CN110830207A

CN110830207A - Information sending and receiving method, equipment and device

Info

Publication number: CN110830207A
Application number: CN201810910121.8A
Authority: CN
Inventors: 谢信乾; 郭志恒; 费永强; 毕文平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-08-10
Filing date: 2018-08-10
Publication date: 2020-02-21

Abstract

Provided are an information sending and receiving method, device and device. The network device determines first indication information, where the first indication information is used to indicate a first uplink time domain symbol, and the first uplink time domain symbol is at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration period. The network device transmits the first indication information. For example, the first uplink time domain symbol is an uplink time domain symbol that is subjected to downlink interference from other network devices, and then after the terminal device determines the first uplink time domain symbol, the uplink transmission power on the first uplink time domain symbol may be increased, so that the interference from other network devices on the first uplink time domain symbol may be reduced, and the uplink transmission success rate may be increased.

Description

Information sending and receiving method, equipment and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to an information sending method, an information receiving method, an information sending device, an information receiving device, and an information receiving device.

Background

For a wireless communication system operating in a Time Division Duplex (TDD) mode, the system usually includes only one operating band, so the band is also referred to as an unpaired band. For a system using unpaired frequency bands, the whole working frequency band is only used for downlink communication or only used for uplink communication in an area covered by the same network device in a period of time, and the network device configures a frame structure for determining the time periods for downlink communication and uplink communication. Fig. 1A is a typical frame structure configuration, in which time slots numbered 0, 1, 2, 5, 6, and 7 in fig. 1A are downlink communication time slots, denoted by D, downlink time slots are uplink communication time slots, denoted by U, uplink time slots are denoted by U, and time slots numbered 3 and 8 are generally called special time slots for conversion from downlink communication to uplink communication. It should be noted that, it takes a certain time when the hardware of the network device and the terminal device switches from the downlink communication to the uplink communication, so a part of the guard interval needs to be reserved in the special time slot, so that the network device and the terminal device complete the switching from the downlink to the uplink, as shown in fig. 1A, in the special time slots numbered 3 and 8, the empty part between the downlink and the uplink represents an unknown symbol and cannot be used for the downlink or uplink transmission. Typically, these unknown symbols can be referred to as guard intervals.

In a wireless communication system, such as a New Radio (NR) system, a Long Term Evolution (LTE) system, or an evolved LTE (LTE-Advanced) system, if the system uses a TDD duplex mode, a cross-link interference (CLI) may be generated between network devices. The term "alien interference" between network devices mainly refers to that a Downlink (DL) signal sent by one network device interferes with an Uplink (UL) signal of another network device, and the uplink signal is, for example, a signal sent by a User Equipment (UE) to the network device. For example, when a first network device transmits a downlink signal, a second network device is receiving the uplink signal, and the downlink signal transmitted by the first network device generally has a relatively high power and may be received by the second network device, which may interfere with the second network device receiving the uplink signal.

CLI between network devices typically occurs in situations where the transmission directions of two TDD cells operating at the same frequency are different, and thus, if the TDD cells keep the transmission directions the same, CLI is not typically generated. However, there are exceptions, for example, two network devices located at far apart geographical locations generate CLI when the downlink signal transmitted by one network device reaches the other network device due to the far geographical location between the two network devices, even though their transmission directions are the same, that is, the two network devices receive the uplink signal and transmit the downlink signal at the same time, and the other network device may have switched to the uplink reception direction.

At present, network equipment can determine time periods of long-distance interference, but terminal equipment within the coverage range of the network equipment cannot know which time periods are subjected to the long-distance interference, so that an interference suppression method cannot be adopted to reduce adverse effects of the long-distance interference on communication performance.

Disclosure of Invention

The embodiment of the application provides an information sending and receiving method, equipment and a device, which are used for providing a mechanism for notifying an uplink time domain symbol.

In a first aspect, a first information sending method is provided, where the method includes: determining first indication information, where the first indication information is used to indicate a first uplink time domain symbol, where the first uplink time domain symbol is at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration period; and sending the first indication information.

The method may be performed by a first communication device, which may be a network device or a communication device capable of supporting the network device to implement the functions required by the method, but may also be other communication devices, such as a system-on-chip.

Accordingly, in a second aspect, there is provided a first information receiving method, the method comprising: receiving first indication information from a network device, where the first indication information is used to indicate a first uplink time domain symbol, and the first uplink time domain symbol includes at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink and downlink configuration period; and determining the first uplink time domain symbol according to the first indication information.

The method may be performed by a second communication device, which may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, but may also be other communication devices, such as a system-on-chip.

In this embodiment of the present application, first indication information may be determined and sent, where the first indication information is used to indicate at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration period, so that a network device may notify a terminal device of the determined uplink time domain symbol, and a mechanism for notifying the terminal device of the uplink time domain symbol is provided. For example, the first uplink time domain symbol is an uplink time domain symbol that is subjected to downlink interference from other network devices, and then after the terminal device determines the first uplink time domain symbol, the uplink transmission power on the first uplink time domain symbol may be increased, so that the interference from other network devices on the first uplink time domain symbol may be reduced, and the uplink transmission success rate may be increased.

In a possible design, the first indication information includes a number of at least one continuous uplink time domain symbol in an uplink time period corresponding to one downlink-to-uplink transition position in the uplink and downlink configuration period, and the one downlink-to-uplink transition position is any one downlink-to-uplink transition position in the uplink and downlink configuration period; or, the first indication information includes the number of at least one continuous uplink time domain symbol in an uplink time period corresponding to one downlink-to-uplink transition position in the uplink and downlink configuration period, and the position of an initial time domain symbol in the at least one continuous uplink time domain symbol, where the one downlink-to-uplink transition position is any one downlink-to-uplink transition position in the uplink and downlink configuration period; or, the first indication information includes a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, and the downlink-to-uplink conversion position is set as any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the first indication information includes a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, and a number of at least one continuous uplink time domain symbol in an uplink time period corresponding to the downlink-to-uplink conversion position, where the downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the first indication information includes a position of an initial time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, and the downlink-to-uplink conversion position is set as any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the first indication information includes a position of a starting time domain symbol and a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to a downlink-to-uplink transition position in the uplink and downlink configuration period, where the downlink-to-uplink transition position is any one downlink-to-uplink transition position in the uplink and downlink configuration period.

In this context, the "starting time-domain symbol" and the "first time-domain symbol" are understood to be the same concept, and the two may be replaced with each other. The first indication information may indicate a position of the first uplink time domain symbol, where multiple indication manners are provided, and any one of the manners may be selected for indication. For example, the first indication information may indicate sufficient information, and then the first uplink time domain symbol may be determined according to the first indication information, or, for example, the first indication information includes a position of a last time domain symbol or a position of a first time domain symbol in at least one consecutive uplink time domain symbol in an uplink time period corresponding to one downlink-to-uplink transition position in the uplink configuration period, or the first indication information includes a number of at least one consecutive uplink time domain symbol in an uplink time period corresponding to one downlink-to-uplink transition position in the uplink configuration period, that is, the first indication information only provides a part of indication information, and then the first uplink time domain symbol may also be determined in combination with other information, for example, in combination with predefined information. The mode is more flexible.

In a possible design, in uplink time domain symbols included in the first uplink time domain symbol, the number of at least one continuous uplink time domain symbol in each uplink time period in the uplink and downlink configuration cycle is the same.

If the number of at least one continuous uplink time domain symbol in each uplink time period in the uplink and downlink configuration period is the same, the first indication information may indicate in the foregoing manner, that is, the first indication information indicates that all the indications are the situation of at least one continuous uplink time domain symbol in the uplink time period corresponding to the downlink-to-uplink transition position, and by indicating the situation of at least one continuous uplink time domain symbol in the uplink time period corresponding to the downlink-to-uplink transition position, the indication of the entire uplink and downlink configuration period may be implemented, which is beneficial to reducing the information amount of the first indication information. Of course, if the conditions of different uplink and downlink configuration periods are the same, the first indication information can indicate a plurality of uplink and downlink configuration periods only by indicating the condition of at least one continuous uplink time domain symbol in the uplink time period corresponding to one downlink-to-uplink conversion position, and if the conditions of different uplink and downlink configuration periods are different, the first indication information can respectively indicate different uplink and downlink configuration periods.

In one possible design, the determining, by the first indication information, the first uplink time domain symbol includes a number of at least one continuous uplink time domain symbol in an uplink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, and includes: determining the first uplink time domain symbol according to the first indication information and a predetermined position of a starting time domain symbol in the at least one continuous uplink time domain symbol; or, the determining, by the first indication information, the first uplink time domain symbol includes a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period after a downlink-to-uplink conversion position in the uplink and downlink configuration period, and includes: and determining the first uplink time domain symbol according to the first indication information and the position of the starting time domain symbol in the at least one continuous uplink time domain symbol determined in advance.

If the first indication information indicates a part of information, the terminal device may further determine the first uplink time domain symbol in combination with predetermined other information, for example, information predefined by a protocol, or information preconfigured by the network device, which is not limited in particular.

In one possible design, a starting time domain symbol in the predetermined at least one consecutive uplink time domain symbol is a first time domain symbol in an uplink time period after the downlink-to-uplink transition position.

Here, the starting time domain symbol in at least one predetermined consecutive uplink time domain symbol is only an example, and the embodiment of the present application is not limited thereto.

In one possible design, the first indication information includes the number of at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the first indication information includes the number of at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration cycle, and the position of the starting time domain symbol in the at least one continuous uplink time domain symbol in the uplink time period corresponding to each downlink-to-uplink conversion position; or, the first indication information includes a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the first indication information includes a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink configuration cycle, and a number of at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position; or, the first indication information includes a position of a first time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the first indication information includes a position of a first time domain symbol and a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period.

If the number of at least one continuous uplink time domain symbol in each uplink time period in the uplink and downlink configuration period is the same, the first indication information may indicate in the manner described in the foregoing design, and if the number of at least one continuous uplink time domain symbol in different uplink time periods in the uplink and downlink configuration period is different, the first indication information may indicate in this manner, that is, the first indication information indicates a condition of at least one continuous uplink time domain symbol in the uplink time period corresponding to each downlink-to-uplink transition position in the uplink and downlink configuration period, thereby implementing an indication of the entire uplink and downlink configuration period, so that the indication is more definite. Of course, if the conditions of different uplink and downlink configuration periods are the same, the first indication information can indicate a plurality of uplink and downlink configuration periods only by indicating the condition of at least one continuous uplink time domain symbol in the uplink time period corresponding to each downlink-to-uplink switching position in one uplink and downlink switching period, and if the conditions of different uplink and downlink configuration periods are different, the first indication information can respectively indicate different uplink and downlink configuration periods.

In a possible design, a position of a starting time domain symbol in the at least one continuous uplink time domain symbol in an uplink time period corresponding to a downlink-to-uplink transition position in one uplink and downlink configuration period is determined by using a position of a first uplink time domain symbol after the one downlink-to-uplink transition position as a reference position, or is determined by using a position of a first downlink time domain symbol in the one uplink and downlink configuration period as a reference position; or, the position of the last time domain symbol in the at least one continuous uplink time domain symbol in the uplink time period corresponding to one downlink-to-uplink conversion position in one uplink and downlink configuration cycle is determined by using the position of the last uplink time domain symbol in the uplink time period corresponding to the one downlink-to-uplink conversion position as a reference position.

To determine the position of one time domain symbol, a reference position may be specified, and the positions of other time domain symbols may be determined based on the reference position. In the embodiment of the present application, if the position of the starting time domain symbol in at least one continuous uplink time domain symbol is to be determined, the position of the first uplink time domain symbol after the downlink-to-uplink conversion position may be used as the reference position, and if the position of the last uplink time domain symbol in at least one continuous uplink time domain symbol is to be determined, the position of the last uplink time domain symbol in the uplink time period corresponding to the downlink-to-uplink conversion position may be used as the reference position, and it can be seen that this way of setting the reference position makes the process of determining the position of the uplink time domain symbol simpler.

In one possible design, the first parameter is different from a second parameter, where the first parameter is used to determine the uplink transmission power used in the first uplink time domain symbol, the second parameter is used to determine the uplink transmission power used in a second uplink time domain symbol, and the second uplink time domain symbol includes other uplink time domain symbols in the uplink and downlink configuration period except for the first uplink time domain symbol.

The uplink transmission power adopted by the terminal device on the first uplink time domain symbol may be different from the uplink transmission power adopted on the second uplink time domain symbol, for example, the uplink transmission power adopted on the first uplink time domain symbol may be greater than the uplink transmission power adopted on the second uplink time domain symbol, thereby being beneficial to reducing the influence of interference on the first uplink time domain symbol and improving the success rate of uplink transmission as much as possible.

In one possible design, the method further includes: and sending second indication information, where the second indication information is used to indicate a first parameter, or is used to indicate a difference value, where the first parameter is used to determine uplink sending power used on the first uplink time domain symbol, the difference value is a difference value between uplink sending power used on a second uplink time domain symbol and uplink sending power used on the first uplink time domain symbol, and the second uplink time domain symbol includes other uplink time domain symbols in the uplink and downlink configuration period except the first uplink time domain symbol. Correspondingly, the method further comprises the following steps: receiving second indication information from the network device, where the second indication information includes the first parameter, or where the second indication information includes a difference between an uplink transmission power employed on the second uplink time domain symbol and an uplink transmission power employed on the first uplink time domain symbol.

The uplink transmission power specifically adopted by the terminal device on the first uplink time domain symbol may be notified to the terminal device by the network device, for example, the network device may send a first parameter to the terminal device, and the terminal device may determine the uplink transmission power that should be adopted on the first uplink time domain symbol according to the first parameter. The network equipment sends the first parameter to the terminal equipment in a direct mode. Or, the network device may also send the difference to the terminal device, and for the terminal device, the uplink transmission power used in the second uplink time domain symbol is known, and then the terminal device may determine the uplink transmission power that should be used in the first uplink time domain symbol according to the uplink transmission power used in the second uplink time domain symbol and the difference. The network device sends the difference value to the terminal device, and the information amount of the difference value is generally smaller than that of the first parameter, so that the network device is beneficial to saving transmission resources.

In one possible design, sending the first indication information includes: and sending a system message, wherein the system message comprises the first indication information. Correspondingly, the first indication information is received from the network equipment, and comprises the following steps: receiving a system message from the network device, the system message including the first indication information.

The network device may send the first indication information through a cell-common message, where the cell-common message includes, for example, a system message or a broadcast message, and thus, the first indication information may be collectively notified to the plurality of terminal devices, and the utilization rate of the first indication information is improved. Alternatively, the network device may send the first indication information through a message dedicated to the terminal device, so that the terminal device may be notified in a separate manner, so that the notification is more explicit.

In a third aspect, a second information sending method is provided, where the method includes: determining first indication information, where the first indication information is used to indicate a first downlink time domain symbol, where the first downlink time domain symbol is at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink and downlink configuration period; and sending the first indication information.

The method may be performed by a third communication device, which may be a network device or a communication device capable of supporting the network device to implement the functions required by the method, but may also be other communication devices, such as a system-on-chip.

Accordingly, in a fourth aspect, there is provided a second information receiving method, comprising: receiving first indication information from a network device, where the first indication information is used to indicate a position of a first downlink time domain symbol, where the first downlink time domain symbol includes at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in at least one uplink configuration period; and determining the first downlink time domain symbol according to the first indication information.

The method may be executed by a fourth communication device, which may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, or may be other communication devices, such as a system-on-chip.

In this embodiment of the present application, first indication information may be determined and sent, where the first indication information is used to indicate at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink and downlink configuration period, so that a network device may notify a terminal device of the determined downlink time domain symbol, and a mechanism for notifying the terminal device of the downlink time domain symbol is provided.

For example, the first downlink time domain symbol is a downlink time domain symbol that may interfere with uplink transmission of other network devices, and then after determining the first downlink time domain symbol, the network device may reduce downlink transmission power on the first downlink time domain symbol, and after determining the first downlink time domain symbol, the terminal device may also know that the network device may use smaller downlink transmission power on the first downlink time domain symbol, so that the terminal device may correctly receive the downlink signal sent by the network device on the first downlink time domain symbol. Therefore, the interference on other network equipment on the first downlink time domain symbol is reduced, the uplink sending success rate of other network equipment is improved, and the success of downlink transmission of the network equipment can be ensured as much as possible.

In a possible design, the first indication information includes a number of at least one continuous downlink time domain symbol in a downlink time period corresponding to one downlink-to-uplink transition position in the uplink and downlink configuration period, and the one downlink-to-uplink transition position is any one downlink-to-uplink transition position in the uplink and downlink configuration period; or, the first indication information includes the number of at least one continuous downlink time domain symbol in a downlink time period corresponding to one downlink-to-uplink conversion position in the uplink and downlink configuration period, and the position of an initial time domain symbol in the at least one continuous downlink time domain symbol, where the one downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the first indication information includes a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, and the downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the first indication information includes a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, and the number of the at least one continuous downlink time domain symbol, where the downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the first indication information includes a position of an initial time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, and the downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the first indication information includes a position of a starting time domain symbol and a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to a downlink-to-uplink transition position in the uplink and downlink configuration period, where the downlink-to-uplink transition position is any one downlink-to-uplink transition position in the uplink and downlink configuration period.

The first indication information may indicate a position of the first downlink time domain symbol, where a plurality of indication manners are provided, any one of which may be selected for indication. For example, the first indication information may indicate sufficient information, the first downlink time domain symbol may be determined according to the first indication information, or, for example, the first indication information includes a position of a last time domain symbol or a position of a first time domain symbol in at least one consecutive downlink time domain symbol in an uplink time period corresponding to one downlink-to-uplink transition position in the uplink configuration period, or the first indication information includes a number of at least one consecutive downlink time domain symbol in an uplink time period corresponding to one downlink-to-uplink transition position in the uplink configuration period, that is, the first indication information only provides a part of the indication information, and then the first downlink time domain symbol may be determined in combination with other information, for example, in combination with predefined information. The mode is more flexible.

In one possible design, in the downlink time domain symbols included in the first downlink time domain symbol, the number of at least one consecutive downlink time domain symbol in each downlink time period in the uplink and downlink configuration cycle is the same.

If the number of at least one continuous downlink time domain symbol in each downlink time period in the uplink and downlink configuration period is the same, the first indication information may indicate in the foregoing manner, that is, the first indication information indicates that all the indications are the situation of at least one continuous downlink time domain symbol in the downlink time period corresponding to one downlink-to-uplink transition position, and by indicating the situation of at least one continuous downlink time domain symbol in the downlink time period corresponding to one downlink-to-uplink transition position, the indication of the entire uplink and downlink configuration period may be implemented, which is beneficial to reducing the information amount of the first indication information. Of course, if the conditions of different uplink and downlink configuration periods are the same, the first indication information can indicate a plurality of uplink and downlink configuration periods only by indicating the condition of at least one continuous downlink time domain symbol in the downlink time period corresponding to one downlink-to-uplink conversion position, and if the conditions of different uplink and downlink configuration periods are different, the first indication information can respectively indicate different uplink and downlink configuration periods.

In one possible design, the determining, by the first indication information, the first downlink time domain symbol includes a number of at least one consecutive downlink time domain symbol in a downlink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, and includes: determining the first downlink time domain symbol according to the first indication information and a predetermined position of a last time domain symbol in the at least one continuous downlink time domain symbol; or, the determining, by the first indication information, the first downlink time domain symbol according to the first indication information includes a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period after a downlink-to-uplink conversion position in the uplink and downlink configuration period, and includes: and determining the first downlink time domain symbol according to the first indication information and a predetermined position of a starting time domain symbol in the at least one continuous uplink time domain symbol.

If the first indication information indicates a part of information, the terminal device may further determine the first downlink time domain symbol in combination with predetermined other information, for example, information predefined by a protocol, or information preconfigured by the network device, which is not limited in particular.

In one possible design, the last downlink time domain symbol in the predetermined at least one consecutive downlink time domain symbol is the last downlink time domain symbol in the downlink time period before the downlink-to-uplink switching position.

Here, the last time domain symbol in the predetermined at least one consecutive downlink time domain symbol is only an example, and the embodiment of the present application is not limited thereto.

In one possible design, the first indication information includes the number of at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the first indication information includes the number of at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration cycle, and the position of the starting time domain symbol in the at least one continuous downlink time domain symbol in the downlink time period corresponding to each downlink-to-uplink conversion position; or, the first indication information includes a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period, and the one downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the first indication information includes a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration cycle, and a number of at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position.

If the number of at least one continuous downlink time domain symbol in each downlink time period in the uplink and downlink configuration period is the same, the first indication information may indicate in the manner described in the foregoing design, and if the number of at least one continuous downlink time domain symbol in different downlink time periods in the uplink and downlink configuration period is different, the first indication information may indicate in this manner, that is, the first indication information indicates a condition of at least one continuous downlink time domain symbol in the downlink time period corresponding to each downlink-to-uplink transition position in the uplink and downlink configuration period, thereby implementing indication of the entire uplink and downlink configuration period, so that the indication is more definite. Of course, if the conditions of different uplink and downlink configuration periods are the same, the first indication information can indicate a plurality of uplink and downlink configuration periods only by indicating the condition of at least one continuous downlink time domain symbol in the downlink time period corresponding to each downlink-to-uplink switching position in one uplink and downlink switching period, and if the conditions of different uplink and downlink configuration periods are different, the first indication information can respectively indicate different uplink and downlink configuration periods.

In a possible design, a position of a starting time domain symbol in the at least one continuous downlink time domain symbol in a downlink time period corresponding to a downlink-to-uplink transition position in one uplink and downlink configuration period is determined by using a position of a first downlink time domain symbol before the one downlink-to-uplink transition position as a reference position; or, the position of the last time domain symbol in the at least one continuous downlink time domain symbol in the downlink time period corresponding to one downlink-to-uplink conversion position in one uplink and downlink configuration cycle is determined by using the position of the first downlink time domain symbol in the downlink time period corresponding to the one downlink-to-uplink conversion position as a reference position.

To determine the position of one time domain symbol, a reference position may be specified, and the positions of other time domain symbols may be determined based on the reference position. In the embodiment of the present application, if the position of the starting time domain symbol in at least one continuous downlink time domain symbol is to be determined, the position of the first downlink time domain symbol before the downlink-to-uplink conversion position may be used as the reference position, and if the position of the last time domain symbol in at least one continuous uplink time domain symbol is to be determined, the position of the first downlink time domain symbol in the downlink time period corresponding to the downlink-to-uplink conversion position may be used as the reference position, and it can be seen that this way of setting the reference position makes the process of determining the position of the downlink time domain symbol simpler.

In one possible design, the first parameter is different from a second parameter, where the first parameter is used to determine the downlink transmission power used in the first downlink time domain symbol, the second parameter is used to determine the downlink transmission power used in a second downlink time domain symbol, and the second downlink time domain symbol includes other downlink time domain symbols in the at least one uplink and downlink configuration period except for the first downlink time domain symbol.

The downlink transmit power adopted by the network device on the first downlink time domain symbol may be different from the downlink transmit power adopted on the second downlink time domain symbol, for example, the downlink transmit power adopted on the first downlink time domain symbol may be smaller than the downlink transmit power adopted on the second downlink time domain symbol, thereby being beneficial to reducing interference on other network devices on the first downlink time domain symbol and improving the success rate of uplink transmission of other network devices as much as possible.

In one possible design, the method further includes: and sending second indication information, where the second indication information is used to indicate a first parameter, or is used to indicate a difference value, where the first parameter is used to determine downlink sending power used on the first downlink time domain symbol, the difference value is a difference value between downlink sending power used on a second downlink time domain symbol and downlink sending power used on the downlink uplink time domain symbol, and the second downlink time domain symbol includes other downlink time domain symbols in the at least one uplink and downlink configuration period except the first downlink time domain symbol. Correspondingly, the method further comprises the following steps: receiving second indication information from the network device, where the second indication information includes the first parameter, or where the second indication information includes a difference between downlink transmission power used on the second downlink time domain symbol and downlink transmission power used on the first downlink time domain symbol.

The network device may notify the terminal device of the downlink transmission power specifically adopted by the network device on the first downlink time domain symbol, for example, the network device may transmit the first parameter to the terminal device, and the terminal device may determine the downlink transmission power adopted by the network device on the first downlink time domain symbol according to the first parameter, so that the terminal device may implement correct reception on the first downlink time domain symbol. The network equipment sends the first parameter to the terminal equipment in a direct mode. Or, the network device may also send the difference to the terminal device, and for the terminal device, correct reception can be achieved only by knowing the difference between the downlink transmit power used by the network device on the second downlink time domain symbol and the downlink transmit power used on the first downlink time domain symbol. The network device sends the difference value to the terminal device, and the information amount of the difference value is generally smaller than that of the first parameter, so that the network device is beneficial to saving transmission resources.

In a fifth aspect, a third method for sending information is provided, the method including: determining third indication information and fourth indication information, wherein the third indication information is used for indicating a first uplink time domain symbol, the first uplink time domain symbol is at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration period, the fourth indication information is used for indicating a first downlink time domain symbol, and the first downlink time domain symbol is at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in the uplink configuration period; and sending the third indication information and the fourth indication information.

The method may be performed by a fifth communication device, which may be a network device or a communication device capable of supporting the network device to implement the functions required by the method, but may also be other communication devices, such as a system-on-chip.

Accordingly, in a sixth aspect, there is provided a third information receiving method, comprising: receiving third indication information and fourth indication information from a network device, where the third indication information is used to indicate a first uplink time domain symbol, the first uplink time domain symbol is at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration cycle, and the fourth indication information is used to indicate a first downlink time domain symbol, and the first downlink time domain symbol is at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in the uplink configuration cycle; sending the third indication information and the fourth indication information; and determining the first uplink time domain symbol according to the third indication information, and determining the first downlink time domain symbol according to the fourth indication information.

The method may be performed by a sixth communication device, which may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, but may also be other communication devices, such as a system-on-chip.

In consideration of reciprocity of long-distance interference, the interfered network device often causes interference to other network devices, and in the embodiment of the present application, one network device may determine the first downlink time domain symbol that may interfere with other network devices, and may also determine the first uplink time domain symbol that may be interfered by other network devices, so that processing may be performed together, and the processing efficiency is improved.

In a possible design, the third indication information includes the number of at least one continuous uplink time domain symbol in an uplink time period corresponding to one downlink-to-uplink transition position in the uplink and downlink configuration period, and the one downlink-to-uplink transition position is any one downlink-to-uplink transition position in the uplink and downlink configuration period; or, the third indication information includes the number of at least one continuous uplink time domain symbol in an uplink time period corresponding to one downlink-to-uplink conversion position in the uplink and downlink configuration period, and the position of an initial time domain symbol in the at least one continuous uplink time domain symbol, where the one downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the third indication information includes a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, and the downlink-to-uplink conversion position is set as any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the third indication information includes a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, and a number of at least one continuous uplink time domain symbol in an uplink time period corresponding to the downlink-to-uplink conversion position, where the downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the third indication information includes a position of an initial time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, where the downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the third indication information includes a position of a starting time domain symbol and a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to a downlink-to-uplink transition position in the uplink and downlink configuration period, where the downlink-to-uplink transition position is any one downlink-to-uplink transition position in the uplink and downlink configuration period.

In one possible design, the determining, by the third indication information, the first uplink time domain symbol according to the third indication information includes determining, by the third indication information, a number of at least one consecutive uplink time domain symbol in an uplink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration cycle, where the determining includes: determining the first uplink time domain symbol according to the third indication information and a predetermined position of a starting time domain symbol in the at least one continuous uplink time domain symbol; or, the third indication information includes a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period after a downlink-to-uplink conversion position in the uplink and downlink configuration period, and determining the first uplink time domain symbol according to the third indication information includes: and determining the first uplink time domain symbol according to the third indication information and a predetermined position of a starting time domain symbol in the at least one continuous uplink time domain symbol.

In a possible design, the third indication information includes a number of at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the third indication information includes the number of at least one continuous uplink time domain symbol in the uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period, and the position of the starting time domain symbol in the at least one continuous uplink time domain symbol in the uplink time period corresponding to each downlink-to-uplink conversion position; or, the third indication information includes a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the third indication information includes a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration cycle, and a number of at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position; or, the third indication information includes a position of a first time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the third indication information includes a position of a first time domain symbol and a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period.

In one possible design, the method further includes: and sending fifth indication information, where the fifth indication information is used to indicate a first parameter or is used to indicate a difference value, where the first parameter is used to determine uplink transmission power used on the first uplink time domain symbol, the difference value is a difference value between uplink transmission power used on a second uplink time domain symbol and uplink transmission power used on the first uplink time domain symbol, and the second uplink time domain symbol includes other uplink time domain symbols in the uplink and downlink configuration period except the first uplink time domain symbol. Correspondingly, the method further comprises the following steps: receiving fifth indication information from the network device, where the fifth indication information includes the first parameter, or where the fifth indication information includes a difference between uplink transmission power used on the second uplink time domain symbol and uplink transmission power used on the first uplink time domain symbol.

In one possible design, the third indication information is sent, including: and sending a system message, wherein the system message comprises the first indication information. Correspondingly, the third indication information is received from the network device, and comprises: receiving a system message from the network device, the system message including the third indication information.

In a possible design, the fourth indication information includes a number of at least one continuous downlink time domain symbol in a downlink time period corresponding to one downlink-to-uplink switching position in the uplink and downlink configuration period, and the one downlink-to-uplink switching position is any one downlink-to-uplink switching position in the uplink and downlink configuration period; or, the fourth indication information includes the number of at least one continuous downlink time domain symbol in a downlink time period corresponding to one downlink-to-uplink switching position in the uplink and downlink configuration period, and the position of an initial time domain symbol in the at least one continuous downlink time domain symbol, where the one downlink-to-uplink switching position is any one downlink-to-uplink switching position in the uplink and downlink configuration period; or, the fourth indication information includes a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, and the downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the fourth indication information includes a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, and the number of the at least one continuous downlink time domain symbol, where the downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the fourth indication information includes a position of an initial time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to one downlink-to-uplink conversion position in the uplink and downlink configuration period, and the one downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the fourth indication information includes a position of a starting time domain symbol and a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to a downlink-to-uplink transition position in the uplink and downlink configuration period, where the downlink-to-uplink transition position is any one downlink-to-uplink transition position in the uplink and downlink configuration period.

In one possible design, the determining, by the fourth indication information, the first downlink time domain symbol according to the fourth indication information includes determining, by the fourth indication information, a number of at least one consecutive downlink time domain symbol in a downlink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration cycle, where the determining includes: determining the first downlink time domain symbol according to the fourth indication information and a predetermined position of a last time domain symbol in the at least one continuous downlink time domain symbol; or, the fourth indication information includes a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period after a downlink-to-uplink conversion position in the uplink and downlink configuration period, and determining the first downlink time domain symbol according to the fourth indication information includes: and determining the first downlink time domain symbol according to the fourth indication information and a predetermined position of a starting time domain symbol in the at least one continuous uplink time domain symbol.

In one possible design, the fourth indication information includes the number of at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period; or, the fourth indication information includes the number of at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration cycle, and the position of the starting time domain symbol in the at least one continuous downlink time domain symbol in the downlink time period corresponding to each downlink-to-uplink conversion position; or, the fourth indication information includes a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink switching position in the uplink and downlink configuration period, and the downlink-to-uplink switching position is any one downlink-to-uplink switching position in the uplink and downlink configuration period; or, the fourth indication information includes a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration cycle, and a number of at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position.

In one possible design, the method further includes: and sending sixth indication information, where the sixth indication information is used to indicate a first parameter or is used to indicate a difference value, where the first parameter is used to determine downlink sending power used on the first downlink time domain symbol, the difference value is a difference value between downlink sending power used on a second downlink time domain symbol and downlink sending power used on the downlink uplink time domain symbol, and the second downlink time domain symbol includes other downlink time domain symbols in the at least one uplink and downlink configuration period except the first downlink time domain symbol. Correspondingly, the method further comprises the following steps: receiving, from the network device, sixth indication information, where the sixth indication information includes the first parameter, or where the sixth indication information includes a difference between downlink transmission power used on the second downlink time domain symbol and downlink transmission power used on the first downlink time domain symbol.

In one possible design, the sending the fourth indication information includes: and sending a system message, wherein the system message comprises the first indication information. Correspondingly, the fourth indication information is received from the network device, and comprises: receiving a system message from the network device, the system message including the fourth indication information.

The third indication information of the fifth aspect or the sixth aspect may be the same concept as the first indication information of the first aspect or the second aspect, and the fourth indication information of the fifth aspect or the sixth aspect, the second indication information described in the third aspect or the fourth aspect may be the same concept, the fifth indication information described in the fifth aspect or the sixth aspect, the second indication information may be the same concept as that described in the first aspect or the second aspect, the sixth indication information described in the fifth aspect or the sixth aspect, the second indication information may be the same concept as that described in the third aspect or the fourth aspect, the first uplink time domain symbol described in the fifth aspect or the sixth aspect, the first uplink time domain symbol according to the first aspect or the second aspect may be the same concept, and the first downlink time domain symbol according to the fifth aspect or the sixth aspect may be the same concept as the first downlink time domain symbol according to the third aspect or the fourth aspect. Thus, for an introduction to the technical effect of the fifth or sixth aspect or any one of the possible designs, reference may be made to the introduction to the technical effect of the first, second, third, fourth, any one of the possible designs of the first or first aspect, or any one of the possible designs of the third or fourth aspect.

In a seventh aspect, a first communication device is provided, for example, the first communication device described in the foregoing, for example, a network device. The communication device has the function of realizing the network equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processing module and a transceiver module. The processing module and the transceiver module may perform the corresponding functions in the method provided in the first aspect or any one of the possible implementations of the first aspect.

In an eighth aspect, a second communication device is provided, for example, the second communication device described in the foregoing, such as a terminal device. The communication device has the function of realizing the terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processing module and a transceiver module. The processing module and the transceiver module may perform the corresponding functions in the method provided by the second aspect or any one of the possible implementations of the second aspect.

A tenth aspect provides a first communication system, which may include the first communication apparatus of the seventh aspect and the second communication apparatus of the eighth aspect.

In an eleventh aspect, a third communication device is provided, for example the third communication device described in the foregoing, for example a network device. The communication device is a function of the network equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processing module and a transceiver module. The processing module and the transceiver module may perform corresponding functions in the method provided by the third aspect or any one of the possible implementations of the third aspect.

In a twelfth aspect, a fourth communication device is provided, for example, the fourth communication device described in the foregoing, for example, a terminal equipment. The communication device has the function of realizing the terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processing module and a transceiver module. The processing module and the transceiver module may perform the corresponding functions in the method provided by the fourth aspect or any one of the possible implementations of the fourth aspect.

In a thirteenth aspect, there is provided a second communication system, which may include the third communication apparatus according to the eleventh aspect and the fourth communication apparatus according to the twelfth aspect.

In a fourteenth aspect, a fifth communication device is provided, for example, the fifth communication device described in the foregoing, for example, a network device. The communication device is a function of the network equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processing module and a transceiver module. The processing module and the transceiver module may perform the corresponding functions in the method provided by any one of the above-mentioned fifth aspect or the possible implementation manner of the fifth aspect.

In a fifteenth aspect, a sixth communication device is provided, for example, the sixth communication device described in the foregoing, for example, a terminal equipment. The communication device has the function of realizing the terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processing module and a transceiver module. The processing module and the transceiver module may perform the corresponding functions in the method provided by the sixth aspect or any one of the possible implementations of the sixth aspect.

A sixteenth aspect provides a third communication system, which may include the fifth communication apparatus of the fourteenth aspect and the sixth communication apparatus of the fifteenth aspect.

In a seventeenth aspect, a seventh communication device is provided, for example, the first communication device described in the foregoing, for example, a network device. The communication device has the function of realizing the network equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processor and a transceiver. The processor and the transceiver may perform the respective functions in the method provided by the first aspect or any one of the possible implementations of the first aspect. The transceiver is implemented as a communication interface, for example, and the communication interface is understood as a radio frequency transceiver component in the network device.

In an eighteenth aspect, an eighth communication device is provided, for example, the second communication device described in the foregoing, for example, a terminal equipment. The communication device has the function of realizing the terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processor and a transceiver. The processor and the transceiver may perform the respective functions in the method provided by the second aspect or any one of the possible implementations of the second aspect. The transceiver is implemented as a communication interface, for example, which may be understood as a radio frequency transceiver component in the terminal device.

A nineteenth aspect provides a fourth communication system, which may include the seventh communication device of the seventeenth aspect and the eighth communication device of the eighteenth aspect.

A twentieth aspect provides a ninth communications apparatus, for example a third communications apparatus as described in the foregoing, for example a network device. The communication device has the function of realizing the network equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processor and a transceiver. The processor and the transceiver may perform the respective functions in the methods provided by the third aspect or any one of the possible implementations of the third aspect. The transceiver is implemented as a communication interface, for example, and the communication interface is understood as a radio frequency transceiver component in the network device.

In a twenty-first aspect, a tenth communication apparatus is provided, for example, the fourth communication apparatus described in the foregoing, for example, a terminal device. The communication device has the function of realizing the terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processor and a transceiver. The processor and the transceiver may perform the respective functions in the method provided by the fourth aspect or any one of the possible implementations of the fourth aspect. The transceiver is implemented as a communication interface, for example, which may be understood as a radio frequency transceiver component in the terminal device.

A twenty-second aspect provides a fifth communication system, which may comprise the ninth communication apparatus of the twentieth aspect and the tenth communication apparatus of the twenty-first aspect.

A twenty-third aspect provides an eleventh communication device, for example the fifth communication device, for example a network device, as described in the foregoing. The communication device has the function of realizing the network equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processor and a transceiver. The processor and the transceiver may perform the respective functions in the methods provided by the fifth aspect or any one of the possible implementations of the fifth aspect. The transceiver is implemented as a communication interface, for example, and the communication interface is understood as a radio frequency transceiver component in the network device.

A twenty-fourth aspect provides a twelfth communication device, for example, the sixth communication device, for example, a terminal equipment, as described in the foregoing. The communication device has the function of realizing the terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processor and a transceiver. The processor and the transceiver may perform the respective functions in the methods provided by the sixth aspect or any one of the possible implementations of the sixth aspect. The transceiver is implemented as a communication interface, for example, which may be understood as a radio frequency transceiver component in the terminal device.

A twenty-fifth aspect provides a sixth communication system, which may include the eleventh communication apparatus of the twenty-third aspect and the twelfth communication apparatus of the twenty-fourth aspect.

In a twenty-sixth aspect, a thirteenth communications apparatus is provided. The communication device may be the first communication device in the above method design, such as a network device, or a chip disposed in the network device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the thirteenth communication device to perform the method of the first aspect or any one of the possible implementations of the first aspect.

For example, the thirteenth communication apparatus may further include a communication interface, and if the thirteenth communication apparatus is a network device, the communication interface may be a transceiver in the network device, such as a radio frequency transceiver component in the network device, or if the thirteenth communication apparatus is a chip disposed in the network device, the communication interface may be an input/output interface of the chip, such as an input/output pin, and the like.

A twenty-seventh aspect provides a fourteenth communications apparatus. The communication device may be the second communication device in the above method design, such as a terminal device, or a chip disposed in the terminal device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the fourteenth communication device to perform the method of the second aspect or any one of the possible embodiments of the second aspect.

For example, the fourteenth communication apparatus may further include a communication interface, and if the fourteenth communication apparatus is a terminal device, the communication interface may be a transceiver in the terminal device, such as a radio frequency transceiver component in the terminal device, or if the fourteenth communication apparatus is a chip disposed in the terminal device, the communication interface may be an input/output interface of the chip, such as an input/output pin, and the like.

A twenty-eighth aspect provides a seventh communication system, which may include the thirteenth communication device of the twenty-sixth aspect and the fourteenth communication device of the twenty-seventh aspect.

In a twenty-ninth aspect, a fifteenth communications apparatus is provided. The communication device may be the third communication device in the above method design, such as a network device, or a chip disposed in the network device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the fifteenth communication device to perform the method of the third aspect or any one of the possible embodiments of the third aspect.

For example, the fifteenth communication apparatus may further include a communication interface, and if the fifteenth communication apparatus is a network device, the communication interface may be a transceiver in the network device, such as a radio frequency transceiver component in the network device, or if the fifteenth communication apparatus is a chip disposed in the network device, the communication interface may be an input/output interface of the chip, such as an input/output pin, and the like.

In a thirtieth aspect, a sixteenth communication device is provided. The communication device may be the fourth communication device designed in the above method, such as a terminal device, or a chip disposed in the terminal device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the sixteenth communication device to perform the method of the fourth aspect or any one of the possible embodiments of the fourth aspect.

For example, the sixteenth communication device may further include a communication interface, and if the sixteenth communication device is a terminal device, the communication interface may be a transceiver in the terminal device, for example, a radio frequency transceiver component in the terminal device, or if the sixteenth communication device is a chip disposed in the terminal device, the communication interface may be an input/output interface of the chip, for example, an input/output pin, and the like.

A thirty-first aspect provides a communications system of an eighth type, which may comprise the fifteenth type of communications apparatus of the twenty-ninth aspect and the sixteenth type of communications apparatus of the thirty-first aspect.

A thirty-second aspect provides a seventeenth communications device. The communication device may be a fifth communication device designed in the method, such as a network device, or a chip disposed in the network device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the seventeenth communication device to perform the method of any one of the possible embodiments of the fifth aspect or the fifth aspect described above.

For example, the seventeenth communication device may further include a communication interface, and if the seventeenth communication device is a network device, the communication interface may be a transceiver in the network device, such as a radio frequency transceiver component in the network device, or if the seventeenth communication device is a chip disposed in the network device, the communication interface may be an input/output interface of the chip, such as an input/output pin, and the like.

A thirty-third aspect provides an eighteenth communication device. The communication device may be the sixth communication device designed in the method, such as a terminal device, or a chip disposed in the terminal device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the eighteenth communication device to perform the method of the sixth aspect or any one of the possible embodiments of the sixth aspect.

For example, the eighteenth kind of communication device may further include a communication interface, and if the eighteenth kind of communication device is a terminal device, the communication interface may be a transceiver in the terminal device, such as a radio frequency transceiving component in the terminal device, or if the eighteenth kind of communication device is a chip disposed in the terminal device, the communication interface may be an input/output interface of the chip, such as an input/output pin, and the like.

A thirty-fourth aspect provides a ninth communication system, which may include the seventeenth communication device of the thirty-second aspect and the eighteenth communication device of the thirty-third aspect.

A thirty-fifth aspect provides a computer storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method as set forth in the first aspect or any one of the possible designs of the first aspect.

A thirty-sixth aspect provides a computer storage medium having stored therein instructions which, when run on a computer, cause the computer to perform the method as set forth in the second aspect or any one of the possible designs of the second aspect.

A thirty-seventh aspect provides a computer storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method as set forth in the third aspect or any one of the possible designs of the third aspect.

In a thirty-eighth aspect, there is provided a computer storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method of the fourth aspect described above or any one of the possible designs of the fourth aspect.

A thirty-ninth aspect provides a computer storage medium having stored therein instructions which, when run on a computer, cause the computer to perform the method as set forth in the fifth aspect or any one of the possible designs of the fifth aspect.

Fortieth, there is provided a computer storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the method as set forth in the sixth aspect or any one of the possible designs of the sixth aspect.

Fortieth aspect, a computer program product is provided comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method as set forth in the above first aspect or any one of the possible designs of the first aspect.

A forty-second aspect provides a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method as set forth in the second aspect or any one of the possible designs of the second aspect.

A forty-third aspect provides a computer program product containing instructions stored thereon, which when run on a computer, cause the computer to perform the method as set forth in the third aspect or any one of the possible designs of the third aspect.

A forty-fourth aspect provides a computer program product containing instructions stored thereon, which when run on a computer, cause the computer to perform the method as set forth in the fourth aspect or any one of the possible designs of the fourth aspect.

A forty-fifth aspect provides a computer program product containing instructions stored thereon, which when run on a computer, cause the computer to perform the method as set forth in the fifth aspect or any one of the possible designs of the fifth aspect.

A forty-sixth aspect provides a computer program product containing instructions stored thereon, which when run on a computer, cause the computer to perform the method of the sixth aspect or any one of the possible designs of the sixth aspect.

In the embodiment of the application, the first indication information may be determined and sent, and the first indication information is used for indicating the first uplink time domain symbol, so that interference from other network devices on the first uplink time domain symbol may be reduced, and the uplink sending success rate may be improved.

Drawings

FIGS. 1A-1D are schematic diagrams of four frame structure configurations;

FIG. 2 is a diagram illustrating co-channel interference between network devices;

FIG. 3 is a schematic diagram of long-range interference between network devices;

fig. 4 is a schematic diagram of avoiding long-distance interference between network devices by means of lengthening a guard interval;

fig. 5 is a schematic view of an application scenario according to an embodiment of the present application;

fig. 6 is a flowchart of an information sending and receiving method according to an embodiment of the present application;

fig. 7 is a schematic diagram of an uplink time period indicated by first indication information in an embodiment of the present application;

fig. 8 is a flowchart of another information sending and receiving method according to an embodiment of the present application;

fig. 9 is a schematic diagram of a downlink time period indicated by first indication information in an embodiment of the present application;

fig. 10 is a flowchart of another information sending and receiving method according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a communication apparatus capable of implementing functions of a network device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a communication apparatus capable of implementing functions of a terminal device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a communication apparatus capable of implementing functions of a network device according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a communication apparatus capable of implementing functions of a terminal device according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of a communication apparatus capable of implementing functions of a network device according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of a communication apparatus capable of implementing functions of a terminal device according to an embodiment of the present application;

fig. 17A to 17B are two schematic diagrams of a communication device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

Hereinafter, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

1) Terminal equipment, including devices that provide voice and/or data connectivity to a user, may include, for example, handheld devices with wireless connection capability or processing devices connected to wireless modems. The terminal device may communicate with a core network via a Radio Access Network (RAN), exchanging voice and/or data with the RAN. The terminal device may include a User Equipment (UE), a wireless terminal device, a mobile terminal device, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an Access Point (AP), a remote terminal device (remote), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), a user equipment (user device), or the like. For example, mobile phones (or so-called "cellular" phones), computers with mobile terminal equipment, portable, pocket, hand-held, computer-included or vehicle-mounted mobile devices, smart wearable devices, and the like may be included. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. Also included are constrained devices, such as devices that consume less power, or devices that have limited storage capabilities, or devices that have limited computing capabilities, etc. Examples of information sensing devices include bar codes, Radio Frequency Identification (RFID), sensors, Global Positioning Systems (GPS), laser scanners, and the like.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets, smart helmets, smart jewelry and the like for monitoring physical signs.

2) A network device, e.g., including a base station (e.g., access point), may refer to a device in an access network that communicates over the air, through one or more cells, with wireless terminal devices. The network device may be configured to interconvert received air frames and Internet Protocol (IP) packets as a router between the terminal device and the rest of the access network, which may include an IP network. The network device may also coordinate attribute management for the air interface. For example, the network device may include an evolved Node B (NodeB or eNB or e-NodeB) in an LTE system or LTE-a, or may also include a next generation Node B (gNB) in a fifth generation mobile communication technology (5G) NR system, or may also include a Centralized Unit (CU) and a Distributed Unit (DU) in a cloud access network (clouded radio access network) system, which is not limited in the embodiments of the present application.

3) The terms "system" and "network" in the embodiments of the present application may be used interchangeably. The "plurality" means two or more, and in view of this, the "plurality" may also be understood as "at least two" in the embodiments of the present application. "at least two" is to be understood as meaning two or more, for example two, three or more. "at least one" is to be understood as meaning one or more, for example one, two or more. For example, including at least one means including one, two, or more, and does not limit which ones are included, for example, including at least one of A, B and C, then including may be A, B, C, A and B, A and C, B and C, or a and B and C. Similarly, the understanding of the description of "at least one" and the like is similar. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified.

Unless stated to the contrary, the embodiments of the present application refer to the ordinal numbers "first", "second", etc., for distinguishing between a plurality of objects, and do not limit the sequence, timing, priority, or importance of the plurality of objects.

Having described some concepts related to embodiments of the present application, the following description will be given of features related to embodiments of the present application.

In a wireless communication system, communications can be classified into different types according to the kinds of a transmitting node and a receiving node. Generally, sending information from a network device to a terminal device is called downlink communication, and sending information from a terminal device to a network device is called uplink communication. In Long Term Evolution (LTE), long term evolution advanced (LTE-a), and New Radio (NR) systems, Frequency Division Duplex (FDD) and TDD modes may be mainly used according to different duplex modes.

For a wireless communication system operating in FDD mode, the system typically comprises two paired frequency bands for communication, one for downlink communication from network device to terminal device and the other for uplink communication from terminal device to network device.

For a wireless communication system operating in TDD mode, the system usually includes only one operating band, so the operating band is also called an unpaired operating band. For a system using unpaired frequency bands, the whole working frequency band is only used for downlink communication or only used for uplink communication in an area covered by the same network device in a period of time, and the network device configures a frame structure for determining the time periods for downlink communication and uplink communication. Fig. 1A is a typical frame structure configuration, in which time slots numbered 0, 1, 2, 5, 6, and 7 in fig. 1A are downlink communication time slots, time slots numbered 4 and 9 are uplink communication time slots, and time slots numbered 3 and 8 include a part of a downlink time slot, a part of an uplink time slot, and a part of an unknown time slot, wherein the unknown time slot may be understood as a time slot that is not used for uplink communication and is not used for downlink communication temporarily. The unknown time period may be understood as a flexible time period, i.e. the part of the time period may be flexibly used for uplink communication or downlink communication. In general, the time slots similar to the time slots numbered 3 and 8 may be referred to as special time slots, and it should be noted that the special time slots are only named for such time slots and are used for distinguishing from the downlink time slots and the uplink time slots, and are not limited thereto. In addition, it takes a certain time when the hardware of the network device and the terminal device switches from downlink communication to uplink communication, so that an unknown time period required to be configured in a special time slot can be used as a guard interval, so that the network device and the terminal device complete the downlink-to-uplink switching.

Further, the time length of each timeslot in fig. 1A may be 1ms, 0.5ms, 0.25ms, and the like, and the specific value is related to the subcarrier interval of the network device. For example, when the subcarrier interval is 15kHz, the time length of one slot is 1ms, when the subcarrier interval is 0.5ms, the time length of one slot is 0.5ms, and so on. Taking the length of one timeslot as 0.5ms as an example, the total length of the timeslot 0 to the timeslot 4 is 2.5ms, the total length of the timeslot 5 to the timeslot 9 is also 2.5ms, and the distribution of the timeslots included in the two is the same, that is, the uplink and downlink configuration period of the frame structure is 2.5 ms. It should be noted that the uplink and downlink configuration period may be understood as an absolute time, such as 2.5ms, 5ms, and the like, and may also be understood as the number of included slots, such as 5 slots, 10 slots, and the like. Still 10 slots are included in fig. 1B, and compared to fig. 1A, the number of unknown symbols in special slot 8 in fig. 1B is different from the number of unknown symbols in special slot 3. It should be noted that, from the perspective of the frame structure, the uplink and downlink configuration period of the frame structure in fig. 1B should be 5ms, or 10 timeslots; however, from the view of the period of uplink to downlink conversion, the conversion from uplink to downlink can be completed every 2.5ms, so the uplink and downlink configuration period can also be considered to be 2.5 ms. Similarly, in the frame structure shown in fig. 1C, the number of the downlink time slots and the number of the uplink time slots in the first 5 time slots and the number of the downlink time slots in the last 5 time slots are different, and the positions of the special time slots are also different, and from the viewpoint of the frame structure, the uplink and downlink configuration period should be 5ms, that is, 10 time slots; however, from the view of the period of uplink to downlink conversion, the conversion from uplink to downlink can be completed every 2.5ms, so the uplink and downlink configuration period can also be considered to be 2.5 ms. However, in the frame structure shown in fig. 1D, both from the viewpoint of the frame structure and from the viewpoint of the uplink and downlink configuration period, the uplink and downlink configuration period is 5ms, i.e., 10 slots. In order to avoid the above ambiguity, the uplink and downlink configuration periods in the embodiments of the present application all use the same understanding, which may be understood from the perspective of a frame structure, the frame structure in each uplink and downlink configuration period is completely the same, or may be understood from the perspective of uplink to downlink conversion time, and is not limited thereto.

When two network devices are not synchronized, different network devices are in downlink communication and uplink communication at the same time, so that the network device performing downlink communication interferes with the network device performing uplink communication.

For example, referring to fig. 2, two network devices in fig. 2 are adjacent network devices, a right network device 2 performs downlink communication with a terminal device 2, and at the same time, a left network device 1 performs uplink communication with the terminal device 1, so that the network device 2 performing downlink communication causes strong co-channel interference to the network device 1 performing uplink communication. Therefore, for a TDD network deployed by the same operator, the frame structure configuration of all network devices is generally the same, and the transmission timing and the reception timing are the same, i.e. all network devices are synchronized to avoid interference between network devices in close geographic locations. When the network devices are synchronized, different network devices can only be in downlink communication or uplink communication at the same time without interference.

However, synchronization between network devices can only ensure that there is no interference between network devices located at close geographical locations, whereas for two network devices located at far geographical locations, due to propagation delay of wireless communication, when a downlink signal of network device a arrives at network device B, network device B may already be in an uplink transmission time, and the downlink signal may cause interference to uplink communication of network device B, which is generally referred to as long-distance interference. As shown in fig. 3, when a downlink signal of a network device a reaches a network device B, the network device B is already in an uplink transmission time in a special time slot, although the distance between the network device a and the network device B is long, and power loss of a wireless signal due to the distance is large, the downlink transmission power of the network device during downlink communication is often large, so that the power of an interference signal received by the network device B is still large, and a large loss is caused to the performance of uplink communication of the network device B.

In order to avoid interference between network devices located at relatively long geographical distances, a network device in the prior art may configure a larger guard interval for a special timeslot, so that a downlink signal of network device a arrives at network device B. It will only fall within the guard interval and not within the uplink transmission time, so as to avoid interference to the uplink communication of network device B, as shown in fig. 4.

However, in this way, the time resource originally available for downlink communication or the time resource originally available for uplink communication in the special timeslot is changed into the guard interval, which undoubtedly reduces the downlink time resource available for downlink communication or uplink communication of the network device, which will reduce the downlink capacity or uplink capacity of the network device.

In view of this, providing the technical solution of the embodiment of the present application, in the embodiment of the present application, the network device may send the first indication information to indicate the first uplink time domain symbol, for example, the first uplink time domain symbol is an uplink time domain symbol that is interfered by other network devices, and after determining the first uplink time domain symbol, the terminal device may take corresponding measures to reduce interference, for example, may increase uplink transmission power on the first uplink time domain symbol, or may select to send an uplink signal in another uplink time period instead of sending the uplink signal on the first uplink time domain symbol, and so on.

The embodiment of the present application may be applied to an LTE system, or may be applied to an NR system, or may also be applied to other communication systems, for example, a next generation mobile communication system.

In the foregoing, the problems existing at present are introduced, and a communication system to which the embodiment of the present application may be applied is introduced, and an application scenario of the embodiment of the present application, or a network architecture to which the embodiment of the present application is applied, is described below, please refer to fig. 5.

Fig. 5 includes a network device and a terminal device, where the terminal device can perform air interface communication with the network device. Of course, the number of the terminal devices in fig. 5 is only an example, in practical applications, the network device may provide services for a plurality of terminal devices, and all or part of the terminal devices in the plurality of terminal devices may communicate with the network device. The transmission between the network device and the terminal device may be transmitted by radio waves, or may be transmitted by visible light, laser, infrared, optical quantum, power lines, optical fibers, coaxial cables, copper strands, or the like.

The network device in fig. 5 is, for example, AN Access Network (AN) device, such as a base station. The access network device corresponds to different devices in different systems, for example, the access network device may correspond to an eNB in a fourth generation mobile communication technology (4G) system, and the access network device corresponds to an access network device in a 5G system, for example, a gNB in a fifth generation mobile communication technology (5G) system, and similarly, other devices may also correspond to other communication systems.

The technical scheme provided by the embodiment of the application is described below with reference to the accompanying drawings.

An embodiment of the present application provides a method for sending and receiving information, please refer to fig. 6, which is a flowchart of the method. In the following description, the method is applied to the network architecture shown in fig. 5 as an example. In addition, the method may be performed by two communication devices, for example, a first communication device and a second communication device, where the first communication device may be a network device or a communication device capable of supporting the network device to implement the functions required by the method, and may also be other communication devices, such as a system on chip. The same applies to the second communication device, which may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, but may also be other communication devices, such as a system-on-chip. And the implementation manners of the first communication device and the second communication device are not limited, for example, the first communication device is a network device, the second communication device is a terminal device, or the first communication device is a network device, the second communication device is a communication device capable of supporting the terminal device to implement the functions required by the method, and so on. The network device is, for example, a base station.

For convenience of introduction, in the following, the method is performed by a network device and a terminal device as an example, that is, the first communication apparatus is a network device and the second communication apparatus is a terminal device as an example. For example, the network device is a network device in the network architecture shown in fig. 5, and the terminal device is a terminal device in the network architecture shown in fig. 5.

S61, the network device determines first indication information, where the first indication information is used to indicate a first uplink time domain symbol, and the first uplink time domain symbol is at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration period.

First, the network device may determine a first uplink time domain symbol, where the first uplink time domain symbol is at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration period. The number of the uplink and downlink configuration periods may be at least one, and the positions of the uplink time domain symbols belonging to the first uplink time domain symbol included in each uplink and downlink configuration period may be the same, so that the network device may determine at least one continuous uplink time domain symbol in the uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in any one uplink and downlink configuration period, or, the positions of the uplink time domain symbols belonging to the first uplink time domain symbol included in different uplink and downlink configuration periods may also be different, the network device may determine at least one continuous uplink time domain symbol in the uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in each uplink and downlink configuration period, respectively, to determine the first uplink time domain symbol.

As used herein, the uplink time period corresponding to the downlink-to-uplink switching position may be understood as the first uplink time period after the downlink-to-uplink switching position. In one uplink and downlink configuration cycle, one downlink-to-uplink conversion position may be included, or two or more downlink-to-uplink conversion positions may be included, where each downlink-to-uplink conversion position is preceded by a downlink time domain symbol, and each downlink-to-uplink conversion position is followed by an uplink time domain symbol, and if one uplink and downlink configuration cycle only includes one downlink-to-uplink conversion position, an uplink time period corresponding to the downlink-to-uplink conversion position is an uplink time period located after the downlink-to-uplink conversion position in the uplink and downlink configuration cycle. Referring to fig. 1D, in the uplink and downlink configuration cycle, only one downlink-to-uplink transition position is included, and the uplink time period corresponding to the downlink-to-uplink transition position includes an uplink symbol in the time slot 7, an uplink time slot 8, and an uplink time slot 9. If a downlink configuration cycle includes a plurality of downlink-to-uplink conversion positions, for a first downlink-to-uplink conversion position, an uplink time period corresponding to the first downlink-to-uplink conversion position is an uplink time period from a first uplink time domain symbol after the first downlink-to-uplink conversion position to a first uplink time domain symbol before a next downlink-to-uplink conversion position in the uplink configuration cycle, for a downlink-to-uplink conversion position located in the middle of the uplink configuration cycle, the definition of the corresponding uplink time period is the same, and for a last downlink-to-uplink conversion position in the uplink configuration cycle, an uplink time period corresponding to the last downlink-to-uplink conversion position is an uplink time period from a first uplink time domain symbol after the last downlink-to-uplink conversion position to a last uplink time domain symbol included in the uplink configuration cycle . Referring to fig. 1C, the uplink and downlink configuration period includes two downlink-to-uplink conversion positions, which are respectively located in the time slot 3 and the time slot 7, so that the uplink time period corresponding to the downlink-to-uplink conversion position in the time slot 3 includes the uplink symbol and the uplink time slot 4 in the time slot 3, and the uplink time period corresponding to the downlink-to-uplink conversion position in the time slot 7 includes the uplink symbol, the uplink time slot 8, and the uplink time slot 9 in the time slot 7.

In various embodiments herein, the time domain symbol is, for example, an Orthogonal Frequency Division Multiplexing (OFDM) symbol. In addition, the position of the time domain symbol described in the embodiment of the present application may also be replaced by an index of the time domain symbol.

For example, the network device may be subjected to long-range interference on the first uplink time domain symbol, that is, the network device may be subjected to interference of downlink signals transmitted by other network devices on the first uplink time domain symbol. For example, the network device may determine the first uplink time domain symbol in advance through measurement, or determine the first uplink time domain symbol in other manners.

After the network device determines the first uplink time domain symbol, in order to notify the terminal device of the first uplink time domain symbol, the network device may determine indication information, for example, referred to as first indication information, for indicating the first uplink time domain symbol.

The first indication information may be indicated in various ways, which are described below by way of example.

As a first optional implementation manner of the first indication information, the first indication information may include the number of at least one continuous uplink time domain symbol in an uplink time period corresponding to one downlink-to-uplink conversion position in the uplink and downlink configuration period, and a position of a starting time domain symbol in the at least one continuous uplink time domain symbol, where the one downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period. In this case, in the uplink time domain symbols included in the first uplink time domain symbol, the number of at least one continuous uplink time domain symbol in each uplink time period in the uplink and downlink configuration period is the same, and if the uplink time domain symbols included in the first uplink and downlink time domain symbols are located in a plurality of uplink and downlink configuration periods, the number of at least one continuous uplink time domain symbol in each uplink time period in each uplink and downlink configuration period is the same. That is to say, in the uplink and downlink configuration period, the number and the position of at least one continuous uplink symbol included in the uplink time period corresponding to each downlink-to-uplink conversion position are the same, so that the terminal device can determine the first uplink time domain symbol only by indicating the number of at least one continuous uplink time domain symbol in the uplink time period corresponding to one of the downlink-to-uplink conversion positions and the position of the starting time domain symbol in the at least one continuous uplink time domain symbol by the first indication information. In this context, the position of the time domain symbol may be understood (or replaced) by, for example, an index (index) of the time domain symbol, or there may be other meanings, in any case, for uniquely determining one time domain symbol. The first indication information includes a starting time domain symbol in the at least one consecutive uplink time domain symbol, and specifically, may be a position including the starting time domain symbol in the at least one consecutive uplink time domain symbol, and include a position of the time domain symbol, for example, an index including the time domain symbol. The method includes determining an index of a starting time domain symbol in at least one continuous uplink time domain symbol, and determining the index of the starting time domain symbol in the at least one continuous uplink time domain symbol according to a reference index, wherein the index of the starting time domain symbol in the at least one continuous uplink time domain symbol is determined by using the index of the reference time domain symbol as the reference index. Or, a reference position is first determined, where the reference position is a position of a reference time domain symbol, so as to determine a position of a starting time domain symbol in at least one consecutive uplink time domain symbol according to the reference position. In the following, an example of the selection of the reference time domain symbol is described.

For example, the reference time domain symbol may be any one time domain symbol in one uplink and downlink configuration period, that is, the reference position may be a position of any one time domain symbol in one uplink and downlink configuration period, and then, a position of a starting time domain symbol in the at least one continuous uplink time domain symbol may be determined by using a position of any one time domain symbol in the uplink and downlink configuration period where the at least one continuous uplink time domain symbol is located as the reference position.

Or, in an uplink and downlink configuration period, the uplink time domain symbol generally starts after the downlink-to-uplink conversion position, and therefore, the position of the starting time domain symbol in at least one continuous uplink time domain symbol in the uplink time period corresponding to the uplink-to-downlink conversion position in the uplink configuration period may be determined by using the position of the first uplink time domain symbol after the downlink-to-uplink conversion position as a reference position, that is, the reference time domain symbol is the first uplink time domain symbol after the uplink-to-downlink conversion position, and the reference index is the index of the first uplink time domain symbol after the uplink-to-downlink conversion position.

Or, the position of the starting time domain symbol in at least one continuous uplink time domain symbol in the uplink time period corresponding to the uplink-to-downlink conversion position in one uplink and downlink configuration period may be determined by using the position of the first downlink time domain symbol in the one uplink and downlink configuration period as a reference position, that is, the reference time domain symbol is the first downlink time domain symbol in the one uplink and downlink configuration period, and the reference index is the index of the first downlink time domain symbol in the one uplink and downlink configuration period. In one uplink and downlink configuration period, generally, the downlink time domain symbol is located in front, and then the first downlink time domain symbol in one uplink and downlink configuration period, that is, the first time domain symbol in one uplink and downlink configuration period, is used as a reference time domain symbol, so that the manner of determining the index of other time domain symbols is simpler.

Referring to fig. 7, fig. 7 shows an uplink and downlink configuration period, which includes 5 slots (slots) as an example, wherein, the 1 st time slot, the 2 nd time slot and the 3 rd time slot are all downlink time slots, the 4 th time slot is a special time slot, the 5 th time slot is an uplink time slot, each time slot comprises 14 time domain symbols, the index of 14 time domain symbols included in one slot may be from 0 to 13, and the special slot sequentially includes 10 downlink time domain symbols, 2 time domain symbols as a guard interval, and 2 uplink time domain symbols from left to right, that is, the uplink and downlink configuration cycle includes a downlink-to-uplink conversion position, and the uplink time period corresponding to the downlink-to-uplink conversion position includes 2 uplink time domain symbols in the special time slot and all uplink time domain symbols in the 5 th time slot. At least one continuous uplink time domain symbol included in the uplink time segment corresponding to the downlink-to-uplink conversion position starts from, for example, the first uplink time domain symbol located after the downlink-to-uplink conversion position in the special time slot in fig. 7, and ends at the fourth time domain symbol (the time domain symbol with the index of 3 in the uplink time slot) of the uplink time slot, the rectangular frame with the horizontal line in fig. 7 represents the downlink time domain symbol, and the rectangular frame with the oblique line represents the uplink time domain symbol. Then, if the reference position is the position of the first uplink time domain symbol after the downlink-to-uplink transition position, the network device may determine that an index of a starting time domain symbol of at least one consecutive uplink time domain symbol included in the uplink time period corresponding to the downlink-to-uplink transition position is 0, that is, an index of a starting time domain symbol of at least one consecutive uplink time domain symbol included in the uplink time period corresponding to the downlink-to-uplink transition position included in the first indication information is 0, and the number of at least one consecutive uplink time domain symbol included in the uplink time period corresponding to the downlink-to-uplink transition position is 6; or, if the reference position is the position of the first downlink time domain symbol in the uplink and downlink configuration period, the network device may determine that an index of a start time domain symbol of at least one consecutive uplink time domain symbol included in the uplink time period corresponding to the downlink-to-uplink conversion position is 54, that is, an index of a start time domain symbol of at least one consecutive uplink time domain symbol included in the uplink time period corresponding to the downlink-to-uplink conversion position included in the first indication information is 54, and the number of at least one consecutive uplink time domain symbol included in the uplink time period corresponding to the downlink-to-uplink conversion position is 6.

As a second optional implementation manner of the first indication information, the first indication information may include a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to one downlink-to-uplink conversion position in the uplink configuration cycle, and a number of the at least one continuous uplink time domain symbol in the uplink time period corresponding to the one downlink-to-uplink conversion position. In this case, in the uplink time domain symbols included in the first uplink time domain symbol, the number of at least one continuous uplink time domain symbol in each uplink time period in the uplink and downlink configuration period is the same, and if the uplink time domain symbols included in the first uplink time domain symbol are located in a plurality of uplink and downlink configuration periods, the number of at least one continuous uplink time domain symbol in each uplink time period in each uplink and downlink configuration period is the same. Therefore, the terminal device can determine the first uplink time domain symbol only by indicating the number of at least one continuous uplink time domain symbol in the uplink time period corresponding to one downlink-to-uplink conversion position and the position of the last uplink time domain symbol in the at least one continuous uplink time domain symbol by the first indication information. The first indication information indicates a last time domain symbol in the at least one consecutive uplink time domain symbol, and specifically, may indicate a position of the last time domain symbol in the at least one consecutive uplink time domain symbol, and indicate a position of the time domain symbol, for example, an index indicating the time domain symbol. Wherein, to determine the index of the last time domain symbol in the at least one continuous uplink time domain symbol, a reference time domain symbol is first determined, the index of the reference time domain symbol is used as a reference index, and the index of the last time domain symbol in the at least one continuous uplink time domain symbol can be determined according to the reference index. Or, a reference position is first determined, where the reference position is a position of a reference time domain symbol, so as to determine a position of a last time domain symbol in at least one consecutive uplink time domain symbol according to the reference position. In the following, an example of the selection of the reference time domain symbol is described.

For example, the reference position may be a position of any time domain symbol in one uplink and downlink configuration period, that is, the reference position may be a position of any time domain symbol in one uplink and downlink configuration period, and then, a last time domain symbol in the at least one continuous uplink time domain symbol may be determined by using the position of any time domain symbol in the uplink and downlink configuration period where the at least one continuous uplink time domain symbol is located as the reference position.

Or, the position of the last time domain symbol in at least one continuous uplink time domain symbol in the uplink time period corresponding to one downlink-to-uplink conversion position in one uplink and downlink configuration cycle may be determined by using the position of the last uplink time domain symbol in the uplink time period corresponding to the one downlink-to-uplink conversion position as a reference position, that is, the reference time domain symbol is the last uplink time domain symbol in the uplink time period corresponding to the one downlink-to-uplink conversion position, and the reference index is the index of the last uplink time domain symbol in the uplink time period corresponding to the one downlink-to-uplink conversion position.

Continuing with fig. 7 as an example, if the reference position is the index of the last uplink time domain symbol in the uplink time period corresponding to the downlink-to-uplink transition position in fig. 7, the network device may determine that the index of the last uplink time domain symbol in the uplink time period corresponding to the downlink-to-uplink transition position is 16, that is, the index of the last uplink time domain symbol in the uplink time period corresponding to the downlink-to-uplink transition position included in the first indication information is 10, and the length of at least one consecutive uplink time domain symbol included in the uplink time period corresponding to the downlink-to-uplink transition position is 6.

As a third optional implementation manner of the first indication information, the first indication information may include a position of a first time domain symbol and a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period. In this case, in the uplink time domain symbols included in the first uplink time domain symbol, the number of at least one continuous uplink time domain symbol in each uplink time period in the uplink and downlink configuration period is the same, and if the uplink time domain symbols included in the first uplink time domain symbol are located in a plurality of uplink and downlink configuration periods, the number of at least one continuous uplink time domain symbol in each uplink time period in each uplink and downlink configuration period is the same. Therefore, the first indication information only needs to indicate a first uplink time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to one downlink-to-uplink conversion position and a last uplink time domain symbol in the at least one continuous uplink time domain symbol, and the terminal device can determine the first uplink time domain symbol. The first indication information indicates a first uplink time domain symbol and a last uplink time domain symbol in the at least one continuous uplink time domain symbol, and specifically, may indicate a position of the first uplink time domain symbol and a position of the last uplink time domain symbol in the at least one continuous uplink time domain symbol, and indicate a position of the time domain symbol, for example, an index indicating the time domain symbol. The index of the first uplink time domain symbol and the index of the last time domain symbol in the at least one continuous uplink time domain symbol are determined, a reference time domain symbol is determined first, the index of the reference time domain symbol is used as a reference index, and the index of the first uplink time domain symbol and the index of the last time domain symbol in the at least one continuous uplink time domain symbol can be determined according to the reference index. Or, a reference position is determined first, and the reference position is the position of the reference time domain symbol, so that the position of the first uplink time domain symbol and the position of the last uplink time domain symbol in at least one continuous uplink time domain symbol are determined according to the reference position. Regarding the selection manner of the reference time domain symbol, reference may be made to the description of the first optional implementation manner or the second optional implementation manner of the first indication information in the foregoing, which is not repeated herein.

As a fourth optional implementation manner of the first indication information, the first indication information may include the number of at least one continuous uplink time domain symbol in an uplink time period corresponding to one downlink-to-uplink transition position in the uplink and downlink configuration period, where the one downlink-to-uplink transition position is any one downlink-to-uplink transition position in the uplink and downlink configuration period. In this case, in the uplink time domain symbols included in the first uplink time domain symbol, the number of at least one continuous uplink time domain symbol in each uplink time period in the uplink and downlink configuration period is the same, and if the uplink time domain symbols included in the first uplink time domain symbol are located in a plurality of uplink and downlink configuration periods, the number of at least one continuous uplink time domain symbol in each uplink time period in each uplink and downlink configuration period is the same. Since the first indication information only indicates the length, it is further required to determine the position of the starting time domain symbol and/or the position of the last time domain symbol of the at least one consecutive uplink time domain symbol, that is, to determine the position of the starting time domain symbol of the at least one consecutive uplink time domain symbol, or to determine the position of the last time domain symbol of the at least one consecutive uplink time domain symbol, or to determine the position of the starting time domain symbol of the at least one consecutive uplink time domain symbol, and the position of the last time domain symbol of the at least one consecutive uplink time domain symbol. The position of the starting time domain symbol and/or the position of the last time domain symbol of the at least one continuous uplink time domain symbol may be specified by a predetermined rule, and in this case, the positions of the starting time domain symbol of the at least one continuous uplink time domain symbol in the uplink time period corresponding to different uplink and downlink conversion positions may be different or may be the same, or the positions of the last time domain symbol of the at least one continuous uplink time domain symbol in the uplink time period corresponding to different uplink and downlink conversion positions may be different or may be the same.

For example, the protocol may specify a position of a starting time domain symbol and/or a position of a last time domain symbol of the at least one consecutive uplink time domain symbol in advance. For example, if the index of the start time domain symbol of the at least one continuous uplink time domain symbol specified in the protocol is the index of the first uplink time domain symbol after the downlink-to-uplink conversion position corresponding to the uplink time period in which the at least one continuous uplink time domain symbol is located, or in other words, the index of the first uplink time domain symbol in the uplink time period in which the at least one continuous uplink time domain symbol is located, with reference to fig. 7, the first indication information may include that the number of the at least one continuous uplink time domain symbol included in the uplink time period corresponding to the downlink-to-uplink conversion position is 6, and the terminal device determines the first uplink time domain symbol according to the first indication information and the predetermined position of the start time domain symbol in the at least one continuous uplink time domain symbol, or determines the first uplink time domain symbol according to the first indication information and the predetermined position of the last time domain symbol in the at least one continuous uplink time domain symbol Or determining the first uplink time domain symbol according to the first indication information and the position of the starting time domain symbol and the position of the last time domain symbol in at least one predetermined continuous uplink time domain symbol.

As a fifth optional implementation manner of the first indication information, the first indication information may include a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to one downlink-to-uplink conversion position in the uplink and downlink configuration period, where the one downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period. In this case, in the uplink time domain symbols included in the first uplink time domain symbol, the position of the last time domain symbol of at least one consecutive uplink time domain symbol in the uplink time period corresponding to each downlink-to-uplink conversion position in the uplink configuration period is the same, and if the uplink time domain symbol included in the first uplink time domain symbol is located in multiple uplink configuration periods, the position of the last time domain symbol of at least one consecutive uplink time domain symbol in the uplink time period corresponding to each downlink-to-uplink conversion position in each uplink configuration period is the same. Since the first indication information only indicates the position of the last time domain symbol, it is further required to determine the number of at least one consecutive uplink time domain symbol, or determine the position of the starting time domain symbol in the at least one consecutive uplink time domain symbol. The number of the at least one continuous uplink time domain symbol or the position of the start time domain symbol in the at least one continuous uplink time domain symbol may be specified by a predetermined rule, and in this case, the number of the at least one continuous uplink time domain symbol in the uplink time period corresponding to different uplink and downlink conversion positions may be different or may be the same, or the position of the start time domain symbol in the at least one continuous uplink time domain symbol in the uplink time period corresponding to different uplink and downlink conversion positions may be different or may be the same. For example, the number of the at least one consecutive uplink time domain symbol may be predefined in the protocol. For example, the number of the at least one consecutive uplink time domain symbol specified in the protocol is 6, with reference to fig. 7, the first indication information may include an index of a last uplink time domain symbol in the uplink time period corresponding to the downlink-to-uplink transition position. For another example, if the index of the start time domain symbol of the at least one continuous uplink time domain symbol specified in the protocol is the first uplink time domain symbol after the downlink-to-uplink conversion position corresponding to the uplink time period in which the at least one continuous uplink time domain symbol is located, or in other words, the first uplink time domain symbol in the uplink time period in which the at least one continuous uplink time domain symbol is located, with reference to fig. 7, the first indication information may include the index of the last uplink time domain symbol in the uplink time period corresponding to the downlink-to-uplink conversion position. And the terminal equipment determines a first uplink time domain symbol according to the first indication information and the position of the starting time domain symbol in at least one predetermined continuous uplink time domain symbol, or determines the first uplink time domain symbol according to the first indication information and the number of at least one predetermined continuous uplink time domain symbol.

In the above five implementation manners of the first indication information, the number of at least one continuous uplink time domain symbol in the uplink time period corresponding to each downlink-to-uplink conversion position included in the uplink and downlink configuration period is the same, or the position of the last time domain symbol of at least one continuous uplink time domain symbol in the uplink time period corresponding to each downlink-to-uplink conversion position in the uplink configuration period is the same, that is, the first indication information only needs to include information of at least one continuous uplink time domain symbol in the uplink time period corresponding to one downlink-to-uplink conversion position. In addition, there is also a case that the number of at least one continuous uplink time domain symbol in the uplink time period corresponding to different downlink-to-uplink transition positions in the uplink and downlink configuration period is different, or the position of the last time domain symbol of at least one continuous uplink time domain symbol in the uplink time period corresponding to different downlink-to-uplink transition positions in the uplink and downlink configuration period is different, so that the first indication information may also respectively indicate the uplink time period corresponding to each downlink-to-uplink transition position in the uplink and downlink configuration period.

As a sixth implementation manner of the first indication information, the first indication information may include the number of at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period.

As a seventh implementation manner of the first indication information, the first indication information may include the number of at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period, and a position of a starting time domain symbol in the at least one continuous uplink time domain symbol in the uplink time period corresponding to each downlink-to-uplink conversion position.

As an eighth implementation manner of the first indication information, the first indication information may include a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period.

As a ninth implementation manner of the first indication information, the first indication information may include a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink configuration cycle, and a number of at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position.

As a tenth implementation manner of the first indication information, the first indication information may include a position of a first time domain symbol and a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period.

In the sixth implementation manner to the tenth implementation manner of the first indication information, the first indication information is only information that indicates at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period, and specific indication manners may refer to the descriptions of the first implementation manner to the fourth implementation manner of the first indication information, respectively. Of course, if the number of the uplink and downlink configuration periods is multiple, the first indication information only needs to indicate one uplink and downlink configuration period if the conditions of different uplink and downlink configuration periods are the same, and the first indication information may respectively indicate different uplink and downlink configuration periods if the conditions of different uplink and downlink configuration periods are different, and the specific indication mode may refer to the first implementation mode to the tenth implementation mode of the first indication information.

The first indication information is implemented as which of the above ten implementations, or may be implemented in other implementations, and may be predefined by a protocol, or may be determined in other ways.

And S62, the network device sends the first indication information, and the terminal device receives the first indication information from the network device.

Specifically, the network device may carry the first indication information in a cell-common message, such as a broadcast message or a system message, and send the first indication information, or the network device may also carry the first indication information in a terminal device-dedicated message, such as Radio Resource Control (RRC) signaling and the like. The terminal device may obtain the first indication information included in the cell common message or the terminal device dedicated message after receiving the cell common message or the terminal device dedicated message.

As the first uplink time domain symbol subjected to the long-distance interference by the network device is the same for all terminal devices in the cell covered by the network device, and the terminal devices may need to take corresponding measures to reduce the influence caused by the interference, as a selection mode, the first indication information may be selected to be carried in a message common to the cell, so that more terminal devices may be notified at one time. For example, the network device may carry, in the system message, indication information indicating configuration of an uplink and downlink frame structure common to the cells, where the indication information indicates the following information:

1) a downlink-to-uplink conversion period, that is, an uplink and downlink configuration period, typically takes a value of, for example, 0.5ms, 0.625ms, 1ms, or 1.25 ms;

2) the number of downlink time slots: the method comprises the steps of indicating the number of downlink time slots in an uplink and downlink configuration period;

3) number of downlink time domain symbols: the number of the downlink time domain symbols included in the special time slot is indicated;

4) number of uplink timeslots: the method comprises the steps of indicating the number of uplink time slots included in one uplink and downlink configuration period;

5) number of uplink time domain symbols: for indicating the number of uplink time domain symbols included in the special time slot.

The first indication information provided by the embodiment of the present application may be carried in the above-mentioned indication information for indicating the configuration of the common uplink and downlink frame structure of the cell. Further, for the frame structure having only one downlink-to-uplink transition position in the uplink/downlink transition period as shown in fig. 1D, the indication information of the uplink/downlink frame structure configuration sent by the network device usually only carries a set of information from 1) to 5), so that the first indication information is carried in the indication information of the uplink/downlink frame structure configuration. For the frame structure with two transition positions from downlink to uplink in the uplink and downlink configuration period as shown in fig. 1A, fig. 1B, or fig. 1C, the indication information of the uplink and downlink frame structure configuration sent by the network device will usually carry two sets of information 1) to 5), where the first set of information indicates the frame structure configuration of the first half period in the uplink and downlink configuration period, and the second set of information indicates the frame structure configuration of the last half period in the uplink and downlink configuration period. In this case, the first indication information also includes two parts of information, the first part of information is used to indicate a part belonging to the first time period in the uplink time period corresponding to the first downlink-to-uplink switching position in the uplink and downlink configuration period, and the second part of information is used to indicate a part belonging to the first time period in the uplink time period corresponding to the second downlink-to-uplink switching position in the uplink and downlink configuration period. Therefore, a first part of the first indication information can be carried in a first group of information in the indication information of the uplink and downlink frame structure configuration transmitted on the network, and a second part of the first indication information can be carried in a second group of information in the indication information of the uplink and downlink frame structure configuration transmitted on the network.

Of course, the first indication information is carried in the indication information for indicating the configuration of the uplink and downlink frame structure common to the cells, which is only an example, and the embodiment of the present application does not limit how the network device sends the first indication information.

And S63, the terminal equipment determines the first uplink time domain symbol according to the first indication information.

It can be considered that the network device may transmit the first indication information to a plurality of terminal devices at S62, and S63 is described in terms of standing at one terminal device, and the operations of the plurality of terminal devices are similar.

How the terminal device determines the first uplink time domain symbol according to the first indication information has been described in the introduction of S61, and is not described in detail herein.

After the terminal device determines the first uplink time domain symbol, the terminal device may take corresponding measures to reduce the influence caused by the interference in the first uplink time domain symbol. For example, the terminal device may transmit the uplink signal with higher uplink transmission power in the first uplink time domain symbol than in the other uplink time domain symbols, so as to reduce the influence of the long-distance interference on the uplink communication performance of the terminal device. For example, the terminal device may use the maximum power supported by the terminal device as the uplink transmission power in the first uplink time domain symbol, or the power corresponding to the first uplink time domain symbol is predefined in the protocol, and then the terminal device may use the power predefined in the protocol as the uplink transmission power in the first uplink time domain symbol, or the terminal device may use the power configured by the network device as the uplink transmission power in the first uplink time domain symbol. As to how the terminal device determines the uplink transmission power in the first uplink time domain symbol, this embodiment of the application is not limited, and one principle is that, in order to reduce the influence of the long-distance interference on the uplink communication performance of the terminal device, the uplink transmission power adopted by the terminal device on the first uplink time domain symbol may be different from the uplink transmission power adopted on the second uplink time domain symbol. Or, the uplink transmission power adopted by the terminal device on the first uplink time domain symbol and the uplink transmission power adopted on the second uplink time domain symbol are determined separately or independently. For example, the terminal device determines the uplink transmission power used on the first uplink time domain symbol by using the first parameter, and determines the uplink transmission power used on the second uplink time domain symbol by using the second parameter, and then the first parameter and the second parameter may be different. Here, the first parameter may include at least one parameter, and similarly, the second parameter may include at least one parameter, and the first parameter is different from the second parameter, may indicate that kinds of parameters included in the first parameter and the second parameter are different, or may indicate that values of the same kind of parameters included in the first parameter and the second parameter are different. For example, the uplink transmission power used on the first uplink time domain symbol may be greater than the uplink transmission power used on the second uplink time domain symbol, and the second uplink time domain symbol includes other uplink time domain symbols in the uplink and downlink configuration period except the first uplink time domain symbol.

For example, the following describes how, if the terminal device uses the configured power of the network device as the uplink transmission power in the first uplink time domain symbol, the terminal device obtains the configured power of the network device.

The network device may send second indication information to the terminal device, which may include the first parameter. After receiving the second indication information, the terminal device may determine the uplink transmission power that should be used in the first uplink time domain symbol according to the first parameter included in the second indication information. It should be noted that, in the prior art, the terminal device determines the uplink transmission power of the uplink signal by using the same set of power parameters on all uplink time domain symbols of any one timeslot, and the second indication information provided in this embodiment indicates the first parameter of the first uplink time domain symbol, so that the terminal device may determine the uplink transmission power by using the first parameter indicated by the second indication information in the first uplink time domain symbol, and continue to determine the uplink transmission power by using the second parameter notified in the prior art in the second uplink time domain symbol. Therefore, the network device may increase the uplink transmission power of the terminal device in the first uplink time domain symbol by adjusting the first parameter indicated by the second indication information, so as to improve the performance of uplink communication.

Or, the second indication information may further include a difference between an uplink transmission power used by the terminal device on the first uplink time domain symbol and an uplink transmission power used on the second uplink time domain symbol, so that the terminal device may determine the uplink transmission power of the second uplink time domain symbol according to the prior art, and then determine the uplink transmission power of the first uplink time domain symbol according to the difference and the uplink transmission power of the second uplink time domain symbol. Of course, if the second indication information includes a difference between the uplink transmission power used by the terminal device in the first uplink time domain symbol and the uplink transmission power used by the terminal device in the second uplink time domain symbol, for the network device, the uplink transmission power used by the terminal device in the first uplink time domain symbol is also determined first, and the difference is determined according to the uplink transmission power used by the terminal device in the first uplink time domain symbol and the uplink transmission power used by the terminal device in the second uplink time domain symbol, or the difference may be preconfigured by the network device, and the network device may directly indicate the difference to the terminal device.

The content specifically included in the second indication information may be predefined by a protocol or determined by a network device, which is not limited in the embodiment of the present application.

The network device may carry the second indication information in a message common to the cells to be sent, or the network device may also carry the second indication information in a message dedicated to the terminal device, for example, RRC signaling dedicated to the terminal device. The embodiment of the present application does not limit the transmission manner of the second indication information. After the terminal device receives the cell common message or the terminal device dedicated message, the second indication information included in the cell common message or the terminal device dedicated message can be obtained. Moreover, the network device sends the first indication information and the second indication information together through a message, for example, the network device sends the first indication information and the second indication information both carried in the indication information for indicating the configuration of the uplink and downlink frame structure common to the cells, or the network device may send the first indication information and the second indication information through different messages respectively. When the first indication information and the second indication information are transmitted, the first indication information and the second indication information may be transmitted through the same type of message, for example, through a broadcast message or a terminal device dedicated message, or may be transmitted through different types of messages, for example, the first indication information is transmitted through a cell common message, the second indication information is transmitted through a terminal device dedicated message, for example, the first indication information is transmitted through a broadcast message, the second indication information is transmitted through a system message, and so on.

If the terminal device uses the power configured by the network device as the uplink transmission power in the first uplink time domain symbol, the network device may use the interference condition of the first uplink time domain symbol as a configured factor when configuring the uplink transmission power adopted by the terminal device in the first uplink time domain symbol, for example, the stronger the interference on the first uplink time domain symbol, the larger the uplink transmission power on the first uplink time domain symbol of the terminal device configured by the network device is. Of course, when the network device configures the uplink transmit power used by the terminal device in the first uplink time domain symbol, it also needs to consider factors such as the actual capability of the terminal device, and make the configured uplink transmit power less than or equal to the actual maximum transmit power of the terminal device as much as possible. Specifically, how the network device configures the uplink transmission power used by the terminal device in the first uplink time domain symbol is not limited in the embodiment of the present application.

In this embodiment, the terminal device may determine, according to the first indication information received from the network device, the first uplink time domain symbol subjected to long-distance interference, so that the uplink signal is sent at the first uplink time domain symbol with higher uplink transmission power than that at the second uplink time domain symbol, so as to reduce the performance impact of the long-distance interference on uplink communication.

The embodiment shown in fig. 6 describes a scheme of how the network device and the terminal device that are affected by interference reduce the influence of interference, and another embodiment is described below to describe how a network device that interferes with other network devices reduces interference to other network devices.

The embodiment of the present application provides another information sending and receiving method, please refer to fig. 8, which is a flowchart of the method. In the following description, the method is applied to the network architecture shown in fig. 5 as an example. In addition, the method may be performed by two communication devices, for example, a third communication device and a fourth communication device, where the third communication device may be a network device or a communication device capable of supporting the network device to implement the functions required by the method, and may also be other communication devices, such as a system on chip. The same applies to the fourth communication apparatus, which may be a terminal device or a communication apparatus capable of supporting the terminal device to implement the functions required by the method, but may also be other communication apparatuses, such as a system on a chip. And the implementation manners of the third communication device and the fourth communication device are not limited, for example, the third communication device is a network device, the fourth communication device is a terminal device, or the third communication device is a network device, the fourth communication device is a communication device capable of supporting the terminal device to implement the functions required by the method, and so on. The network device is, for example, a base station.

For convenience of introduction, in the following, the method is performed by the network device and the terminal device as an example, that is, the third communication device is the network device, and the fourth communication device is the terminal device as an example. For example, the network device is a network device in the network architecture shown in fig. 5, and the terminal device is a terminal device in the network architecture shown in fig. 5.

S81, the network device determines first indication information, where the first indication information is used to indicate a first downlink time domain symbol, and the first downlink time domain symbol is at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration period.

First, the network device may determine a first downlink time domain symbol, where the first downlink time domain symbol is at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration period. The number of the uplink and downlink configuration periods may be at least one, and the positions of the downlink time domain symbols belonging to the first downlink time domain symbol included in each uplink and downlink configuration period may be the same, so that the network device may determine at least one continuous downlink time domain symbol in the downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in any one uplink and downlink configuration period, or, the positions of the downlink time domain symbols belonging to the first downlink time domain symbol included in the different uplink and downlink configuration periods may also be different, the network device may determine at least one continuous downlink time domain symbol in the downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in each uplink and downlink configuration period, respectively, to determine the first downlink time domain symbol.

As used herein, the downlink time period corresponding to the downlink-to-uplink switching position may be understood as the first downlink time period before the downlink-to-uplink switching position. In one uplink and downlink configuration cycle, one downlink-to-uplink conversion position may be included, or two or more downlink-to-uplink conversion positions may be included, where each downlink-to-uplink conversion position is preceded by a downlink time domain symbol, and each downlink-to-uplink conversion position is followed by an uplink time domain symbol, and if one uplink and downlink configuration cycle only includes one downlink-to-uplink conversion position, then a downlink time period corresponding to the downlink-to-uplink conversion position is a downlink time period located before the downlink-to-uplink conversion position in the uplink and downlink configuration cycle. Referring to fig. 1D, in the uplink and downlink configuration cycle, only one downlink-to-uplink conversion position is included, and the downlink time period corresponding to the downlink-to-uplink conversion position includes a downlink symbol in the time slot 7, and the downlink time slots 0 to 8. If a downlink configuration period includes a plurality of downlink-to-uplink switching positions, for a first downlink-to-uplink switching position, a downlink time period corresponding to the first downlink-to-uplink switching position is a downlink time period from a first downlink time domain symbol in the uplink configuration period to a last downlink time domain symbol before the first downlink-to-uplink switching position, for a middle downlink-to-uplink switching position, a corresponding downlink time period is a downlink time period from a first downlink time domain symbol after a last uplink time domain symbol corresponding to a last downlink-to-uplink switching position in the uplink configuration period to a last downlink time domain symbol before the middle downlink-to-uplink switching position, and for a last downlink-to-uplink switching position in the uplink configuration period, the definition of the corresponding downlink time period is the same as the definition of the downlink time period corresponding to the downlink-to-uplink transition position located in the middle. Referring to fig. 1C, the uplink and downlink configuration period includes two downlink-to-uplink transition positions, which are respectively located in the time slot 3 and the time slot 7, so that the downlink time period corresponding to the downlink-to-uplink transition position in the time slot 3 includes the downlink symbol and the downlink time slot 0-2 in the time slot 3, and the downlink time period corresponding to the downlink-to-uplink transition position in the time slot 7 includes the downlink symbol, the downlink time slot 5, and the downlink time slot 6 in the time slot 7.

The first downlink time domain symbol may be understood as a downlink time domain symbol that the network device may cause long-distance interference to other network devices, that is, a downlink signal sent by the network device on the first downlink time domain symbol may interfere with reception of uplink signals of other network devices. For example, network devices in the system may perform measurements by sending reference signals, which may be periodic measurements, to identify whether interference from other network devices is present. For example, if the network device a determines that the network device a is interfered by a plurality of downlink time domain symbols of the network device B, the network device a may notify the network device B of the information, and of course, if the distance between the network device a and the network device B is long and the network device a may not directly notify the network device B, the network device a may use other devices in the network as a relay, for example, the network device a reports the interfered information to a central controller in the network, and the central controller may notify the network device B of the information, so that the network device B may determine downlink time domain symbols in which the network device B interferes with other network devices, that is, determine the first downlink time domain symbol, and the network device B may be equivalent to the network device in S81. Or, the network device may also determine the first downlink time domain symbol in a self-measurement manner, and the method for determining the first downlink time domain symbol by the network device is not limited in this embodiment of the application.

After the network device determines the first downlink time domain symbol, in order to notify the terminal device of the first downlink time domain symbol, the network device may determine indication information, for example, referred to as first indication information, for indicating the first downlink time domain symbol.

The first indication information in the embodiment shown in fig. 8 is obviously different from the first indication information in the embodiment shown in fig. 6 in concept, including different content.

As a first optional implementation manner of the first indication information, the first indication information may include the number of at least one continuous downlink time domain symbol in a downlink time period corresponding to one downlink-to-uplink conversion position in the uplink and downlink configuration period, and a position of a starting time domain symbol in the at least one continuous downlink time domain symbol, where the one downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period. In this case, the number of at least one continuous downlink time domain symbol in each downlink time period in the uplink and downlink configuration period is the same in the downlink time domain symbols included in the first downlink time domain symbol, and if the downlink time domain symbols included in the first uplink and downlink time domain symbols are located in multiple uplink and downlink configuration periods, the number of at least one continuous downlink time domain symbol in each downlink time period in each uplink and downlink configuration period is the same. That is to say, in the uplink and downlink configuration cycle, the number and the position of at least one continuous downlink symbol included in the downlink time period corresponding to each downlink-to-uplink conversion position are the same, so that the terminal device can determine the first downlink time domain symbol only by indicating the number of at least one continuous downlink time domain symbol in the downlink time period corresponding to one of the downlink-to-uplink conversion positions and the position of the starting time domain symbol in the at least one continuous downlink time domain symbol by the first indication information. In this context, the position of a time domain symbol may be understood (or replaced) by, for example, an index of the time domain symbol, or there may be other meanings, in any case, for uniquely determining a time domain symbol. The first indication information includes a starting time domain symbol in the at least one consecutive downlink time domain symbol, and specifically, may be a position including the starting time domain symbol in the at least one consecutive uplink time domain symbol, and include the position of the time domain symbol, for example, an index including the time domain symbol. In order to determine the index of the starting time domain symbol in the at least one continuous downlink time domain symbol, a reference time domain symbol is first determined, the index of the reference time domain symbol is used as a reference index, and the index of the starting time domain symbol in the at least one continuous downlink time domain symbol can be determined according to the reference index. Or, a reference position is first determined, which is the position of the reference time domain symbol, so as to determine the position of the starting time domain symbol in at least one consecutive downlink time domain symbol according to the reference position. In the following, an example of the selection of the reference time domain symbol is described.

For example, the reference time domain symbol may be any time domain symbol in one uplink and downlink configuration period, that is, the reference position may be a position of any time domain symbol in one uplink and downlink configuration period, and then, a position of a starting time domain symbol in the at least one continuous downlink time domain symbol may be determined by using a position of any time domain symbol in the uplink and downlink configuration period where the at least one continuous downlink time domain symbol is located as the reference position.

For example, the position of the starting time domain symbol in at least one continuous downlink time domain symbol in the downlink time period corresponding to one downlink-to-uplink conversion position in one uplink and downlink configuration period may be determined by using the position of the first downlink time domain symbol before the one downlink-to-uplink conversion position as a reference position. That is, the reference time domain symbol is a first downlink time domain symbol before the one downlink-to-uplink switching position, and the reference index is an index of the first downlink time domain symbol before the one downlink-to-uplink switching position. In an uplink and downlink configuration period, generally, a downlink time domain symbol is located in front, and the position of the first downlink time domain symbol before a downlink-to-uplink conversion position is used as a reference position, so that the manner of determining the positions of other time domain symbols is simpler.

Referring to fig. 9, fig. 9 shows an uplink and downlink configuration period, which includes 5 slots (slots) as an example, wherein, the 1 st time slot, the 2 nd time slot and the 3 rd time slot are all downlink time slots, the 4 th time slot is a special time slot, the 5 th time slot is an uplink time slot, each time slot comprises 14 time domain symbols, the index of 14 time domain symbols included in one slot may be from 0 to 13, and the special slot sequentially includes 10 downlink time domain symbols, 2 time domain symbols as a guard interval, and 2 uplink time domain symbols from left to right, that is, the uplink and downlink configuration cycle includes a downlink-to-uplink conversion position, and the uplink time period corresponding to the downlink-to-uplink conversion position includes 2 uplink time domain symbols in the special time slot and all uplink time domain symbols in the 5 th time slot. In fig. 9, rectangular boxes with horizontal lines indicate downlink time domain symbols, and rectangular boxes with diagonal lines indicate uplink time domain symbols. At least one continuous downlink time domain symbol included in the downlink time period corresponding to the downlink-to-uplink switching position starts from, for example, the seventh uplink time domain symbol (time domain symbol with index of 6 in the special time slot) located before the downlink-to-uplink switching position in the special time slot of fig. 9, and ends with the tenth time domain symbol (time domain symbol with index of 9 in the special time slot) located before the downlink-to-uplink switching position in the special time slot. Then, if the reference position is the position of the first downlink time domain symbol before the downlink-to-uplink switching position, the network device may determine that the index of the starting time domain symbol in at least one consecutive downlink time domain symbol in the downlink time period corresponding to the downlink-to-uplink switching position is 48, that is, the index of the starting time domain symbol in at least one consecutive downlink time domain symbol in the downlink time period corresponding to one downlink-to-uplink switching position in the uplink configuration period included in the first indication information is 48, and the number of at least one consecutive downlink time domain symbol in the downlink time period corresponding to one downlink-to-uplink switching position in the uplink configuration period is 4.

As a second optional implementation manner of the first indication information, the first indication information may include a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to one downlink-to-uplink conversion position in the uplink and downlink configuration cycle, and a number of at least one continuous downlink time domain symbol in a downlink time period corresponding to the one downlink-to-uplink conversion position. In this case, the number of at least one continuous downlink time domain symbol in each downlink time period in the uplink and downlink configuration period is the same in the downlink time domain symbols included in the first downlink time domain symbol, and if the downlink time domain symbols included in the first downlink time domain symbol are located in multiple uplink and downlink configuration periods, the number of at least one continuous downlink time domain symbol in each downlink time period in each uplink and downlink configuration period is the same. Therefore, the terminal device can determine the first downlink time domain symbol only by indicating the number of at least one continuous downlink time domain symbol in the downlink time period corresponding to one downlink-to-uplink conversion position and the position of the last downlink time domain symbol in the at least one continuous downlink time domain symbol by the first indication information. The first indication information indicates a last time domain symbol in the at least one consecutive downlink time domain symbol, and specifically, may indicate a position of the last time domain symbol in the at least one consecutive downlink time domain symbol, and indicate a position of the time domain symbol, for example, an index indicating the time domain symbol. Wherein, to determine the index of the last time domain symbol in the at least one consecutive downlink time domain symbol, a reference time domain symbol is first determined, the index of the reference time domain symbol is used as a reference index, and the index of the last time domain symbol in the at least one consecutive downlink time domain symbol can be determined according to the reference index. Or, a reference position is first determined, which is the position of the reference time domain symbol, so as to determine the position of the last time domain symbol in at least one consecutive downlink time domain symbol according to the reference position. In the following, an example of the selection of the reference time domain symbol is described.

For example, the reference position may be a position of any time domain symbol in one uplink and downlink configuration period, that is, the reference position may be a position of any time domain symbol in one uplink and downlink configuration period, and then, a last time domain symbol in the at least one continuous downlink time domain symbol may be determined by using the position of any time domain symbol in the uplink and downlink configuration period where the at least one continuous downlink time domain symbol is located as the reference position.

Or, the position of the last time domain symbol in at least one continuous downlink time domain symbol in the downlink time period corresponding to one downlink-to-uplink switching position in one uplink and downlink configuration cycle is determined by using the position of the first downlink time domain symbol in the downlink time period corresponding to the one downlink-to-uplink switching position as a reference position, that is, the reference time domain symbol is the first downlink time domain symbol in the downlink time period corresponding to the one downlink-to-uplink switching position, and the reference index is the index of the first downlink time domain symbol in the downlink time period corresponding to the one downlink-to-uplink switching position.

Continuing with fig. 9 as an example, if the reference position is the position of the first downlink time domain symbol in the downlink time period corresponding to the downlink-to-uplink conversion position, the network device may determine that the index of the last time domain symbol in the downlink time period corresponding to the downlink-to-uplink conversion position is 0, that is, the index of the last time domain symbol in at least one consecutive downlink time domain symbol in the downlink time period corresponding to the downlink-to-uplink conversion position, which is included in the first indication information, is 0, and the number of at least one consecutive downlink time domain symbol in the downlink time period corresponding to the downlink-to-uplink conversion position is 4.

As a third optional implementation manner of the first indication information, the first indication information may include a position of a first time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, and a position of a last time domain symbol. In this case, the number of at least one continuous downlink time domain symbol in each uplink time segment in the uplink and downlink configuration period is the same in the downlink time domain symbols included in the first downlink time domain symbol, and if the downlink time domain symbols included in the first downlink time domain symbol are located in multiple uplink and downlink configuration periods, the number of at least one continuous downlink time domain symbol in each downlink time segment in each uplink and downlink configuration period is the same. Therefore, the first indication information only needs to indicate a first downlink time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to one downlink-to-uplink conversion position and a last downlink time domain symbol in the at least one continuous downlink time domain symbol, and the terminal device can determine the first downlink time domain symbol. The first indication information indicates a first downlink time domain symbol and a last downlink time domain symbol in the at least one consecutive downlink time domain symbol, and specifically, may indicate a position of the first downlink time domain symbol and a position of the last time domain symbol in the at least one consecutive downlink time domain symbol, and indicate a position of the time domain symbol, for example, an index indicating the time domain symbol. The first downlink time domain symbol index and the last downlink time domain symbol index in the at least one continuous downlink time domain symbol are determined, a reference time domain symbol is determined first, the reference time domain symbol index is used as a reference index, and the first downlink time domain symbol index and the last downlink time domain symbol index in the at least one continuous downlink time domain symbol can be determined according to the reference index. Or, a reference position is first determined, where the reference position is a position of a reference time domain symbol, so as to determine a position of a first downlink time domain symbol and a position of a last downlink time domain symbol in at least one consecutive downlink time domain symbol according to the reference position. Regarding the selection manner of the reference time domain symbol, reference may be made to the description of the first optional implementation manner or the second optional implementation manner of the first indication information in the foregoing, which is not repeated herein.

As a fourth optional implementation manner of the first indication information, the first indication information may include the number of at least one continuous downlink time domain symbol in a downlink time period corresponding to one downlink-to-uplink transition position in the uplink and downlink configuration period, where the one downlink-to-uplink transition position is any one downlink-to-uplink transition position in the uplink and downlink configuration period. In this case, the number of at least one continuous downlink time domain symbol in each downlink time period in the uplink and downlink configuration period is the same in the downlink time domain symbols included in the first downlink time domain symbol, and if the downlink time domain symbols included in the first downlink time domain symbol are located in multiple uplink and downlink configuration periods, the number of at least one continuous downlink time domain symbol in each downlink time period in each uplink and downlink configuration period is the same. Since the first indication information only indicates the length, it is further required to determine the position of the starting time domain symbol and/or the position of the last time domain symbol of the at least one consecutive downlink time domain symbol, that is, to determine the position of the starting time domain symbol of the at least one consecutive downlink time domain symbol, or to determine the position of the last time domain symbol of the at least one consecutive downlink time domain symbol, or to determine the position of the starting time domain symbol of the at least one consecutive downlink time domain symbol, and the position of the last time domain symbol of the at least one consecutive downlink time domain symbol. The position of the starting time domain symbol and/or the position of the last time domain symbol of the at least one consecutive downlink time domain symbol may be specified by a predetermined rule, and in this case, the positions of the starting time domain symbol of the at least one consecutive downlink time domain symbol in the downlink time period corresponding to different uplink and downlink switching positions may be different or may be the same, or the positions of the last time domain symbol of the at least one consecutive downlink time domain symbol in the downlink time period corresponding to different uplink and downlink switching positions may be different or may be the same.

For example, the protocol may specify a position of a starting time domain symbol and/or a position of a last time domain symbol of the at least one consecutive downlink time domain symbol in advance. For example, the index of the last time domain symbol in at least one consecutive downlink time domain symbol in the downlink time period corresponding to the downlink-to-uplink switching position specified in the protocol is the index of the last downlink time domain symbol in the downlink time period before the downlink-to-uplink switching position, or in other words, the index of the last time domain symbol before the downlink-to-uplink switching position, then referring to fig. 7 again, the first indication information may include that the number of the at least one consecutive downlink time domain symbol included in the downlink time period corresponding to the downlink-to-uplink switching position is 4, the terminal device determines the first downlink time domain symbol according to the first indication information and the predetermined position of the starting time domain symbol in the at least one consecutive downlink time domain symbol, or determines the first downlink time domain symbol according to the first indication information and the predetermined position of the last time domain symbol in the at least one consecutive downlink time domain symbol, or determining the first downlink time domain symbol according to the first indication information and the predetermined position of the starting time domain symbol and the predetermined position of the last time domain symbol in at least one continuous downlink time domain symbol.

As a fifth optional implementation manner of the first indication information, the first indication information may include a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to one downlink-to-uplink conversion position in the uplink and downlink configuration period, where the one downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period. In this case, in the downlink time domain symbols included in the first downlink time domain symbol, the position of the last time domain symbol of at least one consecutive downlink time domain symbol in the downlink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period is the same, and if the downlink time domain symbol included in the first downlink time domain symbol is located in multiple uplink and downlink configuration periods, the position of the last time domain symbol of at least one consecutive downlink time domain symbol in the downlink time period corresponding to each downlink-to-uplink conversion position in each uplink and downlink configuration period is the same. Since the first indication information only indicates the position of the last time domain symbol, it is further required to determine the number of at least one consecutive downlink time domain symbol, or determine the position of the starting time domain symbol in the at least one consecutive downlink time domain symbol. The number of the at least one continuous downlink time domain symbol or the position of the starting time domain symbol in the at least one continuous downlink time domain symbol may be specified by a predetermined rule, and in this case, the number of the at least one continuous downlink time domain symbol in the downlink time period corresponding to different uplink and downlink switching positions may be different or may be the same, or the position of the starting time domain symbol in the at least one continuous downlink time domain symbol in the downlink time period corresponding to different uplink and downlink switching positions may be different or may be the same. For example, the number of the at least one consecutive downlink time domain symbol may be predefined in the protocol. For example, if the number of the at least one consecutive downlink time domain symbol specified in the protocol is 4, with reference to fig. 9, the first indication information may include an index of the last downlink time domain symbol in the downlink time period corresponding to the downlink-to-uplink switching position. And the terminal equipment determines the first downlink time domain symbol according to the first indication information and the position of the starting time domain symbol in at least one predetermined continuous downlink time domain symbol, or determines the first downlink time domain symbol according to the first indication information and the number of at least one predetermined continuous downlink time domain symbol.

In the above five implementation manners of the first indication information, the number of at least one continuous downlink time domain symbol in the downlink time period corresponding to each downlink-to-uplink conversion position included in the uplink and downlink configuration period is the same, or the position of the last time domain symbol of at least one continuous downlink time domain symbol in the downlink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period is the same, that is, the first indication information only needs to include information of at least one continuous downlink time domain symbol in the uplink time period corresponding to one downlink-to-uplink conversion position. In addition, there is also a case that the number of at least one continuous downlink time domain symbol in the downlink time period corresponding to different downlink-to-uplink transition positions in the uplink and downlink configuration period is different, or the position of the last time domain symbol of at least one continuous downlink time domain symbol in the downlink time period corresponding to different downlink-to-uplink transition positions in the uplink and downlink configuration period is different, so that the first indication information may also respectively indicate the downlink time period corresponding to each downlink-to-uplink transition position in the uplink and downlink configuration period.

As a sixth implementation manner of the first indication information, the first indication information may include the number of at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period.

As a seventh implementation manner of the first indication information, the first indication information may include the number of at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration cycle, and a position of a starting time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position.

As an eighth implementation manner of the first indication information, the first indication information may include a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period, where the one downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period.

As a ninth implementation manner of the first indication information, the first indication information may include a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration cycle, and a number of at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position.

As a tenth implementation manner of the first indication information, the first indication information may include a position of a first time domain symbol and a position of a last time domain symbol in at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period.

In the sixth implementation manner to the tenth implementation manner of the first indication information, the first indication information is only information that indicates at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period, and specific indication manners may refer to the descriptions of the first implementation manner to the fourth implementation manner of the first indication information, respectively. Of course, if the number of the uplink and downlink configuration periods is multiple, the first indication information only needs to indicate one uplink and downlink configuration period if the conditions of different uplink and downlink configuration periods are the same, and the first indication information may respectively indicate different uplink and downlink configuration periods if the conditions of different uplink and downlink configuration periods are different, and the specific indication mode may refer to the first implementation mode to the tenth implementation mode of the first indication information.

Whether the first indication information is implemented as any one of the above ten implementations, or other implementations are also possible, and may be predefined by a protocol, or may be determined by other ways.

And S82, the network device sends the first indication information, and the terminal device receives the first indication information from the network device.

Specifically, the network device may carry the first indication information in a cell-common message, such as a broadcast message or a system message, and send the first indication information, or the network device may also carry the first indication information in a terminal device-dedicated message, such as terminal device-dedicated RRC signaling. The terminal device may obtain the first indication information included in the cell common message or the terminal device dedicated message after receiving the cell common message or the terminal device dedicated message.

As the first downlink time domain symbol of the network device interfering with other network devices is the same for all terminal devices in the cell covered by the network device, and these terminal devices may need to take corresponding measures to reduce the influence of the interference on other network devices, as a selection method, the first indication information may be selected to be carried in a message common to the cell, so that more terminal devices may be notified at one time. For example, the network device may carry, in the system message, indication information indicating the uplink and downlink frame structure configuration common to the cells, where the content indicated by the indication information may refer to the relevant description in S63 in the embodiment shown in fig. 6, and the first indication information provided in this embodiment of the present application may be carried in the above-mentioned indication information for indicating the uplink and downlink frame structure configuration common to the cells.

Further, for a frame structure having only one downlink-to-uplink switching position in the uplink/downlink switching period as shown in fig. 1D, the indication information of the uplink/downlink frame structure configuration sent by the network device generally only carries the information of the group of 1) to 5) described above in S63 in the embodiment shown in fig. 6, so that the first indication information is carried in the indication information of the group of uplink/downlink frame structure configuration. For the frame structure having two transition positions from downlink to uplink in the uplink and downlink configuration period shown in fig. 1A, fig. 1B, or fig. 1C, the indication information of the uplink and downlink frame structure configuration sent by the network device usually carries two sets of information 1) to 5) described in S63 in the embodiment shown in fig. 6, where the first set of information indicates the frame structure configuration in the first half period of the uplink and downlink configuration period, and the second set of information indicates the frame structure configuration in the last half period of the uplink and downlink configuration period. In this case, the first indication information also includes two parts of information, the first part of information is used to indicate a part belonging to the first time period in the downlink time period corresponding to the first downlink-to-uplink switching position in the uplink and downlink configuration period, and the second part of information is used to indicate a part belonging to the first time period in the downlink time period corresponding to the second downlink-to-uplink switching position in the uplink and downlink configuration period. Therefore, a first part of the first indication information can be carried in a first group of information in the indication information of the uplink and downlink frame structure configuration transmitted on the network, and a second part of the first indication information can be carried in a second group of information in the indication information of the uplink and downlink frame structure configuration transmitted on the network.

And S83, the terminal equipment determines the first downlink time domain symbol according to the first indication information.

It can be considered that the network device may transmit the first indication information to a plurality of terminal devices at S82, and S83 is described in terms of standing at one terminal device, and the operations of the plurality of terminal devices are similar.

How the terminal device determines the first downlink time domain symbol according to the first indication information has been described in the introduction of S81, and is not described in detail herein.

After the network device determines the first downlink time domain symbol, the network device may take corresponding measures to reduce interference to other network devices at the first downlink time domain symbol. For example, the network device may transmit the downlink signal at the first downlink time domain symbol with a lower downlink transmit power than at the other time domain symbols to reduce the impact of long-range interference on the uplink communication performance of the other network devices. For the terminal device, after receiving the first indication information, the terminal device may determine that downlink transmission power adopted by the network device in the first downlink time domain symbol is smaller than downlink transmission power adopted by the network device in other downlink time periods. For example, the downlink transmit power employed by the network device on the first downlink time domain symbol may be different from the downlink transmit power employed on the second downlink time domain symbol. Or, the downlink transmit power used by the network device on the first downlink time domain symbol and the downlink transmit power used on the second downlink time domain symbol are determined separately or independently. For example, if the network device determines the downlink transmission power used in the first downlink time domain symbol by using the first parameter, and determines the downlink transmission power used in the second downlink time domain symbol by using the second parameter, the first parameter and the second parameter may be different. Here, the first parameter may include at least one parameter, and similarly, the second parameter may include at least one parameter, and the first parameter is different from the second parameter, may indicate that kinds of parameters included in the first parameter and the second parameter are different, or may indicate that values of the same kind of parameters included in the first parameter and the second parameter are different. For example, the uplink transmission power used for the first downlink time domain symbol may be lower than the downlink transmission power used for the second uplink time domain symbol, where the second uplink time domain symbol includes other downlink time domain symbols in the uplink and downlink configuration period except for the first downlink time domain symbol.

In order to enable the terminal device to more clearly determine the downlink transmission power used by the network device in the first downlink time domain symbol, the network device may send second indication information to the terminal device, where the second indication information in the embodiment shown in fig. 8 indicates different content and different indication information from the second indication information in the embodiment shown in fig. 6. Optionally, the second indication information may include a first parameter adopted by the network device on the first downlink time domain symbol indicated by the first indication information. After the terminal device receives the second indication information, the downlink transmission power adopted by the network device in the first downlink time domain symbol can be determined according to the first parameter included in the second indication information. It should be noted that, in the prior art, the network device determines the downlink transmission power of the downlink signal by using the same set of power parameters on all time domain symbols of any one time slot, but in this embodiment, the network device may change the downlink transmission power in the first downlink time domain symbol, so that the network device may determine the downlink transmission power in the first downlink time domain symbol by using the first parameter indicated by the second indication information, and continue to use the downlink transmission power in the prior art in the second downlink time domain symbol. Therefore, the network device may reduce the downlink transmit power of the first downlink time domain symbol by adjusting the first parameter, so as to improve the performance of uplink communication of other network devices.

Alternatively, the second indication information may also include a difference between the downlink transmission power adopted by the network device in the first downlink time domain symbol and the downlink transmission power adopted in the second downlink time domain symbol, so that the terminal device may determine the difference. This is based on a situation, generally speaking, the terminal device may not know the specific downlink transmission power of the network device, and may directly receive the downlink signal, and therefore, the terminal device may only know the difference between the downlink transmission power used by the network device in the first downlink time domain symbol and the downlink transmission power used in the second downlink time domain symbol, and may correctly receive the downlink signal of the first downlink time domain symbol.

Of course, if the second indication information includes a difference between the downlink transmission power used by the network device in the first downlink time domain symbol and the downlink transmission power used by the network device in the second downlink time domain symbol, for the network device, the downlink transmission power used in the first downlink time domain symbol is determined first, and the difference is determined according to the downlink transmission power used in the first downlink time domain symbol and the downlink transmission power used in the second downlink time domain symbol, or the difference may be preconfigured by the network device, and the network device may directly indicate the difference to the terminal device.

How the second indication information specifically indicates may be predefined by a protocol or determined by a network device, which is not limited in the embodiments of the present application.

When the network device configures the downlink transmit power of the first downlink time domain symbol, the interference condition on the first downlink time domain symbol to other network devices may be used as a factor of the configuration, for example, the stronger the interference on the first downlink time domain symbol to other network devices, the smaller the downlink transmit power configured by the network device on the first downlink time domain symbol is, so as to reduce the interference. Of course, when the network device configures the downlink transmission power on the first downlink time domain symbol, it is assumed that the network device can normally transmit the downlink signal. Specifically, how the network device configures the downlink transmit power on the first downlink time domain symbol is not limited in this embodiment of the application.

In this embodiment, the network device may employ lower downlink transmit power on the first downlink time domain symbol than on other time domain symbols to reduce interference to other network devices. The terminal device may determine, according to the first indication information received from the network device, the first downlink time domain symbol causing long-distance interference, so as to determine that downlink transmission power of the network device in the first downlink time domain symbol is lower than downlink transmission power of the first downlink time domain symbol, so as to correctly receive the downlink signal in the downlink time period.

In consideration of reciprocity of long-distance interference, the network device subjected to interference often causes interference to other network devices, and therefore, the embodiment of the application further provides an information sending and receiving method.

Please refer to fig. 10, which is a flowchart of the method. In the following description, the method is applied to the network architecture shown in fig. 5 as an example. In addition, the method may be performed by two communication apparatuses, for example, a fifth communication apparatus and a sixth communication apparatus, where the fifth communication apparatus may be a network device or a communication apparatus capable of supporting the network device to implement the functions required by the method, and may also be other communication apparatuses, such as a system on chip. The same is true for the sixth communication apparatus, which may be a terminal device or a communication apparatus capable of supporting the terminal device to implement the functions required by the method, but may also be other communication apparatuses, such as a system on a chip. And the implementation manners of the fifth communication device and the sixth communication device are not limited, for example, the fifth communication device is a network device, the sixth communication device is a terminal device, or the fifth communication device is a network device, the sixth communication device is a communication device capable of supporting the terminal device to implement the functions required by the method, and so on. The network device is, for example, a base station.

For convenience of introduction, in the following, the method is performed by the network device and the terminal device as an example, that is, the fifth communication device is the network device, and the sixth communication device is the terminal device as an example. For example, the network device is a network device in the network architecture shown in fig. 5, and the terminal device is a terminal device in the network architecture shown in fig. 5.

S101, a network device determines third indication information and fourth indication information, wherein the third indication information is used for indicating a first uplink time domain symbol, the first uplink time domain symbol is at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration period, the fourth indication information is used for indicating a first downlink time domain symbol, and the first downlink time domain symbol is at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in the uplink configuration period.

S102, the network equipment sends the third indication information and the fourth indication information, and the terminal equipment receives the third indication information and the fourth indication information from the network equipment.

S103, the terminal device determines the first uplink time domain symbol according to the third indication information, and determines the first downlink time domain symbol according to the fourth indication information.

The implementation manner of the third indication information is the same as the implementation manner of the first indication information in the embodiment shown in fig. 6, reference may be made to the description of the first indication information in the embodiment shown in fig. 6, the implementation manner of the first uplink time domain symbol is the same as the implementation manner of the first uplink time domain symbol in the embodiment shown in fig. 6, reference may be made to the description of the first uplink time domain symbol in the embodiment shown in fig. 6, the implementation manner of the fourth indication information is the same as the implementation manner of the first indication information in the embodiment shown in fig. 8, reference may be made to the description of the first indication information in the embodiment shown in fig. 8, the implementation manner of the first downlink time domain symbol is the same as the implementation manner of the first downlink time domain symbol in the embodiment shown in fig. 8, and reference may be made to the description of the first downlink. That is, the corresponding contents in this embodiment can refer to the description in the embodiment shown in fig. 6 or the embodiment shown in fig. 8, and are not described herein again.

It should be noted that the third indication information and the fourth indication information may be carried in a single message and sent to the terminal device, for example, the third indication information and the fourth indication information are simultaneously carried in a signaling used by the network device to indicate the configuration of the uplink and downlink frame structure, where the signaling may be a signaling indicating the configuration of the uplink and downlink frame structure common to the cells in the system message, or may be a signaling indicating the configuration of the uplink and downlink frame structure dedicated to the terminal in the RRC message dedicated to the terminal. The third indication information and the fourth indication information are carried in one message, which is beneficial to saving transmission resources. Alternatively, the third indication information and the fourth indication information may also be carried in different messages and respectively sent to the terminal device, for example, the third indication information is carried in a system message, and the fourth indication information is carried in a message dedicated to the terminal device. If the third indication information and the fourth indication information are carried in different messages and sent, the sending order of the two messages is not limited in the embodiments of the present application, for example, the message carrying the third indication information may be sent first, and the message carrying the fourth indication information may be sent later, or the message carrying the fourth indication information may be sent first, and the message carrying the third indication information may be sent later, or the message carrying the third indication information and the message carrying the fourth indication information may also be sent simultaneously.

According to the technical scheme provided by the embodiment of the application, the interference of other network equipment to the network equipment can be reduced, and the interference of the network equipment to other network equipment can be reduced.

The following describes an apparatus for implementing the above method in the embodiment of the present application with reference to the drawings. Therefore, the above contents can be used in the subsequent embodiments, and the repeated contents are not repeated.

Fig. 11 shows a schematic structural diagram of a communication apparatus 1100. The communications apparatus 1100 can implement the functionality of the network devices referred to above. The communication apparatus 1100 may be the network device described above, or may be a chip provided in the network device described above. The communication device 1100 may include a processor 1101 and a transceiver 1102. Processor 1101 may be used, among other things, to perform S61 in the embodiment shown in fig. 6, and/or other processes for supporting the techniques described herein. The transceiver 1102 may be configured to perform S62 in the embodiment illustrated in fig. 6, and/or other processes for supporting the techniques described herein.

For example, the processor 1101 is configured to determine first indication information, where the first indication information is used to indicate a first uplink time domain symbol, and the first uplink time domain symbol is at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration period;

a transceiver 1102 configured to transmit the first indication information.

All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

Fig. 12 shows a schematic structural diagram of a communication apparatus 1200. The communication apparatus 1200 may implement the functions of the terminal device referred to above. The communication apparatus 1200 may be the terminal device described above, or may be a chip provided in the terminal device described above. The communication device 1200 may include a processor 1201 and a transceiver 1202. Processor 1201 may be used, among other things, to perform S63 in the embodiment shown in fig. 6, and/or other processes for supporting the techniques described herein. The transceiver 1202 may be configured to perform S62 in the embodiment illustrated in fig. 6, and/or other processes for supporting the techniques described herein.

For example, the transceiver 1202 is configured to receive first indication information from a network device, where the first indication information is used to indicate a first uplink time domain symbol, and the first uplink time domain symbol includes at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink and downlink configuration period;

a processor 1201, configured to determine the first uplink time domain symbol according to the first indication information.

Fig. 13 shows a schematic structure diagram of a communication apparatus 1300. The communications apparatus 1300 can implement the functionality of the network devices referred to above. The communication apparatus 1300 may be the network device described above, or may be a chip disposed in the network device described above. The communication device 1300 may include a processor 1301 and a transceiver 1302. Processor 1301 may be used, among other things, to perform S81 in the embodiment illustrated in fig. 8, and/or other processes to support the techniques described herein. Transceiver 1302 may be used to perform S82 in the embodiment shown in fig. 8, and/or other processes for supporting the techniques described herein.

For example, the processor 1301 is configured to determine first indication information, where the first indication information is used to indicate a first downlink time domain symbol, and the first downlink time domain symbol is at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration cycle;

a transceiver 1302, configured to send the first indication information.

Fig. 14 shows a schematic structure of a communication apparatus 1400. The communication apparatus 1400 may implement the functions of the terminal device referred to above. The communication apparatus 1400 may be the terminal device described above, or may be a chip provided in the terminal device described above. The communication device 1400 may include a processor 1401 and a transceiver 1402. Processor 1401 may be used, among other things, to perform S83 in the embodiment shown in fig. 8, and/or other processes for supporting the techniques described herein. The transceiver 1402 may be used to perform S82 in the embodiment shown in fig. 8, and/or other processes for supporting the techniques described herein.

For example, the transceiver 1402 is configured to receive, from a network device, first indication information, where the first indication information is used to indicate a position of a first downlink time domain symbol, where the first downlink time domain symbol includes at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in at least one uplink and downlink configuration period;

a processor 1401 configured to determine the first downlink time domain symbol according to the first indication information.

Fig. 15 shows a schematic configuration diagram of a communication apparatus 1500. The communications apparatus 1500 can implement the functionality of the network devices referred to above. The communication apparatus 1500 may be the network device described above, or may be a chip provided in the network device described above. The communications apparatus 1500 can include a processor 1501 and a transceiver 1502. Processor 1501 may be used, among other things, to perform S101 in the embodiment shown in fig. 10, and/or other processes for supporting the techniques described herein. The transceiver 1502 may be used to perform S102 in the embodiment shown in fig. 10, and/or other processes for supporting the techniques described herein.

For example, the processor 1501 is configured to determine third indication information and fourth indication information, where the third indication information is used to indicate a first uplink time domain symbol, the first uplink time domain symbol is at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink and downlink configuration period, and the fourth indication information is used to indicate a first downlink time domain symbol, and the first downlink time domain symbol is at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in the uplink and downlink configuration period;

a transceiver 1502 configured to transmit the third indication information and the fourth indication information.

Fig. 16 shows a schematic diagram of a communication device 1600. The communication apparatus 1600 can implement the functions of the terminal device referred to above. The communication device 1600 may be the terminal device described above, or may be a chip provided in the terminal device described above. The communication device 1600 may include a processor 1601 and a transceiver 1602. Processor 1601 may be used, among other things, to perform S103 in the embodiment shown in fig. 10, and/or other processes for supporting the techniques described herein. The transceiver 1602 may be used to perform S102 in the embodiment shown in fig. 10, and/or other processes to support the techniques described herein.

For example, the transceiver 1602 is configured to receive, from a network device, third indication information and fourth indication information, where the third indication information is used to indicate a first uplink time domain symbol, where the first uplink time domain symbol is at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink and downlink configuration period, and the fourth indication information is used to indicate a first downlink time domain symbol, where the first downlink time domain symbol is at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in the uplink and downlink configuration period;

a processor 1601, configured to determine the first uplink time domain symbol according to the third indication information, and determine the first downlink time domain symbol according to the fourth indication information.

In a simple embodiment, those skilled in the art can also realize the communication apparatus 1100, the communication apparatus 1200, the communication apparatus 1300, the communication apparatus 1400, the communication apparatus 1500, or the communication apparatus 1600 by the structure of the communication apparatus 1700 as shown in fig. 17A. The communication apparatus 1700 may implement the functions of the terminal device or the network device referred to above. The communication device 1700 may include a processor 1701.

Where the communications apparatus 1700 is used to implement the functionality of the network devices referred to above, the processor 1701 may be configured to execute S61 in the embodiment shown in fig. 6, and/or other processes for supporting the techniques described herein; alternatively, where the communications apparatus 1700 is used to implement the functionality of the network devices referred to above, the processor 1701 may be configured to execute S81 in the embodiment shown in fig. 8, and/or other processes for supporting the techniques described herein; alternatively, where the communications apparatus 1700 is used to implement the functionality of a terminal device as referred to above, the processor 1701 may be used to perform S63 in the embodiment shown in fig. 6, and/or other processes for supporting the techniques described herein; alternatively, where the communications apparatus 1700 is used to implement the functionality of a terminal device as referred to above, the processor 1701 may be used to perform S83 in the embodiment shown in fig. 8, and/or other processes for supporting the techniques described herein.

The communication apparatus 1700 may be implemented by a field-programmable gate array (FPGA), an application-specific integrated circuit (ASIC), a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a digital signal processing circuit (DSP), a Micro Controller Unit (MCU), or a programmable controller (PLD) or other integrated chips, and may be disposed in the first network device or the second network device of the embodiment of the present application, so that the first network device or the second network device implements the method provided in the embodiment of the present application.

In an alternative implementation, the communication apparatus 1700 may include a transceiving component for communicating with other devices. Where the communications apparatus 1700 is used to implement the functionality of the network device or the terminal device referred to above, the transceiving component may be configured to perform S62 in the embodiment shown in fig. 6, and/or other processes for supporting the techniques described herein; alternatively, when the communication apparatus 1700 is used to implement the functions of the network device or the terminal device mentioned above, the transceiving component may be used to execute S82 in the embodiment shown in fig. 8. For example, one of the transceiving components is a communication interface, if the communication apparatus 1700 is a network device or a terminal device, the communication interface may be a transceiver in the network device or the terminal device, such as the transceiver 1202 or the transceiver 1402, the transceiver is, for example, a radio frequency transceiving component in the network device or the terminal device, or if the communication apparatus 1700 is a chip disposed in the network device or the terminal device, the communication interface may be an input/output interface of the chip, such as an input/output pin, and the like.

In an alternative implementation, the communications apparatus 1700 may further include a memory 1702, see fig. 17B, wherein the memory 1702 is configured to store computer programs or instructions and the processor 1701 is configured to decode and execute the computer programs or instructions. It will be appreciated that these computer programs or instructions may comprise the functional programs of the network devices or terminal devices described above. When the functional program of the network device is decoded and executed by the processor 1701, the network device can be enabled to implement the functions of the network device in the method provided by the embodiment shown in fig. 6 or the embodiment shown in fig. 8 in the present application. When the functional program of the terminal device is decoded and executed by the processor 1701, the terminal device can be enabled to implement the functions of the terminal device in the method provided by the embodiment shown in fig. 6 or the embodiment shown in fig. 8 in the present application.

In an alternative implementation, the functional programs of these network devices or terminal devices are stored in a memory external to communications apparatus 1700. When the functional program of the network device is decoded and executed by the processor 1701, a part or all of the content of the functional program of the network device is temporarily stored in the memory 1702. When the terminal device function program is decoded and executed by the processor 1701, part or all of the contents of the terminal device function program are temporarily stored in the memory 1702.

In an alternative implementation, the functional programs of these network devices or terminal devices are provided in the memory 1702 stored inside the communication apparatus 1700. When the memory 1702 inside the communication apparatus 1700 stores the function program of the network device, the communication apparatus 1700 may be provided in the network device according to the embodiment of the present application. When the memory 1702 inside the communication apparatus 1700 stores the function program of the terminal device, the communication apparatus 1700 may be provided in the terminal device of the embodiment of the present application.

In yet another alternative implementation, some of the contents of the functional programs of these network devices are stored in a memory external to the communication apparatus 1700, and other contents of some of the functional programs of these network devices are stored in a memory 1702 internal to the communication apparatus 1700. Alternatively, part of the contents of the function programs of these terminal devices are stored in a memory external to the communication apparatus 1700, and the other part of the contents of the function programs of these terminal devices are stored in a memory 1702 internal to the communication apparatus 1700.

In the embodiment of the present application, the communication apparatus 1100, the communication apparatus 1200, the communication apparatus 1300, the communication apparatus 1400, and the communication apparatus 1700 are presented in the form of dividing each functional module in accordance with each function, or may be presented in the form of dividing each functional module in an integrated manner. As used herein, a "module" may refer to an ASIC, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other components that provide the described functionality.

In addition, the embodiment shown in fig. 11 provides a communication apparatus 1100 which can be implemented in other forms. The communication device comprises, for example, a processing module and a transceiver module. For example, the processing module may be implemented by the processor 1101 and the transceiver module may be implemented by the transceiver 1102. Among other things, the processing module may be used to perform S61 in the embodiment shown in fig. 6, and/or other processes for supporting the techniques described herein. The transceiver module may be used to perform S62 in the embodiment shown in fig. 6, and/or other processes for supporting the techniques described herein.

For example, the processing module is configured to determine first indication information, where the first indication information is used to indicate a first uplink time domain symbol, and the first uplink time domain symbol is at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration period;

and the transceiver module is used for transmitting the first indication information.

The embodiment shown in fig. 12 provides a communication apparatus 1200 which can be implemented in other forms. The communication device comprises, for example, a processing module and a transceiver module. For example, the processing module may be implemented by the processor 1201, and the transceiver module may be implemented by the transceiver 1202. Among other things, the processing module may be used to perform S63 in the embodiment shown in fig. 6, and/or other processes for supporting the techniques described herein. The transceiver module may be used to perform S62 in the embodiment shown in fig. 6, and/or other processes for supporting the techniques described herein.

For example, the transceiver module is configured to receive first indication information from a network device, where the first indication information is used to indicate a first uplink time domain symbol, and the first uplink time domain symbol includes at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink transition position in all downlink-to-uplink transition positions in an uplink and downlink configuration period;

and the processing module is used for determining the first uplink time domain symbol according to the first indication information.

The embodiment shown in fig. 13 provides a communication apparatus 1300 which can be implemented in other forms. The communication device comprises, for example, a processing module and a transceiver module. For example, the processing module may be implemented by the processor 1301 and the transceiver module may be implemented by the transceiver 1302. Among other things, the processing module may be used to perform S81 in the embodiment shown in fig. 8, and/or other processes for supporting the techniques described herein. The transceiver module may be used to perform S82 in the embodiment shown in fig. 8, and/or other processes for supporting the techniques described herein.

For example, the processing module is configured to determine first indication information, where the first indication information is used to indicate a first downlink time domain symbol, and the first downlink time domain symbol is at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration period;

The embodiment shown in fig. 14 provides a communication apparatus 1400 which can be implemented in other forms. The communication device comprises, for example, a processing module and a transceiver module. For example, the processing means may be embodied by the processor 1401 and the transceiver means may be embodied by the transceiver 1402. Among other things, the processing module may be used to perform S83 in the embodiment shown in fig. 8, and/or other processes for supporting the techniques described herein. The transceiver module may be used to perform S82 in the embodiment shown in fig. 8, and/or other processes for supporting the techniques described herein.

For example, the transceiver module is configured to receive first indication information from a network device, where the first indication information is used to indicate a position of a first downlink time domain symbol, and the first downlink time domain symbol includes at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in at least one uplink and downlink configuration period;

and a processing module, configured to determine the first downlink time domain symbol according to the first indication information.

The embodiment shown in fig. 15 provides a communication apparatus 1500 which can be realized in other forms. The communication device comprises, for example, a processing module and a transceiver module. For example, the processing module may be implemented by the processor 1501 and the transceiver module may be implemented by the transceiver 1502. Among other things, the processing module may be used to perform S101 in the embodiment shown in fig. 10, and/or other processes for supporting the techniques described herein. The transceiver module may be used to perform S102 in the embodiment shown in fig. 10, and/or other processes for supporting the techniques described herein.

For example, the processing module is configured to determine third indication information and fourth indication information, where the third indication information is used to indicate a first uplink time domain symbol, the first uplink time domain symbol is at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink and downlink configuration period, the fourth indication information is used to indicate a first downlink time domain symbol, and the first downlink time domain symbol is at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in the uplink and downlink configuration period;

and the transceiver module is used for transmitting the third indication information and the fourth indication information.

The embodiment shown in fig. 16 provides a communication device 1600 that can also be implemented in other forms. The communication device comprises, for example, a processing module and a transceiver module. For example, the processing module may be implemented by the processor 1601 and the transceiver module may be implemented by the transceiver 1602. Among other things, the processing module may be used to perform S103 in the embodiment shown in fig. 10, and/or other processes for supporting the techniques described herein. The transceiver module may be used to perform S102 in the embodiment shown in fig. 10, and/or other processes for supporting the techniques described herein.

For example, the transceiver module is configured to receive, from a network device, third indication information and fourth indication information, where the third indication information is used to indicate a first uplink time domain symbol, the first uplink time domain symbol is at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink and downlink configuration period, and the fourth indication information is used to indicate a first downlink time domain symbol, and the first downlink time domain symbol is at least one continuous downlink time domain symbol in a downlink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in the uplink and downlink configuration period;

and a processing module, configured to determine the first uplink time domain symbol according to the third indication information, and determine the first downlink time domain symbol according to the fourth indication information.

Since the communication apparatus 1100, the communication apparatus 1200, the communication apparatus 1300, the communication apparatus 1400, the communication apparatus 1500, the communication apparatus 1600, and the communication apparatus 1700 provided in the embodiment of the present application can be used to execute the method provided in the embodiment shown in fig. 6 or the embodiment shown in fig. 8, reference may be made to the above method embodiment for obtaining technical effects, which are not described herein again.

Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may 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 loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Versatile Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.

Claims

1. An information transmission method, comprising:

determining first indication information, where the first indication information is used to indicate a first uplink time domain symbol, where the first uplink time domain symbol is at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration period;

and sending the first indication information.

2. The method of claim 1, further comprising:

and sending second indication information, where the second indication information is used to indicate a first parameter, or is used to indicate a difference value, where the first parameter is used to determine uplink sending power used on the first uplink time domain symbol, the difference value is a difference value between uplink sending power used on a second uplink time domain symbol and uplink sending power used on the first uplink time domain symbol, and the second uplink time domain symbol includes other uplink time domain symbols in the uplink and downlink configuration period except the first uplink time domain symbol.

3. The method of claim 1 or 2, wherein sending the first indication information comprises:

and sending a system message, wherein the system message comprises the first indication information.

4. The method according to any one of claims 1 to 3,

the first parameter is different from a second parameter, where the first parameter is used to determine uplink transmission power used on the first uplink time domain symbol, the second parameter is used to determine uplink transmission power used on a second uplink time domain symbol, and the second uplink time domain symbol includes other uplink time domain symbols in the uplink and downlink configuration period except the first uplink time domain symbol.

5. An information receiving method, comprising:

receiving first indication information from a network device, where the first indication information is used to indicate a first uplink time domain symbol, and the first uplink time domain symbol includes at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink and downlink configuration period;

and determining the first uplink time domain symbol according to the first indication information.

6. The method of claim 5,

7. The method of claim 6, further comprising:

receiving second indication information from the network device, where the second indication information includes the first parameter, or where the second indication information includes a difference between an uplink transmission power employed on the second uplink time domain symbol and an uplink transmission power employed on the first uplink time domain symbol.

8. The method of any of claims 5 to 7, wherein receiving the first indication information from the network device comprises:

receiving a system message from the network device, the system message including the first indication information.

9. The method according to any one of claims 1 to 8,

the first indication information includes the number of at least one continuous uplink time domain symbol in an uplink time period corresponding to one downlink-to-uplink switching position in the uplink and downlink configuration period, and the one downlink-to-uplink switching position is any one downlink-to-uplink switching position in the uplink and downlink configuration period; or the like, or, alternatively,

the first indication information includes the number of at least one continuous uplink time domain symbol in an uplink time period corresponding to one downlink-to-uplink conversion position in the uplink and downlink configuration period, and the position of an initial time domain symbol in the at least one continuous uplink time domain symbol, where the one downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or the like, or, alternatively,

the first indication information includes a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, and the downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period; or the like, or, alternatively,

the first indication information includes a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to a downlink-to-uplink conversion position in the uplink and downlink configuration period, and a number of at least one continuous uplink time domain symbol in an uplink time period corresponding to the downlink-to-uplink conversion position, and the downlink-to-uplink conversion position is any one downlink-to-uplink conversion position in the uplink and downlink configuration period.

10. The method according to claim 9, wherein the first uplink time domain symbol includes uplink time domain symbols that have the same number of at least one consecutive uplink time domain symbol in each uplink time period in the uplink and downlink configuration period.

11. The method of claim 5,

the determining, by the first indication information, the first uplink time domain symbol includes a number of at least one continuous uplink time domain symbol in an uplink time period corresponding to a downlink-to-uplink transition position in the uplink and downlink configuration period, and includes:

determining the first uplink time domain symbol according to the first indication information and a predetermined position of a starting time domain symbol in the at least one continuous uplink time domain symbol;

or the like, or, alternatively,

the first indication information includes a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period after a downlink-to-uplink conversion position in the uplink and downlink configuration period, and the determining the first uplink time domain symbol according to the first indication information includes:

and determining the first uplink time domain symbol according to the first indication information and the position of the starting time domain symbol in the at least one continuous uplink time domain symbol determined in advance.

12. The method of claim 11, wherein a starting time domain symbol of the predetermined at least one consecutive uplink time domain symbol is a first time domain symbol in an uplink time period after the downlink-to-uplink transition position.

13. The method according to any one of claims 1 to 8,

the first indication information includes the number of at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period; or the like, or, alternatively,

the first indication information includes the number of at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration cycle, and the position of a starting time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position; or the like, or, alternatively,

the first indication information includes a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink and downlink configuration period; or the like, or, alternatively,

the first indication information includes a position of a last time domain symbol in at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in the uplink configuration cycle, and a number of at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position.

14. The method according to any one of claims 9 to 13,

the position of the starting time domain symbol in the at least one continuous uplink time domain symbol in the uplink time period corresponding to one downlink-to-uplink conversion position in one uplink and downlink configuration period is determined by taking the position of the first uplink time domain symbol after the one downlink-to-uplink conversion position as a reference position, or is determined by taking the position of the first downlink time domain symbol in the one uplink and downlink configuration period as a reference position; or the like, or, alternatively,

the position of the last time domain symbol in the at least one continuous uplink time domain symbol in the uplink time period corresponding to one downlink-to-uplink conversion position in one uplink and downlink configuration cycle is determined by taking the position of the last uplink time domain symbol in the uplink time period corresponding to the one downlink-to-uplink conversion position as a reference position.

15. A network device, comprising:

a processor, configured to determine first indication information, where the first indication information is used to indicate a first uplink time domain symbol, and the first uplink time domain symbol is at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink and downlink configuration period;

a transceiver for transmitting the first indication information.

16. The device of claim 15, wherein the transceiver is further configured to:

17. The apparatus according to claim 15 or 16, wherein the transceiver is configured to transmit the first indication information as follows:

18. The apparatus according to any one of claims 15 to 17,

19. A terminal device, comprising:

a transceiver, configured to receive first indication information from a network device, where the first indication information is used to indicate a first uplink time domain symbol, and the first uplink time domain symbol includes at least one continuous uplink time domain symbol in an uplink time period corresponding to each downlink-to-uplink conversion position in all downlink-to-uplink conversion positions in an uplink configuration period;

and the processor is used for determining the first uplink time domain symbol according to the first indication information.

20. The apparatus of claim 19,

21. The device of claim 20, wherein the transceiver is further configured to:

22. The device of any of claims 19 to 21, wherein the transceiver is configured to receive the first indication information from the network device as follows:

23. The apparatus according to any one of claims 15 to 22,

24. The apparatus according to claim 23, wherein the first uplink time domain symbol includes uplink time domain symbols that have the same number of at least one consecutive uplink time domain symbol in each uplink time period in the uplink and downlink configuration period.

25. The apparatus of claim 19,

or the like, or, alternatively,

26. The apparatus of claim 25, wherein a starting time domain symbol of the predetermined at least one consecutive uplink time domain symbol is a first time domain symbol in an uplink time period after the downlink-to-uplink transition position.

27. The apparatus according to any one of claims 15 to 22,

28. The apparatus according to any one of claims 23 to 27,

29. A communication device configured to perform the method of any one of claims 1-4, 9, 10, 13, 14.

30. A communication device configured to perform the method of any of claims 5-14.

31. A computer-readable storage medium, characterized in that it stores a computer program comprising program instructions which, when executed by a computer, cause the computer to carry out the method according to any one of claims 1 to 4, 9, 10, 13, 14.

32. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program comprising program instructions which, when executed by a computer, cause the computer to carry out the method according to any one of claims 5 to 14.