CN111836382B - A method for indicating the position of an end symbol, a terminal and a network side device - Google Patents

Abstract

The invention provides an indication method of an end symbol position, a terminal and network side equipment, and relates to the technical field of communication. The indication method of the end symbol position is applied to a terminal and comprises the following steps: and sending uplink control information UCI, wherein the UCI comprises indication information of the end symbol position of the currently transmitted first physical uplink shared channel PUSCH, and the indication information of the end symbol position is used for determining the listen before talk LBT type of the network side equipment. By the scheme, the network side equipment can be ensured to select a proper LBT type so as to improve the channel access efficiency and further ensure the communication reliability.

Description

A method for indicating end symbol position, terminal and network side device

Technical Field

The present invention relates to the field of communication technology, and in particular to a method for indicating an end symbol position, a terminal, and a network side device.

Background Art

In the fourth generation (4G) communication, the UE of autonomous uplink access (AUL) transmits information on the resources pre-configured by the base station. The base station configures the end symbol of the PUSCH of the last subframe transmitted by AUL to 12 or 13 through RRC. The UE can indicate the end symbol as 12 or 13 in the AUL-UCI by 1 bit. If the UE indicates that the base station can transmit PDCCH in subframe N, the UE will terminate the transmission of PUSCH in advance at symbol 12 in subframe N-1, and indicate the end symbol as 12 in the AUL-UCI, thereby overwriting the RRC configuration of the end symbol of the last PUSCH.

In the 5G (5Generation, 5G) communication system, AUL is also called configured grant (CG) UE. Flexible subcarrier configuration is added in 5G, including 15khz, 30khz, and 60khz, and the length of each symbol is 71us, 35us, and 17us respectively. In this case, if the end symbol configuration of the 4G communication system is used, for the 30khz and 60khz subcarriers, the conditions for LBT Cat 4 (LBT type four) are not met. Moreover, in the case where the base station can share the COT obtained by the configured grant CG terminal (configured grant UE), the CG UE obtains the COT by doing Cat 4 of listen before talk (LBT for short). If it is shared with the base station, according to the method of the 4G communication system, the base station can do LBTCat 2 to obtain the channel, but in the 5G communication system, the base station can also choose to do LBT Cat 1 (LBT type one).

Therefore, considering the multiple subcarrier spacing configurations and multiple optional LBT types of the 5G communication system, it is necessary to flexibly indicate the end symbol position for different subcarrier spacings in order to reasonably determine which LBT the base station uses for channel access.

Summary of the invention

The embodiments of the present invention provide a method for indicating the end symbol position, a terminal and a network side device to solve the problem that the network side device in the 5G system can only perform a fixed type of LBT, cannot flexibly select the LBT type, and cannot improve the channel access efficiency.

In order to solve the above technical problems, the present invention adopts the following solutions:

In a first aspect, an embodiment of the present invention provides a method for indicating an end symbol position, which is applied to a terminal, and includes:

Uplink control information UCI is sent, where the UCI includes indication information of the end symbol position of the first physical uplink shared channel PUSCH currently being transmitted, where the indication information of the end symbol position is used to determine the listen-before-talk LBT type of the network side device.

In a second aspect, an embodiment of the present invention provides a method for indicating an end symbol position, which is applied to a network side device, including:

The uplink control information UCI sent by the receiving terminal includes indication information of the end symbol position of the first physical uplink shared channel PUSCH currently being transmitted, and the indication information of the end symbol position is used to determine the listen-before-talk LBT type of the network side device.

In a third aspect, an embodiment of the present invention provides a method for indicating an end symbol position, which is applied to a network side device, including:

Sending radio resource control RRC signaling to the terminal;

The RRC signaling includes an indication of an end symbol position of a second PUSCH based on a time slot transmission, and the second PUSCH is the last PUSCH for which the configuration authorization is actually continuously transmitted;

The end symbol position indication includes: the end symbol number of the second PUSCH, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located.

In a fourth aspect, an embodiment of the present invention provides a terminal, including:

The first sending module is used to send uplink control information UCI, where the UCI includes indication information of the end symbol position of the first physical uplink shared channel PUSCH currently being transmitted, and the indication information of the end symbol position is used to determine the listen-before-talk LBT type of the network side device.

In a fifth aspect, an embodiment of the present invention provides a terminal, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the steps of the above-mentioned method for indicating the end symbol position when executed by the processor.

In a sixth aspect, an embodiment of the present invention provides a network side device, including:

The first receiving module is used to receive uplink control information UCI sent by the terminal, where the UCI includes indication information of the end symbol position of the first physical uplink shared channel PUSCH currently being transmitted, and the indication information of the end symbol position is used to determine the listen-before-talk LBT type of the network side device.

In a seventh aspect, an embodiment of the present invention provides a network side device, including:

The second sending module is used to send radio resource control RRC signaling to the terminal;

The RRC signaling includes an indication of an end symbol position of a second PUSCH based on a time slot transmission, and the second PUSCH is the last PUSCH for which the configuration authorization is actually continuously transmitted;

The end symbol position indication includes: the end symbol number of the second PUSCH, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located.

In an eighth aspect, an embodiment of the present invention provides a network side device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the steps of the above-mentioned method for indicating the end symbol position when executed by the processor.

In a ninth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above-mentioned method for indicating the end symbol position are implemented.

The beneficial effects of the present invention are:

The above scheme, by sending indication information for assisting the network side device in determining the end symbol position of the PUSCH of the LBT type, can ensure that the network side device can select the appropriate LBT type to improve channel access efficiency and thereby ensure communication reliability.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram showing a flow chart of a method for indicating an end symbol position according to an embodiment of the present invention;

FIG2 is a second flow chart of a method for indicating an end symbol position according to an embodiment of the present invention;

FIG3 is a schematic diagram showing modules of a terminal according to an embodiment of the present invention;

FIG4 is a block diagram showing a structure of a terminal according to an embodiment of the present invention;

FIG5 is a schematic diagram showing one of the modules of a network side device according to an embodiment of the present invention;

FIG6 is a block diagram showing a structure of a network side device according to an embodiment of the present invention;

FIG7 is a third flow chart of a method for indicating the end symbol position according to an embodiment of the present invention;

FIG. 8 shows a second schematic diagram of modules of the network side device according to an embodiment of the present invention.

DETAILED DESCRIPTION

In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

When describing the embodiments of the present invention, some concepts used in the following description are first explained.

1. Channel Idle Detection

In the fifth generation (5G) communication system, before transmitting information in the unlicensed frequency band, on the unlicensed frequency band of the new radio (NR), before sending information, the terminal or network equipment needs to perform channel idle estimation (Clear Channel Assess, CCA)/extended channel idle estimation (extended Clear Channel Assess, eCCA) to listen to the channel, that is, perform energy detection (Energy Detection, ED). When the energy is lower than a certain threshold, the channel is judged to be empty before transmission can begin, that is, listen before talk (LBT). Since the unlicensed frequency band is shared by multiple technologies or multiple transmission nodes, this contention-based access method leads to uncertainty in the channel available time. Currently, there are three types of LBT that can be used for 5G unlicensed communication systems:

LBT type 1: directly sent without any CCA, and can be used only when the channel has been acquired and the transmission conversion interval is less than 16us;

LBT type 2: 25us or 16us channel listening, can be used for specific signal acquisition channels, the maximum continuous transmission length should be less than a certain value, such as 1ms;

LBT type 4: Channel monitoring with fusion random fallback is performed, and different priority parameters are set differently. Finally, the maximum length that can be transmitted after obtaining the channel is also different. For LBT type 4, when the uplink and downlink priorities are the lowest, the time required for a fallback is 7*9+16＝79us. In other words, a gap of at least 79us must be guaranteed to be sufficient for LBT type 4.

2. End symbol indication of the fourth generation (4G) unlicensed communication system

The user equipment UE (User Equipment, UE, also known as terminal) of autonomous uplink access (AUL) transmits information on resources pre-configured by the base station (network-side equipment). In the 5G communication system, AUL is also called configured grant (CG) UE.

The base station configures the end symbol of the PUSCH of the last subframe of AUL to 12 or 13 through the radio resource control RRC (Radio Resource Control, RRC). The UE transmits AUL-UCI in subframe n, which contains a 1-bit field "COTsharing indication" to indicate whether the eNB can share the channel occupancy time COT (Channel Occupancy Time, COT) obtained by the UE in the subframe n+X. X is configured by RRC and 1<X<5. If this field is ‘1’, it means that the base station can perform downlink transmission in the above subframe, and the base station can only transmit PDCCH and cannot send PDSCH. The UE can indicate the end symbol as 12 or 13 in the AUL-UCI through 1 bit. If the UE indicates that the base station can transmit PDCCH in subframe N, the UE will terminate the transmission of PUSCH in advance at symbol 12 in subframe N-1, and indicate the end symbol as 12 in the AUL-UCI, thereby overwriting the RRC configuration of the end symbol of the last PUSCH.

3. Channel Occupancy Time (COT) Shared Transmission in 5G Unlicensed Communication Systems

In the current standard discussion, the 5G unlicensed communication system agrees to support single and multiple downlink DL to uplink UL and UL to DL switching within the channel occupancy time (COT) obtained by the base station, and the base station will ensure that the time interval of the transmission switching will not appear in the interval greater than 16us and less than 25us, and meet the following LBT requirements, including:

For a transmission transition interval of less than 16us, LBT Cat 1 is performed.

For a time interval p of transmission switching equal to 25 us, LBT Cat 2 is performed.

For a transmission switching time interval equal to 16us, LBT Cat 1 or LBT Cat 2 (LBT type two) is performed.

There is no consensus on the time interval for transmission transitions greater than 25us, including the following discussions:

(1) For a COT with only one switching point, the DL to UL switch is performed using Cat 2 LBT.

(2) For multiple switching points within the COT, whether the DL to UL switching should be performed using Category 2 LBT remains to be discussed.

4. 4G unlicensed communication system start transmission offset configuration

In order to prevent conflicts during PUSCH transmission, the 4G unlicensed communication system configures symbol-level offsets in RRC. For UEs with full bandwidth transmission, an offset is randomly configured for each UE in the set. For UEs with partial bandwidth transmission, RRC configures the same offset. The offset set within COT is {34us, 43us, 52us, 61us, OS1}, and the offset set outside COT is {16us, 25us, 34us, 43us, 52us, 61us, OS1}.

The present invention comprehensively considers multiple subcarrier spacing configurations and multiple optional LBT types of the 5G communication system, and proposes a method for indicating the end symbol position, a terminal, and a network-side device to address the problem that the network-side device in the 5G system can only perform a fixed type of LBT, cannot flexibly select the LBT type, and cannot improve the channel access efficiency.

As shown in FIG. 1 , an embodiment of the present invention provides a method for indicating an end symbol position, which is applied to a terminal and includes:

Step 101, sending uplink control information UCI;

It should be noted that the UCI includes indication information of the end symbol position of the first physical uplink shared channel (PUSCH) currently being transmitted, and the indication information of the end symbol position is used to determine the listen-before-talk LBT type of the network side device. That is to say, the indication information of the end symbol position determines the LBT type that the network side device can perform, or it can be understood that the LBT type that the network side device can perform can be determined based on the indicated information. Here, the manner in which the indication information determines the listen-before-talk LBT type of the network side device can be to independently determine the LBT type or to jointly determine the LBT type (that is, to indicate together by combining with other fields).

Specifically, the first PUSCH is the PUSCH currently being transmitted.

It should be noted that the LBT types mentioned in the embodiments of the present invention are mainly: LBT type 1, 16us LBT type 2, or 25us LBT type 2. Among them, LBT type 1 refers to direct transmission without any CCA; 16us LBT type 2 refers to 16us channel monitoring, and 25us LBT type 2 refers to 25us channel monitoring.

In this embodiment, in one case, the indication information includes the end symbol number of the first PUSCH, that is, the indication information directly indicates the end symbol position of the currently transmitted PUSCH; in another case, the indication information includes the number of symbols between the end symbol of the first PUSCH and the end edge of the transmission time unit where the first PUSCH is located, that is, the indication information does not directly indicate the end symbol position of the currently transmitted PUSCH, but indicates the number of symbols that differ between the end symbol of the first PUSCH and the end edge of the transmission time unit where the first PUSCH is located. The network side device can determine the end symbol position of the currently transmitted PUSCH based on the number of symbols that differ.

It should be noted that, for the end symbol number of the PUSCH, when based on time slot transmission, that is, when the number of symbols in the transmission time unit is 14 symbols, the value range of the end symbol number can be a positive integer from 0 to 13, that is, from symbol 0 to symbol 13, a total of 14 symbols; when based on mini-slot transmission, that is, when the number of symbols in the time unit is less than 14 symbols, the end symbol number is a positive integer greater than or equal to 0 and less than 13, and the specific number value is related to the number of symbols corresponding to the mini-slot. For example, if the number of symbols in the mini-slot is 5, the value range of the end symbol number is a positive integer from 0 to 4, that is, including: symbol 0, symbol 1, symbol 2, symbol 3 and symbol 4, a total of 5 symbols of the mini-slot length. For the number of symbols between the end symbol of the PUSCH and the end edge of the time unit where the PUSCH is located, it can be understood that it is another configuration method of the end symbol position, in which the number of symbols between the position of the end symbol and the end edge of the time unit where the PUSCH is located is specified. For example, if the number of symbols in the time unit is 14, then another way of expressing the end symbol number as 12 (symbol 12) corresponds to: the number of symbols between the end symbol of the PUSCH and the end edge of the time unit where the PUSCH is located is 1 symbol.

It should be noted that the end symbol position indicated by the indication information is related to the number of symbols in the transmission time unit where the first PUSCH is located.

It should be noted that the first PUSCH is transmitted based on the transmission time unit. Then, the transmission time unit may include: a time slot and a micro-time slot, wherein a time slot includes 14 symbols, and a micro-time slot includes less than 14 symbols. In this way, when the transmission time unit is a time slot, the length of the transmission time unit is 14 symbols, and when the transmission time unit is a micro-time slot, the length of the transmission time unit is less than 14 symbols. It can be seen that the end symbol position indicated by the transmission indication information is related to the length of the time unit where the corresponding PUSCH is located, that is, when based on time slot transmission and based on micro-time slot transmission, the end symbol position indicated by the indication information is different.

1. When the indication information is indicated by the end symbol indication field in the UCI

It should be further explained that the end symbol position indicated by the value of the end symbol indication field is related to whether the network side device is allowed to share the next transmission time unit after the first PUSCH.

In this embodiment, the end symbol indication field in the UCI may be used to indicate the indication information, and here, the end symbol indication field may specifically include an "ending symbol" field. For example, a 1-bit "ending symbol" field may be used to indicate the indication information. In the embodiments of the present invention, the meanings of the bit values involved are also applicable vice versa, and the values in the following embodiments are only used as illustrative examples. The subcarrier spacing here may include: 15khz, 30khz, 60khz.

Further, in the two cases of sharing the next transmission time unit after the first PUSCH with the network side device and not sharing the next time unit after the first PUSCH with the network side device, the end symbol position indicated by the value of the end symbol indication field is different. Here, sharing the next transmission time unit after the first PUSCH with the network side device can save time and frequency resources and increase the probability of successful channel access of the network side device.

It should be further explained that the end symbol position indicated by the same value of the end symbol indication field is related to the subcarrier spacing.

It can be understood that, for example, when the bit of the "ending symbol" field is "0", it can indicate that the subcarrier spacing of 30khz is symbol 12, and it can also indicate that the subcarrier spacing of 60khz is symbol 13. Further, when the bit of the "ending symbol" field is "0", it can indicate that the subcarrier spacings of 15khz, 30khz, and 60khz are different end symbol positions, and it can also indicate that the subcarrier spacings of 15khz, 30khz, and 60khz are the same end symbol positions.

It should also be noted that, in this case, the UCI also includes an LBT type indication field.

Furthermore, the LBT type indicated by the value of the LBT type indication field is related to the value of the end symbol indication field, and different values of the LBT type indication field indicate different LBT types.

It should also be noted that in this case, if the UCI indicates that the LBT type of the network device is type one or 16us type two, the terminal or the network device fills at least part of the time gap, and the time gap is from the end symbol position to the end edge of the transmission time unit. By filling part of the time gap, in the case of LBT type one and 16us LBT type two, the time requirement for switching between the uplink and the downlink can be met.

It should be pointed out that if the network side device independently determines the LBT type, the time gap is filled by the network side device, and the filling gap may include but is not limited to the duplication of CP.

For ease of understanding, the following description of the indication information is as follows for the case where the transmission time unit is a time slot and the end symbol field is an "endingsymbol" field, by targeting the subcarrier spacings of 15 khz, 30 khz, and 60 khz:

Case A1: The UE indicates that the transmission time unit after the current PUSCH is not shared with the network side device

Instruction method 1:

As shown in Table 1 below, when based on time slot transmission, the "ending symbol" bit can be set to '0' to indicate that the PUSCH transmission ends at symbol 13 for the current subcarrier interval. The "ending symbol" bit can be set to '1' to indicate that the PUSCH transmission ends at symbol 12, symbol 11, and symbol 9 for 15khz, 30khz, and 60khz, respectively. That is,

When the "ending symbol" bit is "0":

When the subcarrier spacing is 15KHz, the end symbol of the last PUSCH is determined to be symbol 13; when the subcarrier spacing is 30KHz, the end symbol of the last PUSCH is determined to be symbol 13; when the subcarrier spacing is 60KHz, the end symbol of the last PUSCH is determined to be symbol 13;

When the "ending symbol" bit is "1":

When the subcarrier spacing is 15KHz, the end symbol of the last PUSCH is determined to be symbol twelve; when the subcarrier spacing is 30KHz, the end symbol of the last PUSCH is determined to be symbol eleven; when the subcarrier spacing is 60KHz, the end symbol of the last PUSCH is determined to be symbol nine.

Table 1

Ending symbol 15khz 30khz 60khz 0 13 13 13 1 12 11 9

or,

As shown in Table 2 below, when based on time slot transmission, the "ending symbol" bit can also be "0" to represent that the current subcarrier interval has 0 empty symbols before the end of PUSCH transmission. The "ending symbol" bit is "1" to represent that 15khz, 30khz, and 60khz have 1 empty symbol, 2 empty symbols, and 4 empty symbols before the end of PUSCH transmission. That is,

When the "ending symbol" bit is "0":

When the subcarrier spacing is 15 kHz, the end symbol of the last PUSCH is determined to be zero symbol away from the last symbol of the timeslot in which the PUSCH is transmitted;

When the subcarrier spacing is 30 kHz, the end symbol of the last PUSCH is determined to be zero symbol away from the last symbol of the timeslot in which the PUSCH is transmitted;

When the subcarrier spacing is 60 KHz, the end symbol of the last PUSCH is determined to be zero symbol away from the last symbol of the time slot in which the PUSCH is transmitted.

When the "ending symbol" bit is "1":

When the subcarrier spacing is 15KHz, the end symbol of the last PUSCH is determined to be one symbol different from the last symbol of the time slot in which the PUSCH is transmitted;

When the subcarrier spacing is 30 kHz, the end symbol of the last PUSCH is determined to be two symbols away from the last symbol of the time slot in which the PUSCH is transmitted;

When the subcarrier spacing is 60 KHz, the end symbol of the last PUSCH is determined to be four symbols away from the last symbol of the time slot in which the PUSCH is transmitted.

Table 2

Ending symbol 15khz 30khz 60khz 0 0 0 0 1 1 2 4

For instruction mode 1, for ease of understanding, the following example is used to illustrate:

If the subcarrier spacing is 30Khz and the "ending symbol" bit is "1", it indicates that the end symbol of the current PUSCH corresponds to symbol 11 in Table 1, or 2 empty symbols in Table 2, that is, it indicates that the current PUSCH ends sending at symbol 11, or indicates that when the current PUSCH ends sending, there are 2 empty symbols away from the end boundary of the current time slot.

If the subcarrier spacing is 60Khz and the "ending symbol" bit is "1", it indicates that the end symbol of the current PUSCH corresponds to symbol 9 in Table 1, or 4 empty symbols in Table 2, that is, it indicates that the current PUSCH ends sending at symbol 9, or indicates that when the current PUSCH ends sending, there are 4 empty symbols away from the end boundary of the current time slot.

Instruction method 2:

As shown in Table 3 below, when based on time slot transmission, the "ending symbol" bit can be set to '0' to represent the end of PUSCH transmission at symbol 13 for the current subcarrier spacing. That is,

When the "ending symbol" bit is "0":

When the subcarrier spacing is 15KHz, the end symbol of the last PUSCH is determined to be symbol 13; when the subcarrier spacing is 30KHz, the end symbol of the last PUSCH is determined to be symbol 13; when the subcarrier spacing is 60KHz, the end symbol of the last PUSCH is determined to be symbol 13;

Table 3

or

As shown in Table 4 below, when based on time slot transmission, the "ending symbol" bit can also be set to "0" to represent that the current subcarrier interval is empty before the end of PUSCH transmission. That is,

When the "ending symbol" bit is "0":

When the subcarrier spacing is 15 kHz, the end symbol of the last PUSCH is determined to be zero symbol away from the last symbol of the timeslot in which the PUSCH is transmitted;

When the subcarrier spacing is 30 kHz, the end symbol of the last PUSCH is determined to be zero symbol away from the last symbol of the timeslot in which the PUSCH is transmitted;

When the subcarrier spacing is 60 KHz, the end symbol of the last PUSCH is determined to be zero symbol away from the last symbol of the time slot in which the PUSCH is transmitted.

Table 4

Ending symbol 15khz 30khz 60khz 0 0 0 0

Case A2: The UE indicates that the transmission time unit after the current PUSCH is shared with the network side device

Instruction method 1:

As shown in Table 5 below, when based on time slot transmission, the "ending symbol" bit can be set to '0' to indicate that the PUSCH transmission ends at symbol 12 for the current subcarrier interval. The "ending symbol" bit can be set to '1' to indicate that the PUSCH transmission ends at symbol 12, symbol 12, and symbol 11 for 15khz, 30khz, and 60khz, respectively. That is,

When the "ending symbol" bit is "0":

When the subcarrier spacing is 15KHz, the end symbol of the last PUSCH is determined to be symbol twelve;

When the subcarrier spacing is 30KHz, the end symbol of the last PUSCH is determined to be symbol twelve;

When the subcarrier spacing is 60KHz, the end symbol of the last PUSCH is determined to be symbol twelve;

When the "ending symbol" bit is "1":

When the subcarrier spacing is 15KHz, the end symbol of the last PUSCH is determined to be symbol twelve; when the subcarrier spacing is 30KHz, the end symbol of the last PUSCH is determined to be symbol twelve; when the subcarrier spacing is 60KHz, the end symbol of the last PUSCH is determined to be symbol eleven.

Table 5

Ending symbol 15khz 30khz 60khz 0 12 12 12 1 12 12 11

or

As shown in Table 6 below, when transmitting based on time slots, the "ending symbol" bit can also be "0" to represent that the current subcarrier interval has one empty symbol before the PUSCH ends transmission. The "ending symbol" bit is "1" to represent that the 15khz, 30khz, and 60khz subcarriers have one empty symbol, one empty symbol, and two empty symbols before the PUSCH ends transmission. That is,

When the "ending symbol" bit is "0":

When the subcarrier spacing is 15KHz, the end symbol of the last PUSCH is determined to be one symbol different from the last symbol of the time slot in which the PUSCH is transmitted;

When the subcarrier spacing is 30 kHz, the end symbol of the last PUSCH is determined to be one symbol different from the last symbol of the time slot in which the PUSCH is transmitted;

When the subcarrier spacing is 60 KHz, the end symbol of the last PUSCH is determined to be one symbol different from the last symbol of the time slot in which the PUSCH is transmitted.

When the "ending symbol" bit is "1":

When the subcarrier spacing is 15KHz, the end symbol of the last PUSCH is determined to be one symbol different from the last symbol of the time slot in which the PUSCH is transmitted;

When the subcarrier spacing is 30 kHz, the end symbol of the last PUSCH is determined to be one symbol different from the last symbol of the time slot in which the PUSCH is transmitted;

When the subcarrier spacing is 60 KHz, the end symbol of the last PUSCH is determined to be two symbols away from the last symbol of the time slot in which the PUSCH is transmitted.

Table 6

Ending symbol 15khz 30khz 60khz 0 1 1 1 1 1 1 2

Further, it should be noted that in the indication mode 1 in the above situation A2, the 1-bit field "LBT type" carried in the UCI can be used to indicate the LBT type performed by the network side device, which may specifically include:

(1) When the "ending symbol" bit is "0":

When "LBT type" is "0", it indicates that the network-side device performs LBT type 1;

When "LBT type" is "1", it indicates that the LBT type performed by the network side device is LBT type 2 of 16us.

(2) When the "ending symbol" bit is "1":

When "LBT type" is "0", it indicates that the network-side device performs LBT type 1;

When "LBT type" is "1", it indicates that the LBT type performed by the network side device is LBT type 2 of 25us.

Instruction method 2:

As shown in Table 7 below, when based on time slot transmission, the "ending symbol" bit can be set to '0' to represent the end of PUSCH transmission at symbol 12, symbol 11, and symbol 9 for subcarrier spacing 15khz, 30khz, and 60khz, respectively. That is,

When the "ending symbol" bit is "0":

When the subcarrier spacing is 15KHz, the end symbol of the last PUSCH is determined to be symbol twelve;

When the subcarrier spacing is 30KHz, the end symbol of the last PUSCH is determined to be symbol eleven;

When the subcarrier spacing is 60KHz, the end symbol of the last PUSCH is determined to be symbol nine;

Table 7

Ending symbol 15khz 30khz 60khz 0 12 11 9

or

As shown in Table 8 below, when based on time slot transmission, the "ending symbol" bit can also be set to "0" to represent that for subcarrier spacings of 15khz, 30khz, and 60khz, there will be 1 empty symbol, 2 empty symbols, and 4 empty symbols before the end of PUSCH transmission. That is,

When the "ending symbol" bit is "0":

When the subcarrier spacing is 15 kHz, the end symbol of the last PUSCH is determined to be zero symbol away from the last symbol of the timeslot in which the PUSCH is transmitted;

When the subcarrier spacing is 30 kHz, the end symbol of the last PUSCH is determined to be two symbols away from the last symbol of the time slot in which the PUSCH is transmitted;

When the subcarrier spacing is 60 KHz, the end symbol of the last PUSCH is determined to be four symbols away from the last symbol of the time slot in which the PUSCH is transmitted.

Table 8

Ending symbol 15khz 30khz 60khz 0 0 2 4

Further, it should be noted that in the indication method 2 in the above situation A2, the 2-bit field "LBT type" carried in the UCI can be used to indicate the LBT type performed by the network side device. Optionally, the indication method may include:

When "LBT type" is "00", it indicates that the LBT type performed by the network-side device is 16us LBT type 2;

When "LBT type" is "01", it indicates that the LBT type performed by the network-side device is 25us LBT type 2;

When "LBT type" is "10", it indicates that the network side device performs LBT type 1.

It should be noted that, based on the above exemplary embodiments, when the transmission time unit is a mini-time slot, the method for calculating the end symbol position may specifically include the following:

M11. When X≤13 and M>(13-X), the end symbol number of the first PUSCH in the first transmission time unit is equal to M-14+X;

or,

When Y≥0 and M>Y, the number of symbols between the end symbol of the first PUSCH in the first transmission time unit and the end edge of the first transmission time unit is equal to Y;

Among them, M is the number of symbols in the first transmission time unit of the first PUSCH, 0<M≤14, X is the end symbol number of the first PUSCH based on the time slot transmission, Y is the number of symbols between the end symbol of the first PUSCH based on the time slot transmission and the end edge of the time slot, X and Y are both integers greater than or equal to 0, and X+Y=13.

M12. When X<(13-X), the end symbol number of the first PUSCH in the first transmission time unit is equal to ((13-X) mod M)-1;

or,

When M<Y, the number of symbols between the end symbol of the first PUSCH in the first transmission time unit and the end edge of the first transmission time unit is equal to Y mod M;

Among them, M is the number of symbols of the first PUSCH in the first transmission time unit, 0<M≤14, X is the end symbol number of the first PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the first PUSCH based on time slot transmission and the end edge of the time slot, X and Y are both integers greater than or equal to 0, and X+Y=13.

In this embodiment, the end symbol position based on mini-time slot transmission in UCI is converted by the end symbol position based on time slot in UCI through the method in this embodiment. For example, when the actual number of symbols M of the time unit where the current PUSCH is located is 7 and the number of symbols Y between the end symbol of the current PUSCH based on time slot transmission and the end edge of the time slot is 1 (the end symbol number X of the current PUSCH based on time slot transmission is 12), M is greater than Y or M is greater than (13-X), then the end symbol number of the current PUSCH based on the mini-time slot is M-Y-1=7-1-1=5.

2. Indication information is indicated by the first indication field in the UCI

It should be noted that the first indication field may include an "endingpusch" field. Here, a 1-bit field "endingpusch" may be used to indicate the indication information.

Further, in the case where the network side device is not allowed to share the next transmission time unit after the first PUSCH, the first indication field is used to indicate whether the first PUSCH is the last PUSCH for which authorization is configured to be actually continuously transmitted. Optionally, in the case where the first PUSCH is not the last PUSCH for which authorization is actually continuously transmitted, the end symbol position of the first PUSCH is: the last symbol of the transmission time unit where the first PUSCH is located; optionally, in the case where the first PUSCH is the last PUSCH for which authorization is actually continuously transmitted, the end symbol position of the first PUSCH is determined according to the end symbol position configured by RRC signaling.

In this embodiment, the RRC signaling is configured by the network side device and sent to the terminal. It can be understood that when the number of symbols in the transmission time unit is 14 symbols, that is, when the transmission time unit is a time slot, the last symbol is symbol 13, or, is a symbol with a symbol number of 0 spaced from the end edge of the transmission time unit where the last PUSCH is located.

It should further be noted that, when the network side device is allowed to share the next transmission time unit after the first PUSCH, the first indication field and the second indication field in the UCI jointly indicate the LBT type of the network side device.

In this embodiment, the second indication field may include: a 1-bit field "LBT type" or a 2-bit field "LBT type".

The following describes the indication information through the first indication field (which may be an "endingpusch" field) of the indication information, and divides the case B1 and the case B2 into the following descriptions:

Case B1: The UE indicates that the transmission time unit after the current PUSCH is not shared with the network side device

As shown in Table 9 below, when based on time slot transmission, the "endingpusch" bit can be used as '0' to indicate that the current PUSCH transmission is not the last PUSCH. By default, the subcarrier spacing of 15khz, 30khz, and 60khz ends the transmission at symbol 13; the "endingpusch" bit is '1', which means that the end symbol of 15khz, 30khz, and 60khz is indicated by default according to the configuration of RRC signaling. That is,

When the "endingpusch" bit is "0":

When the subcarrier spacing is 15KHz, the end symbol of the last PUSCH is determined to be symbol twelve;

When the subcarrier spacing is 30KHz, the end symbol of the last PUSCH is determined to be symbol twelve;

When the subcarrier spacing is 60KHz, the end symbol of the last PUSCH is determined to be symbol twelve;

When the "endingpusch" bit is '1': the configuration of RRC signaling includes:

When the subcarrier spacing is 15 kHz, the end symbol of the last PUSCH is determined to be symbol twelve or symbol thirteen;

When the subcarrier spacing is 30 kHz, the end symbol of the last PUSCH is determined to be symbol 11 or symbol 13;

When the subcarrier spacing is 60 kHz, the end symbol of the last PUSCH is determined to be symbol nine or symbol thirteen;

Table 9

endingpusch 15khz 30khz 60khz 0 13 13 13 1 13/12 13/11 13/9

or

As shown in Table 10 below, when based on time slot transmission, the "endingpusch" bit can also be used as "0" to represent that the current PUSCH transmission is 0 symbols before the end of transmission. The "endingpusch" bit is "1" to represent that for subcarrier spacing 15khz, 30khz, and 60khz, there are 0 or 1 empty symbols, 0 or 2 empty symbols, and 0 or 4 empty symbols before the end of PUSCH transmission. That is,

When the "endingpusch" bit is "0":

When the subcarrier spacing is 15 kHz, the end symbol of the last PUSCH is determined to be zero symbol away from the last symbol of the timeslot in which the PUSCH is transmitted;

When the subcarrier spacing is 30 kHz, the end symbol of the last PUSCH is determined to be zero symbol away from the last symbol of the timeslot in which the PUSCH is transmitted;

When the subcarrier spacing is 60 KHz, the end symbol of the last PUSCH is determined to be zero symbol away from the last symbol of the time slot in which the PUSCH is transmitted.

When the "endingpusch" bit is '1': the configuration of RRC signaling includes:

When the subcarrier spacing is 15 kHz, the end symbol of the last PUSCH is determined to be zero symbol or one symbol different from the last symbol of the time slot in which the PUSCH is transmitted;

When the subcarrier spacing is 30 kHz, the end symbol of the last PUSCH is determined to be zero symbol or two symbols different from the last symbol of the time slot in which the PUSCH is transmitted;

When the subcarrier spacing is 60 KHz, the end symbol of the last PUSCH is determined to be zero symbol or four symbols different from the last symbol of the time slot in which the PUSCH is transmitted.

Table 10

endingpusch 15khz 30khz 60khz 0 0 0 0 1 0/1 0/2 0/4

Case B2: The UE indicates that the transmission time unit after the current PUSCH is shared with the network side device

If the terminal indicates that the time slot after the current PUSCH can be shared with the network side device, the current PUSCH must be the last PUSCH. The default 15khz, 30khz, and 60khz end PUSCH transmission at symbols 12, 12, and 11 respectively. As shown in Table 11 below, that is,

When the "endingpusch" bit is "0" and the "endingpusch" bit is "1":

When the subcarrier spacing is 15KHz, the end symbol of the last PUSCH is determined to be symbol twelve;

When the subcarrier spacing is 30KHz, the end symbol of the last PUSCH is determined to be symbol twelve;

When the subcarrier spacing is 60 KHz, the end symbol of the last PUSCH is determined to be symbol eleven.

Table 11

Endingpusch 15khz 30khz 60khz 0 12 12 11 1 12 12 11

or

As shown in Table 11 below, by default, for subcarrier spacings of 15khz, 30khz, and 60khz, there are 1 empty symbol, 1 empty symbol, and 2 empty symbols before the end of PUSCH transmission. That is,

When the "endingpusch" bit is "0" and the "endingpusch" bit is "1":

When the subcarrier spacing is 15 kHz, the end symbol of the last PUSCH is determined to be one symbol different from the last symbol of the time slot in which the PUSCH is transmitted;

When the subcarrier spacing is 30 kHz, the end symbol of the last PUSCH is determined to be one symbol different from the last symbol of the time slot in which the PUSCH is transmitted;

When the subcarrier spacing is 60 KHz, the end symbol of the last PUSCH is determined to be two symbols away from the last symbol of the time slot in which the PUSCH is transmitted.

Table 11

Endingpusch 15khz 30khz 60khz 0 1 1 2 1 1 1 2

It should be noted that in this case where the time slot after the current PUSCH can be shared with the network side device, the field "endingpusch" can be used in conjunction with the "LBT type" field to indicate the type of LBT that the network side device can do, which may include:

When “endingpusch” is “0”, it indicates that the network-side device is to perform LBT Cat 1. When “endingpusch” is “1”, it indicates that the network-side device is to perform LBT Cat 2.

Among them, when "endingpusch" indicates Cat 2, the field "LBT type" carried in the UCI is further used to indicate which subtype of LBT type 2 is used. Among them, "LBT type" is "0" to indicate that the network side device uses 16us LBT type 2, and "LBT type" is "1" to indicate that the network side device uses 25us LBT type 2.

It should also be noted that in this case, if the UCI indicates that the LBT type of the network device is type one or 16us type two, the terminal or the network device fills at least part of the time gap, and the time gap is from the end symbol position to the end edge of the transmission time unit. By filling part of the time gap, in the case of LBT type one and 16us LBT type two, the time requirement for switching between the uplink and the downlink can be met.

It should be further explained that before sending the UCI, it also includes:

receiving radio resource control (RRC) signaling;

The RRC signaling includes an indication of an end symbol position of a second PUSCH based on a time slot transmission, and the second PUSCH is the last PUSCH for which the configuration authorization is actually continuously transmitted;

The end symbol position indication includes: the end symbol number of the second PUSCH, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located.

In conjunction with Table 12 and Table 13, the configuration of the end symbol position of the last PUSCH when the RRC signaling is transmitted based on the time slot is introduced as follows:

Two integers, such as integer 0 and integer 1, can be used as identification numbers in RRC signaling to indicate the end symbols corresponding to different subcarrier spacings.

As an implementation method, the end symbol of the RRC signaling configuration may be configured in the form of symbol X, and specifically for different subcarrier spacings, it may be as shown in the following Table 12:

Table 12

Identification number 15khz 30khz 60khz 0 12 11 9 1 13 13 13

Among them, 0 represents that the PUSCH transmission ends at symbol 12, symbol 11, and symbol 9 for different subcarrier spacings of 15khz, 30khz, and 60khz, respectively. 1 represents that the PUSCH transmission ends at symbol 13 for different subcarrier spacings of 15khz, 30khz, and 60khz.

It can be seen that when the transmission is based on time slots, the configuration of the RRC signaling includes the following:

When the subcarrier spacing is 15 kHz, the end symbol of the last PUSCH is determined to be symbol twelve or symbol thirteen;

When the subcarrier spacing is 30 kHz, the end symbol of the last PUSCH is determined to be symbol 11 or symbol 13;

When the subcarrier spacing is 60 kHz, the end symbol of the last PUSCH is determined to be symbol nine or symbol thirteen;

When the subcarrier spacing is 15 kHz, the end symbol of the last PUSCH is determined to be zero symbol or one symbol different from the last symbol of the time slot in which the PUSCH is transmitted;

When the subcarrier spacing is 30 kHz, the end symbol of the last PUSCH is determined to be zero symbol or two symbols different from the last symbol of the time slot in which the PUSCH is transmitted;

When the subcarrier spacing is 60 KHz, the end symbol of the last PUSCH is determined to be zero symbol or four symbols different from the last symbol of the time slot in which the PUSCH is transmitted.

As another implementation method, the end symbol configured by RRC may be configured in a manner of leaving Y symbols empty before the end of PUSCH transmission, and specifically for different subcarrier spacings, it may be as shown in the following Table 13:

Table 13

Identification number 15khz 30khz 60khz 0 1 2 4 1 0 0 0

Among them, 0 means that for different subcarrier spacings of 15khz, 30khz, and 60khz, the PUSCH transmission ends with 1 symbol, 2 symbols, and 3 symbols respectively before the PUSCH transmission ends. 1 means that for different subcarrier spacings of 15khz, 30khz, and 60khz, the PUSCH transmission ends with 0 symbols before the PUSCH transmission ends.

It should be pointed out that the end symbol position of the last PUSCH configured through RRC signaling is: leave 1 symbol, 2 symbols, or 3 symbols empty before the end of PUSCH transmission, or end PUSCH transmission at symbol 12, symbol 11, and symbol 9 respectively. This can achieve LBT type 4 channel access for different subcarrier spacings of 15khz, 30khz, and 60khz, where LBT type 4 is channel sensing with integrated random fallback.

It can be understood that when transmitting based on time slots, each time slot includes 14 symbols, and the 14 symbols include symbol 0, symbol 1, symbol 2, symbol 3, symbol 4, ..., symbol 12, and symbol 13. Therefore, it can be known that symbol 13 corresponds to the last symbol of the time slot. Further, it can be understood that X+Y=13.

It should be noted that there are Y empty symbols before the end of PUSCH transmission, that is, the number of symbols between the end symbol of the PUSCH and the end edge of the transmission time unit where the PUSCH is located is Y.

Further, after receiving the RRC signaling, the method further includes:

Determining, according to the end symbol position indication, an end symbol position of a second PUSCH in the first transmission time unit, where the second PUSCH is an end symbol position of the mth last PUSCH for which authorization is configured and prepared for continuous transmission;

Wherein, m is a positive integer.

Specifically, the method of determining the end symbol position of the second PUSCH in the first transmission time unit includes one of the following:

A11. When the number of symbols of the first transmission time unit of the PUSCH configured for authorization to be transmitted is equal, if (13-X) mod M = 0 or Y mod M = 0 is satisfied, it is determined that the end symbol number of the second PUSCH is M-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if (13-X) mod M = 0 and Y mod M = 0 are not satisfied, it is determined that the end symbol number of the second PUSCH is equal to ((13-X) mod M)-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to Y mod M;

Among them, m is ceil(Y/M), M is the number of symbols in the first transmission time unit where the second PUSCH is located, X is the end symbol number of the second PUSCH based on the time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on the time slot transmission and the end edge of the time slot, and X+Y=13, wherein ceil(Y/M) means rounding up Y/M.

A12. When the number of symbols in the first transmission time unit of the PUSCH configured for transmission authorization is not equal, if Determine that the end symbol number of the second PUSCH is M _m -1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if not satisfied Determine that the end symbol number of the second PUSCH is equal to ((13-X) mod M _m )-1, or that the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to (Y mod M _m );

It should be noted that _Mm is the number of symbols in the first transmission time unit of the second PUSCH, and m is the first time that , X is the end symbol number of the second PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on time slot transmission and the end edge of the time slot, and X+Y=13.

In this embodiment, it should be noted that the number of symbols in the first transmission time unit where the second PUSCH is located includes two situations: equal and unequal, that is, the length of the micro-slot is divided into two situations: the number of symbols is fixed and the number of symbols is not fixed. Among them, the non-fixed symbol length of the micro-slot means that the symbol lengths of the micro-slots where each PUSCH is located are not the same. Further, when transmitting based on the micro-slot, the configuration of the end symbol position of the last PUSCH based on the micro-slot by RRC signaling can be converted through the above formula based on the configuration of the end symbol position of the last PUSCH by RRC during time slot transmission. For example, when the actual number of symbols M of the time unit where the current PUSCH is located is 4 and the number of symbols Y between the end symbol of the current PUSCH based on time slot transmission and the end edge of the time slot is 4 (the end symbol number X of the current PUSCH based on time slot transmission is 9), (13-X) mod M = 0 or Y mod M = 0 is satisfied, then it is determined that the end symbol number of the second PUSCH is 3, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0.

In order to more clearly understand the above-mentioned method of indicating the end symbol position, an example is provided below for illustration:

Example 1: Based on the case of time slot transmission, if the RRC signaling uses the integer "1" to indicate that the number of symbols between the end symbol of the last PUSCH transmitted with a 30Khz subcarrier interval and the end edge of the transmission time unit where the PUSCH is located is 2. For the indication in the UCI, the UE does not share the next transmission time unit after the current transmission PUSCH with the base station. The UCI indicates '0' in the non-last PUSCH and '1' in the last PUSCH. The last PUSCH ends transmission at symbol 11.

Example 2: Based on the situation of time slot transmission, if the RRC signaling uses the integer "0" to indicate that the end symbol number of the last PUSCH transmitted with a 60Khz subcarrier interval is 9. For the indication in the UCI, if the first indication field endingpusch indicates '0', and the terminal indicates that the slot after the current PUSCH can be shared with the base station, then the current default end symbol of the last PUSCH must be 11, and it represents that the base station is performing LBT type 1. The base station fills the CP to make the gap no greater than 16us and performs LBT type 1 channel access.

Example 3: In the case of mini-slot transmission, the subcarrier spacing is 60Khz, and the RRC signaling uses the integer "0" to indicate that the end symbol number of the last PUSCH is 9. Therefore, for PUSCH based on mini-slot transmission with a length of 7 symbols, the end symbol of the last PUSCH is 2. If the terminal indicates that the mini-slot after the current PUSCH can be shared with the base station, the ending symbol field in the UCI is '0', indicating that the end symbol number of the PUSCH of the mini-slot with a length of 7 symbols is 7-1-1=5, and the LBT type field is '0', indicating that the base station uses LBT type 1 for channel access.

The above scheme realizes flexible indication of the end symbol position of PUSCH transmission for different subcarrier spacings. Furthermore, the indicated end symbol position can be used to reasonably determine which LBT the base station uses for channel access, thereby improving resource utilization.

As shown in FIG. 2 , an embodiment of the present invention provides a method for indicating an end symbol position, which is applied to a network side device, including:

Step 201, receiving uplink control information UCI sent by a terminal, wherein the UCI includes indication information of an end symbol position of a first physical uplink shared channel PUSCH currently being transmitted, and the indication information of the end symbol position is used to determine a listen-before-talk LBT type of a network-side device.

Optionally, the indication information includes: the end symbol number of the first PUSCH, or the number of symbols between the end symbol of the first PUSCH and the end edge of the transmission time unit where the first PUSCH is located.

Further, the UCI includes an end symbol indication field for indicating the indication information, and an LBT type indication field;

Among them, different values of the LBT type indication field indicate different LBT types.

Optionally, the indication information is indicated by a first indication field in the UCI, and when the network side device is allowed to share the transmission time unit after the PUSCH, the first indication field and the second indication field in the UCI jointly indicate the LBT type of the network side device.

Further, after the uplink control information UCI sent by the receiving terminal, it also includes:

According to the type of LBT indicated in the UCI, LBT was performed.

Further, after the uplink control information UCI sent by the receiving terminal, it also includes:

The LBT type is determined according to the indication information of the end symbol position.

Specifically, when the LBT type is type one or 16us type two, the network device fills at least part of the time gap, where the time gap is from the end symbol position to the end edge of the transmission time unit.

Optionally, before the uplink control information UCI sent by the receiving terminal, the method further includes:

Sending radio resource control RRC signaling to the terminal;

The RRC signaling includes an indication of an end symbol position of a second PUSCH based on a time slot transmission, and the second PUSCH is the last PUSCH for which the configuration authorization is actually continuously transmitted;

The end symbol position indication includes: the end symbol number of the second PUSCH, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located.

Specifically, a method for determining an end symbol position of the second PUSCH in the first transmission time unit includes:

In the case where the number of symbols of the first transmission time unit where the PUSCH to be transmitted is configured to be equal, if (13-X) mod M = 0 or Y mod M = 0 is satisfied, it is determined that the end symbol number of the second PUSCH is M-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if (13-X) mod M = 0 and Y mod M = 0 are not satisfied, it is determined that the end symbol number of the second PUSCH is equal to ((13-X) mod M)-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to Y mod M;

Wherein, m is ceil(Y/M), M is the number of symbols in the first transmission time unit where the second PUSCH is located, X is the end symbol number of the second PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on time slot transmission and the end edge of the time slot, and X+Y=13, where ceil(Y/M) represents rounding up Y/M;

The second PUSCH is the end symbol position of the mth last PUSCH for which authorization is configured to prepare for continuous transmission, where m is a positive integer.

Specifically, a method for determining an end symbol position of the second PUSCH in the first transmission time unit includes:

When the number of symbols in the first transmission time unit of the PUSCH configured for transmission authorization is not equal, if Determine that the end symbol number of the second PUSCH is M _m -1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if not satisfied Determine that the end symbol number of the second PUSCH is equal to ((13-X) mod M _m )-1, or that the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to (Y mod M _m );

Wherein, M _m is the number of symbols in the first transmission time unit of the second PUSCH, and m is the first time to meet , X is the end symbol number of the second PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on time slot transmission and the end edge of the time slot, and X+Y=13;

The second PUSCH is the end symbol position of the mth last PUSCH for which authorization is configured to prepare for continuous transmission, where m is a positive integer.

It should be noted that all descriptions about the network-side device in the above embodiments are applicable to the embodiments of the method for indicating the end symbol position applied to the terminal, and can achieve the same technical effect.

As shown in FIG3 , an embodiment of the present invention provides a terminal 300, including

The first sending module 301 is used to send uplink control information UCI, where the UCI includes indication information of the end symbol position of the first physical uplink shared channel PUSCH currently being transmitted, and the indication information of the end symbol position is used to determine the listen-before-talk LBT type of the network side device.

Specifically, the indication information includes: the end symbol number of the first PUSCH, or the number of symbols between the end symbol of the first PUSCH and the end edge of the transmission time unit where the first PUSCH is located.

Specifically, the end symbol position indicated by the indication information is related to the number of symbols in the transmission time unit where the first PUSCH is located.

Optionally, when X≤13 and M>(13-X), the end symbol number of the first PUSCH in the first transmission time unit is equal to M-14+X;

or,

When Y≥0 and M>Y, the number of symbols between the end symbol of the first PUSCH in the first transmission time unit and the end edge of the first transmission time unit is equal to Y;

Among them, M is the number of symbols in the first transmission time unit of the first PUSCH, 0<M≤14, X is the end symbol number of the first PUSCH based on the time slot transmission, Y is the number of symbols between the end symbol of the first PUSCH based on the time slot transmission and the end edge of the time slot, X and Y are both integers greater than or equal to 0, and X+Y=13.

Optionally, when X<(13-X), the end symbol number of the first PUSCH in the first transmission time unit is equal to ((13-X) mod M)-1;

or,

When M<Y, the number of symbols between the end symbol of the first PUSCH in the first transmission time unit and the end edge of the first transmission time unit is equal to Y mod M;

Among them, M is the number of symbols of the first PUSCH in the first transmission time unit, 0<M≤14, X is the end symbol number of the first PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the first PUSCH based on time slot transmission and the end edge of the time slot, X and Y are both integers greater than or equal to 0, and X+Y=13.

Optionally, the indication information is indicated by an end symbol indication field in UCI, and the end symbol position indicated by the value of the end symbol indication field is related to whether the network side device is allowed to share the next transmission time unit after the first PUSCH.

Optionally, the indication information is indicated by an end symbol indication field in UCI, and the end symbol position indicated by the same value of the end symbol indication field is related to the subcarrier spacing.

Optionally, the indication information is indicated by a first indication field in the UCI. When the network side device is not allowed to share the next transmission time unit after the first PUSCH, the first indication field is used to indicate whether the first PUSCH is the last PUSCH for which actual continuous transmission is configured and authorized.

Optionally, when the first PUSCH is not the last PUSCH for which actual continuous transmission is configured and authorized, the end symbol position of the first PUSCH is: the last symbol of the transmission time unit where the first PUSCH is located;

In the case where the first PUSCH is the last PUSCH for which authorization is configured for actual continuous transmission, the end symbol position of the first PUSCH is determined according to the end symbol position configured by RRC signaling.

Furthermore, before sending the UCI, the method further includes:

A second receiving module, used to receive radio resource control RRC signaling;

The RRC signaling includes an indication of an end symbol position of a second PUSCH based on a time slot transmission, and the second PUSCH is the last PUSCH for which the configuration authorization is actually continuously transmitted;

The end symbol position indication includes: the end symbol number of the second PUSCH, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located.

Optionally, after the second receiving module receives the radio resource control RRC signaling, the method further includes:

A first determining module is used to determine, according to the end symbol position indication, an end symbol position of a second PUSCH in the first transmission time unit, where the second PUSCH is an end symbol position of the mth last PUSCH for which authorization is configured to be prepared for continuous transmission;

Wherein, m is a positive integer.

Furthermore, the first determining module is used to:

In the case where the number of symbols of the first transmission time unit where the PUSCH to be transmitted is configured to be equal, if (13-X) mod M = 0 or Y mod M = 0 is satisfied, it is determined that the end symbol number of the second PUSCH is M-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if (13-X) mod M = 0 and Y mod M = 0 are not satisfied, it is determined that the end symbol number of the second PUSCH is equal to ((13-X) mod M)-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to Y mod M;

Among them, m is ceil(Y/M), M is the number of symbols in the first transmission time unit where the second PUSCH is located, X is the end symbol number of the second PUSCH based on the time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on the time slot transmission and the end edge of the time slot, and X+Y=13, wherein ceil(Y/M) means rounding up Y/M.

Furthermore, the first determining module is used to:

When the number of symbols in the first transmission time unit of the PUSCH configured for transmission authorization is not equal, if Determine that the end symbol number of the second PUSCH is M _m -1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if not satisfied Determine that the end symbol number of the second PUSCH is equal to ((13-X) mod M _m )-1, or that the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to (Y mod M _m );

Wherein, M _m is the number of symbols in the first transmission time unit of the second PUSCH, and m is the first time to meet , X is the end symbol number of the second PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on time slot transmission and the end edge of the time slot, and X+Y=13.

Optionally, the indication information is indicated by a first indication field in the UCI. When the network side device is allowed to share the next transmission time unit after the first PUSCH, the first indication field and the second indication field in the UCI jointly indicate the LBT type of the network side device.

Optionally, the UCI includes an end symbol indication field for indicating the indication information, and the UCI also includes an LBT type indication field;

Among them, different values of the LBT type indication field indicate different LBT types.

Furthermore, the LBT type indicated by the value of the LBT type indication field is related to the value of the end symbol indication field.

Specifically, when the UCI indicates that the LBT type of the network device is type one or 16us type two, at least part of the time gap is filled by the terminal or the network side device, and the time gap is from the end symbol position to the end edge of the first transmission time unit.

Specifically, the LBT type is: LBT type one, LBT type two with 16us, or LBT type two with 25us.

It should be noted that the terminal embodiment is a terminal corresponding to the above-mentioned method for indicating the end symbol position applied to the terminal, and all implementation methods of the above-mentioned embodiments are applicable to the terminal embodiment and can achieve the same technical effects.

As shown in FIG. 4 , it is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present invention.

The terminal 400 includes but is not limited to: a radio frequency unit 410, a network module 420, an audio output unit 430, an input unit 440, a sensor 450, a display unit 460, a user input unit 470, an interface unit 480, a memory 490, a processor 411, and a power supply 412. It can be understood by those skilled in the art that the terminal structure shown in FIG. 4 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown, or combine certain components, or arrange the components differently. In an embodiment of the present invention, the terminal includes but is not limited to a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted terminal, a wearable device, and a pedometer.

The radio frequency unit 410 is used to send uplink control information UCI, wherein the UCI includes indication information of the end symbol position of the first physical uplink shared channel PUSCH currently being transmitted, and the indication information of the end symbol position is used to determine the listen-before-talk LBT type of the network side device.

The terminal of the embodiment of the present invention can ensure that the network side device can select a suitable LBT type to improve channel access efficiency and thus ensure communication reliability by sending indication information to assist the network side device in determining the end symbol position of the LBT type PUSCH.

It should be understood that in the embodiment of the present invention, the radio frequency unit 410 can be used for receiving and sending signals during the process of sending and receiving information or making calls. Specifically, after receiving the downlink data from the network side device, it is sent to the processor 411 for processing; in addition, the uplink data is sent to the network side device. Generally, the radio frequency unit 410 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc. In addition, the radio frequency unit 410 can also communicate with the network and other devices through a wireless communication system.

The terminal provides users with wireless broadband Internet access through the network module 420, such as helping users to send and receive emails, browse web pages, and access streaming media.

The audio output unit 430 can convert the audio data received by the RF unit 410 or the network module 1120 or stored in the memory 490 into an audio signal and output it as sound. In addition, the audio output unit 430 can also provide audio output related to a specific function performed by the terminal 400 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 430 includes a speaker, a buzzer, a receiver, etc.

The input unit 440 is used to receive audio or video signals. The input unit 440 may include a graphics processor (GPU) 441 and a microphone 442, and the graphics processor 441 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The processed image frame can be displayed on the display unit 460. The image frame processed by the graphics processor 441 can be stored in the memory 490 (or other storage medium) or sent via the radio frequency unit 410 or the network module 420. The microphone 442 can receive sound and can process such sound into audio data. The processed audio data can be converted into a format output that can be sent to the mobile communication network side device via the radio frequency unit 410 in the case of a telephone call mode.

The terminal 400 also includes at least one sensor 450, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 461 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 461 and/or the backlight when the terminal 400 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), and can detect the magnitude and direction of gravity when stationary, which can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; the sensor 450 can also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be repeated here.

The display unit 460 is used to display information input by the user or information provided to the user. The display unit 460 may include a display panel 461, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

The user input unit 470 can be used to receive input digital or character information, and to generate key signal input related to the user settings and function control of the terminal. Specifically, the user input unit 470 includes a touch panel 471 and other input devices 472. The touch panel 471, also known as a touch screen, can collect the user's touch operation on or near it (such as the user's operation on the touch panel 471 or near the touch panel 471 using any suitable object or accessory such as a finger, stylus, etc.). The touch panel 471 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into the contact point coordinates, and then sends it to the processor 411, receives the command sent by the processor 411 and executes it. In addition, the touch panel 471 can be implemented in various types such as resistive, capacitive, infrared and surface acoustic waves. In addition to the touch panel 471, the user input unit 470 may also include other input devices 472. Specifically, other input devices 472 may include but are not limited to a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail here.

Further, the touch panel 471 may be covered on the display panel 461. When the touch panel 471 detects a touch operation on or near it, it is transmitted to the processor 411 to determine the type of the touch event, and then the processor 411 provides a corresponding visual output on the display panel 461 according to the type of the touch event. Although in FIG4 , the touch panel 471 and the display panel 461 are used as two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 471 and the display panel 461 may be integrated to implement the input and output functions of the terminal, which is not limited here.

The interface unit 480 is an interface for connecting an external device to the terminal 400. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input/output (I/O) port, a video I/O port, a headphone port, etc. The interface unit 480 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements in the terminal 400 or may be used to transmit data between the terminal 400 and an external device.

The memory 490 can be used to store software programs and various data. The memory 490 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required for a function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory 490 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

The processor 411 is the control center of the terminal. It uses various interfaces and lines to connect various parts of the entire terminal. It executes various functions of the terminal and processes data by running or executing software programs and/or modules stored in the memory 490, and calling data stored in the memory 490, so as to monitor the terminal as a whole. The processor 411 may include one or more processing units; preferably, the processor 411 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 411.

The terminal 400 may also include a power supply 412 (such as a battery) for supplying power to various components. Preferably, the power supply 412 may be logically connected to the processor 411 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system.

In addition, the terminal 400 includes some functional modules not shown, which will not be described in detail here.

Preferably, an embodiment of the present invention also provides a terminal, including a processor 411, a memory 490, and a computer program stored in the memory 490 and executable on the processor 411. When the computer program is executed by the processor 411, each process of an embodiment of a method for indicating the end symbol position applied on the terminal side is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, each process of the method for indicating the end symbol position of the embodiment applied to the terminal is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

As shown in FIG5 , an embodiment of the present invention further provides a network side device 500, including:

The first receiving module 501 is used to receive uplink control information UCI sent by the terminal, where the UCI includes indication information of the end symbol position of the first physical uplink shared channel PUSCH currently being transmitted, and the indication information of the end symbol position is used to determine the listen-before-talk LBT type of the network side device.

Specifically, the indication information includes: the end symbol number of the first PUSCH, or the number of symbols between the end symbol of the first PUSCH and the end edge of the transmission time unit where the first PUSCH is located.

Optionally, the UCI includes an end symbol indication field for indicating the indication information, and an LBT type indication field;

Among them, different values of the LBT type indication field indicate different LBT types.

Optionally, the indication information is indicated by a first indication field in the UCI, and when the network side device is allowed to share the transmission time unit after the PUSCH, the first indication field and the second indication field in the UCI jointly indicate the LBT type of the network side device.

Specifically, after the first receiving module 501 receives the uplink control information UCI sent by the terminal, the method further includes:

The execution module is used to perform LBT according to the LBT type indicated in the UCI.

Optionally, after the first receiving module 501 receives the uplink control information UCI sent by the terminal, the method further includes:

The second determination module is used to determine the LBT type according to the indication information of the end symbol position.

Specifically, when the LBT type is type one or 16us type two, the network device fills at least part of the time gap, where the time gap is from the end symbol position to the end edge of the transmission time unit.

Optionally, before the first receiving module 501 receives the uplink control information UCI sent by the terminal, the method further includes:

The third sending module is used to send radio resource control RRC signaling to the terminal;

The RRC signaling includes an indication of an end symbol position of a second PUSCH based on a time slot transmission, and the second PUSCH is the last PUSCH for which the configuration authorization is actually continuously transmitted;

The end symbol position indication includes: the end symbol number of the second PUSCH, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located.

Further, the method for determining the end symbol position of the second PUSCH in the first transmission time unit includes:

In the case where the number of symbols of the first transmission time unit where the PUSCH to be transmitted is configured to be equal, if (13-X) mod M = 0 or Y mod M = 0 is satisfied, it is determined that the end symbol number of the second PUSCH is M-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if (13-X) mod M = 0 and Y mod M = 0 are not satisfied, it is determined that the end symbol number of the second PUSCH is equal to ((13-X) mod M)-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to Y mod M;

Wherein, m is ceil(Y/M), M is the number of symbols in the first transmission time unit where the second PUSCH is located, X is the end symbol number of the second PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on time slot transmission and the end edge of the time slot, and X+Y=13, where ceil(Y/M) represents rounding up Y/M;

The second PUSCH is the end symbol position of the mth last PUSCH for which authorization is configured to prepare for continuous transmission, where m is a positive integer.

Further, the method for determining the end symbol position of the second PUSCH in the first transmission time unit includes:

When the number of symbols in the first transmission time unit of the PUSCH configured for transmission authorization is not equal, if Determine that the end symbol number of the second PUSCH is M _m -1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if not satisfied Determine that the end symbol number of the second PUSCH is equal to ((13-X) mod M _m )-1, or that the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to (Y mod M _m );

Wherein, M _m is the number of symbols in the first transmission time unit of the second PUSCH, and m is the first time to meet , X is the end symbol number of the second PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on time slot transmission and the end edge of the time slot, and X+Y=13;

The second PUSCH is the end symbol position of the mth last PUSCH for which authorization is configured to prepare for continuous transmission, where m is a positive integer.

An embodiment of the present invention also provides a network side device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the various processes in the above-mentioned embodiment of the method for indicating the end symbol position applied to the network side device are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

The embodiment of the present invention further provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor, each process in the above-mentioned method for indicating the end symbol position applied to the network side device is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

FIG6 is a structural diagram of a network side device according to an embodiment of the present invention, which can implement the details of the above-mentioned method for indicating the end symbol position and achieve the same effect. As shown in FIG6 , the network side device 600 includes: a processor 601, a transceiver 602, a memory 603 and a bus interface, wherein:

The processor 601 is used to read the program in the memory 603 and execute the following process:

The uplink control information UCI sent by the terminal is received by the transceiver 602, and the UCI includes indication information of the end symbol position of the first physical uplink shared channel PUSCH currently being transmitted, and the indication information of the end symbol position is used to determine the listen-before-talk LBT type of the network side device.

In FIG6 , the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 601 and memory represented by memory 603. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 602 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.

Specifically, the indication information includes: the end symbol number of the first PUSCH, or the number of symbols between the end symbol of the first PUSCH and the end edge of the transmission time unit where the first PUSCH is located.

Optionally, the UCI includes an end symbol indication field for indicating the indication information, and an LBT type indication field;

Among them, different values of the LBT type indication field indicate different LBT types.

Optionally, the indication information is indicated by a first indication field in the UCI, and when the network side device is allowed to share the transmission time unit after the PUSCH, the first indication field and the second indication field in the UCI jointly indicate the LBT type of the network side device.

Optionally, the processor 601 is configured to read the program in the memory 603 and further perform the following process:

According to the type of LBT indicated in the UCI, LBT was performed.

Optionally, the processor 601 is configured to read the program in the memory 603 and further perform the following process:

The LBT type is determined according to the indication information of the end symbol position.

Optionally, when the LBT type is type one or 16us type two, the network device fills at least part of the time gap, where the time gap is from the end symbol position to the end edge of the transmission time unit.

The processor 601 is used to read the program in the memory 603 and further perform the following process:

Sending radio resource control RRC signaling to the terminal via the transceiver 602;

The RRC signaling includes an indication of an end symbol position of a second PUSCH based on a time slot transmission, and the second PUSCH is the last PUSCH for which the configuration authorization is actually continuously transmitted;

The end symbol position indication includes: the end symbol number of the second PUSCH, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located.

Specifically, a method for determining an end symbol position of the second PUSCH in the first transmission time unit includes:

In the case where the number of symbols of the first transmission time unit where the PUSCH to be transmitted is configured to be equal, if (13-X) mod M = 0 or Y mod M = 0 is satisfied, it is determined that the end symbol number of the second PUSCH is M-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if (13-X) mod M = 0 and Y mod M = 0 are not satisfied, it is determined that the end symbol number of the second PUSCH is equal to ((13-X) mod M)-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to Y mod M;

Wherein, m is ceil(Y/M), M is the number of symbols in the first transmission time unit where the second PUSCH is located, X is the end symbol number of the second PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on time slot transmission and the end edge of the time slot, and X+Y=13, where ceil(Y/M) represents rounding up Y/M;

The second PUSCH is the end symbol position of the mth last PUSCH for which authorization is configured to prepare for continuous transmission, where m is a positive integer.

Specifically, a method for determining an end symbol position of the second PUSCH in the first transmission time unit includes:

When the number of symbols in the first transmission time unit of the PUSCH configured for transmission authorization is not equal, if Determine that the end symbol number of the second PUSCH is M _m -1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if not satisfied Determine that the end symbol number of the second PUSCH is equal to ((13-X) mod M _m )-1, or that the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to (Y mod M _m );

Wherein, M _m is the number of symbols in the first transmission time unit of the second PUSCH, and m is the first time to meet , X is the end symbol number of the second PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on time slot transmission and the end edge of the time slot, and X+Y=13;

The second PUSCH is the end symbol position of the mth last PUSCH for which authorization is configured to prepare for continuous transmission, where m is a positive integer.

As shown in FIG. 7 , an embodiment of the present invention further provides a method for indicating an end symbol position, which is applied to a network side device, and includes:

Step 701, sending radio resource control RRC signaling to the terminal;

The RRC signaling includes an indication of an end symbol position of a second PUSCH based on a time slot transmission, and the second PUSCH is the last PUSCH for which the configuration authorization is actually continuously transmitted;

The end symbol position indication includes: the end symbol number of the second PUSCH, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located.

Optionally, a method for determining an end symbol position of the second PUSCH in the first transmission time unit includes:

In the case where the number of symbols of the first transmission time unit where the PUSCH to be transmitted is configured to be equal, if (13-X) mod M = 0 or Y mod M = 0 is satisfied, it is determined that the end symbol number of the second PUSCH is M-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if (13-X) mod M = 0 and Y mod M = 0 are not satisfied, it is determined that the end symbol number of the second PUSCH is equal to ((13-X) mod M)-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to Y mod M;

Wherein, m is ceil(Y/M), M is the number of symbols in the first transmission time unit where the second PUSCH is located, X is the end symbol number of the second PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on time slot transmission and the end edge of the time slot, and X+Y=13, where ceil(Y/M) represents rounding up Y/M;

The second PUSCH is the end symbol position of the mth last PUSCH for which authorization is configured to prepare for continuous transmission, where m is a positive integer.

Optionally, a method for determining an end symbol position of the second PUSCH in the first transmission time unit includes:

When the number of symbols in the first transmission time unit of the PUSCH configured for transmission authorization is not equal, if Determine that the end symbol number of the second PUSCH is M _m -1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if not satisfied Determine that the end symbol number of the second PUSCH is equal to ((13-X) mod M _m )-1, or that the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to (Y mod M _m );

Wherein, M _m is the number of symbols in the first transmission time unit of the second PUSCH, and m is the first time to meet , X is the end symbol number of the second PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on time slot transmission and the end edge of the time slot, and X+Y=13;

The second PUSCH is the end symbol position of the mth last PUSCH for which authorization is configured to prepare for continuous transmission, where m is a positive integer.

It should be noted that all descriptions about the network-side device in the above embodiments are applicable to the embodiments of the method for indicating the end symbol position applied to the terminal, and can achieve the same technical effect.

As shown in FIG8 , an embodiment of the present invention further provides a network side device, including:

The third sending module 801 is used to send radio resource control RRC signaling to the terminal;

The RRC signaling includes an indication of an end symbol position of a second PUSCH based on a time slot transmission, and the second PUSCH is the last PUSCH for which the configuration authorization is actually continuously transmitted;

The end symbol position indication includes: the end symbol number of the second PUSCH, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located.

Optionally, a method for determining an end symbol position of the second PUSCH in the first transmission time unit includes:

In the case where the number of symbols of the first transmission time unit where the PUSCH to be transmitted is configured to be equal, if (13-X) mod M = 0 or Y mod M = 0 is satisfied, it is determined that the end symbol number of the second PUSCH is M-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if (13-X) mod M = 0 and Y mod M = 0 are not satisfied, it is determined that the end symbol number of the second PUSCH is equal to ((13-X) mod M)-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to Y mod M;

Wherein, m is ceil(Y/M), M is the number of symbols in the first transmission time unit where the second PUSCH is located, X is the end symbol number of the second PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on time slot transmission and the end edge of the time slot, and X+Y=13, where ceil(Y/M) represents rounding up Y/M;

The second PUSCH is the end symbol position of the mth last PUSCH for which authorization is configured to prepare for continuous transmission, where m is a positive integer.

Optionally, a method for determining an end symbol position of the second PUSCH in the first transmission time unit includes:

When the number of symbols in the first transmission time unit of the PUSCH configured for transmission authorization is not equal, if Determine that the end symbol number of the second PUSCH is M _m -1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if not satisfied Determine that the end symbol number of the second PUSCH is equal to ((13-X) mod M _m )-1, or that the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to (Y mod M _m );

Wherein, M _m is the number of symbols in the first transmission time unit of the second PUSCH, and m is the first time to meet , X is the end symbol number of the second PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on time slot transmission and the end edge of the time slot, and X+Y=13;

The second PUSCH is the end symbol position of the mth last PUSCH for which authorization is configured to prepare for continuous transmission, where m is a positive integer.

It should also be noted that an embodiment of the present invention further provides a network side device, and the specific structure of the network side device is the same as the specific structure of the network side device shown in FIG. 6 .

Specifically, the processor of the network side device is used to read the program in the memory and perform the following process:

Sending radio resource control RRC signaling to the terminal through the transceiver;

The RRC signaling includes an indication of an end symbol position of a second PUSCH based on a time slot transmission, and the second PUSCH is the last PUSCH for which the configuration authorization is actually continuously transmitted;

The end symbol position indication includes: the end symbol number of the second PUSCH, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located.

Optionally, a method for determining an end symbol position of the second PUSCH in the first transmission time unit includes:

In the case where the number of symbols of the first transmission time unit where the PUSCH to be transmitted is configured to be equal, if (13-X) mod M = 0 or Y mod M = 0 is satisfied, it is determined that the end symbol number of the second PUSCH is M-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if (13-X) mod M = 0 and Y mod M = 0 are not satisfied, it is determined that the end symbol number of the second PUSCH is equal to ((13-X) mod M)-1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to Y mod M;

Wherein, m is ceil(Y/M), M is the number of symbols in the first transmission time unit where the second PUSCH is located, X is the end symbol number of the second PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on time slot transmission and the end edge of the time slot, and X+Y=13, where ceil(Y/M) represents rounding up Y/M;

The second PUSCH is the end symbol position of the mth last PUSCH for which authorization is configured to prepare for continuous transmission, where m is a positive integer.

Optionally, a method for determining an end symbol position of the second PUSCH in the first transmission time unit includes:

When the number of symbols in the first transmission time unit of the PUSCH configured for transmission authorization is not equal, if Determine that the end symbol number of the second PUSCH is M _m -1, or the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if not satisfied Determine that the end symbol number of the second PUSCH is equal to ((13-X) mod M _m )-1, or that the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to (Y mod M _m );

Wherein, M _m is the number of symbols in the first transmission time unit of the second PUSCH, and m is the first time to meet , X is the end symbol number of the second PUSCH based on time slot transmission, Y is the number of symbols between the end symbol of the second PUSCH based on time slot transmission and the end edge of the time slot, and X+Y=13;

The second PUSCH is the end symbol position of the mth last PUSCH for which authorization is configured to prepare for continuous transmission, where m is a positive integer.

An embodiment of the present invention also provides a network side device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the various processes in the above-mentioned embodiment of the method for indicating the end symbol position applied to the network side device are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

The embodiment of the present invention further provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor, each process in the above-mentioned method for indicating the end symbol position applied to the network side device can be implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

Among them, the network side equipment can be a base station (Base Transceiver Station, BTS) in Global System of Mobilecommunication (GSM) or Code Division Multiple Access (CDMA), or a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a base station in the future 5G network, etc., which is not limited here.

The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary personnel in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications are also within the scope of protection of the present invention.

Claims (34)

1. An indication method of an end symbol position is applied to a terminal, and is characterized by comprising the following steps:

and sending uplink control information UCI, wherein the UCI comprises indication information of the end symbol position of the currently transmitted first physical uplink shared channel PUSCH, and the indication information of the end symbol position is used for determining the listen before talk LBT type of the network side equipment.

2. The method of indicating an end symbol position according to claim 1, wherein the indication information includes: and the number of the ending symbol of the first PUSCH or the number of symbols of the ending edge interval between the ending symbol of the first PUSCH and the transmission time unit where the first PUSCH is positioned.

3. The method for indicating an end symbol position according to claim 2, wherein the end symbol position indicated by the indication information is related to the number of symbols of the transmission time unit where the first PUSCH is located.

4. The method according to claim 3, wherein in the case where X is equal to or less than 13 and M > (13-X), the end symbol number of the first PUSCH in the first transmission time unit is equal to M-14+x;

or,

when Y is more than or equal to 0 and M is more than Y, the number of symbols between the end symbol of the first PUSCH in the first transmission time unit and the end edge interval of the first transmission time unit is equal to Y;

wherein M is the number of symbols of the first transmission time unit where the first PUSCH is located, M is 0< M is less than or equal to 14, X is the number of symbols at the end of the first PUSCH based on the time slot transmission, Y is the number of symbols between the end symbol of the first PUSCH based on the time slot transmission and the time slot end edge interval, X, Y is an integer greater than or equal to 0, and x+y=13.

5. A method of indicating an end symbol position according to claim 3, wherein in case X < (13-X), the end symbol number of the first PUSCH in the first transmission time unit is equal to ((13-X) mod M) -1;

or,

in the case that M < Y, the number of symbols between the end symbol of the first PUSCH in the first transmission time unit and the end edge of the first transmission time unit is equal to Y mod M;

wherein M is the number of symbols of the first PUSCH in the first transmission time unit, 0< M is less than or equal to 14, X is the number of the ending symbol of the first PUSCH based on the time slot transmission, Y is the number of symbols of the ending symbol of the first PUSCH based on the time slot transmission and the interval between the ending edge of the time slot, X, Y are integers greater than or equal to 0, and x+y=13.

6. The method according to claim 1, wherein the indication information is indicated by an end symbol indication field in UCI, and the end symbol position indicated by the value of the end symbol indication field is related to whether the network-side device is allowed to share the next transmission time unit after the first PUSCH.

7. The method of claim 1, wherein the indication information is indicated by an end symbol indication field in the UCI, and wherein the end symbol position indicated by the same value of the end symbol indication field is related to the subcarrier spacing.

8. The method according to claim 1, wherein the indication information is indicated by a first indication field in the UCI, where the first indication field is used to indicate whether the first PUSCH is a last PUSCH for which configuration grant actually continues transmission, in a case that the network side device is not allowed to share a next transmission time unit after the first PUSCH.

9. The method of indicating an end symbol position according to claim 8, wherein in case the first PUSCH is not a last PUSCH for which grant actual continuous transmission is configured, the end symbol position of the first PUSCH is: the last symbol of the transmission time unit where the first PUSCH is located;

and under the condition that the first PUSCH is the last PUSCH of the configuration grant actual continuous transmission, determining the ending symbol position of the first PUSCH according to the ending symbol position of the RRC signaling configuration.

10. The method of indicating an end symbol position of claim 9, further comprising, prior to transmitting UCI:

receiving Radio Resource Control (RRC) signaling;

the RRC signaling includes an end symbol position indication of a second PUSCH based on slot transmission, where the second PUSCH is a last PUSCH configured to authorize actual continuous transmission;

The end symbol position indication comprises: and the number of the ending symbol of the second PUSCH or the number of symbols of the interval between the ending symbol of the second PUSCH and the ending edge of the first transmission time unit where the second PUSCH is located.

11. The method of ending symbol position indication according to claim 10, further comprising, after said receiving radio resource control, RRC, signaling:

determining an end symbol position of a second PUSCH in the first transmission time unit according to the end symbol position indication, wherein the second PUSCH is an end symbol position of an m-last PUSCH which is configured to authorize preparation for continuous transmission;

wherein m is a positive integer.

12. The method of indicating an end symbol position according to claim 11, wherein determining an end symbol position of the second PUSCH in the first transmission time unit according to the end symbol position indication comprises:

if (13-X) mod m=0 or Y mod m=0 is satisfied when the number of symbols of the first transmission time unit where the PUSCH where the configuration grant is ready for transmission is equal, determining that the end symbol number of the second PUSCH is M-1, or that the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if (13-X) mod m=0 is not satisfied and Ymod m=0 is not satisfied, determining that the number of the ending symbol of the second PUSCH is equal to ((13-X) mod M) -1, or the number of symbols of the interval between the ending symbol of the second PUSCH and the ending edge of the first transmission time unit where the second PUSCH is located is equal to Y mod M;

Wherein M is ceil (Y/M), M is the number of symbols of the first transmission time unit where the second PUSCH is located, X is the number of symbols of the second PUSCH based on the ending symbol of the slot transmission, Y is the number of symbols of the second PUSCH based on the interval between the ending symbol of the slot transmission and the ending edge of the slot, and x+y=13, where ceil (Y/M) represents rounding up Y/M.

13. The method of indicating an end symbol position according to claim 11, wherein determining an end symbol position of the second PUSCH in the first transmission time unit according to the end symbol position indication comprises:

in the case that the number of symbols of the first transmission time unit where the PUSCH is configured to be authorized for transmission is not equal, if the following conditions are satisfiedDetermining the ending symbol number M of the second PUSCH _m -1, or, the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if it does not meetDetermining that the end symbol number of the second PUSCH is equal to ((13-X) mod M _m ) -1, or, the number of symbols between the end symbol of the second PUSCH and the end edge interval of the first transmission time unit in which the second PUSCH is located is equal to (Ymod M _m )；

Wherein M is _m For the number of symbols of the first transmission time unit where the second PUSCH is located, m is the first number of symbols satisfyingX is the number of end symbols of the second PUSCH based on slot transmission, Y is the number of symbols of the second PUSCH based on the end symbols of slot transmission and the interval of the slot end edges, and x+y=13.

14. The method for indicating an end symbol position according to claim 8, wherein the indication information is indicated by a first indication field in the UCI, and wherein the first indication field indicates an LBT type of a network side device in combination with a second indication field in the UCI in a case where the network side device is allowed to share a next transmission time unit after the first PUSCH.

15. The method of indicating an end symbol position according to claim 1, wherein the UCI includes an end symbol indication field for indicating the indication information, and the UCI further includes an LBT type indication field;

wherein different values of the LBT type indication field indicate different LBT types.

16. The method of claim 15, wherein the LBT type indicated by the value of the LBT type indication field is related to the value of the end symbol indication field.

17. The method according to claim 14 or 15 or 16, wherein in case the UCI indicates that the network device's LBT type is type one or 16us type two, at least part of the time gap from the end symbol position to the end edge of the first transmission time unit is filled by a terminal or network side device.

18. The method of claim 1, wherein the LBT type is: LBT type one, 16us LBT type two, or 25us LBT type two.

19. An indication method of an end symbol position, applied to network side equipment, is characterized by comprising the following steps:

and receiving uplink control information UCI sent by a terminal, wherein the UCI comprises indication information of the end symbol position of a first Physical Uplink Shared Channel (PUSCH) transmitted currently, and the indication information of the end symbol position is used for determining a Listen Before Talk (LBT) type of network side equipment.

20. The method of claim 19, wherein the indication information includes: and the number of the ending symbol of the first PUSCH or the number of symbols of the ending edge interval between the ending symbol of the first PUSCH and the transmission time unit where the first PUSCH is positioned.

21. The method of claim 20, wherein the UCI includes an end symbol indication field for indicating the indication information, and an LBT type indication field;

wherein different values of the LBT type indication field indicate different LBT types.

22. The method of claim 21, wherein the LBT type indicated by the value of the LBT type indication field is related to the value of the end symbol indication field.

23. The method according to claim 19, wherein the indication information is indicated by a first indication field in the UCI, and wherein the first indication field indicates the LBT type of the network side device in combination with a second indication field in the UCI in case that the network side device is allowed to share a transmission time unit after the PUSCH.

24. The method for indicating the end symbol position according to claim 21, 22 or 23, further comprising, after the uplink control information UCI transmitted by the receiving terminal:

and performing LBT according to the LBT type indicated in UCI.

25. The method for indicating the end symbol position according to claim 19, further comprising, after the uplink control information UCI transmitted by the receiving terminal:

And determining the LBT type according to the indication information of the ending symbol position.

26. Method for indicating an end symbol position according to claim 21 or 22 or 23 or 25, characterized in that in case the LBT type is type one or 16us type two, the network device fills at least part of the time gap from the end symbol position to the end edge of the transmission time unit where it is located.

27. The method for indicating the end symbol position according to claim 19, further comprising, before the uplink control information UCI transmitted by the receiving terminal:

transmitting a Radio Resource Control (RRC) signaling to the terminal;

the RRC signaling includes an end symbol position indication of a second PUSCH based on slot transmission, where the second PUSCH is a last PUSCH configured to authorize actual continuous transmission;

the end symbol position indication comprises: and the number of the ending symbol of the second PUSCH or the number of symbols of the interval between the ending symbol of the second PUSCH and the ending edge of the first transmission time unit where the second PUSCH is located.

28. The method of indicating an end symbol position of claim 27 wherein the determining the end symbol position of the second PUSCH in the first tti comprises:

If (13-X) mod m=0 or Y mod m=0 is satisfied when the number of symbols of the first transmission time unit where the PUSCH where the configuration grant is ready for transmission is equal, determining that the end symbol number of the second PUSCH is M-1, or that the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if (13-X) mod m=0 is not satisfied and Ymod m=0 is not satisfied, determining that the number of the ending symbol of the second PUSCH is equal to ((13-X) mod M) -1, or the number of symbols of the interval between the ending symbol of the second PUSCH and the ending edge of the first transmission time unit where the second PUSCH is located is equal to Y mod M;

wherein M is ceil (Y/M), M is the number of symbols of the first transmission time unit where the second PUSCH is located, X is the number of symbols of the second PUSCH based on the end symbol of the slot transmission, Y is the number of symbols of the second PUSCH based on the end symbol of the slot transmission and the interval between the end edges of the slot, and x+y=13, where ceil (Y/M) represents rounding up Y/M;

and the second PUSCH is an end symbol position of the m-last PUSCH of which the configuration authorization is ready for continuous transmission, and m is a positive integer.

29. The method of indicating an end symbol position of claim 27 wherein the determining the end symbol position of the second PUSCH in the first tti comprises:

In the case that the number of symbols of the first transmission time unit where the PUSCH is configured to be authorized for transmission is not equal, if the following conditions are satisfiedDetermining the ending symbol number M of the second PUSCH _m -1, or, the number of symbols between the end symbol of the second PUSCH and the end edge of the first transmission time unit where the second PUSCH is located is equal to 0; if it does not meetDetermining that the end symbol number of the second PUSCH is equal to ((13-X) mod M _m ) -1, or, the number of symbols between the end symbol of the second PUSCH and the end edge interval of the first transmission time unit in which the second PUSCH is located is equal to (Ymod M _m )；

Wherein M is _m For the number of symbols of the first transmission time unit where the second PUSCH is located, m is the first number of symbols satisfyingX is the number of end symbols of the second PUSCH based on slot transmission, Y is the number of symbols of the second PUSCH based on the end symbols of slot transmission and the interval between the end edges of slot, and x+y=13;

and the second PUSCH is an end symbol position of the m-last PUSCH of which the configuration authorization is ready for continuous transmission, and m is a positive integer.

30. A terminal, comprising:

a first sending module, configured to send uplink control information UCI, where the UCI includes indication information of an end symbol position of a first physical uplink shared channel PUSCH currently transmitted, where the indication information of the end symbol position is used to determine a listen before talk LBT type of a network side device.

31. A terminal, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor carries out the steps of the method of indicating an end symbol as claimed in any one of claims 1 to 18.

32. A network side device, comprising:

the first receiving module is configured to receive uplink control information UCI sent by a terminal, where the UCI includes indication information of an end symbol position of a first physical uplink shared channel PUSCH currently transmitted, and the indication information of the end symbol position is used to determine a listen before talk LBT type of a network side device.

33. A network side device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor carries out the steps of the method of indicating an end symbol as claimed in any one of claims 10 to 29.

34. A computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the steps of the method of indicating an end symbol according to any one of claims 1 to 29.