CN111836382B

CN111836382B - Indication method of end symbol position, terminal and network side equipment

Info

Publication number: CN111836382B
Application number: CN201910760960.0A
Authority: CN
Inventors: 李�灿; 沈晓冬
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2023-07-21
Anticipated expiration: 2039-08-16
Also published as: CN111836382A

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

Indication method of end symbol position, terminal and network side equipment

Technical Field

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

Background

In the fourth generation communication (4 generation,4 g), the UE with automatic uplink access (autonomous uplink access, AUL) transmits information on the resources configured in advance by the base station. The end symbol of PUSCH of the last subframe of the AUL transmission is configured by the base station through RRC to be 12 or 13. The UE may indicate an end symbol of 12 or 13 by 1 bit in the AUL-UCI. If the UE indicates that the base station can transmit PDCCH in subframe N, the UE can stop PUSCH transmission in advance in symbol 12 advanced by subframe N-1, and indicates an end symbol of 12 in AUL-UCI, thereby covering the RRC configuration of the end symbol of the last PUSCH.

AUL is also called Configured Grant (CG) UE in a 5G (5G) communication system. 5G, which includes 15khz,30khz,60khz, each symbol has a length of 71us,35us,17us, respectively. In this case, if the end symbol configuration of the 4G communication system is followed, the condition for LBT Cat 4 (LBT type four) is not satisfied for subcarriers of 30khz and 60 khz. Furthermore, in case that the base station can share the COT obtained by configuring the authorized CG terminal (configured grant UE), the CG UE makes the COT obtained by Cat 4 of listen before talk (listen before talk, abbreviated as LBT), if shared to the base station, the base station can make the LBT Cat 2 acquisition channel according to the method of the 4G communication system, but in the 5G communication system, the base station can also select to make the LBT Cat 1 (LBT type one).

Therefore, considering multiple subcarrier spacing configurations and multiple optional LBT types of the 5G communication system, the end symbol position needs to be flexibly indicated for different subcarrier spacing, so as to reasonably determine what LBT the base station uses for channel access.

Disclosure of Invention

The embodiment of the invention provides an indication method of an end symbol position, a terminal and network side equipment, which are used for solving the problems that the network side equipment in a 5G system can only perform LBT of a fixed type, cannot flexibly select the LBT type and cannot improve the channel access efficiency.

In order to solve the technical problems, the invention adopts the following scheme:

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

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.

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, and includes:

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.

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, and includes:

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.

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

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.

In a fifth aspect, an embodiment of the present invention provides a terminal, including: a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method of indicating the position of an end symbol described above.

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

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.

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

a second sending module, configured to send radio resource control RRC signaling to the terminal;

In an eighth aspect, an embodiment of the present invention provides a network side device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method of indicating the position of an end symbol described above.

In a ninth aspect, an embodiment of the present invention provides a computer readable storage medium, where the computer readable storage medium stores a computer program, where the computer program when executed by a processor implements the steps of the method for indicating an end symbol position described above.

The beneficial effects of the invention are as follows:

according to the scheme, the indication information for assisting the network side equipment to determine the end symbol position of the PUSCH of the LBT type is sent, so that the network side equipment can be ensured to select the proper LBT type, the channel access efficiency is improved, and the communication reliability is further ensured.

Drawings

FIG. 1 is a flow chart of a method for indicating the position of an end symbol according to an embodiment of the present invention;

FIG. 2 is a second flow chart of a method for indicating the position of an end symbol according to an embodiment of the invention;

FIG. 3 shows a schematic block diagram of a terminal according to an embodiment of the present invention;

fig. 4 is a block diagram showing the structure of a terminal according to an embodiment of the present invention;

fig. 5 shows one of the schematic block diagrams of the network side device according to the embodiment of the present invention;

fig. 6 is a block diagram of a network device according to an embodiment of the present invention;

FIG. 7 is a third flow chart of a method for indicating the position of an end symbol according to an embodiment of the invention;

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

Detailed Description

The present invention will be described in detail below with reference to the drawings and the specific embodiments thereof in order to make the objects, technical solutions and advantages of the present invention more apparent.

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

1. Channel idle detection

In a fifth generation communication (5 generation,5 g) communication system, before transmitting information in an unlicensed band, a terminal or a network device needs to perform channel idle estimation (Clear Channel Assess, CCA)/extended channel idle estimation (extended Clear Channel Assess, eCCA) to listen to a channel, i.e., perform Energy Detection (ED), on an unlicensed band of a New air interface (New Radio, NR) before transmitting information, and when Energy is below a certain threshold, the channel is determined to be empty, and a party can start transmission, i.e., listen before talk, LBT (listen before talk, LBT for short). This contention-based access approach leads to uncertainty in the time available for the channel, since the unlicensed band is shared by multiple technologies or multiple transmission nodes. The LBT types currently explicitly available for 5G unlicensed communication systems are three:

LBT type one-no CCA direct transmission is made, it is necessary that the transmission transition interval is less than 16us in case the channel has been acquired;

LBT type two, performing channel listening of 25us or 16us, available for a particular signal acquisition channel, the maximum continuous transmission length should be less than a certain value, e.g. 1ms;

And LBT type IV, namely channel interception of fusion random back-off is carried out, different priority parameters are set, and the maximum length which can be transmitted after the channel is finally obtained is also different. For LBT type four, when the priorities of uplink and downlink are the lowest, the time required to make one backoff is 7×9+16=79 us. That is, it is necessary to ensure that there is a minimum of 79us gap to make LBT type four.

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

A User Equipment UE (UE, also called a terminal) of an automatic uplink access (autonomous uplink access, AUL) transmits information on a resource configured in advance by a base station (network side device). AUL is also called Configured Grant (CG) UE in 5G communication systems.

The base station configures the end symbol of PUSCH of the last subframe of the AUL to be 12 or 13 through radio resource control RRC (Radio Resource Control, RRC). The UE transmits an AUL-UCI in subframe n, where a field "COT sharing indication" containing 1bit indicates whether the eNB can share the channel occupation 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 the 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 transmit PDSCH. The UE may indicate an end symbol of 12 or 13 by 1bit in the AUL-UCI. If the UE indicates that the base station can transmit PDCCH in subframe N, the UE can stop the transmission of PUSCH in advance in the symbol 12 advanced by subframe N-1, and indicates the end symbol as 12 in AUL-UCI, thereby covering the configuration of the RRC to the end symbol of the last PUSCH

3. Channel occupancy time COT (Channel Occupancy Time, COT) shared transmission for 5G unlicensed communication systems

The 5G unlicensed communication system agrees in the current standard discussion to support single and multiple downlink DL to uplink UL, UL to DL handoffs within the channel occupancy time (Channel Occupancy Time, COT) obtained by the base station, and the base station will ensure that the time interval for transmission transitions will not occur in an interval greater than 16us and less than 25us and meet the following LBT requirements, including:

LBT Cat 1 is performed for a time interval of transmission transitions less than 16 us.

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

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

For time intervals greater than 25us of transmission transitions, no agreement has been made at present, including the following discussion:

(1) The DL to UL handover is cat 2 LBT for only one handover point within the COT.

(2) There are multiple switch points within the COT, and whether the DL to UL switch is cat 2 LBT remains to be discussed.

4. Initial transmission offset configuration for 4G unlicensed communication system

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

The invention comprehensively considers a plurality of subcarrier interval configurations and a plurality of selectable LBT types of a 5G communication system, and aims at the problems that network side equipment in the 5G system can only perform fixed type LBT, cannot flexibly perform LBT type selection and cannot improve channel access efficiency, and provides an indication method of an ending symbol position, a terminal and the network side equipment.

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, transmitting uplink control information UCI;

it should be noted that, 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 the network side device, that is, the indication information of the end symbol position determines an LBT type that the network side device may do, or it may be understood that, according to the indicated information, the determination of the LBT type of the network side device may be performed by determining the LBT type independently or determining the LBT type jointly (that is, by jointly indicating with other fields).

Specifically, the first PUSCH is a PUSCH currently transmitted.

It should be noted that the types of LBT mentioned in the embodiments of the present invention are mainly: LBT type one, 16us LBT type two, or 25us LBT type two. Wherein, LBT type one refers to direct transmission without any CCA; 16us of LBT type indicates 16us of channel interception, and 25us of LBT type indicates 25us of channel interception.

In this embodiment, in one case, the indication information includes an end symbol number of the first PUSCH, that is, the indication information directly indicates an end symbol position of the current 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 position of the end symbol of the current transmission PUSCH, but indicates 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, and the network side device may determine, according to 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, to obtain the position of the end symbol of the current transmission PUSCH.

It should be noted that, for the ending symbol number of the PUSCH, when the number of symbols based on the slot transmission, that is, the number of symbols of the transmission time unit is 14 symbols, the value range of the ending symbol number may be a positive integer from 0 to 13, that is, from symbol 0 to symbol 13, for a total of 14 symbols; in the case of transmission based on the minislot, that is, when the number of symbols of the time unit is less than 14 symbols, the ending symbol number is a positive integer greater than or equal to 0 and less than 13, the value of the specific number is related to the number of symbols corresponding to the minislot, for example, the number of symbols of the minislot is 5, and then the value of the ending symbol number ranges from 0 to 4, that is, the method includes: symbol 0, symbol 1, symbol 2, symbol 3, and symbol 4, for a total of 5 symbols. 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 another configuration mode of the end symbol position is provided, where the number of symbols between the end symbol position and the end edge of the time unit where the PUSCH is located is indicated. For example, the number of symbols in the time unit is 14, and then another expression of ending symbol number 12 (symbol 12) corresponds to: and the number of symbols between the end symbol of the PUSCH and the end edge interval of the time unit where the PUSCH is positioned is 1 symbol.

It should be noted that, 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.

The first PUSCH is transmitted based on the transmission time unit. Then, the transmission time unit may include: the time slots and micro time slots, wherein one time slot comprises 14 symbols, and one micro time slot comprises less than 14 symbols. Thus, 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 corresponding time unit where the PUSCH is located, that is, when the transmission is based on the time slot and the transmission is based on the micro time slot, 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 noted 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 indication information may be indicated by an end symbol indication field in UCI, where the end symbol indication field may specifically include: an "encoding symbol" field. For example, the indication information may be indicated with a 1-bit "encoding symbol" field. In the embodiments of the present invention, the meaning of the bit values referred to are also applicable, and the values in the following embodiments are merely illustrative. Here the subcarrier spacing may include: 15khz,30khz,60khz.

Further, in two cases of sharing the next transmission time unit after the first PUSCH to the network side device and not sharing the next time unit after the first PUSCH to the network side device, the end symbol position indicated by the value of the end symbol indication field is different. Here, the next transmission time unit after the first PUSCH is shared for the network side device, so that time-frequency resources can be saved, and the probability of successful channel access of the network side device can be increased.

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

It will be appreciated that, for example, when the bit of the "coding symbol" field is "0", it may indicate that the subcarrier spacing of 30khz is symbol 12, and also may indicate that the subcarrier spacing of 60khz is symbol 13. Further, when the bit of the "encoding symbol" field is "0", it may indicate that: the subcarrier spacings of 15khz,30khz,60khz are respectively different end symbol positions and may also indicate: the subcarrier spacings of 15khz,30khz,60khz are respectively the same end symbol positions.

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

Further, 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, at least part of the time gap is filled by the terminal or the network device, 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, the time requirement for switching between uplink and downlink can be met in case of LBT type one and 16us LBT type two.

It should be noted that if the network side device autonomously decides the LBT type, the time gap is filled by the network side device, and the filling gap may include, but is not limited to, replication of CP.

For easy understanding, the following description is given below for the case where the transmission time unit is a slot and the end symbol field is an "encoding symbol" field, by referring to subcarrier intervals of 15khz,30khz,60 khz:

Case A1: UE indicates that the transmission time unit after the current PUSCH is not shared to the network equipment

Indication mode 1:

as shown in table 1 below, in time slot based transmission, PUSCH transmission may be ended at symbol 13 for the current subcarrier spacing with an "coding symbol" bit of '0'. The "coding symbol" bit of '1' represents that the PUSCH transmission ends at symbol 12, symbol 11, symbol 9 for 15khz,30khz,60khz, respectively. That is, the light source is configured to,

when the "encoding symbol" bit is "0":

under the condition that the subcarrier interval is 15KHz, determining the ending symbol of the last PUSCH as thirteen symbols; under the condition that the subcarrier interval is 30KHz, determining the ending symbol of the last PUSCH as thirteen symbols; under the condition that the subcarrier interval is 60KHz, determining the ending symbol of the last PUSCH as thirteen symbols;

when the "encoding symbol" bit is "1":

under the condition that the subcarrier interval is 15KHz, determining the ending symbol of the last PUSCH as a symbol twelve; under the condition that the subcarrier interval is 30KHz, determining the ending symbol of the last PUSCH as a symbol eleven; and under the condition that the subcarrier interval is 60KHz, determining the ending symbol of the last PUSCH as a 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 transmitting on a slot basis, the "sounding symbol" bit may also be represented as "0" for the current subcarrier spacing by 0 symbols prior to the PUSCH ending transmission. The "coding symbol" bit of "1" represents that for 15khz,30khz,60khz, respectively, 1 symbol is null, 2 symbols are null, and 4 symbols are null before the PUSCH ends transmission. That is, the light source is configured to,

when the "encoding symbol" bit is "0":

under the condition that the subcarrier interval is 15KHz, determining the ending symbol of the last PUSCH as zero symbol which is different from the last symbol phase of the time slot for transmitting the PUSCH;

under the condition that the subcarrier interval is 30KHz, determining the ending symbol of the last PUSCH as zero symbol which is different from the last symbol phase of the time slot for transmitting the PUSCH;

and under the condition that the subcarrier interval is 60KHz, determining the ending symbol of the last PUSCH as zero symbol different from the last symbol of the time slot for transmitting the PUSCH.

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

under the condition that the subcarrier interval is 15KHz, determining the ending symbol of the last PUSCH as a symbol which is different from the last symbol of the time slot for transmitting the PUSCH;

Under the condition that the subcarrier interval is 30KHz, determining that the ending symbol of the last PUSCH is two symbols different from the last symbol of the time slot for transmitting the PUSCH;

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

TABLE 2

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

For indication 1, the following examples are given for ease of understanding:

if the subcarrier spacing is 30Khz and the coding symbol "bit is" 1", it indicates that the end symbol of the current PUSCH corresponds to symbol 11 in table 1, or 2 symbols in table 2, that is, it indicates that the current PUSCH ends transmission at symbol 11, or it indicates that the current PUSCH ends transmission 2 symbols from the current slot end boundary.

If the subcarrier spacing is 60Khz and the coding symbol "bit is" 1", the end symbol indicating the current PUSCH corresponds to symbol 9 in table 1, or 4 symbols in table 2, that is, indicates that the current PUSCH ends transmission at symbol 9, or indicates that the current PUSCH ends transmission 4 symbols from the current slot end boundary.

Indication mode 2:

as shown in table 3 below, in time slot based transmission, PUSCH transmission may be ended at symbol 13 for the current subcarrier spacing with an "coding symbol" bit of '0'. That is, the light source is configured to,

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

TABLE 3 Table 3

Or alternatively

As shown in table 4 below, when transmitting on a slot basis, the "sounding symbol" bit may also be represented as "0" for the current subcarrier spacing by 0 symbols prior to the PUSCH ending transmission. That is, the light source is configured to,

when the "encoding symbol" bit is "0":

TABLE 4 Table 4

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

Case A2: UE indicates that the transmission time unit after the current PUSCH is shared to the network equipment

Indication mode 1:

as shown in table 5 below, in time slot based transmission, PUSCH transmission may be ended at symbol 12 for the current subcarrier spacing with an "coding symbol" bit of '0'. The "coding symbol" bit of '1' represents that the PUSCH transmission ends for 15khz,30khz,60khz at symbol 12, symbol 11, respectively. That is, the light source is configured to,

when the "encoding symbol" bit is "0":

under the condition that the subcarrier interval is 15KHz, determining the ending symbol of the last PUSCH as a symbol twelve;

under the condition that the subcarrier interval is 30KHz, determining the ending symbol of the last PUSCH as a symbol twelve;

under the condition that the subcarrier interval is 60KHz, determining the ending symbol of the last PUSCH as a symbol twelve;

when the "encoding symbol" bit is "1":

under the condition that the subcarrier interval is 15KHz, determining the ending symbol of the last PUSCH as a symbol twelve; under the condition that the subcarrier interval is 30KHz, determining the ending symbol of the last PUSCH as a symbol twelve; in the case of a subcarrier spacing of 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 alternatively

As shown in table 6 below, when transmitting on a slot basis, the "sounding symbol" bit may also be represented as "0" for the current subcarrier spacing by 1 symbol prior to the PUSCH ending transmission. The "coding symbol" bit of "1" represents 1 symbol blank, 2 symbol blank for 15khz,30khz,60khz, respectively, before the PUSCH ends transmission. That is, the light source is configured to,

when the "encoding symbol" bit is "0":

under the condition that the subcarrier interval is 30KHz, determining the ending symbol of the last PUSCH as a symbol which is different from the last symbol of the time slot for transmitting the PUSCH;

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

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

In the case of a subcarrier spacing of 60KHz, the end symbol of the last PUSCH is determined to be two symbols different from the last symbol of the 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 manner 1 in the above case A2, the LBT type performed by the network side device may be indicated by using the 1-bit field "LBT type" carried in UCI, which may specifically include:

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

when the LBT type is 0, indicating LBT type I made by the network side equipment;

when "LBT type" is "1", LBT type two with 16us LBT type is indicated by the network side device.

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

when "LBT type" is "1", LBT type two with 25us LBT type is indicated by the network side device.

Indication mode 2:

as shown in table 7 below, at time slot based transmission, the sub-carrier intervals 15khz,30khz,60khz may be represented by an "coding symbol" bit of '0' ending PUSCH transmission at symbol 12, symbol 11, symbol 9, respectively. That is, the light source is configured to,

when the "encoding symbol" bit is "0":

under the condition that the subcarrier interval is 30KHz, determining the ending symbol of the last PUSCH as a symbol eleven;

under the condition that the subcarrier interval is 60KHz, determining the ending symbol of the last PUSCH as a symbol nine;

TABLE 7

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

Or alternatively

As shown in table 8 below, when transmitting on a slot basis, the "coding symbol" bit "0" may also represent the subcarrier spacing 15khz,30khz,60khz respectively with 1 symbol, 2 symbols, 4 symbols before the PUSCH ends transmission. That is, the light source is configured to,

when the "encoding symbol" bit is "0":

TABLE 8

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

Further, it should be noted that, in the indication manner 2 in the above case A2, the LBT type made by the network side device may be indicated by using the 2-bit field "LBT type" carried in UCI, and optionally, the indication manner may include:

when the LBT type is '00', indicating that the LBT type made by the network side equipment is the LBT type II of 16 us;

when the LBT type is '01', indicating that the LBT type made by the network side equipment is the LBT type II of 25 us;

and when the LBT type is 10, indicating the LBT type I of the network side equipment.

It should be noted that, based on the above exemplary embodiment, when the transmission time unit is a minislot, the method for calculating the end symbol position may specifically include one of the following:

m11, in the case that X is less than or equal to 13 and M > (13-X), the ending 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.

M12, 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.

In this embodiment, the end symbol position of the micro-slot based transmission in the UCI is converted by the method in this embodiment from the slot based end symbol position in the UCI. 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 that is the interval between the end symbol of the current PUSCH based on the slot transmission and the end edge of the slot is 1 (the end symbol number X of the current PUSCH based on the slot transmission is 12), if M is greater than Y or M is greater than (13-X), then the end symbol number of the current PUSCH based on the micro slot is M-Y-1=7-1-1=5.

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

Note that, the first indication field may include: an "endinpusch" field. Here, the indication information may be indicated using a 1-bit field "endinpusch".

Further, in the case that 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 configuration grant actually transmits continuously. Optionally, in the case that the first PUSCH is not the last PUSCH for which configuration grant actually continuously transmits, 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 that the first PUSCH is the last PUSCH configured to grant actual continuous transmission, 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 of the tti is 14, that is, the tti is a slot, the last symbol is symbol 13, or the number of symbols spaced from the end edge of the tti where the last PUSCH is located is a symbol 0.

It should be further noted that, in the case that the network side device is allowed to share the next transmission time unit after the first PUSCH, the first indication field indicates, in combination with the second indication field in the UCI, an 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 description is made with respect to the case B1 and the case B2 in which the indication information is indicated by the first indication field (may be the "indication pusch" field):

case B1: UE indicates that the transmission time unit after the current PUSCH is not shared to the network equipment

As shown in table 9 below, in time slot based transmissions, the current PUSCH transmission may not be the last PUSCH, represented by an "endinpusch" bit of '0'. Then the default sub-carrier intervals 15khz,30khz,60khz all end transmission at symbol 13; an "endinpusch" bit of '1' represents that the end symbol is indicated by default according to the configuration of RRC signaling for 15khz,30khz,60 khz. That is, the light source is configured to,

when the "endinpusch" bit is "0":

when the "endinpusch" bit is '1': the configuration of the RRC signaling includes:

under the condition that the subcarrier interval is 15KHz, determining that the ending symbol of the last PUSCH is a symbol twelve or a symbol thirteen;

under the condition that the subcarrier interval is 30KHz, determining that the ending symbol of the last PUSCH is a symbol eleven or a symbol thirteen;

under the condition that the subcarrier interval is 60KHz, determining that the ending symbol of the last PUSCH is a symbol nine or a symbol thirteen;

TABLE 9

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

Or alternatively

As shown in table 10 below, when transmitting on a slot basis, it is also possible to use an "endinpusch" bit of "0" to represent that the current PUSCH transmission is all 0 symbols before ending the transmission. An "endinpusch" bit of "1" represents that the sub-carrier interval 15khz,30khz,60khz is null by 0 or 1 symbol, null by 0 or 2 symbols, null by 0 or 4 symbols, respectively, before the PUSCH ends transmission. That is, the light source is configured to,

when the "endinpusch" bit is "0":

under the condition that the subcarrier interval is 15KHz, determining that the ending symbol of the last PUSCH is zero symbol or one symbol different from the last symbol of the time slot for transmitting the PUSCH;

under the condition that the subcarrier interval is 30KHz, determining that the ending symbol of the last PUSCH is zero symbol or two symbols different from the last symbol of the time slot for transmitting the PUSCH;

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

Table 10

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

Case B2: UE indicates that the transmission time unit after the current PUSCH is shared to the network equipment

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

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

in the case of a subcarrier spacing of 60KHz, 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 alternatively

As shown in table 11 below, the default sub-carrier intervals 15khz,30khz,60khz are respectively null for 1 symbol, and null for 2 symbols before the PUSCH ends transmission. That is, the light source is configured to,

when the "endinpusch" bit is "0" and the "endinpusch" bit is "1":

TABLE 11

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

It should be noted that, in the case where the time slot after the current PUSCH may start to be shared to the network side device, the field "endinpusch" may be used to combine the field "LBT type" to indicate the LBT type that the network side device may do, which may specifically include:

"endinpusch" is "0" means that the network side device is instructed to make LBT Cat 1, and "endinpusch" is "1" means that the network side device is instructed to make LBT Cat 2.

When "endinpusch" indicates to make Cat 2, a field "LBT type" carried in UCI is further used to indicate which subtype of LBT type two is specifically adopted, where "LBT type" is "0" indicating that the network side device makes LBT type two of 16us, and "LBT type" is "1" indicating that the network side device makes LBT type two of 25 us.

It should be further noted that, before transmitting UCI, the method further includes:

receiving Radio Resource Control (RRC) signaling;

The following describes the configuration of the end symbol position of the last PUSCH when RRC signaling is transmitted based on a slot, in combination with table 12 and table 13:

two integers, such as integer 0 and integer 1, may be utilized in RRC signaling as identification numbers to indicate the end symbols corresponding to different subcarrier spacings. Wherein,,

as an implementation manner, the end symbol of the configuration of RRC signaling may be configured in the manner of symbol X, and specifically for different subcarrier intervals may be as shown in table 12 below:

table 12

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

Where 0 represents the subcarrier spacing different for 15khz, 30khz, 60khz, respectively, represents the end of PUSCH transmission at symbol 12, symbol 11, symbol 9. 1 represents that the different subcarrier spacings for 15khz, 30khz, 60khz all end PUSCH transmission at symbol 13.

It can be seen that, in time slot based transmission, the configuration of the RRC signaling includes one of the following:

As another implementation, the RRC configured end symbol may be configured in a manner of being empty by Y symbols before PUSCH ends transmission, and specifically for different subcarrier intervals may be as shown in table 13 below:

TABLE 13

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

Where 0 represents 1 symbol, 2 symbols, 3 symbols preceding the PUSCH end transmission, respectively, for different subcarrier spacings of 15khz, 30khz, 60 khz. 1 represents that the PUSCH transmission is ended with 0 symbols blank before the PUSCH transmission is ended for different subcarrier spacings of 15khz, 30khz, 60 khz.

It should be noted that the end symbol position at the last PUSCH configured through RRC signaling is: and 1 symbol, 2 symbols and 3 symbols are left before the PUSCH finishes transmission, or the PUSCH finishes transmission at the symbol 12, the symbol 11 and the symbol 9 respectively, so that the channel access meeting the requirements of different subcarrier intervals of 15khz, 30khz and 60khz can be realized, wherein the LBT type IV is channel interception for fusion random back-off.

It will be appreciated that in slot-based transmissions, each slot includes 14 symbols, with 14 symbols including symbol 0, symbol 1, symbol 2, symbol 3, symbol 4, …, symbol 12, symbol 13. It follows that symbol 13 corresponds to the last symbol of the slot. Further, it is understood that x+y=13.

It should be noted that Y symbols are left before the PUSCH ends 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 the receiving RRC signaling, the method further includes:

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.

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

a11, if the number of symbols of the first transmission time unit where the PUSCH which is authorized to prepare for transmission is configured is equal, if (13-X) mod M=0 or Y mod M=0 is satisfied, determining that the number of the ending symbol of the second PUSCH is M-1, or that 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 0; if (13-X) mod m=0 is not satisfied and Y mod 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.

A12, if the number of symbols of the first transmission time unit where the PUSCH authorized to be transmitted is configured is not equal, thenDetermining 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 (Y mod M _m )；

M is the same as that of the prior art _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.

In this embodiment, it should be noted that the number of symbols of the first tti where the second PUSCH is located includes two cases of equal and unequal, that is, the length of the minislot is divided into two cases of fixed number of symbols and non-fixed number of symbols. Wherein, the symbol length of the micro-slot is not fixed, which means that the symbol length of the micro-slot where each PUSCH is located is not the same. Further, when the last PUSCH is transmitted based on the micro time slot, the configuration of the ending symbol position of the last PUSCH by the RRC signaling can be converted by the above formula based on the configuration of the ending symbol position of the last PUSCH by the RRC during the 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 of the interval between the end symbol of the current PUSCH based on the slot transmission and the end edge of the slot is 4 (the end symbol number X of the current PUSCH based on the slot transmission is 9), the (13-X) mod m=0 or the Y mod m=0 is satisfied, then the end symbol number of the second PUSCH is determined to be 3, or the number of symbols of the interval 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 determined to be equal to 0.

For a clearer understanding of the above-described indication method of the end symbol position, examples are provided below for illustration:

example 1: based on the time slot transmission, if the RRC signaling indicates that the number of symbols between the end symbol of the last PUSCH transmitted in the 30Khz subcarrier interval and the end edge interval of the transmission time unit in which the PUSCH is located is 2 by using an integer of "1". For the indication in UCI, the UE does not share the next transmission time unit after the current transmission PUSCH to the base station, UCI indicates '0' in non-last PUSCH, indicates '1' in last PUSCH, and ends transmission at symbol 11 in last PUSCH.

Example 2: based on the slot transmission case, if RRC signaling indicates that the end symbol number of the last PUSCH transmitted at 60Khz subcarrier spacing is 9 with an integer of "0". For the indication in UCI, if the first indication field endinpusch indicates '0', and the terminal indicates that the slot after the current PUSCH can start to be shared to the base station, it is certain that the default end symbol of the last PUSCH is 11 at present, and the representation is that the base station makes LBT type one, and the base station makes the gap not greater than 16us through CP filling and makes channel access of LBT type one.

Example 3: based on the case of micro-slot transmission, the subcarrier spacing is 60khz, and rrc signaling is an integer of "0", indicating that the end symbol number of the last PUSCH is 9. Thus for PUSCH transmitted on a minislot basis of 7 symbols in length, the end symbol of the last PUSCH is 2. If the terminal indicates that the micro-slots after the current PUSCH can start to be shared to the base station, the end symbol number of the PUSCH representing the micro-slot with 7 symbols length is 7-1-1=5 by the encoding symbol field in UCI being '0', and the LBT type field being '0' indicates that the base station performs channel access with LBT type one.

According to the scheme, the end symbol position of the transmission PUSCH is flexibly indicated for different subcarrier intervals, and further, the indicated end symbol position can be used for reasonably determining what LBT is used for channel access by the base station, so that the resource utilization rate is improved.

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, and includes:

step 201, receiving 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, where 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: 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.

Further, 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.

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

Further, after the uplink control information UCI sent by the receiving terminal, the method further includes:

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

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

In particular, 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 located transmission time unit.

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

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

Specifically, the determining manner of the ending symbol position of the second PUSCH in the first transmission time unit includes:

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 Y mod 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.

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 (Y mod 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;

It should be noted that, in the above embodiments, all descriptions about the network side device are applicable to the embodiment of the indication method applied to the end symbol position of the terminal, and the same technical effects can be achieved.

As shown in fig. 3, an embodiment of the present invention provides a terminal 300, including

A first sending module 301, 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.

Specifically, 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.

Specifically, 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.

Optionally, in the case that X is less than or equal to 13 and M > (13-X), an end symbol number of the first PUSCH in the first transmission time unit is equal to M-14+x;

or,

Optionally, 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,

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

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

Optionally, 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 the last PUSCH for configuring grant actual continuous transmission in a case that the network side device is not allowed to share the next transmission time unit after the first PUSCH.

Optionally, in the case that the first PUSCH is not the last PUSCH for which configuration grant actually continuously transmits, 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.

Further, before transmitting UCI, the method further includes:

a second receiving module, configured to receive radio resource control RRC signaling;

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

a first determining module, configured to determine, according to the end symbol position indication, an end symbol position of a second PUSCH in a first transmission time unit, where the second PUSCH is an end symbol position of a mtn PUSCH for which configuration grants preparation for continuous transmission;

wherein m is a positive integer.

Further, the first determining module is configured to:

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.

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

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

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

In particular, in case 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 network side device from the end symbol position to the end edge of the located first transmission time unit.

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

It should be noted that, in this embodiment of the terminal, the terminal corresponds to the above-mentioned indication method applied to the terminal for indicating the end symbol position, and all implementation manners of the above-mentioned embodiment are applicable to this embodiment of the terminal, and the same technical effects as those of the above-mentioned embodiment can be achieved.

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

The terminal 400 includes, but is not limited to: radio frequency unit 410, network module 420, audio output unit 430, input unit 440, sensor 450, display unit 460, user input unit 470, interface unit 480, memory 490, processor 411, and power source 412. Those skilled in the art will appreciate that the terminal structure shown in fig. 4 is not limiting of the terminal and that the terminal may include more or fewer components than shown, or may combine certain components, or a different arrangement of components. In the embodiment of the invention, the terminal comprises, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer and the like.

The radio frequency unit 410 is 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, and the indication information of the end symbol position is used to determine a listen before talk LBT type of a network side device.

The terminal of the embodiment of the invention can ensure that the network side equipment can select a proper LBT type by sending the indication information for assisting the network side equipment to determine the end symbol position of the PUSCH of the LBT type so as to improve the channel access efficiency and further ensure the communication reliability.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 410 may be configured to receive and send information or signals during a call, specifically, receive downlink data from a network side device, and then process the received downlink data with the processor 411; in addition, the uplink data is sent to the network side equipment. In general, 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, and the like. In addition, the radio frequency unit 410 may also communicate with networks and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user through the network module 420, such as helping the user to send and receive e-mail, browse web pages, access streaming media, etc.

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

The input unit 440 is used to receive an audio or video signal. The input unit 440 may include a graphics processor (Graphics Processing Unit, GPU) 441 and a microphone 442, the graphics processor 441 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frame may be displayed on the display unit 460. The image frames processed by the graphics processor 441 may be stored in the memory 490 (or other storage medium) or transmitted via the radio frequency unit 410 or the network module 420. The microphone 442 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output that can be transmitted to the mobile communication network side device via the radio frequency unit 410 in the case of a phone 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 ambient light, and the proximity sensor can turn off the display panel 461 and/or the backlight when the terminal 400 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when the accelerometer sensor is stationary, and can be used for recognizing the terminal gesture (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; the sensor 450 may further 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 are not described herein.

The display unit 460 is used to display information input by a user or information provided to the user. The display unit 460 may include a display panel 461, and the display panel 461 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 470 may be used to receive input numeric or character information and to generate key signal inputs related to 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 referred to as a touch screen, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on the touch panel 471 or thereabout using any suitable object or accessory such as a finger, stylus, etc.). The touch panel 471 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch azimuth of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 411, and receives and executes commands sent by the processor 411. In addition, the touch panel 471 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 470 may include other input devices 472 in addition to the touch panel 471. In particular, other input devices 472 may include, but are not limited to, physical keyboards, function keys (e.g., volume control keys, switch keys, etc.), trackballs, mice, joysticks, and so forth, which are not described in detail herein.

Further, the touch panel 471 may be overlaid on the display panel 461, and when the touch panel 471 detects a touch operation thereon or thereabout, the touch panel 471 is transmitted to the processor 411 to determine the type of touch event, and then the processor 411 provides a corresponding visual output on the display panel 461 according to the type of touch event. Although in fig. 4, the touch panel 471 and the display panel 461 are provided as two separate components to implement the input and output functions of the terminal, in some embodiments, the touch panel 471 may be integrated with the display panel 461 to implement the input and output functions of the terminal, which is not limited herein.

The interface unit 480 is an interface to which an external device is connected to the terminal 400. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. 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 within the terminal 400 or may be used to transmit data between the terminal 400 and an external device.

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

The processor 411 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs 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, thereby performing overall monitoring of the terminal. 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 primarily handles operating systems, user interfaces, application programs, etc., and the modem processor primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 411.

The terminal 400 may further include a power source 412 (e.g., a battery) for powering the various components, and preferably the power source 412 may be logically coupled to the processor 411 via a power management system, such as to provide for managing charging, discharging, and power consumption.

In addition, the terminal 400 includes some functional modules, which are not shown, and will not be described herein.

Preferably, the embodiment of the present invention further provides a terminal, which includes a processor 411, a memory 490, and a computer program stored in the memory 490 and capable of running on the processor 411, where the computer program when executed by the processor 411 implements each procedure of the embodiment of the indication method applied to the end symbol position on the terminal side, and can achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements each process of the indication method of the end symbol position applied to the embodiment of the terminal, and can achieve the same technical effect, and in order to avoid repetition, the description is omitted here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

As shown in fig. 5, an embodiment of the present invention further provides a network side device 500, including:

a first receiving module 501, 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, where 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 UCI includes an end symbol indication field for indicating the indication information, and an LBT type indication field;

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

And the execution module is used for carrying out 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:

and the second determining module is used for determining the LBT type according to the indication information of the ending symbol position.

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

a third sending module, configured to send a radio resource control RRC signaling to the terminal;

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

The embodiment of the invention also provides a network side device, which comprises: the computer program is executed by the processor to implement each process in the embodiment of the method for indicating the end symbol position of the network side device, and can achieve the same technical effect, so that repetition is avoided and redundant description is omitted.

The embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and when the computer program is executed by a processor, the computer program realizes each process in the embodiment of the indication method applied to the end symbol position of the network side device, and can achieve the same technical effect, so that repetition is avoided and redundant description is omitted. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

Fig. 6 is a block diagram of a network side device according to an embodiment of the present invention, which can implement details of the above-described indication method of the end symbol position, and achieve the same effect. As shown in fig. 6, the network-side device 600 includes: processor 601, transceiver 602, memory 603 and bus interface, wherein:

a processor 601 for reading the program in the memory 603, performing the following procedures:

the transceiver 602 receives uplink control information UCI sent by the terminal, 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 the network side device.

In fig. 6, a bus architecture may comprise any number of interconnected buses and bridges, with various circuits of the one or more processors, represented in particular by processor 601, and the memory, represented in memory 603. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 602 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium.

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

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

Optionally, 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 located transmission time unit.

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

transmitting radio resource control, RRC, signaling to the terminal through the transceiver 602;

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 end symbol of the second PUSCH is combined with the first transmission time unit in which the second PUSCH is locatedThe number of symbols of the bundle edge interval is equal to (Y mod M _m )；

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

Optionally, the determining manner of the ending symbol position of the second PUSCH in the first transmission time unit includes:

As shown in fig. 8, an embodiment of the present invention further provides a network side device, including:

a third sending module 801, configured to send radio resource control RRC signaling to a terminal;

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 (Y mod M _m )；/>

It should be further noted that the embodiment of the present invention further provides a network side device, where 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 configured to read the program in the memory, and execute the following procedure:

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

The network side device may be a base station (Base Transceiver Station, BTS) in global mobile communication (Global System of Mobile communication, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a base station (NodeB, NB) in wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, a relay station or an access point, or a base station in a future 5G network, etc., which are not limited herein.

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the principles of the present invention, and such modifications and changes are intended to be within the scope of the present invention.

Claims

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

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,

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,

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;

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

receiving Radio Resource Control (RRC) signaling;

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

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;

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 )；

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;

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:

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;

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:

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;

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:

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:

30. A terminal, comprising:

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:

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.