CN108282323B - Receiving node, sending node and communication method - Google Patents

Abstract

An embodiment of the present application provides a communication method. The method includes: a sending node sends detection indication information, where the detection indication information is used to indicate detection control information; the sending node sends the control information; wherein the control information includes time domain information or frequency domain information of reserved resources. The sending node instructs the receiving node to detect the reserved resources, which avoids the need for the receiving node to detect whether there is information about the reserved resources in each blind detection, reduces the complexity of the receiving node's blind detection, and also reduces the receiving node's energy consumption. In addition, compared with the scheme in which the sending node periodically broadcasts the information of the reserved resources, the sending node can timely notify the receiving node to detect the reserved resources, and thus can flexibly configure the reserved resources without being limited by the broadcast period. .

Description

Receiving node, sending node and communication method

technical field

The present application relates to communication technologies, in particular to a receiving node, a sending node and a communication method.

Background technique

With technical solutions, it is considered that some time-frequency resources can be reserved in the communication system for other purposes. The reserved resources are referred to as reserved resources or blank resources for short. The reserved resources may occupy one or more symbols in the time domain, and may occupy all or part of the bandwidth in the frequency domain.

How to conveniently detect reserved resources is a problem to be solved.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a receiving node, a sending node, and a communication method, so as to reduce the complexity of blind detection.

In a first aspect, an embodiment of the present application provides a communication method. The method describes the mechanism by which the sending node implements the technical solution of the present application. The method includes: a sending node sends detection indication information, where the detection indication information is used to indicate detection control information; the sending node sends the control information; wherein the control information includes time domain information or frequency domain information of reserved resources.

The sending node instructs the receiving node to detect the reserved resources, which avoids the need for the receiving node to detect whether there is information about the reserved resources in each blind detection, reduces the complexity of the receiving node's blind detection, and also reduces the receiving node's energy consumption. In addition, compared with the scheme in which the sending node periodically broadcasts the information of the reserved resources, the sending node can timely notify the receiving node to detect the reserved resources, and thus can flexibly configure the reserved resources without being limited by the broadcast period. .

In a second aspect, the embodiments of the present application provide another communication method. The method describes the mechanism by which the receiving node implements the technical solution of the present application. The method includes: a receiving node receives detection indication information, where the detection indication information is used to indicate detection control information; the receiving node detects the control information; wherein the control information includes time domain information or frequency domain information of reserved resources.

The receiving node detects the reserved resources according to the instructions of the sending node, which avoids the need for the receiving node to detect whether there is information about reserved resources in each blind detection, reduces the complexity of the blind detection of the receiving node, and also reduces the receiving The energy consumption of the node. In addition, compared with the scheme in which the receiving node periodically receives the broadcasted reserved resource information, the receiving node can detect the reserved resources without being limited by the broadcast period, so that the network can configure the reserved resources more flexibly.

In a third aspect, the embodiments of the present application provide another communication method. The method describes the mechanism of the receiving node triggering the detection of control information by itself. The method includes: a receiving node detects control information; the control information includes time domain information or frequency domain information of reserved resources, and the reserved resources are located in a time interval corresponding to a sounding reference signal (SRS, sounding reference signal); the receiving node The SRS is sent within the time interval, and the SRS does not occupy the reserved resource.

With this method, the receiving node can detect by itself whether there are reserved resources in the time interval that the SRS to be sent will occupy before sending the SRS, so as to avoid occupying the reserved resources when sending the SRS. In addition, it is avoided that the receiving node needs to detect whether there is information of reserved resources in each blind detection, the complexity of the blind detection of the receiving node is reduced, and the energy consumption of the receiving node can also be reduced.

In a fourth aspect, an embodiment of the present application provides a sending node. The sending node can be used to implement the communication method in the first aspect.

As a first optional design, the sending node includes: a processor and a transceiver; the processor is configured to send detection indication information and send control information through the transceiver; wherein the detection indication information is used to instruct to detect the control information , the control information includes time domain information or frequency domain information of reserved resources.

As a second optional design, the sending node includes: a processor and a memory; the memory stores relevant program instructions for implementing the function of the sending node in the communication method of the first aspect; the processor is configured to execute the above program instructions to realize the first Aspects of communication methods.

In a fifth aspect, an embodiment of the present application provides a receiving node. The receiving node may be used to implement the communication method in the second aspect.

As a first optional design, the receiving node includes: a processor and a transceiver; the processor is used to receive detection indication information through the transceiver; the processor is used to detect control information through the transceiver; wherein the detection indication information is used In order to instruct to detect the control information, the control information includes time domain information or frequency domain information of reserved resources.

As a second optional design, the receiving node includes: a processor and a memory; the memory stores relevant program instructions for implementing the function of the receiving node in the communication method of the second aspect; the processor is configured to execute the above program instructions to implement the second Aspects of communication methods.

In a sixth aspect, an embodiment of the present application provides a receiving node. The sending node can be used to implement the communication method in the third aspect.

As a first optional design, the receiving node includes: a processor and a transceiver; the processor is configured to: detect control information through the transceiver; the control information includes time domain information or frequency domain information of reserved resources, the The reserved resource is located in the time interval corresponding to the SRS; the SRS is sent by the transceiver within the time interval; wherein, the SRS does not occupy the reserved resource.

As a second optional design, the receiving node includes: a processor and a memory; the memory stores relevant program instructions for implementing the function of the receiving node in the communication method of the third aspect; the processor is configured to execute the above program instructions to implement the third Aspects of communication methods.

In a seventh aspect, an embodiment of the present application provides a computer program product, where the program includes relevant instructions for implementing the communication method of the first aspect.

In an eighth aspect, an embodiment of the present application provides another computer program product, where the program includes relevant instructions for implementing the communication method of the second aspect.

In a ninth aspect, an embodiment of the present application provides another computer program product, where the program includes relevant instructions for implementing the communication method of the third aspect.

In a tenth aspect, an embodiment of the present application provides a computer-readable storage medium, where the storage medium stores instructions of the computer program product of the seventh aspect.

In an eleventh aspect, an embodiment of the present application provides another computer-readable storage medium, where the storage medium stores instructions of the computer program product of the eighth aspect.

In a twelfth aspect, the embodiments of the present application provide another computer-readable storage medium, where the storage medium stores instructions of the computer program product of the ninth aspect.

In a thirteenth aspect, an embodiment of the present application provides a communication system, including a sending node according to one of the above aspects and a receiving node according to one of the above aspects.

In a fourteenth aspect, an embodiment of the present application provides a communication method, including: a sending node sends at least one reserved resource pattern; the sending node sends control information, where the control information includes a first indication, and the first indication uses is used to indicate one reserved resource pattern in the at least one reserved resource pattern; wherein, the reserved resource pattern includes at least one of time domain information and frequency domain information of the reserved resource.

In a fifteenth aspect, an embodiment of the present application provides a communication method, including: a receiving node receiving at least one reserved resource pattern; the receiving node receiving control information, the control information including a first indication, the first indication using is used to indicate one reserved resource pattern in the at least one reserved resource pattern; wherein, the reserved resource pattern includes at least one of time domain information and frequency domain information of the reserved resource.

In a sixteenth aspect, an embodiment of the present application provides a sending node, including: a processor and a transceiver; the processor is configured to send at least one reserved resource pattern through the transceiver; the processor is further configured to send at least one reserved resource pattern through the transceiver. the transceiver sends control information, the control information includes a first indication, and the first indication is used to indicate a reserved resource pattern in the at least one reserved resource pattern; wherein, the reserved resource pattern includes a reserved resource pattern. at least one of time domain information and frequency domain information of reserved resources.

In a seventeenth aspect, an embodiment of the present application provides a receiving node, including: a processor and a transceiver; the processor is configured to receive at least one reserved resource pattern through the transceiver; the processor is further configured to receive at least one reserved resource pattern through the transceiver; The transceiver receives control information, the control information includes a first indication, and the first indication is used to indicate a reserved resource pattern in the at least one reserved resource pattern; wherein the reserved resource pattern includes a reserved resource pattern. at least one of time domain information and frequency domain information of reserved resources.

As an optional design, in the above fourteenth to seventeenth aspects, the time domain information includes a period of the reserved resource and a time offset within the period; wherein the time offset is used for Indicates the time domain position of the reserved resource within the period.

Optionally, the time offset is represented by one or more of a system frame number, a subframe number, a time slot number, and a symbol number.

In an eighteenth aspect, an embodiment of the present application provides a computer program product, where the program includes relevant instructions for implementing the communication method of the fourteenth or fifteenth aspect.

In a nineteenth aspect, an embodiment of the present application provides a storage medium, where the storage medium stores instructions of the computer program product of the eighteenth aspect.

In a twentieth aspect, an embodiment of the present application provides a chip for executing program instructions to implement the method of any one of the foregoing aspects.

Optionally, in the above aspects, the control information may be downlink control information (DCI, downlink control information). DCI comes in a variety of formats. In implementation, the DCI of the existing format can be used as the control information carrying the reserved resource information in this application, or the DCI of a new format can be added to carry the reserved resource information. Using DCI to carry reserved resource information can utilize the existing DCI blind detection mechanism.

Optionally, in the above aspects, the cyclic redundancy check CRC bits of the control information are scrambled by using a radio network temporary identifier (RNTI, radio network temporary identifier). Optionally, the value of the RNTI is globally unique. By using the globally unique RNTI, the control information can be detected by all terminals within the coverage of the signal. Optionally, there may be multiple values of the RNTI, and the value of each RNTI corresponds to a group of terminals. By setting different RNTIs for terminals in different groups, the control information can be sent to terminals in a specific group.

Optionally, in the above aspects, the control information is transmitted in a common search space. The control information is transmitted through the common search space, which is convenient for terminal blind detection.

个比特位，该M为该时间区间所包括的时间单元的数量。Optionally, in the above aspects, the time domain information includes time domain starting position information of the reserved resource in the time interval corresponding to the control information, and the time domain starting position information occupies

bits, and M is the number of time units included in the time interval.

个比特位，该M为该控制信息对应的时间区间所包括的时间单元的数量。Optionally, in the above aspects, the time domain information includes duration information of the reserved resource, and the duration information occupies

bits, and M is the number of time units included in the time interval corresponding to the control information.

个比特位，该M为该时间区间所包括的时间单元的数量。Optionally, in the above aspects, the time domain information includes the time domain end position information of the reserved resource in the time interval corresponding to the control information, and the time domain end position information occupies

bits, and M is the number of time units included in the time interval.

Optionally, in the above aspects, the time domain information occupies M bits of the control information; wherein, the M is the number of time units included in the time interval corresponding to the control information; the M bits and The M time units included in the time interval are in one-to-one correspondence; the position of the time unit corresponding to the bit with the first value in the M bits in the time interval is the position of the reserved resource in the time interval .

Optionally, in the above aspects, the time unit is a symbol, or a mini-slot, or a time slot.

个比特位，该N为该频率区间所包括的频率单元的数量。Optionally, in the above aspects, the frequency domain information includes frequency domain starting position information of the reserved resource in the frequency interval corresponding to the control information, and the frequency domain starting position information occupies

bits, and N is the number of frequency units included in the frequency interval.

个比特位，该N为该控制信息对应的频率区间所包括的频率单元的数量。Optionally, in the above aspects, the frequency domain information includes frequency domain length information of the reserved resource; the frequency domain length information occupies

number of bits, and N is the number of frequency units included in the frequency interval corresponding to the control information.

个比特位，该N为该频率区间所包括的频率单元的数量。Optionally, in the above aspects, the frequency domain information includes frequency domain end position information of the reserved resource in the frequency interval corresponding to the control information; the frequency domain end position information occupies

bits, and N is the number of frequency units included in the frequency interval.

Optionally, in the above aspects, the frequency domain information occupies N bits of the control information; wherein, the N is the number of frequency units included in the frequency interval corresponding to the control information; the N bits and The N frequency units included in the frequency interval are in one-to-one correspondence; the position of the frequency unit corresponding to the bit with the second value in the N bits in the frequency interval is the position of the reserved resource in the frequency interval .

Optionally, in the above aspects, the frequency unit is a subcarrier or a subcarrier group composed of multiple subcarriers. A subcarrier group composed of a specific number of subcarriers is associated with different concepts of time-frequency resources in the frequency domain. For example, a physical resource block (PRB, physical resource block) or a resource block (RB, resource block) includes 12 subcarriers in the frequency domain.

Optionally, in the above aspects, the N may be indicated by signaling. For example, the signaling may be high-level signaling; the high-level signaling may be radio resource control (RRC, radio resource control) signaling, and the RRC signaling may be RRC dedicated signaling, that is, terminal-specific RRC signaling. The broadcast signaling may be system information block (SIB, system information block) signaling, and master information block (MIB, master inforamtion block) signaling.

Optionally, in the above aspects, the control information further includes information indicating the N.

Optionally, in the above aspects, the bits occupied by the time domain information or the bits occupied by the frequency domain information are the bits occupied by the carrier indicator field in the control information or the control information. The part of the bits occupied by the medium carrier indication.

Optionally, in the above aspects, the bits occupied by the time domain information or the bits occupied by the frequency domain information are the bits occupied by the modulation and coding scheme (modulation and coding scheme) field in the control information. Or a part of the bits occupied by the modulation and coding scheme in the control information.

Optionally, in the above aspects, the control information is transmitted through a first channel, the code rate of the first channel is 1/3 the code rate, and the modulation mode is quadrature phase shift keying (QPSK, quadrature phase shift keying). keying).

Optionally, in the above aspects, the detection indication information may be DCI for downlink assignment (downlink assignment). Through the DCI for downlink allocation, the scheduled terminal can detect the reserved resource, while the non-scheduled terminal does not need to detect the reserved resource.

Optionally, in the above aspects, the detection indication information may be detection time information. The detection time information is used to indicate the timing of detecting the above-mentioned control information. As an example, the detection time information includes a detection period and a candidate position within the detection period, where the candidate position is used to indicate a time domain position within the detection period. There can be multiple candidate positions in the detection period. After receiving the detection time information, the terminal may detect the above-mentioned control information at the corresponding candidate position according to the detection period.

In the embodiment of the present application, the sending node instructs the receiving node to perform the detection of reserved resources, which avoids the need for the receiving node to detect whether there is information about reserved resources in each blind detection, reduces the complexity of the blind detection of the receiving node, and can also Reduce the energy consumption of the receiving node. In addition, compared with the scheme in which the sending node periodically broadcasts the information of the reserved resources, the sending node can timely notify the receiving node to detect the reserved resources, and thus can flexibly configure the reserved resources without being limited by the broadcast period. .

Description of drawings

In order to illustrate the technical solutions of the present application more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments.

1 is a simplified schematic diagram of a wireless communication system;

2 is a simplified schematic diagram of a terminal structure;

3 is a simplified schematic diagram of a structure of a base station;

4 is a schematic flowchart of a communication method;

5 is a time-frequency schematic diagram of a channel;

6 is a schematic diagram of a reserved resource;

FIG. 7 is a time-domain schematic diagram of a reserved resource.

Detailed ways

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

Some terms and conventions in this application are first explained below.

In this application, the information used to indicate the distribution of reserved resources in the time domain may be referred to as time domain information of reserved resources, and the information used to indicate the distribution of reserved resources in the frequency domain may be referred to as reserved resources frequency domain information. Both the time domain information and the frequency domain information of the reserved resources may be referred to as reserved resource configuration information.

In this application, the time interval corresponding to the control information refers to a scheduling unit in the time domain. For example, the time interval may be a transmission time interval (TTI, transmission time interval), a subframe (subframe), a time slot (timeslot), or a mini time slot (mini time slot). Optionally, a time interval is composed of multiple time units, and the time units may be TTIs, time slots, mini-slots, subframes, and the like. For example, the time interval can be multiple TTIs, multiple time slots, multiple mini-slots, multiple subframes, and so on. The number of symbols included in the mini-slot is smaller than the number of symbols included in the slot.

In this application, the duration of the reserved resources refers to the size of the time domain occupied by the reserved resources. Duration can be expressed in different units of time measurement. For example: the duration is equal to 5 slots, the duration is equal to 5 symbols, and the duration is equal to 0.2 milliseconds. Sometimes the duration can also be referred to as the time domain length, etc.

In this application, the position on the time domain has different expressions according to the measurement units of different time units. For example, the 5th symbol in the subframe and the 2nd symbol in the slot.

In this application, the frequency interval corresponding to the control information refers to a scheduling unit in the frequency domain. For example, the size of the frequency interval may be the size of the frequency domain corresponding to two PRBs, or the size of the frequency domain corresponding to one RB. A frequency interval consists of multiple frequency units. The size of the frequency unit can be made as required. For example, one subcarrier may be one frequency unit, or 12 subcarriers may be one frequency unit. Sometimes a specific time-frequency resource can also be used to represent a frequency domain unit, for example, a frequency unit is a PBR, and a frequency domain corresponding to one PRB is a frequency unit. For example, a PBR includes 12 subcarriers in the frequency domain, and 12 subcarriers can be regarded as a frequency unit, that is, a frequency unit can be a subcarrier group composed of multiple subcarriers.

In this application, the frequency domain length of the reserved resources refers to the size of the frequency domain occupied by the reserved resources. The frequency domain length can be expressed in different frequency domain measurement units. For example: the frequency domain length is equal to 12 subcarriers. Sometimes a specific time-frequency resource can also be used to represent the length of the frequency domain, such as PRB, RB, mini PRB, and mini RB. For example, the length of the frequency domain is equal to one PRB, which means that the length of the frequency domain is equal to the size of the frequency domain corresponding to one PRB. The frequency domain size of mini PRB or mini RB is the same as that of PRB or RB, and the time domain size is one mini slot.

In this application, the position in the frequency domain has different expressions according to different measurement units of different frequency units. For example, the 20th PRB, the second subcarrier.

1 is a simplified schematic diagram of a wireless communication system. The communication methods provided in the embodiments of the present application are applicable to the wireless communication system. As shown in FIG. 1 , the communication system includes a terminal T100 and a base station B200. In an actual network, there may be multiple terminals and one base station to communicate within the coverage of the base station signal. The base station B200 can be regarded as a sending node in this application, and the terminal T100 can be regarded as a receiving node in this application. The terminal T100 and the base station B200 may communicate through wireless technology. The wireless communication system may be a 4G communication system, such as an LTE (long term evolution) system, or may be a 5G communication system, such as an NR (new radio, new air interface) system, or a fusion of multiple communication technologies A communication system (such as a communication system that integrates LTE technology and NR technology).

The terminal T100 is a device with a wireless communication function, and may be a handheld device with a wireless communication function, a vehicle-mounted device, a wearable device, a computing device, or other processing device connected to a wireless modem. Terminals may be called by different names in different networks, for example: User Equipment, Mobile Station, Subscriber Unit, Station, Cell Phone, Personal Digital Assistant, Wireless Modem, Wireless Communication Device, Handheld Device, Laptop, Cordless Phone, Wireless local loop station, etc.

A schematic structural diagram of the terminal T100 may be shown in FIG. 2 . For convenience of explanation, FIG. 2 only shows the main components of the terminal. As shown in FIG. 2 , the terminal T100 includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used for processing communication protocols and communication data, as well as controlling the entire user equipment, executing software programs, and processing data of the software programs. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. Some kinds of terminals do not have input and output devices.

When the terminal is powered on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves. When data is sent to the user equipment, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.

Those skilled in the art can understand that, for the convenience of description, FIG. 2 only shows one memory and a processor. In an actual user equipment, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc., which is not limited in this embodiment of the present application.

As an optional implementation manner, the processor may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data, and the central processing unit is mainly used to control the entire user equipment, execute A software program that processes data from the software program. The processor in FIG. 2 integrates the functions of the baseband processor and the central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit may also be independent processors, interconnected by technologies such as a bus. Those skilled in the art can understand that a terminal may include multiple baseband processors to adapt to different network standards. Those skilled in the art can understand that a terminal may include multiple central processing units to enhance its processing capability.

Those skilled in the art can understand that various components of the terminal may be connected through various buses.

Those skilled in the art can understand that the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.

Those skilled in the art can understand that the central processing unit may also be expressed as a central processing circuit or a central processing chip.

Those skilled in the art can understand that the function of processing the communication protocol and communication data can be built into the processor or stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

Exemplarily, in this embodiment of the present application, an antenna and a radio frequency circuit with a transceiver function may be regarded as a transceiver unit of the terminal, and a processor with a processing function may be regarded as a processing unit of the terminal. As shown in FIG. 2 , the terminal T100 includes a transceiver unit 101 and a processing unit 102 . The transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, or the like. The processing unit may also be referred to as a processor, a processing single board, a processing module, a processing device, and the like. Optionally, the device for implementing the receiving function in the transceiver unit 101 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 101 may be regarded as a transmitting unit, that is, the transceiver unit 101 includes a receiving unit and a transmitting unit. Exemplarily, the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, and the like, and the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, or the like.

The base station B200, which may also be referred to as a base station device, is a device deployed in a radio access network to provide a wireless communication function. For example, a base station in an LTE network is called an evolved NodeB (evolved NodeB, eNB or eNodeB), and a base station in an NR network is called a TRP (transmission reception point, transmission reception point) or gNB. The structure of the base station B200 is shown in FIG. 3 . The base station B200 shown in FIG. 3 may be a split base station. For example, the left side of FIG. 3 shows a distributed base station including an antenna (antennas), a remote radio unit (RRU) and a baseband unit (BBU). , the base station shown in FIG. 3 may also be an integrated base station, such as a small cell (small cell) shown on the right in FIG. 3 . Generally speaking, the base station includes part 201 and part 202 . The 201 part is mainly used for the transceiver of the radio frequency signal and the conversion of the radio frequency signal and the baseband signal; the 202 part is mainly used for the baseband processing and the control of the base station. The 201 part can generally be referred to as a transceiver unit, a transceiver, a transceiver circuit, a transceiver, and the like. Section 202 may generally be referred to as a processing unit. Usually the 202 part is the control center of the base station.

As shown in FIG. 3 , as an optional implementation manner, part 201 may include an antenna and a radio frequency unit, where the radio frequency unit is mainly used for radio frequency processing. Optionally, the device used for realizing the receiving function in part 201 may be regarded as a receiving unit, and the device used for realizing the sending function may be regarded as a sending unit, that is, part 201 includes a receiving unit and a sending unit. Exemplarily, the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, and the like, and the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, or the like.

As shown in FIG. 3 , as an optional implementation manner, part 202 may include one or more single boards, and each single board may include a processor and a memory, and the processor is used to read and execute a program in the memory to realize Baseband processing functions and control of base stations. If there are multiple boards, each board can be interconnected to increase processing capacity.

As another optional implementation, with the development of system-on-chip (English: System-on-chip, SoC for short) technology, the functions of part 202 and part 201 can be implemented by SoC technology, that is, by a base station function The chip is implemented. The base station function chip integrates a processor, a memory, an antenna and other devices. The program of the base station related functions is stored in the memory, and the processor executes the program to realize the related functions of the base station.

The communication method provided by the embodiment of the present application will be described below with reference to the terminal T100 and the base station B200. As shown in Figure 4:

S401: The base station B200 sends a synchronization signal and broadcast information.

As an optional implementation manner: the processor 202 of the base station B200 may be configured to send the synchronization signal and broadcast information through the transceiver 201 .

Optionally, the broadcast information carries information indicating the size of the frequency domain resources occupied by the reserved resources. For example, 001 carried in the broadcast information indicates that the frequency domain resources occupied by the reserved resources are 10 MHz. For another example, 110 carried in the broadcast information indicates that the frequency domain resources occupied by the reserved resources are the size of 7 RBs (resource blocks). Optionally, the broadcast information may carry the bandwidth information of the cell, and the bandwidth of the cell may be used as the size of the frequency domain resources occupied by the reserved resources. Table 1 is an example of bit representation of different bandwidths.

Table 1

Bandwidth (MHz) bit 5 000 10 001 15 010 20 011 40 100 80 101

S402: The terminal T100 accesses the base station B200.

As an optional implementation manner, the processor 102 of the terminal T100 may be configured to access the base station B200 through the transceiver 101 .

Optionally, if the size of the frequency domain resources occupied by the reserved resources changes, the terminal T100 may acquire updated information indicating the size of the frequency domain resources occupied by the reserved resources in broadcast information sent periodically.

S403: The base station B200 sends detection indication information.

As an optional implementation manner, the processor 202 of the base station B200 may be configured to send detection indication information through the transceiver 201 . The processor 102 of the terminal T100 may be configured to receive detection indication information through the transceiver 101 .

The detection indication information may be regarded as indication information for instructing the terminal T100 to detect control information including time domain information or frequency domain information of reserved resources (referred to as control information including reserved resource configuration information for short). The base station B200 may send the detection indication information by means of high-layer signaling, such as RRC (radio resource control, radio resource control) signaling. After receiving the detection indication information, the terminal T100 can start to detect the control information including the reserved resource configuration information, so as to prevent the terminal T100 from being in a state of blindly detecting the control information including the reserved resource configuration information, and it can also reduce the blind detection of the terminal. the complexity.

Optionally, the base station B200 may also send detection time information. The detection time information is used to instruct the terminal T100 to detect the timing of the control information including the reserved resource configuration information. For example, the detection time information is used to indicate that the detection is started after 1 slot of the detection time information is sent, or the detection is started after 10 symbols, and the detection is continued for 100 symbols. The detection time information itself can also be used as a kind of detection indication information.

As an optional design of the detection time information, the detection time information may include candidate positions, where the candidate positions are used to indicate control information including reserved resource configuration information (for example, DCI 1 in FIG. 4 , hereinafter referred to as DCI 1 includes The control information of the reserved resource configuration information) may appear in the time domain.

As an optional design of the detection time information, the detection time information may include a detection period and a candidate position within the detection period. Wherein, the candidate positions are used to indicate the possible time domain positions of DCI 1 in the detection period; the candidate positions in one detection period may be one or more, which are used to indicate when DCI 1 is in one or more of the detection periods. Domain location. The terminal T100 may detect the DCI 1 at the candidate position within the detection period according to the detection time information.

For example, the detection period is 30ms, and the candidate positions are the first time slot and the fifth time slot in the detection period. Those skilled in the art know that candidate positions can be expressed in a variety of ways. For example, the second subframe in the detection period, etc. is detected.

As an example, part S403 may be implemented by part S4031 or part S4032.

S4031: The base station B200 sends the RRC signaling to the terminal T100. The RRC signaling includes detection indication information. The detection indication information may be represented by the original bits of the RRC signaling, or new bits may be added in the RRC signaling to represent the detection indication information.

S4032: The base station B200 sends the DCI (downlink control information, downlink control information) for downlink assignment (downlink assignment) to the terminal T100.

Optionally, the original bits used for the DCI in the downlink allocation may be used to represent the detection indication information, or new bits may be added in the downlink allocation to represent the detection indication information. The DCI generally used for downlink allocation includes a modulation and coding scheme (MCS, modulation and coding scheme), a hybrid automatic repeat request (HARQ, hybrid automatic repeat request) parameter, and the like.

Optionally, the DCI itself used for downlink allocation may be used as the detection indication information. When the terminal receives the DCI for downlink allocation, it can be considered that the terminal has received the detection indication information, that is, the terminal can detect the control information including the reserved resource configuration information after receiving the control information for the downlink allocation.

Using the DCI for downlink allocation to carry the detection indication information or itself as the detection indication information enables the scheduled terminal to perform blind detection of the control information including the reserved resource configuration information, while the unscheduled terminal does not need to perform blind detection of the control information including the reserved resource configuration information. Control information of reserved resource configuration information. Such a mechanism is more flexible, and the terminal is more power-saving.

S404: The terminal T100 detects control information including configuration information of reserved resources.

As an optional implementation manner, the processor 102 of the terminal T100 may be configured to detect the control information through the transceiver 101 .

After receiving the detection indication information, the terminal T100 may start to detect the control information including the configuration information of the reserved resources, or may detect the control information including the configuration information of the reserved resources in a corresponding time interval according to the detection time information. Optionally, the control information may be DCI.

S405: The base station B200 generates downlink control information (downlink control information, DCI) 1 . The DCI 1 includes configuration information of reserved resources, that is, time domain information or frequency domain information of the reserved resources.

There is no specific timing relationship between S404 and S405.

As an optional implementation manner, the processor 202 of the base station B200 may be configured to generate the DCI 1 .

Downlink control information is a type of control information. Downlink control information is sent on the physical downlink control channel, and the downlink control information can be used to transmit uplink/downlink scheduling information, power control command words and other content. Optionally, the configuration information of the reserved resource may be carried through other control information.

When there are reserved resources in the scheduling unit of the terminal, the base station B200 may carry the configuration information of the reserved resources in the DCI corresponding to the scheduling unit (ie, the time interval). DCI comes in a variety of formats. In implementation, the DCI of the existing format can be used as the control information carrying the reserved resource information in this application, or the DCI of a new format can be added to carry the reserved resource information. Using DCI to carry reserved resource information can utilize the existing DCI blind detection mechanism.

S406: The base station B200 scrambles the CRC bits of the DCI 1 by using the RNTI.

As an optional implementation manner, the processor 202 of the base station B200 may be configured to use the RNTI to scramble the CRC bits of the DCI 1.

The RNTI may be C-RNTI (cell radio network temporary identifier, cell radio network temporary identifier), or SI-RNTI (system information RNTI, system information RNTI), or a newly defined radio network temporary identifier R-RNTI. The R-RNTI is a cell-level RNTI, and the value of the identifier may be specified by a communication protocol or configured on the base station B200, which is not limited here. Optionally, the base station B200 may send the value of the RNTI to the terminal T100. For the process of CRC scrambling, please refer to the content about scrambling in Section 5.3.3.2 in the 36.212v14.1.1 version of the 3rd Generation Cooperation Organization standard. Optionally, the value of the RNTI is globally unique. By using the globally unique RNTI, the control information can be detected by all terminals within the coverage of the signal. Optionally, there may be multiple values of the RNTI, and the value of each RNTI corresponds to a group of terminals. By setting different RNTIs for terminals in different groups, and setting the same RNTI for terminals in the same group, the control information can be sent to terminals in a specific group. The base station may send the control information including the reserved resource configuration information to the group of terminals in a multicast manner.

Using the newly defined R-RNTI to perform CRC scrambling of DCI1 can enable the terminal to know that DCI1 carries time domain information or frequency domain information of reserved resources when successfully descrambling the CRC of DCI1 using R-RNTI. That is, the terminal can know that the control information is the control information carrying the reserved resource configuration information by successfully detecting the control information through the R-RNTI. This mechanism facilitates flexible configuration of reserved resources.

S407: The base station B200 sends DCI 1 to the terminal T100.

as an optional implementation. The processor 202 of the base station B200 may be configured to send the DCI 1 to the terminal T100 through the transceiver 201 .

The base station B200 may transmit DCI 1 in the common search area or may transmit DCI 1 in the dedicated search space of the terminal T100.

Optionally, the base station may send DCI 1 on a PDCCH (physical downlink control channel, physical downlink control channel) or may send DCI 1 on a new channel. The distribution of the new channel on the time-frequency resources can be as shown in FIG. 5 , the channel can use a 1/3 code rate, and the modulation mode is QPSK.

S408: The terminal T100 detects DCI 1.

As an optional implementation manner, the processor 102 of the terminal T100 may be configured to detect the DCI 1 through the transceiver 101 .

After detecting the DCI1, the terminal T100 can obtain the time domain information or the frequency domain information of the reserved resources carried in the DCI1. After obtaining the time domain information or frequency domain information of the reserved resource, the terminal T100 can know the position of the reserved resource in the time domain or the frequency domain, so the terminal T100 can avoid using the reserved resource to communicate with the base station B200.

For example, as shown in FIG. 6 , the time interval corresponding to DCI 1 includes 7 symbols (#0, #1...#7), and the corresponding frequency interval includes 8 subcarriers (#0, #1...#7). The symbols occupied by the reserved resources are #3 and #4, and the occupied subcarriers are #3, #4, #5, and #6. Time domain information may be carried in DCI 1 to indicate symbols #3 and #4 and/or frequency domain information may be carried to indicate subcarriers #3, #4, #5, and #6. When the time domain information of the reserved resources is specified by the communication standard, or pre-configured by the base station B200 for the terminal T100, the DCI 1 only needs to carry the frequency domain information of the reserved resources. Similarly, when the frequency domain information of the reserved resources is specified by the communication standard, or pre-configured by the base station B200 for the terminal T100, the DCI1 only needs to carry the time domain information of the reserved resources. After receiving the DCI 1, the terminal T100 can know the positions of the reserved resources in the time domain and the frequency domain, so as to avoid erroneously occupying the reserved resources.

Optionally, in addition to the base station B200 instructing the terminal T100 to detect the timing of the control information including the reserved resource configuration information, the terminal T100 can also determine the timing of detecting the control information including the reserved resource configuration information by itself. For example, the terminal T100 may detect the control information including the reserved resource configuration information before sending the SRS. For example, the following S409 and S410 can replace the above S403 and S404.

S409: The terminal T100 determines to send the SRS.

As an optional implementation manner, the processor 102 of the terminal T100 may be configured to determine that the SRS is to be sent. The SRS can be sent periodically or aperiodically; the aperiodic sending can be triggered by the network side to trigger the terminal to send the SRS.

S410: The terminal T100 starts to detect the control information including the reserved resource configuration information.

As an optional implementation manner, the processor 102 of the terminal T100 may detect the control information through the transceiver 101 .

By performing blind detection of the control information including the reserved resource configuration information before sending the SRS, the terminal can be prevented from sending the SRS on the reserved resources, and at the same time, the terminal that does not send the SRS can be prevented from continuously performing the control including the reserved resource configuration information. Blind inspection of information. This mechanism makes the terminal more power efficient.

There are various optional methods for carrying the time domain information or frequency domain information of the reserved resources in the DCI.

Below are some examples of time domain information.

个比特位。其中，

表示向上取整数。例如：

其中，M表示该DCI对应的时间区间所包括的时间单元的数量。在本申请中，时间单元可以是符号，时隙，迷你时隙等。Example 1: Time domain information of reserved resources occupies control information

bits. in,

Indicates rounding up. E.g:

Wherein, M represents the number of time units included in the time interval corresponding to the DCI. In this application, a time unit may be a symbol, a slot, a mini-slot, or the like.

个比特位，长度信息占用

个比特位。As a first optional design, the time domain information is the start position information and length information of the reserved resource in the time domain. Among them, the starting position information occupies

bits, the length information occupies

bits.

个比特位，结束位置信息占用

个比特位。As a second optional design, the time domain information is the start position information and end position information of the reserved resource in the time domain. Among them, the starting position information occupies

bits, the end position information occupies

bits.

个比特位。Example 2: Time domain information of reserved resources occupies control information

bits.

个比特位。As an optional design, the time domain information is the starting position information in the time domain of the reserved resources, and the starting position information occupies

bits.

个比特位。As another optional design, the time domain information is duration information of the reserved resources in the time domain. The duration information is occupied

bits.

个比特位。As another optional design, the time domain information is the end position information of the reserved resource in the time domain, and the end position information occupies

bits.

Example 3: Time domain information of reserved resources occupies M bits of control information. Wherein, M represents the number of time units included in the time interval corresponding to the DCI. The M bits are in one-to-one correspondence with the M time units in the time interval, that is, the value of each bit indicates whether the corresponding time unit is a time domain resource of a reserved resource. For example, the value of a bit can be a first value or a second value, when the first value is 0, the second value is 1, and when the first value is 1, the second value is 0. The time unit corresponding to the bit whose value is the first value among the M bits is the time domain resource of the reserved resource.

Example 4: The time domain information includes a period of the reserved resource and a time offset within the period; wherein the time offset is used to indicate a time domain position of the reserved resource within the period. Optionally, the time offset may indicate multiple time domain positions within a period.

The above examples are also applicable to the frequency domain information of reserved resources. It is sufficient to replace the relevant content in the time domain in the above two examples with the relevant content in the frequency domain. For example, replace time units with frequency units. The frequency unit may be one subcarrier, a group of subcarriers, one physical resource block, one resource block, one mini PRB, multiple physical resource blocks, multiple resource blocks, multiple mini PRBs, and so on.

Below are some examples of frequency domain information.

个比特位。Example 1: Frequency domain information of reserved resources occupies control information

bits.

个比特位。As an optional design, the frequency domain information is the starting position information in the frequency domain of the reserved resources, and the starting position information occupies

bits.

个比特位。As another optional design, the frequency domain information is length information of the reserved resources in the frequency domain. The length information occupies

bits.

个比特位。As another optional design, the frequency domain information is the end position information in the frequency domain of the reserved resources, and the end position information occupies

bits.

Optionally, the frequency domain information of the reserved resources may include multiple pieces of information among the above-mentioned starting position information, length information, and beam position information.

Example 2: Frequency domain information of reserved resources occupies N bits of control information. Wherein, N represents the number of frequency units included in the frequency interval corresponding to the DCI. The N bits are in one-to-one correspondence with the N frequency units in the frequency interval, that is, the value of each bit indicates whether the corresponding frequency unit is a frequency domain resource of reserved resources. For example, the value of a bit can be a first value or a second value, when the first value is 0, the second value is 1, and when the first value is 1, the second value is 0. The frequency unit corresponding to the bit whose value is the first value among the N bits is the frequency domain resource of the reserved resource.

Optionally, N may be indicated by signaling. For example, the signaling may be higher layer signaling; the higher layer signaling may be RRC signaling, and the RRC signaling may be RRC dedicated signaling, that is, terminal-specific RRC signaling. System message block SIB signaling and master information block MIB signaling are also a kind of RRC signaling. N may also be specified by a communication standard.

Optionally, in order to implement the time domain information or frequency domain information of the reserved resources carried in the above DCI, bits may be added on the basis of the existing DCI to implement the above example. As an example, the time interval corresponding to DCI 1 is one time slot, the time slot includes 14 symbols, and the frequency interval corresponding to DCI 1 includes 25 PRBs. The position of the reserved resource in the time domain is measured in units of symbols, and the position in the frequency domain is measured in units of PRBs. The number of bits required to carry the configuration information of the reserved resource in the DCI 1 is shown in Table 2.

Table 2

configuration information number of bits time domain start position 4bit length of time 4bit frequency domain starting position 5bit Frequency domain length 5bit

Optionally, the above example may be implemented by using the existing bits of the existing DCI. For example, the bits of the carrier indicator or the bits of the modulation and code scheme are used.

As another optional design, the base station B200 may send at least one set of reserved resource configuration information to the terminal T100 before S403. In part S405, the base station B200 may indicate to the terminal T100 through DCI 1 one set of reserved resource configuration information in the at least one set of reserved resource configuration information, so that the terminal T100 can obtain correct reserved resources according to the instruction of DCI 1 configuration information.

For example, FIG. 4 may also include S400A.

S400A: The base station B200 sends the RRC signaling to the terminal T100. The RRC signaling includes at least one set of reserved resource configuration information.

Optionally, the base station B200 may also send the reserved resource configuration information to the terminal T100 in a broadcast manner.

In this application, a set of reserved resource configurations may also be referred to as a reserved resource pattern. It can be understood that in part S400A, the base station B200 sends at least one set of reserved resource patterns to the terminal T100.

In part S405, DCI 1 includes a first indication, where the first indication is used to indicate a reserved resource pattern.

As an example, each set of reserved resource patterns may be assigned an index. The first indication of DCI1 may be an index of reserved resource patterns. One of the reserved resource patterns may be indicated to the terminal T100 by carrying an index of one of the reserved resource patterns in the DCI 1. For example, as shown in Table 3, the RRC signaling includes 4 sets of reserved resource patterns, and 2 bits can be used to index different reserved resource patterns. In DCI 1, 2 bits can be used to identify different reserved resource patterns.

table 3

index (2 bits) meaning 00 Reserved resource style 1 01 Reserved resource style 2 10 Reserved resource style 3 11 Reserved resource style 4

As another example, if the RRC signaling in S400A includes a reserved resource pattern, the DCI 1 scrambled by the R-RNTI itself can be used as the first indication information, that is, the first indication does not need to be displayed in the DCI 1 information. After receiving the DCI 1 scrambled by the R-RNTI, the terminal T100 may consider that the DCI 1 indicates the above-mentioned reserved resource pattern. As described in the previous section, the reserved resource pattern may include at least one of the above-mentioned time domain information and frequency domain information of the reserved resource.

As another optional design of the time domain information, the time domain information may indicate the period of the reserved resource in the time domain and the time offset within the period. Among them, the time offset is used to indicate the time domain position of the reserved resource in the period; the time offset in a period can be one or more, which is used to indicate one or more time domain positions of the reserved resource in the period .

For example, in Fig. 7, each column represents 1 slot, 1 subframe includes 2 slots, 1 system frame includes 10 subframes, and the subframes in a system frame are numbered from 0 incrementally (#0, #1... ...#9), the time slots in one subframe are numbered incrementally from 0 (#0, #1). The period of reserved resources is 20ms, and the time offset is the 5th time slot and the 13th time slot in the period. After receiving the time domain information, the terminal T100 knows that there are reserved resources in the time slot #0 of the subframe #2 of the system frame #0 and the time slot #0 of the subframe #6, and the system frame #0 in the next cycle has reserved resources. There are reserved resources for slot #0 of subframe #2 of 2 and slot #0 of subframe #6.

Those skilled in the art will know that the time offset can be expressed in various ways. The time offset in the above example can also be expressed as the 1st slot of the 3rd subframe and the 1st slot of the 7th subframe in the period, or can be expressed as the time slot of subframe #2 in the period #0 and slot #0 of subframe #6.

As an example, as shown in Table 4, the RRC signaling at S400A may include the following content.

Table 4

field illustrate cycle If not filled in, the default cycle can be used system frame number Fill in as needed subframe number Fill in as needed slot number Fill in as needed Symbol number Fill in as needed

For example, if the period is 20ms and the system frame number is #1, it means that the second system frame in every 20ms is the time domain occupied by the reserved resources. For another example, if the period is 10ms and the subframe number is #2, it means that the third subframe of every 10ms is the time domain occupied by the reserved resources.

Optionally, after part of S400A is executed, S403 may not be executed.

In the above embodiment, the detection of reserved resources is performed by the sending node instructing the receiving node, which avoids the need for the receiving node to detect whether there is information about reserved resources in each blind detection, and reduces the complexity of the blind detection of the receiving node. It can also reduce the energy consumption of the receiving node. In addition, compared with the scheme in which the sending node periodically broadcasts the information of the reserved resources, the sending node can timely notify the receiving node to detect the reserved resources, and thus can flexibly configure the reserved resources without being limited by the broadcast period. .

The embodiment of the present application further provides a corresponding receiving node, a sending node, and a chip to implement the method shown in FIG. 4 .

The present invention also provides the following examples. It should be noted that, the numbering of the following embodiments does not necessarily need to follow the numbering sequence of the preceding embodiments.

Embodiment 1, a communication method, characterized in that it includes:

The sending node sends detection indication information, where the detection indication information is used to indicate detection control information;

sending, by the sending node, the control information;

Wherein, the control information includes time domain information or frequency domain information of reserved resources.

Embodiment 2, a communication method, characterized in that it includes:

The receiving node receives detection indication information, where the detection indication information is used to indicate detection control information;

the receiving node detects the control information;

Wherein, the control information includes time domain information or frequency domain information of reserved resources.

Embodiment 3, a communication method, characterized in that it includes:

The receiving node detects the control information; the control information includes time domain information or frequency domain information of reserved resources, and the reserved resources are located in the time interval corresponding to the sounding reference signal SRS;

The receiving node sends the SRS within the time interval, and the SRS does not occupy the reserved resource.

Embodiment 4, a sending node, comprising: a processor and a transceiver;

The processor is configured to send detection indication information and send control information through the transceiver;

The detection indication information is used to indicate detection of the control information, and the control information includes time domain information or frequency domain information of reserved resources.

Embodiment 5, a receiving node, comprising: a processor and a transceiver;

The processor is configured to receive detection indication information through the transceiver;

The processor is used for detecting control information through the transceiver;

The detection indication information is used to indicate detection of the control information, and the control information includes time domain information or frequency domain information of reserved resources.

Embodiment 6, a receiving node, comprising: a processor and a transceiver;

The processor is used to:

Detecting control information by the transceiver; the control information includes time domain information or frequency domain information of reserved resources, and the reserved resources are located in the time interval corresponding to the sounding reference signal SRS;

The SRS is sent by the transceiver within the time interval; wherein the SRS does not occupy the reserved resources.

Embodiment 7. The method, the sending node, or the receiving node according to any one of Embodiments 1-6, characterized in that:

The cyclic redundancy check CRC bits of the control information are scrambled by using the wireless network temporary identifier RNTI, and the value of the RNTI is globally unique.

Embodiment 8. The method, the sending node, or the receiving node according to any one of Embodiments 1-7, characterized in that:

The control information is transmitted in a common search space.

Embodiment 9. The method, the sending node, or the receiving node according to any one of Embodiments 1-8, characterized in that:

个比特位，所述M为所述时间区间所包括的时间单元的数量。The time domain information includes time domain starting position information of the reserved resource in the time interval corresponding to the control information, and the time domain starting position information occupies

bits, and M is the number of time units included in the time interval.

Embodiment 10. The method, sending node, or receiving node according to any one of Embodiments 1-8, characterized in that:

个比特位，所述M为所述控制信息对应的时间区间所包括的时间单元的数量。The time domain information includes duration information of the reserved resources, and the duration information occupies

bits, where M is the number of time units included in the time interval corresponding to the control information.

Embodiment 11. The method, the sending node, or the receiving node according to any one of Embodiments 1-8, characterized in that:

个比特位，所述M为所述时间区间所包括的时间单元的数量。The time domain information includes time domain end position information of the reserved resource in the time interval corresponding to the control information, and the time domain end position information occupies

bits, and M is the number of time units included in the time interval.

Embodiment 12. The method, the sending node, or the receiving node according to any one of Embodiments 1-8, characterized in that:

The time domain information occupies M bits of the control information; wherein, the M is the number of time units included in the time interval corresponding to the control information;

The M bits are in one-to-one correspondence with the M time units included in the time interval;

The position of the time unit corresponding to the first value among the M bits in the time interval is the position of the reserved resource in the time interval.

Embodiment 13. The method, sending node, or receiving node according to any one of Embodiments 9-12, characterized in that:

The time unit is a symbol, or a mini-slot, or a time slot.

Embodiment 14. The method, sending node, or receiving node according to any one of Embodiments 1-13, characterized in that:

个比特位，所述N为所述频率区间所包括的频率单元的数量。The frequency domain information includes frequency domain starting position information of the reserved resource in the frequency interval corresponding to the control information, and the frequency domain starting position information occupies

bits, and N is the number of frequency units included in the frequency interval.

Embodiment 15. The method, sending node, or receiving node according to any one of Embodiments 1-13, characterized in that:

个比特位，所述N为所述控制信息对应的频率区间所包括的频率单元的数量。The frequency domain information includes frequency domain length information of the reserved resources; the frequency domain length information occupies

number of bits, and the N is the number of frequency units included in the frequency interval corresponding to the control information.

Embodiment 16. The method, sending node, or receiving node according to any one of Embodiments 1-13, characterized in that:

个比特位，所述N为所述频率区间所包括的频率单元的数量。The frequency domain information includes frequency domain end position information of the reserved resource in the frequency interval corresponding to the control information; the frequency domain end position information occupies

bits, and N is the number of frequency units included in the frequency interval.

Embodiment 17. The method, sending node, or receiving node according to Embodiment 1-13, characterized in that:

The frequency domain information occupies N bits of the control information; wherein, the N is the number of frequency units included in the frequency interval corresponding to the control information;

The N bits are in one-to-one correspondence with the N frequency units included in the frequency interval;

The position of the frequency unit corresponding to the bit whose value is the second value among the N bits in the frequency interval is the position of the reserved resource in the frequency interval.

Embodiment 18. The method, sending node, or receiving node according to any one of Embodiments 14-17, characterized in that:

The frequency unit is a subcarrier or a subcarrier group composed of multiple subcarriers.

Embodiment 19. The method, the sending node, or the receiving node according to any one of Embodiments 14-18, wherein the N is indicated by signaling.

Embodiment 20. The method, the sending node, or the receiving node according to any one of Embodiments 14-18, wherein the control information further includes information indicating the N.

Embodiment 21. The method, the sending node, or the receiving node according to any one of Embodiments 1-20, wherein the bits occupied by the time domain information or the bits occupied by the frequency domain information are The bits occupied by the carrier indication in the control information or a part of the bits occupied by the carrier indication in the control information.

Embodiment 22. The method, the sending node, or the receiving node according to any one of Embodiments 1-21, wherein the bits occupied by the time domain information or the bits occupied by the frequency domain information are The bits occupied by the modulation and coding scheme in the control information or a part of the bits occupied by the modulation and coding scheme in the control information.

Embodiment 23. The method, sending node, or receiving node according to any one of Embodiments 1-22, characterized in that:

The control information is transmitted through the first channel, the code rate of the first channel is 1/3 code rate, and the modulation mode is QPSK.

Embodiment 24. The method, sending node, or receiving node according to any one of Embodiments 1-23, characterized in that:

The detection indication information is downlink control information for downlink allocation.

Embodiment 25. The method, sending node, or receiving node according to any one of Embodiments 1-24, characterized in that:

The detection indication information may be detection time information. The detection time information is used to indicate the timing of detecting the above-mentioned control information. As an example, the detection time information includes a detection period and a candidate position within the detection period, where the candidate position is used to indicate a time domain position within the detection period.

There can be multiple candidate positions in the detection period.

After receiving the detection time information, the terminal may detect the above-mentioned control information at the corresponding candidate position according to the detection period.

Alternatively, the detection time information includes candidate positions, and the detection time information is used to indicate that the control information is detected at the candidate positions in the time domain.

Embodiment 26. The method according to any one of Embodiments 1-2, a sending node or a receiving node, characterized in that:

The time domain information includes a period of the reserved resource and a time offset within the period; wherein the time offset is used to indicate a time domain position of the reserved resource within the period.

Optionally, the time offset may indicate multiple time domain positions within a period. The time offset is represented by one or more of the system frame number, subframe number, slot number, and symbol number.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and 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 in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.

The above-mentioned integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium. The above-mentioned software function unit is stored in a storage medium, and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute the methods described in the various embodiments of the present application. some steps. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

Those skilled in the art can clearly understand that, for the convenience and brevity of the description, only the division of the above functional modules is used for illustration. The internal structure is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the apparatus described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

Those of ordinary skill in the art can understand that the first, second, and other numeral numbers involved in this document are only for the convenience of description, and are not used to limit the scope of the embodiments of the present application.

Those of ordinary skill in the art can understand that, in various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, rather than No limitation should be formed on the implementation process of the embodiments of the present application.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present invention are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission to another website site, computer, server, or data center is by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes an integration of one or more available media. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), among others.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present application. scope.

Claims (6)

1. A method of communication, comprising:

the sending node sends detection time information;

wherein,

the detection time information comprises a detection period and candidate positions in the detection period, and the detection time information is used for indicating the candidate position detection control information in the detection period; or,

the detection time information includes a candidate position, the detection time information indicating that the candidate position in the time domain detects the control information;

a sending node sends detection indication information, wherein the detection indication information is used for indicating the start of detection control information;

the transmitting node transmits at least one reserved resource pattern;

the transmitting node transmitting control information, the control information comprising a first indication for indicating one of the at least one reserved resource pattern;

wherein the reserved resource pattern includes at least one of time domain information and frequency domain information of reserved resources.

2. A method of communication, comprising:

receiving detection time information by a receiving node;

wherein,

the detection time information comprises a detection period and candidate positions in the detection period, and the detection time information is used for indicating the candidate position detection control information in the detection period; or,

the detection time information includes a candidate position, the detection time information indicating that the candidate position in the time domain detects the control information;

a receiving node receives detection indication information, wherein the detection indication information is used for indicating the start of detection of control information;

the receiving node receiving at least one reserved resource pattern;

the receiving node receiving control information comprising a first indication indicating one of the at least one reserved resource pattern;

wherein the reserved resource pattern includes at least one of time domain information and frequency domain information of reserved resources.

3. A transmitting node, comprising: a processor and a transceiver;

the processor is configured to receive, by the transceiver, detection time information;

wherein,

the detection time information comprises a detection period and candidate positions in the detection period, and the detection time information is used for indicating the candidate position detection control information in the detection period; or,

the detection time information includes a candidate position, and the detection time information indicates that the candidate position in the time domain detects the control information

The processor is configured to send detection indication information through the transceiver, where the detection indication information is used to indicate to start detecting control information;

the processor is configured to transmit, by the transceiver, at least one reserved resource pattern;

the processor is further configured to transmit, by the transceiver, control information including a first indication indicating one of the at least one reserved resource pattern;

wherein the reserved resource pattern includes at least one of time domain information and frequency domain information of reserved resources.

4. A receiving node, comprising: a processor and a transceiver;

the processor is configured to receive, by the transceiver, detection time information;

wherein,

the detection time information comprises a detection period and candidate positions in the detection period, and the detection time information is used for indicating the candidate position detection control information in the detection period; or,

the detection time information includes a candidate position, the detection time information indicating that the candidate position in the time domain detects the control information;

the processor is configured to receive detection indication information through the transceiver, where the detection indication information is used to indicate to start detecting control information;

the processor is configured to receive, by the transceiver, at least one reserved resource pattern;

the processor is further configured to receive, by the transceiver, control information including a first indication indicating one of the at least one reserved resource pattern;

wherein the reserved resource pattern includes at least one of time domain information and frequency domain information of reserved resources.

5. The method or node according to any one of claims 1-4,

the time domain information comprises the period of the reserved resource and the time offset in the period; wherein the time offset is used to indicate a time domain position of the reserved resource within the period.

6. The method or node of claim 5,

the time offset is represented by one or more of a system frame number, a subframe number, a slot number, and a symbol number.

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