WO2018137223A1

WO2018137223A1 - Method and device for transmitting reference signal, and method and device for receiving reference signal

Info

Publication number: WO2018137223A1
Application number: PCT/CN2017/072709
Authority: WO
Inventors: 吴作敏; 李超君; 邵家枫; 马莎
Original assignee: 华为技术有限公司
Priority date: 2017-01-25
Filing date: 2017-01-25
Publication date: 2018-08-02
Also published as: CN110169172A

Abstract

Provided are a method and device for transmitting a reference signal, and a method and device for receiving a reference signal. The method comprises: a terminal apparatus determining time-domain information and frequency-domain information of a first resource, the first resource being used for carrying a first reference signal, the time-domain information indicating a time-domain location of the reference signal, and the frequency-domain information indicating a frequency-domain pattern of the reference signal, wherein the time-domain information and the frequency-domain information of the first resource have a first mapping relationship; and the terminal apparatus transmitting the first reference signal on the first resource, such that signaling overheads required for instructing uplink transmission can be reduced, thereby increasing downlink transmission efficiency.

Description

Method and device for transmitting reference signal and method and device for receiving reference signal

Technical field

Embodiments of the present invention relate to the field of communications, and more particularly, to a method and apparatus for transmitting a reference signal and a method and apparatus for receiving a reference signal.

Background technique

In order to improve the reliability and accuracy of the uplink transmission, the terminal device transmits an uplink reference signal during the uplink transmission.

Moreover, in the prior art, when transmitting the uplink reference signal, the terminal device needs to determine the time domain resource and the frequency domain resource used by the uplink reference signal.

In this regard, in the prior art, the network device may separately send the related indication information of the time domain resource used by the uplink reference signal and the related indication information of the frequency domain resource used by the uplink reference signal to the terminal device in the downlink transmission process. That is, in the prior art, the time domain resource and the frequency domain resource of the uplink reference signal are respectively indicated. Therefore, the signaling used to indicate the uplink reference signal transmission in the prior art has a large overhead. To ensure the reliability of the signaling transmission, a large amount of downlink time-frequency resources are required, resulting in a decrease in downlink transmission efficiency.

Therefore, it is desirable to provide a technique capable of reducing the overhead of signaling for indicating uplink transmission and improving the efficiency of downlink transmission.

Summary of the invention

The method and device for transmitting a reference signal and the method and device for receiving a reference signal can reduce the overhead of signaling for indicating uplink transmission and improve the efficiency of downlink transmission.

In a first aspect, a method for transmitting a reference signal is provided, the method includes: determining, by a terminal device, time domain information and frequency domain information of a first resource, where the first resource is used to carry a first reference signal, where the time domain information is used The frequency domain information is used to indicate a frequency domain pattern of the reference signal, where the time domain information of the first resource has a first mapping relationship with the frequency domain information of the first resource; The device sends the first reference signal on the first resource.

According to the method for transmitting a reference signal according to an embodiment of the present invention, by having a mapping relationship between the time domain information of the first resource carrying the first reference signal and the frequency domain information, it is possible to synchronously determine the frequency domain information when determining the time domain information, thereby The overhead of signaling for indicating uplink reference signal transmission can be reduced, and further, the requirement for downlink time-frequency resources is reduced, thereby improving downlink transmission efficiency.

Optionally, the frequency domain information includes first frequency domain information or second frequency domain information, where the first frequency domain information is used to indicate a frequency domain pattern when the reference signal uses a resource in a frequency division multiplexing manner, and the second frequency The domain information is used to indicate a frequency domain pattern when the reference signal uses resources in a non-frequency division multiplexing manner.

Optionally, the non-frequency division multiplexing manner includes a code division multiplexing manner.

Optionally, before the terminal device determines the time domain information and the frequency domain information of the first resource that is used to carry the first reference signal, the method further includes: receiving, by the terminal device, the first indication information sent by the network device, where The first indication information is used to indicate that the frequency domain information of the first resource is the first frequency domain information or the second frequency domain information; and the terminal device determines, according to the first indication information, that the first reference signal is used to carry the first reference signal. Whether the frequency domain information of the first resource is the first frequency domain information or the second frequency domain information.

Therefore, the method for transmitting the reference signal according to the embodiment of the present invention can further improve the practicability of the embodiment of the present invention for supporting multiple resource multiplexing modes.

Optionally, the time domain information is specifically used to indicate a time domain offset between a time unit carrying the reference signal and a time unit carrying the data signal, wherein the reference signal is used for demodulation of the data signal.

Optionally, the first time domain offset is less than or equal to the second time domain offset, where the first time domain offset is carried when the first reference signal uses resources in a frequency division multiplexing manner. a maximum time domain offset between a time unit of the reference signal and a time unit carrying the first data signal, the second time domain offset being carried when the first reference signal uses resources in a non-frequency division multiplexing manner a maximum time domain offset between the time unit of the first reference signal and a time unit carrying the first data signal, the first data signal being demodulated based on the first reference signal.

Optionally, the time domain information is specifically used to indicate a location of a symbol carrying the reference signal in a time unit for carrying the reference signal.

Optionally, the time domain information is specifically used to indicate a location of a time unit carrying the reference signal in a transmission period to which the time unit belongs.

Optionally, the time domain information of the first resource indicates that the first reference signal is carried in the first time unit, and the first time unit is further configured to carry the second reference signal, where the second reference signal is the second terminal a reference signal sent by the device, and when the first reference signal and the second reference signal are carried by the same symbol in the first time unit, the first pattern is different from the second pattern, the first pattern is the first And a pattern indicated by the frequency domain information of the resource, where the second pattern is a pattern indicated by frequency domain information of the second resource, where the second resource is used to carry the second reference signal.

Optionally, the time domain information of the first resource indicates that the first reference signal is carried in the first time unit, and the first time unit is further configured to carry the second reference signal, where the second reference signal is the second terminal a reference signal sent by the device, and the first time unit is not used to carry data sent by the second terminal device, and when the first reference signal and the second reference signal are carried by the same symbol in the first time unit, The first pattern is different from the second pattern, where the first pattern is a pattern indicated by frequency domain information of the first resource, and the second pattern is a pattern indicated by frequency domain information of the second resource, where the second resource is used for carrying The second reference signal.

Optionally, the time domain information of the first resource indicates that the first reference signal is carried in the first time unit, the first data signal demodulated based on the first reference signal is carried in the second time unit, and at the first When the time unit and the second time unit are different time units (ie, the data signal demodulated based on the first reference signal is not carried on the first time unit), the frequency domain information indicating the first resource indicates a pattern a first pattern, where the first time unit and the second time unit are the same time unit (ie, the first time unit carries a data signal demodulated based on the first reference signal), the first The pattern indicated by the frequency domain information of the resource is a second pattern, wherein the first pattern is different from the second pattern.

Optionally, the time domain information of the first resource indicates that the first reference signal is carried in the first time unit, the first data signal demodulated based on the first reference signal is carried in the second time unit, and the first time Where the unit and the second time unit are different time units (ie, the data signal demodulated based on the first reference signal is not carried on the first time unit), the pattern indicated by the first resource frequency domain information is a pattern, the first pattern is a pattern corresponding to an odd subcarrier, or the first pattern is a pattern corresponding to an even subcarrier.

Optionally, the first mapping relationship is specifically determined by using a function of the time domain information of the first resource as a variable.

Optionally, the terminal device determines the time domain information and the frequency domain information of the first resource that is used to carry the first reference signal, where the terminal device receives the second indication information that is sent by the network device, where the second indication information includes The first The time domain information of the resource; the terminal device determines the frequency domain information of the first resource according to the time domain information of the first resource and the first mapping relationship.

According to the method for transmitting a reference signal according to an embodiment of the present invention, the terminal device can be based on the time domain information of the first resource and the mapping by causing the time domain information of the first resource carrying the first reference signal to have a mapping relationship with the frequency domain information. The relationship between the frequency domain information of the first resource is determined, so that signaling for indicating the frequency domain information can be omitted, and signaling overhead can be reduced, and the requirement for downlink time-frequency resources can be reduced, thereby improving downlink Transmission efficiency.

Optionally, the first mapping relationship is that the time domain information of the first resource and the frequency domain information of the first resource belong to the same parameter set in the N parameter sets, where N≥2, the N parameter sets Each parameter set includes a time domain information and a frequency domain information, and at least one of the time domain information and the frequency domain information between any two parameter sets is different.

Optionally, the determining, by the terminal device, the frequency domain information of the first resource according to the time domain information of the first resource, and the first mapping relationship, the terminal device, according to the time domain information of the first resource, from the N In the parameter set, the first parameter set is determined, wherein each of the N parameter sets includes a time domain information and a frequency domain information, and time domain information and frequency domain information between any two parameter sets are At least one of the first parameter sets is a parameter set to which the time domain information of the first resource belongs in the N parameter sets; the terminal device uses the frequency domain information included in the first parameter set as the first Frequency domain information of the resource.

Optionally, the terminal device determines the time domain information and the frequency domain information of the first resource that is used to carry the first reference signal, where the terminal device receives the third indication information sent by the network device, where the third indication information is used by the terminal device. And indicating an identifier of the first parameter set in the N parameter sets, where N≥2, each of the N parameter sets includes a time domain information and a frequency domain information, between any two parameter sets At least one of the time domain information and the frequency domain information is different; the terminal device uses the time domain information and the frequency domain information included in the first parameter set as the time domain information and the frequency domain information of the first resource.

The method for transmitting a reference signal according to the embodiment of the present invention has a mapping relationship between time domain information and frequency domain information of a first resource carrying a first reference signal, and the mapping relationship is: time domain information of the first resource and The frequency domain information belongs to the same parameter set (ie, the first parameter set), and the terminal device can determine the time domain information and the frequency domain information of the first resource at one time based on the index of the first parameter set, thereby being able to be separately used. In the signaling indicating the time domain information and the frequency domain information, the signaling overhead can be reduced, and the requirement for downlink time-frequency resources can be reduced, thereby improving downlink transmission efficiency.

Optionally, the method further includes: determining, by the terminal device, sequence information of a first sequence set used by the first reference signal, where the sequence information is used to indicate a sequence included in the sequence set, where the first sequence set includes at least one a sequence, the time domain information of the first resource has a second mapping relationship with the sequence information of the first sequence set; and the terminal device sends the first reference signal on the first resource, where the terminal device is in the And transmitting, by the first resource, the first reference signal according to the sequence information of the first sequence set.

According to the method for transmitting a reference signal according to the embodiment of the present invention, by having a mapping relationship between the time domain information of the first resource carrying the first reference signal and the sequence information of the first sequence set, the synchronization determining sequence can be realized when determining the time domain information. The information, and thus, the signaling overhead for transmitting the sequence information and the time domain information can be reduced. Further, the signaling overhead can be reduced, and the demand for the downlink time-frequency resources can be reduced, thereby improving the downlink transmission efficiency.

Optionally, the second mapping relationship is specifically determined by using a function of the time domain information of the first resource as a variable.

Optionally, the terminal device determines sequence information of the first sequence set used by the first reference signal, including: The time domain information of the first resource and the second mapping relationship of the terminal device determine sequence information of the first sequence set.

Optionally, the second mapping relationship is that the time domain information of the first resource and the sequence information of the first sequence set belong to the same parameter set in the M parameter sets, where M≥2, the M parameter sets Each parameter set includes a time domain information and a sequence information, and at least one of the time domain information and the sequence information between any two parameter sets is different.

Optionally, the terminal device determines the sequence information of the first sequence set used by the first reference signal, where the terminal device receives the fourth indication information sent by the network device, where the fourth indication information is used to indicate the M parameter sets. An identifier of the second parameter set, wherein M≥2, each of the M parameter sets includes a time domain information and a sequence information, time domain information and sequence information between any two parameter sets At least one of the terminals is different; the terminal device uses the time domain information and the sequence information included in the second parameter set as the time domain information of the first resource and the sequence information of the first sequence set.

Optionally, the method further includes: receiving, by the terminal device, fifth indication information that is sent by the network device, where the fifth indication information is used to indicate sequence information of the first sequence set used by the first reference signal, where the sequence information is used for And indicating that the sequence set includes a sequence, the first sequence set includes at least one sequence, and the terminal device sends the first reference signal on the first resource, where the terminal device is on the first resource, based on the Sequence information of a sequence of sets, the first reference signal is transmitted.

Optionally, the first sequence set includes Q sequences, where the first reference signal includes P reference signal sequences for P layer data transmission, and the P reference signal sequences of the first reference signal are in the first sequence set. Sequence, where P ≤ Q, Q ≥ 1.

Alternatively, Q is any one of 1, 2 or 4.

Optionally, when the reference signal uses the resource in a frequency division multiplexing manner, the cyclic shift of each sequence in the first sequence set is a value of a cyclic shift of each sequence in the second sequence set. Rounding up by 2, or the sequence information of the first sequence set is taken as the cyclic shift of each sequence in the second sequence set. The value of the cyclic shift of each sequence is divided by 2 and then rounded down. The cyclic shift of the sequence in the second sequence set ranges from 0 to 11.

Optionally, the terminal device determines time domain information and frequency domain information of the first resource used to carry the first reference signal, where the terminal device receives K control information, and each of the K control information is controlled. The information is used to indicate that the terminal device sends the reference signal on the third time unit, K≥2; the terminal device determines the time domain information and the frequency domain information of the first resource according to the first control information in the K control information. The first control information is the kth control information received by the terminal device in the K control information, where k is a preset value, and 0<k≤K.

Optionally, the first control information is the first control information received by the terminal device in the K control information.

Optionally, the first data signal demodulated based on the first reference signal is carried in at least two consecutive second time units.

Optionally, the first symbol carrying the first reference signal belongs to the at least two second time units, and the number of symbols spaced between the first symbol and the second symbol is less than or equal to a first threshold, where The second symbol is a symbol that includes the largest number of symbols in the symbol carrying the first data signal and the first symbol included in the at least two second time units.

Optionally, the first symbol carrying the first reference signal does not belong to the at least two second time units, and the first symbol is continuous with the at least two second time units, and the first symbol and the first symbol The number of symbols of the interval between the three symbols is less than or equal to a second threshold, wherein when the first symbol is located before the at least two second time units, The third symbol is the last one of the symbols of the at least two second time units that carries the first data signal; or, when the first symbol is located after the at least two second time units, the The three symbols are the first one of the symbols of the at least two second time units that carry the first data signal.

Optionally, the first threshold is the same as the second threshold.

Optionally, the first symbol carrying the first reference signal does not belong to the at least two second time units, and the first symbol is non-contiguous with the at least two second time units, and the first symbol is The number of symbols of the interval between the fourth symbols is less than or equal to a third threshold, wherein when the first symbol is located before the at least two second time units, the fourth symbol is included by the at least two second time units Carrying a first one of the symbols of the first data signal; or, when the first symbol is located after the at least two second time units, the fourth symbol is a bearer included in the at least two second time units The last symbol in the symbol of the first data signal.

Optionally, the third threshold is less than or equal to the second threshold.

Optionally, the third threshold is 2.

A second aspect provides a method for receiving a reference signal, where the method includes: determining, by a network device, time domain information and frequency domain information of a first resource, where the first resource is used to carry a first reference signal, where the time domain information is used The frequency domain information is used to indicate a frequency domain pattern of the reference signal, where the time domain information of the first resource has a first mapping relationship with the frequency domain information of the first resource; the network The device receives the first reference signal on the first resource.

According to the method for receiving a reference signal according to the embodiment of the present invention, by having a mapping relationship between the time domain information of the first resource carrying the first reference signal and the frequency domain information, it is possible to synchronously determine the frequency domain information when determining the time domain information, thereby The overhead of signaling for indicating uplink reference signal transmission can be reduced, and further, the requirement for downlink time-frequency resources is reduced, thereby improving downlink transmission efficiency.

Optionally, the method further includes: the network device sending the first indication information to the terminal device, where the first indication information is used to indicate whether the frequency domain information of the first resource is the first frequency domain information or the second frequency Domain information.

Therefore, the method for receiving the reference signal according to the embodiment of the present invention can further improve the practicability of the embodiment of the present invention for supporting multiple resource multiplexing modes.

Optionally, the time domain information of the first resource indicates that the first reference signal is carried in the first time unit, and the first time unit is further configured to carry the second reference signal, where the second reference signal is the second terminal a reference signal sent by the device, and the first time unit is not used to carry data sent by the second terminal device, and when the first reference signal and the second reference signal are carried by the same symbol in the first time unit, The first pattern is different from the second pattern, where the first pattern is a pattern indicated by frequency domain information of the first resource, and the second pattern is a pattern indicated by frequency domain information of the second resource, where the second resource is used for carrying The second reference signal. Optionally, the time domain information of the first resource indicates that the first reference signal is carried in the first time unit, the first data signal demodulated based on the first reference signal is carried in the second time unit, and at the first When the time unit and the second time unit are different time units (ie, the data signal demodulated based on the first reference signal is not carried on the first time unit), the frequency domain information indicating the first resource indicates a pattern a first pattern, where the first time unit and the second time unit are the same time unit (ie, the first time unit carries a data signal demodulated based on the first reference signal), the first The pattern indicated by the frequency domain information of the resource is a second pattern, wherein the first pattern is different from the second pattern.

Optionally, the method further includes: sending, by the network device, second indication information to the terminal device, where the second indication information includes time domain information of the first resource.

According to the method for receiving a reference signal according to an embodiment of the present invention, by having a mapping relationship between time domain information and frequency domain information of a first resource carrying a first reference signal, the terminal device can be based on the time domain information of the first resource and the mapping The relationship between the frequency domain information of the first resource is determined, so that signaling for indicating the frequency domain information can be omitted, and signaling overhead can be reduced, and the requirement for downlink time-frequency resources can be reduced, thereby improving downlink Transmission efficiency.

Optionally, the determining, by the network device, the frequency domain information of the first resource according to the time domain information of the first resource and the first mapping relationship, the network device, according to the time domain information of the first resource, from the N In the parameter set, the first parameter set is determined, wherein each of the N parameter sets includes a time domain information and a frequency domain information, and time domain information and frequency domain information between any two parameter sets are At least one of the first parameter sets is a parameter set to which the time domain information of the first resource belongs in the N parameter sets; the network device uses the frequency domain information included in the first parameter set as the first Frequency domain information of the resource.

Optionally, the method further includes: the network device sending third indication information to the terminal device, where the third indication information is used to indicate an identifier of the first parameter set in the N parameter sets, where N≥2, the N Each parameter set in the parameter set includes a time domain information and a frequency domain information, and at least one of time domain information and frequency domain information between any two parameter sets is different, and the first parameter set includes time The domain information and the frequency domain information are time domain information and frequency domain information of the first resource.

The method for receiving a reference signal according to an embodiment of the present invention has a mapping relationship between time domain information and frequency domain information of a first resource carrying a first reference signal, and the mapping relationship is time domain information of the first resource and The frequency domain information belongs to the same parameter set (ie, the first parameter set), and the terminal device can determine the time domain information and the frequency domain information of the first resource at one time based on the index of the first parameter set, thereby enabling The signaling for indicating the time domain information and the frequency domain information, and further, can reduce signaling overhead, reduce the requirement for downlink time-frequency resources, and thereby improve downlink transmission efficiency.

Optionally, the method further includes: determining, by the network device, sequence information of a first sequence set used by the first reference signal, where the sequence information is used to determine a sequence included in the sequence set, where the first sequence set includes at least one The sequence, the time domain information of the first resource has a second mapping relationship with the sequence information of the first sequence set.

According to the method for receiving a reference signal according to the embodiment of the present invention, by having a mapping relationship between the time domain information of the first resource carrying the first reference signal and the sequence information of the first sequence set, the synchronization determining sequence can be realized when determining the time domain information. The information, and thus, the signaling overhead for transmitting the sequence information and the time domain information can be reduced. Further, the signaling overhead can be reduced, and the demand for the downlink time-frequency resources can be reduced, thereby improving the downlink transmission efficiency.

Optionally, the determining, by the network device, the sequence information of the first sequence set used by the first reference signal, the determining, by the terminal device, determining the first sequence set according to the time domain information of the first resource and the second mapping relationship Sequence information.

Optionally, the method further includes: the network device sending fourth indication information to the terminal device, where the fourth indication information is used to indicate an identifier of the second parameter set in the M parameter sets, where M≥2, the M Each parameter set in the parameter set includes a time domain information and a sequence information, and at least one of time domain information and sequence information between any two parameter sets is different, and the second parameter set includes time domain information. And the sequence information is time domain information of the first resource and sequence information of the first sequence set. .

Optionally, the method further includes: sending, by the network device, the fifth indication information to the terminal device, where the fifth indication information is used to indicate sequence information of the first sequence set used by the first reference signal, where the sequence information is used to determine A sequence set includes a sequence, the first sequence set including at least one sequence.

Alternatively, Q is any one of 1, 2 or 4.

Optionally, when the reference signal uses resources in a frequency division multiplexing manner, each sequence in the first sequence set The value of the cyclic shift is the value of the cyclic shift of each sequence in the second sequence set divided by 2 and rounded up, or the sequence information of the first sequence set is cyclically shifted. The value of the cyclic shift of each sequence in the second sequence set is divided by 2 and rounded down, wherein the cyclic shift of the sequence in the second sequence set ranges from 0 to 11.

Optionally, the method includes: the network device sends K control information, where each of the K control information is used to indicate that the network device sends the reference signal on the third time unit, K≥2, so as to facilitate The terminal device determines time domain information and frequency domain information of the first resource according to the first control information in the K pieces of control information, where the first control information is the kth received by the network device in the K control information. Control information, where k is a preset value, 0 < k ≤ K.

Optionally, the first symbol carrying the first reference signal does not belong to the at least two second time units, and the first symbol is continuous with the at least two second time units, and the first symbol and the first symbol The number of symbols of the interval between the three symbols is less than or equal to the second threshold, wherein when the first symbol is located before the at least two second time units, the third symbol is a bearer included in the at least two second time units a last one of the symbols of the first data signal; or, when the first symbol is located after the at least two second time units, the third symbol is a bearer of the at least two second time units The first symbol in the symbol of a data signal.

Optionally, the first threshold is the same as the second threshold.

Optionally, the third threshold is less than or equal to the second threshold.

Optionally, the third threshold is 2.

In a third aspect, an apparatus for transmitting a reference signal is provided, comprising means for performing the steps of the first aspect and the methods of the implementations of the first aspect.

In a fourth aspect, an apparatus for receiving a reference signal is provided, comprising means for performing the steps of the second aspect and the methods of the implementations of the first aspect.

A fifth aspect provides an apparatus for transmitting a reference signal, comprising a memory and a processor, the memory for storing a computer program, the processor for calling and running the computer program from the memory, such that the device transmitting the reference signal performs the In one aspect and the method of any of the possible implementations of the first aspect.

In a sixth aspect, an apparatus for receiving a reference signal is provided, comprising a memory and a processor for storing a computer program for calling and running the computer program from the memory such that the reference signal is received The apparatus of the second aspect performs the method of any of the possible implementations of the second aspect and the second aspect.

In a seventh aspect, a computer program product is provided, the computer program product comprising: computer program code, when the computer program code is run by a communication unit, a processing unit or a transceiver of a terminal device, or a processor, causing the terminal device The method of any of the possible implementations of the first aspect or the first aspect.

In an eighth aspect, a computer program product is provided, the computer program product comprising: computer program code, when the computer program code is run by a communication unit, a processing unit or a transceiver of a network device, a processor, such that The apparatus performs the method of the second aspect or any one of the possible implementations of the second aspect.

A ninth aspect, a computer readable storage medium storing a program, the program causing a terminal device to perform the method of the first aspect or any one of the possible implementations of the first aspect .

A tenth aspect, a computer readable storage medium storing a program, the program causing a network device to perform the method of any of the possible implementations of the second aspect or the second aspect .

DRAWINGS

1 is a schematic structural diagram of a communication system of a method and apparatus for transmitting a reference signal and a method and apparatus for receiving a reference signal, to which an embodiment of the present invention is applied.

2 is a schematic interaction diagram of an example of a transmission process of a reference signal according to an embodiment of the present invention.

3 is a schematic diagram showing an example of a time domain position of a reference signal according to an embodiment of the present invention.

4 is a schematic diagram of another example of a time domain position of a reference signal according to an embodiment of the present invention.

FIG. 5 is a schematic diagram showing still another example of the time domain position of the reference signal according to the embodiment of the present invention.

Fig. 6 is a diagram showing an example of a frequency domain position of a reference signal according to an embodiment of the present invention.

7 is a schematic diagram of another example of a frequency domain position of a reference signal according to an embodiment of the present invention.

FIG. 8 is a schematic diagram showing still another example of the frequency domain position of the reference signal according to the embodiment of the present invention.

FIG. 9 is a schematic interaction diagram of another example of a transmission process of a reference signal according to an embodiment of the present invention.

FIG. 10 is a schematic block diagram showing an example of an apparatus for transmitting a reference signal according to an embodiment of the present invention.

FIG. 11 is a schematic block diagram showing an example of an apparatus for receiving a reference signal according to an embodiment of the present invention.

FIG. 12 is a schematic block diagram showing another example of an apparatus for receiving a reference signal according to an embodiment of the present invention.

FIG. 13 is a schematic block diagram of another example of an apparatus for transmitting a reference signal according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

The terms "component," "module," "system," and the like, as used in this specification, are used to mean a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and a computing device can be a component. One or more components can reside within a process and/or execution thread, and the components can be located on one computer and/or distributed between two or more computers. Moreover, these components can execute from various computer readable media having various data structures stored thereon. A component may, for example, be based on signals having one or more data packets (eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems) Communicate through local and/or remote processes.

It should be understood that the embodiments of the present invention can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, and Wideband Code Division Multiple Access. (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system , Universal Mobile Telecommunication System (UMTS) or next-generation communication system.

In general, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technologies, mobile communication systems will not only support traditional communication, but also support, for example, device to device (Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), and Vehicle to Vehicle (V2V) communication.

Embodiments of the present invention describe various embodiments in connection with a network device and a terminal device, where:

A terminal device may also be called a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, and a user. Agent or user device. The terminal device may be a station (STAION, ST) in a Wireless Local Area Networks (WLAN), and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, or a wireless local loop (Wireless Local) Loop, WLL) stations, Personal Digital Assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and next-generation communication systems, For example, a terminal device in a fifth-generation (5G) network or a terminal device in a future evolved public land mobile network (PLMN) network.

By way of example and not limitation, in the embodiment of the present invention, the terminal device may also be a wearable device. A wearable device, which can also be called a wearable smart device, is a general term for applying wearable technology to intelligently design and wear wearable devices such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are more than just a hardware device, but they also implement powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-size, non-reliable smartphones for full or partial functions, such as smart watches or smart glasses, and focus on only one type of application, and need to work with other devices such as smartphones. Use, such as various smart bracelets for smart signs monitoring, smart jewelry, etc.

In addition, the network device may be a device for communicating with the mobile device, such as a network device, and the network device may be an access point (APCESS POINT, AP) in the WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, It may be a base station (NodeB, NB) in WCDMA, or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or an access point, or an in-vehicle device, a wearable device, and a future 5G network. Network equipment or network equipment in a future evolved PLMN network.

In addition, in the embodiment of the present invention, the network device provides a service for the cell, and the terminal device communicates with the network device by using a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell, where the cell may be a network device. (e.g., a base station) corresponding to a cell, the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell, where the small cell may include: a metro cell, a micro cell, and a pico cell. (Pico cell), femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

In addition, on the carrier in the LTE system or the 5G system, multiple cells can work at the same frequency at the same time, in some special In the scenario, the above carrier is also considered to be equivalent to the concept of a cell. For example, in a carrier aggregation (CA) scenario, when a secondary carrier is configured for a UE, the carrier index of the secondary carrier and the cell identifier (Cell ID) of the secondary cell working in the secondary carrier are simultaneously carried. In this case, the concept of the carrier and the cell can be considered to be equivalent, for example, the UE accessing one carrier and accessing one cell are equivalent.

The method and apparatus provided by the embodiments of the present invention may be applied to a terminal device or a network device, where the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. . The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as main memory). The operating system may be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as browsers, contacts, word processing software, and instant messaging software. In addition, the embodiment of the present invention does not specifically limit the specific structure of the execution body of the method provided by the embodiment of the present invention, as long as it can be provided according to the embodiment of the present invention by running a program for recording the code of the method provided by the embodiment of the present invention. The method can be communicated. For example, the execution body of the method provided by the embodiment of the present invention may be a terminal device or a network device, or a function module that can call a program and execute a program in the terminal device or the network device.

Furthermore, various aspects or features of embodiments of the invention may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, the computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), such as a compact disc (CD), a digital versatile disc (Digital Versatile Disc, DVD). Etc.), smart cards and flash memory devices (eg, Erasable Programmable Read-Only Memory (EPROM), cards, sticks or key drivers, etc.). Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, without limitation, a wireless channel and various other mediums capable of storing, containing, and/or carrying instructions and/or data.

1 is a schematic diagram of a wireless communication system in accordance with an embodiment of the present invention. As shown in FIG. 1, the communication system 100 includes a network device 102, which may include one antenna or multiple antennas such as

antennas

104, 106, 108, 110, 112, and 114. Additionally, network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include multiple components related to signal transmission and reception (eg, processor, modulator, multiplexer) , demodulator, demultiplexer or antenna, etc.).

Network device 102 can communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it will be appreciated that network device 102 can communicate with any number of terminal devices similar to terminal device 116 or terminal device 122.

Terminal devices

116 and 122 may be, for example, cellular telephones, smart phones, portable computers, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable for communicating over wireless communication system 100. device.

As shown in FIG. 1, terminal device 116 is in communication with

antennas

112 and 114, wherein

antennas

112 and 114 transmit information to terminal device 116 over a forward link (also referred to as downlink) 118 and through the reverse link (also Information referred to as uplink 120 receives information from terminal device 116. In addition, terminal device 122 is in communication with

antennas

104 and 106, wherein

antennas

104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.

For example, in a Frequency Division Duplex (FDD) system, for example, forward link 118 Different frequency bands may be used with reverse link 120, and forward link 124 may use a different frequency band than reverse link 126.

As another example, in a Time Division Duplex (TDD) system and a Full Duplex system, the forward link 118 and the reverse link 120 can use a common frequency band, a forward link 124, and a reverse link. Link 126 can use a common frequency band.

Each antenna (or set of antennas consisting of multiple antennas) and/or regions designed for communication is referred to as a sector of network device 102. For example, the antenna group can be designed to communicate with terminal devices in sectors of the network device 102 coverage area. The network device can transmit signals to all of the terminal devices in its corresponding sector through a single antenna or multiple antenna transmit diversity. In the course of network device 102 communicating with

terminal devices

116 and 122 via

forward links

118 and 124, respectively, the transmit antenna of network device 102 may also utilize beamforming to improve the signal to noise ratio of

forward links

118 and 124. Moreover, when the network device 102 utilizes beamforming to transmit signals to the randomly dispersed

terminal devices

116 and 122 in the associated coverage area, as compared to the manner in which the network device transmits signals to all of its terminal devices through single antenna or multi-antenna transmit diversity, Mobile devices in neighboring cells are subject to less interference.

At a given time, network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device. When transmitting data, the wireless communication transmitting device can encode the data for transmission. In particular, the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of data bits to be transmitted over the channel to the wireless communication receiving device. Such data bits may be included in a transport block (or multiple transport blocks) of data that may be segmented to produce multiple code blocks.

In addition, the communication system 100 can be a PLMN network or a D2D network or an M2M network or other network. FIG. 1 is only a simplified schematic diagram of an example, and other network devices may also be included in the network, which are not shown in FIG.

Hereinafter, the transmission object of the embodiment of the present invention will be described in detail.

Specifically, the transmission object in the embodiment of the present invention may be a reference signal (RS) or a pilot signal (Pilot Signal), which is provided by the transmitting device to the receiving device for channel estimation and channel detection. Or a known signal such as channel demodulation.

In the embodiment of the present invention, the reference signal may be applied to the physical layer, and does not carry data information from a higher layer.

In addition, in the embodiment of the present invention, the reference signal may be a reference signal for uplink transmission, that is, an uplink reference signal; and the reference signal may also be a reference signal for downlink transmission, that is, a downlink reference signal.

The uplink reference signal includes a Demodulation Reference Signal (DMRS) for uplink demodulation, a Sounding Reference Signal (SRS) for uplink channel measurement, and the like. The DMRS used for PUCCH demodulation is called PUCCH DMRS, and the DMRS used for PUSCH demodulation is called PUSCH DMRS.

The downlink reference signal includes a UE-specific reference signal (UE-specific Reference Signal, UE-RS, also called Demodulation Reference Signal, DMRS). The DMRS used for PDCCH demodulation is called PDCCH DMRS, and the DMRS used for PDSCH demodulation is called PDSCH DMRS.

For example, in the embodiment of the present invention, a channel (for example, a PUSCH) corresponding to a reference signal (for example, an uplink demodulation reference signal) may carry modulated data, so that the reference signal may be used for demodulation of the PUSCH. .

For another example, in the embodiment of the present invention, a channel (for example, a PDSCH) corresponding to a reference signal (for example, a downlink demodulation reference signal) may carry modulated data, so that the reference signal may be used for a solution for the PDSCH. Tune.

The specific method and process of the "data channel demodulation" in the embodiment of the present invention may be similar to the prior art. Here, in order to avoid redundancy, detailed description thereof is omitted.

For example, in the embodiment of the present invention, a channel (for example, a PUCCH) corresponding to a reference signal (for example, an uplink demodulation reference signal) may carry modulated uplink control information, and thus, the reference signal may be used for the PUCCH. Demodulation.

For example, in the embodiment of the present invention, a channel (for example, a PDCCH) corresponding to a reference signal (for example, a downlink demodulation reference signal) may carry modulated downlink control information, and thus, the reference signal may be used for the PDCCH. Demodulation.

The specific method and process of the "control channel demodulation" in the embodiment of the present invention may be similar to the prior art. Here, in order to avoid redundancy, detailed description thereof is omitted.

It should be understood that the functions of the reference signals of the embodiments of the present invention listed above are merely exemplary, and the present invention is not limited thereto. For example, in the embodiment of the present invention, the reference signal may also be used for, for example, channel measurement (or Said, channel state information measurement), phase compensation, automatic gain control AGC adjustment, time-frequency synchronization or radio resource management RRM measurement.

The resources for transmitting the reference signal are described in detail below.

Time domain

In the embodiment of the present invention, the resources used by the network device and the terminal device for transmitting information may be divided into multiple time units in the time domain.

Moreover, in the embodiment of the present invention, the plurality of time units may be continuous, or a preset interval may be provided between some adjacent time units, which is not specifically limited in the embodiment of the present invention.

In the embodiment of the present invention, the length of a time unit can be arbitrarily set, which is not specifically limited in the embodiment of the present invention.

For example, one time unit may include one or more subframes.

Alternatively, one time unit may include one or more time slots or minislots.

Alternatively, one time unit may include one or more symbols.

Alternatively, one time unit may include one or more Transmission Time Interval (TTI) or Short Transmission Time Interval (sTTI).

Alternatively, the length of one time unit is 1 ms.

Alternatively, the length of one time unit is less than 1 ms.

Among them, TTI is a commonly used parameter in current communication systems (for example, LTE systems), and refers to a scheduling unit that schedules data transmission in a wireless link. In the prior art, 1 TTI = 1 ms is generally considered. That is, one TTI is a subframe or the size of two slots, which is the basic unit of time governed by radio resource management (scheduling, etc.).

In communication networks, latency is a key performance indicator that also affects the user experience. With the development of communication protocols, the scheduling interval of the physical layer that has the most obvious impact on delay is getting smaller and smaller. In the original WCDMA, the scheduling interval is 10ms, and High-Speed Packet Access (HSPA) is used. The scheduling interval is shortened to 2ms, and the scheduling interval (ie, TTI) in Long Term Evolution (LTE) is shortened to 1ms.

The hourly service requirement causes the physical layer to introduce a shorter TTI frame structure to further shorten the scheduling interval and improve the user experience. For example, the TTI length in an LTE system can be shortened from 1 ms to 1 symbol (symbol) to 1 slot (including 7 symbols). The above mentioned symbols may be orthogonal frequency division multiplexing in an LTE system (Orthogonal The Frequency Division Multiplexing (OFDM) symbol or the Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbol may also be a symbol in other communication systems. For another example, the TTI length or scheduling interval in the 5G communication system is also less than 1 ms.

In the data transmission based on the TTI of 1 ms in the LTE system, the Round-Trip Time (RTT) of the data transmission is generally 8 ms. It is assumed that the processing time is proportionally reduced compared to the scheduling of an existing TTI of 1 ms in length, that is, the existing RTT delay is still followed. Then, in the data transmission based on the sTTI of 0.5 ms in length, the RTT of the data transmission is 4 ms, and the delay can be shortened by half relative to the data transmission based on the TTI of 1 ms in length, thereby improving the user experience.

A TTI having a length of less than 1 ms may be referred to as an sTTI. For example, in an LTE system, the length of the sTTI may be any one of 1 to 7 symbols, or the sTTI length may be a combination of at least 2 different lengths of 1 to 7 symbols, for example, 6 sTTIs in 1 ms. Each sTTI length may be 3 symbols, 2 symbols, 2 symbols, 2 symbols, 2 symbols, 3 symbols, or 6 sTTIs in 1 ms, and each sTTI length may be 2 symbols, respectively. 3 symbols, 2 symbols, 2 symbols, 2 symbols, 3 symbols, or 4 sTTIs in 1 ms, each sTTI length can be 3 symbols, 4 symbols, 3 symbols, 4 symbols Each sTTI length can also be a combination of other different lengths.

Moreover, the uplink sTTI length may be the same as the downlink sTTI length. For example, the uplink sTTI length and the downlink sTTI length are both symbols.

Alternatively, the uplink sTTI length may be longer than the downlink sTTI length. For example, the uplink sTTI length is 7 symbols, and the downlink sTTI length is 2 symbols.

Alternatively, the uplink sTTI length may be shorter than the downlink sTTI length, for example, the uplink sTTI length is 7 symbols, and the downlink sTTI length is 1 subframe.

It should be noted that, in order to ensure that the division of the sTTI does not cross the slot boundary, the length of the sTTI specifically included in the sTTI of 2 symbols may be 2 symbols or 3 symbols. For example, six sTTIs are included in 1 ms, and each sTTI length is 2 symbols, 2 symbols, 3 symbols, 2 symbols, 2 symbols, and 3 symbols.

A packet whose TTI length is less than 1 subframe or 1 ms is called a short TTI packet. Short TTI data transmission is in the frequency domain and can be continuously distributed or non-continuously distributed. It should be noted that, considering backward compatibility, there may be cases in which data transmission based on TTI with a length of 1 ms and data transmission based on sTTI may exist at the same time.

In the embodiment of the present invention, a TTI and an sTTI specified in the prior art (for example, an LTE system) (for example, a length of 1 ms or a length greater than 1 ms) and a scheduling interval in a 5G system (for example, a micro-length less than 1 ms) may be used. The time slot) is collectively referred to as a TTI, and in the embodiment of the present invention, the length of the TTI can be changed according to actual needs.

It should be understood that the structure of the time unit listed above is only an exemplary description, and the embodiment of the present invention is not particularly limited, and the structure of the time unit may be arbitrarily changed according to actual needs, for example, for an LTE system that does not support sTTI, One time unit can be one subframe (Subframe). For another example, for an LTE system supporting sTTI, one time unit may include one sTTI, or one time unit may include one slot (slot), and one time unit may include one or more ( For example, a positive integer number less than 7 or a positive integer number less than 6; one time unit may also be 1 subframe.

It should be noted that, in the embodiment of the present invention, the length of the time unit for information transmission (or the information transmission duration) may be 1 ms or less than 1 ms. Or, in combination with the above description, even for a next generation communication system (for example, a 5G communication system), the length for downlink transmission in the time unit may be 1 ms, It may be less than 1 ms. Similarly, the length for uplink transmission in the time unit may be 1 ms or less than 1 ms.

For ease of understanding and description, as an example and not limitation, in the following, a case where one time unit includes one sTTI and one sTTI includes two symbols or three symbols is taken as an example to describe the transmission process of the reference signal in the embodiment of the present invention. .

Moreover, in the embodiment of the present invention, the resources used by the network device and the terminal device to transmit information may be divided into multiple periods in the time domain, and each period includes one or more time units.

By way of example and not limitation, in an embodiment of the invention, one cycle may be, for example, 1 ms.

It should be noted that, for the convenience of description, in the embodiment of the present invention, six sTTIs are included in one period (for example, one subframe, or 1 ms), and each sTTI length is 2 symbols, 2 symbols, and 3 symbols, respectively. 2 symbols, 2 symbols, 3 symbols, and sTTI 0 to sTTI 5 are exemplified, for example, as shown in FIG. 3 or FIG. 4. The method in the embodiment of the present invention is not limited thereto.

By way of example and not limitation, in the embodiment of the present invention, a time domain position for indicating a reference signal (hereinafter, for ease of understanding and distinction, referred to as: reference signal #β) (hereinafter, for ease of understanding and distinction, Do: Time domain information of time domain resource #β-1) may include the following meanings.

Meaning 1

In the embodiment of the present invention, a time domain resource carrying a reference signal (hereinafter, for ease of understanding and distinction, recorded as: reference signal #β) (hereinafter, for ease of understanding and distinction, is recorded as: time domain resource #β- The position of 1) may refer to a time domain resource of the time domain resource #β-1 with respect to a bearer data signal (hereinafter, for ease of understanding and distinction, recorded as: data signal #β) (hereinafter, for ease of understanding and distinction, Remember: the relative position between time domain resources #β-2). Here, the reference signal #β may be a reference signal for demodulation of the data signal #β. Wherein, the relative position may be a position of a time unit carrying the reference signal #β with respect to a time unit carrying the data signal #β.

Also, in meaning 1, the position of the time domain resource #β-1 on the time unit carrying the reference signal #β may be preset (or fixed or configured). By way of example and not limitation, when the time domain resource #β-1 is 1 symbol, the time domain resource #β-1 may be the first symbol on the time unit of the bearer reference signal #β. That is, in the embodiment of the present invention, when the network device and the terminal device know the relative position between the time domain resource #β-1 and the time domain resource #β-2, the time domain resource #β- can be determined. 1 corresponds to the specific symbol.

By way of example and not limitation, there may be x time units (eg, sTTIs) that may be used to carry reference signal #β, or there may be x locations where time units carrying reference signal #β may occur, where x The time units may include a time unit before the time domain resource #β-2, may also include the time domain resource #β-2, and may also include a time unit after the time domain resource #β-2. For example, as an example and not a limitation, x=4, assuming that the data signal #β is carried on the nth sTTI (ie, the time domain resource #β-2 is the nth sTTI), then the four may be used for carrying The time unit of the reference signal #β (ie, the sTTI carrying the time domain resource #β-1) may be the n-2th sTTI, the n-1th sTTI, the nth sTTI, and the n+1th sTTI.

For example, as shown in FIG. 3, the data signal #β is carried in sTTI#4 (ie, the fifth sTTI in the transmission period), and the time unit for carrying the reference signal #β may be sTTI#2, sTTI#3. , sTTI#4 or sTTI#5.

For another example, if the data signal #β is carried in sTTI#1 (ie, the second sTTI in the transmission period), the time unit for carrying the reference signal #β may be sTTI#5 in the previous transmission period, or current. sTTI#0, sTTI#1 or sTTI#2 in the transmission cycle.

By way of example and not limitation, there may be x time units (eg, sTTIs) that may be used to carry reference signal #β, or there may be x locations where time units carrying reference signal #β may occur, where x Time The inter-cell may include a time unit before the time domain resource #β-2, and may also include the time domain resource #β-2, but does not include the time unit after the time domain resource #β-2. For example, by way of example and not limitation, x=3, assuming that the data signal #β is carried on the nth sTTI (ie, the time domain resource #β-2 is the nth sTTI), then the three may be used for carrying The time unit of the reference signal #β (ie, the sTTI carrying the time domain resource #β-1) may be the n-2th sTTI, the n-1th sTTI, and the nth sTTI.

For example, if the data signal #β is carried in sTTI#4 (ie, the 5th sTTI in the transmission period), the time unit for carrying the reference signal #β may be sTTI#2, sTTI#3, or sTTI#4.

For another example, if the data signal #β is carried in sTTI#1 (ie, the second sTTI in the transmission period), the time unit for carrying the reference signal #β may be sTTI#5 in the previous transmission period, or current. sTTI#0 or sTTI#1 in the transmission cycle.

As an example and not by way of limitation, there may be two time units (eg, sTTIs) that may be used to carry the reference signal #β, or that there may be two locations where the time unit carrying the reference signal #β may occur, and the 2 The time units include the time unit of the time domain resource #β-2 and the time domain resource #β-2, or the time unit including the time domain resource #β-2 and the time domain resource # -2-2. For example, assuming that the data signal #β is carried on the nth sTTI (ie, the time domain resource #β-2 is the nth sTTI), then the two time units that may be used to carry the reference signal #β (ie, The sTTI carrying the time domain resource #β-1 may be the n-1th sTTI and the nth sTTI.

For example, the data signal #β is carried in sTTI#4 (ie, the fifth sTTI in the transmission period), and the time unit for carrying the reference signal #β may be sTTI#3 or sTTI#4.

For another example, the data signal #β is carried in sTTI#0 (ie, the first sTTI in the transmission period), and the time unit for carrying the reference signal #β may be sTTI#5 in the previous transmission period, or current. sTTI#0 in the transmission cycle.

For another example, the data signal #β is carried in sTTI#4 (ie, the fifth sTTI in the transmission period), and the time unit for carrying the reference signal #β may be sTTI#4 or sTTI#5.

Meaning 2

In the embodiment of the present invention, the location of the time domain resource carrying the reference signal #β (ie, the time domain resource #β-1) may refer to the time domain of the time domain resource #β-1 relative to the bearer data signal #β. The relative position between resources (ie, time domain resource #β-2). Here, the reference signal #β may be a reference signal for demodulation of the data signal #β. Wherein, the relative position may be a position of a symbol carrying the reference signal #β with respect to a time unit carrying the data signal #β.

Also, in meaning 2, the position of the time domain resource #β-1 on the time unit carrying the reference signal #β may be variable. That is, in the embodiment of the present invention, when the network device and the terminal device know the relative position between the time domain resource #β-1 and the time domain resource #β-2, the time domain resource cannot be directly determined. The specific symbol corresponding to β-1, for example, the network device may transmit information indicating the symbol occupied by the time domain resource #β-1 in the time unit to the terminal device.

By way of example and not limitation, when the domain resource #β-1 is 1 symbol, there may be x symbols that may be used to carry the reference signal #β, or the symbol carrying the reference signal #β may appear at the position x. The time unit in which the x symbols are located may include a time unit before the time domain resource #β-2, may also include the time domain resource #β-2, and may also include the time after the time domain resource #β-2 unit. For example, as an example and not a limitation, x=6, assuming that the data signal #β is carried on the nth sTTI (ie, the time domain resource #β-2 is the nth sTTI), then the x may be used for carrying The symbol of the reference signal #β (ie, time domain resource #β-1) may be the last symbol on the n-2th sTTI, the first symbol or the last symbol on the n-1th sTTI, nth The first character on sTTI Number or last symbol, the first symbol on the n+1th sTTI.

For example, as shown in FIG. 4, the data signal #β is carried in sTTI#3 (ie, the fourth sTTI in the transmission period), and the symbol used to carry the reference signal #β may be the last symbol of sTTI#1, The first symbol or the last symbol of sTTI#2, the first symbol or the last symbol of sTTI#3, or the first symbol of sTTI#4.

For another example, the data signal #β is carried in sTTI#1 (ie, the second sTTI in the transmission period), and the symbol used to carry the reference signal #β may be the last symbol of sTTI#5 in the previous transmission period. Or the first symbol or the last symbol of sTTI#0 in the current transmission period, the first symbol or the last symbol of sTTI#1, or the first symbol of sTTI#2.

By way of example and not limitation, when the domain resource #β-1 is 1 symbol, there may be x symbols that may be used to carry the reference signal #β, or the symbol carrying the reference signal #β may appear at the position x. The time unit in which the x symbols are located may include a time unit before the time domain resource #β-2, and may also include the time domain resource #β-2, but does not include the time after the time domain resource #β-2 unit. For example, as an example and not a limitation, x=6, assuming that the data signal #β is carried on the nth sTTI (ie, the time domain resource #β-2 is the nth sTTI), then the x may be used for carrying The symbol of the reference signal #β (ie, time domain resource #β-1) may be the first symbol or the last symbol on the n-2th sTTI, the first symbol on the n-1th sTTI, or the last A symbol, the first symbol or the last symbol on the nth sTTI.

For example, if the data signal #β is carried in sTTI#3 (ie, the 4th sTTI in the transmission period), the symbol used to carry the reference signal #β may be the first symbol or the last symbol of sTTI#1, sTTI. The first symbol or the last symbol of #2, the first symbol or the last symbol of sTTI#3.

For another example, the data signal #β is carried in sTTI#1 (ie, the second sTTI in the transmission period), and the symbol used to carry the reference signal #β may be the first one of sTTI#5 in the previous transmission period. The symbol or the last symbol, or the first symbol or the last symbol of sTTI#0 in the current transmission period, or the first symbol or the last symbol of sTTI#1.

By way of example and not limitation, when the domain resource #β-1 is 1 symbol, there may be x symbols that may be used to carry the reference signal #β, or the symbol carrying the reference signal #β may appear at the position x. The time unit in which the x symbols are located includes the time unit of the time domain resource #β-2 and the time domain resource #β-2, or the time unit in which the x symbols are located includes the time domain resource #β -2 one time unit and time domain resource #β-2. For example, x=4, assuming that the data signal #β is carried on the nth sTTI (ie, the time domain resource #β-2 is the nth sTTI), then the x symbols that may be used to carry the reference signal #β (ie, time domain resource #β-1) may be the first symbol or the last symbol on the n-1th sTTI, the first symbol or the last symbol on the nth sTTI.

For example, if the data signal #β is carried in sTTI#3 (ie, the 4th sTTI in the transmission period), the symbol used to carry the reference signal #β may be the first symbol or the last symbol of sTTI#2, sTTI. The first symbol or the last symbol of #3.

For another example, the data signal #β is carried in sTTI#0 (ie, the first sTTI in the transmission period), and the symbol used to carry the reference signal #β may be the first one of sTTI#5 in the previous transmission period. The symbol or last symbol, or the first or last symbol of sTTI#0 in the current transmission cycle.

For another example, if the data signal #β is carried in sTTI#3 (ie, the fourth sTTI in the transmission period), the symbol used to carry the reference signal #β may be the first symbol or the last symbol of sTTI#3, The first symbol or the last symbol of sTTI#4.

Meaning 3

In the embodiment of the present invention, the location of the time domain resource carrying the reference signal #β (ie, the time domain resource #β-1) may refer to the time domain resource provided by the time domain resource #β-1 in the communication system (for example, The absolute position in each cycle). Here, the reference signal #β may be a reference signal for demodulation of the data signal #β.

By way of example and not limitation, when the time domain resource #β-1 is 1 symbol, there may be x symbols for carrying the reference signal #β in each cycle, and, by way of example and not limitation, for example, x= 4. The four symbols for carrying the reference signal #β may be the first symbol in each period (for example, symbol #0 in one subframe) and the fourth symbol (for example, in one subframe) Symbol #3), the eighth symbol (for example, symbol #7 in one subframe) and the eleventh symbol (for example, symbol #10 in one subframe). That is, the time domain resource #β-1 may be any one of symbol #0, symbol #3, symbol #7, and symbol #10.

Meaning 4

In the embodiment of the present invention, the location of the time domain resource #β-1 may refer to the location of the time domain resource #β-1 in a time unit. By way of example and not limitation, the location of the time domain resource #β-1 may refer to the location in the time domain resource #β-1 in an sTTI (hereinafter, for ease of understanding and differentiation, denoted as: sTTI#β).

For example, as shown in FIG. 5, when the time domain resource #β-1 is 1 symbol, and when sTTI#β includes 2 symbols, the position of the time domain resource #β-1 may include at least one of the following cases. Kind:

sTTI#β may not include time domain resource #β-1, or sTTI#β may not carry a reference signal, as an example and not a limitation. In this case, symbols on sTTI#β may be used to carry data signals. .

If sTTI#β includes time domain resource #β-1, or sTTI#β carries a reference signal, and sTTI#β includes time domain resource #β-2, or sTTI#β carries a data signal, then The time domain resource #β-1 may be located before the time domain resource #β-2 (or, the time domain resource #β-1 may be located in the first symbol in sTTI#β), or the time domain resource #β-1 may Located after time domain resource #β-2 (or, time domain resource #β-1 may be located in the last symbol in sTTI#β).

If sTTI#β includes time domain resource #β-1, or sTTI#β carries a reference signal, and sTTI#β does not include time domain resource #β-2, or sTTI#β does not carry a data signal, Then the time domain resource #β-1 may be located in the first symbol in sTTI#β, or the time domain resource #β-1 may be located in the last symbol in sTTI#β.

For another example, as shown in FIG. 5, when the domain resource #β-1 is 1 symbol, and when sTTI#β includes 3 symbols, the location of the time domain resource #β-1 may include at least at least One:

If sTTI#β includes time domain resource #β-1, or sTTI#β carries a reference signal, and sTTI#β includes time domain resource #β-2, or sTTI#β carries a data signal, then The time domain resource #β-1 may be located before the time domain resource #β-2 (or, the time domain resource #β-1 may be located in the first symbol in sTTI#β), or the time domain resource #β-1 may After the time domain resource #β-2 (or, the time domain resource #β-1 may be located in the last symbol in sTTI#β), or the time domain resource #β-1 may be located in two time domain resources #β- Between 2 (or, time domain resource #β-1 may be located in the middle of the symbol in sTTI#β).

If sTTI#β includes time domain resource #β-1, or sTTI#β carries a reference signal, and sTTI#β does not include time domain resource #β-2, or sTTI#β does not carry a data signal, Then the time domain resource #β-1 may be located in the first symbol in sTTI#β, or the time domain resource #β-1 may be located in the last symbol in sTTI#β, or the time domain resource #β-1 may A symbol located in the middle of sTTI#β.

It should be noted that the reference signal can carry all the symbols in one time unit, or the reference signal It is also possible to carry a partial symbol in one time unit, and the present invention is not particularly limited.

In addition, for any two time units carrying reference signals, the positions of the symbols carrying the reference signals may be the same or different, and the present invention is not particularly limited.

2. Frequency domain

In the embodiment of the present invention, the resources used by the network device and the terminal device to transmit information may be divided into multiple frequency domain units in the frequency domain.

Moreover, in the embodiment of the present invention, the multiple frequency domain units may be continuous, or may be preset intervals between some adjacent frequency domain units, which are not specifically limited in the embodiment of the present invention.

In the embodiment of the present invention, the size of a frequency domain unit may be arbitrarily set, which is not specifically limited in the embodiment of the present invention. For example, one frequency domain unit may include one or more resource blocks, where one resource block includes 12 subcarriers. .

It should be noted that, in the embodiment of the present invention, the communication system or the communication protocol may specify a frequency domain pattern that can be used by multiple reference signals, or the communication system or the communication protocol may specify multiple types between the network device and the terminal device. The frequency domain location of the reference signal transmission on the frequency domain unit of the information transmission.

By way of example and not limitation, the frequency domain pattern of the reference signal includes a frequency domain pattern when resources are used in a frequency division multiplexing manner and a frequency domain pattern when resources are used in a non-frequency division multiplexing manner. For example, when the frequency domain resource provided by the system for transmitting the reference signal is used in the frequency division multiplexing manner, the frequency domain resource of the communication system may be divided into multiple patterns, wherein any two of the multiple patterns are included. The frequency domain resources are different. The frequency domain pattern when the resource is used in the frequency division multiplexing manner includes an Interleaved Frequency Division Multiple Access (IFDMA) pattern, which is also called a Comb pattern.

6 shows an example of the IFDMA multiplexing mode of the frequency domain pattern of the reference signal. As shown in FIG. 6, the reference signal adopting the IFDMA multiplexing method includes two patterns, and each terminal device in the communication system adopts IFDMA multiplexing. When the frequency domain resource is used to transmit the reference signal, the frequency domain unit corresponding to the pattern 1 can be allocated to one terminal device, and the frequency domain unit corresponding to the pattern 2 can be allocated to another terminal device, thereby enabling the two terminal devices to be implemented. In the same time period, the reference signals are transmitted using different frequency domain resources, thereby ensuring the orthogonality of the reference signals of the respective terminal devices.

By way of example and not limitation, when the terminal device is configured to use pattern 1 or pattern 2 in the IFDMA multiplexing mode, the terminal device transmits the reference signal on the frequency domain unit corresponding to the pattern 1 or pattern 2 within the bandwidth of the scheduled transmission.

As an example and not by way of limitation, when the unit of the frequency domain unit in FIG. 6 is a subcarrier, and the number of the subcarrier is counted from 0, it can be considered that the pattern 1 in FIG. 6 is a pattern corresponding to the even subcarrier, the pattern 2 is a pattern corresponding to odd subcarriers.

It should be understood that the manner of dividing the frequency domain resources enumerated above is only an exemplary description, and the present invention is not limited thereto. For example, in the embodiment of the present invention, the frequency domain resources may be further divided into two or more types (for example, four types). )pattern.

FIG. 7 shows another example of a pattern into which a frequency domain resource for carrying a reference signal is divided. As shown in FIG. 7, each terminal device in the communication system uses a frequency domain resource transmission reference using frequency division multiplexing. When the signal is used, the frequency domain unit corresponding to the pattern 1' may be assigned to one terminal device, the frequency domain unit corresponding to the pattern 2' may be allocated to another terminal device, and the frequency domain unit corresponding to the pattern 3' may be assigned to another terminal device. The terminal device, the frequency domain unit corresponding to the pattern 4', can be assigned to another terminal device. Therefore, it is possible to implement four types of terminal devices to transmit reference signals using different frequency domain resources in the same time period, thereby ensuring accuracy and reliability of transmission of reference signals of the respective terminal devices.

Also, by way of example and not limitation, in the embodiment of the present invention, a terminal device transmits a reference signal Only one pattern can be used in the process.

Alternatively, in the embodiment of the present invention, one terminal device may use a plurality of (at least two) patterns in one reference signal transmission process. For example, different patterns can be used between different layers of the same reference signal (or different sub-signals). For example, it is assumed that one reference signal includes four layers of sub-signals, wherein the sub-carriers of the 0-layer or 1-layer sub-signals are different from the sub-carriers used in the 2-layer or 3-layer sub-signals.

When the frequency domain resources provided by the system for transmitting reference signals are used in the non-frequency division multiplexing manner, the frequency domain resources of the communication system include only one pattern. The reference signal pattern in the non-frequency division multiplexing mode may occupy all frequency domain units in the communication system, or the reference signal pattern in the non-frequency division multiplexing mode may occupy part of the frequency domain in the communication system. unit.

8 is a diagram showing an example of a non-frequency division multiplexing method in which a frequency domain pattern of a reference signal is used. As shown in FIG. 8, when a terminal device in a communication system transmits a reference signal by using a frequency domain resource in a non-frequency division multiplexing manner, The terminal device transmits the reference signal on all frequency domain units within the bandwidth being scheduled for transmission.

By way of example and not limitation, when the unit of the frequency domain unit in FIG. 8 is a subcarrier, it can be considered that the terminal device can transmit the reference signal on all subcarriers within the bandwidth of the scheduled transmission.

It should be noted that when the terminal device uses the same reference signal pattern to transmit multiple reference signal sequences to support spatial division multiplexing transmission of data, or multiple terminal devices use the same reference signal pattern to transmit respective reference signal sequences, Differentiating between different reference signal sequences, Code Division Multiplexing (CDM) can be used to ensure orthogonality between different reference signal sequences. By way of example and not limitation, when each terminal device in the communication system transmits a reference signal by using a frequency domain resource in a code division multiplexing manner, a plurality of terminal devices in the communication system may transmit a reference signal by using a frequency domain resource corresponding to the same pattern. That is, the frequency domain resources used in the communication system for transmitting reference signals (eg, each frequency domain unit included in the communication system) may be divided into the same pattern, wherein the pattern may include all or part of the frequency domain unit in the communication system. The present invention is not particularly limited.

By way of example and not limitation, when each terminal device in a communication system transmits a reference signal by using a frequency domain resource in a CDM manner, a frequency domain resource for transmitting a reference signal in a communication system (for example, each frequency domain unit included in the communication system) Can be divided into the same pattern, which may include all frequency domain units within the bandwidth of the communication system scheduled for terminal device data transmission, such that different terminal devices may use different code domain resources (eg, reference signals) The cyclic shift of the sequence), multiplexing the frequency domain resources corresponding to the pattern, and transmitting the reference signal. Therefore, the two terminal devices can use the same frequency domain resource in the same time period to transmit the reference signal based on different code domain resources, thereby ensuring the accuracy and reliability of the transmission of the reference signal of each terminal device.

By way of example and not limitation, when each terminal device in a communication system transmits a reference signal by using a frequency domain resource in a CDM manner, a frequency domain resource for transmitting a reference signal in a communication system (for example, each frequency domain unit included in the communication system) Some frequency domain units within the bandwidth of the communication system scheduled for terminal device data transmission, such as pattern 1 or pattern 2 in FIG. 6, may be included, such that different terminal devices may employ different code domain resources (eg, The cyclic shift of the sequence of reference signals), multiplexing the frequency domain resources corresponding to the pattern, and transmitting the reference signal. Therefore, the two terminal devices can use the same frequency domain resource in the same time period to transmit the reference signal based on different code domain resources, thereby ensuring the accuracy and reliability of the transmission of the reference signal of each terminal device.

Hereinafter, for ease of understanding and explanation, a pattern (or a reference signal) of a non-frequency division multiplexing method (for example, multiplexing between multiple terminals or multi-layer space division multiplexing of the same reference signal resource using only the CDM method) is adopted. The pattern) is called "pattern 3".

In addition, the "pattern" described above is only one type of distinguishing the frequency domain position of the resource, and the present invention is not particularly Further, other descriptions of the frequency domain locations capable of distinguishing resources fall within the scope of the present invention. For example, "patterns" may also be referred to as "structures" and the like.

By way of example and not limitation, in the embodiment of the present invention, one terminal device may use all frequency domain units in a frequency domain unit included in one pattern; or, one terminal device may use a frequency domain unit included in one pattern. The partial frequency domain unit is not particularly limited in the present invention. Moreover, in an embodiment of the present invention, in a pattern corresponding to one symbol, a frequency domain unit included in one pattern on the symbol may be all allocated to one terminal device; or a frequency domain unit included in a pattern on the symbol It can be assigned to a plurality of terminal devices, and the frequency domain units in the pattern used by each terminal device are different, and the present invention is not particularly limited.

Hereinafter, a method and a process for transmitting a reference signal according to an embodiment of the present invention will be described in detail with reference to FIG.

In the embodiment of the present invention, the network device may transmit a reference signal with one or more terminal devices, and the network device is similar to the process for each terminal device to transmit the reference signal. For ease of understanding, the following is a network device and a terminal. The reference signal transmission process between the device #A (that is, an example of the first terminal device) is taken as an example for explanation.

Moreover, in the embodiment of the present invention, one or more reference signals for one or more data signals may be transmitted between the network device and the terminal device #A, and the transmission process of each reference signal is similar, for ease of understanding, Hereinafter, a process of transmitting a reference signal for data signal #A (hereinafter, referred to as reference signal #A for ease of understanding and explanation) between the network device and the terminal device #A will be described as an example.

As shown in FIG. 2, when the terminal device #A needs to transmit the data signal #A to the network device (for example, the data signal #A may be a signal carrying data or control information), the terminal device #A needs to be sent for the pair. The data signal #A performs a demodulated reference signal #A (i.e., an example of the first reference signal), that is, the reference signal #A may be an uplink reference signal.

At S210, the terminal device #A may determine a resource for carrying the reference signal #A (ie, an example of the first resource, hereinafter, referred to as resource #A for ease of understanding and explanation).

In the embodiment of the present invention, the resource #A may include resources in the time domain and resources in the frequency domain, and therefore, the terminal device #A may determine information indicating the location of the resource #A in the time domain (ie, An example of time domain information of the first resource, hereinafter, for ease of understanding and distinction, information: information #1) and information indicating the location of the resource #A in the frequency domain (ie, the frequency of the first resource) An example of the domain information is hereinafter referred to as information #2) for easy understanding and distinction, and the resource #A is determined based on the information #1 and the information #2.

It should be noted that, in the embodiment of the present invention, the information #1 and the information #2 may have a mapping relationship #A (ie, an example of the first mapping relationship), or the resource #A is in the time domain. The location and location of the resource #A in the frequency domain may have a mapping relationship #A.

By way of example and not limitation, in the embodiment of the present invention, the terminal device can synchronize the determination information #2 based on the mapping relationship #A when determining the information #1. Alternatively, the terminal device can synchronously determine the location of the resource #A in the frequency domain based on the mapping relationship #A when determining the location of the resource #A in the time domain.

By way of example and not limitation, in the embodiment of the present invention, the terminal device can synchronize the determination information #1 based on the mapping relationship #A when determining the information #2. Alternatively, the terminal device can synchronously determine the location of the resource #A in the time domain based on the mapping relationship #A when determining the location of the resource #A in the frequency domain.

By way of example and not limitation, in the embodiment of the present invention, the terminal device #A may determine the information #1 and the information #2 based on the mapping relationship #A in the following manner.

Mode 1

In the embodiment of the present invention, the mapping relationship #A may mean that the information #2 is based on a function with the information #1 as a variable. Or the formula (below, for ease of understanding and explanation, note: function #A).

In this case, the function #A (ie, mapping relationship #A) can be saved in the network device and the terminal device #A.

By way of example and not limitation, in the embodiment of the present invention, the information of the function #A may be specified by a communication system or a communication protocol, or the function #A may also be determined by the network device and sent to the terminal device #A. Alternatively, the function #A may also be set by the user, the operator, or the manufacturer in the network device and the terminal device #A, and the present invention is not particularly limited as long as the functions stored in the network device and the terminal device #A are ensured. The information of #A corresponds to (for example, the same).

In this case, in the embodiment of the present invention, the network device may transmit the information #1 (ie, an example of the second indication information) to the terminal device #A.

Situation 1

By way of example and not limitation, for example, when the meaning of the location of the time domain resource carrying a reference signal is the above meaning 1 or meaning 2, in the embodiment of the present invention, by including, for example, 1 or more (for example) , two) bits of information (that is, an example of information #1, hereinafter, for ease of understanding and explanation, denoted as: information #1-1) to indicate x time units in the transmission period of the reference signal #A The relative position of the time unit for carrying the reference signal #A with respect to the time unit for carrying the data signal #A, or the offset.

For example, as shown in FIG. 3, if the data signal is carried in the nth sTTI (for example, sTTI#4) in the transmission period, then:

When the time unit for carrying the reference signal #A is the n-2th sTTI (for example, sTTI#2) in the transmission period, the indication information for the time unit carrying the reference signal #A (for example, the information # 1-1, that is, an example of the second information) may be, for example, 10.

It should be understood that the specific value (or state) of the above-listed indication information is merely an exemplary description, and the present invention is not particularly limited, and the value of the indication information may be changed as needed, for example, when used for carrying a reference signal. When the time unit of #A is the n-2th sTTI in the transmission period, the value of the information #1-1 may also be any two-bit binary value. Hereinafter, in order to avoid redundancy, the same or similar cases are omitted. Description.

When the time unit for carrying the reference signal #A is the n-1th sTTI (for example, sTTI#3) in the transmission period, the indication information of the time unit for carrying the reference signal #A (for example, the information # 1-1, that is, an example of the second information) may be, for example, 01.

When the time unit for carrying the reference signal #A is the nth sTTI (for example, sTTI#4) within the transmission period, the indication information for the time unit carrying the reference signal #A (for example, the information #1- 1, that is, an example of the second information) may be, for example, 00.

When the time unit for carrying the reference signal #A is the n+1th sTTI (for example, sTTI#5) in the transmission period, the indication information of the time unit for carrying the reference signal #A (for example, the information # 1-1, that is, an example of the second information) may be, for example, 11.

Thus, the terminal device #A can determine the time unit corresponding to the resource #A (ie, the time unit for carrying the reference signal #A) with respect to the time unit for carrying the data signal #A based on the information #1-1. The offset, and in turn, the terminal device #A can determine the time unit for carrying the reference signal #A based on the offset and the time unit for carrying the data signal #A.

In this case, in the embodiment of the present invention, the mapping relationship #A may include the following meaning: the time units of the bearer reference signal #A are different from the different offsets of the time unit carrying the data signal #A. Frequency domain resource usage (for example, CDM mode or IFDMA mode), and different offsets correspond to each Different patterns.

Table 1 below shows an example of the mapping relationship #A.

Table 1

As an example and not a limitation, as shown in Table 1:

Situation 1-1

When the offset between the time unit carrying the reference signal #A and the time unit carrying the data signal #A is 0 (ie, the reference signal #A and the data signal #A are carried in the same time unit):

For example, the network device and the terminal device #A may determine that the frequency domain resource usage mode of the resource #A is CDM according to the mapping relationship #A.

Alternatively, the network device and the terminal device #A may determine, according to the mapping relationship #A, the frequency domain resource usage mode of the resource #A (that is, an example of the information #2) is the IFDMA mode, and the pattern corresponding to the resource #A is the pattern 1 Or, the frequency domain unit used by the resource #A (ie, another example of the information #2) belongs to the frequency domain unit included in the pattern 1. For example, the frequency domain unit used by the resource #A may be the frequency domain unit included in the pattern 1. Part or all of the resource, or resource #A, is a resource corresponding to the pattern 1 in the frequency domain bandwidth allocated by the network device to the terminal device for transmitting the reference signal.

Situation 1-2

The offset between the time unit carrying the reference signal #A and the time unit carrying the data signal #A is -1 (ie, the time domain unit carrying the reference signal #A is the unit between the bearer data signal #A) When the first time unit):

Alternatively, the network device and the terminal device #A may determine, according to the mapping relationship #A, the frequency domain resource usage mode of the resource #A (that is, an example of the information #2) is the IFDMA mode, and the pattern corresponding to the resource #A is the pattern 2 Or, the frequency domain unit used by the resource #A (ie, another example of the information #2) belongs to the frequency domain unit included in the pattern 2, for example, the frequency domain unit used by the resource #A may be the frequency domain unit included in the pattern 2. Part or all of the resource, or resource #A, is a resource corresponding to the pattern 2 within a frequency domain bandwidth of the network device for transmitting the reference signal.

Situation 1-3

The offset between the time unit carrying the reference signal #A and the time unit carrying the data signal #A is -2 (ie, the time domain unit carrying the reference signal #A is the unit between the bearer data signal #A) The first 2 time units) Time:

Situation 1-4

When the offset between the time unit carrying the reference signal #A and the time unit carrying the data signal #A is 1 (ie, the time domain unit carrying the reference signal #A is the unit between the data signal #A) 1 time unit):

For example, the network device and the terminal device #A can determine the frequency domain resource usage mode (that is, an example of the information #2) of the resource #A as the CDM method based on the mapping relationship #A.

It should be understood that the above-exemplified pattern 1 or pattern 2 is merely illustrative, and the present invention is not particularly limited. For example, the pattern 1 and the pattern 2 can be swapped as needed. When the offset is 0, the pattern in the IFDMA mode is configured as the pattern 2, and when the offset is not 0, the pattern in the IFDMA mode is configured as a pattern. 1. For another example, when there are more than two types of patterns in the IFDMA mode, such as four types, the pattern 1 or the pattern 2 listed above may also be replaced with the pattern 1', the pattern 2', the pattern 3', and the pattern 4'. Any one. Hereinafter, the description of the same or similar cases will be omitted in order to avoid redundancy.

It should be noted that, as described above, each possible case of the information #1-1 can determine the usage manner of the two frequency domain resources (for example, the CDM mode and the IFDMA mode). The network device may further send, to the terminal device, information indicating a frequency domain usage mode of the resource #A (ie, an example of the first indication information), so that the terminal device #A can uniquely determine the first indication information according to the first indication information. The frequency domain usage of resource #A. Further, when the frequency domain usage mode of the resource #A is the IFDMA mode, the terminal device #A can uniquely determine the pattern corresponding to the resource #A based on the information #1-1.

In addition, in meaning 1, the position of the symbol carrying the reference signal in the time unit is preset (for example, the position of the symbol carrying the reference signal in the time unit is the first symbol in the time unit), therefore, the terminal After the device #A knows the time unit carrying the reference signal #A, it can directly determine the symbol carrying the reference signal #A.

In addition, in the meaning 2, the position of the symbol carrying the reference signal in the time unit is variable. In this case, for example, in the embodiment of the present invention, the time domain information may also be used to indicate the reference signal for carrying the reference # The position of the symbol used to carry the reference signal #A in the time unit of A.

In this case, for example, in the embodiment of the present invention, the position of the symbol for carrying the reference signal #A in the time unit for carrying the reference signal #A may be the position of the time unit for carrying the reference signal #A. (for example, the time unit for carrying the reference signal #A has an offset with respect to the time unit for carrying the data signal #A) Mapping relationship (hereinafter, for ease of understanding and explanation, note: mapping relationship #B).

In the embodiment of the present invention, the mapping relationship #B may mean that the position of the symbol for carrying the reference signal #A and the position of the time unit for carrying the reference signal #A are based on for carrying the reference signal #A. The position of the time unit is determined by the function or formula of the variable.

As an example and not limitation, Table 2 shows an example of the mapping relationship #B.

Table 2

Alternatively, for example, the information #1-1 may be used to indicate the position of the symbol for carrying the reference signal #A in the time unit for carrying the reference signal #A, in addition to indicating the above offset. (ie, another example of time domain information). Table 3 below shows another example of the mapping relationship #A.

table 3

As an example and not a limitation, as shown in Table 3:

Situation 1-1’

When the symbol carrying the reference signal #A is the first symbol on the time unit carrying the data signal #A (ie, the reference signal #A and the data signal #A are carried in the same time unit):

Situation 1-2’

When the symbol carrying the reference signal #A is the last symbol on the time unit carrying the data signal #A (ie, the reference signal #A and the data signal #A are carried in the same time unit):

Situation 1-3’

When the symbol carrying the reference signal #A is the first symbol on the time unit with an offset of -1 from the time unit carrying the data signal #A (ie, the time domain unit carrying the reference signal #A is the bearer) When the first 1 time unit of the unit between data signals #A):

Situation 1-4’

When the symbol carrying the reference signal #A is the last symbol on the time unit with an offset of -1 from the time unit carrying the data signal #A (ie, the time domain unit carrying the reference signal #A is the bearer data) When the first time unit of the unit between signals #A):

Situation 1-5’

When the symbol carrying the reference signal #A is the first symbol on the time unit with an offset of -2 from the time unit carrying the data signal #A (ie, the time domain unit carrying the reference signal #A is the bearer) When the first 2 time units of the unit between data signals #A):

Alternatively, the network device and the terminal device #A may determine, according to the mapping relationship #A, the frequency domain resource usage mode of the resource #A (that is, an example of the information #2) is the IFDMA mode, and the pattern corresponding to the resource #A is the pattern 2 ,Or, The frequency domain unit used by the resource #A (ie, another example of the information #2) belongs to the frequency domain unit included in the pattern 2, for example, the frequency domain unit used by the resource #A may be a part of the frequency domain unit included in the pattern 2 or All, or in other words, the resource #A is a resource corresponding to the pattern 2 within the frequency domain bandwidth of the network device for transmitting the reference signal.

Situation 1-6’

When the symbol carrying the reference signal #A is the last symbol on the time unit with an offset of -2 from the time unit carrying the data signal #A (ie, the time domain unit carrying the reference signal #A is the bearer data) When the first 2 time units of the unit between signals #A):

Situation 2

By way of example and not limitation, for example, when the meaning of the location of the time domain resource carrying a reference signal is the above meaning 3, in the embodiment of the present invention, it may include, for example, one or more (for example, two The bit information (that is, an example of the information #1, hereinafter, for ease of understanding and explanation, is written as: information #1-2) to indicate that the x time units in the transmission period of the reference signal #A are used for bearer The time unit of reference signal #A.

For example, when the time unit for carrying the reference signal #A is the first sTTI (ie, sTTI 0) in the transmission period, the indication information for the time unit carrying the reference signal #A (for example, the information #1- 2, that is, an example of the second information) may be, for example, 00.

When the time unit for carrying the reference signal #A is the second sTTI (ie, sTTI 1) in the transmission period, the indication information for the time unit carrying the reference signal #A (for example, the information #1-2, That is, an example of the second information may be, for example, 01.

When the time unit for carrying the reference signal #A is the fourth sTTI (ie, sTTI 3) in the transmission period, the indication information for the time unit carrying the reference signal #A (for example, the information #1-2, That is, an example of the second information may be, for example, 10.

When the time unit for carrying the reference signal #A is the 5th sTTI (ie, sTTI 4) in the transmission period, the indication information of the time unit for carrying the reference signal #A (for example, the information #1-2, That is, an example of the second information may be, for example, 11.

Thereby, the terminal device #A can determine the position of the time unit corresponding to the resource #A (ie, the time unit for carrying the reference signal #A) within the transmission period of the reference signal #A based on the information #1-2. (or, absolute position), and further, the terminal device #A can determine the time unit for carrying the reference signal #A based on the information #1-2.

In this case, in the embodiment of the present invention, the mapping relationship #A may include the following meaning: the bearer reference signal #A time unit corresponds to different frequency domain resource usage manners at different positions in the period (for example, the CDM method) Or IFDMA mode), and the time units carrying the reference signal #A correspond to different patterns at different positions in the cycle.

Table 4 below shows an example of the mapping relationship #A.

Table 4

As an example and not a limitation, as shown in Table 4:

Case 2-1

When the time unit carrying the reference signal #A is the first time unit within the transmission period of the reference signal #A:

Case 2-2

When the time unit of the reference signal #A is carried, the second time unit in the transmission period of the reference signal #A is referred to:

Situation 2-3

When carrying the time unit of the reference signal #A, the fourth time unit within the transmission period of the reference signal #A:

Situation 2-4

When carrying the time unit of the reference signal #A, the fifth time unit within the transmission period of the reference signal #A:

For example, the network device and the terminal device #A can determine the frequency domain resource of the resource #A according to the mapping relationship #A. The usage method (that is, an example of information #2) is the CDM method.

It should be noted that, as described above, each possible case of the information #1-2 can determine the usage manner of the two frequency domain resources (for example, the CDM mode and the IFDMA mode). The network device may further send, to the terminal device, information indicating a frequency domain usage mode of the resource #A (ie, an example of the first indication information), so that the terminal device #A can uniquely determine the first indication information according to the first indication information. The frequency domain usage of resource #A. Further, when the frequency domain usage mode of the resource #A is the IFDMA mode, the terminal device #A can uniquely determine the pattern corresponding to the resource #A based on the information #1-2.

It should be understood that the specific content of the time domain information indicated in the above is only an exemplary description, and the present invention is not limited thereto. For example, in the embodiment of the present invention, the time domain information may be used to indicate that the reference signal is used to carry the reference signal #A. The position of the symbol for carrying the reference signal #A in the time unit, or the time domain information is used to indicate the time unit for carrying the reference signal #A in the time unit for carrying the reference signal #A, A position indicating a symbol for carrying the reference signal #A in the time unit for carrying the reference signal #A.

In this case, for example, in the embodiment of the present invention, the position of the symbol for carrying the reference signal #A in the time unit for carrying the reference signal #A may be the position of the time unit for carrying the reference signal #A. (For example, the time unit for carrying the reference signal #A has a mapping relationship with respect to the offset of the time unit for carrying the data signal #A) (hereinafter, for ease of understanding and explanation, it is noted that: mapping relationship #B) .

As an example and not limitation, Table 5 shows an example of the mapping relationship #B.

table 5

Alternatively, for example, the information #1-2 may be used to indicate the time unit for carrying the reference signal #A, in addition to indicating that the time unit for carrying the reference signal #A is in the period. Used to carry the parameters The position of the symbol of the test signal #A (ie, another example of the time domain information). Table 6 below shows another example of the mapping relationship #A.

Table 6

As an example and not a limitation, as shown in Table 6:

Situation 2-1’

When the reference signal is carried in the second symbol in the transmission cycle (for example, symbol 1):

Situation 2-2’

When the reference signal is carried in the fifth symbol in the transmission cycle (for example, symbol 4):

Situation 2-3’

When the reference signal is carried in the ninth symbol (eg, symbol 8) in the transmission cycle:

Alternatively, the network device and the terminal device #A may determine, according to the mapping relationship #A, the frequency domain resource usage mode of the resource #A (that is, an example of the information #2) is the IFDMA mode, and the pattern corresponding to the resource #A is the pattern 1 Or, the frequency domain unit used by the resource #A (ie, another example of the information #2) belongs to the frequency domain unit included in the pattern 1. For example, the frequency domain unit used by the resource #A may be the frequency domain unit included in the pattern 1. Part or all of the resource, or the resource #A It is a resource corresponding to the pattern 1 in a frequency domain bandwidth allocated by the network device to the terminal device for transmitting the reference signal.

Situation 2-4’

When the reference signal is carried in the twelfth symbol (eg, symbol 11) in the transmission period:

It should be understood that the position of the time unit in the period in which the reference signal is enumerated is only an exemplary description, and the present invention is not limited thereto, and the position of the time unit in which the reference signal is carried in the period can be arbitrarily changed according to actual needs. .

Situation 3

By way of example and not limitation, for example, when the meaning of the location of the time domain resource carrying a reference signal is the above meaning 4, in the embodiment of the present invention, it may include, for example, one or more (for example, two The bit information (i.e., an example of the information #1, hereinafter, for ease of understanding and explanation, is written as: information #1-3) to indicate the time unit for carrying the reference signal #A (hereinafter, for ease of understanding and distinction) , noted as: the symbol of the reference signal #A carried in time unit #A).

For example, as shown in FIG. 5, if time unit #A includes 2 symbols, then:

When the time unit #A does not carry the reference signal #A, and all the symbols in the time unit #A are used to carry the data signal #A, that is, when the data signal #A and the reference signal #A are in the time unit #A When the distribution mode is DD, the indication information of the time unit for carrying the reference signal #A (for example, the information #1-3, that is, an example of the second information) may be, for example, 00.

When the last symbol in the time unit #A carries the reference signal #A, and the first symbol in the time unit #A carries the data signal #A, that is, when the data signal #A and the reference signal #A are in the time unit # The distribution mode in A is: when DR, the indication information of the time unit for carrying the reference signal #A (for example, the information #1-3, that is, an example of the second information) may be, for example, 01.

When the first symbol in the time unit #A carries the reference signal #A, and the last symbol in the time unit #A carries the reference data #A, that is, when the data signal #A and the reference signal #A are in the time unit # When the distribution pattern in A is RD, the indication information of the time unit for carrying the reference signal #A (for example, the information #1-3, that is, an example of the second information) may be, for example, 10.

When the time unit #A does not carry the data signal #A, and the last symbol in the time unit #A carries the reference signal #A, that is, when the data signal #A and the reference signal #A are distributed in the time unit #A When: XR (X indicates that the symbol does not carry the data signal #A), the indication information for the time unit carrying the reference signal #A (for example, the information #1-3, that is, an example of the second information) may be: For example, 11.

For another example, as shown in FIG. 5, if time unit #A includes 3 symbols, then:

When the time unit #A does not carry the reference signal #A, and all the symbols in the time unit #A are used to carry the data signal #A, that is, when the data signal #A and the reference signal #A are in the time unit #A The distribution mode is: DDD, indication information of a time unit for carrying the reference signal #A (for example, the information #1-3, that is, an example of the second information) Can be: for example, 00.

When the last symbol in the time unit #A carries the reference signal #A, and the first two symbols in the time unit #A carry the data signal #A, that is, when the data signal #A and the reference signal #A are in the time unit # When the distribution pattern in A is DDR, the indication information of the time unit for carrying the reference signal #A (for example, the information #1-3, that is, an example of the second information) may be, for example, 01.

When the first symbol in the time unit #A carries the reference signal #A, and the last two symbols in the time unit #A carry the reference data #A, that is, when the data signal #A and the reference signal #A are in the time unit The distribution mode in #A is: in the case of RDD, the indication information of the time unit for carrying the reference signal #A (for example, the information #1-3, that is, an example of the second information) may be, for example, 10.

When the time unit #A does not carry the data signal #A, and the last symbol in the time unit #A carries the reference signal #A, that is, when the data signal #A and the reference signal #A are distributed in the time unit #A When: XXR (X indicates that the symbol does not carry the data signal #A), the indication information for the time unit carrying the reference signal #A (for example, the information #1-3, that is, an example of the second information) may be: 11.

Thus, the terminal device #A can determine the symbol for carrying the reference signal #A in the time unit #A corresponding to the resource #A based on the information #1-3.

In this case, in the embodiment of the present invention, the mapping relationship #A may include the following meanings: different positions of the symbols carrying the reference signal #A (or different distributions of the data signal and the reference signal in one time unit) The modes respectively correspond to different frequency domain resource usage modes (for example, CDM mode or IFDMA mode), and different positions of symbols carrying the reference signal #A respectively correspond to different patterns.

Table 7 below shows an example of the mapping relationship #A.

Table 7

	DD或DDDDD or DDD	DR或DDRDR or DDR	RD或RDDRD or RDD	XR或XXRXR or XXR	RX或RXXRX or RXX
图案3Pattern 3	否no	是Yes	是Yes	可选Optional	可选 Optional

图案1Pattern 1	否no	是Yes	是Yes	否no	否no
图案2 Pattern 2	否no	否no	否no	是Yes	是Yes

As an example and not a limitation, as shown in Table 7:

When a time unit (including the time unit #A) includes two or three symbols:

Case 3-1

If the data signal and the reference signal (or the symbol carrying the data signal and the symbol carrying the reference signal) are distributed in the time unit as DD or DDD, then:

For example, the network device and the terminal device #A may determine that the reference signal is not carried in the time unit, and does not need to determine the frequency domain information of the reference signal.

Case 3-2

If the time unit #A data signal #A and the reference signal #A (or the symbol carrying the data signal and the symbol carrying the reference signal) are distributed in the manner of DR or DDR, then:

For example, the network device and the terminal device #A may determine that the frequency domain resource usage mode in the resource #A (ie, the symbol in which the reference signal #A is carried in the time unit #A) is CDM according to the mapping relationship #A.

Alternatively, the network device and the terminal device #A may determine that the frequency domain resource usage mode in the resource #A (ie, the symbol in which the reference signal #A is carried in the time unit #A) is IFDMA according to the mapping relationship #A, and the resource# The pattern corresponding to A is pattern 1, or the frequency domain unit used by resource #A (ie, an example of information #2) belongs to the frequency domain unit included in pattern 1, for example, the frequency domain unit used by resource #A may be a pattern. 1 Part or all of the frequency domain units included.

Situation 3-3

If the time unit #A data signal #A and the reference signal #A (or the symbol carrying the data signal and the symbol carrying the reference signal) are distributed in the manner of RD or RDD, then:

Situation 3-4

If the time unit #A data signal #A and the reference signal #A (or the symbol carrying the data signal and the symbol carrying the reference signal) are distributed in the manner of XR or XXR, then:

Alternatively, the network device and the terminal device #A may determine that the frequency domain resource usage mode in the resource #A (ie, the symbol in which the reference signal #A is carried in the time unit #A) is IFDMA according to the mapping relationship #A, and the resource# The pattern corresponding to A is pattern 2, or the frequency domain unit used by resource #A (ie, an example of information #2) belongs to the frequency domain unit included in pattern 2, for example, the frequency domain unit used by resource #A may be a pattern. 2 Part or all of the frequency domain units included.

Situation 3-5

If the time unit #A data signal #A and the reference signal #A (or the symbol carrying the data signal and the symbol carrying the reference signal) are distributed in the manner of RX or RXX, then:

It should be noted that, as described above, each possible case of the information #1-3 can determine the usage manner of the two frequency domain resources (for example, the CDM mode and the IFDMA mode), for which, in the embodiment of the present invention, The network device may further send, to the terminal device, information indicating a frequency domain usage mode of the resource #A (ie, an example of the first indication information), so that the terminal device #A can uniquely determine the first indication information according to the first indication information. The frequency domain usage of resource #A. Moreover, when the frequency domain usage mode of the resource #A is the IFDMA mode, the terminal device #A can according to the information #1-3. The pattern corresponding to the resource #A is uniquely determined.

In summary, in the mode 1, the network device can transmit the above information #1 to the terminal device #A, whereby the terminal device can determine based on the information #1 and the mapping relationship #A (specifically, the function #A). Information #2, further, the terminal device #A can determine the time domain location and the frequency domain location of the resource #A, thereby completing the indication process of the resource #A.

Mode 2

In the embodiment of the present invention, N parameter sets #1 (ie, an example of the first parameter set) may be stored in the network device and the terminal device #A, wherein each of the N parameter sets is # 1 includes two (or more than two) parameters, one parameter corresponds to time domain information, and the other parameter corresponds to frequency domain information, wherein at least one different parameter exists between any two parameter sets #1 (for example, time Domain information or frequency domain information).

By way of example and not limitation, in the embodiment of the present invention, the N parameter sets #1 may be specified by a communication system or a communication protocol, or the N parameter sets #1 may also be determined by the network device and delivered to the terminal. The device #A, or the N parameter set #1 may also be set by the user, the operator, or the manufacturer in the network device and the terminal device #A, and the present invention is not particularly limited as long as the network device and the terminal are secured. The N parameter sets #1 stored in the device #A may correspond (for example, the same).

By way of example and not limitation, in the embodiment of the present invention, the N parameter sets #1 may be saved in the network device and the terminal device #A in the form of an entry. For example, the N parameter sets #1 may correspond to the entry. N rows, and each row includes two (or more than two) parameters, one of which corresponds to time domain information and the other of which corresponds to frequency domain information. For another example, the N parameter sets #1 may correspond to N columns in the table entry, and each column includes two (or more than two) parameters, where one parameter corresponds to time domain information and the other parameter corresponds to frequency domain information.

In this case, in the embodiment of the present invention, in the embodiment of the present invention, the mapping relationship #A may mean that the information #2 and the information #1 belong to the same parameter set #1 in the N parameter sets #1. In other words, the mapping relationship #A may mean that the information #2 and the information #1 are information corresponding to two parameters in the same row (or the same column) in the entry.

In this case, as an example and not by way of limitation, for example, when the meaning of the position of the time domain resource carrying one reference signal is the above meaning 1, the mapping relationship #A may be as shown in Table 8 below.

Table 8

标识(或者说，索引)Identification (or index)	时域信息Time domain information	频域信息Frequency domain information
000000	偏移量为0Offset is 0	图案3Pattern 3
001001	偏移量为0Offset is 0	图案1 Pattern 1
010010	偏移量为-1Offset is -1	图案3Pattern 3
011011	偏移量为-1Offset is -1	图案2 Pattern 2
100100	偏移量为-2Offset is -2	图案3Pattern 3
101101	偏移量为-2Offset is -2	图案2 Pattern 2
110110	偏移量为+1Offset is +1	图案3Pattern 3
111111	偏移量为+1Offset is +1	图案2 Pattern 2

Therefore, the network device can set the parameter #1 and the parameter #1 to which the information #1 belongs (hereinafter, in order to facilitate the column And distinguish, the identifier (or index) of the parameter set #1-A) is sent to the terminal device #A.

Further, the terminal device #A can determine the parameter set #1-A based on the received identifier, and use the parameter in the parameter set #1-A as the information #1 and the information #2, that is, the resource #A Time domain information and frequency domain information.

It should be noted that the specific content of the identifier of each parameter set #1 is only an exemplary description, and the present invention is not limited thereto. The number of bits and the bit value included in the identifier of each parameter set #1 can be arbitrarily determined, as long as Let an identifier uniquely indicate a parameter set #1.

For example, as described above, in the embodiment of the present invention, the network device may further send, to the terminal device, information indicating a frequency domain usage mode of the resource #A (that is, an example of the first indication information), and thus, the terminal device# A can uniquely determine the frequency domain usage mode of the resource #A according to the first indication information. In this case, the mapping relationship #A can be as shown in Table 9 below.

Table 9

For example, in the embodiment of the present invention, the time domain information may also be used to indicate the location of the symbol used to carry the reference signal #A in the time unit for carrying the reference signal #A.

In this case, for example, in the embodiment of the present invention, the position of the symbol for carrying the reference signal #A in the time unit for carrying the reference signal #A may be the position of the time unit for carrying the reference signal #A. (For example, the time unit for carrying the reference signal #A has a mapping relationship with respect to the offset of the time unit for carrying the data signal #A) (ie, the mapping relationship #B). In this case, the mapping relationship #B can be as shown in Table 10 below.

Table 10

Alternatively, for example, the time domain information may also be used to indicate the position of the symbol for carrying the reference signal #A in the time unit for carrying the reference signal #A, and another example of the mapping relationship #A is shown in Table 11 below. .

Table 11

标识Identification	偏移量Offset	符号位置Symbol position	频域信息Frequency domain information
000000	偏移量为0Offset is 0	第一个符号First symbol	图案3Pattern 3
001001	偏移量为0Offset is 0	第一个符号 First symbol		图案1Pattern 1
010010	偏移量为0Offset is 0	最后一个符号Last symbol	图案3Pattern 3
011011	偏移量为0Offset is 0	最后一个符号 Last symbol		图案1Pattern 1
100100	偏移量为-1Offset is -1	第一个符号 First symbol		图案2Pattern 2
101101	偏移量为-1Offset is -1	最后一个符号 Last symbol		图案2Pattern 2
110110	偏移量为-2Offset is -2	最后一个符号 Last symbol		图案2Pattern 2
111111	偏移量为+1Offset is +1	第一个符号 First symbol		图案2Pattern 2

For another example, when the meaning of the location of the time domain resource carrying a reference signal is the above meaning 3, the mapping relationship #A may be as shown in Table 12 below.

Table 12

标识Identification	时域信息Time domain information	频域信息Frequency domain information
000000	参考信号承载于周期内的第1个时间单元The reference signal is carried in the first time unit in the cycle	图案3Pattern 3
001001	参考信号承载于周期内的第2个时间单元The reference signal is carried in the second time unit within the period	图案3Pattern 3
010010	参考信号承载于周期内的第4个时间单元The reference signal is carried in the fourth time unit within the period	图案3Pattern 3
011011	参考信号承载于周期内的第5个时间单元The reference signal is carried in the 5th time unit within the period	图案3Pattern 3
100100	参考信号承载于周期内的第1个时间单元The reference signal is carried in the first time unit in the cycle		图案1Pattern 1
101101	参考信号承载于周期内的第2个时间单元The reference signal is carried in the second time unit within the period		图案2Pattern 2
110110	参考信号承载于周期内的第4个时间单元The reference signal is carried in the fourth time unit within the period		图案1Pattern 1
111111	参考信号承载于周期内的第5个时间单元The reference signal is carried in the 5th time unit within the period		图案2Pattern 2

Therefore, the network device can transmit the identifier (or index) of the parameter set #1 (hereinafter, in order to facilitate column and distinguish, the parameter set #1-A) to which the information #1 and the information #2 belong to Terminal device #A.

In the embodiment of the present invention, the position of the symbol for carrying the reference signal #A in the time unit for carrying the reference signal #A may be the position of the time unit for carrying the reference signal #A (for example, for carrying The time unit of the reference signal #A has a mapping relationship (i.e., mapping relationship #B) with respect to the offset of the time unit for carrying the data signal #A. For example, the mapping relationship #B can be as shown in Table 13 below.

Table 13

It should be understood that the specific content of the above-mentioned time domain information indication is only an exemplary description, and the present invention is not limited thereto. For example, in the embodiment of the present invention, the time domain information may also be used to indicate that the reference signal is used to carry the reference signal. The position of the symbol used to carry the reference signal #A in the time unit of A. For example, the mapping relationship #A can be as shown in Table 14 below.

Table 14

It should be understood that the specific location of the time unit in which the reference signal is enumerated in the above is only an exemplary description, and the present invention is not limited thereto. The position of the time unit in which the reference signal is carried in the period may be arbitrarily according to actual needs. change.

For another example, when the meaning of the location of the time domain resource carrying a reference signal is the above meaning 4, the mapping relationship #A may be as shown in Table 15 below.

Table 15

For example, as described above, in the embodiment of the present invention, the network device may further send, to the terminal device, information indicating a frequency domain usage mode of the resource #A (that is, an example of the first indication information), and thus, the terminal device# A can uniquely determine the frequency domain usage mode of the resource #A according to the first indication information. In this case, when the frequency domain usage mode of the resource #A is the IFDMA mode, the mapping relationship #A can be as shown in Table 16 below.

Table 16

It should be understood that the manner of determining the frequency domain resources of the reference signals enumerated above is merely exemplary, and the present invention is not particularly limited as long as the network device and the terminal device #A can be determined based on the same time domain information. The same may be used, or the network device and the terminal device #A can be made to have the same frequency domain information and time domain information determined based on the same index.

In summary, in mode 2, the network device may send the identifier of the parameter set (ie, parameter set #1-A) including the information #1 and the information #2 in the N parameter sets #1 to the terminal device #A. Therefore, the terminal device can use the time domain information in the parameter set #1-A as the information #1 and the frequency domain information in the parameter set #1-A as the information #2 based on the identifier of the parameter set #1-A, and further, The terminal device #A can determine the time domain location and the frequency domain location of the resource #A, thereby completing the indication process of the resource #A.

It can be understood that the performance of the first symbol and/or the last symbol of one subframe is affected because the radio frequency of the terminal device may be ramped up at the beginning and/or end of the subframe. By way of example and not limitation, in the embodiment of the present invention, the first symbol of one subframe and/or the last symbol of one subframe is not used as the time domain resource where the reference signal #A is located. That is, the terminal device #A determines the information #1 by the above-described manner, wherein the information #1 does not include the first symbol of one subframe and/or the last symbol of one subframe. By this method, it is possible to avoid transmitting the reference signal #A at the beginning and/or the end of the sub-frame, thereby ensuring the performance of the reference signal #A.

By way of example and not limitation, in the embodiment of the present invention, the data signal #A (ie, the data signal demodulated based on the reference signal #A) may be carried in X time units (ie, an example of the second time unit, X) ≥ 1, wherein, when X ≥ 2, the X time units are continuous). Therefore, the following situations may exist:

Case 1, the time unit carrying the reference signal #A (ie, time unit #A) belongs to the X time units

In this case, in the embodiment of the present invention, the reference signal #A is carried in the symbol #A, and the symbol with the largest number of symbols between the X time units and the symbol #A (for example, the X times) The first symbol in the unit, or the last symbol, is the symbol #B. In the embodiment of the present invention, when determining the symbol #A, the network device can make the symbol #A satisfy the following conditions:

The number of symbols of the interval between the symbol #A and the symbol #B is less than or equal to the threshold #A (that is, an example of the first threshold). As an example and not by way of limitation, the threshold #A may be an integer greater than or equal to two.

Case 2, the time unit carrying the reference signal #A (ie, time unit #A) does not belong to the X time units

In this regard, the following situations exist:

Case 2-A, the time unit #A is continuous with the X time units, for example, the symbol #A is adjacent to the first symbol or the last symbol of the X time units.

In this case, it is assumed that the symbol having the largest number of symbols between the X time units and the symbol #A (for example, the first symbol or the last symbol in the X time units) is the symbol #C, In the embodiment of the present invention, when determining the symbol #A, the network device may make the symbol #A satisfy the following conditions:

The number of symbols between the symbol #A and the symbol #C is less than or equal to the threshold #B (that is, an example of the second threshold). As an example and not by way of limitation, the threshold #B may be an integer greater than or equal to two.

Moreover, by way of example and not limitation, in the embodiment of the present invention, the threshold #B may be the same as the threshold #A.

Case 2-B, the symbol #A is non-contiguous with the X time units, for example, the symbol #A and the first time unit or the last time unit of the X time units each have at least one symbol, wherein The time unit #A and the X time units may be continuous or discontinuous, and are not limited herein.

In this case, in the embodiment of the present invention, the symbol with the smallest number of symbols between the X time units and the symbol #A is set (for example, the first symbol in the X time units, or the last symbol) As the symbol #D, in the embodiment of the present invention, when determining the symbol #A, the network device can make the symbol #A satisfy the following conditions:

The number of symbols of the interval between the symbol #A and the symbol #D is less than or equal to the threshold #C (that is, an example of the third threshold). As an example and not by way of limitation, the threshold #C may be an integer less than or equal to two.

Moreover, by way of example and not limitation, in the embodiment of the present invention, the threshold #C may be less than or equal to the threshold #A, or the threshold #C may be less than or equal to the threshold #B.

By way of example and not limitation, in the embodiment of the present invention, the time domain resource location available for carrying the reference signal #A may vary according to the change of the location of the time unit carried by the reference signal #A due to the influence of the threshold #C. .

The value of threshold #C is 2. For example, when the length of the previous sTTI of the time unit sTTI n of the bearer data signal #A indicated by the uplink grant is 3 symbols (for example, sTTI#0 or sTTI#3), it can be used to carry the time domain of the reference signal #A. There may be four resource locations, which are the first symbol of sTTI n , the last symbol of sTTI n , the first symbol of sTTI n-1, and the last symbol of sTTI n-1.

For another example, the length of the previous sTTI of the time unit sTTI n of the bearer data signal #A indicated by the uplink grant is 2 symbols (for example, any of sTTI#1, sTTI#2, sTTI#4, or sTTI#5) sTTI), there may be five time domain resource locations that can be used to carry reference signal #A, which are the first symbol of sTTI n , the last symbol of sTTI n , the first symbol of sTTI n-1, sTTI n The last symbol of -1, and the last symbol of sTTI n-2.

It can be understood that one terminal device is in the above case 2 and usually occurs when another terminal device is in case 1. Therefore, configuring the IFDMA pattern for the two terminal devices is more advantageous for its reference signal multiplexing.

By way of example and not limitation, in the embodiment of the present invention, the non-frequency division multiplexing mode (for example, the CDM mode) can be used to carry the time domain resource location of the reference signal #A and the frequency division multiplexing mode (for example, IFDMA mode). The time domain resource locations that can be used to carry reference signal #A can vary. Further optionally, the number of time domain resource locations available for carrying the reference signal #A in the non-frequency division multiplexing manner (for example, the CDM mode) may be greater than that in the frequency division multiplexing mode (for example, IFDMA mode). The number of time domain resource locations for reference signal #A.

By way of example and not limitation, in the embodiment of the present invention, the time domain resource location that can be used to carry the reference signal #A in the frequency division multiplexing mode (for example, IFDMA mode) may be a non-frequency division multiplexing manner (for example, CDM mode). The subset can be used to carry the time domain resource location of reference signal #A.

Table 17 below shows the case where the time domain resource positions that can be used to carry the reference signal #A are different in the non-frequency division multiplexing mode (for example, the CDM mode) and the frequency division multiplexing mode (for example, the IFDMA mode) in the mode 1. An example of mapping relationship #A.

Table 17

In the above Table 17, "-" indicates that the state is empty.

In addition, it should be understood that the foregoing

manners

1 and 2 can be used separately, or the foregoing

manners

1 and 2 can also be used in combination. For example, in the embodiment of the present invention, the network device can also send the resource #A to the terminal device. Time domain information (ie, information #1), whereby terminal device #A can determine a parameter set including the information #1 (ie, parameter set #1-A) from the N parameter sets #1, and further The terminal device may use the frequency domain parameter in the parameter set #1-A as the information #2.

In addition, in the embodiment of the present invention, if the time unit (ie, the time unit #A) carried by the reference signal #A is further used to carry a terminal device other than the terminal device #A (hereinafter, for ease of understanding and Distinguish, note: reference signal of terminal device #B) (for ease of understanding and distinction, note: reference signal #B), and if the reference signal #A and reference signal #B are carried in the time unit #A The same symbol (hereinafter, for ease of understanding and distinction, recorded as: symbol #1), when both the reference signal #A and the reference signal #B use the frequency domain resource using the IFDMA method, the network device can make the reference signal # The pattern used by A is different from the pattern used by reference signal #B. For example, the network device may instruct the terminal device #A to carry the reference signal #A on the odd subcarriers on the symbol #1 (an example of a pattern), and the network device may instruct the terminal device #B to carry the reference signal #B on the symbol # Even on 1 Counting subcarriers (another example of a pattern).

Thus, at S210, the terminal device #A can determine the time domain location and frequency of the resource #A based on an indication information (for example, time domain information of the resource #A or an index of the parameter set #1-A) transmitted by the network device. Domain location.

Furthermore, in the embodiment of the present invention, the network device may also send the sequence set used by the reference signal #A to the terminal device #A (that is, an example of the first sequence set, and the following is also distinguished for ease of understanding, and is recorded as: sequence Sequence information for collection #A).

In the embodiment of the present invention, the sequence set #A may include Q sequences, Q≥1, wherein the value of Q may be the maximum number of layers that can be supported based on the data that the reference signal #A can demodulate (or include The number of sub-reference signals is determined, for example, the value of Q may be the same as the maximum number of layers of data corresponding to the reference signal #A.

In the embodiment of the present invention, the “sequence information” may refer to: a specific sequence included in the sequence set; or “sequence information” may refer to a cyclic shift corresponding to the sequence included in the sequence set, which is not specifically limited in the present invention. As long as the terminal device can determine each sequence included in the sequence set allocated by the network device based on the sequence information.

By way of example and not limitation, in an embodiment of the invention, a communication system or communication protocol may specify a set of reference sequences (ie, an example of a second set of sequences), and, by way of example and not limitation, the reference sequence may include Q The sequence, and thus the Q sequences that the sequence set #A can include, can be in one-to-one correspondence with the Q sequences that the reference sequence can include.

By way of example and not limitation, in the embodiment of the present invention, the cyclic shift corresponding to the sequence included in the second sequence set has a value ranging from 0 to 11.

It should be noted that when the terminal device #A transmits the reference signal #A in the pattern 3, the effective symbol length of the reference signal #A in the time domain is when the terminal device #A transmits the reference signal #A in the pattern 1 or the pattern 2. , reference signal #A is twice the effective symbol length in the time domain. By way of example and not limitation, when the reference signal adopts the pattern 3, the value of the cyclic shift of the sequence #i' in the sequence set #A may be the same as the value of the cyclic shift of the sequence #i in the reference sequence. . When the reference signal adopts the pattern 1 or the pattern 2, the value of the cyclic shift of the sequence #i' in the sequence set #A may be the value of the cyclic shift of the sequence #i in the reference sequence divided by the system specification. The preset value (for example, 2) is rounded up or rounded down to the value obtained, where i∈[1,Q].

By way of example and not limitation, Table 18 below shows an example of cyclic shift values corresponding to reference signals employing different frequency domain patterns.

Table 18

非频分复用方式(例如，CDM方式)Non-frequency division multiplexing (for example, CDM mode)	频分复用方式(例如，IFDMA方式)Frequency division multiplexing (for example, IFDMA)
循环移位的取值#1The value of the cyclic shift #1	Floor(循环移位的取值#1÷2)Floor (the value of the cyclic shift #1÷2)
循环移位的取值#2The value of the cyclic shift #2	Floor(循环移位的取值#2÷2)Floor (the value of the cyclic shift #2÷2)
……......	……......
循环移位的取值#ZThe value of the cyclic shift #Z	Floor(循环移位的取值#Z÷2)Floor (the value of the cyclic shift #Z÷2)

Among them, Floor (Y) means to round down Y.

By way of example and not limitation, when the reference signal is in the manner of pattern 3, the cyclic shift α _λ for the sequence generation of the reference signal can be determined in the following manner:

α _λ = 2πn _{cs, λ} /12

When the reference signal adopts the pattern 1 or pattern 2, the cyclic shift α _λ for the generation of the sequence of reference signals can be determined in the following manner:

α _λ = 2πn _{cs, λ} /6

Alternatively, n _{cs, λ} may be determined according to the cyclic shift value notified in the uplink grant.

By way of example and not limitation, for example, in the embodiment of the present invention, the network device may directly send the sequence information of the sequence set #A (ie, an example of the fifth indication information) to the terminal device #A, thereby, the terminal device# A can determine each sequence in the sequence set #A based on the sequence information of the sequence set #A.

By way of example and not limitation, for example, in the embodiment of the present invention, the terminal device #A transmits the reference signal #A based on each sequence in the sequence set #A, and specifically, the terminal device #A determines that the reference signal #A includes The number of sub-reference signals is the same as the layer number P (or rank) of the data signal #A (ie, the data signal demodulated based on the reference signal #A), where P ≤ Q, and is included from the sequence set #A The corresponding P sequences are determined as the sequence included in the reference signal #A, and thus the P sequences included in the reference signal #A are transmitted.

For example, in the embodiment of the present invention, the sequence information of the sequence set #A (hereinafter, for ease of understanding and distinction, recorded as: information #3) may have a mapping relationship #C with the above information #1 (ie, An example of the second mapping relationship, or the position of the resource #A in the time domain and each sequence in the sequence set #A (for example, a cyclic shift of each sequence) may have a mapping relationship #C.

That is, in the embodiment of the present invention, the terminal device can synchronize the determination information #3 based on the mapping relationship #C when determining the information #1. Alternatively, the terminal device can synchronously determine each sequence in the sequence set #A (for example, cyclic shift of each sequence) based on the mapping relationship #C when determining the location of the resource #A in the time domain.

By way of example and not limitation, in the embodiment of the present invention, the terminal device #A may determine the information #1 and the information #3 based on the mapping relationship #C in the following manner.

Mode 3

In the embodiment of the present invention, the mapping relationship #C may mean that the information #3 is determined based on a function or a formula with the information #1 as a variable (hereinafter, referred to as function #C for convenience of understanding and explanation).

In this case, the function #C (ie, mapping relationship #C) can be saved in the network device and the terminal device #A.

By way of example and not limitation, in the embodiment of the present invention, the information of the function #C may be specified by a communication system or a communication protocol, or the function #C may also be determined by the network device and sent to the terminal device #C. Alternatively, the function #C may be set by the user, the operator, or the manufacturer in the network device and the terminal device #A, and the present invention is not particularly limited as long as the function stored in the network device and the terminal device #A is ensured. The information of #C corresponds to (for example, the same).

Tables 19 to 21 below show an example of the mapping relationship #C.

Table 19

	偏移量#1Offset #1	偏移量#2Offset #2	……......	偏移量#ZOffset #Z
循环移位的取值#1The value of the cyclic shift #1	是Yes	--	……......	否no
循环移位的取值#2The value of the cyclic shift #2	否no	是Yes	……......	否no
……......	……......	……......	……......	……......
循环移位的取值#ZThe value of the cyclic shift #Z	否no	否no	……......	是Yes

Table 20

Table 21

	符号位置#1 Symbol position #1	符号位置#2 Symbol position #2	……......	符号位置#ZSymbol position #Z
循环移位的取值#1The value of the cyclic shift #1	是Yes	否no	……......	否no
循环移位的取值#2The value of the cyclic shift #2	否no	是Yes	……......	否no
……......	……......	……......	……......	……......
循环移位的取值#ZThe value of the cyclic shift #Z	否no	否no	……......	是Yes

In summary, in mode 3, the network device can transmit the above information #1 to the terminal device #A, whereby the terminal device can determine based on the information #1 and the mapping relationship #C (specifically, function #C). Information #3, further, the terminal device #A can determine the time domain location of the resource #A and the sequence in the sequence set #A.

It should be noted that, in the embodiment of the present invention, the foregoing manners 1 and 3 may be used separately.

Alternatively, in the embodiment of the present invention, the foregoing mode 1 and mode 3 may be used in combination, or in the embodiment of the present invention, the mapping relationship #A (or mapping relationship #B) and the mapping relationship #C may be the same. A mapping relationship, in which case information #2 and information #3 can be determined synchronously based on the information #1.

Mode 4

In the embodiment of the present invention, M parameter sets #2 (ie, an example of the second parameter set) may be stored in the network device and the terminal device #A, wherein each parameter set in the M parameter sets is # 2 includes two (or more than two) parameters, one parameter corresponds to time domain information, and the other parameter corresponds to sequence information, wherein at least one different parameter exists between any two parameter sets #2 (for example, time domain Information or sequence).

By way of example and not limitation, in the embodiment of the present invention, the M parameter sets #2 may be specified by a communication system or a communication protocol, or the M parameter sets #2 may also be determined by the network device and sent to the terminal. The device #A, or the M parameter set #2 may also be set by the user, the operator, or the manufacturer in the network device and the terminal device #A, and the present invention is not particularly limited as long as the network device and the terminal are secured. The M parameter sets #2 stored in the device #A may correspond (for example, the same).

By way of example and not limitation, in the embodiment of the present invention, the M parameter sets #2 may be saved in the network device and the terminal device #A in the form of a table, for example, the M parameter sets #2 may correspond to the entries. M lines, and each line includes two (or more than two) parameters, one of which corresponds to time domain information and the other of which corresponds to sequence information. For another example, the M parameter sets #2 may correspond to the M columns in the entry, and each column includes two (or more than two) parameters, one parameter corresponding to the time domain information and the other parameter corresponding to the sequence information.

In this case, in the embodiment of the present invention, in the embodiment of the present invention, the mapping relationship #C may mean that the information #3 and the information #1 belong to the same parameter set #2 in the N parameter sets #2. In other words, the mapping relationship #C may mean that the information #3 and the information #1 are information corresponding to two parameters in the same row (or the same column) in the entry.

In this case, as an example and not limitation, the mapping relationship #C may be as shown in the following Tables 22 to 24.

Table 22

标识(或者说，索引)Identification (or index)	时域信息Time domain information	序列信息Sequence information
000000	偏移量#1Offset #1	循环移位的取值#1The value of the cyclic shift #1

001001	偏移量#2Offset #2	循环移位的取值#2The value of the cyclic shift #2
……......	……......	……......
111111	偏移量#ZOffset #Z	循环移位的取值#ZThe value of the cyclic shift #Z

Table 23

标识(或者说，索引)Identification (or index)	时域信息Time domain information	序列信息Sequence information
000000	时间单元位置#1Time unit location #1	循环移位的取值#1The value of the cyclic shift #1
001001	时间单元位置#1Time unit location #1	循环移位的取值#2The value of the cyclic shift #2
……......	……......	……......
111111	时间单元位置#1Time unit location #1	循环移位的取值#ZThe value of the cyclic shift #Z

Table 24

标识(或者说，索引)Identification (or index)	时域信息Time domain information	序列信息Sequence information
000000	符号位置#1 Symbol position #1	循环移位的取值#1The value of the cyclic shift #1
001001	符号位置#1 Symbol position #1	循环移位的取值#2The value of the cyclic shift #2
……......	……......	……......
111111	符号位置#1 Symbol position #1	循环移位的取值#ZThe value of the cyclic shift #Z

Therefore, the network device can transmit the identifier (or index) of the parameter set #2 (hereinafter, in order to facilitate column and distinguish, the parameter set #2-A) to which the information #1 and the information #3 belong to Terminal device #A.

Further, the terminal device #A can determine the parameter set #2-A based on the received identifier, and use the parameter in the parameter set #2-A as the information #1 and the information #3, that is, the resource #A Time domain information and sequence information for sequence set #A.

It should be noted that the specific content of the identifier of each parameter set #2 is merely an exemplary description, and the present invention is not limited thereto. The number of bits and the bit value included in the identifier of each parameter set #2 can be arbitrarily determined, as long as Let an identifier uniquely indicate a parameter set #2.

It should be noted that, in the embodiment of the present invention, the foregoing manners 2 and 4 may be used separately.

Alternatively, in the embodiment of the present invention, the foregoing mode 2 and mode 4 may be used in combination, or in the embodiment of the present invention, the mapping relationship #A (or mapping relationship #B) and the mapping relationship #C may be the same. A mapping relationship, in which case information #2 and information #3 can be determined synchronously based on the information #1.

Moreover, in the embodiment of the present invention, the above-described modes 3 and 4 can be used alone.

Alternatively, in the embodiment of the present invention, the mode 3 and the mode 4 may also be used in combination. For example, in the embodiment of the present invention, the network device may also send the time domain information of the resource #A to the terminal device (ie, the information # 1), whereby the terminal device #A can determine the parameter set including the information #1 (ie, the parameter set #2-A) from the M parameter sets #2, and further, the terminal device can set the parameter set #2 The sequence information in -A is taken as information #3.

In the embodiment of the present invention, the information #1, the information #2, and the information #3 may have a mapping relationship #D, and the following Table 25 and Table 26 show two examples of the mapping relationship #D.

It should be noted that, in the embodiment of the present invention, when different frequency domain resource usage modes (for example, frequency division multiplexing mode and non-frequency division multiplexing mode) are adopted, information #1, information #2 and information are used. The mapping relationship between #3 can be different.

In this regard, in the embodiment of the present invention, the network device may send a complex to the terminal device #A for indicating the resource #A. The indication information (for example, 1 bit) of the mode (for example, frequency division multiplexing mode and non-frequency division multiplexing mode).

Table 25

Table 26

In the embodiment of the present invention, multiple (for example, M) parameter sets may be pre-configured, and each parameter set may include one time domain resource information, one frequency domain information, and one sequence information.

The time domain information may indicate a time domain location of the reference signal, where the time domain location may include a relative location of a time unit carrying the reference signal relative to a time unit carrying the data signal and/or a symbol carrying the reference signal in a time unit The location in, or the time domain location may include the absolute location of the time unit or symbol carrying the reference signal.

The frequency domain resource information may indicate a frequency domain pattern of the reference signal, specifically, a frequency domain pattern when the frequency domain resource is used in a frequency division multiplexing manner. That is, in the embodiment of the present invention, when the frequency domain resource is used in the non-frequency division multiplexing manner, the frequency domain pattern may include only one type.

It should be noted that, in this case, as an example and not by way of limitation, the network device may also indicate, by using, for example, 1 bit, whether the frequency domain resource that the terminal device carries the reference signal is in a frequency division multiplexing manner.

The time domain or frequency domain resource information may indicate a cyclic shift of the sequence used.

For example, in the implementation of the present invention, at least one different parameter exists between any two parameter sets (corresponding to the same resource multiplexing mode) in the M parameter sets (ie, time domain information, frequency domain information, and At least one parameter in the sequence information).

Therefore, in the embodiment of the present invention, for example, the network device may determine the time domain information of the reference signal #A, the frequency domain information, and the sequence information (ie, the information #1 to the information #3) to which the parameter belongs (hereinafter, For easy understanding and differentiation, it is recorded as: parameter set #3), and the network device can transmit the indication information of the parameter set #3 to the terminal device #A, so that the terminal device #A can determine the parameter set #3, and The time domain information, the frequency domain information, and the sequence information in the parameter set #3 are referred to as the above information #1 to information #3.

Alternatively, in the embodiment of the present invention, for one of the time domain information, the frequency domain information, and the sequence information, the following conditions exist: (corresponding to the same resource multiplexing manner) the information included in the M parameter sets includes #a Different from each other, in this case, the network device can determine the information #a (recorded, information #aA) used by the reference signal #A, and the network device can transmit the indication information of the information #aA to the terminal device #A, thereby The terminal device #A can uniquely determine the parameter set to which the information #aA belongs according to the information #aA, and use the time domain information, the frequency domain information, and the sequence information in the parameter set as the above-mentioned information #1 to information #3.

It should be noted that, in the embodiment of the present invention, the network device may adopt a method and a process similar to the foregoing terminal device #A, and determine information #1, information #2, and information # based on any one of the foregoing manners 1 to 4. 3. Further, the resource #A is determined, and on the resource #A, the reference signal #A transmitted by the terminal device #A is received.

It should be understood that the information of the resource #A (for example, the time domain resource information of the resource #A and/or the frequency domain resource information of the resource #A) and the reference signal #A (specifically, the reference signal #A is used) Sequence information) The specific mapping relationship between them is merely an exemplary description, and the present invention is not particularly limited, and it is possible to ensure that one of the network device and the terminal device #A based on the resource #A information and the sequence information of the reference signal #A determines the other party. In the case of the mapping, the specific content of the mapping relationship can be arbitrarily changed.

For example, in the embodiment of the present invention, when the reference signal #A and the data signal #A are carried in the same time unit (for example, sTTI), the number of cyclic shifts that can be used by the reference signal #A is the number #A, which is set in When the reference signal #A and the data signal #A are carried in different time units (for example, sTTI), the number of cyclic shifts that can be used by the reference signal #A is the number #B, then in the embodiment of the present invention, the number #A can Greater than or equal to the number #B.

In addition, as an example and not limitation, in the embodiment of the present invention, the network device may carry the index of the information #1, the information #2, the information #3, or the parameter set #A on the downlink control information (Downlink Control Indicator, DCI). And sent to terminal device #A.

It should be noted that, in the embodiment of the present invention, the network device may send, to the terminal device #A, the DCI for instructing the terminal device #A to transmit the reference signal through the resource #A, and the resources carried in the multiple DCIs. The index of information, sequence information, or parameter sets may vary.

In this case, the terminal device #A can perform transmission of the reference signal based on one of the received plurality of DCIs, and can ignore other received DCIs.

As an example and not by way of limitation, the DCI for reference signal transmission may be the first one of the received plurality of DCIs, ie, the terminal device #A may perform transmission of the reference signal based on the DCI received for the first time, and , you can ignore the DCI received later. Specifically, in the embodiment of the present invention, the terminal device #A may determine the resource according to the index of the resource information, the sequence information, or the parameter set that is received in the DCI that is first received to indicate the transmission of the reference signal on the resource #A. Sequence information of #A's resource information, sequence set #A.

By way of example and not limitation, the DCI for reference signal transmission may be the last one of the received plurality of DCIs, that is, the terminal device #A may perform transmission of the reference signal based on the last received DCI, and The previously received DCI can be ignored. Specifically, in the embodiment of the present invention, the terminal device #A may determine the resource according to the newly received index of the resource information, the sequence information, or the parameter set carried in the DCI for indicating the transmission of the reference signal on the resource #A. Sequence information of #A's resource information, sequence set #A.

At S220, the terminal device #A can determine the transmission reference signal #A based on the sequence set #A determined as described above on the resource #A determined as described above.

It should be noted that, in the embodiment of the present invention, the network device may adopt a method and a process similar to the foregoing terminal device #A, and determine information corresponding to the information #1 based on the mapping relationship #A (or the mapping relationship #B). #2, further, the resource #A is determined, and on the resource #A, the reference signal #A transmitted by the terminal device #A is received.

Moreover, in the embodiment of the present invention, the network device may adopt a method and a procedure similar to the above-described terminal device #A, determine the information #3 corresponding to the information #1 based on the mapping relationship #C, and further determine the reference signal #A. The sequence used.

In the embodiment of the present invention, by mapping a time domain resource of the reference signal (for example, a time domain position of the reference signal) with a frequency domain resource of the reference signal (for example, a frequency domain pattern of the reference signal), in general, The IFDMA pattern is configured because two different terminal devices are to multiplex the same symbol for carrying a reference signal (eg, DMRS) by limiting the pattern corresponding to the IFDMA, especially when the reference signal and the data signal are not on the same TTI. The pattern of time is a fixed one (for example, one of pattern 2 or pattern 1), which can reduce the redundancy state, thereby reducing the signaling overhead of the indication.

Also, by way of example and not limitation, for example, in the embodiments of the present invention, if the network device and the terminal device The communication does not support MU-MIMO, then when the UE is configured with an IFDMA pattern and the DMRS and data of the UE are not on the same TTI, the configured IFDMA pattern is fixed to a pattern (for example, in pattern 1 or pattern 2) One), when the UE is configured with an IFDMA pattern and the DMRS and data of the UE are on the same TTI, the configured IFDMA pattern is fixed to another pattern (for example, the other of the pattern 1 or the pattern 2).

For another example, if the communication between the network device and the terminal device supports MU-MIMO, when the UE is configured with an IFDMA pattern, and the DMRS and data of the UE are not on the same TTI, the configured IFDMA pattern is fixed to a pattern ( For example, one of the pattern 1 or the pattern 2), when the UE is configured with an IFDMA pattern, and the DMRS and data of the UE are on the same TTI, the configured IFDMA pattern may be any pattern (for example, pattern 1 or Any one of the patterns 2).

For another example, if the DMRS and the data signal are in the same sTTI, the configured IFDMA pattern is fixed to a pattern (for example, one of the pattern 1 or the pattern 2), and if the DMRS and the data signal are not in the same sTTI, the configured The IFDMA pattern is fixed to another pattern (for example, the other of pattern 1 or pattern 2).

As another example, if there are two DMRSs on one sTTI, the two DMRSs use different patterns.

Next, a method and a process for transmitting another reference signal according to an embodiment of the present invention will be described in detail with reference to FIG.

In the embodiment of the present invention, the network device may transmit a reference signal with one or more terminal devices, and the network device is similar to the process for each terminal device to transmit the reference signal. For ease of understanding, the following is a network device and a terminal. The reference signal transmission process between the device #B (that is, an example of the second terminal device) is taken as an example for explanation.

Moreover, in the embodiment of the present invention, one or more reference signals for one or more data signals may be transmitted between the network device and the terminal device #B, and the transmission process of each reference signal is similar, for ease of understanding, Hereinafter, a process of transmitting a reference signal for data signal #B (hereinafter, referred to as reference signal #B for ease of understanding and explanation) between the network device and the terminal device #B will be described as an example.

As shown in FIG. 9, when the network device needs to transmit the data signal #B to the terminal device #B (for example, the data signal #B may be a signal carrying data or control information), the network device needs to transmit for the data. The signal #B performs a demodulated reference signal #B (i.e., an example of the second reference signal), that is, the reference signal #B may be a downlink reference signal.

At S310, the terminal device #B may determine a resource for carrying the reference signal #B (ie, an example of the second resource, hereinafter, for ease of understanding and explanation, denoted as: resource #B).

In the embodiment of the present invention, the resource #B may include resources in the time domain and resources in the frequency domain. Therefore, the network device can determine information indicating the location of the resource #B in the time domain (ie, an example of time domain information of the second resource, hereinafter, for ease of understanding and distinction, note: information #1') And information for indicating the location of the resource #B in the frequency domain (that is, an example of the frequency domain information of the second resource, hereinafter, for ease of understanding and distinction, denoted as: information #2'), and based on Information #1' and information #2' determine the resource #B.

By way of example and not limitation, the symbol position of reference signal #B on the time unit carrying reference signal #B may be preset (or fixed or configured). Moreover, as an example and not by way of limitation, the frequency domain position of the reference signal #B on the time unit carrying the reference signal #B may also be preset (or fixed or configured). That is, correspondingly, the terminal device #B can receive the information #1' transmitted by the network device, and determine the bearer parameter based on the information #1'. The location of the time domain resource of signal #B can be determined, and then resource #B can be determined. Specifically, the location of the time domain resource carrying the reference signal #B herein may refer to the relative position between the time unit in which the resource #B is located relative to the time domain unit in which the bearer data signal #B is located.

By way of example and not limitation, in an embodiment of the invention, reference signal #B on the same time unit allows for demodulation of data signals on 2 consecutive time units. In other words, for the data signal #B, the reference signal #B for demodulation of the data signal #B may have only two positions. Optionally, the two time units include a time unit in which the data signal #B is located and a previous time unit in the time unit in which the data signal #B is located, or the two time units include the time unit and data in which the data signal #B is located. The next time unit of the time unit in which signal #B is located. For example, if the data signal #B is carried on the nth sTTI, the two possible time units for carrying the reference signal #B may be the n-1th sTTI and the nth sTTI, or the 2 The time unit that may be used to carry the reference signal #B may be the nth sTTI and the n+1th sTTI.

By way of example and not limitation, in the embodiment of the present invention, the data signal #B is carried on the nth sTTI, and the time unit that may be used to carry the reference signal #B may be the n-1th sTTI (or the n+1th). sTTI) and the nth sTTI, optionally, 1 bit may be used to indicate the location of the time unit for carrying the reference signal #B, for example, "0" indicates that the time unit for carrying the reference signal #B is sTTI n, "1" indicates that the time unit for carrying the reference signal #B is sTTI n-1 (or sTTI n+1). Alternatively, 1 bit is used to indicate whether or not the reference signal #B exists on the time unit for carrying the data signal #B, for example, "0" indicates that the reference signal exists on the time unit sTTI n for carrying the data signal #B# B, "1" indicates that there is no reference signal #B on the time unit sTTI n for carrying the data signal #B, that is, "1" can implicitly indicate that the time unit for carrying the reference signal #B is sTTI n-1 (or sTTI n+1).

By way of example and not limitation, in an embodiment of the invention, reference signal #B on the same time unit allows for demodulation of data signals on three consecutive time units. In other words, for the data signal #B, the reference signal #B for demodulation of the data signal #B may have only three positions. Optionally, the three time units are three consecutive time units included in the same time slot. That is, the time unit in which the data signal #B is located and the time unit in which the reference signal #B is located belong to the same time slot. The design is mainly because data transmission based on time units of different lengths may occur in one subframe, wherein data transmission based on a time unit of 1 subframe (or 2 slots, or 1 ms) can support inter-slot frequency hopping. The short time unit in which the data signal is limited and the short time unit in which the reference signal is located belong to the same time slot, which can better support sharing of the reference signal resource on multiple short time units.

Further optionally, assuming that the data signal #B is carried on sTTI n (n=0 or 3), the time unit that may be used to carry the reference signal #B may be sTTI n or sTTI n+1; assuming data signal #B Beared on sTTI n (n=1 or 4), the time unit that may be used to carry reference signal #B may be sTTI n or sTTI n-1 or sTTI n+1; assume that data signal #B is carried on sTTI n (n=2 or 5), then the time unit that may be used to carry the reference signal #B may be sTTI n or sTTI n-1 or sTTI n-2.

By way of example and not limitation, in the embodiment of the present invention, 2 bits may be used to indicate the position of the above-described time unit for carrying the reference signal #B.

As an example and not by way of limitation, in the embodiment of the present invention, the time domain resource location where the reference signal #B may appear may be limited according to the time domain resource location where the data signal #B is located, so that 1 bit may be used to indicate the reference for the bearer. The location of the time unit of signal #B. For example, when the data signal #B is carried on sTTI n (n=0 or 3), "0" indicates that the time unit for carrying the reference signal #B is sTTI n, and "1" indicates that the reference signal #B is carried. The time unit is sTTI n+1. For another example, when the data signal #B is carried on sTTI n (n=1 or 4), “0” indicates The time unit carrying the reference signal #B is sTTI n, and "1" indicates that the time unit for carrying the reference signal #B is sTTI n-1. For another example, when the data signal #B is carried on sTTI n (n=2 or 5), "0" indicates that the time unit for carrying the reference signal #B is sTTI n, and "1" indicates that it is used to carry the reference signal # The time unit of B is sTTI n-1.

By way of example and not limitation, in the embodiment of the present invention, the terminal device #B may receive the information #3 ′ sent by the network device, and determine that at least one terminal device in the system is configured with inter-slot frequency hopping according to the information #3 ′. Thus, the terminal device #B can determine that the time unit in which the data signal #B is located and the time unit in which the reference signal #B is located belong to the same time slot.

At S320, the terminal device #B receives the reference signal #B on the resource #B determined as described above.

It should be noted that, in the embodiment of the present invention, the network device determines the resource #B by using a method and process similar to the foregoing terminal device #B, and further, transmits a reference for data signal #B demodulation on the resource #B. Signal #B.

Moreover, in the embodiment of the present invention, the network device may determine the information #1' according to the relative position between the time unit in which the resource #B is located with respect to the time domain unit in which the bearer data signal #B is located, and notify the information #1'. Give terminal device #B.

In the embodiment of the present invention, in the case that the reference signal is allowed to be shared by the multi-time unit, the reference signal for demodulating the data signal may only appear in the time unit where the data signal is located and the time unit in which the data signal is located. The neighboring time unit can achieve better resource utilization effect by implementing small signaling overhead and lower terminal equipment complexity.

In the embodiment of the present invention, in the case that the reference signal is allowed to be shared by multiple time units, the time unit in which the data signal is limited and the time unit in which the reference signal is located belong to the same time slot, which can better support time based on different lengths. The unit's data transmission coexists in the same system (or sub-frame).

FIG. 10 shows a schematic block diagram of an apparatus 400 for transmitting a reference signal according to an embodiment of the present invention. The apparatus 400 for transmitting data may correspond to (eg, may be configured or itself) a terminal device described in the above method 200 (eg, The terminal device #A), and each module or unit in the device 400 for transmitting the reference signal is used to perform each action or process performed by the terminal device (for example, the terminal device #A) in the above method 200, where In order to avoid redundancy, a detailed description thereof will be omitted.

In an embodiment of the present invention, the apparatus 400 may include a processor and a transceiver, and the processor and the transceiver are in communication connection. Optionally, the device further includes a memory, and the memory is communicatively coupled to the processor. Alternatively, the processor, the memory and the transceiver can be communicatively coupled, the memory being operative to store instructions for executing the memory stored instructions to control the transceiver to transmit information or signals.

Wherein, the communication unit in the device 400 shown in FIG. 10 can correspond to the transceiver, and the processing unit in the device 400 shown in FIG. 10 can correspond to the processor.

FIG. 11 is a schematic block diagram of an apparatus 500 for receiving a reference signal according to an embodiment of the present invention. The apparatus 500 for receiving a reference signal may correspond to (for example, may be configured or itself) a network device described in the foregoing method 200. In addition, each module or unit in the apparatus 500 for receiving the reference signal is used to perform each action or process performed by the network device in the above method 200. Here, in order to avoid redundancy, detailed description thereof is omitted.

In an embodiment of the present invention, the apparatus 500 may include a processor and a transceiver, and the processor and the transceiver are communicatively coupled. Optionally, the device further includes a memory, the memory is communicatively coupled to the processor, optionally, the processor The memory and the transceiver can be communicatively coupled, the memory being operative to store instructions for executing instructions stored by the memory to control the transceiver to transmit information or signals.

The communication unit in the apparatus 500 shown in FIG. 11 may correspond to a transceiver, and the processing unit in the apparatus 500 shown in FIG. 11 may correspond to a processor.

FIG. 12 shows a schematic block diagram of an apparatus 600 for receiving a reference signal according to an embodiment of the present invention. The apparatus 600 for receiving data may correspond to (eg, may be configured or itself) the terminal device described in the above method 300 (eg, And the terminal device #B), and each module or unit in the device 600 for receiving the reference signal is used to perform each action or process performed by the terminal device (for example, the terminal device #B) in the method 300, where In order to avoid redundancy, a detailed description thereof will be omitted.

In an embodiment of the present invention, the apparatus 600 may include a processor and a transceiver, and the processor and the transceiver are in communication connection. Optionally, the device further includes a memory, and the memory is communicatively coupled to the processor. Alternatively, the processor, the memory and the transceiver can be communicatively coupled, the memory being operative to store instructions for executing the memory stored instructions to control the transceiver to transmit information or signals.

Wherein, the communication unit in the device 600 shown in FIG. 12 can correspond to the transceiver, and the processing unit in the device 600 shown in FIG. 12 can correspond to the processor.

FIG. 13 is a schematic block diagram of an apparatus 700 for transmitting a reference signal according to an embodiment of the present invention. The apparatus 700 for transmitting a reference signal may correspond to (for example, may be configured or itself) a network device described in the foregoing method 300. In addition, each module or unit in the device 700 for transmitting the reference signal is used to perform each action or process performed by the network device in the above method 300. Here, in order to avoid redundancy, detailed description thereof will be omitted.

In an embodiment of the present invention, the apparatus 700 may include: a processor and a transceiver, the processor and the transceiver are communicatively coupled, optionally, the device further includes a memory, the memory is communicatively coupled to the processor, optionally, the processor The memory and the transceiver can be communicatively coupled, the memory being operative to store instructions for executing instructions stored by the memory to control the transceiver to transmit information or signals.

The communication unit in the apparatus 700 shown in FIG. 13 may correspond to a transceiver, and the processing unit in the apparatus 700 shown in FIG. 13 may correspond to a processor.

It should be noted that the above method embodiments may be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. The processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.

It is to be understood that the memory in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory. The volatile memory can be a Random Access Memory (RAM) that acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory. (Dynamic RAM, DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced) SDRAM (ESDRAM), Synchronous Connection Dynamic Random Access Memory (SRAM) and Direct Memory Bus (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the term "and/or" herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist simultaneously. There are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

It should be understood that, in various embodiments of the embodiments of the present invention, the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and the present invention should not be The implementation of the embodiments constitutes any limitation.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the embodiments of the invention.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the embodiments of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention, or the part contributing to the prior art or the part of the technical solution, may be embodied in the form of a software product stored in a storage medium. The instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

The foregoing is only a specific implementation manner of the embodiments of the present invention, but the protection scope of the embodiments of the present invention is not It is to be understood that those skilled in the art are susceptible to variations and substitutions within the scope of the present invention.

Claims

A method for transmitting a reference signal, the method comprising:

The terminal device determines time domain information and frequency domain information of the first resource, where the first resource is used to carry a first reference signal, and the time domain information is used to indicate a time domain location of the reference signal, where the frequency domain information is used And indicating a frequency domain pattern of the reference signal, where time domain information of the first resource has a first mapping relationship with frequency domain information of the first resource;

The terminal device sends the first reference signal on the first resource.
The method according to claim 1, wherein the frequency domain information comprises first frequency domain information or second frequency domain information, and the first frequency domain information is used to indicate that the reference signal is used in a frequency division multiplexing manner. The frequency domain pattern of the resource, the second frequency domain information is used to indicate a frequency domain pattern when the reference signal uses the resource in a non-frequency division multiplexing manner.
The method according to claim 2, wherein before the determining, by the terminal device, the time domain information and the frequency domain information of the first resource, the method further comprises:

The terminal device receives the first indication information that is sent by the network device, where the first indication information is used to indicate whether the frequency domain information of the first resource is the first frequency domain information or the second frequency domain information.
The method according to any one of claims 1 to 3, wherein the time domain information of the first resource indicates that the first reference signal is carried in a first time unit, based on the first reference signal solution The modulated first data signal is carried in the second time unit, and

In a case where the first time unit and the second time unit are different time units, the pattern indicated by the frequency domain information of the first resource is a first pattern,

In a case where the first time unit and the second time unit are the same time unit, the pattern indicated by the frequency domain information of the first resource is a second pattern,

Wherein the first pattern is different from the second pattern.
The method according to any one of claims 1 to 4, wherein the time domain information of the first resource indicates that the first reference signal is carried in a first time unit, based on the first reference signal solution The modulated first data signal is carried in the second time unit, and

In a case where the first time unit and the second time unit are different time units, the pattern indicated by the first resource frequency domain information is a first pattern, and the first pattern is a pattern corresponding to an odd subcarrier, Alternatively, the first pattern is a pattern corresponding to an even subcarrier.
The method according to any one of claims 1 to 5, wherein the terminal device determines time domain information and frequency domain information of the first resource, including:

Receiving, by the terminal device, second indication information that is sent by the network device, where the second indication information is used to indicate time domain information of the first resource;

The terminal device determines frequency domain information of the first resource according to the time domain information of the first resource and the first mapping relationship.
The method according to any one of claims 1 to 5, wherein the terminal device determines time domain information and frequency domain information of the first resource, including:

Receiving, by the terminal device, third indication information that is sent by the network device, where the third indication information is used to indicate an identifier of the first parameter set in the N parameter sets, where N≥2, in the N parameter sets Each parameter set includes a time domain information and a frequency domain information, and at least one of the time domain information and the frequency domain information between any two parameter sets is different;

The terminal device uses time domain information and frequency domain information included in the first parameter set as the first resource Time domain information and frequency domain information.
The method according to any one of claims 1 to 7, wherein the method further comprises:

Determining, by the terminal device, sequence information of a first sequence set used by the first reference signal, where the sequence information is used to determine a sequence included in a sequence set, where the first sequence set includes at least one sequence, The time domain information of a resource has a second mapping relationship with the sequence information of the first sequence set;

Sending, by the terminal device, the first reference signal on the first resource, including:

Transmitting, by the terminal device, the first reference signal on the first resource, based on sequence information of the first sequence set.
The method according to claim 8, wherein the determining, by the terminal device, the sequence information of the first sequence set used by the first reference signal comprises:

The terminal device determines sequence information of the first sequence set according to the time domain information of the first resource and the second mapping relationship.
The method according to claim 8, wherein the determining, by the terminal device, the sequence information of the first sequence set used by the first reference signal comprises:

Receiving, by the terminal device, fourth indication information that is sent by the network device, where the fourth indication information is used to indicate an identifier of the second parameter set in the M parameter sets, where M≥2, in the M parameter sets Each parameter set includes a time domain information and a sequence information, and at least one of the time domain information and the sequence information between any two parameter sets is different;

The terminal device uses time domain information and sequence information included in the second parameter set as time domain information of the first resource and sequence information of the first sequence set.
The method according to any one of claims 1 to 7, wherein the method further comprises:

Receiving, by the terminal device, fifth indication information that is sent by the network device, where the fifth indication information is used to indicate sequence information of a first sequence set used by the first reference signal, where the sequence information is used to determine that the sequence set includes a sequence, the first set of sequences comprising at least one sequence, and

Sending, by the terminal device, the first reference signal on the first resource, including:

Transmitting, by the terminal device, the first reference signal on the first resource, based on sequence information of the first sequence set.
The method according to any one of claims 1 to 11, wherein the terminal device determines time domain information and frequency domain information of the first resource, including:

The terminal device receives K control information, each control information of the K control information is used to indicate that the terminal device sends a reference signal on a third time unit, K≥2, and the third time unit is a time unit for carrying the first reference signal indicated by each of the K pieces of control information;

Determining time domain information and frequency domain information of the first resource according to the first control information in the K pieces of control information, where the first control information is the terminal in the K pieces of control information The first control information received by the device.
A method for receiving a reference signal, the method comprising:

The network device determines time domain information and frequency domain information of the first resource, where the first resource is used to carry a first reference signal, and the time domain information is used to indicate a time domain location of the reference signal, where the frequency domain information is used And indicating a frequency domain pattern of the reference signal, where time domain information of the first resource has a first mapping relationship with frequency domain information of the first resource;

The network device receives the first reference signal on the first resource.
The method according to claim 13, wherein the frequency domain information comprises first frequency domain information or second frequency domain information, and the first frequency domain information is used to indicate that the reference signal is used in a frequency division multiplexing manner. The frequency domain pattern of the resource, the second frequency domain information is used to indicate a frequency domain pattern when the reference signal uses the resource in a non-frequency division multiplexing manner.
The method of claim 14, wherein the method further comprises:

The network device sends the first indication information to the terminal device, where the first indication information is used to indicate whether the frequency domain information of the first resource is the first frequency domain information or the second frequency domain information.
The method according to any one of claims 13 to 15, wherein the time domain information of the first resource indicates that the first reference signal is carried in a first time unit, based on the first reference signal solution The modulated first data signal is carried in the second time unit, and

In a case where the first time unit and the second time unit are different time units, the pattern indicated by the frequency domain information of the first resource is a first pattern,

In a case where the first time unit and the second time unit are the same time unit, the pattern indicated by the frequency domain information of the first resource is a second pattern,

Wherein the first pattern is different from the second pattern.
The method according to any one of claims 13 to 16, wherein the time domain information of the first resource indicates that the first reference signal is carried in a first time unit, based on the first reference signal solution The modulated first data signal is carried in the second time unit, and

In a case where the first time unit and the second time unit are different time units, the pattern indicated by the first resource frequency domain information is a first pattern, and the first pattern is a pattern corresponding to an odd subcarrier, Alternatively, the first pattern is a pattern corresponding to an even subcarrier.
The method according to any one of claims 13 to 17, wherein the method further comprises:

The network device sends second indication information to the terminal device, where the second indication information is used to indicate time domain information of the first resource.
The method according to any one of claims 13 to 17, wherein the method further comprises:

The network device sends third indication information to the terminal device, where the third indication information is used to indicate an identifier of the first parameter set in the N parameter sets, where N≥2, each of the N parameter sets The parameter set includes a time domain information and a frequency domain information, and at least one of time domain information and frequency domain information between any two parameter sets is different, and the first parameter set includes time domain information and a frequency domain. The information is time domain information and frequency domain information of the first resource.
The method according to any one of claims 13 to 19, further comprising:

Determining, by the network device, sequence information of a first sequence set used by the first reference signal, where the sequence information is used to determine a sequence included in a sequence set, where the first sequence set includes at least one sequence, The time domain information of a resource has a second mapping relationship with the sequence information of the first sequence set.
The method according to claim 20, wherein the determining, by the network device, the sequence information of the first sequence set used by the first reference signal comprises:

The network device determines sequence information of the first sequence set according to the time domain information of the first resource and the second mapping relationship.
The method of claim 20, wherein the method further comprises:

The network device sends fourth indication information to the terminal device, where the fourth indication information is used to indicate M parameters An identifier of the second parameter set in the set, where M≥2, each of the M parameter sets includes a time domain information and a sequence information, time domain information between any two parameter sets and At least one of the sequence information is different, and the time domain information and the sequence information included in the second parameter set are time domain information of the first resource and sequence information of the first sequence set.
The method according to any one of claims 13 to 19, further comprising:

The network device sends, to the terminal device, fifth indication information, where the fifth indication information is used to indicate sequence information of a first sequence set used by the first reference signal, where the sequence information is used to determine a sequence included in the sequence set. The first set of sequences includes at least one sequence.
The method according to any one of claims 13 to 23, wherein the method further comprises:

The network device sends K control information to the terminal device, where each of the K control information is used to instruct the terminal device to send a reference signal on a third time unit, K≥2, the third The time unit is a time unit for carrying the first reference signal indicated by each of the K pieces of control information, so that the terminal device is configured according to the first control information of the K pieces of control information, Determining time domain information and frequency domain information of the first resource, where the first control information is the first control information received by the terminal device in the K control information.
A device for transmitting a reference signal, the device comprising:

a processing unit, configured to determine time domain information and frequency domain information of the first resource, where the first resource is used to carry a first reference signal, and the time domain information is used to indicate a time domain location of the reference signal, where the frequency domain is The information is used to indicate a frequency domain pattern of the reference signal, where the time domain information of the first resource has a first mapping relationship with the frequency domain information of the first resource;

a communication unit, configured to send the first reference signal on the first resource.
The apparatus according to claim 25, wherein the frequency domain information comprises first frequency domain information or second frequency domain information, and the first frequency domain information is used to indicate that the reference signal is used in a frequency division multiplexing manner. a frequency domain pattern when the resource is used, the second frequency domain information is used to indicate a frequency domain pattern when the reference signal uses the resource in a non-frequency division multiplexing manner, and

The communication unit is further configured to receive the first indication information that is sent by the network device, where the first indication information is used to indicate whether the frequency domain information of the first resource is the first frequency domain information or the second frequency domain. information.
The apparatus according to claim 25 or 26, wherein the time domain information of the first resource indicates that the first reference signal is carried in a first time unit, and the first demodulation based on the first reference signal The data signal is carried in the second time unit, and

In a case where the first time unit and the second time unit are different time units, the pattern indicated by the frequency domain information of the first resource is a first pattern,

In a case where the first time unit and the second time unit are the same time unit, the pattern indicated by the frequency domain information of the first resource is a second pattern,

Wherein the first pattern is different from the second pattern.
The apparatus according to any one of claims 25 to 27, wherein the time domain information of the first resource indicates that the first reference signal is carried in a first time unit, based on the first reference signal solution The modulated first data signal is carried in the second time unit, and

In a case where the first time unit and the second time unit are different time units, the pattern indicated by the first resource frequency domain information is a first pattern, and the first pattern is a pattern corresponding to an odd subcarrier, Or the said A pattern is a pattern corresponding to even subcarriers.
The device according to any one of claims 25 to 28, wherein the communication unit is further configured to receive second indication information sent by the network device, where the second indication information is used to indicate the first resource The time domain information, the processing unit is specifically configured to determine frequency domain information of the first resource according to the time domain information of the first resource and the first mapping relationship; or

The communication unit is further configured to receive third indication information that is sent by the network device, where the third indication information is used to indicate an identifier of the first parameter set of the N parameter sets, where N≥2, the N parameters Each parameter set in the set includes one time domain information and one frequency domain information, and at least one of time domain information and frequency domain information between any two parameter sets is different, and the processing unit is specifically configured to use the The first parameter set includes time domain information and frequency domain information as time domain information and frequency domain information of the first resource.
The apparatus according to any one of claims 25 to 29, wherein the processing unit is further configured to determine sequence information of a first sequence set used by the first reference signal, the sequence information being used for determining The sequence set includes a sequence, wherein the first sequence set includes at least one sequence, and time domain information of the first resource has a second mapping relationship with sequence information of the first sequence set;

The communication unit is specifically configured to send, according to the sequence information of the first sequence set, the first reference signal on the first resource.
The apparatus according to claim 30, wherein the processing unit is configured to determine sequence information of the first sequence set according to time domain information of the first resource and the second mapping relationship.
The device according to claim 30, wherein the communication unit is further configured to receive fourth indication information sent by the network device, where the fourth indication information is used to indicate a second parameter set of the M parameter sets. An identifier, where M≥2, each of the M parameter sets includes a time domain information and a sequence information, and at least one of time domain information and sequence information between any two parameter sets is different ;

The processing unit is configured to use time domain information and sequence information included in the second parameter set as time domain information of the first resource and sequence information of the first sequence set.
A device for receiving a reference signal, the device comprising:

a processing unit, configured to determine time domain information and frequency domain information of the first resource, where the first resource is used to carry a first reference signal, and the time domain information is used to indicate a time domain location of the reference signal, where the frequency domain is The information is used to indicate a frequency domain pattern of the reference signal, where the time domain information of the first resource has a first mapping relationship with the frequency domain information of the first resource;

And a communication unit, configured to receive the first reference signal on the first resource.
The apparatus according to claim 33, wherein the frequency domain information comprises first frequency domain information or second frequency domain information, and the first frequency domain information is used to indicate that the reference signal is used in a frequency division multiplexing manner. a frequency domain pattern when the resource is used, the second frequency domain information is used to indicate a frequency domain pattern when the reference signal uses the resource in a non-frequency division multiplexing manner, and

The communication unit is further configured to send the first indication information to the terminal device, where the first indication information is used to indicate whether the frequency domain information of the first resource is the first frequency domain information or the second frequency domain information. .
The apparatus according to claim 33 or 34, wherein the time domain information of the first resource indicates that the first reference signal is carried in a first time unit, and the first demodulation based on the first reference signal The data signal is carried in the second time unit, and

In the case that the first time unit and the second time unit are different time units, the first resource The pattern indicated by the frequency domain information is the first pattern.

In a case where the first time unit and the second time unit are the same time unit, the pattern indicated by the frequency domain information of the first resource is a second pattern,

Wherein the first pattern is different from the second pattern.
The apparatus according to any one of claims 33 to 35, wherein the time domain information of the first resource indicates that the first reference signal is carried in a first time unit, based on the first reference signal solution The modulated first data signal is carried in the second time unit, and

In a case where the first time unit and the second time unit are different time units, the pattern indicated by the first resource frequency domain information is a first pattern, and the first pattern is a pattern corresponding to an odd subcarrier, Alternatively, the first pattern is a pattern corresponding to an even subcarrier.
The device according to any one of claims 33 to 36, wherein the communication unit is further configured to send second indication information to the terminal device, where the second indication information is used to indicate the first resource Time domain information; or

The communication unit is further configured to send third indication information to the terminal device, where the third indication information is used to indicate an identifier of the first parameter set of the N parameter sets, where N≥2, the N parameter sets Each parameter set includes a time domain information and a frequency domain information, and at least one of time domain information and frequency domain information between any two parameter sets is different, and the first parameter set includes time domain information. And the frequency domain information is time domain information and frequency domain information of the first resource.
The apparatus according to any one of claims 33 to 37, wherein the processing unit is further configured to determine sequence information of a first sequence set used by the first reference signal, the sequence information being used for determining The sequence set includes a sequence, wherein the first sequence set includes at least one sequence, and time domain information of the first resource has a second mapping relationship with sequence information of the first sequence set.
The apparatus according to claim 38, wherein the processing unit is configured to determine sequence information of the first sequence set according to time domain information of the first resource and the second mapping relationship.
The apparatus according to claim 38, wherein the communication unit is further configured to send fourth indication information to the terminal device, where the fourth indication information is used to indicate an identifier of the second parameter set in the M parameter sets. Where M ≥ 2, each parameter set of the M parameter sets includes a time domain information and a sequence information, and at least one of time domain information and sequence information between any two parameter sets is different, The time domain information and the sequence information included in the second parameter set are time domain information of the first resource and sequence information of the first sequence set.