P RS ports to the K time units satisfies the above process, so that the mapping order of the first half port and the second half port of any time unit in the K time units is staggered (for example, the polarization direction corresponding to the first half port of any time unit in the K time units is different from the polarization direction corresponding to the second half port), so as to be compatible with communication devices with different communication capabilities (for example, different numbers of communication ports).
  • the mapping order of the ports multiplexed in the i-th time unit among the K time units satisfies at least one of the above, so that the mapping order of the first half of the ports and the second half of the ports in the same time unit among the K time units is staggered (for example, the polarization direction corresponding to the first half of the port in any time unit among the K time units is different from the polarization direction corresponding to the second half of the port), so as to be compatible with communication devices with different communication capabilities (for example, different numbers of communication ports).
  • At least two ports have different polarization directions, so that the polarization direction of the first half of the ports in any time unit of K time units is different from the polarization direction of the second half of the ports, so as to be compatible with communication devices with different communication capabilities (e.g., different numbers of communication ports).
  • the reference signal is generated based on the ZC sequence, or the reference signal is generated based on the ZC sequence and the Gold sequence, or the reference signal is generated based on a cyclic shift sequence.
  • the reference signal transmitted on the first resource can be generated based on a ZC sequence, or based on the ZC sequence and a Gold sequence, or the reference signal can be generated based on a cyclic shift sequence.
  • the reference signal transmitted on the first resource is at least generated based on a ZC sequence. This leverages the constant envelope characteristic and cyclic shift characteristic of the ZC sequence to identify multiple ports within a single reception detection, thereby reducing the detection complexity at the receiver.
  • the reference signal (or the sequence of the reference signal) satisfies:
  • N is the number of frequency domains mapped
  • N ZC is the sequence length
  • j is the imaginary unit
  • u is the root sequence index
  • CS is the cyclic shift value
  • r(m) represents the Gold sequence.
  • the reference signal or the sequence of the reference signal can be a ZC sequence.
  • a fifth aspect of this application provides a method for transmitting a reference signal, which is executed by a first communication device.
  • the first communication device may be a communication device (such as a terminal device or network device), or it may be a component of the communication device (e.g., a circuit or chip responsible for communication functions, such as a modem chip (also known as a baseband chip), a SoC chip, such as an SoC chip containing a modem core, or a SIP chip), or it may be a logic module or software capable of implementing all or part of the functions of the communication device.
  • a modem chip also known as a baseband chip
  • SoC chip such as an SoC chip containing a modem core
  • SIP chip a logic module or software capable of implementing all or part of the functions of the communication device.
  • the first communication device receives fourth information for configuring a third resource, which is used to carry the reference signal; wherein the reference signal is generated based on a ZC sequence, or the reference signal is generated based on the ZC sequence and a Gold sequence, or the reference signal is generated based on a cyclic shift sequence; the first communication device receives the reference signal on the third resource.
  • the reference signal transmitted on the third resource can be generated based on a ZC sequence, or based on the ZC sequence and a Gold sequence, or the reference signal can be generated based on a cyclic shift sequence.
  • the above process ensures that the reference signal transmitted on the third resource is at least generated based on a ZC sequence. This leverages the constant envelope characteristic and cyclic shift characteristic of the ZC sequence to identify multiple ports within a single reception detection, thereby reducing the detection complexity at the receiver.
  • a sixth aspect of this application provides a method for transmitting a reference signal, which is executed by a second communication device.
  • the second communication device can be a communication device (such as a terminal device or network device), or it can be a component of the communication device (e.g., a circuit or chip responsible for communication functions, such as a modem chip (also known as a baseband chip), a SoC chip, such as an SoC chip containing a modem core, or a SIP chip, etc.), or it can be a logic module or software capable of implementing all or part of the functions of the communication device.
  • a communication device such as a terminal device or network device
  • a component of the communication device e.g., a circuit or chip responsible for communication functions, such as a modem chip (also known as a baseband chip), a SoC chip, such as an SoC chip containing a modem core, or a SIP chip, etc.
  • a logic module or software capable of implementing all or part of the functions
  • the second communication device sends fourth information for configuring a third resource, which is used to carry the reference signal; wherein the reference signal is generated based on a ZC sequence, or the reference signal is generated based on the ZC sequence and a Gold sequence, or the reference signal is generated based on a cyclic shift sequence; the second communication device transmits the reference signal on the third resource.
  • the reference signal transmitted on the third resource can be generated based on a ZC sequence, or based on the ZC sequence and a Gold sequence, or the reference signal can be generated based on a cyclic shift sequence.
  • the above process ensures that the reference signal transmitted on the third resource is at least generated based on a ZC sequence. This leverages the constant envelope characteristic and cyclic shift characteristic of the ZC sequence to identify multiple ports within a single reception detection, thereby reducing the detection complexity at the receiver.
  • a seventh aspect of this application provides a method for transmitting a reference signal.
  • This method is executed by a first communication device, which may be a communication equipment (such as a terminal device or network device), or a component of the communication equipment (e.g., a circuit or chip responsible for communication functions, such as a modem chip (also known as a baseband chip), a SoC chip, such as an SoC chip containing a modem core, or a SIP chip), or a logic module or software capable of implementing all or part of the functions of the communication equipment.
  • the first communication device generates a reference signal based on a ZC sequence, or based on the ZC sequence and a Gold sequence, or based on a cyclic shift sequence; the first communication device then transmits the reference signal.
  • the reference signal can be generated based on a ZC sequence, or based on the ZC sequence and a Gold sequence, or based on a cyclic shift sequence.
  • the reference signal transmitted on the third resource in the above process is at least generated based on a ZC sequence. This leverages the constant envelope and cyclic shift characteristics of the ZC sequence to identify multiple ports in a single reception detection, thereby reducing the detection complexity at the receiver.
  • An eighth aspect of this application provides a method for transmitting a reference signal, which is performed by a second communication device.
  • the second communication device can be a communication device (such as a terminal device or network device), or it can be a component of the communication device (e.g., a circuit or chip responsible for communication functions, such as a modem chip (also known as a baseband chip), a SoC chip, such as an SoC chip containing a modem core, or a SIP chip, etc.), or it can be a logic module or software capable of implementing all or part of the functions of the communication device.
  • the second communication device receives a reference signal generated based on a ZC sequence, or the reference signal generated based on the ZC sequence and a Gold sequence, or the reference signal generated based on a cyclic shift sequence.
  • the reference signal transmitted on the third resource can be generated based on a ZC sequence, or based on the ZC sequence and a Gold sequence, or the reference signal can be generated based on a cyclic shift sequence.
  • the above process ensures that the reference signal transmitted on the third resource is at least generated based on a ZC sequence. This leverages the constant envelope characteristic and cyclic shift characteristic of the ZC sequence to identify multiple ports within a single reception detection, thereby reducing the detection complexity at the receiver.
  • the reference signal (or a sequence of such reference signals) satisfies:
  • N is the number of frequency domains mapped
  • N ZC is the sequence length
  • j is the imaginary unit
  • u is the root sequence index
  • CS is the cyclic shift value
  • r(m) represents the Gold sequence.
  • the reference signal or the sequence of the reference signal can be a ZC sequence.
  • the ninth aspect of this application provides a communication device, which is a first communication device, comprising a transceiver unit and a processing unit; the transceiver unit is used to receive first information, the first information being used to configure a first resource, the first resource being used to carry a reference signal; wherein the first resource includes K time units, K being an integer greater than 1; the processing unit is used to control the transceiver unit to receive the reference signal on the first resource.
  • the constituent modules of the communication device can also be used to perform the steps executed in various possible implementations of the first aspect and achieve the corresponding technical effects.
  • the constituent modules of the communication device can also be used to perform the steps executed in various possible implementations of the first aspect and achieve the corresponding technical effects.
  • the tenth aspect of this application provides a communication device, which is a second communication device, comprising a transceiver unit and a processing unit; the processing unit is used to determine first information; the transceiver unit is used to transmit the first information, the first information being used to configure a first resource, the first resource being used to carry a reference signal; wherein the first resource includes K time units, K being an integer greater than 1; the transceiver unit is further used to transmit the reference signal on the first resource.
  • the constituent modules of the communication device can also be used to perform the steps executed in various possible implementations of the second aspect and achieve the corresponding technical effects.
  • the second aspect please refer to the second aspect, which will not be repeated here.
  • the eleventh aspect of this application provides a communication device, which is a first communication device, comprising a transceiver unit and a processing unit; the transceiver unit is used to receive third information, the third information being used to configure a second resource, the second resource being used to carry a reference signal; wherein, the first resource comprises K time units, K being an integer greater than 1; the processing unit is used to control the transceiver unit to receive the reference signal on the second resource.
  • the constituent modules of the communication device can also be used to execute the steps performed in various possible implementations of the third aspect and achieve the corresponding technical effects.
  • the third aspect please refer to the third aspect, which will not be repeated here.
  • the twelfth aspect of this application provides a communication device, which is a second communication device, comprising a transceiver unit and a processing unit; the processing unit is used to determine third information; the transceiver unit is used to transmit the third information, which is used to configure a second resource, which is used to carry a reference signal; wherein the first resource includes K time units, where K is an integer greater than 1; the transceiver unit is also used to transmit the reference signal on the second resource.
  • the constituent modules of the communication device can also be used to perform the steps executed in various possible implementations of the fourth aspect and achieve the corresponding technical effects, all of which can be referred to the fourth aspect and will not be repeated here.
  • the thirteenth aspect of this application provides a communication device, which is a first communication device, comprising a transceiver unit and a processing unit; the transceiver unit is used to receive fourth information, the fourth information being used to configure a third resource, the third resource being used to carry a reference signal; wherein the reference signal is generated based on a ZC sequence, or the reference signal is generated based on the ZC sequence and a Gold sequence, or the reference signal is generated based on a cyclic shift sequence; the processing unit is used to control the transceiver unit to receive the reference signal on the third resource.
  • the constituent modules of the communication device can also be used to perform the steps executed in various possible implementations of aspect five and achieve the corresponding technical effects, all of which can be referred to aspect five for details, and will not be repeated here.
  • the fourteenth aspect of this application provides a communication device, which is a second communication device, comprising a transceiver unit and a processing unit; the processing unit is used to determine fourth information; the transceiver unit is used to transmit the fourth information, which is used to configure a third resource, the third resource being used to carry a reference signal; wherein the reference signal is generated based on a ZC sequence, or, the reference signal is generated based on the ZC sequence and a Gold sequence, or, the reference signal is generated based on a cyclic shift sequence; the transceiver unit is further used to transmit the reference signal on the third resource.
  • the constituent modules of the communication device can also be used to perform the steps executed in various possible implementations of the sixth aspect and achieve the corresponding technical effects, all of which can be referred to the sixth aspect, and will not be repeated here.
  • the fifteenth aspect of this application provides a communication device, which is a first communication device, comprising a transceiver unit and a processing unit; the processing unit is used to generate a reference signal, which is generated based on a ZC sequence, or the reference signal is generated based on the ZC sequence and a Gold sequence, or the reference signal is generated based on a cyclic shift sequence; the transceiver unit is used to transmit the reference signal.
  • a communication device which is a first communication device, comprising a transceiver unit and a processing unit; the processing unit is used to generate a reference signal, which is generated based on a ZC sequence, or the reference signal is generated based on the ZC sequence and a Gold sequence, or the reference signal is generated based on a cyclic shift sequence; the transceiver unit is used to transmit the reference signal.
  • the constituent modules of the communication device can also be used to perform the steps executed in various possible implementations of aspect 7 and achieve the corresponding technical effects, all of which can be referred to aspect 7 for details, and will not be repeated here.
  • the sixteenth aspect of this application provides a communication device, which is a second communication device, comprising a transceiver unit and a processing unit; the transceiver unit is used to receive a reference signal, which is generated based on a ZC sequence, or, which is generated based on the ZC sequence and a Gold sequence, or, which is generated based on a cyclic shift sequence.
  • the constituent modules of the communication device can also be used to perform the steps executed in various possible implementations of the eighth aspect and achieve the corresponding technical effects, all of which can be referred to the eighth aspect, and will not be repeated here.
  • the seventeenth aspect of this application provides a communication device including at least one processor for executing a computer program or instructions to enable the communication device to implement the method described in any possible implementation of any of the first to eighth aspects.
  • the communication device may include a memory or an external memory for storing the aforementioned computer program or instructions.
  • the eighteenth aspect of this application provides a communication device including at least one logic circuit and an input/output interface; the logic circuit is used to perform the method as described in any one of the possible implementations of the first to eighth aspects described above.
  • the nineteenth aspect of this application provides a communication system, which includes the first communication device and the second communication device described above.
  • the twentieth aspect of this application provides a computer-readable storage medium for storing one or more computer-executable instructions, which, when executed by a processor, perform the method as described in any possible implementation of any of the first to eighth aspects described above.
  • the twenty-first aspect of this application provides a computer program product (or computer program) that, when executed by a processor, allows the processor to perform the method described in any possible implementation of any of the first to eighth aspects described above.
  • the twenty-second aspect of this application provides a chip system including at least one processor for supporting a communication device in implementing the method described in any possible implementation of any of the first to eighth aspects.
  • the chip system may further include a memory for storing program instructions and data necessary for the communication device.
  • the chip system may be composed of chips or may include chips and other discrete devices.
  • the chip system may also include interface circuitry that provides program instructions and/or data to the at least one processor.
  • FIG. 1 is a schematic diagram of the communication system involved in this application.
  • FIG. 2 is a schematic diagram of the transmission and reception process of the reference signal involved in this application;
  • FIG. 3 is a schematic diagram of the time-frequency domain resources carrying the reference signal involved in this application.
  • Figure 4 is a schematic diagram of a method for transmitting a reference signal provided in this application.
  • FIGS 5a and 5b are another schematic diagram of the time-frequency domain resources carrying reference signals provided in this application.
  • FIGS. 6a, 6b, 6c, and 6d are some schematic diagrams of the time-frequency domain resources carrying reference signals provided in this application;
  • FIG. 7 is another schematic diagram of the method for transmitting the reference signal provided in this application.
  • FIG. 8 is another schematic diagram of the reference signal transmission method provided in this application.
  • FIG. 9 is another schematic diagram of the transmission method of the reference signal provided in this application.
  • FIG. 10 is a schematic diagram of the communication device provided in this application.
  • FIG 11 is another schematic diagram of the communication device provided in this application.
  • Figure 12 is another schematic diagram of the communication device provided in this application.
  • Figure 13 is another schematic diagram of the communication device provided in this application.
  • Configuration and Pre-configuration In this application, both configuration and pre-configuration are used.
  • Configuration refers to the process by which network devices such as base stations or servers send configuration information or parameter values to the terminal via messages or signaling, so that the terminal can determine the communication parameters or resources for transmission based on these values or information.
  • Pre-configuration is similar to configuration. It can be a method by which network devices such as base stations or servers send parameter information or values to the terminal via a communication link or carrier; it can also be a method by defining the corresponding parameters or parameter values in a standard, or by setting the relevant parameters or values in the terminal device in advance. This application does not limit this method. Furthermore, these values and parameters can be changed or updated.
  • “for indicating” can include for direct indication and for indirect indication.
  • indication information When a certain indication information is described as indicating A, it can be understood that the indication information carries A, directly indicates A or indirectly indicates A.
  • the information indicated by the instruction information is called the information to be instructed.
  • the information to be instructed there are many ways to instruct the information to be instructed. For example, it can be implemented through direct instruction, such as through the information to be instructed itself or its index. It can also be implemented indirectly by instructing other information, where there is a relationship between the other information and the information to be instructed. Alternatively, only a part of the information to be instructed can be indicated, while the other parts are known or pre-agreed upon.
  • the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various pieces of information, thereby reducing instruction overhead to some extent.
  • a pre-agreed e.g., protocol-defined
  • the information to be instructed can be sent as a whole or divided into multiple sub-information messages, and the sending period and/or timing of these sub-information messages can be the same or different.
  • This application does not limit the specific sending method.
  • the sending period and/or timing of these sub-information messages can be predefined, for example, according to a protocol, or configured by the transmitting device by sending configuration information to the receiving device.
  • This configuration information can include, for example, but not limited to, one or a combination of at least two of radio resource control (RRC) signaling, media/medium access control (MAC) layer signaling, and physical layer signaling.
  • RRC radio resource control
  • MAC media/medium access control
  • MAC layer signaling includes, for example, a MAC control element (CE);
  • DCI downlink control information
  • Reference signal also known as pilot signal.
  • estimating the uplink or downlink channel is essential for transmitting and receiving data, obtaining system synchronization and feedback channel information.
  • Channel estimation refers to the process of reconstructing or recovering the received signal to compensate for signal distortion caused by channel fading and noise fading. It uses reference signals known to the transmitter and receiver to track the time and frequency domain changes of the channel. These reference signals are distributed across different resource elements (REs) in the time-frequency two-dimensional space within the orthogonal frequency division multiplexing (OFDM) symbols, and have known amplitude and phase.
  • REs resource elements
  • uplink communication can include the transmission of uplink physical channels and uplink signals.
  • Uplink physical channels include the random access channel (PRACH), physical uplink control channel (PUCCH), and physical uplink shared channel (PUSCH), etc.
  • Uplink signals include the channel sounding reference signal (SRS), the physical uplink control channel demodulation reference signal (PUCCH-DMRS), the physical uplink shared channel demodulation reference signal (PUSCH-DMRS), the demodulation reference signal (DMRS), the phase tracking reference signal (PTRS), and positioning reference signals (e.g., positioning SRS or SRS for positioning), etc.
  • SRS channel sounding reference signal
  • PUCH-DMRS physical uplink control channel demodulation reference signal
  • PUSCH-DMRS physical uplink shared channel demodulation reference signal
  • DMRS demodulation reference signal
  • PTRS phase tracking reference signal
  • positioning reference signals e.g., positioning SRS or SRS for positioning
  • downlink communication can include the transmission of downlink physical channels and downlink signals.
  • the downlink physical channels include the physical broadcast channel (PBCH), physical downlink control channel (PDCCH), and physical downlink shared channel (PDSCH), while the downlink signals include the primary synchronization signal (PSS)/secondary synchronization signal (SSS), physical downlink control channel demodulation reference signal (PDCCH-DMRS), physical downlink shared channel demodulation reference signal (PDSCH-DMRS), PTRS, channel state information reference signal (CSI-RS), cell reference signal (CRS), tracking reference signal (TRS), positioning reference signal (positioning RS), and synchronization signal/physical broadcast channel block (SS/PBCH block, SSB), etc.
  • PBCH physical broadcast channel
  • PDCCH physical downlink control channel
  • PDSCH-DMRS physical downlink shared channel demodulation reference signal
  • CSI-RS channel state information reference signal
  • CRS cell reference signal
  • TRS tracking reference signal
  • positioning reference signal positioning reference signal
  • SS/PBCH block
  • “send” and “receive” indicate the direction of signal transmission.
  • “send information to device X” can be understood as the destination of the information being device X, which may include sending directly through the air interface or sending indirectly through the air interface by other units or modules.
  • “Receive information from device Y” can be understood as the source of the information being device Y, which may include receiving directly from device Y through the air interface or receiving indirectly from device Y through the air interface by other units or modules.
  • “Send” can also be understood as the "output” of the chip interface, and “receive” can also be understood as the "input” of the chip interface.
  • Entities A and B can be radio access network (RAN) nodes or terminals, or modules within RAN nodes or terminals.
  • RAN radio access network
  • the sending and receiving of information can be an interaction between a RAN node and a terminal, such as between a base station and a terminal; it can also be an interaction between two RAN nodes, such as between a centralized unit (CU) and a distributed unit (DU); or it can be an interaction between different modules within a device, such as between a terminal chip and other modules of the terminal, or between a base station chip and other modules of the base station.
  • a RAN node and a terminal such as between a base station and a terminal
  • two RAN nodes such as between a centralized unit (CU) and a distributed unit (DU)
  • DU distributed unit
  • modules within a device such as between a terminal chip and other modules of the terminal, or between a base station chip and other modules of the base station.
  • the transmitting end can process the signal to be transmitted using a precoding matrix that matches the channel, given the known channel conditions, thus ensuring the precoded signal is compatible with the channel. Therefore, compared to the receiving end receiving an un-precoded signal and eliminating inter-channel interference, the complexity of receiving a precoded signal and eliminating inter-channel interference is reduced. Consequently, by precoding the signal to be transmitted, the quality of the received signal (e.g., signal-to-interference-plus-noise ratio, SINR) is improved. Furthermore, precoding techniques enable transmission between the transmitting end and multiple receiving ends on the same time-frequency resources, achieving multiple-user multiple-input multiple-output (MU-MIMO).
  • MU-MIMO multiple-user multiple-input multiple-output
  • the sending end can be a network device and the receiving end can be a terminal device; or, the sending end can be a terminal device and the receiving end can be a terminal device.
  • MIMO Multiple Input Multiple Output
  • y Hx + n
  • y the received signal
  • H the channel information of the MIMO channel
  • x the transmitted signal
  • n noise.
  • precoding is used to reduce system overhead and maximize the system capacity of MIMO, while also reducing the complexity of eliminating inter-channel interference at the receiver.
  • P can be selected from a predefined set of matrices (or vectors), called the codebook.
  • This method is also known as a codebook-based transmission method. If the sending end can obtain all the information of H, then P can be obtained by the sending end itself. This method is also known as the non-codebook (NCB) sending method.
  • NCB non-codebook
  • the transmitting end may also perform precoding in other ways. For example, when channel information (e.g., but not limited to the channel matrix) is unknown, a pre-set precoding matrix or a weighted processing method may be used for precoding. For the sake of brevity, the specific details will not be elaborated upon here.
  • PMI Precoding Matrix Indication
  • the precoding matrix can be, for example, a precoding matrix determined by the terminal device based on the channel matrix of a single frequency domain unit. This channel matrix can be determined by the terminal device through channel estimation or based on channel reciprocity.
  • specific methods used by the terminal device to determine the precoding matrix are not limited to those described above, and for the sake of brevity, they will not be listed here.
  • the precoding matrix can be obtained by performing singular value decomposition (SVD) on the channel matrix or its covariance matrix, or by performing eigenvalue decomposition (EVD) on the covariance matrix of the channel matrix.
  • SVD singular value decomposition
  • EVD eigenvalue decomposition
  • the network device can determine the channel state information (CSI) RS port, the frequency domain discrete Fourier transform (DFT) vector, and the space-frequency vector combining coefficients for constructing the precoding vector based on feedback from the terminal device, thereby determining the precoding matrix corresponding to each frequency domain unit.
  • This precoding matrix can be directly used for downlink data transmission; alternatively, it can be processed using beamforming methods, such as zero forcing (ZF), regularized zero-forcing (RZF), minimum mean-squared error (MMSE), and signal-to-leakage-and-noise ratio (SLNR), to obtain the final precoding matrix for downlink data transmission.
  • ZF zero forcing
  • RZF regularized zero-forcing
  • MMSE minimum mean-squared error
  • SLNR signal-to-leakage-and-noise ratio
  • the precoding matrix determined by the terminal device can be interpreted as the precoding matrix to be fed back.
  • the terminal device can indicate the precoding matrix to be fed back through a precoding matrix indicator (PMI), so that the network device can recover the precoding matrix based on the PMI.
  • PMI precoding matrix indicator
  • the precoding matrix recovered by the network device based on the PMI can be the same as or similar to the precoding matrix to be fed back.
  • Antenna Port This can be simply called a port. It can be understood as the transmitting antenna that is identified by the receiving end, or a transmitting antenna that can be distinguished in space.
  • An antenna port can be pre-configured for each virtual antenna. Each virtual antenna can be a weighted combination of multiple physical antennas. Each antenna port can correspond to a reference signal. Therefore, each antenna port can be called a port of a reference signal, such as CSI-RS port, demodulation reference signal (DMRS), SRS port, etc.
  • an antenna port is a logical concept, and there is generally no direct correspondence between an antenna port and a physical antenna.
  • An antenna port is typically associated with a reference signal, and its meaning can be understood as a transmit/receive interface on the channel through which the reference signal passes.
  • an antenna port may correspond to one or more antenna elements that jointly transmit the reference signal; the receiver can treat them as a whole without distinguishing between individual elements.
  • an antenna port may correspond to a beam; similarly, the receiver only needs to treat this beam as an interface and does not need to distinguish between individual elements.
  • a port group can refer to a collection of multiple antenna ports.
  • One approach is to group multiple digital ports of a network device to form multiple port groups.
  • Another approach (especially in hybrid digital-analog beamforming architectures) is that a port group can be multiple digital ports corresponding to the same analog beam, also simply called a port group or digital-analog port group.
  • a port group can be a collection of digital ports corresponding to multiple analog beams, also simply called a port group or digital-analog port group.
  • multiple digital ports of the same analog beam can be divided into multiple subsets, each subset being called a port group or digital-analog port group.
  • Channel State Information (CSI) Report In a wireless communication system, this is information reported by the receiver (e.g., a terminal device) to the transmitter (e.g., a network device) to describe the channel attributes of the communication link.
  • the CSI report may include, but is not limited to, precoding matrix indicator (PMI), rank indicator (RI), channel quality indicator (CQI), channel state information reference signal (CSI-RS), CSI-RS resource indicator (CRI), and layer indicator (LI). It should be understood that the specific content of the CSI listed above is merely illustrative and should not constitute any limitation on this application.
  • the CSI may include one or more of the information listed above, or other information used to characterize the CSI besides those listed above; this application does not limit this.
  • Beams Beams and beam pairs (BPLs) are introduced into communication systems.
  • a beam is a communication resource.
  • Beams can be divided into transmit beams and receive beams.
  • Beamforming techniques can be beamforming or other technologies. Beamforming includes transmit beamforming and receive beamforming.
  • a beam is a communication resource.
  • a beam can be wide, narrow, or other types.
  • the technology used to form a beam can be beamforming or other techniques. Beamforming technology can specifically be digital beamforming, analog beamforming, or hybrid digital/analog beamforming. Different beams can be considered different resources. The same or different information can be transmitted through different beams. Optionally, multiple beams with the same or similar communication characteristics can be considered as a single beam.
  • a beam can include one or more antenna ports for transmitting data channels, control channels, and detection signals.
  • a transmit beam can refer to the signal strength distribution in different directions of space after a signal is transmitted through an antenna
  • a receive beam can refer to the signal strength distribution in different directions of space of the wireless signal received from the antenna. It is understood that one or more antenna ports forming a beam can also be considered a set of antenna ports.
  • beams can also be represented by spatial filters.
  • the transmitting device sends a signal with a certain beamforming weight, so that the transmitted signal forms a spatially directional beam.
  • the transmitting device can be a terminal; in the downlink direction, the transmitting device can be a network device.
  • the receiving device receives signals with a certain beamforming weight, forming a spatially directional beam.
  • the receiving device can be a network device; in the downlink direction, the receiving device can be a terminal.
  • Transmit beamforming When a transmitting device with an antenna array transmits a signal, a specific amplitude and phase are set on each antenna element of the antenna array to give the transmitted signal a certain spatial directivity. That is, the signal power is high in some directions and low in some directions, and the direction with the highest signal power is the direction of the transmitted beam.
  • the antenna array consists of multiple antenna elements, and the specific amplitude and phase added are the beamforming weights.
  • Receiver beamforming When a receiver with an antenna array receives a signal, a specific amplitude and phase are set on each antenna element of the array to make the power gain of the received signal directional. That is, the power gain is high when receiving signals in certain directions, and low when receiving signals in other directions. The direction with the highest power gain is the direction of the received beam.
  • the antenna array consists of multiple antenna elements, and the specific amplitude and phase added are the beamforming weights.
  • using a certain transmit beam to transmit a signal can be understood as using a certain beamforming weight to transmit a signal.
  • using a certain receiving beam to receive the signal can be understood as using a certain beamforming weight to receive the signal.
  • Beam pairs are based on the concept of beams.
  • a beam pair typically includes a transmit beam from a transmitting device and a receive beam from a receiving device.
  • Gold sequences are pseudo-random sequences formed by adding two maximum-length sequences (m-sequences) modulo-2. They possess excellent autocorrelation and cross-correlation properties: this means that the correlation between a sequence and its delayed version is close to zero, and the correlation between different sequences is also very small. This is particularly important for Code Division Multiple Access (CDMA) systems, as they allow multiple users to share the same frequency band while reducing interference.
  • CDMA Code Division Multiple Access
  • ZC sequences are complex sequences known for their low peak-to-average power ratio (PAPR) and good autocorrelation, making them suitable for orthogonal frequency division multiplexing (OFDM) systems.
  • PAPR peak-to-average power ratio
  • OFDM orthogonal frequency division multiplexing
  • the communication system includes a radio access network (RAN) 100 and a core network 200.
  • the communication system 1000 may also include an Internet 300.
  • the RAN 100 includes at least one RAN node (110a and 110b in Figure 1, collectively referred to as 110), and may also include at least one terminal (120a-120j in Figure 1, collectively referred to as 120).
  • the RAN 100 may also include other RAN nodes, such as wireless relay devices and/or wireless backhaul devices (not shown in Figure 1).
  • the terminal 120 is wirelessly connected to the RAN node 110, and the RAN node 110 is wirelessly or wiredly connected to the core network 200.
  • the core network equipment in the core network 200 and the RAN node 110 in the RAN 100 can be independent and different physical devices, or they can be the same physical device integrating the logical functions of the core network equipment and the logical functions of the RAN node. Terminals can be connected to each other, as can RAN nodes, via wired or wireless means.
  • RAN100 can be an evolved universal terrestrial radio access (E-UTRA) system, a new radio (NR) system, or a future radio access system as defined in the 3rd generation partnership project (3GPP).
  • E-UTRA evolved universal terrestrial radio access
  • NR new radio
  • 3GPP 3rd generation partnership project
  • RAN100 can also include two or more of the above-mentioned different radio access systems.
  • RAN100 can also be an open RAN (O-RAN).
  • RAN nodes also known as radio access network devices, RAN entities, or access nodes, are used to help terminals access communication systems wirelessly.
  • an RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, or a base station in a future communication system.
  • RAN nodes can be macro base stations (as shown in Figure 1, 110a), micro base stations or indoor stations (as shown in Figure 1, 110b), relay nodes, or donor nodes.
  • a RAN node can be a central unit (CU), a distributed unit (DU), or a radio unit (RU).
  • the CU performs the functions of the base station's Radio Resource Control (RRC) and Packet Data Convergence Protocol (PDCP), and can also perform the functions of the Service Data Adaptation Protocol (SDAP).
  • RRC Radio Resource Control
  • PDCP Packet Data Convergence Protocol
  • SDAP Service Data Adaptation Protocol
  • the DU performs the functions of the base station's Radio Link Control (RANC) and Medium Access Control (MAC) layers, and can also perform some or all of the physical layer functions.
  • RRC Radio Resource Control
  • PDCP Packet Data Convergence Protocol
  • SDAP Service Data Adaptation Protocol
  • the DU performs the functions of the base station's Radio Link Control (RANC) and Medium Access Control (MAC) layers, and can also perform some or all of the physical layer functions.
  • RRC Radio Resource Control
  • MAC Medium Access Control
  • the RU can be used to implement radio frequency signal transmission and reception.
  • the CU and DU can be two independent RAN nodes, or they can be integrated into the same RAN node, such as within a baseband unit (BBU).
  • RUs can be included in radio frequency equipment, such as remote radio units (RRUs) or active antenna units (AAUs).
  • RRUs remote radio units
  • AAUs active antenna units
  • CUs can be further divided into two types of RAN nodes: CU-control plane and CU-user plane.
  • RAN nodes may have different names.
  • a CU can also be called an O-CU (open CU)
  • a DU can also be called an O-DU
  • a CU-CP can also be called an O-CU-CP
  • a CU-UP can also be called an O-CU-UP
  • a RU can also be called an O-RU.
  • this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.
  • This protocol layer may include a control plane protocol layer and a user plane protocol layer.
  • the control plane protocol layer may include at least one of the following: radio resource control (RRC) layer, packet data convergence protocol (PDCP) layer, radio link control (RLC) layer, media/medium access control (MAC) layer, or physical (PHY) layer, etc.
  • the user plane protocol layer may include at least one of the following: service data adaptation protocol (SDAP) layer, PDCP layer, RLC layer, MAC layer, or physical layer, etc.
  • SDAP service data adaptation protocol
  • a terminal is a device with wireless transceiver capabilities, capable of sending signals to or receiving signals from a base station.
  • Terminals can also be called terminal equipment, user equipment (UE), mobile station, mobile terminal, etc.
  • Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc.
  • Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of this application do not limit the specific technology or device form used in the terminal.
  • Base stations and terminals can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of the base stations and terminals.
  • base stations and terminals can be relative.
  • the helicopter or drone 120i in Figure 1 can be configured as a mobile base station.
  • terminal 120i For terminals 120j that access the wireless access network 100 through 120i, terminal 120i is a base station; however, for base station 110a, 120i is a terminal, meaning that 110a and 120i communicate via a wireless air interface protocol.
  • 110a and 120i can also communicate via a base station-to-base station interface protocol.
  • relative to 110a, 120i is also a base station. Therefore, both base stations and terminals can be collectively referred to as communication devices.
  • 110a and 110b in Figure 1 can be called communication devices with base station functions
  • 120a-120j in Figure 1 can be called communication devices with terminal functions.
  • Communication between base stations and terminals, between base stations, and between terminals can be conducted using licensed spectrum, unlicensed spectrum, or both simultaneously. Communication can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both simultaneously.
  • the embodiments of this application do not limit the spectrum resources used for wireless communication.
  • the functions of the base station can be executed by modules (such as chips) within the base station, or by a control subsystem that includes base station functions.
  • This control subsystem, including base station functions can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities.
  • the functions of the terminal can be executed by modules (such as chips or modems) within the terminal, or by a device that includes terminal functions.
  • MIMO technology as a key technology in wireless communication, can be used to meet the demand for high-speed transmission.
  • the network device performs channel measurement using a reference signal to obtain channel state information (CSI). Subsequently, the network device can use this channel information to calculate the precoding information between the network device and the terminal device. MIMO communication can then be achieved between the network device and the terminal device using this precoding information.
  • CSI channel state information
  • the network device can perform precoding on the digital port, while selecting an appropriate coding and modulation order.
  • the role of precoding is to better match the antenna (or beam) with the channel, ensuring better signal quality and less interference when the transmitted data arrives at the terminal.
  • a better modulation order and code rate can maximize the channel transmission capacity while ensuring reliable data transmission.
  • the settings of precoding and modulation coding scheme (MCS) need to be determined based on the channel quality and channel response.
  • a common method is for the network device to send a downlink reference signal, and the terminal device determines the channel based on the downlink reference signal, and then feeds back the corresponding channel state information, including precoding information, the number of transport streams supported by the channel (i.e., RI), and CQI (used to feed back the MCS recommended by the terminal under the current channel quality).
  • This process is called channel state information feedback (CSI feedback).
  • Another approach is to use an uplink reference signal to measure and obtain uplink channel information, and then further obtain downlink channel information based on channel reciprocity. The implementation process of the downlink reference signal will be described below with reference to the implementation example shown in Figure 2.
  • the implementation process of the downlink reference signal includes the following steps.
  • the network device sends configuration information to the terminal device, wherein the configuration information includes channel information reporting (or measurement) configuration information.
  • the channel information reporting configuration information can be sent from the network device to the terminal device via RRC signaling, and can include two parts: resource configuration information and reporting configuration information.
  • Resource configuration information refers to information related to measurement resources and can be configured through a three-level structure (resource configuration (resourceConfig) - resource set (resource) - resource (resource)).
  • a network device can configure one or more resource configurations for a terminal device.
  • Each resource configuration includes one or more resource sets, and each resource set can include one or more resources.
  • Each resource configuration/resource set/resource includes its own index.
  • the channel information reporting configuration information may also include other parameters, such as the resource period and the signal type corresponding to the resource.
  • reporting configuration information refers to the information related to the reporting of measurement results, which is configured in the protocol through the reporting configuration (ReportConfig).
  • Network devices can configure one or more reporting configurations (ReportConfig) for terminal devices.
  • Each reporting configuration includes reporting metrics, reporting time and period, reporting format, and other reporting-related information.
  • the reporting configuration also includes an index of resource configurations, indicating which measurement configuration was used to obtain the reported results.
  • the channel information reporting configuration information includes codebook configuration information (CodebookConfig), which is used to configure the first type or the second type of codebook.
  • CodebookConfig codebook configuration information
  • the network device sends a downlink reference signal.
  • the network device sends a downlink signal (usually a downlink reference signal) on the resources configured in the resource configuration information so that the terminal device can measure the downlink signal and determine the quality of each resource (i.e., the quality of the beam corresponding to the resource).
  • the terminal equipment measures the downlink reference signal based on the configuration information reported by the channel information.
  • the downlink reference signal mainly includes the synchronization signal/physical broadcast channel block (SSB or S-SS/PSBCH block), CSI-RS, and tracking reference signal (TRS).
  • the PBCH can carry the master information block (MIB), used to configure the cell's main system information.
  • the terminal device sends channel information to the network device.
  • this channel information may include a beam measurement report, which includes channel state information (CSI).
  • the channel state information may include one or more of the following: an index of one or more resources, CQI, reference signal received power (RSRP), precoding matrix indicator (PMI), rank indicator (RI), layer indicator (LI), channel state information reference signal resource indicator (CSI-RS Resource indicator (CRI) field, synchronization signal/physical broadcast channel block resource indicator (SSBRI), etc.
  • the PMI matrix can be equivalently represented as:
  • the dimension of W is P CSI-RS ⁇ N 3
  • the dimension of W1 is P CSI-RS ⁇ 2L (or a wideband precoding matrix).
  • the dimension is 2L ⁇ N 3 (corresponding to W 2 in Release 15, which is the precoding matrix of each subband).
  • the dimension is 2L ⁇ M (or the compressed matrix).
  • the dimension is M ⁇ N 3 (which is the M rows of the N 3 ⁇ N 3 inverse discrete fourier transformation (IDFT) matrix, i.e., the conjugate of the M columns of the N 3 ⁇ N 3 DFT matrix W f ), where P CSI-RS is the number of CSI-RS ports.
  • IDFT inverse discrete fourier transformation
  • N 3 is the number of subbands (or the number of PMIs) for PMI feedback.
  • N 3 is the number of subbands (or the number of PMIs) for PMI feedback.
  • W1 the port or DFT codebook information related to W1 needs to be fed back.
  • Related IDFT substrate selection information The non-zero element in the equation. For more details, please refer to 38.214, which will not be elaborated here.
  • channel state information can be carried in uplink control information (UCI) and transmitted through the Physical Uplink Control Channel (PUCCH) or the Physical Uplink Shared Channel (PUSCH).
  • UCI uplink control information
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • the network device can determine scheduling information, including one or more of the following: MCS, RB resource allocation, transmit beam, receive beam, and improve the degree of beam matching with the channel, thereby helping to improve communication rate and efficiency.
  • the downlink reference signal shown in Figure 2 can be CSI-RS.
  • Different ports can be distinguished by orthogonal resources in time and frequency, as will be explained below with reference to Figure 3.
  • the 32 resources correspond to 32 ports.
  • the horizontal direction corresponds to the time domain (using 14 OFDM symbols as an example), and the vertical direction corresponds to the frequency domain (using 12 subcarriers as an example).
  • the first set of resources consists of four REs corresponding to symbols 5 and 6, subcarrier 0, and subcarrier 1.
  • the second set of resources consists of four REs corresponding to symbols 5 and 6, and subcarriers 2 and 3.
  • the third set of resources consists of the four REs corresponding to symbols 5 and 6, and subcarrier 4 and subcarrier 5.
  • the fourth set of resources consists of four REs corresponding to symbols 5 and 6, and subcarriers 6 and 7.
  • the fifth set of resources consists of four REs corresponding to symbols 9 and 10, subcarrier 0, and subcarrier 1.
  • the sixth set of resources consists of four REs corresponding to symbols 9 and 10, and subcarriers 2 and 3.
  • the seventh set of resources consists of four REs corresponding to symbols 9 and 10, and subcarriers 4 and 5.
  • Group 8 resources 4 REs corresponding to symbols 9 and 10, subcarrier 6 and subcarrier 7.
  • code division in the time and frequency domains (e.g., orthogonal cover code, OCC) is used.
  • OCC orthogonal cover code
  • the starting position of CSI-RS resources in time, the density in the frequency domain (i.e., how many resource elements REs are in a resource block (RB), or how many resources are there), the time domain OCC, and the frequency domain OCC can be specified by the configuration information sent by the network device (as in the implementation process of step S201 above).
  • ⁇ CSIRS is the power adjustment coefficient
  • wf (k′) is the frequency domain OCC coefficient
  • wt (l′) is the time domain OCC coefficient
  • l is the OFDM symbol index
  • ns ,f is the time slot number
  • ⁇ is the subcarrier spacing index
  • k′ and l′ are the frequency domain and time domain OCC indices respectively
  • m′ is the pilot symbol index
  • n is the resource block index
  • ⁇ is the frequency domain density (typically 1/3, 1/4, 1/6, 1/8, 0.5, or 1, indicating that one resource exists in two resource blocks, or one resource exists in one resource block).
  • the frequency domain starting resource (subcarrier) index for the OCC group within the resource block This represents the number of resources on a resource block.
  • symbols within the same OFDM symbol and different OCC groups e.g., code division multiplication (CDM) groups
  • CDM code division multiplication
  • N ⁇ sub> C ⁇ /sub> 1600
  • the initial values of the second m-sequence sequence x ⁇ sub>2 ⁇ /sub> (n) are expressed as follows: satisfy:
  • nID is the scrambling code configured for the base station.
  • network devices can achieve the process shown in Figure 2 through multi-beam measurement.
  • network devices serve different terminal devices using multiple beams (analog beams).
  • the terminal devices measure the channels of the multiple beams via CSI-RS and then report the channel information (as in step S204).
  • the terminal devices can measure and/or report the channel information (especially PMI) of some of the beams, and CSI is calculated separately for each resource (the ports are not recombined across resources when measuring CSI).
  • network devices may use multiple CSI-RS resources, each with several antenna ports.
  • CSI-RS resources By jointly measuring multiple CSI-RS resources, a larger number of channels corresponding to antenna ports can be obtained, and then channel information (CSI) can be reported. For instance, by using four CSI-RS resources, each with 32 antenna ports, a total of 128 channels can be obtained through joint measurement.
  • the signal transmitter can send a reference signal, and the corresponding signal receiver can receive this reference signal and perform measurements based on it to obtain channel information. Subsequently, high-speed data transmission can be achieved based on this channel information.
  • improving the transmission performance of the reference signal is a technical problem that urgently needs to be solved in this process.
  • Figure 4 is a schematic diagram of an implementation of the reference signal transmission method provided in this application. The method includes the following steps.
  • the communication device can be a communication equipment, or a chip, baseband chip, modem chip, system-on-chip (SoC) chip containing a modem core, system-in-package (SIP) chip, communication module, chip system, processor, logic module, or software, etc., within the communication equipment.
  • the communication equipment can be a terminal device or network device (e.g., access network equipment, access network element, core network element, or core network equipment, etc.).
  • the network device performing the method shown in Figures 4/7/8/9 can be an ORAN network element, including but not limited to one or more of O-CU-CP, O-CU-UP, O-DU, and O-RU.
  • the second communication device can be a network device.
  • the second communication device can determine the first information through at least one of O-CU-CP, O-CU-UP, and O-DU, and send the first information through the O-RU.
  • the second communication device sends first information.
  • the first communication device receives the first information.
  • the first information is used to configure a first resource, which is used to carry a reference signal; the first resource includes K time units, where K is an integer greater than 1.
  • the second communication device transmits a reference signal.
  • the first communication device receives the reference signal.
  • the reference signal is carried on the first resource.
  • each time unit in the K time units can be one or more orthogonal frequency division multiplexing (OFDM) symbols, one or more time slots, one or more subframes, or one or more frames, etc.
  • OFDM orthogonal frequency division multiplexing
  • the time lengths can be the same or different; this is not limited here.
  • each time unit includes one or more consecutive OFDM symbols in the time domain, or different time units are separated by one or more OFDM symbols.
  • the number of OFDM symbols contained in different time units can be the same, partially the same and partially different, or completely different.
  • each of the K time units (or any one of the time units, or at least one of the time units) is one OFDM symbol, two OFDM symbols, three OFDM symbols, or four OFDM symbols.
  • the number of multiplexed ports in any two time units can be different. In this way, it is possible to transmit reference signals with as many multiplexed ports as possible within the K time units contained in the first resource, and further improve the multiplexing efficiency of the reference signal transmission resources.
  • the number of multiplexed ports for each of the K time units is 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256 or 512.
  • the total number of multiplexed ports for K time units is 16, 32, 48, 64, 96, 128, 192, or 256.
  • the total number of multiplexed ports for K time units is 128, 192, 256, 384, 512, 768, or 1024.
  • one or more OFDM symbols in any one (or at least one) time unit may be continuous or discontinuous in the time domain; this is not limited here.
  • different time units may be separated by one or more OFDM symbols in the time domain, or they may be adjacent in the time domain (i.e., the different time units are not separated by other OFDM symbols in the time domain, or the number of OFDM symbols separated by the different time units in the time domain is 0).
  • one or more frequency domain units (or available frequency domain units) in any one (or at least one) time unit may be continuous or discontinuous in the frequency domain; this is not limited here.
  • the intervals between frequency domain units (or available frequency domain units) in different time units (or the frequency domain densities in different time units) may be the same or different; this is not limited here.
  • At least two time units within the K time units of the first resource have different numbers of multiplexed ports.
  • the first resource can be used to transmit reference signals with at least two different numbers of multiplexed ports, improving the multiplexing efficiency of the reference signal transmission resources and thus enhancing the transmission performance of the reference signal.
  • the number of first communication devices can be one or more, wherein all one or more first communication devices can receive reference signals through the first resource.
  • different first communication devices can receive reference signals with their respective configured (or desired) number of multiplexing ports on the first resource, which can match channels with different numbers of ports, improve the multiplexing efficiency of the reference signal transmission resources, and thus improve the transmission performance of the reference signal.
  • K time units can be implemented in various ways, which will be illustrated with some examples below.
  • Example A For time-domain resources, one or more of the following conditions must be met:
  • At least two time units have different durations
  • At least one time unit consists of one orthogonal frequency division multiplexing (OFDM) symbol, two OFDM symbols, three OFDM symbols, or four OFDM symbols.
  • OFDM orthogonal frequency division multiplexing
  • Example B For frequency domain resources, one or more of the following conditions must be met:
  • the number of frequency domain units differs at least two time units
  • At least two time units occupy different frequency domain widths.
  • Example C For the number of multiplexed ports, one or more of the following conditions must be met:
  • the number of multiplexed ports for each time unit is 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256 or 512;
  • At least one time unit has 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256 or 512 multiplexed ports;
  • the total number of multiplexed ports for the K time units is 16, 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, or 1024.
  • Example D For other implementations of the resource, one or more of the following conditions must be met:
  • At least two time units correspond to different code division multiplexing (CDM) groups
  • At least two time units carry reference signal sequences with different cyclic shifts (CS).
  • the frequency domain spacing of resource or sequence mappings is different in at least two time units.
  • the number of multiplexed ports for reference signals transmitted in different time units of the same resource is the same.
  • symbols 5 and 6 in Figure 3 are considered as one time unit
  • symbols 9 and 10 are considered as another time unit
  • the number of multiplexed ports for these two time units is 16.
  • the number of multiplexed ports for at least two time units among the K time units contained in the first resource is different.
  • the K time units can include two time units: the first time unit includes symbols 5 and 6, and the second time unit includes symbols 9 and 10.
  • the number of ports multiplexed in these two time units can be different.
  • the first set of resources consists of four REs corresponding to symbols 5 and 6, subcarrier 0, and subcarrier 1.
  • the second set of resources consists of four REs corresponding to symbols 5 and 6, and subcarriers 2 and 3.
  • the third set of resources consists of four REs corresponding to symbols 9 and 10, subcarrier 0, and subcarrier 1.
  • the fourth set of resources consists of four REs corresponding to symbols 9 and 10, and subcarriers 2 and 3.
  • the fifth set of resources consists of four REs corresponding to symbols 9 and 10, and subcarriers 4 and 5.
  • the sixth set of resources consists of four REs corresponding to symbols 9 and 10, and subcarriers 6 and 7.
  • the first time unit reuses 8 ports, and the second time unit reuses 16 ports.
  • This allows the first resource to be used to transmit reference signals with at least two different numbers of reused ports, improving the reuse efficiency of the reference signal transmission resources and thus enhancing the transmission performance of the reference signal.
  • some of the first communication devices can receive reference signals in the first time unit (i.e., symbols 5 and 6) shown in Figure 5a using ports with a reuse of 8 ports, while others can receive reference signals in the second time unit (i.e., symbols 9 and 10) shown in Figure 5a using ports with a reuse of 16 ports. This allows for matching channels with different numbers of ports, improving the reuse efficiency of the reference signal transmission resources, and thus enhancing the transmission performance of the reference signal.
  • the K time units can include two time units.
  • the first time unit includes symbols 3 to 6, and the second time unit includes symbols 9 to 12 (i.e., each time unit contains 4 symbols).
  • the number of ports multiplexed in these two time units can be different.
  • the first set of resources consists of symbols 3, 4, 5, and 6, as well as the 16 REs corresponding to subcarriers 0, 1, 2, and 3.
  • the second set of resources consists of symbols 9, 10, 11, and 12, and 32 REs corresponding to subcarriers 0, 1, 2, 3, 4, 5, 7, and 8.
  • the first time unit reuses 16 ports, and the second time unit reuses 32 ports.
  • This allows the first resource to be used to transmit reference signals with at least two different numbers of reused ports, improving the reuse efficiency of the reference signal transmission resources and thus enhancing the transmission performance of the reference signal.
  • some of the first communication devices can receive reference signals in the first time unit (symbols 3 to 6) shown in Figure 5b using ports with a reuse count of 16, while others can receive reference signals in the second time unit (symbols 9 to 12) shown in Figure 5b using ports with a reuse count of 32. This allows for matching channels with different numbers of ports, improving the reuse efficiency of the reference signal transmission resources, and thus enhancing the transmission performance of the reference signal.
  • At least two time units have the same number of multiplexed ports, or any two time units have the same number of multiplexed ports. Furthermore, the port multiplexing methods differ between at least two time units.
  • the specific K time units can be referenced in the following embodiments (e.g., the first condition, second condition, and third condition described below, Figures 6a to 6d, and related implementations, etc.).
  • the first communication device can be a terminal device and the second communication device can be a network device (e.g., an access network device).
  • the scheme shown in Figure 4 and the following Figures 7/8/9 can be applied to a communication scenario involving downlink reference signal transmission.
  • the reference signal received by the first communication device in step S402 (or steps S702, S802, S901, etc.) can be the downlink reference signal.
  • the implementation process of steps S401 and S402 can refer to the implementation process of steps S201 and S202 described above.
  • the schemes shown in Figure 4 and later in Figures 7/8/9 can also be applied to communication scenarios involving uplink reference signal transmission.
  • the first communication device may not perform the process of transmitting a reference signal in step S402 (or steps S702, S802, S901, etc.), but instead perform the process of transmitting a reference signal.
  • the reference signal transmitted by the first communication device can be an uplink reference signal.
  • the downlink reference signals mentioned above may include SSB, CSI-RS, PTRS, DMRS, or TRS, etc.
  • the uplink reference signal mentioned above may include SRS, PTRS, DMRS, or uplink positioning signal, etc.
  • both the first and second communication devices are terminal devices, that is, the schemes shown in Figure 4 and Figures 7/8/9 below can be applied to the side link communication scenario, that is, the above reference signal can be the side reference signal.
  • the sidelink reference signal mentioned above may include a sidelink synchronization signal block (S-SSB or SL-SSB) or a sidelink channel state information reference signal (SL-CSI-RS), etc.
  • S-SSB sidelink synchronization signal block
  • SL-CSI-RS sidelink channel state information reference signal
  • the method further includes: a first communication device sending second information, and correspondingly, a second communication device receiving the second information (this implementation process can refer to the implementation processes of steps S203 and S204 above).
  • the second information is used to indicate the measurement result of the reference signal.
  • the first communication device can measure the reference signal to obtain a measurement result, and indicate the measurement result through the sent second information, enabling the receiver of the second information to communicate based on the measurement result, thereby improving communication quality.
  • the first information received by the first communication device in step S401 includes at least one of the following:
  • the first indication information indicates the multiplexing port information for each of the K time units; wherein, the multiplexing port information is used to indicate at least one of the following: time domain code group, frequency domain code group, frequency domain interval, frequency domain start position, and number of multiplexing ports;
  • the second indication information indicates the number of symbols contained in each of the K time units
  • the third indication information indicates the total number of multiplexed ports for the K time units.
  • the first information used to configure the first resource can be implemented in the above-mentioned multiple ways to improve the flexibility of the scheme implementation. Furthermore, the first communication device can also obtain the multiplexing port information and related information of the K time units through the above-mentioned multiple methods, enabling the first communication device to receive the reference signal in step S402 based on this specified information, thus avoiding reference signal reception failure.
  • the first information can be one or more of the following combinations: RRC, DCI, or MAC CE.
  • the first communication device can determine the first resource based on the first information received in step S401.
  • the first resource contains K time units, which can be implemented by one or more of the following methods (wherein one or more methods can be referred to as the first condition), which will be described in detail below.
  • Method 1 The total number of multiplexed ports for the K time units is P ⁇ sub>RS ⁇ /sub>, where P ⁇ sub> RS ⁇ /sub> ports include P ⁇ sub>0 ⁇ /sub> ports multiplexed in the 1st time unit... P ⁇ sub>K-1 ⁇ /sub> ports multiplexed in the Kth time unit, and P ⁇ sub> 0 ⁇ /sub> ...P ⁇ sub> K-1 ⁇ /sub> ports are all greater than 1; the mapping order between the P ⁇ sub> RS ⁇ /sub> ports and the K time units is as follows:
  • the first time unit reuses the P0 ports, the first one of which is the first one.
  • the first port ...the P K-1 ports multiplexed in the Kth time unit.
  • the last port of port P0 which is multiplexed in the first time unit.
  • the port ...the last of the P K-1 ports multiplexed in the Kth time unit.
  • the total number of multiplexed ports in the K time units is P RS
  • the mapping order of the P RS ports to the K time units satisfies the above process, so that the mapping order of the first half port and the second half port of any time unit in the K time units is staggered (for example, the polarization direction corresponding to the first half port of any time unit in the K time units is different from the polarization direction corresponding to the second half port), so as to be compatible with communication devices with different communication capabilities (for example, different numbers of communication ports).
  • Method 2 The K time units satisfy at least one of the following:
  • the i-th time unit in the K time units reuses the P i ports in the later...
  • the mapping order of the ports is based on the first Pj ports multiplexed in the j-th time unit of the K time units.
  • i and j are any one from 1 to K, and P i and P j are both greater than 1 (or, in K time units, the mapping order of the second half of the multiplexed ports in any time unit is after the mapping order of the first half of the multiplexed ports in any time unit).
  • the mapping order of the ports is based on the order of the first P i ports multiplexed in the i-th time unit of the K time units.
  • the mapping order of the ports is after (or, in K time units, the mapping order of the first half of the multiplexed ports of any time unit is after the mapping order of the first half of the multiplexed ports of the next adjacent time unit of that time unit);
  • the (i+1)th time unit in the K time units reuses the P ⁇ sub> i+1 ⁇ /sub> port.
  • the mapping order of the ports is determined by the last port in the P ⁇ sub>i ⁇ /sub> ports multiplexed in the i-th time unit of the K time units.
  • the mapping order of the ports follows (or, in K time units, the mapping order of the second half of the multiplexed ports of any time unit is located after the mapping order of the second half of the multiplexed ports of the next adjacent time unit of that time unit).
  • the mapping order of the ports multiplexed in the i-th time unit among the K time units satisfies at least one of the above, such that the mapping order of the first half and the second half of the ports in the same time unit among the K time units is staggered (for example, the polarization direction corresponding to the first half of the port in any time unit among the K time units is different from the polarization direction corresponding to the second half of the port), so as to be compatible with communication devices with different communication capabilities (for example, different numbers of communication ports).
  • Method 3 The number of multiplexed ports in the k-th time unit of the K time units contained in the first resource is Pk , where k ranges from 0 to K-1 and Pk is greater than 1; among the Pk ports, at least two ports have different polarization directions.
  • Method 4 Among the Pk ports, port 0 to port 1 The polarization direction is the first polarization direction, and the port To port The polarization direction is the second polarization direction.
  • At least two ports have different polarization directions, such that the polarization direction of the first half of the ports in any time unit of the K time units is different from the polarization direction of the second half of the ports, so as to be compatible with communication devices with different communication capabilities (e.g., different numbers of communication ports).
  • the Pk ports multiplexed in the kth time unit of K time units, the first half (i.e. (Corresponding to the first polarization direction, the second half) This corresponds to the second polarization.
  • the first half i.e. (Corresponding to the first polarization direction, the second half)
  • the second polarization For example, in ascending order of time, multiple ports in the first polarization direction of each group are combined sequentially, and then similarly, multiple ports in the second polarization direction of each group are combined. See Table 2 below for reference.
  • the number of ports Pk multiplexed in the k-th time unit is 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256 or 512.
  • the total number of multiplexed ports PRS for K time units can be 16, 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, or 1024.
  • the mapping order of the multiple ports multiplexed by the resource is as follows: at the lower position of the time domain resource index, mapping is performed from the lower frequency domain resource index to the higher frequency domain resource index, and then at the lower position of the time domain resource index, mapping is performed from the lower frequency domain resource index to the higher frequency domain resource index. That is, the traditional mapping method first maps the multiple frequency domain resource positions corresponding to one time domain resource index, and then maps the multiple frequency domain resource positions corresponding to the next time domain resource index.
  • Figure 6a shows an example of a traditional mapping method corresponding to the scenario shown in Figure 3.
  • the mapping order of the 32 ports is as follows:
  • Map 8 ports on the first symbol i.e., map ports 0-7 on symbol 5;
  • Map 8 ports on the second symbol i.e., map ports 8-15 on symbol 6
  • Map 8 ports on the third symbol i.e., map ports 16-23 on symbol 9
  • Eight ports are mapped on the fourth symbol.
  • the polarization direction of the first half of the port of any of the K time units is different from the polarization direction of the second half of the port. This will be described below with reference to the examples shown in Figures 6b and 6c.
  • Figure 6b illustrates one implementation of the mapping method corresponding to the scenario shown in Figure 5a.
  • the K time units can include two time units: the first time unit includes symbols 5 and 6, and the second time unit includes symbols 9 and 10.
  • the mapping order of the 24 ports is as follows:
  • the first four ports are mapped in the first time unit (i.e., ports 0-3 are mapped on symbols 5 and 6), which is half the total number of ports mapped in the first time unit (8).
  • the first 8 ports are mapped in the second time unit (i.e., ports 4-11 are mapped on symbols 9 and 10), which is half the total number of ports mapped in the second time unit (16).
  • Eight ports are mapped after the second time unit (i.e., ports 16-23 are mapped on symbols 9 and 10), which is half the total number of ports mapped in the second time unit (16).
  • the polarization direction of the first half of the ports in any of the K time units is different from that of the second half of the ports, which can accommodate communication devices with different communication capabilities (e.g., different numbers of communication ports).
  • some of the first communication devices can receive the reference signal in the first time unit shown in Figure 6b based on a port with a port multiplexing of 8
  • other first communication devices can receive the reference signal in the second time unit shown in Figure 6b based on a port with a port multiplexing of 16, thus matching channels with different numbers of ports.
  • Figure 6c illustrates one implementation of the mapping method corresponding to the scenario shown in Figure 5b.
  • the K time units can include two time units: the first time unit includes symbols 3 to 6, and the second time unit includes symbols 9 to 12.
  • the mapping order of the 48 ports is as follows:
  • the first 8 ports are mapped in the first time unit (i.e., ports 0-7 are mapped on symbols 3 to 6), which is half the total number of ports mapped in the first time unit (16).
  • the first 16 ports are mapped in the second time unit (i.e., ports 8-23 are mapped on symbols 9 to 12), which is half the total number of ports mapped in the second time unit (32).
  • Eight ports are mapped after the first time unit (i.e., ports 24-31 are mapped on symbols 3 to 6), which is half the total number of ports mapped in the first time unit (16).
  • the second time unit maps 16 ports (i.e., ports 32-47 are mapped on symbols 9 to 12), which is half the total number of ports mapped in the second time unit (32).
  • the polarization direction of the first half of the ports in any of the K time units is different from that of the second half of the ports, which can accommodate communication devices with different communication capabilities (e.g., different numbers of communication ports).
  • some of the first communication devices can receive the reference signal in the first time unit shown in Figure 6c based on a port with a port multiplexing of 16, while other first communication devices can receive the reference signal in the second time unit shown in Figure 6c based on a port with a port multiplexing of 32, thus matching channels with different numbers of ports.
  • the implementation process can be seen that, within K time units, one or more of the following conditions are satisfied (wherein, one or more of these conditions can be denoted as the second condition):
  • At least two time units can have the same duration (e.g., both time units in Figure 6c include 4 symbols), which reduces the complexity of the configuration.
  • At least two time units have a different number of frequency domain units (e.g., 4 frequency domain units in the first time unit and 8 frequency domain units in the second time unit in Figure 6c), and/or, at least two time units occupy different frequency domain widths (e.g., 4 RBs in the first time unit and 8 RBs in the second time unit in Figure 6c).
  • a larger number of reference signals corresponding to a larger number of ports can be transmitted over a larger number of frequency domain units, or a smaller number of reference signals corresponding to a smaller number of ports can be transmitted over a smaller number of frequency domain units, thereby improving resource utilization.
  • K time units can be implemented in a more flexible way, which will be explained with more examples below.
  • the K time units can include three time units: the first time unit includes symbol 1, the second time unit includes symbols 4 to 5, and the third time unit includes symbols 9 to 12.
  • the mapping order of the 52 ports is as follows:
  • the first two ports are mapped in the first time unit (i.e., ports 0-1 are mapped on symbol 1), and the number of these ports is half the total number of ports mapped in the first time unit (4).
  • the first 8 ports are mapped in the second time unit (i.e., ports 2-9 are mapped on symbols 4 to 5), which is half the total number of ports mapped in the second time unit (16).
  • the first 16 ports are mapped in the third time unit (i.e., ports 10-25 are mapped on symbols 9 to 12), which is half the total number of ports mapped in the second time unit (32).
  • Eight ports are mapped after the second time unit (i.e., ports 28-35 are mapped on symbols 4 to 5), which is half the total number of ports mapped in the second time unit (16).
  • the third time unit maps 16 ports (i.e., ports 36-51 are mapped on symbols 9 to 12), which is half the total number of ports mapped in the second time unit (32).
  • the polarization direction corresponding to the first half of the ports in any of the K time units is different from the polarization direction corresponding to the second half of the ports, which can be compatible with communication devices with different communication capabilities (e.g., different numbers of communication ports).
  • some of the first communication devices can receive the reference signal in the first time unit shown in Figure 6d based on a port with a port multiplexing of 4
  • another group of first communication devices can receive the reference signal in the second time unit shown in Figure 6d based on a port with a port multiplexing of 16
  • yet another group of first communication devices can receive the reference signal in the third time unit shown in Figure 6d based on a port with a port multiplexing of 32, thus matching channels with different numbers of ports.
  • the duration of at least two time units can be different (for example, the number of symbols occupied by the three time units in Figure 6d are 1, 2, and 4 respectively).
  • a larger number of reference signals corresponding to a larger number of ports can be transmitted on a larger number of time units, or a smaller number of reference signals corresponding to a smaller number of ports can be transmitted on a smaller number of time units, thereby improving resource utilization.
  • the time interval between at least two time units can be different (for example, the time interval between the first and second time units in Figure 6d is 2 symbols, and the time interval between the second and third time units in Figure 6d is 3 symbols).
  • a longer time interval can be configured for a large number of time units with a longer duration to improve anti-interference capability.
  • a shorter time interval can be configured for a small number of time units with a shorter duration to improve resource utilization.
  • At least two time units occupy different frequency domain widths, or at least two time units have different numbers of frequency domain units (for example, the first time unit in Figure 6d occupies 4 frequency domain units, and the second time unit in Figure 6d occupies 8 frequency domain units), which enables the number of frequency domain units carrying the reference signal to match the number of multiplexed ports in the time unit.
  • At least two time units correspond to different CDM group sizes (for example, the CDM group corresponding to the first time unit in Figure 6d contains instructions for two ports to perform code division on the same time-frequency domain resources, and the CDM group corresponding to the second time unit in Figure 6d contains instructions for eight ports to perform code division on the same time-frequency domain resources), which enables the resource code division method carrying the reference signal to match the number of multiplexed ports in the time unit.
  • At least two time units have different frequency domain intervals for resource or sequence mappings, i.e., different frequency domain granularities (for example, in Figure 6d, the interval between different REs corresponding to the first time unit is 2 REs, and the interval between different REs corresponding to the second time unit is 0 REs).
  • the corresponding frequency domain granularity can be configured for time units corresponding to different numbers of multiplexed ports.
  • the frequency domain granularity is dense, the resource utilization can be improved, and when the frequency domain granularity is sparse, the anti-interference capability of signal transmission can be improved.
  • CS cyclic shifts
  • the reference signal transmitted on the first resource is generated based on a ZC (Zadoff-Chu) sequence, or it is generated based on the ZC sequence and a Gold sequence, or it is generated based on a cyclic shift sequence.
  • the above process ensures that the reference signal transmitted on the first resource is at least generated based on a ZC sequence. This leverages the constant envelope characteristic and cyclic shift characteristic of the ZC sequence to identify multiple ports within a single reception detection, thereby reducing the detection complexity at the receiver.
  • the reference signal (or the sequence of the reference signal) satisfies:
  • N is the number of frequency domains mapped
  • N ZC is the sequence length
  • j is the imaginary unit
  • u is the root sequence index
  • CS is the cyclic shift value
  • r(m) represents the Gold sequence.
  • the reference signal or the sequence of the reference signal can be a ZC sequence.
  • the root sequence index, the cyclic shift value, and the number of cyclic shifts for a single root sequence mentioned above. or One or more of the following (rounding down and rounding up respectively) can be configured by the network device or pre-configured.
  • r(m) can refer to the previous description.
  • r(m) can be the implementation described above.
  • the second communication device sends third information.
  • the first communication device receives the third information.
  • the third information is used to configure a second resource, which is used to carry a reference signal; the first resource includes K time units, where K is an integer greater than 1.
  • the second communication device transmits a reference signal.
  • the first communication device receives the reference signal.
  • the reference signal is carried on a second resource.
  • Method 1 The total number of multiplexed ports for the K time units is P ⁇ sub>RS ⁇ /sub>, where P ⁇ sub> RS ⁇ /sub> ports include P ⁇ sub>0 ⁇ /sub> ports multiplexed in the 1st time unit... P ⁇ sub>K-1 ⁇ /sub> ports multiplexed in the Kth time unit, and P ⁇ sub>0 ⁇ /sub> ...P ⁇ sub> K-1 ⁇ /sub> ports are all greater than 1.
  • the mapping order between the P ⁇ sub> RS ⁇ /sub> ports and the K time units is as follows: the first... The first port...the P K-1 ports multiplexed in the Kth time unit. The last port of port P0 , which is multiplexed in the first time unit. The port...the last port in the P K-1 port multiplexed in the Kth time unit. One port.
  • Method 2 The K time units satisfy at least one of the following:
  • the i-th time unit in the K time units reuses the P i ports in the later...
  • the mapping order of the ports is based on the first Pj ports multiplexed in the j-th time unit of the K time units.
  • i and j are any one from 1 to K, and P i and P j are both greater than 1;
  • the mapping order of the ports is based on the order of the first P i ports multiplexed in the i-th time unit of the K time units.
  • the (i+1)th time unit in the K time units reuses the P ⁇ sub> i+1 ⁇ /sub> port.
  • the mapping order of the ports is determined by the last port in the P ⁇ sub>i ⁇ /sub> ports multiplexed in the i-th time unit of the K time units. The mapping order of the ports is then determined.
  • Method 3 The number of multiplexed ports in the k-th time unit of the K time units is Pk , where k ranges from 0 to K-1, and Pk is greater than 1;
  • At least two ports have different polarization directions.
  • Method 4 Among the Pk ports, port 0 to port 1 The polarization direction is the first polarization direction, and the port To port The polarization direction is the second polarization direction.
  • the total number of multiplexed ports of the K time units included in the second resource is P RS
  • the mapping order of the P RS ports to the K time units satisfies the above process, so that the mapping order of the first half port and the second half port of any time unit in the K time units is staggered (for example, the polarization direction corresponding to the first half port of any time unit in the K time units is different from the polarization direction corresponding to the second half port), so as to be compatible with communication devices with different communication capabilities (for example, different numbers of communication ports).
  • the mapping order of the ports multiplexed in the i-th time unit among the K time units satisfies at least one of the above, so that the mapping order of the first half of the ports and the second half of the ports in the same time unit among the K time units is staggered (for example, the polarization direction corresponding to the first half of the port in any time unit among the K time units is different from the polarization direction corresponding to the second half of the port), so as to be compatible with communication devices with different communication capabilities (for example, different numbers of communication ports).
  • At least two ports have different polarization directions, so that the polarization direction of the first half of the ports in any time unit of K time units is different from the polarization direction of the second half of the ports, so as to be compatible with communication devices with different communication capabilities (e.g., different numbers of communication ports).
  • the reference signal is generated based on a ZC sequence, or it is generated based on the ZC sequence and a Gold sequence, or it is generated based on a cyclic shift sequence.
  • the reference signal transmitted on the first resource can be generated based on a ZC sequence, or it can be generated based on the ZC sequence and a Gold sequence, or it can be generated based on a cyclic shift sequence.
  • the reference signal transmitted on the first resource is at least generated based on a ZC sequence. This leverages the constant envelope characteristic and cyclic shift characteristic of the ZC sequence to identify multiple ports within a single reception detection, thereby reducing the detection complexity at the receiver.
  • the reference signal (or the sequence of the reference signal) satisfies:
  • N is the number of frequency domains mapped
  • N ZC is the sequence length
  • j is the imaginary unit
  • u is the root sequence index
  • CS is the cyclic shift value
  • r(m) represents the Gold sequence.
  • the reference signal or the sequence of the reference signal can be a ZC sequence.
  • Figure 8 is a schematic diagram of another implementation of the reference signal transmission method provided in this application. The method includes the following steps.
  • the second communication device sends fourth information.
  • the first communication device receives the fourth information.
  • the fourth information is used to configure a third resource, which is used to carry a reference signal; wherein the reference signal is generated based on a ZC sequence, or, the reference signal is generated based on the ZC sequence and a Gold sequence, or, the reference signal is generated based on a cyclic shift sequence.
  • the second communication device transmits a reference signal.
  • the first communication device receives the reference signal.
  • the reference signal is carried on a third resource.
  • the reference signal transmitted on the third resource can be generated based on a ZC sequence, or based on the ZC sequence and a Gold sequence, or the reference signal can be generated based on a cyclic shift sequence.
  • the reference signal transmitted on the third resource is at least generated based on a ZC sequence. This leverages the constant envelope characteristic and cyclic shift characteristic of the ZC sequence to identify multiple ports within a single reception detection, thereby reducing the detection complexity at the receiver.
  • Figure 9 is a schematic diagram of another implementation of the reference signal transmission method provided in this application.
  • the method includes the following steps.
  • the second communication device generates a reference signal.
  • the reference signal is generated based on a ZC sequence, or, the reference signal is generated based on the ZC sequence and a Gold sequence, or, the reference signal is generated based on a cyclic shift sequence.
  • the second communication device transmits a reference signal.
  • the first communication device receives the reference signal.
  • the reference signal can be generated based on a ZC sequence, or based on the ZC sequence and a Gold sequence, or based on a cyclic shift sequence.
  • the reference signal transmitted on the third resource is at least generated based on a ZC sequence. This leverages the constant envelope and cyclic shift characteristics of the ZC sequence to identify multiple ports within a single reception detection, thereby reducing the detection complexity at the receiver.
  • any of the implementation methods in Figures 7 to 9 can refer to the implementation process of Figure 4 and related implementation examples (such as Figures 5a, 6a, 6b, and 6c).
  • This application embodiment provides a communication device 10, which can realize the functions of the first communication device (or second communication device) in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments.
  • the communication device 10 can be the first communication device (or the second communication device), or it can be an integrated circuit or component inside the first communication device (or the second communication device), such as a chip.
  • the device 10 when the device 10 is used to execute the method performed by the first communication device in the foregoing embodiments, the device 10 includes a processing unit 1001 and a transceiver unit 1002; the transceiver unit 1002 is used to receive first information, the first information being used to configure a first resource, the first resource being used to carry a reference signal; wherein, the first resource includes K time units, K being an integer greater than 1; the processing unit 1001 is used to control the transceiver unit 1002 to receive the reference signal on the first resource.
  • the device 10 when the device 10 is used to execute the method performed by the second communication device in the foregoing embodiments, the device 10 includes a processing unit 1001 and a transceiver unit 1002; the processing unit 1001 is used to determine first information; the transceiver unit 1002 is used to send the first information, the first information being used to configure a first resource, the first resource being used to carry a reference signal; wherein, the first resource includes K time units, K being an integer greater than 1; the transceiver unit 1002 is also used to send the reference signal on the first resource.
  • the device 10 when the device 10 is used to execute the method performed by the first communication device in the foregoing embodiments, the device 10 includes a processing unit 1001 and a transceiver unit 1002; the transceiver unit 1002 is used to receive third information, the third information being used to configure a second resource, the second resource being used to carry a reference signal; wherein, the first resource includes K time units, K being an integer greater than 1; the processing unit 1001 is used to control the transceiver unit 1002 to receive the reference signal on the second resource.
  • the device 10 when the device 10 is used to execute the method performed by the second communication device in the foregoing embodiments, the device 10 includes a processing unit 1001 and a transceiver unit 1002; the processing unit 1001 is used to determine third information; the transceiver unit 1002 is used to send the third information, the third information being used to configure a second resource, the second resource being used to carry a reference signal; wherein, the first resource includes K time units, K being an integer greater than 1; the transceiver unit 1002 is also used to send the reference signal on the second resource.
  • the device 10 when the device 10 is used to execute the method performed by the first communication device in the foregoing embodiments, the device 10 includes a processing unit 1001 and a transceiver unit 1002; the transceiver unit 1002 is used to receive fourth information, the fourth information being used to configure a third resource, the third resource being used to carry a reference signal; wherein the reference signal is generated based on a ZC sequence, or, the reference signal is generated based on the ZC sequence and a Gold sequence, or, the reference signal is generated based on a cyclic shift sequence; the processing unit 1001 is used to control the transceiver unit 1002 to receive the reference signal on the third resource.
  • the device 10 when the device 10 is used to execute the method performed by the second communication device in the foregoing embodiments, the device 10 includes a processing unit 1001 and a transceiver unit 1002; the processing unit 1001 is used to determine fourth information; the transceiver unit 1002 is used to transmit the fourth information, which is used to configure a third resource, and the third resource is used to carry a reference signal; wherein the reference signal is generated based on a ZC sequence, or the reference signal is generated based on the ZC sequence and a Gold sequence, or the reference signal is generated based on a cyclic shift sequence; the transceiver unit 1002 is also used to transmit the reference signal on the third resource.
  • the device 10 when the device 10 is used to perform the method executed by the first communication device in the foregoing embodiments, the device 10 includes a processing unit 1001 and a transceiver unit 1002; the processing unit 1001 is used to generate a reference signal, which is generated based on a ZC sequence, or the reference signal is generated based on the ZC sequence and a Gold sequence, or the reference signal is generated based on a cyclic shift sequence; the transceiver unit 1002 is used to transmit the reference signal.
  • the processing unit 1001 is used to generate a reference signal, which is generated based on a ZC sequence, or the reference signal is generated based on the ZC sequence and a Gold sequence, or the reference signal is generated based on a cyclic shift sequence
  • the transceiver unit 1002 is used to transmit the reference signal.
  • the device 1000 when the device 10 is used to perform the method executed by the second communication device in the foregoing embodiments, the device 1000 includes a transceiver unit 1002; the transceiver unit 1002 is used to receive a reference signal, which is generated based on a ZC sequence, or, which is generated based on the ZC sequence and the Gold sequence, or, which is generated based on a cyclic shift sequence.
  • the communication device 1100 includes a logic circuit 1101 and an input/output interface 1102.
  • the communication device 1100 can be a chip or an integrated circuit.
  • the transceiver unit 1002 can be a communication interface, which can be the input/output interface 1102 in Figure 11.
  • the input/output interface 1102 can include an input interface and an output interface.
  • the communication interface can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.
  • the input/output interface 1102 is used to receive first information, which is used to configure a first resource, and the first resource is used to carry a reference signal; wherein, the first resource includes K time units, where K is an integer greater than 1; the logic circuit 1101 is used to control the input/output interface 1102 to receive the reference signal on the first resource.
  • the logic circuit 1101 and the input/output interface 1102 can also perform other steps executed by the first communication device in the foregoing embodiments and achieve corresponding beneficial effects, which will not be elaborated here.
  • the logic circuit 1101 is used to determine first information; the input/output interface 1102 is used to send the first information, which is used to configure a first resource, and the first resource is used to carry a reference signal; wherein, the first resource includes K time units, where K is an integer greater than 1; the input/output interface 1102 is also used to send the reference signal on the first resource.
  • the logic circuit 1101 and the input/output interface 1102 can also perform other steps executed by the second communication device in the foregoing embodiments and achieve corresponding beneficial effects, which will not be elaborated here.
  • the input/output interface 1102 is used to receive third information, which is used to configure a second resource, and the second resource is used to carry a reference signal; wherein, the first resource includes K time units, where K is an integer greater than 1; the logic circuit 1101 is used to control the input/output interface 1102 to receive the reference signal on the second resource.
  • the logic circuit 1101 and the input/output interface 1102 can also perform other steps executed by the first communication device in the foregoing embodiments and achieve corresponding beneficial effects, which will not be elaborated here.
  • the logic circuit 1101 is used to determine third information; the input/output interface 1102 is used to send the third information, which is used to configure a second resource, and the second resource is used to carry a reference signal; wherein, the first resource includes K time units, where K is an integer greater than 1; the input/output interface 1102 is also used to send the reference signal on the second resource.
  • the logic circuit 1101 and the input/output interface 1102 can also perform other steps executed by the second communication device in the foregoing embodiments and achieve corresponding beneficial effects, which will not be elaborated here.
  • the input/output interface 1102 is used to receive fourth information, which is used to configure a third resource, and the third resource is used to carry a reference signal; wherein, the reference signal is generated based on a ZC sequence, or, the reference signal is generated based on the ZC sequence and a Gold sequence, or, the reference signal is generated based on a cyclic shift sequence; the logic circuit 1101 is used to control the input/output interface 1102 to receive the reference signal on the third resource.
  • the logic circuit 1101 and the input/output interface 1102 can also perform other steps executed by the first communication device in the foregoing embodiments and achieve corresponding beneficial effects, which will not be elaborated here.
  • the logic circuit 1101 is used to determine fourth information; the input/output interface 1102 is used to send the fourth information, which is used to configure a third resource, and the third resource is used to carry a reference signal; wherein, the reference signal is generated based on a ZC sequence, or, the reference signal is generated based on the ZC sequence and a Gold sequence, or, the reference signal is generated based on a cyclic shift sequence; the input/output interface 1102 is also used to send the reference signal on the third resource.
  • the logic circuit 1101 and the input/output interface 1102 can also perform other steps performed by the second communication device in the foregoing embodiments and achieve corresponding beneficial effects, which will not be elaborated here.
  • the logic circuit 1101 is used to generate a reference signal, which is generated based on a ZC sequence, or based on the ZC sequence and a Gold sequence, or based on a cyclic shift sequence; the input/output interface 1102 is used to transmit the reference signal.
  • the logic circuit 1101 and the input/output interface 1102 can also perform other steps executed by the first communication device in the aforementioned embodiments and achieve corresponding beneficial effects, which will not be elaborated here.
  • the input/output interface 1102 is used to receive a reference signal, which is generated based on a ZC sequence, or generated based on the ZC sequence and a Gold sequence, or generated based on a cyclic shift sequence.
  • the logic circuit 1101 and the input/output interface 1102 can also perform other steps executed by the second communication device in the foregoing embodiments and achieve corresponding beneficial effects, which will not be elaborated here.
  • the processing unit 1001 shown in FIG10 can be the logic circuit 1101 in FIG11.
  • the logic circuit 1101 can be a processing device, the functions of which can be partially or entirely implemented in software.
  • the processing apparatus may include a memory and a processor, wherein the memory is used to store computer programs or instructions, and the processor reads and executes the computer programs or instructions stored in the memory to perform the corresponding processing and/or steps in any of the method embodiments.
  • the processing device may consist of only a processor.
  • a memory for storing computer programs or instructions is located outside the processing device, and the processor is connected to the memory via circuitry/wires to read and execute the computer programs or instructions stored in the memory.
  • the memory and processor may be integrated together or physically independent of each other.
  • the processing device may be one or more chips, or one or more integrated circuits.
  • the processing device may be one or more field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), system-on-chips (SoCs), central processing units (CPUs), network processors (NPs), digital signal processors (DSPs), microcontroller units (MCUs), programmable logic devices (PLDs), or other integrated chips, or any combination of the above chips or processors.
  • FPGAs field-programmable gate arrays
  • ASICs application-specific integrated circuits
  • SoCs system-on-chips
  • CPUs central processing units
  • NPs network processors
  • DSPs digital signal processors
  • MCUs microcontroller units
  • PLDs programmable logic devices
  • Figure 12 shows the communication device 1200 involved in the above embodiments provided in the embodiments of this application.
  • the communication device 1200 can be the communication device as a terminal device in the above embodiments.
  • the example shown in Figure 12 is that the terminal device is implemented through the terminal device (or the components in the terminal device).
  • the present invention provides a possible logical structure diagram of the communication device 1200, which may include, but is not limited to, at least one processor 1201 and a communication port 1202.
  • the device may also include at least one of a memory 1203 and a bus 1204.
  • the at least one processor 1201 is used to control the operation of the communication device 1200.
  • the processor 1201 can be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application.
  • the processor can also be a combination that implements computational functions, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, etc.
  • the communication device 1200 shown in Figure 12 can be used to implement the steps implemented by the terminal device in the aforementioned method embodiments and achieve the corresponding technical effects of the terminal device.
  • the specific implementation of the communication device shown in Figure 12 can be referred to the description in the aforementioned method embodiments, and will not be repeated here.
  • Figure 13 is a schematic diagram of the structure of the communication device 1300 involved in the above embodiments provided in the embodiments of this application.
  • the communication device 1300 can specifically be a communication device as a network device in the above embodiments.
  • the example shown in Figure 13 is that the network device is implemented through a network device (or a component in the network device).
  • the structure of the communication device can refer to the structure shown in Figure 13.
  • the communication device 1300 includes at least one processor 1311 and at least one network interface 1314. Further optionally, the communication device also includes at least one memory 1312, at least one transceiver 1313, and one or more antennas 1315.
  • the processor 1311, memory 1312, transceiver 1313, and network interface 1314 are connected, for example, via a bus. In this embodiment, the connection may include various interfaces, transmission lines, or buses, etc., and this embodiment is not limited thereto.
  • the antenna 1315 is connected to the transceiver 1313.
  • the network interface 1314 enables the communication device to communicate with other communication devices through a communication link.
  • the network interface 1314 may include a network interface between the communication device and core network equipment, such as an S1 interface; the network interface may also include a network interface between the communication device and other communication devices (e.g., other network devices or core network equipment), such as an X2 or Xn interface.
  • core network equipment such as an S1 interface
  • other communication devices e.g., other network devices or core network equipment
  • Processor 1311 is primarily used for processing communication protocols and communication data, controlling the entire communication device, executing software programs, and processing data from the software programs, for example, to support the actions described in the embodiments of the communication device.
  • the communication device may include a baseband processor and a central processing unit (CPU).
  • the baseband processor is primarily used for processing communication protocols and communication data, while the CPU is primarily used for controlling the entire terminal device, executing software programs, and processing data from the software programs.
  • Processor 1311 in Figure 13 can integrate the functions of both a baseband processor and a CPU. Those skilled in the art will understand that the baseband processor and CPU can also be independent processors interconnected via technologies such as buses.
  • a terminal device may include multiple baseband processors to adapt to different network standards, and multiple CPUs to enhance its processing capabilities.
  • Various components of the terminal device can be connected via various buses.
  • the baseband processor can also be described as a baseband processing circuit or a baseband processing chip.
  • the CPU can also be described as a central processing circuit or a central processing chip.
  • the function of processing communication protocols and communication data can be built into the processor or stored in memory as a software program, which is then executed by the processor to implement the baseband processing function.
  • the memory is primarily used to store software programs and data.
  • the memory 1312 can exist independently or be connected to the processor 1311.
  • the memory 1312 can be integrated with the processor 1311, for example, integrated into a single chip.
  • the memory 1312 can store program code that executes the technical solutions of the embodiments of this application, and its execution is controlled by the processor 1311.
  • the various types of computer program code being executed can also be considered as drivers for the processor 1311.
  • Figure 13 shows only one memory and one processor. In actual terminal devices, there may be multiple processors and multiple memories. Memory can also be called storage medium or storage device, etc. Memory can be a storage element on the same chip as the processor, i.e., an on-chip storage element, or it can be a separate storage element; this application does not limit this.
  • Transceiver 1313 can be used to support the reception or transmission of radio frequency (RF) signals between a communication device and a terminal.
  • Transceiver 1313 can be connected to antenna 1315.
  • Transceiver 1313 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 1315 can receive RF signals.
  • the receiver Rx of transceiver 1313 receives the RF signals from the antennas, converts the RF signals into digital baseband signals or digital intermediate frequency (IF) signals, and provides the digital baseband signals or IF signals to processor 1311 so that processor 1311 can perform further processing on the digital baseband signals or IF signals, such as demodulation and decoding.
  • IF intermediate frequency
  • the transmitter Tx in transceiver 1313 is also used to receive modulated digital baseband signals or IF signals from processor 1311, convert the modulated digital baseband signals or IF signals into RF signals, and transmit the RF signals through one or more antennas 1315.
  • the receiver Rx can selectively perform one or more stages of downmixing and analog-to-digital conversion on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency (IF) signal.
  • IF digital intermediate frequency
  • the order of these downmixing and IF conversion processes is adjustable.
  • the transmitter Tx can selectively perform one or more stages of upmixing and digital-to-analog conversion on the modulated digital baseband signal or digital IF signal to obtain a radio frequency signal.
  • the order of these upmixing and IF conversion processes is also adjustable.
  • the digital baseband signal and the digital IF signal can be collectively referred to as digital signals.
  • the transceiver 1313 can also be called a transceiver unit, transceiver, transceiver device, etc.
  • the device in the transceiver unit that performs the receiving function can be regarded as the receiving unit
  • the device in the transceiver unit that performs the transmitting function can be regarded as the transmitting unit. That is, the transceiver unit includes a receiving unit and a transmitting unit.
  • the receiving unit can also be called a receiver, input port, receiving circuit, etc.
  • the transmitting unit can be called a transmitter, transmitter, or transmitting circuit, etc.
  • the communication device 1300 shown in Figure 13 can be used to implement the steps implemented by the network device in the aforementioned method embodiments and to achieve the corresponding technical effects of the network device.
  • the specific implementation of the communication device 1300 shown in Figure 13 can be referred to the description in the aforementioned method embodiments, and will not be repeated here.
  • This application also provides a computer-readable storage medium for storing one or more computer-executable instructions.
  • the processor When the computer-executable instructions are executed by a processor, the processor performs the method described in the possible implementations of the communication device (e.g., a terminal device or a network device) in the foregoing embodiments.
  • This application also provides a computer program product (or computer program) that, when executed by a processor, allows the processor to perform the methods described above for implementing a communication device (e.g., a terminal device or a network device).
  • a communication device e.g., a terminal device or a network device.
  • This application also provides a chip system including at least one processor for supporting a communication device in implementing the functions involved in the possible implementations of the communication device described above.
  • the chip system further includes an interface circuit that provides program instructions and/or data to the at least one processor.
  • the chip system may also include a memory for storing the program instructions and data necessary for the communication device.
  • the chip system may be composed of chips or may include chips and other discrete devices, wherein the communication device may specifically be a terminal device or a network device as described in the foregoing method embodiments.
  • This application also provides a communication system, the network system architecture of which includes a first communication device and a second communication device in any of the above embodiments.
  • the disclosed systems, apparatuses, and methods can be implemented in other ways.
  • the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods.
  • multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.
  • the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between apparatuses or units through some interfaces, and may be electrical, mechanical, or other forms.
  • the units described as separate components may or may not be physically separate.
  • the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
  • the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.
  • the integrated unit can be implemented in hardware or as a software functional unit. If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.
  • the aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

一种参考信号的传输方法及相关装置，在该方法中，第一通信装置接收的第一信息用于配置第一资源，此后，该第一通信装置可以在该第一资源上接收参考信号。其中，在第一资源包含的K个时间单元中，至少两个时间单元的复用端口数量是不同的。通过这种方式，第一资源能够用于传输至少两种复用端口数量的参考信号，能够提升参考信号的传输资源的复用效率，以提升参考信号的传输性能。此外，第一通信装置的数量可以为一个或多个，其中，一个或多个第一通信装置均能够通过第一资源接收参考信号。在第一资源上，不同的第一通信装置均能够接收各自配置的(或期望的)复用端口数量的参考信号，能够匹配不同端口数量的信道。

Description

一种参考信号的传输方法及相关装置
本申请要求于2024年06月28日提交中国国家知识产权局、申请号为CN202410878024.0、发明名称为“一种参考信号的传输方法及相关装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，尤其涉及一种参考信号的传输方法及相关装置。
背景技术
无线通信，可以是两个或两个以上的通信设备间不经由导体或缆线传播而进行的传输通讯。一般地，该两个或两个以上的通信设备包括网络设备和终端设备，或者，该两个或两个以上的通信设备包括不同的终端设备。
目前，不同通信设备可以使用多输入多输出(multi-input multi-output，MIMO)技术进行通信，在该通信过程中，信号发送方可以发送参考信号，相应的，信号接收方可以接收该参考信号，并基于该参考信号进行测量得到信道信息，后续可以基于该信道信息实现高速率的数据传输。
然而，在上述实现过程中，如何提升参考信号的传输性能，是一个亟待解决的技术问题。
发明内容
本申请提供了一种参考信号的传输方法及相关装置，用于提升参考信号的传输性能。
本申请第一方面提供了一种参考信号的传输方法，该方法由第一通信装置执行，该第一通信装置可以是通信设备(如终端设备)，或者，该第一通信装置可以是通信设备中的部分组件(例如负责通信功能的电路或芯片(如调制解调(Modem)芯片(又称基带(baseband)芯片)，片上系统(system on chip,SoC)芯片，比如包含modem核的SoC芯片，或系统级封装(systemin package，SIP)芯片)等)，或者该第一通信装置还可以是能实现全部或部分通信设备功能的逻辑模块或软件。在该方法中，第一通信装置接收第一信息，该第一信息用于配置第一资源，该第一资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该第一通信装置在该第一资源上接收该参考信号。
在第一方面的一种可能的实现方式中，在该K个时间单元中，至少两个时间单元的复用端口数量是不同的。
基于上述方案，第一通信装置接收的第一信息用于配置第一资源，此后，该第一通信装置可以在该第一资源上接收参考信号。其中，在第一资源包含的K个时间单元中，至少两个时间单元的复用端口数量是不同的。通过这种方式，第一资源能够用于传输至少两种复用端口数量的参考信号，能够提升参考信号的传输资源的复用效率，以提升参考信号的传输性能。
此外，第一通信装置的数量可以为一个或多个，其中，一个或多个第一通信装置均能够通过第一资源接收参考信号。在上述方案中，由于在第一资源包含的K个时间单元中的至少两个时间单元的复用端口数量是不同的，为此，在该第一资源上，不同的第一通信装置均能够接收各自配置的(或期望的)复用端口数量的参考信号，能够匹配不同端口数量的信道，提升参考信号的传输资源的复用效率，以提升参考信号的传输性能。
在第一方面的一种可能的实现方式中，该方法还包括：该第一通信装置发送第二信息，该第二信息用于指示该参考信号的测量结果。
基于上述方案，第一通信装置在第一资源上接收参考信号之后，该第一通信装置可以对该参考信号进行测量得到测量结果，并通过发送的第二信息指示该测量结果，使得该第二信息的接收方能够基于该测量结果与进行通信，以提升通信质量。
本申请第二方面提供了一种参考信号的传输方法，该方法由第二通信装置执行，该第二通信装置可以是通信设备(如终端设备或网络设备)，或者，该第二通信装置可以是通信设备中的部分组件(例如负责通信功能的电路或芯片(如Modem芯片(又称baseband芯片)，SoC芯片，比如包含modem核的SoC芯片，或SIP芯片等)，或者该第二通信装置还可以是能实现全部或部分通信设备功能的逻辑模块或软件。在该方法中，第二通信装置发送第一信息，该第一信息用于配置第一资源，该第一资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该第二通信装置在该第一资源上发送该参考信号。
在第二方面的一种可能的实现方式中，在该K个时间单元中，至少两个时间单元的复用端口数量是不同的。
基于上述方案，第二通信装置发送的第一信息用于配置第一资源，此后，该第二通信装置可以在该第一资源上发送参考信号。其中，在第一资源包含的K个时间单元中，至少两个时间单元的复用端口数量是不同的。通过这种方式，第一资源能够用于传输至少两种复用端口数量的参考信号，能够提升参考信号的传输资源的复用效率，以提升参考信号的传输性能。
此外，第一通信装置的数量可以为一个或多个，其中，一个或多个第一通信装置均能够通过第一资源接收参考信号。在上述方案中，由于在第一资源包含的K个时间单元中的至少两个时间单元的复用端口数量是不同的，为此，在该第一资源上，不同的第一通信装置均能够接收各自配置的(或期望的)复用端口数量的参考信号，能够匹配不同端口数量的信道，提升参考信号的传输资源的复用效率，以提升参考信号的传输性能。
本申请中，在K个时间单元中，每个时间单元可以为一个或多个正交频分复用(orthogonal frequency division multiplexing，OFDM)符号，一个或多个时隙、一个或多个子帧、或，一个或多个帧等。
应理解，在K个时间单元中，不同的时间单元对应的时间长度(或，不同的时间单元占用的时域资源大小)可以是相同的，也可以是不同的，此处不做限定。
作为一种示例，该K个时间单元中的每个时间单元(或任一个时间单元、或其中一个时间单元、或至少一个时间单元)为1个OFDM符号、2个OFDM符号、3个OFDM符号或4个OFDM符号。
可选的，在K个时间单元中，任意两个时间单元的复用端口数量是不同的。通过这种方式，能够在第一资源包含的K个时间单元中，尽可能地实现更多的复用端口数量的参考信号的传输，并进一步提升参考信号的传输资源的复用效率。
可选的，在K个时间单元中，任一个(或至少一个)时间单元内的一个或多个OFDM符号，在时域上可以是连续的，也可以是不连续的，此处不做限定。此外，在K个时间单元中，不同的时间单元在时域上可以间隔一个或多个OFDM符号，也可以时域上相邻(即该不同的时间单元在时域上不间隔其它的OFDM符号，或者，该不同的时间单元在时域上间隔的OFDM符号数量为0)。
可选的，在K个时间单元中，任一个(或至少一个)时间单元内上的一个或多个频域单元(或可用频域单元)，在频域上可以是连续的，也可以是不连续的，此处不做限定。此外，在K个时间单元中，不同的时间单元上的频域单元(或可用频域单元)的间隔(或在K个时间单元中，不同的时间单元上的频域密度)可以是相同的，也可以是不同的，此处不做限定。
在第一方面或第二方面的一种可能的实现方式中，在该K个时间单元中，至少两个时间单元的复用端口数量是相同的，或者任意两个时间单元的复用端口数量是相同的。
例如，K个时间单元中的每个时间单元(或任一个时间单元、或其中一个时间单元、或至少一个时间单元)的复用端口数量为8、12、16、24、32、48、64、96、128、192、256或512。
又如，K个时间单元的复用端口总数为16、32、48、64、96、128、192、或256。
又如，K个时间单元的复用端口总数为128、192、256、384、512、768、或1024。
又如，在K个时间单元上，至少两个时间单元的时间长度不同(例如至少两个时间单元占用的符号数量为1和2，或者，至少两个时间单元占用的符号数量为2和4等)。
又如，在K个时间单元上，至少两个时间单元上的频域单元数量不同(例如至少两个时间单元占用的频域单元数量为2和4，或者，至少两个时间单元占用的频域单元数量为4和8等)。
又如，在K个时间单元上，至少两个时间单元对应的码分复用(code division multiplxing，CDM)组不同(例如至少两个时间单元对应的CDM组的大小包括2、4，或者，至少两个时间单元对应的CDM组的大小包括4、8等)。
又如，在K个时间单元上，至少两个时间单元承载的参考信号序列对应的循环移位(cyclic shift，CS)不同。
又如，在K个时间单元上，至少两个时间单元上的资源或序列映射的频域间隔不同。
又如，在K个时间单元上，至少两个时间单元占用的频域宽度不同(例如至少两个时间单元占用的频域宽度包括64个RB、128个RB、272个RB等)。
在第二方面的一种可能的实现方式中，该方法还包括：该第二通信装置接收第二信息，该第二信息用于指示该参考信号的测量结果。
基于上述方案，第一通信装置在第一资源上接收参考信号之后，该第一通信装置可以对该参考信号进行测量得到测量结果，并通过发送的第二信息向第二通信装置指示该测量结果，使得该第二通信装置能够基于该测量结果与进行通信，以提升通信质量。
在第一方面或第二方面的一种可能的实现方式中，该第一信息包括以下至少一项：
第一指示信息，指示该K个时间单元中的每个时间单元的复用端口信息；其中，该复用端口信息用于指示时域码分组、频域码分组、频域间隔、频域起始位置、复用端口数量中的至少一项；
第二指示信息，指示该K个时间单元的每个时间单元包含的符号数量；
第三指示信息，指示该K个时间单元的复用端口总数。
基于上述方案，用于配置第一资源的第一信息可以通过上述多种方式实现，以提升方案实现的灵活性。
在第一方面或第二方面的一种可能的实现方式中，该K个时间单元的复用端口总数为PRS，PRS个端口包括第1个时间单元复用的P0个端口...第K个时间单元复用的PK-1个端口，P0...PK-1均大于1；其中，PRS个端口与该K个时间单元的映射顺序为：
第1个时间单元复用的P0个端口中的前个端口...第K个时间单元复用的PK-1个端口中的前个端口、第1个时间单元复用的P0个端口中的后个端口...第K个时间单元复用的PK-1个端口中的后个端口。
基于上述方案，第一资源包含的K个时间单元的复用端口总数为PRS，并且，该PRS个端口与K个时间单元的映射顺序满足上述过程，使得K个时间单元中的任一时间单元的前一半端口和后一半端口的映射顺序错开(例如K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向)，以兼容不同通信能力(例如通信端口数量不同)的通信装置。
在第一方面或第二方面的一种可能的实现方式中，该K个时间单元满足以下至少一项：
该K个时间单元中的第i时间单元复用的Pi个端口中的后个端口的映射顺序，位于该K个时间单元中的第j时间单元复用的Pj个端口中的前个端口的映射顺序之后，i和j均为1至K中的任一个，Pi和Pj均大于1(或，在K个时间单元中，任一时间单元的复用端口的后一半端口的映射顺序，位于任一时间单元的复用端口的前一半端口的映射顺序之后)；
该K个时间单元中的第i+1时间单元复用的Pi+1个端口中的前个端口的映射顺序，位于该K个时间单元中的第i时间单元复用的Pi个端口中的前个端口的映射顺序之后(或，在K个时间单元中，任一时间单元的复用端口的前一半端口的映射顺序，位于该任一时间单元相邻的下一个时间单元的复用端口的前一半端口的映射顺序之后)；
该K个时间单元中的第i+1时间单元复用的Pi+1个端口中的后个端口的映射顺序，位于该K个时间单元中的第i时间单元复用的Pi个端口中的后个端口的映射顺序之后(或，在K个时间单元中，任一时间单元的复用端口的后一半端口的映射顺序，位于该任一时间单元相邻的下一个时间单元的复用端口的后一半端口的映射顺序之后)。
基于上述方案，K个时间单元中的第i个时间单元复用的端口的映射顺序满足上述至少一项，使得K个时间单元中的同一时间单元的前一半端口和后一半端口的映射顺序错开(例如K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向)，以兼容不同通信能力(例如通信端口数量不同)的通信装置。
在第一方面或第二方面的一种可能的实现方式中，该K个时间单元中的第k个时间单元的复用端口数量为Pk，k取值为0至K-1，Pk大于1；其中，在Pk个端口中，至少两个端口的极化方向是不同的。或者，在该Pk个端口中，端口0至端口的极化方向为第一极化方向，端口至端口的极化方向为第二极化方向。
基于上述方案，K个时间单元中的第k个时间单元复用的Pk个端口中，至少两个端口的极化方向是不同的，使得K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向，以兼容不同通信能力(例如通信端口数量不同)的通信装置。
在第一方面或第二方面的一种可能的实现方式中，该参考信号是基于ZC(Zadoff-Chu)序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。
基于上述方案，第一资源上传输的参考信号可以是基于ZC序列生成的，或，基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。相比于仅通过Gold序列生成的参考信号的情况下，参考信号的接收端的检测复杂度较高的实现方式；在上述过程中，第一资源上传输的参考信号至少是基于ZC序列生成的，能够利用ZC序列具有包络恒定的特点以及循环移位的特点，可以在一次接收检测内识别多个端口，从而降低参考信号的接收端的检测复杂度。
可选的，该参考信号(或该参考信号的序列)满足：
或，
或，
或，
或，
xu[m]＝exp(-j2πm×CS)；或，
xu[m]＝exp(-j2πm×CS)×r(m)；
其中，xu[m]表示该参考信号(或该参考信号的序列)，N为映射的频域数量，NZC为序列长度，j为虚数单位，u为根序列索引，CS为循环移位(cyclic shift)值，r(m)表示Gold序列。
应理解，在参考信号满足前两项(即 或，)的情况下，该参考信号或该参考信号的序列可以为ZC序列。在参考信号满足后两项(即 或，)的情况下，该参考信号或该参考信号的序列可以为ZC序列和Gold序列联合得到的。
本申请第三方面提供了一种参考信号的传输方法，该方法由第一通信装置执行，该第一通信装置可以是通信设备(如终端设备或网络设备)，或者，该第一通信装置可以是通信设备中的部分组件(例如负责通信功能的电路或芯片(如Modem芯片(又称baseband芯片)，SoC芯片，比如包含modem核的SoC芯片，或SIP芯片)等)，或者该第一通信装置还可以是能实现全部或部分通信设备功能的逻辑模块或软件。在该方法中，第一通信装置接收第三信息，该第三信息用于配置第二资源，该第二资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该第一通信装置在该第二资源上接收该参考信号。此外，满足以下方式一至方式四中的任一方式：
方式一、该K个时间单元的复用端口总数为PRS，PRS个端口包括第1个时间单元复用的P0个端口...第K个时间单元复用的PK-1个端口，P0...PK-1均大于1；其中，PRS个端口与该K个时间单元的映射顺序为：第1个时间单元复用的P0个端口中的前个端口...第K个时间单元复用的PK-1个端口中的前个端口、第1个时间单元复用的P0个端口中的后个端口...第K个时间单元复用的PK-1个端口中的后个端口。
方式二、该K个时间单元满足以下至少一项：
该K个时间单元中的第i时间单元复用的Pi个端口中的后个端口的映射顺序，位于该K个时间单元中的第j时间单元复用的Pj个端口中的前个端口的映射顺序之后，i和j均为1至K中的任一个，Pi和Pj均大于1；
该K个时间单元中的第i+1时间单元复用的Pi+1个端口中的前个端口的映射顺序，位于该K个时间单元中的第i时间单元复用的Pi个端口中的前个端口的映射顺序之后；
该K个时间单元中的第i+1时间单元复用的Pi+1个端口中的后个端口的映射顺序，位于该K个时间单元中的第i时间单元复用的Pi个端口中的后个端口的映射顺序之后。
方式三、该K个时间单元中的第k个时间单元的复用端口数量为Pk，k取值为0至K-1，Pk大于1；
其中，在Pk个端口中，至少两个端口的极化方向是不同的。
方式四、在该Pk个端口中，端口0至端口的极化方向为第一极化方向，端口至端口的极化方向为第二极化方向。
基于上述方式一，第二资源包含的K个时间单元的复用端口总数为PRS，并且，该PRS个端口与K个时间单元的映射顺序满足上述过程，使得K个时间单元中的任一时间单元的前一半端口和后一半端口的映射顺序错开(例如K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向)，以兼容不同通信能力(例如通信端口数量不同)的通信装置。
基于上述方式二，K个时间单元中的第i个时间单元复用的端口的映射顺序满足上述至少一项，使得K个时间单元中的同一时间单元的前一半端口和后一半端口的映射顺序错开(例如K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向)，以兼容不同通信能力(例如通信端口数量不同)的通信装置。
基于上述方式三或方式四，K个时间单元中的第k个时间单元复用的Pk个端口中，至少两个端口的极化方向是不同的，使得K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向，以兼容不同通信能力(例如通信端口数量不同)的通信装置。
本申请第四方面提供了一种参考信号的传输方法，该方法由第二通信装置执行，该第二通信装置可以是通信设备(如终端设备或网络设备)，或者，该第二通信装置可以是通信设备中的部分组件(例如负责通信功能的电路或芯片(如Modem芯片(又称baseband芯片)，SoC芯片，比如包含modem核的SoC芯片，或SIP芯片等)，或者该第二通信装置还可以是能实现全部或部分通信设备功能的逻辑模块或软件。在该方法中，第二通信装置发送第三信息，该第三信息用于配置第二资源，该第二资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该第二通信装置在该第二资源上发送该参考信号。
此外，满足以下方式一至方式四中的任一方式：
方式一、K个时间单元的复用端口总数为PRS，PRS个端口包括第1个时间单元复用的P0个端口...第K个时间单元复用的PK-1个端口，P0...PK-1均大于1；其中，PRS个端口与该K个时间单元的映射顺序为：第1个时间单元复用的P0个端口中的前个端口...第K个时间单元复用的PK-1个端口中的前个端口、第1个时间单元复用的P0个端口中的后个端口...第K个时间单元复用的PK-1个端口中的后个端口。
方式二、K个时间单元满足以下至少一项：
该K个时间单元中的第i时间单元复用的Pi个端口中的后个端口的映射顺序，位于该K个时间单元中的第j时间单元复用的Pj个端口中的前个端口的映射顺序之后，i和j均为1至K中的任一个，Pi和Pj均大于1(或，在K个时间单元中，任一时间单元的复用端口的后一半端口的映射顺序，位于任一时间单元的复用端口的前一半端口的映射顺序之后)；
该K个时间单元中的第i+1时间单元复用的Pi+1个端口中的前个端口的映射顺序，位于该K个时间单元中的第i时间单元复用的Pi个端口中的前个端口的映射顺序之后(或，在K个时间单元中，任一时间单元的复用端口的前一半端口的映射顺序，位于该任一时间单元相邻的下一个时间单元的复用端口的前一半端口的映射顺序之后)；
该K个时间单元中的第i+1时间单元复用的Pi+1个端口中的后个端口的映射顺序，位于该K个时间单元中的第i时间单元复用的Pi个端口中的后个端口的映射顺序之后(或，在K个时间单元中，任一时间单元的复用端口的后一半端口的映射顺序，位于该任一时间单元相邻的下一个时间单元的复用端口的后一半端口的映射顺序之后)。
方式三、K个时间单元中的第k个时间单元的复用端口数量为Pk，k取值为0至K-1，Pk大于1；其中，在Pk个端口中，至少两个端口的极化方向是不同的。
方式四、K个时间单元中的第k个时间单元的复用端口数量为Pk，k取值为0至K-1，Pk大于1；其中，在Pk个端口中，端口0至端口的极化方向为第一极化方向，端口至端口的极化方向为第二极化方向。
基于上述方式一，第二资源包含的K个时间单元的复用端口总数为PRS，并且，该PRS个端口与K个时间单元的映射顺序满足上述过程，使得K个时间单元中的任一时间单元的前一半端口和后一半端口的映射顺序错开(例如K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向)，以兼容不同通信能力(例如通信端口数量不同)的通信装置。
基于上述方式二，K个时间单元中的第i个时间单元复用的端口的映射顺序满足上述至少一项，使得K个时间单元中的同一时间单元的前一半端口和后一半端口的映射顺序错开(例如K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向)，以兼容不同通信能力(例如通信端口数量不同)的通信装置。
基于上述方式三或方式四，K个时间单元中的第k个时间单元复用的Pk个端口中，至少两个端口的极化方向是不同的，使得K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向，以兼容不同通信能力(例如通信端口数量不同)的通信装置。
在第三方面或第四方面的一种可能的实现方式中，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。
基于上述方案，第一资源上传输的参考信号可以是基于ZC序列生成的，或，基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。相比于仅通过Gold序列生成的参考信号的情况下，参考信号的接收端的检测复杂度较高的实现方式；在上述过程中，第一资源上传输的参考信号至少是基于ZC序列生成的，能够利用ZC序列具有包络恒定的特点以及循环移位的特点，可以在一次接收检测内识别多个端口，从而降低参考信号的接收端的检测复杂度。
可选的，该参考信号(或该参考信号的序列)满足：
或，
或，
或，
或，
xu[m]＝exp(-j2πm×CS)；或，
xu[m]＝exp(-j2πm×CS)×r(m)；
其中，xu[m]表示该参考信号(或该参考信号的序列)，N为映射的频域数量，NZC为序列长度，j为虚数单位，u为根序列索引，CS为循环移位值，r(m)表示Gold序列。
应理解，在参考信号满足前两项(即 或，)的情况下，该参考信号或该参考信号的序列可以为ZC序列。在参考信号满足后两项(即 或，)的情况下，该参考信号或该参考信号的序列可以为ZC序列和Gold序列联合得到的。
本申请第五方面提供了一种参考信号的传输方法，该方法由第一通信装置执行，该第一通信装置可以是通信设备(如终端设备或网络设备)，或者，该第一通信装置可以是通信设备中的部分组件(例如负责通信功能的电路或芯片(如Modem芯片(又称baseband芯片)，SoC芯片，比如包含modem核的SoC芯片，或SIP芯片)等)，或者该第一通信装置还可以是能实现全部或部分通信设备功能的逻辑模块或软件。在该方法中，第一通信装置接收第四信息，该第四信息用于配置第三资源，该第三资源用于承载参考信号；其中，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的；该第一通信装置在该第三资源上接收该参考信号。
基于上述方案，第三资源上传输的参考信号可以是基于ZC序列生成的，或，基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。相比于仅通过Gold序列生成的参考信号的情况下，参考信号的接收端的检测复杂度较高的实现方式；在上述过程中，第三资源上传输的参考信号至少是基于ZC序列生成的，能够利用ZC序列具有包络恒定的特点以及循环移位的特点，可以在一次接收检测内识别多个端口，从而降低参考信号的接收端的检测复杂度。
本申请第六方面提供了一种参考信号的传输方法，该方法由第二通信装置执行，该第二通信装置可以是通信设备(如终端设备或网络设备)，或者，该第二通信装置可以是通信设备中的部分组件(例如负责通信功能的电路或芯片(如Modem芯片(又称baseband芯片)，SoC芯片，比如包含modem核的SoC芯片，或SIP芯片等)，或者该第二通信装置还可以是能实现全部或部分通信设备功能的逻辑模块或软件。在该方法中，第二通信装置发送第四信息，该第四信息用于配置第三资源，该第三资源用于承载参考信号；其中，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的；该第二通信装置在该第三资源上发送该参考信号。
基于上述方案，第三资源上传输的参考信号可以是基于ZC序列生成的，或，基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。相比于仅通过Gold序列生成的参考信号的情况下，参考信号的接收端的检测复杂度较高的实现方式；在上述过程中，第三资源上传输的参考信号至少是基于ZC序列生成的，能够利用ZC序列具有包络恒定的特点以及循环移位的特点，可以在一次接收检测内识别多个端口，从而降低参考信号的接收端的检测复杂度。
本申请第七方面提供了一种参考信号的传输方法，该方法由第一通信装置执行，该第一通信装置可以是通信设备(如终端设备或网络设备)，或者，该第一通信装置可以是通信设备中的部分组件(例如负责通信功能的电路或芯片(如Modem芯片(又称baseband芯片)，SoC芯片，比如包含modem核的SoC芯片，或SIP芯片)等)，或者该第一通信装置还可以是能实现全部或部分通信设备功能的逻辑模块或软件。在该方法中，第一通信装置生成参考信号，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的；该第一通信装置发送该参考信号。
基于上述方案，参考信号可以是基于ZC序列生成的，或，基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。相比于仅通过Gold序列生成的参考信号的情况下，参考信号的接收端的检测复杂度较高的实现方式；在上述过程中，第三资源上传输的参考信号至少是基于ZC序列生成的，能够利用ZC序列具有包络恒定的特点以及循环移位的特点，可以在一次接收检测内识别多个端口，从而降低参考信号的接收端的检测复杂度。
本申请第八方面提供了一种参考信号的传输方法，该方法由第二通信装置执行，该第二通信装置可以是通信设备(如终端设备或网络设备)，或者，该第二通信装置可以是通信设备中的部分组件(例如负责通信功能的电路或芯片(如Modem芯片(又称baseband芯片)，SoC芯片，比如包含modem核的SoC芯片，或SIP芯片等)，或者该第二通信装置还可以是能实现全部或部分通信设备功能的逻辑模块或软件。在该方法中，第二通信装置接收参考信号，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。
基于上述方案，第三资源上传输的参考信号可以是基于ZC序列生成的，或，基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。相比于仅通过Gold序列生成的参考信号的情况下，参考信号的接收端的检测复杂度较高的实现方式；在上述过程中，第三资源上传输的参考信号至少是基于ZC序列生成的，能够利用ZC序列具有包络恒定的特点以及循环移位的特点，可以在一次接收检测内识别多个端口，从而降低参考信号的接收端的检测复杂度。
可选的，参考信号(或该参考信号的序列)满足：
或，
或，
或，
或，
xu[m]＝exp(-j2πm×CS)；或，
xu[m]＝exp(-j2πm×CS)×r(m)；
其中，xu[m]表示该参考信号(或该参考信号的序列)，N为映射的频域数量，NZC为序列长度，j为虚数单位，u为根序列索引，CS为循环移位值，r(m)表示Gold序列。
应理解，在参考信号满足前两项(即 或，)的情况下，该参考信号或该参考信号的序列可以为ZC序列。在参考信号满足后两项(即 或，)的情况下，该参考信号或该参考信号的序列可以为ZC序列和Gold序列联合得到的。
本申请第九方面提供了一种通信装置，该通信装置为第一通信装置，该通信装置包括收发单元和处理单元；该收发单元用于接收第一信息，该第一信息用于配置第一资源，该第一资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该处理单元用于控制该收发单元在该第一资源上接收该参考信号。
本申请第九方面中，通信装置的组成模块还可以用于执行第一方面的各个可能实现方式中所执行的步骤，并实现相应的技术效果，具体均可以参阅第一方面，此处不再赘述。
本申请第十方面提供了一种通信装置，该通信装置为第二通信装置，该通信装置包括收发单元和处理单元；该处理单元用于确定第一信息；该收发单元用于发送第一信息，该第一信息用于配置第一资源，该第一资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该收发单元还用于在该第一资源上发送该参考信号。
本申请第十方面中，通信装置的组成模块还可以用于执行第二方面的各个可能实现方式中所执行的步骤，并实现相应的技术效果，具体均可以参阅第二方面，此处不再赘述。
本申请第十一方面提供了一种通信装置，该通信装置为第一通信装置，该通信装置包括收发单元和处理单元；该收发单元用于接收第三信息，该第三信息用于配置第二资源，该第二资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该处理单元用于控制该收发单元在该第二资源上接收该参考信号。
本申请第十一方面中，通信装置的组成模块还可以用于执行第三方面的各个可能实现方式中所执行的步骤，并实现相应的技术效果，具体均可以参阅第三方面，此处不再赘述。
本申请第十二方面提供了一种通信装置，该通信装置为第二通信装置，该通信装置包括收发单元和处理单元；该处理单元用于确定第三信息；该收发单元用于发送第三信息，该第三信息用于配置第二资源，该第二资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该收发单元还用于在该第二资源上发送该参考信号。
本申请第十二方面中，通信装置的组成模块还可以用于执行第四方面的各个可能实现方式中所执行的步骤，并实现相应的技术效果，具体均可以参阅第四方面，此处不再赘述。
本申请第十三方面提供了一种通信装置，该通信装置为第一通信装置，该通信装置包括收发单元和处理单元；该收发单元用于接收第四信息，该第四信息用于配置第三资源，该第三资源用于承载参考信号；其中，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的；该处理单元用于控制该收发单元在该第三资源上接收该参考信号。
本申请第十三方面中，通信装置的组成模块还可以用于执行第五方面的各个可能实现方式中所执行的步骤，并实现相应的技术效果，具体均可以参阅第五方面，此处不再赘述。
本申请第十四方面提供了一种通信装置，该通信装置为第二通信装置，该通信装置包括收发单元和处理单元；该处理单元用于确定第四信息；该收发单元用于发送第四信息，该第四信息用于配置第三资源，该第三资源用于承载参考信号；其中，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的；该收发单元还用于在该第三资源上发送该参考信号。
本申请第十四方面中，通信装置的组成模块还可以用于执行第六方面的各个可能实现方式中所执行的步骤，并实现相应的技术效果，具体均可以参阅第六方面，此处不再赘述。
本申请第十五方面提供了一种通信装置，该通信装置为第一通信装置，该通信装置包括收发单元和处理单元；该处理单元用于生成参考信号，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的；该收发单元用于发送该参考信号。
本申请第十五方面中，通信装置的组成模块还可以用于执行第七方面的各个可能实现方式中所执行的步骤，并实现相应的技术效果，具体均可以参阅第七方面，此处不再赘述。
本申请第十六方面提供了一种通信装置，该通信装置为第二通信装置，该通信装置包括收发单元和处理单元；该收发单元用于接收参考信号，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。
本申请第十六方面中，通信装置的组成模块还可以用于执行第八方面的各个可能实现方式中所执行的步骤，并实现相应的技术效果，具体均可以参阅第八方面，此处不再赘述。
本申请第十七方面提供了一种通信装置，包括至少一个处理器，该至少一个处理器用于执行计算机程序或指令，以使该通信装置实现前述第一方面至第八方面任一方面中的任意一种可能的实现方式所述的方法。可选的，该通信装置可以包括存储器或该通信装置外接存储器，该存储器用于存储上述计算机程序或指令。
本申请第十八方面提供了一种通信装置，包括至少一个逻辑电路和输入输出接口；该逻辑电路用于执行如前述第一方面至第八方面任一方面中的任意一种可能的实现方式所述的方法。
本申请第十九方面提供了一种通信系统，该通信系统包括上述第一通信装置以及第二通信装置。
本申请第二十方面提供一种计算机可读存储介质，该存储介质用于存储一个或多个计算机执行指令，当计算机执行指令被处理器执行时，该处理器执行如上述第一方面至第八方面中任一方面的任意一种可能的实现方式所述的方法。
本申请第二十一方面提供一种计算机程序产品(或称计算机程序)，当计算机程序产品中的计算机程序或指令被该处理器执行时，该处理器执行上述第一方面至第八方面中任一方面的任意一种可能的实现方式所述的方法。
本申请第二十二方面提供了一种芯片系统，该芯片系统包括至少一个处理器，用于支持通信装置实现上述第一方面至第八方面中任一方面的任意一种可能的实现方式所述的方法。
在一种可能的设计中，该芯片系统还可以包括存储器，存储器，用于保存该通信装置必要的程序指令和数据。该芯片系统，可以由芯片构成，也可以包含芯片和其他分立器件。可选的，所述芯片系统还包括接口电路，所述接口电路为所述至少一个处理器提供程序指令和/或数据。
其中，第九方面至第二十二方面中任一种设计方式所带来的技术效果可参见上述第一方面至第八方面中不同设计方式所带来的技术效果，在此不再赘述。
附图说明
图1为本申请涉及的通信系统的一个示意图；
图2为本申请涉及的参考信号的收发过程的一个示意图；
图3为本申请涉及的承载参考信号的时频域资源的一个示意图；
图4为本申请提供的参考信号的传输方法的一个示意图；
图5a和图5b为本申请提供的承载参考信号的时频域资源的另一个示意图；
图6a和图6b和图6c和图6d为本申请提供的承载参考信号的时频域资源的一些示意图；
图7为本申请提供的参考信号的传输方法的另一个示意图；
图8为本申请提供的参考信号的传输方法的另一个示意图；
图9为本申请提供的参考信号的传输方法的另一个示意图；
图10为本申请提供的通信装置的一个示意图；
图11为本申请提供的通信装置的另一个示意图；
图12为本申请提供的通信装置的另一个示意图；
图13为本申请提供的通信装置的另一个示意图。
具体实施方式
首先，对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
(1)配置与预配置：在本申请中，会同时用到配置与预配置。配置是指基站或服务器等网络设备通过消息或信令将一些参数的配置信息或参数的取值发送给终端，以便终端根据这些取值或信息来确定通信的参数或传输时的资源。预配置与配置类似，它可以是基站或服务器等网络设备通过通信链路或载波把参数信息或取值发送给终端的方式；也可以是在标准中给出相应的参数或参数值的定义，或通过提前将相关的参数或取值设置到终端设备中的方式，本申请对此不做限定。进一步地，这些取值和参数，是可以变化或更新的。
(2)在本申请中，“用于指示”可以包括用于直接指示和用于间接指示。当描述某一指示信息用于指示A时，可以理解为该指示信息携带A、直接指示A或间接指示A。
本申请中，指示信息所指示的信息，称为待指示信息。在具体实现过程中，对待指示信息进行指示的方式有很多种，例如，可以通过直接指示的方式实现，如通过待指示信息本身或者该待指示信息的索引进行指示等。也可以通过指示其他信息来间接指示的方式实现，其中，该其他信息与待指示信息之间存在关联关系。还可以仅仅指示待指示信息的一部分，而待指示信息的其他部分则是已知的或者提前约定的。例如，还可以借助预先约定(例如协议规定)的各个信息的排列顺序来实现对特定信息的指示，从而在一定程度上降低指示开销。
待指示信息可以作为一个整体一起发送，也可以分成多个子信息分开发送，而且这些子信息的发送周期和/或发送时机可以相同，也可以不同。具体发送方法本申请不进行限定。其中，这些子信息的发送周期和/或发送时机可以是预先定义的，例如根据协议预先定义的，也可以是发射端设备通过向接收端设备发送配置信息来配置的。其中，该配置信息可以例如但不限于包括无线资源控制(radio resource control，RRC)信令、媒体/介质接入控制(media/medium access control，MAC)层信令和物理层信令中的一种或者至少两种的组合。其中，MAC层信令例如包括MAC控制元素(control element，CE)；物理层信令例如包括下行控制信息(downlink control information，DCI)。
(3)参考信号(reference signal，RS)，又称导频信号。在通信系统中，为了发送和接收数据、获取系统同步和反馈信道信息，估计上行链路信道或下行链路信道较为必要。信道估计指的是为了补偿信道衰落和噪声产生衰落所引起的信号失真而重建或恢复接收信号的过程，它利用发送机与接收机预知的基准信号来追踪信道的时域和频域变化。上述基准信号又称做参考信号，它们在正交频分复用(orthogonal frequency division multiplexing，OFDM)符号内分布于时频二维空间中不同的资源单元(resource element，RE)上，具有已知的幅度和相位。
在物理层，上行通信可以包括上行物理信道和上行信号的传输。其中，上行物理信道包括随机接入信道(random access channel，PRACH)，物理上行控制信道(physical uplink control channel，PUCCH)，物理上行共享信道(physical uplink shared channel，PUSCH)等，上行信号包括信道探测参考信号(sounding reference signal，SRS)，物理上行控制信道解调参考信号(PUCCH de-modulation reference signal，PUCCH-DMRS)，物理上行共享信道解调参考信号(PUSCH-DMRS)，解调参考信号(Demodulation Reference Signal，DMRS)，相位跟踪信号(phase tracking reference signal，PTRS)，定位参考信号(例如：positioning SRS or SRS for positioning)等。
在物理层，下行通信可以包括下行物理信道和下行信号的传输。其中，下行物理信道包括物理广播信道(physical broadcast channel，PBCH)，物理下行控制信道(physical downlink control channel，PDCCH)，物理下行共享信道(physical downlink shared channel，PDSCH)等，下行信号包括主同步信号(primary synchronization signal，简称PSS)/辅同步信号(secondary synchronization signal，SSS)，物理下行控制信道解调参考信号(PDCCH-DMRS)，物理下行共享信道解调参考信号(PDSCH-DMRS)，PTRS，信道状态信息参考信号(channel state information reference signal，CSI-RS)，小区参考信号(Cell reference signal，CRS)，跟踪同步信号(tracking reference signal，TRS)，定位参考信号(positioning RS)，同步信号/物理广播信道块(synchronization signal/physical broadcast channel block，SS/PBCH block，简称SSB)等。
(4)本申请实施例中的术语“系统”和“网络”可被互换使用。“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A、同时存在A和B、单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如“A，B和C中的至少一个”包括A，B，C，AB，AC，BC或ABC。以及，除非有特别说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。
(5)本申请实施例中的“发送”和“接收”，表示信号传递的走向。例如，“向X设备发送信息”可以理解为该信息的目的端是X设备，可以包括通过空口直接发送，也包括其他单元或模块通过空口间接发送。“接收来自Y设备的信息”可以理解为该信息的源端是Y设备，可以包括通过空口直接从Y设备接收，也可以包括通过空口从其他单元或模块间接地从Y设备接收。“发送”也可以理解为芯片接口的“输出”，“接收”也可以理解为芯片接口的“输入”。
示例性的，以实体A和实体B之间的通信过程为例。在本申请中，实体A向实体B发送信息，可以是A直接向B发送，也可以是A经过其它实体间接地向B发送。同样的，实体B接收来自实体A的信息，可以是实体B直接接收实体A发送的信息，也可以是实体B通过其它实体间接地接收实体A发送的信息。这里的实体A和B可以是无线接入网(radio access network，RAN)节点或终端，也可以是RAN节点或终端内部的模块。信息的发送与接收可以是RAN节点与终端之间的信息交互，例如，基站与终端之间的信息交互；信息的发送与接收也可以是两个RAN节点之间的信息交互，例如集中单元(centralized unit，CU)和分布单元(distributed unit，DU)之间的信息交互；信息的发送与接收还可以是在一个装置内部不同模块之间的信息交互，例如，终端芯片与终端其它模块之间的信息交互，或者，基站芯片与该基站中其它模块之间的信息交互。
(6)预编码技术：发送端可以在已知信道状态的情况下，借助与信道相匹配的预编码矩阵来对待发送信号进行处理后发送，使得经过预编码的发送信号与信道相适配。从而，相比于接收端接收未经过预编码的发送信号并消除信道间影响的处理过程，接收端接收经过预编码的发送信号并消除信道间影响的处理过程的复杂度降低。因此，通过对待发送信号的预编码处理，接收信号质量(例如信号与干扰加噪声比(signal to interference plus noise ratio，SINR)等)得以提升。采用预编码技术，还可以实现发送端与多个接收端在相同的时频资源上传输，也就是实现了多用户多输入多输出(multiple user multiple input multiple output，MU-MIMO)。
可选地，该发送端可以为网络设备，该接收端可以为终端设备；或，该发送端可以为终端设备，该接收端可以为终端设备。
一种实现方式中，采用多输入多输出(Multiple Input Multiple Output，MIMO)技术增加系统容量，提升吞吐率。数学表达式为y＝Hx+n，其中y为接收信号，H为MIMO信道的信道信息，x为发送信号，n为噪声。在具有多天线的通信系统中，多个发送天线的信号会叠加到任意一个接收天线上，因此发送端发送信号的方法影响到系统的性能，而且在接收端恢复发送信号时，往往比较复杂。在这个背景下，预编码(Precoding)一方面用于减少系统开销，最大提升MIMO的系统容量，另一方面用于降低接收机消除信道间影响实现的复杂度。此时，数学表达为y＝HPx+n，P为预编码矩阵(或向量)。为了简化实现复杂度，P为可以从一个预定义的矩阵(或向量)集合中选取，该集合被称为码本(Codebook)，该方法也被称为基于码本的发送方法。如果发送端可以获知H的全部信息，则P可以在发送端自行获取，该方法也被称为非码本的发送方法(Non-codebook,NCB)。
应理解，有关预编码技术的相关描述仅为便于理解而示例，并非用于限制本申请实施例的保护范围。在具体实现过程中，发送端还可以通过其他方式进行预编码。例如，在无法获知信道信息(例如但不限于信道矩阵)的情况下，采用预先设置的预编码矩阵或者加权处理方式进行预编码等。为了简洁，其具体内容本文不再赘述。
(7)预编码矩阵指示(PMI)：可用于指示预编码矩阵。其中，预编码矩阵例如可以是终端设备基于一个频域单元的信道矩阵确定的预编码矩阵。该信道矩阵可以是终端设备通过信道估计等方式或者基于信道互易性确定。但应理解，终端设备确定预编码矩阵的具体方法并不限于上文所述，为了简洁，这里不再一一列举。
例如，预编码矩阵可以通过对信道矩阵或信道矩阵的协方差矩阵进行奇异值分解(singular value decomposition，SVD)的方式获得，或者，也可以通过对信道矩阵的协方差矩阵进行特征值分解(eigenvalue decomposition，EVD)的方式获得。应理解，上文中列举的预编码矩阵的确定方式仅为示例，不应对本申请构成任何限定。
需要说明的是，由本申请实施例提供的方法，网络设备可以基于终端设备的反馈确定用于构建预编码向量的信道状态信息(channel state information，CSI)RS端口、频域离散傅里叶变换(discrete fourier transformation，DFT)向量以及空频向量的合并系数，进而确定与各频域单元对应的预编码矩阵。该预编码矩阵可以直接用于下行数据传输；也可以经过一些波束成形方法，例如包括迫零(zero forcing，ZF)、正则化迫零(regularized zero-forcing，RZF)、最小均方误差(minimum mean-squared error，MMSE)、最大化信漏噪比(signal-to-leakage-and-noise，SLNR)等，以得到最终用于下行数据传输的预编码矩阵。本申请对此不作限定。在未作出特别说明的情况下，下文中所涉及的预编码矩阵均可以是指基于本申请提供的方法所确定的预编码矩阵。
可以理解的是，终端设备所确定的预编码矩阵可以理解为待反馈的预编码矩阵。终端设备可以通过预编码矩阵指示(precoding matrix indicator，PMI)指示待反馈的预编码矩阵，以便于网络设备基于PMI恢复出该预编码矩阵。可以理解，网络设备基于PMI恢复出的预编码矩阵可以与上述待反馈的预编码矩阵相同或相近。
在下行信道测量中，网络设备根据PMI确定出的预编码矩阵与终端设备所确定的预编码矩阵的近似度越高，其确定出的用于数据传输的预编码矩阵也就越能够与信道状态相适配，因此也就能够提高信号的接收质量。
(8)天线端口：可简称端口。可以理解为被接收端所识别的发射天线，或者在空间上可以区分的发射天线。针对每个虚拟天线可以预配置一个天线端口，每个虚拟天线可以为多个物理天线的加权组合，每个天线端口可以与一个参考信号对应，因此，每个天线端口可以称为一个参考信号的端口，例如，CSI-RS端口、解调参考信号(demodulation deference signal，DMRS)、SRS端口等。
其中，天线端口是一个逻辑概念，一个天线端口与一个物理天线一般没有直接对应关系。天线端口通常和参考信号关联，其意义可以理解为参考信号所经历的信道上的一个收发接口。对于低频，一个天线端口可能对应一个或多个天线阵元，这些阵元联合发送参考信号，接收端可以把它们当做一个整体，不需要区分这些阵元。对于高频系统，天线端口可能对应着一个波束，同样的，接收端只需要将这个波束视为一个接口，不需要区分每个阵元。
此外，端口组可以指多个天线端口对应的集合。一种方式是，将网络设备的多个数字端口进行分组，从而形成多个端口组。另一方式下(尤其是混合数字模拟波束架构下)，端口组可以是同一个模拟波束对应的多个数字端口，也简称为端口组，或者数模端口组。再或者，端口组可以是多个模拟波束对应的数字端口集合，也简称为端口组，或者数模端口组。再或者，同一个模拟波束的多个数字端口被分为多个子集，每一个子集称为端口组，或者数模端口组。
(9)信道状态信息(CSI)报告(report)：在无线通信系统中，由接收端(如终端设备)向发送端(如网络设备)上报的用于描述通信链路的信道属性的信息。CSI报告中例如可以包括但不限于，预编码矩阵指示(PMI)、秩指示(RI)、信道质量指示(channel quality indicator，CQI)、信道状态信息参考信号(channel state information reference signal，CSI-RS)，CSI-RS资源指示(CSI-RS resource indicator，CRI)以及层指示(layer indicator，LI)等。应理解，以上列举的CSI的具体内容仅为示例性说明，不应对本申请构成任何限定。CSI可以包括上文所列举的一项或多项，也可以包括除上述列举之外的其他用于表征CSI的信息，本申请对此不作限定。
(10)波束。其中，波束(beam)和波束对(beam pair link，BPL)被引入到通信系统中。波束是一种通信资源。波束可以分为发送波束和接收波束。形成波束的技术可以是波束赋形技术或者其他技术手段。波束赋形包括发送波束赋形和接收波束赋形。
其中，波束是一种通信资源。波束可以是宽波束，或者窄波束，或者其他类型波束。形成波束的技术可以是波束成形技术或者其他技术手段。波束成形技术可以具体为数字波束成形技术，模拟波束成形技术，混合数字/模拟波束成形技术。不同的波束可以认为是不同的资源。通过不同的波束可以发送相同的信息或者不同的信息。可选的，可以将具有相同或者类似的通信特征的多个波束视为是一个波束。一个波束内可以包括一个或多个天线端口，用于传输数据信道，控制信道和探测信号等，例如，发射波束可以是指信号经天线发射出去后在空间不同方向上形成的信号强度的分布，接收波束可以是指从天线上接收到的无线信号在空间不同方向上的信号强度分布。可以理解的是，形成一个波束的一个或多个天线端口也可以看作是一个天线端口集。波束在协议中的体现还是可以空域滤波器(spatial filter)。
发送波束：发送端设备以一定的波束赋形权值发送信号，使发送信号形成的具有空间指向性的波束。其中，在上行方向上，发送端设备可以是终端；在下行方向上，发送端设备可以是网络设备。
接收波束：接收端设备以一定的波束赋形权值接收信号，使接收信号形成的具有空间指向性的波束。其中，在上行方向上，接收端设备可以是网络设备；在下行方向上，接收端设备可以是终端。
发送波束赋形：具有天线阵列的发送端设备发送信号时，在天线阵列的每个天线阵子上设置一个特定的幅度和相位，使得发送信号具有一定的空间指向性，即在某些方向上信号功率高，在某些方向上信号功率低，信号功率最高的方向即为发送波束的方向。该天线阵列包括多个天线阵子，所附加的特定的幅度和相位即为波束赋形权值。
接收波束赋形：具有天线阵列的接收端设备接收信号时，在天线阵列的每个天线阵子上设置一个特定的幅度和相位，使得接收信号的功率增益具有方向性，即接收某些方向上的信号时功率增益高，接收某些方向上的信号时功率增益低，接收信号时功率增益最高的方向就是接收波束的方向。该天线阵列包括多个天线阵子，所附加的特定的幅度和相位即为波束赋形权值。
可选地，使用某个发送波束发送信号，可以理解为，使用某个波束赋形权值发送信号。
可选地，使用某个接收波束接收信号，可以理解为，使用某个波束赋形权值接收信号。
一般地，不同的波束可以认为是不同的资源。使用(或通过)不同的波束可以发送相同的信息或者不同的信息。波束对建立在波束的概念上。一个波束对通常包括发送端设备的一个发送波束和接收端设备的一个接收波束。
(11)ZC序列和Gold序列。
Gold序列是基于两个最大长度序列(m序列)通过模2相加而构成的伪随机序列。具备良好的自相关和互相关特性：这意味着序列与其自身延迟版本的相关性接近零，同时不同序列之间的相关性也非常小。这对于码分多址(CDMA)系统特别重要，因为它们允许多个用户共享同一频带而减少干扰。
ZC序列是一种复数序列，以其低的峰值平均功率比(PAPR)和良好的自相关性著称，这使得它们适合于正交频分复用(OFDM)系统。
请参阅图1，为本申请的实施例应用的通信系统1000的架构示意图。如图1所示，该通信系统包括无线接入网(radio access network，RAN)100和核心网200，可选的，通信系统1000还可以包括互联网300。其中，RAN100包括至少一个RAN节点(如图1中的110a和110b，统称为110)，还可以包括至少一个终端(如图1中的120a-120j，统称为120)。RAN100还可以包括其它RAN节点，例如，无线中继设备和/或无线回传设备(图1中未示出)。终端120通过无线的方式与RAN节点110相连，RAN节点110通过无线或有线方式与核心网200连接。核心网200中的核心网设备与RAN100中的RAN节点110可以是独立的不同的物理设备，也可以是集成了核心网设备的逻辑功能与RAN节点的逻辑功能的同一个物理设备。终端和终端之间以及RAN节点和RAN节点之间可以通过有线或无线的方式相互连接。
RAN100可以是第三代合作伙伴计划(3rd generation partnership project，3GPP)中定义的演进的通用陆地无线接入(evolved universal terrestrial radio access，E-UTRA)系统、新无线(new radio，NR)系统以及未来的无线接入系统。RAN100还可以包括上述两种或两种以上不同的无线接入系统。RAN100还可以是开放式RAN(open RAN，O-RAN)。
RAN节点，也称为无线接入网设备、RAN实体或接入节点，用以帮助终端通过无线方式接入到通信系统中。在一种应用场景中，RAN节点可以是基站(base station)、演进型基站(evolved NodeB，eNodeB)、传输接收点(transmission reception point，TRP)、第五代(5th generation，5G)移动通信系统中的下一代基站(next generation NodeB，gNB)、或未来通信系统中的基站。RAN节点可以是宏基站(如图1中的110a)，也可以是微基站或室内站(如图1中的110b)，还可以是中继节点或施主节点。
在另一种应用场景中，可以通过多个RAN节点的协作来帮助终端实现无线接入，不同的RAN节点分别实现基站的部分功能。例如，RAN节点可以是集中式单元(central unit，CU)、分布式单元(distributed unit，DU)或无线单元(radio unit，RU)。这里的CU完成基站的无线资源控制协议和分组数据汇聚层协议(packet data convergence protocol，PDCP)的功能，还可以完成业务数据适配协议(service data adaptation protocol，SDAP)的功能；DU完成基站的无线链路控制层和介质访问控制(medium access control，MAC)层的功能，还可以完成部分物理层或全部物理层的功能，有关上述各个协议层的具体描述，可以参考3GPP的相关技术规范。RU可以用于实现射频信号的收发功能。CU和DU可以是两个独立的RAN节点，也可以是集成在同一个RAN节点中，例如集成在基带单元(baseband unit，BBU)中。RU可以包括在射频设备中，例如包括在射频拉远单元(remote radio unit，RRU)或有源天线单元(active antenna unit，AAU)。CU可以进一步划分为CU-控制面和CU-用户面两种类型的RAN节点。
在不同的系统中，RAN节点可能有不同的名称，例如，在开放式接入网(open RAN，O-RAN或ORAN)系统中，CU也可以称为O-CU(开放式CU)，DU也可以称为O-DU，CU-CP也可以称为O-CU-CP，CU-UP也可以称为O-CU-UP，RU也可以称为O-RU。为描述方便，本申请中以CU，CU-CP，CU-UP、DU和RU为例进行描述。本申请中的CU(或CU-CP、CU-UP)、DU和RU中的任一单元，可以是通过软件模块、硬件模块、或者软件模块与硬件模块结合来实现。
接入网设备和终端设备之间的通信遵循一定的协议层结构。该协议层可以包括控制面协议层和用户面协议层。控制面协议层可以包括以下至少一项：无线资源控制(radio resource control，RRC)层、分组数据汇聚层协议(packet data convergence protocol，PDCP)层、无线链路控制(radio link control，RLC)层、媒体/介质接入控制(media/medium access control，MAC)层、或物理(physical，PHY)层等。用户面协议层可以包括以下至少一项：业务数据适配协议(service data adaptation protocol，SDAP)层、PDCP层、RLC层、MAC层、或物理层等。
对于ORAN系统中的网元及其可实现的协议层功能对应关系，可参照下表1。
表1
为了便于描述，下文中以基站作为RAN节点的一个举例进行描述。
终端是具有无线收发功能的设备，可以向基站发送信号，或接收来自基站的信号。终端也可以称为终端设备、用户设备(user equipment，UE)、移动台、移动终端等。终端可以广泛应用于各种场景，例如，设备到设备(device-to-device，D2D)、车物(vehicle to everything，V2X)通信、机器类通信(machine-type communication，MTC)、物联网(internet of things，IOT)、虚拟现实、增强现实、工业控制、自动驾驶、远程医疗、智能电网、智能家具、智能办公、智能穿戴、智能交通、智慧城市等。终端可以是手机、平板电脑、带无线收发功能的电脑、可穿戴设备、车辆、飞机、轮船、机器人、机械臂、智能家居设备等。本申请的实施例对终端所采用的具体技术和具体设备形态不做限定。
基站和终端可以是固定位置的，也可以是可移动的。基站和终端可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在飞机、气球和人造卫星上。本申请的实施例对基站和终端的应用场景不做限定。
基站和终端的角色可以是相对的，例如，图1中的直升机或无人机120i可以被配置成移动基站，对于那些通过120i接入到无线接入网100的终端120j来说，终端120i是基站；但对于基站110a来说，120i是终端，即110a与120i之间是通过无线空口协议进行通信的。当然，110a与120i之间也可以是通过基站与基站之间的接口协议进行通信的，此时，相对于110a来说，120i也是基站。因此，基站和终端都可以统一称为通信装置，图1中的110a和110b可以称为具有基站功能的通信装置，图1中的120a-120j可以称为具有终端功能的通信装置。
基站和终端之间、基站和基站之间、终端和终端之间可以通过授权频谱进行通信，也可以通过免授权频谱进行通信，也可以同时通过授权频谱和免授权频谱进行通信；可以通过6千兆赫(gigahertz，GHz)以下的频谱进行通信，也可以通过6GHz以上的频谱进行通信，还可以同时使用6GHz以下的频谱和6GHz以上的频谱进行通信。本申请的实施例对无线通信所使用的频谱资源不做限定。
在本申请的实施例中，基站的功能也可以由基站中的模块(如芯片)来执行，也可以由包含有基站功能的控制子系统来执行。这里的包含有基站功能的控制子系统可以是智能电网、工业控制、智能交通、智慧城市等上述应用场景中的控制中心。终端的功能也可以由终端中的模块(如芯片或调制解调器)来执行，也可以由包含有终端功能的装置来执行。
在无线通信系统(例如图1所示通信系统)中，MIMO技术作为无线通信的一项关键技术，可以用来满足高速率的传输需求。以网络设备和终端设备之间的通信过程为例，网络设备通过参考信号进行信道测量以获取信道状态信息(channel state information，CSI)(或称信道信息)，此后，该网络设备可以利用该信道信息计算网络设备到终端设备之间的预编码信息，后续网络设备和终端设备之间可以通过该预编码信息实现MIMO通信。
一种实现示例中，为了给终端设备发送数据，网络设备可以在数字端口上进行预编码,同时选择合适的编码与调制阶数。例如，预编码的作用是使天线(或波束)与信道更匹配，以保证发送数据到达终端侧时信号质量更好、干扰更小，而较好的调制阶数与码率能够保证数据可靠传输条件下最大化信道传输容量。预编码和调制编码方案(modulation coding scheme，MCS)的设置需要根据信道质量和信道响应确定。一种常用的方法是通过网络设备发送下行参考信号，终端设备根据下行参考信号确定信道，然后反馈对应的信道状态信息，包括预编码信息、信道支持的传输流数(即RI)和CQI(用于反馈当前信道质量下终端推荐的MCS)，这一过程叫做信道状态信息反馈(CSI反馈)。另外一种方式通过上行参考信号，测量获取上行信道信息，然后基于信道互易性，进一步获取下行信道信息。下面将通过图2所示实现示例，对下行参考信号的实现过程进行示例性描述。
如图2所示，在下行参考信号的实现过程中，包括如下步骤。
S201、网络设备向终端设备发送配置信息，其中，该配置信息包括信道信息上报(或者测量)配置信息。
具体地，信道信息上报配置信息可以是网络设备通过RRC信令向终端设备发送的，可以包括两部分：资源配置信息和上报配置信息。
其中，资源配置信息是测量资源相关的信息，可以通过三级结构(资源配置(resourceConfig)-资源集(resourceSet)-资源(resource))进行配置。换言之，网络设备可以为终端设备配置一个或多个资源配置，每个资源配置包括一个或多个资源集，每个资源集可以包括一个或多个资源。每个资源配置/资源集/资源中都包括一个自己的索引。可选地，信道信息上报配置信息还可以包括一些其他参数，如资源的周期，资源对应的信号类型等。
此外，上报配置信息是指测量结果上报相关的信息，在协议里通过上报配置(ReportConfig)进行配置。网络设备可以为终端设备配置一个或多个上报配置(ReportConfig)，每个上报配置包括上报指标，上报时间和周期，上报格式等与上报相关的信息。此外，上报配置里还包括资源配置的索引，用于指示上报的结果是通过什么测量配置测得的。
可选地，信道信息上报配置信息包括码本配置信息(CodebookConfig)，用于配置第一类或第二类码本。
S202、网络设备发送下行参考信号。例如，网络设备在资源配置信息所配置的资源上发送下行信号(一般为下行参考信号)，以使得终端设备可以测量下行信号，确定各资源的质量(即资源对应的波束的质量)。
S203、终端设备根据信道信息上报配置信息对下行参考信号进行测量。下行参考信号主要包括同步信号/物理广播信道块(synchronization signal/physical broadcast channel block，SSB或S-SS/PSBCH block)、CSI-RS、跟踪参考信号(tracking reference signal，TRS)等。在PBCH中，可以承载主系统信息块(master information block，MIB)，用于配置小区主要系统信息。
S204、终端设备向网络设备发送信道信息。例如，该信道信息可以包括波束测量报告，报告中包括信道状态信息(channel state information，CSI)。信道状态信息可以包括以下一个或多个：一个或多个资源的索引、CQI、参考信号接收信号质量(reference signal received power，RSRP)、预编码矩阵指示(precoding matrix indicator，PMI)、秩指示(rank indicator，RI)、层指示(layer indicator，LI)、信道状态信息参考信号资源指示(CSI-RS Resource indicator，CRI)字段、同步信号/物理广播信道块资源指示(Synchronization Signal/Physical broadcast channel Block Resource indicator，SSBRI)等。
可选地，对于版本15(Release 15，R15)的码本，每个层PMI矩阵可以等效为：W＝W1W2，W的维度为PCSI-RS×N3，W1的维度为PCSI-RS×2L(或者为宽带预编码矩阵)，W2的维度为2L×N3(或者为各个子带的预编码矩阵)，其中PCSI-RS为CSI-RS端口数量，N3为PMI反馈的子带数量(或者PMI数量)。
可选地，PMI矩阵可以等效表示为：W的维度为PCSI-RS×N3，W1的维度为PCSI-RS×2L(或者为宽带预编码矩阵)，的维度为2L×N3(对应为Release 15的W2，即为各个子带的预编码矩阵)。的维度为2L×M(或者为压缩后矩阵)，的维度为M×N3(是维度为N3×N3的逆离散傅里叶变换(inverse discrete fourier transformation，IDFT)矩阵中的M行，即维度为N3×N3的DFT矩阵Wf中的M列的共轭)，其中PCSI-RS为CSI-RS端口数量，为IDFT基向量选择数量，N3为PMI反馈的子带数量(或者PMI数量)。最终反馈时，仅需要反馈W1相关的端口或者DFT码本信息、相关的IDFT基底选择信息、中的非零元。更多细节可以参考38.214，不作赘述。
可选地，信道状态信息可以承载在上行控制信息(uplink control information，UCI)中，通过物理上行控制信道(Physical Uplink Control Channel，PUCCH)或物理上行共享信道中(Physical Uplink Shared Channel，PUSCH)传输。
此外，网络设备在步骤S204中获得信道信息后，可以确定调度信息，包括以下一种或者多种：MCS、RB资源分配、发送波束、接收波束，提高波束匹配信道的程度，从而有利于提升通信速率和效率。
作为一种示例，图2所示的下行参考信号可以为CSI-RS。其中，通过时间、频率上的正交资源可以区分不同端口，下面将通过图3进行介绍。
如图3所示，32个资源对应32个端口，其中水平方向对应时域(图中以14个OFDM符号为例)，垂直方向对应频域(图中以12个子载波为例)。不同填充图案的资源一共有八组，每组包含4个RE，分别对应4个端口。具体如下：
第一组资源：符号5和符号6、子载波0和子载波1对应的4个RE。
第二组资源：符号5和符号6、子载波2和子载波3对应的4个RE。
第三组资源：符号5和符号6、子载波4和子载波5对应的4个RE。
第四组资源：符号5和符号6、子载波6和子载波7对应的4个RE。
第五组资源：符号9和符号10、子载波0和子载波1对应的4个RE。
第六组资源：符号9和符号10、子载波2和子载波3对应的4个RE。
第七组资源：符号9和符号10、子载波4和子载波5对应的4个RE。
第八组资源：符号9和符号10、子载波6和子载波7对应的4个RE。
在每一组资源对应的四个端口之间，通过时域、频域二维的码分(例如正交掩码(orthogonal cover code，OCC)。CSI-RS资源时间上的起始位置、频域上的密度(即一个资源块(resource block，RB)多少个资源元素RE，或者隔多少个资源有)、时域OCC、频域OCC，可以由网络设备发送的配置信息指定的(如前文步骤S201的实现过程)。
在符号l、资源k上承载的端口为p的CSI-RS信号满足：
其中，βCSIRS为功率调整系数，wf(k′)为频域OCC系数，wt(l′)为时域OCC系数，l为OFDM符号索引，ns,f为时隙号，μ为子载波间隔索引，k′和l′分别为频域和时域的OCC索引，m′为导频符号索引，满足：
或者
n为资源块索引，ρ为频域密度(一般为1/3、1/4、1/6、1/8、0.5或1，表示2个资源块中有一个资源，或者1个资源块中有一个资源)，为资源块内OCC组的频域起始资源(子载波)索引，为一个资源块上的资源数。对于典型的频域密度，同一个OFDM符号以及不同OCC组(例如码分复用(code division multiplxing，CDM)组)内的符号相同(例如，同一个符号上，不同CDM组对应的m′相同)。其中，满足：
其中j为虚数单位，c(n)为Gold序列：
c(n)＝(x1(n+NC)+x2(n+NC))mod2
x1(n+31)＝(x1(n+3)+x1(n))mod2
x2(n+31)＝(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod2
其中，NC＝1600第一个m-sequence序列x1(n)初始值x1(0)＝1,x1(n)＝0,n＝1,2,...,30.第二个m-sequence序列x2(n)的初始值表示为满足：
nID为基站配置的扰码。
可选的，网络设备可以通过多波束测量实现图2所示流程。
例如，网络设备在通过多个波束(模拟波束)，分别服务不同终端设备。终端设备通过CSI-RS对多个波束的信道进行测量，然后上报信道信息(如步骤S204)。其中，终端设备可以测量和/或上报其中部分波束的信道信息(尤其是PMI)，且每个资源单独计算CSI(不会在资源之间重新组合端口测量CSI)。
又如，网络设备在通过多个CSI-RS资源，每个CSI-RS资源由若干个天线端口。通过对多个CSI-RS资源进行联合测量，获取更大数量天线端口对应的信道，然后上报信道信息(CSI)。例如，通过4个CSI-RS资源，每个资源32个天线端口，联合测量得到128端口的信道。
由上述过程可知，在MIMO系统的通信过程中，信号发送方可以发送参考信号，相应的，信号接收方可以接收该参考信号，并基于该参考信号进行测量得到信道信息，后续可以基于该信道信息实现高速率的数据传输。然而，在上述实现过程中，如何提升参考信号的传输性能，是一个亟待解决的技术问题。
为了解决上述问题，本申请提供了一种参考信号的传输方法及相关装置。下面将结合附图进行详细介绍。
请参阅图4，为本申请提供的参考信号的传输方法的一个实现示意图，该方法包括如下步骤。
需要说明的是，在下文中，图4和后文图7/图8/图9中以第一通信装置和其它通信装置(例如第二通信装置)作为该交互示意的执行主体为例来示意该方法，但本申请并不限制该交互示意的执行主体。例如，通信装置可以为通信设备，或者，通信设备中的芯片、基带(baseband)芯片、调制解调(modem)芯片、包含modem核的片上系统(system on chip,SoC)芯片、系统级封装(systemin package，SIP)芯片、通信模组、芯片系统、处理器、逻辑模块或软件等。可选的，该通信设备可以为终端设备或网络设备(例如接入网设备、接入网网元、核心网网元、或核心网设备等)。
可选地，执行图4/图7/图8/图9所示方法的网络设备可以是ORAN网元，包括但不限于O-CU-CP、O-CU-UP、O-DU、O-RU中的一项或多项。以图4为例，第二通信装置可以为网络设备，该网络设备为ORAN网元的情况下，该第二通信装置可以通过O-CU-CP、O-CU-UP和O-DU中的至少一项确定第一信息，并通过O-RU发送该第一信息。
S401.第二通信装置发送第一信息。相应的，第一通信装置接收第一信息。其中，该第一信息用于配置第一资源，该第一资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数。
S402.第二通信装置发送参考信号。相应的，第一通信装置接收参考信号。其中，该参考信号承载于第一资源。
本申请中，在K个时间单元中，每个时间单元可以为一个或多个正交频分复用(orthogonal frequency division multiplexing，OFDM)符号，一个或多个时隙、一个或多个子帧、或，一个或多个帧等。
应理解，在K个时间单元中，不同的时间单元对应的时间长度(或，不同的时间单元占用的时域资源大小)可以是相同的，也可以是不同的，此处不做限定。例如，在K个时间单元中，每个时间单元包括时域上连续的一个或多个OFDM符号，或者，不同的时间单元之间间隔一个或多个OFDM符号。又如，在K个时间单元中，不同的时间单元包含的OFDM符号数可以相同，也可以部分相同且部分不同，也可以完全不同。
作为一种示例，该K个时间单元中的每个时间单元(或任一个时间单元、或其中一个时间单元、或至少一个时间单元)为1个OFDM符号、2个OFDM符号、3个OFDM符号或4个OFDM符号。
可选的，在K个时间单元中，任意两个时间单元的复用端口数量是不同的。通过这种方式，能够在第一资源包含的K个时间单元中，尽可能地实现更多的复用端口数量的参考信号的传输，并进一步提升参考信号的传输资源的复用效率。
例如，K个时间单元中的每个时间单元(或任一个时间单元、或其中一个时间单元、或至少一个时间单元)的复用端口数量为8、12、16、24、32、48、64、96、128、192、256或512。
又如，K个时间单元的复用端口总数为16、32、48、64、96、128、192、或256。
又如，K个时间单元的复用端口总数为128、192、256、384、512、768、或1024。
可选的，在K个时间单元中，任一个(或至少一个)时间单元内的一个或多个OFDM符号，在时域上可以是连续的，也可以是不连续的，此处不做限定。此外，在K个时间单元中，不同的时间单元在时域上可以间隔一个或多个OFDM符号，也可以时域上相邻(即该不同的时间单元在时域上不间隔其它的OFDM符号，或者，该不同的时间单元在时域上间隔的OFDM符号数量为0)。
可选的，在K个时间单元中，任一个(或至少一个)时间单元内上的一个或多个频域单元(或可用频域单元)，在频域上可以是连续的，也可以是不连续的，此处不做限定。此外，在K个时间单元中，不同的时间单元上的频域单元(或可用频域单元)的间隔(或在K个时间单元中，不同的时间单元上的频域密度)可以是相同的，也可以是不同的，此处不做限定。
在一种可能的实现方式中，在第一资源包含的K个时间单元中，至少两个时间单元的复用端口数量是不同的。通过这种方式，第一资源能够用于传输至少两种复用端口数量的参考信号，能够提升参考信号的传输资源的复用效率，以提升参考信号的传输性能。
此外，第一通信装置的数量可以为一个或多个，其中，一个或多个第一通信装置均能够通过第一资源接收参考信号。在图4所示方案中，由于在第一资源包含的K个时间单元中的至少两个时间单元的复用端口数量是不同的，为此，在该第一资源上，不同的第一通信装置均能够接收各自配置的(或期望的)复用端口数量的参考信号，能够匹配不同端口数量的信道，提升参考信号的传输资源的复用效率，以提升参考信号的传输性能。
需要说明的是，K个时间单元可以通过多种方式实现，下面将结合一些示例进行说明。
示例A、对于时域资源，满足以下一项或多项：
至少两个时间单元的时间长度不同；
至少一个时间单元为1个正交频分复用OFDM符号、2个OFDM符号、3个OFDM符号或4个OFDM符号。
示例B、对于频域资源，满足以下一项或多项：
至少两个时间单元上的频域单元数量不同；
至少两个时间单元占用的频域宽度不同。
示例C、对于复用端口数量，满足以下一项或多项：
每个时间单元的复用端口数量为8、12、16、24、32、48、64、96、128、192、256或512；
至少一个时间单元的复用端口数量为8、12、16、24、32、48、64、96、128、192、256或512；
该K个时间单元的复用端口总数为16、32、48、64、96、128、192、256、384、512、768、或1024。
示例D、对于资源的其它实现，满足以下一项或多项：
在该K个时间单元上，至少两个时间单元对应的码分复用CDM组不同；
在该K个时间单元上，至少两个时间单元承载的参考信号序列对应的循环移位CS不同；
在该K个时间单元上，至少两个时间单元上的资源或序列映射的频域间隔不同。
以前文图3所示场景为例，按照传统的参考信号的传输方式，在同一资源的不同时间单元上传输的参考信号复用的端口数量都是相同的。例如，图3中的符号5和符号6视为一个时间单元，且符号9和符号10视为另一个时间单元的情况下，这两个时间单元的复用端口数量均为16。而在图4所示方案中，在第一资源包含的K个时间单元中的至少两个时间单元的复用端口数量是不同的。
如图5a所示示例，K个时间单元可以包括两个时间单元，第一个时间单元包括符号5和符号6，第二个时间单元包括符号9和符号10。这两个时间单元复用的端口数量可以是不同的。不同填充图案的资源一共有6组，每组包含4个RE，分别对应4个端口。具体如下：
第一组资源：符号5和符号6、子载波0和子载波1对应的4个RE。
第二组资源：符号5和符号6、子载波2和子载波3对应的4个RE。
第三组资源：符号9和符号10、子载波0和子载波1对应的4个RE。
第四组资源：符号9和符号10、子载波2和子载波3对应的4个RE。
第五组资源：符号9和符号10、子载波4和子载波5对应的4个RE。
第六组资源：符号9和符号10、子载波6和子载波7对应的4个RE。
由图5a所示示例可以看出，第一个时间单元复用的端口数为8，第二个时间单元复用的端口数为16，使得第一资源能够用于传输至少两种复用端口数量的参考信号，能够提升参考信号的传输资源的复用效率，以提升参考信号的传输性能。并且，在第一通信装置的数量为多个的情况下，一部分第一通信装置可以基于端口复用数量为8的端口在图5a所示的第一个时间单元(即符号5和符号6)上接收参考信号，另一个部分第一通信装置可以基于端口复用数量为16的端口在图5a所示的第二个时间单元(即符号9和符号10)上接收参考信号，能够匹配不同端口数量的信道，提升参考信号的传输资源的复用效率，以提升参考信号的传输性能。
如图5b所示示例，K个时间单元可以包括两个时间单元，第一个时间单元包括符号3至符号6，第二个时间单元包括符号9至符号12(即每个时间单元包含的符号数均为4)。这两个时间单元复用的端口数量可以是不同的。不同填充图案的资源一共有2组，第一组包含16个RE且对应16个端口，第二组包含32个RE且对应32个端口。具体如下：
第一组资源：符号3、符号4、符号5和符号6，以及，子载波0、子载波1、子载波2和子载波3对应的16个RE。
第二组资源：符号9、符号10、符号11和符号12，以及，子载波0、子载波1、子载波2、子载波3、子载波4、子载波5、子载波和子载波7对应的32个RE。
由图5b所示示例可以看出，第一个时间单元复用的端口数为16，第二个时间单元复用的端口数为32，使得第一资源能够用于传输至少两种复用端口数量的参考信号，能够提升参考信号的传输资源的复用效率，以提升参考信号的传输性能。并且，在第一通信装置的数量为多个的情况下，一部分第一通信装置可以基于端口复用数量为16的端口在图5b所示的第一个时间单元(即符号3至符号6)上接收参考信号，另一个部分第一通信装置可以基于端口复用数量为32的端口在图5b所示的第二个时间单元(即符号9至符号12)上接收参考信号，能够匹配不同端口数量的信道，提升参考信号的传输资源的复用效率，以提升参考信号的传输性能。
在一种可能的实现方式中，在K个时间单元中，至少两个时间单元的复用端口数量是相同的，或者任意两个时间单元的复用端口数量是相同的。进一步地，至少两个时间单元上端口复用的方式不同。具体该K个时间单元可以参考下述实施例(例如后文描述的第一条件，第二条件，第三条件，图6a至图6d及相关实现方式等)。
作为一种示例，第一通信装置可以为终端设备且第二通信装置可以为网络设备(例如接入网设备)。例如，即图4和后文图7/图8/图9所示方案可以应用于下行参考信号传输的通信场景，在这种情况下，第一通信装置以在下述步骤S402(或步骤S702、步骤S802、步骤S901等)接收的参考信号可以为下行参考信号。可选的，步骤S401和步骤S402的实现过程可以参考前文步骤S201和步骤S202的实现过程。
此外，图4和后文图7/图8/图9所示方案还可以应用于上行参考信号传输的通信场景，在这种情况下，第一通信装置可以在下述步骤S402(或步骤S702、步骤S802、步骤S901等)不执行发送参考信号的过程，而是执行发送参考信号的过程，并且，该第一通信装置发送的参考信号可以为上行参考信号。
可选的，上述涉及的下行参考信号可以包括SSB、CSI-RS、PTRS、DMRS、或TRS等。
可选的，上述涉及的上行参考信号可以包括SRS、PTRS、DMRS、或上行定位信号等。
作为另一种示例，第一通信装置和第二通信装置均为终端设备，即图4和后文图7/图8/图9所示方案可以应用于侧行链路通信场景，即上述参考信号可以为侧行参考信号。
可选的，上述涉及的侧行参考信号可以包括侧行链路-同步信号块(sidelink synchronization signal block，S-SSB或SL-SSB)、或侧行链路-信道状态信息参考信号(sidelink channel state information reference signal，SL-CSI-RS)等。
在一种可能的实现方式中，在步骤S402之后，该方法还包括：第一通信装置发送第二信息，相应的，第二通信装置接收该第二信息(该实现过程可以参考前文步骤S203和步骤S204的实现过程)。其中，该第二信息用于指示该参考信号的测量结果。具体地，第一通信装置在第一资源上接收参考信号之后，该第一通信装置可以对该参考信号进行测量得到测量结果，并通过发送的第二信息指示该测量结果，使得该第二信息的接收方能够基于该测量结果与进行通信，以提升通信质量。
在一种可能的实现方式中，第一通信装置在步骤S401中接收的第一信息包括以下至少一项：
第一指示信息，指示该K个时间单元中的每个时间单元的复用端口信息；其中，该复用端口信息用于指示时域码分组、频域码分组、频域间隔、频域起始位置、复用端口数量中的至少一项；
第二指示信息，指示该K个时间单元的每个时间单元包含的符号数量；
第三指示信息，指示该K个时间单元的复用端口总数。
从而，用于配置第一资源的第一信息可以通过上述多种方式实现，以提升方案实现的灵活性。并且，第一通信装置也能够通过上述多种方式获知K个时间单元上的复用端口信息、时间单元的相关信息，使得第一通信装置能够基于这些指定的信息在步骤S402中接收参考信号，可以避免参考信号接收失败。
可选的，在第一信息指示的第一资源用于承载下行参考信号的情况下，该第一信息可以为以下一种或多种的组合：RRC、DCI、或MAC CE。
在一种可能的实现方式中，第一通信装置可以基于步骤S401中接收的第一信息确定第一资源，该第一资源包含的K个时间单元，可以通过下述方式一至方式四中的一种或多种方式(其中，该一种或多种方式可以记为第一条件)实现，下面将详细介绍。
方式一、K个时间单元的复用端口总数为PRS，PRS个端口包括第1个时间单元复用的P0个端口...第K个时间单元复用的PK-1个端口，P0...PK-1均大于1；其中，PRS个端口与该K个时间单元的映射顺序为：
第1个时间单元复用的P0个端口中的前个端口...第K个时间单元复用的PK-1个端口中的前个端口、第1个时间单元复用的P0个端口中的后个端口...第K个时间单元复用的PK-1个端口中的后个端口。
在方式一中，K个时间单元的复用端口总数为PRS，并且，该PRS个端口与K个时间单元的映射顺序满足上述过程，使得K个时间单元中的任一时间单元的前一半端口和后一半端口的映射顺序错开(例如K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向)，以兼容不同通信能力(例如通信端口数量不同)的通信装置。
方式二、K个时间单元满足以下至少一项：
该K个时间单元中的第i时间单元复用的Pi个端口中的后个端口的映射顺序，位于该K个时间单元中的第j时间单元复用的Pj个端口中的前个端口的映射顺序之后，i和j均为1至K中的任一个，Pi和Pj均大于1(或，在K个时间单元中，任一时间单元的复用端口的后一半端口的映射顺序，位于任一时间单元的复用端口的前一半端口的映射顺序之后)；
该K个时间单元中的第i+1时间单元复用的Pi+1个端口中的前个端口的映射顺序，位于该K个时间单元中的第i时间单元复用的Pi个端口中的前个端口的映射顺序之后(或，在K个时间单元中，任一时间单元的复用端口的前一半端口的映射顺序，位于该任一时间单元相邻的下一个时间单元的复用端口的前一半端口的映射顺序之后)；
该K个时间单元中的第i+1时间单元复用的Pi+1个端口中的后个端口的映射顺序，位于该K个时间单元中的第i时间单元复用的Pi个端口中的后个端口的映射顺序之后(或，在K个时间单元中，任一时间单元的复用端口的后一半端口的映射顺序，位于该任一时间单元相邻的下一个时间单元的复用端口的后一半端口的映射顺序之后)。
在方式二中，K个时间单元中的第i个时间单元复用的端口的映射顺序满足上述至少一项，使得K个时间单元中的同一时间单元的前一半端口和后一半端口的映射顺序错开(例如K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向)，以兼容不同通信能力(例如通信端口数量不同)的通信装置。
方式三、第一资源包含的K个时间单元中的第k个时间单元的复用端口数量为Pk，k取值为0至K-1，Pk大于1；其中，在Pk个端口中，至少两个端口的极化方向是不同的。
方式四、在该Pk个端口中，端口0至端口的极化方向为第一极化方向，端口至端口的极化方向为第二极化方向。
在方式三和方式四中，K个时间单元中的第k个时间单元复用的Pk个端口中，至少两个端口的极化方向是不同的，使得K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向，以兼容不同通信能力(例如通信端口数量不同)的通信装置。
在方式一至方式四的任一方式中，在K个时间单元的第k个时间单元复用的Pk个端口，前面一半(即)对应第一个极化方向，后面一半对应第二个极化。例如，按时间上的增序，依次将各个组中第一个极化方向的多个端口组合，然后类似地将各个组中的第二个极化方向的多个端口组合。可以参考下表2。
表2
应该理解，第k时间单元复用端口数量Pk为8、12、16、24、32、48、64、96、128、192、256或512。
又如，存在i不等于j，使得Pi和Pj不相等。
又如，K个时间单元的复用端口总数PRS为16、32、48、64、96、128、192、256、384、512、768、或1024。
以前文图3所示场景为例，按照传统的参考信号的传输方式，在一个资源包含的多个时间单元上，该资源所复用的多个端口的映射顺序为在时域资源索引较低的位置，从频域资源索引从小往大进行映射之后，再在时域资源索引较低的位置，从频域资源索引从小往大进行映射。即传统的映射方式是先对一个时域资源索引对应的多个频域资源位置进行映射完之后，再对下一个时域资源索引对应的多个频域资源位置进行映射。
如图6a所示示例，为图3所示场景对应的传统的映射方式的一种实现示例。在图6a中，32个端口映射至图6a中的32个资源的情况下，32个端口的映射顺序为：
在第一个符号上映射8个端口(即在符号5上映射端口0-7)；
在第二个符号上映射8个端口(即在符号6上映射端口8-15)；
在第三个符号上映射8个端口(即在符号9上映射端口16-23)；
在第四个符号上映射8个端口(即端口24-31)。
而在方式一至方式四的任一方式中，K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向，下面将结合图6b和图6c所示示例进行描述。
如图6b所示示例，为图5a所示场景对应的映射方式的一种实现示例。在图6b中，K个时间单元可以包括两个时间单元，第一个时间单元包括符号5和符号6，第二个时间单元包括符号9和符号10。24个端口映射至图6b中的两个时间单元对应的24个RE的情况下，24个端口的映射顺序为：
在第一个时间单元映射前4个端口(即在符号5和符号6上映射端口0-3)，该端口数量为第一时间单元映射的端口总数(8个)的一半；
在第二个时间单元映射前8个端口(即在符号9和符号10上映射端口4-11)，该端口数量为第二时间单元映射的端口总数(16个)的一半；
在第一个时间单元映射后4个端口(即在符号5和符号6上映射端口12-15)，该端口数量为第一时间单元映射的端口总数(8个)的一半；
在第二个时间单元映射后8个端口(即在符号9和符号10上映射端口16-23)，该端口数量为第二时间单元映射的端口总数(16个)的一半。
由图6b所示示例可以看出，K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向，可以兼容不同通信能力(例如通信端口数量不同)的通信装置。例如，在第一通信装置的数量为多个的情况下，一部分第一通信装置可以基于端口复用数量为8的端口在图6b所示的第一个时间单元上接收参考信号，另一个部分第一通信装置可以基于端口复用数量为16的端口在图6b所示的第二个时间单元上接收参考信号，能够匹配不同端口数量的信道。
如图6c所示示例，为图5b所示场景对应的映射方式的一种实现示例。在图6b中，K个时间单元可以包括两个时间单元，第一个时间单元包括符号3至符号6，第二个时间单元包括符号9至符号12。48个端口映射至图6c中的两个时间单元对应的48个RE的情况下，48个端口的映射顺序为：
在第一个时间单元映射前8个端口(即在符号3至符号6上映射端口0-7)，该端口数量为第一时间单元映射的端口总数(16个)的一半；
在第二个时间单元映射前16个端口(即在符号9至符号12上映射端口8-23)，该端口数量为第二时间单元映射的端口总数(32个)的一半；
在第一个时间单元映射后8个端口(即在符号3至符号6上映射端口24-31)，该端口数量为第一时间单元映射的端口总数(16个)的一半；
在第二个时间单元映射后16个端口(即在符号9至符号12上映射端口32-47)，该端口数量为第二时间单元映射的端口总数(32个)的一半。
由图6c所示示例可以看出，K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向，可以兼容不同通信能力(例如通信端口数量不同)的通信装置。例如，在第一通信装置的数量为多个的情况下，一部分第一通信装置可以基于端口复用数量为16的端口在图6c所示的第一个时间单元上接收参考信号，另一个部分第一通信装置可以基于端口复用数量为32的端口在图6c所示的第二个时间单元上接收参考信号，能够匹配不同端口数量的信道。
由上述图5a、图5b、图6a、图6b、图6c所示实现过程可知，在K个时间单元，满足以下一项或多项(其中，该一项或多项可以记为第二条件)：
至少两个时间单元的时间长度可以是相同的(例如图6c中两个时间单元均包括4个符号)，通过这种方式，可以降低配置的复杂度。
至少两个时间单元上的频域单元数量不同(例如图6c中第一个时间单元上的频域单元数量为4，而第二个时间单元上的频域单元数量为8)，和/或，至少两个时间单元占用的频域宽度不同(例如图6c中第一个时间单元占用的频域宽度为4个RB，而第二个时间单元占用的频域宽度为8个RB)。通过这种方式，可以在较多的频域单元数量上传输较多端口数对应的参考信号，也可以在较少的频域单元数量上传输较少端口数对应的参考信号，以提升资源利用率。
而在实际应用中，K个时间单元可以通过更加灵活的方式实现，下面将结合更多的示例进行说明。
如图6d所示示例，K个时间单元可以包括三个时间单元，第一个时间单元包括符号1，第二个时间单元包括符号4至符号5，第三个时间单元包括符号9至符号12。52个端口映射至图6d中的三个时间单元对应的52个RE的情况下，52个端口的映射顺序为：
在第一个时间单元映射前2个端口(即在符号1上映射端口0-1)，该端口数量为第一时间单元映射的端口总数(4个)的一半；
在第二个时间单元映射前8个端口(即在符号4至符号5上映射端口2-9)，该端口数量为第二时间单元映射的端口总数(16个)的一半；
在第三个时间单元映射前16个端口(即在符号9至符号12上映射端口10-25)，该端口数量为第二时间单元映射的端口总数(32个)的一半；
在第一个时间单元映射后2个端口(即在符号1上映射端口26-27)，该端口数量为第一时间单元映射的端口总数(4个)的一半；
在第二个时间单元映射后8个端口(即在符号4至符号5上映射端口28-35)，该端口数量为第二时间单元映射的端口总数(16个)的一半；
在第三个时间单元映射后16个端口(即在符号9至符号12上映射端口36-51)，该端口数量为第二时间单元映射的端口总数(32个)的一半。
由图6d所示示例可以看出，K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向，可以兼容不同通信能力(例如通信端口数量不同)的通信装置。例如，在第一通信装置的数量为多个的情况下，一部分第一通信装置可以基于端口复用数量为4的端口在图6d所示的第一个时间单元上接收参考信号，另一个部分第一通信装置可以基于端口复用数量为16的端口在图6d所示的第二个时间单元上接收参考信号，另一个部分第一通信装置可以基于端口复用数量为32的端口在图6d所示的第三个时间单元上接收参考信号，能够匹配不同端口数量的信道。
由图6d所示示例可以看出，在K个时间单元，满足以下一项或多项(其中，该一项或多项可以记为第三条件)：
至少两个时间单元的时间长度可以是不同的(例如图6d中三个时间单元占用的符号数量分别为1、2、4)，通过这种方式，可以在较多的时间单元数量上传输较多端口数对应的参考信号，也可以在较少的时间单元数量上传输较少端口数对应的参考信号，以提升资源利用率。
至少两个时间单元的时间间隔可以是不同的(例如图6d中第一个时间单元和第二个时间单元的时间间隔为2个符号，图6d中第二个时间单元和第三个时间单元的时间间隔为3个符号)，通过这种方式，可以为时间长度较多的时间单元数量配置较长的时间间隔，以提升抗干扰能力。也可以为时间长度较段的时间单元数量配置较短的时间间隔，以提升资源利用率。
至少两个时间单元占用的频域宽度不同，或，至少两个时间单元上的频域单元数量不同(例如图6d中第一个时间单元占用的频域单元数量为4，图6d中第二个时间单元占用的频域单元数量为8)，能够使得承载参考信号的频域单元数量与所在时间单元上的复用端口数相匹配。
至少两个时间单元对应的CDM组大小不同(例如图6d中第一个时间单元对应的CDM组包含指示2个端口在相同的时频域资源上进行码分，图6d中第二个时间单元对应的CDM组包含指示8个端口在相同的时频域资源上进行码分)，能够使得承载参考信号的资源码分方式与所在时间单元上的复用端口数相匹配。
至少两个时间单元上的资源或序列映射的频域间隔不同，即频域粒度不同(例如图6d中第一个时间单元对应的不同RE之间间隔为2个RE，图6d中第而个时间单元对应的不同RE之间间隔为0个RE)，通过这种方式，能够为不同复用端口数对应的时间单元配置相应的频域粒度，在频域粒度较密集时能够提升资源利用率，在频域粒度较稀疏时能够提升信号传输的抗干扰能力。
至少两个时间单元承载的参考信号序列对应的循环移位(cyclic shift，CS)不同，能够提升资源利用率。
在一种可能的实现方式中，在第一资源上传输的参考信号是基于ZC(Zadoff-Chu)序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。相比于仅通过Gold序列生成的参考信号的情况下，参考信号的接收端的检测复杂度较高的实现方式；在上述过程中，第一资源上传输的参考信号至少是基于ZC序列生成的，能够利用ZC序列具有包络恒定的特点以及循环移位的特点，可以在一次接收检测内识别多个端口，从而降低参考信号的接收端的检测复杂度。
可选的，该参考信号(或该参考信号的序列)满足：
或，
或，
或，
或，
xu[m]＝exp(-j2πm×CS)；或，
xu[m]＝exp(-j2πm×CS)×r(m)；
其中，xu[m]表示该参考信号(或该参考信号的序列)，N为映射的频域数量，NZC为序列长度，j为虚数单位，u为根序列索引，CS为循环移位值，r(m)表示Gold序列。
应理解，在参考信号满足前两项(即 或，)的情况下，该参考信号或该参考信号的序列可以为ZC序列。在参考信号满足后两项(即 或，)的情况下，该参考信号或该参考信号的序列可以为ZC序列和Gold序列联合得到的。
可选的，上述根序列索引、循环移位值、单个根序列的循环移位数量或(分别为向下取整和向上取整)中的一项或多项可以是网络设备配置的，也可以是预配置的。
可选的，r(m)的实现可以参考前文描述，例如，r(m)可以为前文描述的
请参阅图7，为本申请提供的参考信号的传输方法的另一个实现示意图，该方法包括如下步骤。
S701.第二通信装置发送第三信息。相应的，第一通信装置接收第三信息。其中，该第三信息用于配置第二资源，该第二资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数。
S702.第二通信装置发送参考信号。相应的，第一通信装置接收参考信号。其中，该参考信号承载于第二资源。
此外，图7所示过程中，满足以下方式一至方式四中的任一方式：
方式一、K个时间单元的复用端口总数为PRS，PRS个端口包括第1个时间单元复用的P0个端口...第K个时间单元复用的PK-1个端口，P0...PK-1均大于1；其中，PRS个端口与该K个时间单元的映射顺序为：第1个时间单元复用的P0个端口中的前个端口...第K个时间单元复用的PK-1个端口中的前个端口、第1个时间单元复用的P0个端口中的后个端口...第K个时间单元复用的PK-1个端口中的后个端口。
方式二、K个时间单元满足以下至少一项：
该K个时间单元中的第i时间单元复用的Pi个端口中的后个端口的映射顺序，位于该K个时间单元中的第j时间单元复用的Pj个端口中的前个端口的映射顺序之后，i和j均为1至K中的任一个，Pi和Pj均大于1；
该K个时间单元中的第i+1时间单元复用的Pi+1个端口中的前个端口的映射顺序，位于该K个时间单元中的第i时间单元复用的Pi个端口中的前个端口的映射顺序之后；
该K个时间单元中的第i+1时间单元复用的Pi+1个端口中的后个端口的映射顺序，位于该K个时间单元中的第i时间单元复用的Pi个端口中的后个端口的映射顺序之后。
方式三、该K个时间单元中的第k个时间单元的复用端口数量为Pk，k取值为0至K-1，Pk大于1；
其中，在Pk个端口中，至少两个端口的极化方向是不同的。
方式四、在该Pk个端口中，端口0至端口的极化方向为第一极化方向，端口至端口的极化方向为第二极化方向。
基于上述方式一，第二资源包含的K个时间单元的复用端口总数为PRS，并且，该PRS个端口与K个时间单元的映射顺序满足上述过程，使得K个时间单元中的任一时间单元的前一半端口和后一半端口的映射顺序错开(例如K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向)，以兼容不同通信能力(例如通信端口数量不同)的通信装置。
基于上述方式二，K个时间单元中的第i个时间单元复用的端口的映射顺序满足上述至少一项，使得K个时间单元中的同一时间单元的前一半端口和后一半端口的映射顺序错开(例如K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向)，以兼容不同通信能力(例如通信端口数量不同)的通信装置。
基于上述方式三或方式四，K个时间单元中的第k个时间单元复用的Pk个端口中，至少两个端口的极化方向是不同的，使得K个时间单元中的任一时间单元的前一半端口对应的极化方向不同于后一半端口对应的极化方向，以兼容不同通信能力(例如通信端口数量不同)的通信装置。
在一种可能的实现方式中，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。具体地，第一资源上传输的参考信号可以是基于ZC序列生成的，或，基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。相比于仅通过Gold序列生成的参考信号的情况下，参考信号的接收端的检测复杂度较高的实现方式；在上述过程中，第一资源上传输的参考信号至少是基于ZC序列生成的，能够利用ZC序列具有包络恒定的特点以及循环移位的特点，可以在一次接收检测内识别多个端口，从而降低参考信号的接收端的检测复杂度。
可选的，该参考信号(或该参考信号的序列)满足：
或，
或，
或，
或，
xu[m]＝exp(-j2πm×CS)；或，
xu[m]＝exp(-j2πm×CS)×r(m)；
其中，xu[m]表示该参考信号(或该参考信号的序列)，N为映射的频域数量，NZC为序列长度，j为虚数单位，u为根序列索引，CS为循环移位值，r(m)表示Gold序列。
应理解，在参考信号满足前两项(即 或，)的情况下，该参考信号或该参考信号的序列可以为ZC序列。在参考信号满足后两项(即 或，)的情况下，该参考信号或该参考信号的序列可以为ZC序列和Gold序列联合得到的。
请参阅图8，为本申请提供的参考信号的传输方法的另一个实现示意图，该方法包括如下步骤。
S801.第二通信装置发送第四信息。相应的，第一通信装置接收第四信息。其中，该第四信息用于配置第三资源，该第三资源用于承载参考信号；其中，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。
S802.第二通信装置发送参考信号。相应的，第一通信装置接收参考信号。其中，该参考信号承载于第三资源。
基于图8所示方案，第三资源上传输的参考信号可以是基于ZC序列生成的，或，基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。相比于仅通过Gold序列生成的参考信号的情况下，参考信号的接收端的检测复杂度较高的实现方式；在上述过程中，第三资源上传输的参考信号至少是基于ZC序列生成的，能够利用ZC序列具有包络恒定的特点以及循环移位的特点，可以在一次接收检测内识别多个端口，从而降低参考信号的接收端的检测复杂度。
请参阅图9，为本申请提供的参考信号的传输方法的另一个实现示意图，该方法包括如下步骤。
S901.第二通信装置生成参考信号。其中，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。
S902.第二通信装置发送参考信号。相应的，第一通信装置接收参考信号。
基于图9所示方案，参考信号可以是基于ZC序列生成的，或，基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。相比于仅通过Gold序列生成的参考信号的情况下，参考信号的接收端的检测复杂度较高的实现方式；在上述过程中，第三资源上传输的参考信号至少是基于ZC序列生成的，能够利用ZC序列具有包络恒定的特点以及循环移位的特点，可以在一次接收检测内识别多个端口，从而降低参考信号的接收端的检测复杂度。
需要说明的是，图7至图9中的任一实现方式，可以参考前文图4及相关实现示例(例如图5a、图6a和图6b和图6c等)的实现过程。
请参阅图10，本申请实施例提供了一种通信装置10，该通信装置10可以实现上述方法实施例中第一通信装置(或第二通信装置)的功能，因此也能实现上述方法实施例所具备的有益效果。在本申请实施例中，该通信装置10可以是第一通信装置(或第二通信装置)，也可以是第一通信装置(或第二通信装置)内部的集成电路或者元件等，例如芯片。
一种可能的实现方式中，当该装置10为用于执行前述实施例中第一通信装置所执行的方法时，该装置10包括处理单元1001和收发单元1002；该收发单元1002用于接收第一信息，该第一信息用于配置第一资源，该第一资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该处理单元1001用于控制该收发单元1002在该第一资源上接收该参考信号。
一种可能的实现方式中，当该装置10为用于执行前述实施例中第二通信装置所执行的方法时，该装置10包括处理单元1001和收发单元1002；该处理单元1001用于确定第一信息；该收发单元1002用于发送第一信息，该第一信息用于配置第一资源，该第一资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该收发单元1002还用于在该第一资源上发送该参考信号。
一种可能的实现方式中，当该装置10为用于执行前述实施例中第一通信装置所执行的方法时，该装置10包括处理单元1001和收发单元1002；该收发单元1002用于接收第三信息，该第三信息用于配置第二资源，该第二资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该处理单元1001用于控制该收发单元1002在该第二资源上接收该参考信号。
一种可能的实现方式中，当该装置10为用于执行前述实施例中第二通信装置所执行的方法时，该装置10包括处理单元1001和收发单元1002；该处理单元1001用于确定第三信息；该收发单元1002用于发送第三信息，该第三信息用于配置第二资源，该第二资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该收发单元1002还用于在该第二资源上发送该参考信号。
一种可能的实现方式中，当该装置10为用于执行前述实施例中第一通信装置所执行的方法时，该装置10包括处理单元1001和收发单元1002；该收发单元1002用于接收第四信息，该第四信息用于配置第三资源，该第三资源用于承载参考信号；其中，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的；该处理单元1001用于控制该收发单元1002在该第三资源上接收该参考信号。
一种可能的实现方式中，当该装置10为用于执行前述实施例中第二通信装置所执行的方法时，该装置10包括处理单元1001和收发单元1002；该处理单元1001用于确定第四信息；该收发单元1002用于发送第四信息，该第四信息用于配置第三资源，该第三资源用于承载参考信号；其中，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的；该收发单元1002还用于在该第三资源上发送该参考信号。
一种可能的实现方式中，当该装置10为用于执行前述实施例中第一通信装置所执行的方法时，该装置10包括处理单元1001和收发单元1002；该处理单元1001用于生成参考信号，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的；该收发单元1002用于发送该参考信号。
一种可能的实现方式中，当该装置10为用于执行前述实施例中第二通信装置所执行的方法时，该装置1000包括收发单元1002；该收发单元1002用于接收参考信号，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。
需要说明的是，上述通信装置10的单元的信息执行过程等内容，具体可参见本申请前述所示的方法实施例中的叙述，此处不再赘述。
请参阅图11，为本申请提供的通信装置1100的另一种示意性结构图，通信装置1100包括逻辑电路1101和输入输出接口1102。其中，通信装置1100可以为芯片或集成电路。
其中，图10所示收发单元1002可以为通信接口，该通信接口可以是图11中的输入输出接口1102，该输入输出接口1102可以包括输入接口和输出接口。或者，该通信接口也可以是收发电路，该收发电路可以包括输入接口电路和输出接口电路。
可选的，该输入输出接口1102用于接收第一信息，该第一信息用于配置第一资源，该第一资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该逻辑电路1101用于控制该输入输出接口1102在该第一资源上接收该参考信号。其中，逻辑电路1101和输入输出接口1102还可以执行前述实施例中第一通信装置执行的其他步骤并实现对应的有益效果，此处不再赘述。
可选的，该逻辑电路1101用于确定第一信息；该输入输出接口1102用于发送第一信息，该第一信息用于配置第一资源，该第一资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该输入输出接口1102还用于在该第一资源上发送该参考信号。其中，逻辑电路1101和输入输出接口1102还可以执行前述实施例中第二通信装置执行的其他步骤并实现对应的有益效果，此处不再赘述。
可选的，该输入输出接口1102用于接收第三信息，该第三信息用于配置第二资源，该第二资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该逻辑电路1101用于控制该输入输出接口1102在该第二资源上接收该参考信号。其中，逻辑电路1101和输入输出接口1102还可以执行前述实施例中第一通信装置执行的其他步骤并实现对应的有益效果，此处不再赘述。
可选的，该逻辑电路1101用于确定第三信息；该输入输出接口1102用于发送第三信息，该第三信息用于配置第二资源，该第二资源用于承载参考信号；其中，该第一资源包括K个时间单元，K为大于1的整数；该输入输出接口1102还用于在该第二资源上发送该参考信号。其中，逻辑电路1101和输入输出接口1102还可以执行前述实施例中第二通信装置执行的其他步骤并实现对应的有益效果，此处不再赘述。
可选的，该输入输出接口1102用于接收第四信息，该第四信息用于配置第三资源，该第三资源用于承载参考信号；其中，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的；该逻辑电路1101用于控制该输入输出接口1102在该第三资源上接收该参考信号。其中，逻辑电路1101和输入输出接口1102还可以执行前述实施例中第一通信装置执行的其他步骤并实现对应的有益效果，此处不再赘述。
可选的，该逻辑电路1101用于确定第四信息；该输入输出接口1102用于发送第四信息，该第四信息用于配置第三资源，该第三资源用于承载参考信号；其中，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的；该输入输出接口1102还用于在该第三资源上发送该参考信号。其中，逻辑电路1101和输入输出接口1102还可以执行前述实施例中第二通信装置执行的其他步骤并实现对应的有益效果，此处不再赘述。
可选的，该逻辑电路1101用于生成参考信号，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的；该输入输出接口1102用于发送该参考信号。其中，逻辑电路1101和输入输出接口1102还可以执行前述实施例中第一通信装置执行的其他步骤并实现对应的有益效果，此处不再赘述。
可选的，该输入输出接口1102用于接收参考信号，该参考信号是基于ZC序列生成的，或，该参考信号是基于该ZC序列和Gold序列生成的，或，该参考信号是基于循环移位序列生成的。其中，逻辑电路1101和输入输出接口1102还可以执行前述实施例中第二通信装置执行的其他步骤并实现对应的有益效果，此处不再赘述。
在一种可能的实现方式中，图10所示处理单元1001可以为图11中的逻辑电路1101。
可选的，逻辑电路1101可以是一个处理装置，处理装置的功能可以部分或全部通过软件实现。其中，处理装置的功能可以部分或全部通过软件实现。
可选的，处理装置可以包括存储器和处理器，其中，存储器用于存储计算机程序或指令，处理器读取并执行存储器中存储的计算机程序或指令，以执行任意一个方法实施例中的相应处理和/或步骤。
可选地，处理装置可以仅包括处理器。用于存储计算机程序或指令的存储器位于处理装置之外，处理器通过电路/电线与存储器连接，以读取并执行存储器中存储的计算机程序或指令。其中，存储器和处理器可以集成在一起，或者也可以是物理上互相独立的。
可选地，该处理装置可以是一个或多个芯片，或一个或多个集成电路。例如，处理装置可以是一个或多个现场可编程门阵列(field-programmable gate array，FPGA)、专用集成芯片(application specific integrated circuit，ASIC)、系统芯片(system on chip，SoC)、中央处理器(central processor unit，CPU)、网络处理器(network processor，NP)、数字信号处理电路(digital signal processor，DSP)、微控制器(micro controller unit，MCU)，可编程控制器(programmable logic device，PLD)或其它集成芯片，或者上述芯片或者处理器的任意组合等。
请参阅图12，为本申请的实施例提供的上述实施例中所涉及的通信装置1200，该通信装置1200具体可以为上述实施例中的作为终端设备的通信装置，图12所示示例为终端设备通过终端设备(或者终端设备中的部件)实现。
其中，该通信装置1200的一种可能的逻辑结构示意图，该通信装置1200可以包括但不限于至少一个处理器1201以及通信端口1202。
进一步可选的，该装置还可以包括存储器1203、总线1204中的至少一个，在本申请的实施例中，该至少一个处理器1201用于对通信装置1200的动作进行控制处理。
此外，处理器1201可以是中央处理器单元，通用处理器，数字信号处理器，专用集成电路，现场可编程门阵列或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。该处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，数字信号处理器和微处理器的组合等等。所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
需要说明的是，图12所示通信装置1200具体可以用于实现前述方法实施例中终端设备所实现的步骤，并实现终端设备对应的技术效果，图12所示通信装置的具体实现方式，均可以参考前述方法实施例中的叙述，此处不再一一赘述。
请参阅图13，为本申请的实施例提供的上述实施例中所涉及的通信装置1300的结构示意图，该通信装置1300具体可以为上述实施例中的作为网络设备的通信装置，图13所示示例为网络设备通过网络设备(或者网络设备中的部件)实现，其中，该通信装置的结构可以参考图13所示的结构。
通信装置1300包括至少一个处理器1311以及至少一个网络接口1314。进一步可选的，该通信装置还包括至少一个存储器1312、至少一个收发器1313和一个或多个天线1315。处理器1311、存储器1312、收发器1313和网络接口1314相连，例如通过总线相连，在本申请实施例中，该连接可包括各类接口、传输线或总线等，本实施例对此不做限定。天线1315与收发器1313相连。网络接口1314用于使得通信装置通过通信链路，与其它通信设备通信。例如网络接口1314可以包括通信装置与核心网设备之间的网络接口，例如S1接口，网络接口可以包括通信装置和其他通信装置(例如其他网络设备或者核心网设备)之间的网络接口，例如X2或者Xn接口。
处理器1311主要用于对通信协议以及通信数据进行处理，以及对整个通信装置进行控制，执行软件程序，处理软件程序的数据，例如用于支持通信装置执行实施例中所描述的动作。通信装置可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端设备进行控制，执行软件程序，处理软件程序的数据。图13中的处理器1311可以集成基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端设备可以包括多个基带处理器以适应不同的网络制式，终端设备可以包括多个中央处理器以增强其处理能力，终端设备的各个部件可以通过各种总线连接。该基带处理器也可以表述为基带处理电路或者基带处理芯片。该中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储器中，由处理器执行软件程序以实现基带处理功能。
存储器主要用于存储软件程序和数据。存储器1312可以是独立存在，与处理器1311相连。可选的，存储器1312可以和处理器1311集成在一起，例如集成在一个芯片之内。其中，存储器1312能够存储执行本申请实施例的技术方案的程序代码，并由处理器1311来控制执行，被执行的各类计算机程序代码也可被视为是处理器1311的驱动程序。
图13仅示出了一个存储器和一个处理器。在实际的终端设备中，可以存在多个处理器和多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以为与处理器处于同一芯片上的存储元件，即片内存储元件，或者为独立的存储元件，本申请实施例对此不做限定。
收发器1313可以用于支持通信装置与终端之间射频信号的接收或者发送，收发器1313可以与天线1315相连。收发器1313包括发射机Tx和接收机Rx。具体地，一个或多个天线1315可以接收射频信号，该收发器1313的接收机Rx用于从天线接收该射频信号，并将射频信号转换为数字基带信号或数字中频信号，并将该数字基带信号或数字中频信号提供给该处理器1311，以便处理器1311对该数字基带信号或数字中频信号做进一步的处理，例如解调处理和译码处理。此外，收发器1313中的发射机Tx还用于从处理器1311接收经过调制的数字基带信号或数字中频信号，并将该经过调制的数字基带信号或数字中频信号转换为射频信号，并通过一个或多个天线1315发送该射频信号。具体地，接收机Rx可以选择性地对射频信号进行一级或多级下混频处理和模数转换处理以得到数字基带信号或数字中频信号，该下混频处理和模数转换处理的先后顺序是可调整的。发射机Tx可以选择性地对经过调制的数字基带信号或数字中频信号时进行一级或多级上混频处理和数模转换处理以得到射频信号，该上混频处理和数模转换处理的先后顺序是可调整的。数字基带信号和数字中频信号可以统称为数字信号。
收发器1313也可以称为收发单元、收发机、收发装置等。可选的，可以将收发单元中用于实现接收功能的器件视为接收单元，将收发单元中用于实现发送功能的器件视为发送单元，即收发单元包括接收单元和发送单元，接收单元也可以称为接收机、输入口、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
需要说明的是，图13所示通信装置1300具体可以用于实现前述方法实施例中网络设备所实现的步骤，并实现网络设备对应的技术效果，图13所示通信装置1300的具体实现方式，均可以参考前述方法实施例中的叙述，此处不再一一赘述。
本申请实施例还提供一种计算机可读存储介质，用于存储一个或多个计算机执行指令，当计算机执行指令被处理器执行时，该处理器执行如前述实施例中通信装置(例如终端设备或网络设备)可能的实现方式所述的方法。
本申请实施例还提供一种计算机程序产品(或称计算机程序)，当计算机程序产品被该处理器执行时，该处理器执行上述通信装置(例如终端设备或网络设备)可能实现方式的方法。
本申请实施例还提供了一种芯片系统，该芯片系统包括至少一个处理器，用于支持通信装置实现上述通信装置可能的实现方式中所涉及的功能。可选的，所述芯片系统还包括接口电路，所述接口电路为所述至少一个处理器提供程序指令和/或数据。在一种可能的设计中，该芯片系统还可以包括存储器，存储器，用于保存该通信装置必要的程序指令和数据。该芯片系统，可以由芯片构成，也可以包含芯片和其他分立器件，其中，该通信装置具体可以为前述方法实施例中的终端设备或网络设备。
本申请实施例还提供了一种通信系统，该网络系统架构包括上述任一实施例中的第一通信装置和第二通信装置。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。

Claims (19)

  1. 一种参考信号的传输方法，其特征在于，包括：
    接收第一信息，所述第一信息用于配置第一资源，所述第一资源用于承载参考信号；其中，所述第一资源包括K个时间单元，K为大于1的整数；在所述K个时间单元中，至少两个时间单元的复用端口数量是不同的；
    在所述第一资源上接收所述参考信号。
  2. 一种参考信号的传输方法，其特征在于，包括：
    发送第一信息，所述第一信息用于配置第一资源，所述第一资源用于承载参考信号；其中，所述第一资源包括K个时间单元，K为大于1的整数；在所述K个时间单元中，至少两个时间单元的复用端口数量是不同的；
    在所述第一资源上发送所述参考信号。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一信息包括以下至少一项：
    第一指示信息，指示所述K个时间单元中的每个时间单元的复用端口信息；其中，所述复用端口信息用于指示时域码分组、频域码分组、频域间隔、频域起始位置、复用端口数量中的至少一项；
    第二指示信息，指示所述K个时间单元的每个时间单元包含的符号数量；
    第三指示信息，指示所述K个时间单元的复用端口总数。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，所述K个时间单元满足以下至少一项：
    所述K个时间单元中的每个时间单元的复用端口数量为8、12、16、24、32、48、64、96、128、192、256或512；
    所述K个时间单元中的至少一个时间单元的复用端口数量为8、12、16、24、32、48、64、96、128、192、256或512；
    所述K个时间单元的复用端口总数为16、32、48、64、96、128、192、256、384、512、768、或1024；
    所述K个时间单元中的至少一个时间单元为1个正交频分复用OFDM符号、2个OFDM符号、3个OFDM符号或4个OFDM符号；
    在所述K个时间单元上，至少两个时间单元的时间长度不同；
    在所述K个时间单元上，至少两个时间单元上的频域单元数量不同；
    在所述K个时间单元上，至少两个时间单元对应的码分复用CDM组不同；
    在所述K个时间单元上，至少两个时间单元承载的参考信号序列对应的循环移位CS不同；
    在所述K个时间单元上，至少两个时间单元上的资源或序列映射的频域间隔不同；或
    在所述K个时间单元上，至少两个时间单元占用的频域宽度不同。
  5. 根据权利要求1至4任一项所述的方法，其特征在于，所述K个时间单元的复用端口总数为PRS，PRS个端口包括第1个时间单元复用的P0个端口...第K个时间单元复用的PK-1个端口，P0...PK-1均大于1；
    其中，PRS个端口与所述K个时间单元的映射顺序为：
    第1个时间单元复用的P0个端口中的前个端口...第K个时间单元复用的PK-1个端口中的前个端口、第1个时间单元复用的P0个端口中的后个端口...第K个时间单元复用的PK-1个端口中的后个端口。
  6. 根据权利要求1至5任一项所述的方法，其特征在于，所述K个时间单元满足以下至少一项：
    所述K个时间单元中的第i时间单元复用的Pi个端口中的后个端口的映射顺序，位于所述K个时间单元中的第j时间单元复用的Pj个端口中的前个端口的映射顺序之后，i和j均为1至K中的任一个，Pi和Pj均大于1；
    所述K个时间单元中的第i+1时间单元复用的Pi+1个端口中的前个端口的映射顺序，位于所述K个时间单元中的第i时间单元复用的Pi个端口中的前个端口的映射顺序之后；
    所述K个时间单元中的第i+1时间单元复用的Pi+1个端口中的后个端口的映射顺序，位于所述K个时间单元中的第i时间单元复用的Pi个端口中的后个端口的映射顺序之后。
  7. 根据权利要求1至6任一项所述的方法，其特征在于，所述参考信号是基于ZC序列生成的，或，所述参考信号是基于所述ZC序列和Gold序列生成的，或，所述参考信号是基于循环移位序列生成的。
  8. 根据权利要求1至7任一项所述的方法，其特征在于，所述参考信号满足：
    或，
    或，
    或，
    或，
    xu[m]＝exp(-j2πm×CS)；或，
    xu[m]＝exp(-j2πm×CS)×r(m)；
    其中，xu[m]表示所述参考信号，N为映射的频域数量，NZC为序列长度，j为虚数单位，u为根序列索引，CS为循环移位值，r(m)表示Gold序列。
  9. 根据权利要求1至8任一项所述的方法，其特征在于，所述至少两个时间单元的复用端口数量是不同的，包括：
    任意两个时间单元的复用端口数量是不同的。
  10. 一种参考信号的传输方法，其特征在于，包括：
    接收第一信息，所述第一信息用于配置第一资源，所述第一资源用于承载参考信号；其中，所述第一资源包括K个时间单元，K为大于1的整数；在所述K个时间单元中，每个时间单元上复用的端口数量为8、12、16、24、32、48、64、96、128、192、256或512；
    在所述第一资源上接收所述参考信号。
  11. 一种参考信号的传输方法，其特征在于，包括：
    发送第一信息，所述第一信息用于配置第一资源，所述第一资源用于承载参考信号；其中，所述第一资源包括K个时间单元，K为大于1的整数；在所述K个时间单元中，每个时间单元上复用的端口数量为8、12、16、24、32、48、64、96、128、192、256或512；
    在所述第一资源上发送所述参考信号。
  12. 根据权利要求10或11所述的方法，其特征在于，所述K个时间单元的频域单元的间隔是相同的。
  13. 根据权利要求10至12任一项所述的方法，其特征在于，所述K个时间单元为K个OFDM符号，K取值为1、2、3、或4。
  14. 根据权利要求9至13任一项所述的方法，其特征在于，在所述K个时间单元上，复用端口的总数量为32、48、64、96、128、192、或256。
  15. 一种通信装置，其特征在于，包括用于执行如权利要求1至14任一项所述的方法的模块。
  16. 一种通信装置，其特征在于，包括至少一个处理器，所述至少一个处理器用于执行计算机程序或指令，以实现如权利要求1至14中任一项所述的方法。
  17. 根据权利要求16所述的通信装置，其特征在于，所述通信装置为芯片或芯片系统。
  18. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机程序或指令，当所述计算机程序或指令被通信装置执行时，实现如权利要求1至14中任一项所述的方法。
  19. 一种计算机程序产品，其特征在于，包括计算机程序或指令，当所述计算机程序或指令被计算机执行时，实现如权利要求1至14中任一项所述的方法。
PCT/CN2025/103994 2024-06-28 2025-06-26 一种参考信号的传输方法及相关装置 Pending WO2026002145A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202410878024.0 2024-06-28
CN202410878024.0A CN121239376A (zh) 2024-06-28 2024-06-28 一种参考信号的传输方法及相关装置

Publications (1)

Publication Number Publication Date
WO2026002145A1 true WO2026002145A1 (zh) 2026-01-02

Family

ID=98160491

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2025/103994 Pending WO2026002145A1 (zh) 2024-06-28 2025-06-26 一种参考信号的传输方法及相关装置

Country Status (2)

Country Link
CN (1) CN121239376A (zh)
WO (1) WO2026002145A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019050367A1 (ko) * 2017-09-08 2019-03-14 엘지전자 주식회사 무선 통신 시스템에서 참조 신호를 송수신하기 위한 방법 및 이를 위한 장치
CN111541526A (zh) * 2019-01-21 2020-08-14 华为技术有限公司 参考信号的传输方法及装置
CN113259287A (zh) * 2020-02-13 2021-08-13 华为技术有限公司 一种通信方法及装置
CN115380493A (zh) * 2020-05-06 2022-11-22 华为技术有限公司 一种发送和接收上行参考信号的方法及通信装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019050367A1 (ko) * 2017-09-08 2019-03-14 엘지전자 주식회사 무선 통신 시스템에서 참조 신호를 송수신하기 위한 방법 및 이를 위한 장치
CN111541526A (zh) * 2019-01-21 2020-08-14 华为技术有限公司 参考信号的传输方法及装置
CN113259287A (zh) * 2020-02-13 2021-08-13 华为技术有限公司 一种通信方法及装置
CN115380493A (zh) * 2020-05-06 2022-11-22 华为技术有限公司 一种发送和接收上行参考信号的方法及通信装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
QUALCOMM INCORPORATED: "Reference signals for e-PDCCH", 3GPP DRAFT; R1-122791 REFERENCE SIGNALS FOR E-PDCCH, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Prague, Czech Republic; 20120521 - 20120525, 12 May 2012 (2012-05-12), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP050600969 *

Also Published As

Publication number Publication date
CN121239376A (zh) 2025-12-30

Similar Documents

Publication Publication Date Title
CN115088224B (zh) 一种信道状态信息反馈方法及通信装置
CN108028684B (zh) 多天线无线通信系统中的基于码本的信号发送/接收方法及其设备
CN110324072B (zh) 用于传输子空间选择的方法、装置和介质
CN111342913B (zh) 一种信道测量方法和通信装置
CN107925466A (zh) 多天线无线通信系统中的基于码本的信号发送/接收方法及其设备
CN107925451A (zh) 多天线无线通信系统中的基于码本的信号发送/接收方法及其设备
WO2022002079A1 (zh) 预编码矩阵确定方法及装置
CN111817798A (zh) 一种信道测量方法和通信装置
WO2021179311A1 (zh) 一种信道状态信息csi测量的指示方法和通信装置
EP4040699A1 (en) Method for configuring transmission port of a downlink reference signal, and communication apparatus
WO2022227976A1 (zh) 通信方法和通信装置
CN115483950A (zh) 一种信道状态信息的反馈方法及装置
WO2021081847A1 (zh) 一种信道测量方法和通信装置
WO2022066747A1 (en) Device and method for performing csi reporting for type ii port selection codebook
WO2026002145A1 (zh) 一种参考信号的传输方法及相关装置
WO2025113124A1 (zh) 通信方法及相关设备
WO2025246736A1 (zh) 一种通信方法及装置
WO2025113117A1 (zh) 一种通信方法及相关设备
CN119232334A (zh) 一种通信方法及装置
WO2026086600A1 (zh) 通信方法及相关装置
CN120785388A (zh) 一种上报信道状态信息的方法及装置
WO2026032389A1 (zh) 一种通信方法及装置
WO2025247042A1 (zh) 通信方法和装置
CN120128966A (zh) 通信方法及相关装置
WO2026032371A1 (zh) 通信方法和通信装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 25826172

Country of ref document: EP

Kind code of ref document: A1