WO2018107502A1

WO2018107502A1 - Method for transmitting reference signal, terminal device and network device

Info

Publication number: WO2018107502A1
Application number: PCT/CN2016/110550
Authority: WO
Inventors: 林亚男
Original assignee: 广东欧珀移动通信有限公司
Priority date: 2016-12-16
Filing date: 2016-12-16
Publication date: 2018-06-21
Also published as: CN109565799A; TW201824901A; CN109565799B; CN113079575A

Abstract

Disclosed are a method for transmitting a reference signal, a terminal device and a network device. The method comprises: a terminal device receives first indication information sent by a network device, the first indication information indicating first time-frequency resources for transmitting a target channel; the terminal device detects a target reference signal in the first time-frequency resources; and the terminal device demodulates the target channel according to the detection result of the target reference signal. In this way, the terminal device can flexibly demodulate the received channel.

Description

Method for transmitting reference signal, terminal device and network device

Technical field

The embodiments of the present application relate to the field of wireless communications, and, more particularly, to a method, a terminal device, and a network device for transmitting a reference signal.

Background technique

Currently, in a 5G system, or a new radio system (New Radio, referred to as "NR"), resources can be dynamically shared among various services, for example, an enhanced mobile broadband ("eMBB") service can be High Reliable and Low Latency Communications (URLLC) services dynamically share resources, that is, eMBB services that transmit data on certain physical resource blocks. Under certain conditions, these resources can be Priority or overlap is multiplexed by URLLC services. For this multiplexing mode, the URLLC service has a higher priority of occupying eMBB resources by default. Because the eMBB service is different from the URLLC service scheduling delay, the base station may not be able to notify the terminal whether the URL is inserted in the current eMBB service in the downlink control signaling for scheduling the eMBB service, and the terminal device cannot correctly demodulate the channel sent by the base station. After processing, this will seriously affect the receiving processing of the channel by the terminal device and reduce its receiving performance.

Summary of the invention

The embodiment of the present application provides a method for transmitting a reference signal, a terminal device, and a network device, which can enable the terminal device to perform receiving processing on a channel sent by the network device.

In a first aspect, a method for transmitting a reference signal is provided, the method includes: receiving, by a terminal device, first indication information sent by a network device, where the first indication information indicates a first time-frequency resource used for transmitting a target channel The terminal device detects a target reference signal on a specific time-frequency resource in the first time-frequency resource; the terminal device receives the target channel according to the detection result of the target reference signal.

Therefore, in the embodiment of the present invention, the terminal device can receive the target channel sent by the network device in a reasonable manner by analyzing the detection result of the target reference signal, so that the target channel can be effectively demodulated and processed, and the pair is added. The success rate of the reception processing of the target channel.

Optionally, in an implementation manner of the first aspect, the detection result includes the following One of the following: the target reference signal is not detected on the specific time-frequency resource; the target reference signal is detected on the specific time-frequency resource; and the configuration information of the target reference signal is detected.

Optionally, in an implementation manner of the first aspect, the configuration information includes information about the specific time-frequency resource or sequence information of the target reference signal.

Optionally, in an implementation manner of the first aspect, the specific time-frequency resource includes at least one symbol in a time domain, and occupies all frequencies in the first time-frequency resource in the at least one symbol. Domain resource or part of the frequency domain resource.

Optionally, in an implementation manner of the first aspect, if the frequency domain width of the first time-frequency resource is less than or equal to a preset frequency threshold, the specific time-frequency resource is occupied in the at least one symbol. All the frequency domain resources in the first time-frequency resource; or, if the frequency domain width of the first time-frequency resource is greater than the preset frequency threshold, the specific time-frequency resource is in the at least one symbol And occupying part of the frequency domain resources in the first time-frequency resource.

Optionally, in an implementation manner of the first aspect, before the detecting, by the terminal device, the target reference signal in the first time-frequency resource, the method further includes: the terminal device receiving the network device The second indication information is sent, where the second indication information is used to indicate that the terminal device detects the target reference signal on the first time-frequency resource.

Optionally, in an implementation manner of the first aspect, before the detecting, by the terminal device, the target reference signal in the first time-frequency resource, the method further includes: the terminal device receiving the network device The third indication information that is sent, the third indication information includes configuration information of the at least one reference signal, and the configuration information of the at least one reference signal includes configuration information of the target reference signal.

Optionally, in an implementation manner of the first aspect, the terminal device, according to the detection result of the target reference signal, receiving the target channel, includes: detecting, by the terminal device, the detection result according to the target reference signal Determining a resource allocation situation of the first time-frequency resource; the terminal device receiving the target channel according to a resource allocation situation of the first time-frequency resource.

In this embodiment, the terminal device can learn, by using the detection result of the target reference signal, the resource allocation situation of the time-frequency resource currently used for receiving the target channel, for example, whether the time-frequency resource is occupied by other channels or signals, or is pre-empted by the network device. The target channel is not used for transmitting, so that the terminal device can receive the target channel that the network device sends to the target channel according to the obtained resource allocation situation, and effectively demodulate the target channel and the like, and increase the target channel. Receiving processing Success rate. Optionally, in an implementation manner of the first aspect, the resource allocation situation of the first time-frequency resource includes at least one of the following: whether the first time-frequency resource includes another channel or Time-frequency resources of the signal, and/or reserved resources; information of time-frequency resources for transmitting other channels or signals in the first time-frequency resource, and/or information of reserved resources; Information in the frequency resource for transmitting the first symbol of the target channel.

Optionally, in an implementation manner of the first aspect, the terminal device determines, according to the detection result of the target reference signal, a resource allocation situation of the first time-frequency resource, including: if the terminal device is If the target reference signal is not detected in the specific time-frequency resource, it is determined that the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserved resources.

Optionally, in an implementation manner of the first aspect, the terminal device determines, according to the detected detection result of the target reference signal, a resource allocation situation of the first time-frequency resource, including: And determining, by the terminal device, that the sequence used by the target reference signal is different from the sequence of the pre-reference signal, or that the coverage code used by the target reference signal is different from the coverage code of the pre-reference signal, determining The first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserved resources.

Optionally, in an implementation manner of the first aspect, the terminal device determines, according to the detected detection result of the target reference signal, a resource allocation situation of the first time-frequency resource, including: the terminal The device determines, according to the detected configuration information of the target reference signal, and the correspondence between the reference signal configuration information and the time-frequency resource, time-frequency resources used for transmitting other channels or signals in the first time-frequency resource, and / or reserve resources.

Optionally, in an implementation manner of the first aspect, the terminal device determines, according to the detected configuration information of the target reference signal, a resource allocation situation of the first time-frequency resource, including: the terminal And determining, by the device, the first symbol used to transmit the target channel in the first time-frequency resource according to the detected configuration information of the target reference signal and the correspondence between the reference signal configuration information and the symbol position.

Optionally, in an implementation manner of the first aspect, the target reference signal is transmitted through M antenna ports, and the target channel is transmitted through N antenna ports, where N is greater than or equal to M.

Optionally, in an implementation manner of the first aspect, if the terminal device determines that the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserves resources, The method further includes: if the terminal device fails to decode the target channel, the terminal device It is forbidden to store the information carried by the target channel.

Optionally, in an implementation manner of the first aspect, the method further includes: if the terminal device fails to decode the target channel, the terminal device stores all or Part of the valid information, the valid information including information of the first time-frequency resource used to transmit the time-frequency resource of the target channel.

In a second aspect, a method for transmitting a reference signal is provided, the method includes: determining, by a network device, a resource allocation situation of a first time-frequency resource used for transmitting a target channel; the network device according to the first time-frequency Determining whether to transmit the target reference signal and/or the configuration information of the target reference signal to the terminal device; if the network device determines to send the target reference signal to the terminal device, at the first time frequency The target reference signal is sent to the terminal device on a specific time-frequency resource in the resource; the network device sends a target channel to the terminal device on the first time-frequency resource, and is used to indicate the first First indication of time-frequency resources

Optionally, in an implementation manner of the second aspect, the configuration information includes information about the specific time-frequency resource or sequence information of the target reference signal.

Optionally, in an implementation manner of the second aspect, the specific time-frequency resource includes at least one symbol in a time domain, and occupies all the frequencies in the first time-frequency resource in the at least one symbol. Domain resource or part of the frequency domain resource.

Optionally, in an implementation manner of the second aspect, if the frequency domain width of the first time-frequency resource is less than or equal to a preset frequency threshold, the specific time-frequency resource is occupied in the at least one symbol. All the frequency domain resources in the first time-frequency resource; or if the frequency domain width of the first time-frequency resource is greater than the preset frequency threshold, the specific time-frequency resource is occupied in the at least one symbol Part of the frequency domain resource in the first time-frequency resource.

Optionally, in an implementation manner of the second aspect, the method further includes: the network device sends second indication information to the terminal device, where the second indication information is used to indicate that the terminal device is The target reference signal is detected on the first time-frequency resource.

Optionally, in an implementation manner of the second aspect, the method further includes: the network device sending third indication information to the terminal device, where the third indication information includes configuration information of the at least one reference signal The configuration information of the at least one reference signal includes configuration information of the target reference signal.

Optionally, in an implementation manner of the second aspect, the resource allocation situation of the first time-frequency resource includes at least one of the following: whether the first time-frequency resource includes another information for transmitting Time-frequency resources of the channel or signal, and/or reserved resources; information of time-frequency resources for transmitting other channels or signals in the first time-frequency resource, and/or reserved resources; Information in the frequency resource for transmitting the first symbol of the target channel.

Optionally, in an implementation manner of the second aspect, the network device determines, according to the allocation of the first time-frequency resource, whether to send a target reference signal and/or a configuration of the target reference signal to the terminal device. The information includes: if the first time-frequency resource does not include time-frequency resources for transmitting other channels or signals, and/or reserved resources, the network device determines, in the first time-frequency resource Transmitting the target reference signal to the terminal device on a specific time-frequency resource.

Optionally, in an implementation manner of the second aspect, the network device determines, according to the allocation of the first time-frequency resource, whether to send a target reference signal and/or a configuration of the target reference signal to the terminal device. The information includes: if the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserved resources, the network device determines a sequence used by the target reference signal The sequence of the pre-reference signals is different, or the cover code used by the target reference signal is different from the cover code of the pre-reference signal.

Optionally, in an implementation manner of the second aspect, the network device determines, according to the allocation of the first time-frequency resource, whether to send a target reference signal and/or a configuration of the target reference signal to the terminal device. The information includes: determining, by the network device, time-frequency resources for transmitting other channels or signals in the first time-frequency resource, and/or reserving resources, and determining a correspondence between the time-frequency resources and the reference signal configuration, Configuration information of the target reference signal.

Optionally, in an implementation manner of the second aspect, the network device determines, according to the allocation of the first time-frequency resource, whether to send a target reference signal and/or a configuration of the target reference signal to the terminal device. The information includes: determining, by the network device, a configuration of the target reference signal according to a first symbol used to transmit the target channel in the first time-frequency resource, and a correspondence between a symbol position and reference signal configuration information. information.

Optionally, in an implementation manner of the second aspect, the target reference signal is transmitted through M antenna ports, and the target channel is transmitted through N antenna ports, where N is less than or equal to M.

Therefore, in the embodiment of the present invention, the network device determines whether to send the configuration information of the target reference signal and/or the target reference signal to the terminal device by using the resource allocation of the current time-frequency resource, so that the current time-frequency can be flexibly indicated to the terminal device. Resource allocation of resources, so that the terminal device effectively demodulates the target channel and the like, and increases the success of receiving processing of the target channel. rate.

In a third aspect, a terminal device is provided, which can perform the operations of the terminal device in the above first aspect or any optional implementation manner of the first aspect. In particular, the terminal device may comprise a modular unit for performing the operations of the terminal device in any of the possible implementations of the first aspect or the first aspect described above.

In a fourth aspect, a network device is provided, which can perform the operations of the network device in any of the foregoing optional implementations of the second aspect or the second aspect. In particular, the network device may comprise a modular unit for performing the operations of the network device in any of the possible implementations of the second aspect or the second aspect described above.

In a fifth aspect, a terminal device is provided, the terminal device comprising: a processor, a transceiver, and a memory. The processor, the transceiver, and the memory communicate with each other through an internal connection path. The memory is for storing instructions for executing instructions stored by the memory. When the processor executes the instruction stored by the memory, the executing causes the terminal device to perform the method in the first aspect or any possible implementation manner of the first aspect, or the execution causes the terminal device to implement the terminal provided by the third aspect .

In a sixth aspect, a network device is provided, the network device comprising: a processor, a transceiver, and a memory. The processor, the transceiver, and the memory communicate with each other through an internal connection path. The memory is for storing instructions for executing instructions stored by the memory. When the processor executes the instruction stored by the memory, the executing causes the network device to perform the method in any of the possible implementations of the second aspect or the second aspect, or the execution causes the network device to implement the network provided by the fourth aspect device.

In a seventh aspect, a computer readable storage medium is provided, the computer readable storage medium storing a program causing a network device to perform the first aspect described above, and any one of its various implementations exempt The method of transmission.

In an eighth aspect, a computer readable storage medium is provided, the computer readable storage medium storing a program, the program causing a network device to perform the second aspect described above, and any one of the various implementations thereof The method of transmission.

According to a ninth aspect, a system chip is provided, the system chip includes an input interface, an output interface, a processor, and a memory, where the weapon is used to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement Any of the foregoing first aspects and various implementations thereof.

According to a tenth aspect, a system chip is provided, where the system chip includes an input interface and an output interface, A processor and a memory for executing instructions stored in the memory, the processor being capable of implementing any of the foregoing second aspects and various implementations thereof when the instructions are executed.

DRAWINGS

FIG. 1 is a schematic structural diagram of an application scenario of an embodiment of the present application.

2 is a flow interaction diagram of a method for transmitting a reference signal according to an embodiment of the present application.

FIG. 3(a) is a schematic diagram of a specific time-frequency resource in an embodiment of the present application.

FIG. 3(b) is a schematic diagram of a specific time-frequency resource according to an embodiment of the present application.

FIG. 4(a) is a schematic diagram of a first time-frequency resource in an embodiment of the present application.

FIG. 4(b) is a schematic diagram of a first time-frequency resource in an embodiment of the present application.

FIG. 5 is a schematic diagram of a first time-frequency resource according to an embodiment of the present application.

FIG. 6 is a flow interaction diagram of a method for transmitting a reference signal according to an embodiment of the present application.

FIG. 7 is a schematic block diagram of a terminal device according to an embodiment of the present application.

FIG. 8 is a schematic block diagram of a network device according to an embodiment of the present application.

FIG. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

FIG. 10 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

11 is a schematic structural diagram of a system chip according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, for example, Global System of Mobile Communication ("GSM") system, Code Division Multiple Access (CDMA). System), Wideband Code Division Multiple Access (WCDMA) system, Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) ") System, LTE Time Division Duplex ("TDD"), Universal Mobile Telecommunication System (UMTS), and future 5G communication systems.

The present application describes various embodiments in connection with a terminal device. A terminal device may also be referred to as a user equipment (User Equipment, "UE"), an access terminal, a subscriber unit, a subscriber station, a mobile station, Mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol ("SIP") phone, a Wireless Local Loop (WLL) station, or a personal digital assistant (Personal Digital Assistant, Referred to as "PDA"), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network, or a terminal device in a future evolved PLMN network. Wait.

The present application describes various embodiments in connection with a network device. The network device may be a device for communicating with the terminal device, for example, may be a base station (Base Transceiver Station, abbreviated as "BTS") in the GSM system or CDMA, or may be a base station (NodeB, referred to as "NB" in the WCDMA system. ”), may also be an evolved base station (Evolutional Node B, “eNB” or “eNodeB”) in the LTE system, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a future 5G network. A network side device in a network side device or a network side device in a future evolved PLMN network.

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application. The communication system in FIG. 1 may include a network device 10 and a terminal device 20. The network device 10 is configured to provide communication services for the terminal device 20 and access the core network. The terminal device 20 can access the network by searching for synchronization signals, broadcast signals, and the like transmitted by the network device 10, thereby performing communication with the network. The arrows shown in FIG. 1 may represent uplink/downlink transmissions by a cellular link between the terminal device 20 and the network device 10.

The network in the embodiment of the present application may refer to a Public Land Mobile Network (PLMN) or a Device to Device (D2D) network or a Machine to Machine (Machine to Machine). /Man, referred to as "M2M" network or other network, FIG. 1 is only a simplified schematic diagram of the example, and the network may also include other terminal devices, which are not shown in FIG.

2 is a flow chart of a method 200 of transmitting a reference signal in accordance with an embodiment of the present application. As shown in FIG. 2, the specific process of transmitting the reference signal includes:

In 210, the terminal device receives first indication information sent by the network device, where the first indication information indicates a first time-frequency resource used for transmitting the target channel.

In 220, the terminal device detects the target reference signal on the specific time-frequency resource in the first time-frequency resource.

Optionally, the specific time-frequency resource includes at least one symbol in the time domain, and all frequency domain resources or partial frequency domain resources in the first time-frequency resource are occupied in the at least one symbol.

Optionally, if the frequency domain width of the first time-frequency resource is less than or equal to a preset frequency threshold, the specific time-frequency resource occupies all the frequency domain resources in the first time-frequency resource in the at least one symbol; or The frequency domain width of the first time-frequency resource is greater than the preset frequency threshold, and the specific time-frequency resource occupies part of the frequency domain resource in the first time-frequency resource in the at least one symbol.

As shown in FIG. 3(a), it is assumed that the first time-frequency resource includes 7 symbols in the time domain, and the bandwidth in the frequency domain is f. The specific time-frequency resource may include the first time-frequency resource in the time domain. The last symbol, and occupy part of the time-frequency resource on the last symbol.

As shown in FIG. 3(b), it is assumed that the first time-frequency resource includes 7 symbols in the time domain and the bandwidth in the frequency domain is f. The specific time-frequency resource may further include the first time-frequency in the time domain. a plurality of symbols in the resource, and occupying part or all of the time-frequency resources on the plurality of symbols, for example, the specific time-frequency resource shown in FIG. 3(b) includes the third of the first time-frequency resources in the time domain. The symbol and the last symbol, and occupy all time-frequency resources on the third symbol, occupying part of the time-frequency resource on the last symbol.

Optionally, before the terminal device detects the target reference signal in the first time-frequency resource, the method further includes: receiving, by the terminal device, second indication information sent by the network device, where the second indication information is used to indicate the terminal device A target reference signal is detected on the first time-frequency resource.

Optionally, before the terminal device detects the target reference signal in the first time-frequency resource, the method further includes: receiving, by the terminal device, third indication information that is sent by the network device, where the third indication information includes at least one reference signal The configuration information of the at least one reference signal includes configuration information of the target reference signal.

In 230, the terminal device receives the destination channel according to the detection result of the target reference signal.

Optionally, the detection result includes at least one of the following: the terminal device does not detect the target reference signal on the specific time-frequency resource; the terminal device detects the target reference signal on the specific time-frequency resource; The detected configuration information of the target reference signal.

Optionally, the configuration information includes information of the specific time-frequency resource or sequence information of the target reference signal.

Optionally, the terminal device receives the target channel according to the detection result of the target reference signal, and the method includes: determining, by the terminal device, the resource allocation of the first time-frequency resource according to the detection result of the target reference signal; The resource allocation of the time-frequency resource receives the target channel.

Optionally, the resource allocation situation of the first time-frequency resource determined by the terminal device according to the detection result of the target reference signals may include at least one of the following:

Whether the first time-frequency resource includes time-frequency resources for transmitting other channels or signals, and/or reserved resources;

Information for transmitting time-frequency resources of other channels or signals in the first time-frequency resource, and/or information of reserved resources;

Information in the first time-frequency resource for transmitting the first symbol of the target channel.

In this embodiment, the terminal device can learn, by using the detection result of the target reference signal, the resource allocation situation of the time-frequency resource currently used for receiving the target channel, for example, whether the time-frequency resource is occupied by other channels or signals, or is pre-empted by the network device. The target channel is not used for transmitting, so that the terminal device can receive the target channel that the network device sends to the target channel according to the obtained resource allocation situation, and effectively demodulate the target channel and the like, and increase the target channel. The success rate of receiving processing.

In this embodiment, when other terminal devices occupy all or part of the current time-frequency resources of the first time-frequency resource for channel or signal transmission, the network device may occupy resources according to the current first time-frequency resource. In the case, the target reference signal is sent to the terminal device, and the terminal device can obtain the resource allocation of the first time-frequency resource according to the detection result of the target reference signal. The determining, by the terminal device terminal device, the resource allocation of the first time-frequency resource according to the detection result of the target reference signal, for example, may be performed in the following four manners.

Mode 1

If the target device does not detect the target reference signal in the specific time-frequency resource, determining that the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserved resources;

If the terminal device detects the target reference signal in the specific time-frequency resource, it is determined that the first time-frequency resource does not include time-frequency resources for transmitting other channels or signals, and/or reserved resources.

Mode 2

If the sequence used by the terminal device detects the target reference signal is different from the sequence of the pre-referenced DMRS (Demodulation Reference Signal (DMRS)), or the target The coverage code used by the reference signal is different from the coverage code of the pre-reference signal, and it is determined that the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserved resources;

If the terminal device does not detect the sequence and pre-reference letter used by the target reference signal If the sequence of the number is different, or the coverage code used by the target reference signal is different from the coverage code of the pre-reference signal, it is determined that the first time-frequency resource does not include time-frequency resources for transmitting other channels or signals. , and / or reserve resources.

Mode 3

The terminal device determines, according to the detected configuration information of the target reference signal, and the correspondence between the reference signal configuration information and the time-frequency resource, time-frequency resources for transmitting other channels or signals in the first time-frequency resource, and/or Or reserve resources.

For example, as shown in the schematic diagram of the first time-frequency resource shown in FIG. 4( a ), it is assumed that the first time-frequency resource includes 7 symbols in the time domain, the bandwidth in the frequency domain is f, and the network device and the terminal device Four kinds of reference signals with different configuration information are agreed, and the correspondence between each reference signal and time-frequency resources is shown in Table 1. In Table 1, the first reference signal indicates that there are other high priority channels or signal transmissions in area 1, or area 1 is reserved by the network device; the second reference signal indicates that there are other high priority channels or signal transmissions in area 2. , or area 2 is reserved by the network device; the third reference signal indicates that there are other high priority channels or signal transmissions in area 3, or area 3 is reserved by the network device; and the fourth reference signal indicates the first time-frequency resource There is no other high-priority channel or signal transmission, and there is no resource reserved by the network device in the first time-frequency resource; if the target device does not detect the target reference signal, it means that there are other areas in the area. High priority channel or signal transmission, or these areas are reserved by network equipment.

Table I

Wherein, as shown in FIG. 4(a), the area 1 is the first symbol and the second of the first time-frequency resources. a symbol, the area 2 is the third symbol and the fourth symbol in the first time-frequency resource, and the area 3 is the fifth symbol and the sixth symbol in the first time-frequency resource, for transmitting the target reference signal The specific time-frequency resource is the seventh symbol.

For another example, as shown in the schematic diagram of the first time-frequency resource shown in FIG. 4(b), it is assumed that the first time-frequency resource includes 7 symbols in the time domain, the bandwidth in the frequency domain is f, and the network device and the terminal device Four kinds of reference signals with different configuration information are agreed between each other, and the corresponding relationship between each reference signal and time-frequency resources is shown in Table 2. In Table 2, the first reference signal indicates that there are other high priority channels or signal transmissions in area 1, or area 1 is reserved by the network device; the second reference signal indicates that there are other high priority channels or signal transmissions in area 2. , or area 2 is reserved by the network device, the third reference signal indicates that there are other high priority channels or signal transmissions in areas 1 and 2, or area 1 and area 2 are reserved by the network device; the fourth reference signal indicates that There are no other high priority channels or signal transmissions in the first time-frequency resource.

Table II

Wherein, as shown in FIG. 4(b), the area 1 is the first symbol to the third symbol in the first time-frequency resource, and the area 2 is the fourth symbol and the sixth symbol in the first time-frequency resource. The specific time-frequency resource used for transmitting the target reference signal is the seventh symbol.

For another example, it is assumed that the first time-frequency resource includes 7 symbols in the time domain, the bandwidth in the frequency domain is f, and four types of reference signals having different configuration information are agreed between the network device and the terminal device. The first type of reference signal may indicate that there are other high priority channels or signal transmissions in area 1, and area 2 or 3 may have other high priority channels or signal transmissions; the second reference signal may represent area 2 There are other high priority channels or signal transmissions, and area 3 may have other high priority channels or signal transmissions; the third reference signal may indicate other high priority channels or signal transmissions in area 3, and the fourth reference signal may It indicates that there is no other high priority channel or signal transmission in the first time-frequency resource.

The foregoing is only an example, the terminal device may further determine, according to the detected configuration information of the target reference signal, and other correspondences between the reference signal configuration information and the time-frequency resource, the transmission in the first time-frequency resource. Time-frequency resources and/or reserved resources of other channels or signals.

The corresponding relationship between the reference signal configuration information and the time-frequency resource may be determined by the network device according to the resource usage situation, and the terminal device may be agreed in advance, for example, by a predetermined relationship between the terminal device and the network device. .

Mode 4

The terminal device determines, according to the detected configuration information of the target reference signal, and the correspondence between the reference signal configuration information and the symbol position, the first symbol in the first time-frequency resource for transmitting the target channel.

For example, as shown in the schematic diagram of the first time-frequency resource shown in FIG. 5, it is assumed that the first time-frequency resource includes 7 symbols in the time domain, and the bandwidth in the frequency domain is f, and the network device and the terminal device agree. The six types of reference signals with different configuration information, and the corresponding relationship between each reference signal and time-frequency resources are shown in Table 3. In Table 3, the first reference signal indicates that the target channel starts resource mapping from the first symbol (symbol 1) in the first time-frequency resource; and the second reference signal indicates that the target channel is from the second symbol ( Symbol 2) starts resource mapping; the third reference signal indicates that the target channel starts resource mapping from the third symbol (symbol 3); the fourth reference signal indicates that the target channel starts from the fourth symbol (symbol 4) Resource mapping is performed; the fifth reference signal indicates that the target channel starts resource mapping from the fifth symbol (symbol 5); the sixth reference signal indicates that the target channel starts resource mapping from the sixth symbol (symbol 6). The specific time-frequency resource used to transmit the target reference signal is the seventh symbol.

Table 3

参考信号的配置信息Reference signal configuration information	传输该目标信道的第一个符号Transmitting the first symbol of the target channel
第一种参考信号First reference signal	第一个符号First symbol
第二种参考信号Second reference signal	第二个符号Second symbol
第三种参考信号Third reference signal	第三个符号Third symbol

第四种参考信号Fourth reference signal	第四个符号Fourth symbol
第五种参考信号Fifth reference signal	第五个符号Fifth symbol
第六种参考信号Sixth reference signal	第六个符号Sixth symbol

The embodiment of the present invention does not limit the correspondence between the reference signal configuration information and the symbol position. In a specific implementation, a relatively reasonable and effective correspondence between the reference signal configuration information and the symbol position may be determined according to actual conditions.

Optionally, the target reference signal is transmitted through M antenna ports, and the target channel is transmitted through N antenna ports, where N is greater than or equal to M.

Optionally, if the terminal device determines that the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserves resources, the method further includes: if the terminal device decodes the target channel If it fails, the terminal device prohibits storing the information carried by the target channel.

Optionally, the method further includes: if the terminal device fails to decode the target channel, the terminal device stores all or part of valid information carried by the target channel, where the valid information is used in the first time-frequency resource. Transmitting information of the time-frequency resource of the target channel.

FIG. 6 is a flowchart of a method 300 for transmitting a reference signal according to an embodiment of the present application. As shown in FIG. 6, the specific process of transmitting the reference signal includes:

At 310, the network device determines a resource allocation condition for transmitting the first time-frequency resource of the target channel.

Optionally, the resource allocation situation of the first time-frequency resource may include at least one of the following:

For example, as shown in FIG. 3(a) and FIG. 3(b), the specific time-frequency resource may include the last symbol in the first time-frequency resource in the time domain, and occupy part of the time-frequency resource on the last symbol. The specific time-frequency resource may also include multiple symbols in the first time-frequency resource in the time domain, and Having a part or all of the time-frequency resources on the plurality of symbols, for example, the specific time-frequency resource shown in FIG. 3(b) includes the third symbol and the last symbol in the first time-frequency resource in the time domain, and The third symbol occupies all time-frequency resources, and some of the time-frequency resources are occupied on the last symbol.

At 320, the network device determines whether to send the target reference signal and/or the configuration information of the target reference signal to the terminal device according to the allocation of the first time-frequency resource.

Optionally, the configuration information of the target reference signal includes information of the specific time-frequency resource or sequence information of the target reference signal.

When the other terminal device occupies all or part of the current time-frequency resource for channel or signal transmission, the network device determines according to the resource occupation of the current first time-frequency resource. Whether the target reference signal and/or the configuration information of the target reference signal are sent to the terminal device, so that the terminal device can obtain the resource allocation of the first time-frequency resource according to the detection result of the target reference signal. The network device determines whether to send the target reference signal and/or the configuration information of the target reference signal to the terminal device according to the allocation of the first time-frequency resource, for example, by using the following four manners.

Mode 1

If the first time-frequency resource does not include time-frequency resources for transmitting other channels or signals, and/or reserved resources, the network device determines that the specific time-frequency resource in the first time-frequency resource is on the terminal device. Sending the target reference signal;

If the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserved resources, the network device determines that the specific time-frequency resource in the first time-frequency resource is not available to the terminal. The device sends the target reference signal.

Mode 2

If the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserved resources, the network device determines that the sequence used by the target reference signal is different from the sequence of the pre-reference signal. Or the cover code used by the target reference signal and the overlay of the pre-reference signal The cover code is not the same;

If the first time-frequency resource does not include time-frequency resources for transmitting other channels or signals, and/or reserved resources, the network device determines that the sequence used by the target reference signal is the same as the sequence of the pre-reference signal. Or the coverage code used by the target reference signal is the same as the coverage code of the pre-reference signal.

That is to say, the network device can indicate the resource allocation situation of the current time-frequency resource, or the resource occupancy situation, to the terminal device by using the reference signal of different configurations.

Mode 3

The network device determines configuration information of the target reference signal according to a time-frequency resource used for transmitting other channels or signals in the first time-frequency resource, and/or a reserved resource, and a corresponding relationship between the time-frequency resource and the reference signal configuration. .

For the correspondence between the time-frequency resource and the reference signal configuration, for example, reference may be made to the related descriptions of Table 1, Table 2, FIG. 4(a) and FIG. 4(b). For the sake of brevity, it will not be repeated here.

Mode 4

And determining, by the network device, configuration information of the target reference signal according to a first symbol of the first time-frequency resource used for transmitting the target channel, and a correspondence between the symbol position and the reference signal configuration information.

For the correspondence between the symbol position and the reference signal configuration information, for example, reference may be made to the related descriptions of Table 3 and FIG. 5. For the sake of brevity, it will not be repeated here.

In this embodiment, the network device determines whether to send the configuration information of the target reference signal and/or the target reference signal to the terminal device according to the resource allocation situation of the first time-frequency resource, so that the current time-frequency resource can be flexibly indicated to the terminal device. Resource allocation situation.

The terminal device can learn, by using the detection result of the target reference signal, the resource allocation situation of the time-frequency resource currently used for receiving the target channel, for example, whether the time-frequency resource is occupied by other channels or signals, or reserved by the network device, and is not used for transmitting the resource. The target channel, so that the terminal device can receive the target channel sent by the network device according to the obtained resource allocation situation, and effectively demodulate the target channel, thereby increasing the success rate of the receiving process of the target channel. .

At 330, if the network device determines to send the target reference signal to the terminal device, the target reference signal is sent to the terminal device on a specific time-frequency resource in the first time-frequency resource.

That is, the network device maps to the target reference signal for transmission on the M antenna ports, and maps the target channel to the N antenna ports for transmission, and N is greater than or equal to M. Since the antenna port of the transmission target reference signal is smaller than the antenna port of the transmission target channel, the target reference signal is not transmitted to the antenna port for transmission, and thus the transmission power of the target reference signal can be enhanced.

In 340, the network device sends a target channel to the terminal device on the first time-frequency resource, and first indication information used to indicate the first time-frequency resource.

Optionally, the method further includes: the network device sends the second indication information to the terminal device, where the second indication information is used to indicate that the terminal device detects the target reference signal on the first time-frequency resource.

Optionally, the method further includes: the network device sends third indication information to the terminal device, where the third indication information includes configuration information of the at least one reference signal, and the configuration information of the at least one reference signal includes configuration information of the target reference signal. .

In the embodiment of the present invention, the network device determines whether to send the configuration information of the target reference signal and/or the target reference signal to the terminal device by using the resource allocation of the current time-frequency resource, so as to flexibly indicate the current time-frequency resource to the terminal device. The resource allocation situation is such that the terminal device effectively performs demodulation and the like on the target channel, and increases the success rate of the reception processing on the target channel.

FIG. 7 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG. 7, the terminal device 400 includes a receiving unit 410 and a detecting unit 420. among them,

The receiving unit 410 is configured to: receive first indication information that is sent by the network device, where the first indication information indicates a first time-frequency resource used for transmitting a target channel;

The detecting unit 420 is configured to: detect a target reference signal on a specific time-frequency resource in the first time-frequency resource;

The receiving unit 410 is further configured to: according to the detection result of the target reference signal detected by the detecting unit, receive the target channel for demodulation.

Optionally, the detection result includes at least one of the following: the target reference signal is not detected on the specific time-frequency resource; the target reference signal is detected on the specific time-frequency resource; and the target reference is detected. Signal configuration information.

Optionally, the configuration information includes information about the specific time-frequency resource or an order of the target reference signal Column information.

Optionally, if the frequency domain width of the first time-frequency resource is less than or equal to a preset frequency threshold, the specific time-frequency resource occupies all the frequency domain resources in the first time-frequency resource in the at least one symbol; or If the frequency domain width of the first time-frequency resource is greater than the preset frequency threshold, the specific time-frequency resource occupies part of the frequency-domain resources in the first time-frequency resource in the at least one symbol.

Optionally, the receiving unit 410 is further configured to: before detecting the target reference signal in the first time-frequency resource, receive second indication information sent by the network device, where the second indication information is used to indicate that the terminal device is in the The target reference signal is detected on the first time-frequency resource.

Optionally, the receiving unit 410 is further configured to: before detecting the target reference signal in the first time-frequency resource, receive third indication information that is sent by the network device, where the third indication information includes configuration information of the at least one reference signal. The configuration information of the at least one reference signal includes configuration information of the target reference signal.

Optionally, the detecting unit 420 is configured to: determine, according to the detection result of the target reference signal, a resource allocation situation of the first time-frequency resource; and receive the target channel according to the resource allocation of the first time-frequency resource.

Optionally, the resource allocation situation of the first time-frequency resource includes at least one of: whether the first time-frequency resource includes time-frequency resources for transmitting other channels or signals, and/or reserved resources; Information for transmitting time-frequency resources of other channels or signals in the first time-frequency resource, and/or information for reserving resources; the first symbol of the first time-frequency resource for transmitting the first symbol of the target channel information.

Optionally, the detecting unit 420 is specifically configured to: if the target reference signal is not detected in the specific time-frequency resource, determine that the first time-frequency resource further includes a time-frequency resource for transmitting another channel or signal. , and / or reserve resources.

Optionally, the detecting unit 420 is specifically configured to: if the detected sequence of the target reference signal is different from the sequence of the pre-reference signal, or the cover code used by the target reference signal and the pre-reference signal If the coverage codes are different, it is determined that the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserved resources.

Optionally, the detecting unit 420 is specifically configured to: determine the first time frequency according to the detected configuration information of the target reference signal, and the correspondence between the reference signal configuration information and the time-frequency resource. Time-frequency resources in the source for transmitting other channels or signals, and/or reserved resources.

Optionally, the detecting unit 420 is configured to: determine, according to the detected configuration information of the target reference signal, and the correspondence between the reference signal configuration information and the symbol position, to transmit the target channel in the first time-frequency resource. The first symbol.

Optionally, if the terminal device determines that the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserves resources, the terminal device further includes a storage unit, if: If the target channel decoding fails, the information carried by the target channel is prohibited from being stored.

Optionally, the terminal device further includes: a storage unit, configured to: if the decoding of the target channel fails, storing all or part of valid information carried by the target channel, where the valid information includes the first time-frequency resource Information for transmitting time-frequency resources of the target channel.

It should be understood that the terminal device 400 may correspond to the terminal device in the method embodiment, and the corresponding functions of the terminal device may be implemented. For brevity, details are not described herein again.

FIG. 8 is a schematic block diagram of a network device 500 in accordance with an embodiment of the present application. As shown in FIG. 8, the terminal device 500 includes a determining unit 510 and a transmitting unit 520. among them,

The determining unit 510 is configured to: determine a resource allocation situation of the first time-frequency resource used for transmitting the target channel; and determine, according to the allocation of the first time-frequency resource, whether to send the target reference signal and/or the target reference signal to the terminal device Configuration information;

The sending unit 520 is configured to: if the determining unit 510 determines to send the target reference signal to the terminal device, send the target reference signal to the terminal device on a specific time-frequency resource in the first time-frequency resource; The target channel is sent to the terminal device on the time-frequency resource, and the first indication information used to indicate the first time-frequency resource.

Therefore, the network device determines whether the configuration information of the target reference signal and/or the target reference signal is sent to the terminal device by using the resource allocation of the current time-frequency resource, so that the resource allocation of the current time-frequency resource can be flexibly indicated to the terminal device. In order to enable the terminal device to effectively demodulate the target channel and the like, the success rate of the reception processing of the target channel is increased.

Optionally, the sending unit 520 is further configured to: send the second indication information to the terminal device, where the second indication information is used to indicate that the terminal device detects the target reference signal on the first time-frequency resource.

Optionally, the sending unit 520 is further configured to: send, to the terminal device, third indication information, where the third indication information includes configuration information of the at least one reference signal, where configuration information of the at least one reference signal includes the target reference signal Configuration information.

Optionally, the resource allocation situation of the first time-frequency resource includes at least one of: whether the first time-frequency resource includes time-frequency resources for transmitting other channels or signals, and/or reserved resources; Information for transmitting time-frequency resources of other channels or signals in the first time-frequency resource, and/or reserved resources; information for transmitting the first symbol of the target channel in the first time-frequency resource.

Optionally, the determining unit 510 is specifically configured to: if the first time-frequency resource does not include time-frequency resources for transmitting other channels or signals, and/or reserve resources, determine the first time-frequency resource. The target reference signal is sent to the terminal device on a specific time-frequency resource.

Optionally, the determining unit 510 is specifically configured to: if the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserve resources, determine the target reference. The sequence used by the signal is different from the sequence of the pre-reference signal, or the cover code used by the target reference signal is different from the cover code of the pre-reference signal.

Optionally, the determining unit 510 is specifically configured to: according to the time-frequency resource used for transmitting other channels or signals in the first time-frequency resource, and/or the reserved resource, and the corresponding configuration of the time-frequency resource and the reference signal configuration Relationship, determining configuration information of the target reference signal.

Optionally, the determining unit 510 is specifically configured to: determine, according to a first symbol of the first time-frequency resource used for transmitting the target channel, and a correspondence between a symbol position and reference signal configuration information, determine the target reference signal. Configuration information.

Optionally, the target reference signal is transmitted through M antenna ports, and the target channel is transmitted through N antenna ports, where N is less than or equal to M.

FIG. 9 is a schematic structural diagram of a terminal device 600 according to an embodiment of the present application. As shown in FIG. 6, the terminal device includes a processor 610, a transceiver 620, and a memory 630, wherein the processor 610. The transceiver 620 and the memory 630 communicate with each other through an internal connection path. The memory 630 is configured to store instructions for executing the instructions stored by the memory 630 to control the transceiver 620 to receive signals or transmit signals.

The transceiver 620 is configured to: receive first indication information sent by the network device, where the first indication information indicates a first time-frequency resource used for transmitting the target channel;

The processor 610 is configured to: detect a target reference signal on a specific time-frequency resource in the first time-frequency resource;

The transceiver 620 is further configured to: receive the target channel for demodulation according to a detection result of the target reference signal detected by the detecting unit.

Optionally, the transceiver 620 is further configured to: before detecting the target reference signal in the first time-frequency resource, receive second indication information sent by the network device, where the second indication information is used to indicate that the terminal device is in the The target reference signal is detected on the first time-frequency resource.

Optionally, the transceiver 620 is further configured to: before detecting the target reference signal in the first time-frequency resource, receive third indication information that is sent by the network device, where the third indication information includes configuration information of the at least one reference signal. The configuration information of the at least one reference signal includes configuration information of the target reference signal.

Optionally, the processor 610 is specifically configured to: according to the detection result of the target reference signal, And determining a resource allocation condition of the first time-frequency resource; and receiving the target channel according to the resource allocation of the first time-frequency resource.

Optionally, the processor 610 is specifically configured to: if the target reference signal is not detected in the specific time-frequency resource, determine that the first time-frequency resource further includes a time-frequency resource for transmitting another channel or signal. , and / or reserve resources.

Optionally, the processor 610 is specifically configured to: if the detected sequence of the target reference signal is different from the sequence of the pre-reference signal, or the cover code used by the target reference signal and the pre-reference signal If the coverage codes are different, it is determined that the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserved resources.

Optionally, the processor 610 is configured to: determine, according to the detected configuration information of the target reference signal, and the correspondence between the reference signal configuration information and the time-frequency resource, to transmit the other in the first time-frequency resource. Time-frequency resources of channels or signals, and/or reserved resources.

Optionally, the processor 610 is configured to: determine, according to the detected configuration information of the target reference signal, and the correspondence between the reference signal configuration information and the symbol position, to transmit the target channel in the first time-frequency resource. The first symbol.

Optionally, if the terminal device determines that the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserves resources, the memory 630 is specifically configured to: if the target channel is translated If the code fails, the information carried by the target channel is prohibited from being stored.

Optionally, the memory 630 is specifically configured to: if the decoding of the target channel fails, storing all or part of valid information carried by the target channel, where the valid information includes the first time-frequency resource for transmitting the target Information about the time-frequency resources of the channel.

It should be understood that, in the embodiment of the present invention, the processor 610 may be a central processing unit ("CPU"), and the processor 610 may also be other general-purpose processors, digital signal processors (DSPs). , application specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) Or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 630 can include read only memory and random access memory and provides instructions and data to the processor 610. A portion of the memory 630 may also include a non-volatile random access memory. For example, the memory 630 can also store information of the device type.

In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 610 or an instruction in a form of software. The steps of the positioning method disclosed in the embodiments of the present invention may be directly implemented as hardware processor execution completion, or performed by a combination of hardware and software modules in the processor 610. 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 630, and the processor 610 reads the information in the memory 630 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

The terminal device 600 according to the embodiment of the present invention may correspond to the terminal device for performing the method 200 in the foregoing method 200, and the terminal device 400 according to the embodiment of the present invention, and each unit or module in the terminal device 600 is used for The operations or processes performed by the terminal device in the above method 200 are performed. Here, in order to avoid redundancy, detailed description thereof will be omitted.

FIG. 10 is a schematic structural diagram of a terminal device 700 according to an embodiment of the present application. As shown in FIG. 10, the terminal device includes a processor 710, a transceiver 720, and a memory 730, wherein the processor 710, the transceiver 720, and the memory 730 communicate with each other through an internal connection path. The memory 730 is configured to store instructions for executing the instructions stored by the memory 730 to control the transceiver 720 to receive signals or transmit signals.

The processor 710 is configured to: determine a resource allocation situation of the first time-frequency resource used for transmitting the target channel; determine, according to the allocation of the first time-frequency resource, whether to send the target reference signal to the terminal device, and/or Configuration information of the target reference signal;

The transceiver 720 is configured to: if the processor 710 determines to send the target reference signal to the terminal device, send the target reference signal to the terminal device on a specific time-frequency resource in the first time-frequency resource; The target channel is sent to the terminal device on the time-frequency resource, and the first indication information is used to indicate the first time-frequency resource.

Therefore, the network device determines whether the configuration information of the target reference signal and/or the target reference signal is sent to the terminal device by using the resource allocation of the current time-frequency resource, so that the resource allocation of the current time-frequency resource can be flexibly indicated to the terminal device. In order for the terminal device to effectively target the target The channel performs processing such as demodulation, which increases the success rate of the reception processing of the target channel.

Optionally, the transceiver 720 is further configured to: send the second indication information to the terminal device, where the second indication information is used to indicate that the terminal device detects the target reference signal on the first time-frequency resource.

Optionally, the transceiver 720 is further configured to: send third indication information to the terminal device, where the third indication information includes configuration information of the at least one reference signal, where configuration information of the at least one reference signal includes the target reference signal Configuration information.

Optionally, the processor 710 is specifically configured to: if the first time-frequency resource does not include time-frequency resources for transmitting other channels or signals, and/or reserve resources, determine the first time-frequency resource. The target reference signal is sent to the terminal device on a specific time-frequency resource.

Optionally, the processor 710 is specifically configured to: if the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserve resources, determine the target reference. The sequence used by the signal is different from the sequence of the pre-reference signal, or the cover code used by the target reference signal is different from the cover code of the pre-reference signal.

Optionally, the processor 710 is specifically configured to: according to the time-frequency resource used for transmitting other channels or signals in the first time-frequency resource, and/or reserved resources, and corresponding to the configuration of the time-frequency resource and the reference signal Relationship, determining configuration information of the target reference signal.

Optionally, the processor 710 is specifically configured to: determine, according to the first symbol used to transmit the target channel in the first time-frequency resource, and the correspondence between the symbol position and the reference signal configuration information, determine the target reference signal. Configuration information.

It should be understood that, in the embodiment of the present invention, the processor 710 may be a central processing unit ("CPU"), and the processor 710 may also be other general-purpose processors, digital signal processors (DSPs), Application Specific Integrated Circuits (ASICs), off-the-shelf programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 730 can include read only memory and random access memory and provides instructions and data to the processor 710. A portion of the memory 730 may also include a non-volatile random access memory. For example, the memory 730 can also store information of the device type.

In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 710 or an instruction in a form of software. The steps of the positioning method disclosed in the embodiment of the present invention may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 710. 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 memory 730, and processor 710 reads the information in memory 730 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.

The network device 700 according to the embodiment of the present invention may correspond to the network device for performing the method 300 in the foregoing method 300, and the network device 500 according to the embodiment of the present invention, and each unit or module in the network device 700 is used for The operations or processes performed by the network device in the above method 300 are performed. Here, in order to avoid redundancy, detailed description thereof will be omitted.

FIG. 11 is a schematic structural diagram of a system chip according to an embodiment of the present application. The system chip 800 of FIG. 11 includes an input interface 801, an output interface 802, at least one processor 803, and a memory 804. The input interface 801, the output interface 802, the processor 803, and the memory 804 are interconnected by an internal connection path. . The processor 803 is configured to execute code in the memory 804.

Alternatively, when the code is executed, the processor 803 can implement a method performed by the terminal device in the method embodiment. For the sake of brevity, it will not be repeated here.

Alternatively, when the code is executed, the processor 803 can implement a method performed by a network device in a method embodiment. For the sake of brevity, it will not be repeated here.

It should be understood that the size of the serial numbers of the above processes does not imply in various embodiments of the present invention. The order of execution, the order of execution of each process should be determined by its function and internal logic, and should not be construed as limiting the implementation of the embodiments of the present invention.

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 for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present 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 may be Integrate 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 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.

This functionality, if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method in accordance with various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, and a read-only memory (Read-Only Memory, abbreviated "ROM"), random access memory ("RAM"), disk or optical disk, and other media that can store program code.

The above is only a specific embodiment of the present invention, but the scope of protection of the embodiments of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the embodiments of the present invention. All should be covered within the scope of protection of the invention for personal gain. Therefore, the scope of protection of the embodiments of the present invention should be determined by the scope of the claims.

Claims

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

Receiving, by the terminal device, first indication information sent by the network device, where the first indication information indicates a first time-frequency resource used for transmitting the target channel;

The terminal device detects a target reference signal on a specific time-frequency resource in the first time-frequency resource;

The terminal device receives the target channel according to the detection result of the target reference signal.
The method of claim 1 wherein said detection result comprises at least one of the following:

Not detecting the target reference signal on the specific time-frequency resource;

Detecting the target reference signal on the specific time-frequency resource;

Detecting configuration information of the target reference signal.
The method according to claim 2, wherein the configuration information comprises information of the specific time-frequency resource or sequence information of the target reference signal.
The method according to claim 2 or 3, wherein the specific time-frequency resource includes at least one symbol in the time domain, and all the frequencies in the first time-frequency resource are occupied in the at least one symbol. Domain resource or part of the frequency domain resource.
The method according to claim 4, wherein the specific time-frequency resource occupies the at least one symbol if the frequency domain width of the first time-frequency resource is less than or equal to a preset frequency threshold. All frequency domain resources in the first time-frequency resource; or

If the frequency domain width of the first time-frequency resource is greater than the preset frequency threshold, the specific time-frequency resource occupies part of the frequency-domain resources in the first time-frequency resource in the at least one symbol.
The method according to any one of claims 1 to 5, wherein before the detecting, by the terminal device, the target reference signal in the first time-frequency resource, the method further comprises:

The terminal device receives the second indication information that is sent by the network device, where the second indication information is used to indicate that the terminal device detects the target reference signal on the first time-frequency resource.
The method according to any one of claims 1 to 6, wherein before the detecting, by the terminal device, the target reference signal in the first time-frequency resource, the method further comprises:

The terminal device receives third indication information that is sent by the network device, where the third indication information includes configuration information of at least one reference signal, and the configuration information of the at least one reference signal includes configuration information of the target reference signal.
The method according to any one of claims 1 to 7, wherein the receiving, by the terminal device, the target channel according to the detection result of the target reference signal comprises:

Determining, by the terminal device, a resource allocation situation of the first time-frequency resource according to the detection result of the target reference signal;

The terminal device receives the target channel according to a resource allocation situation of the first time-frequency resource.
The method according to claim 8, wherein the resource allocation situation of the first time-frequency resource comprises at least one of the following:

Whether the first time-frequency resource includes time-frequency resources for transmitting other channels or signals, and/or reserved resources;

Information for transmitting time-frequency resources of other channels or signals in the first time-frequency resource, and/or information of reserved resources;

Information for transmitting a first symbol of the target channel in the first time-frequency resource.
The method according to claim 8 or 9, wherein the terminal device determines the resource allocation of the first time-frequency resource according to the detection result of the target reference signal, including:

If the terminal device does not detect the target reference signal in the specific time-frequency resource, determining that the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or pre- Keep resources.
The method according to claim 8 or 9, wherein the terminal device determines the resource allocation of the first time-frequency resource according to the detected detection result of the target reference signal, including:

If the sequence used by the terminal device to detect the target reference signal is different from the sequence of the pre-reference signal, or the coverage code used by the target reference signal is different from the coverage code of the pre-reference signal And determining that the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserved resources.
The method according to claim 8 or 9, wherein the terminal device determines the resource allocation of the first time-frequency resource according to the detected detection result of the target reference signal, including:

Determining, by the terminal device, the transmission information of the first time-frequency resource according to the detected configuration information of the target reference signal and the correspondence between the reference signal configuration information and the time-frequency resource The time-frequency resources of his channel or signal, and/or reserved resources.
The method according to claim 8 or 9, wherein the terminal device determines the resource allocation of the first time-frequency resource according to the detected configuration information of the target reference signal, including:

Determining, by the terminal device, the first symbol used to transmit the target channel in the first time-frequency resource according to the detected configuration information of the target reference signal and the correspondence between the reference signal configuration information and the symbol position .
The method according to any one of claims 1 to 13, wherein the target reference signal is transmitted through M antenna ports, and the target channel is transmitted through N antenna ports, wherein N is greater than or equal to M.
The method according to any one of claims 1 to 14, wherein the terminal device determines that the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or Reserving resources, the method further includes:

If the terminal device fails to decode the target channel, the terminal device prohibits storing information carried by the target channel.
The method according to any one of claims 1 to 14, wherein the method further comprises:

If the terminal device fails to decode the target channel, the terminal device stores all or part of valid information carried by the target channel, where the valid information includes the first time-frequency resource used in the transmission station. Information about the time-frequency resources of the target channel.
A method of transmitting a reference signal, the method comprising:

The network device determines a resource allocation condition of the first time-frequency resource used for transmitting the target channel;

Determining, by the network device, whether to send the target reference signal and/or the configuration information of the target reference signal to the terminal device according to the allocation of the first time-frequency resource;

And if the network device determines to send the target reference signal to the terminal device, sending the target reference signal to the terminal device on a specific time-frequency resource in the first time-frequency resource;

The network device sends a target channel to the terminal device on the first time-frequency resource, and first indication information used to indicate the first time-frequency resource.
The method according to claim 17, wherein the configuration information comprises information of the specific time-frequency resource or sequence information of the target reference signal.
Method according to claim 17 or 18, wherein said specific time frequency The source includes at least one symbol in the time domain, and occupies all frequency domain resources or partial frequency domain resources in the first time-frequency resource in the at least one symbol.
The method according to claim 19, wherein the specific time-frequency resource occupies the at least one symbol if the frequency domain width of the first time-frequency resource is less than or equal to a preset frequency threshold. All frequency domain resources in the first time-frequency resource; or

If the frequency domain width of the first time-frequency resource is greater than the preset frequency threshold, the specific time-frequency resource occupies part of the frequency-domain resources in the first time-frequency resource in the at least one symbol.
The method according to any one of claims 17 to 20, wherein the method further comprises:

The network device sends the second indication information to the terminal device, where the second indication information is used to indicate that the terminal device detects the target reference signal on the first time-frequency resource.
The method according to any one of claims 17 to 21, wherein the method further comprises:

The network device sends third indication information to the terminal device, where the third indication information includes configuration information of at least one reference signal, and the configuration information of the at least one reference signal includes configuration information of the target reference signal.
The method according to any one of claims 17 to 22, wherein the resource allocation of the first time-frequency resource comprises at least one of the following:

Whether the first time-frequency resource includes time-frequency resources for transmitting other channels or signals, and/or reserved resources;

Information in the first time-frequency resource for transmitting time-frequency resources of other channels or signals, and/or reserved resources;

Information for transmitting a first symbol of the target channel in the first time-frequency resource.
The method according to any one of claims 17 to 23, wherein the network device determines whether to transmit a target reference signal and/or the target to the terminal device according to the allocation of the first time-frequency resource. Reference signal configuration information, including:

If the first time-frequency resource does not include time-frequency resources for transmitting other channels or signals, and/or reserved resources, the network device determines a specific time-frequency resource in the first time-frequency resource. Sending the target reference signal to the terminal device.
The method according to any one of claims 17 to 23, wherein the network device determines whether to send a target parameter to the terminal device according to the allocation of the first time-frequency resource. The configuration information of the test signal and/or the target reference signal includes:

If the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserved resources, the network device determines a sequence and a pre-reference signal used by the target reference signal. The sequence is different, or the cover code used by the target reference signal is different from the cover code of the pre-reference signal.
The method according to any one of claims 17 to 23, wherein the network device determines whether to transmit a target reference signal and/or the target to the terminal device according to the allocation of the first time-frequency resource. Reference signal configuration information, including:

Determining, by the network device, the target reference according to a time-frequency resource for transmitting another channel or signal, and/or a reserved resource, and a corresponding relationship between a time-frequency resource and a reference signal configuration in the first time-frequency resource. Signal configuration information.
The method according to any one of claims 17 to 23, wherein the network device determines whether to transmit a target reference signal and/or the target to the terminal device according to the allocation of the first time-frequency resource. Reference signal configuration information, including:

And determining, by the network device, configuration information of the target reference signal according to a first symbol used to transmit the target channel in the first time-frequency resource, and a correspondence between a symbol position and reference signal configuration information.
The method according to any one of claims 17 to 27, wherein the target reference signal is transmitted through M antenna ports, and the target channel is transmitted through N antenna ports, wherein N is less than or equal to M.
A terminal device, the terminal device includes:

a receiving unit, configured to receive first indication information sent by the network device, where the first indication information indicates a first time-frequency resource used for transmitting the target channel;

a detecting unit, configured to detect a target reference signal on a specific time-frequency resource in the first time-frequency resource;

The receiving unit is further configured to receive the target channel according to the detection result of the target reference signal detected by the detecting unit.
The terminal device according to claim 29, wherein the detection result comprises at least one of the following:

Not detecting the target reference signal on the specific time-frequency resource;

Detecting the target reference signal on the specific time-frequency resource;

Detecting configuration information of the target reference signal.
The terminal device according to claim 30, wherein the configuration information comprises information of the specific time-frequency resource or sequence information of the target reference signal.
The terminal device according to claim 30 or 31, wherein the specific time-frequency resource includes at least one symbol in a time domain, and all of the first time-frequency resources are occupied in the at least one symbol. Frequency domain resources or some frequency domain resources.
The terminal device according to claim 32, wherein if the frequency domain width of the first time-frequency resource is less than or equal to a preset frequency threshold, the specific time-frequency resource occupies within the at least one symbol All of the frequency domain resources in the first time-frequency resource; or

If the frequency domain width of the first time-frequency resource is greater than the preset frequency threshold, the specific time-frequency resource occupies part of the frequency-domain resources in the first time-frequency resource in the at least one symbol.
The terminal device according to any one of claims 29 to 33, wherein the receiving unit is further configured to:

Before detecting the target reference signal in the first time-frequency resource, receiving second indication information sent by the network device, where the second indication information is used to indicate that the terminal device detects on the first time-frequency resource The target reference signal.
The terminal device according to any one of claims 29 to 34, wherein the receiving unit is further configured to:

Before detecting the target reference signal in the first time-frequency resource, receiving third indication information sent by the network device, where the third indication information includes configuration information of at least one reference signal, and configuration of the at least one reference signal The information includes configuration information of the target reference signal.
The terminal device according to any one of claims 29 to 35, wherein the detecting unit is specifically configured to:

Determining, according to the detection result of the target reference signal, a resource allocation situation of the first time-frequency resource;

Receiving the target channel according to a resource allocation situation of the first time-frequency resource.
The terminal device according to claim 36, wherein the resource allocation situation of the first time-frequency resource comprises at least one of the following:

Whether the first time-frequency resource includes time-frequency resources for transmitting other channels or signals, and/or reserved resources;

Information in the first time-frequency resource for transmitting time-frequency resources of other channels or signals, and / or reserved resource information;

Information for transmitting a first symbol of the target channel in the first time-frequency resource.
The terminal device according to claim 36 or 37, wherein the detecting unit is specifically configured to:

If the target reference signal is not detected in the specific time-frequency resource, determining that the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserved resources.
The terminal device according to claim 36 or 37, wherein the detecting unit is specifically configured to:

If the detected sequence of the target reference signal is different from the sequence of the pre-reference signal, or the cover code used by the target reference signal is different from the cover code of the pre-reference signal, The first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserved resources.
The terminal device according to claim 36 or 37, wherein the detecting unit is specifically configured to:

Determining time-frequency resources for transmitting other channels or signals in the first time-frequency resource according to the detected configuration information of the target reference signal and the correspondence between the reference signal configuration information and the time-frequency resource, and/or Or reserve resources.
The terminal device according to claim 36 or 37, wherein the detecting unit is specifically configured to:

And determining, according to the detected configuration information of the target reference signal, and the correspondence between the reference signal configuration information and the symbol position, the first symbol in the first time-frequency resource for transmitting the target channel.
The terminal device according to any one of claims 29 to 41, wherein the target reference signal is transmitted through M antenna ports, and the target channel is transmitted through N antenna ports, Where N is greater than or equal to M.
The terminal device according to any one of claims 29 to 42, wherein if the terminal device determines that the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or Or reserve a resource, the terminal device further includes a storage unit, configured to:

If the decoding of the target channel fails, the information carried by the target channel is prohibited from being stored.
The terminal device according to any one of claims 29 to 42, wherein the terminal device further comprises a storage unit, configured to:

If the decoding of the target channel fails, storing all or part of valid information carried by the target channel, where the valid information includes time-frequency resources used for transmitting the target channel in the first time-frequency resource. information.
A network device for transmitting a reference signal, where the network device includes:

a determining unit, configured to determine a resource allocation situation of the first time-frequency resource used for transmitting the target channel;

The determining unit is further configured to: determine, according to the allocation condition of the first time-frequency resource, whether to send configuration information of the target reference signal and/or the target reference signal to the terminal device;

a sending unit, if the determining unit determines to send the target reference signal to the terminal device, sending the target reference signal to the terminal device on a specific time-frequency resource in the first time-frequency resource;

The sending unit is further configured to send a target channel to the terminal device on the first time-frequency resource, and first indication information used to indicate the first time-frequency resource.
The network device according to claim 45, wherein the configuration information comprises information of the specific time-frequency resource or sequence information of the target reference signal.
The network device according to claim 45 or 46, wherein the specific time-frequency resource includes at least one symbol in the time domain, and all of the first time-frequency resources are occupied in the at least one symbol. Frequency domain resources or some frequency domain resources.
The network device according to claim 47, wherein if the frequency domain width of the first time-frequency resource is less than or equal to a preset frequency threshold, the specific time-frequency resource occupies within the at least one symbol All of the frequency domain resources in the first time-frequency resource; or

If the frequency domain width of the first time-frequency resource is greater than the preset frequency threshold, the specific time-frequency resource occupies part of the frequency-domain resources in the first time-frequency resource in the at least one symbol.
The network device according to any one of claims 45 to 48, wherein the transmitting unit is further configured to:

Sending the second indication information to the terminal device, where the second indication information is used to indicate that the terminal device detects the target reference signal on the first time-frequency resource.
The network device according to any one of claims 45 to 49, wherein the transmitting unit is further configured to:

Transmitting, to the terminal device, third indication information, where the third indication information includes configuration information of at least one reference signal, and configuration information of the at least one reference signal includes the target reference signal Number configuration information.
The network device according to any one of claims 45 to 50, wherein the resource allocation situation of the first time-frequency resource comprises at least one of the following:

Whether the first time-frequency resource includes time-frequency resources for transmitting other channels or signals, and/or reserved resources;

Information in the first time-frequency resource for transmitting time-frequency resources of other channels or signals, and/or reserved resources;

Information for transmitting a first symbol of the target channel in the first time-frequency resource.
The network device according to any one of claims 45 to 51, wherein the determining unit is specifically configured to:

Determining, when the first time-frequency resource does not include time-frequency resources for transmitting other channels or signals, and/or reserving resources, determining, on the specific time-frequency resource in the first time-frequency resource The terminal device transmits the target reference signal.
The network device according to any one of claims 45 to 51, wherein the determining unit is specifically configured to:

If the first time-frequency resource further includes time-frequency resources for transmitting other channels or signals, and/or reserved resources, determining that the sequence used by the target reference signal is different from the sequence of the pre-reference signal Or the cover code used by the target reference signal is different from the cover code of the pre-reference signal.
The network device according to any one of claims 45 to 51, wherein the determining unit is specifically configured to:

Determining configuration information of the target reference signal according to a time-frequency resource used for transmitting other channels or signals in the first time-frequency resource, and/or a reserved resource, and a corresponding relationship between a time-frequency resource and a reference signal configuration. .
The network device according to any one of claims 45 to 51, wherein the determining unit is specifically configured to:

Determining configuration information of the target reference signal according to a first symbol of the first time-frequency resource for transmitting the target channel, and a correspondence between a symbol position and reference signal configuration information.
The network device according to any one of claims 45 to 55, wherein the target reference signal is transmitted through M antenna ports, and the target channel is through N The antenna port is transmitted, where N is less than or equal to M.