CN110971374B

CN110971374B - Configuration method, transmission method and device for uplink physical channel transmission time

Info

Publication number: CN110971374B
Application number: CN201811153493.7A
Authority: CN
Inventors: 沈兴亚
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2018-09-29
Filing date: 2018-09-29
Publication date: 2022-05-31
Anticipated expiration: 2038-09-29
Also published as: CN110971374A

Abstract

A configuration method, a transmission method and a device for uplink physical channel transmission time are provided, wherein the transmission method comprises the following steps: receiving configuration information of a physical channel transmission time, wherein the configuration information comprises: a first timing adjustment coefficient set including at least one first timing adjustment coefficient adapted to adjust a transmission time of the PRACH preamble, the at least one first timing adjustment coefficient being a plurality of different natural numbers; determining a first transmission time of the PRACH preamble according to the first timing adjustment coefficient; monitoring before transmitting before the first transmission moment; and if the monitoring result is that the channel is idle, transmitting the PRACH lead code at the corresponding time domain position. The embodiment of the invention reduces the probability that the terminal monitors other terminals to transmit the PUCCH or the PUSCH during LBT by advancing the transmission time of the PRACH lead code, thereby improving the success rate of the terminal for transmitting the PRACH lead code.

Description

Configuration method, transmission method and device for transmission time of uplink physical channel

Technical Field

The present invention relates to the field of mobile communications, and in particular, to a method for configuring a transmission time of an uplink physical channel, a transmission method, and an apparatus thereof.

Background

In a New Radio (NR) of 5G, an uplink subframe i for uplink transmission is T before a reference downlink subframe i, as viewed from a terminal side_TAThe moment occurs. And the reference downlink subframe i is the time when the terminal side receives the downlink subframe i.

Meanwhile, in the NR unlicensed spectrum system, different terminals compete to obtain shared spectrum resources. Listen Before Talk (LBT) is a technique for avoiding channel access collisions. When the terminal performs LBT in units of 20MHz bandwidth, when it detects that the energy in the 20MHz bandwidth is higher than a threshold in a Clear Channel Assessment (CCA) period, the Channel is considered occupied.

In the prior art, when a terminal transmits a Physical Random Access Channel (PRACH) preamble resource in a slot (slot), the current slot is also scheduled with other terminals physicallyPhysical Uplink Control Channel (PUCCH) or Physical Uplink Shared Channel (PUSCH), transmission of the PUCCH or PUSCH occurs before a reference downlink subframe i (N_TA+N_{TA offset})*T_cTime of day, said N_TAAdjusting the coefficient for the timing; the transmission of the PRACH preamble occurs at N before a reference downlink subframe i_{TA offset}*T_cTime of day, said N_TAThe coefficients are adjusted for timing. If N is present_TAIs larger than the transmission advance of the PUCCH or PUSCH relative to the PRACH preamble is larger than the length of time used for measuring whether a channel is occupied in one CCA, for example, 4 μ s. Considering the impact of LBT mechanism, the PRACH preamble may be blocked by PUCCH/PUSCH transmitted in the same slot. Therefore, the PRACH preamble transmission priority will be lower than PUCCH/PUSCH transmission, resulting in a lower transmission success rate.

Therefore, a method for improving the transmission success rate of the PRACH preamble is needed.

Disclosure of Invention

The embodiment of the invention provides a method for configuring uplink physical channel transmission time, which comprises the following steps: generating configuration information of the transmission time of the uplink physical channel; the configuration information includes: a first timing adjustment coefficient set, including at least one first timing adjustment coefficient, adapted to adjust a transmission time of a PRACH preamble, where the at least one first timing adjustment coefficient is a plurality of different natural numbers; and transmitting the configuration information to the terminal.

Optionally, the configuration information further includes: a second timing adjustment coefficient adapted to adjust transmission time of the PUSCH and PUCCH; the second timing adjustment coefficient is an integer, and the sum of the first timing adjustment coefficient and the second timing adjustment coefficient is a natural number.

Optionally, a time domain length corresponding to the first timing adjustment coefficient is smaller than a format length of the PRACH.

Optionally, the first timing adjustment coefficient set is broadcast through a System Information Block (SIB).

Optionally, the first set of timing adjustment coefficients is transmitted to the terminal through Radio Resource Control (RRC) signaling.

Optionally, the first timing adjustment coefficient set is transmitted to the terminal through Downlink Control Information (DCI).

Optionally, when the number of the terminals is multiple, the transmitting the configuration information to the terminals includes: grouping a plurality of terminals; and configuring the same first timing adjustment coefficient set for the terminals in the same group, and configuring different first timing adjustment coefficient sets for different groups.

The embodiment of the invention provides a transmission method of an uplink physical channel, which comprises the following steps: receiving configuration information of a physical channel transmission time, wherein the configuration information comprises: a first timing adjustment coefficient set including at least one first timing adjustment coefficient adapted to adjust a transmission time of the PRACH preamble, the at least one first timing adjustment coefficient being a plurality of different natural numbers; determining a first transmission time of the PRACH preamble according to the first timing adjustment coefficient; monitoring before transmitting before the first transmission moment; and if the monitoring result is that the channel is idle, transmitting the PRACH preamble at the corresponding time domain position.

Optionally, the determining, according to the configuration information, a first transmission time of the PRACH preamble includes: selecting a first timing adjustment coefficient from the first timing adjustment coefficient set; and according to (N)_{TA i}+N_{TA offset})*T_cDetermining a first transmission time of a PRACH preamble, wherein N_{TA i}Is a first timing adjustment coefficient, N_{TA offset}For timing adjustment of the coefficient offset, T_cAre time domain units.

Optionally, the transmission method further includes: if the monitoring result is that the channel is busy, another larger first timing adjustment coefficient is continuously selected from the first timing adjustment coefficient set before the next transmission so as to adjust the transmission time of the PRACH preamble and form a second transmission time of the PRACH preamble; monitoring before sending is carried out before the second transmission moment; and if the monitoring result is that the channel is busy, repeating the steps until the channel is monitored to be idle, or selecting all the first timing adjustment coefficients in the first timing adjustment coefficient set.

Optionally, the configuration information further includes: a second timing adjustment coefficient, adapted to adjust transmission time of a PUSCH and a PUCCH, where the second timing adjustment coefficient is an integer, and a sum of the first timing adjustment coefficient and the second timing adjustment coefficient is a natural number; the transmission method further comprises: updating the local timing adjustment coefficient according to the received second timing adjustment coefficient and a first timing adjustment coefficient selected for the previous PRACH preamble transmission, wherein N is_TA＝N_{TA NEW}+N_{TA i}(ii) a According to (N)_TA+N_{TA offset})*T_cDetermining the transmission time of PUSCH or PUCCH; and transmitting the PUSCH or PUCCH at the corresponding time domain position; wherein, the N is_TAFor the local timing adjustment factor, N_{TA NEW}Adjusting the coefficient for the second timing.

The embodiment of the invention provides a method for configuring uplink physical channel transmission time, which comprises the following steps: generating configuration information of the transmission time of the uplink physical channel; the configuration information includes: the PRACH lead code transmission information is suitable for indicating the transmission time domain resources of the PRACH lead code of the terminal in the cell; omission information, when a PUSCH or PUCCH is transmitted, if the PUSCH or PUCCH overlaps with a transmission time domain resource of a PRACH preamble of the other terminal, and the PUSCH or PUCCH is located on at least one symbol of first Y symbols of one slot, adapted to indicate that transmission of the PUSCH or PUCCH is omitted, where X, Y is a natural number; and transmitting the configuration information to the terminal.

Optionally, the PRACH preamble transmission information is indicated by RRC signaling.

Optionally, the value of X or Y is broadcast through SIB information.

Optionally, the value of X or Y is indicated by RRC signaling.

Optionally, the value of X or Y is dynamically indicated by DCI or a Media Access Control Element (MAC CE).

The embodiment of the invention also provides a transmission method of the uplink physical channel, which comprises the following steps: receiving PRACH preamble transmission information, wherein the PRACH preamble transmission information is suitable for indicating transmission time domain resources of PRACH preambles of terminals in a cell; receiving omission information, wherein when a PUSCH or PUCCH is transmitted, if the omission information is overlapped with transmission time domain resources of a PRACH preamble of the other terminal, the omission information is suitable for indicating that the first X symbols of the PUSCH or PUCCH are omitted from being transmitted, and X is a natural number; judging whether the transmission time domain resource of the PUSCH or PUCCH is overlapped with the transmission time domain resource indicated by the PRACH preamble transmission information; judging whether the transmission time domain resource of the PUSCH or PUCCH is positioned on at least one symbol in the first Y symbols of a time slot; and if the transmission time domain resources of the PUSCH or PUCCH are overlapped and positioned on at least one symbol in the first Y symbols of one time slot, performing corresponding operation.

Optionally, the operations comprise: and according to at least one of the PUCCH format and the symbol position, giving up transmission of the PUCCH or omitting transmission of the first X symbols of the PUCCH or the first Y symbols in the slot with the starting position.

Optionally, the operations further comprise: the first X symbols for transmitting PUSCH or the first Y symbols in the time slot where the starting position of the first X symbols is positioned are omitted.

Optionally, listen before transmission is performed before transmission of PUSCH or PUCCH omitting the first X symbols or the first Y symbols in the slot where its starting position is located.

Optionally, before transmitting the PUSCH or PUCCH omitting the first X symbols or the first Y symbols in the slot where the starting position thereof is located, no listen before transmission is performed.

The embodiment of the invention also provides a device for configuring the transmission time of the uplink physical channel, which comprises a memory and a processor, wherein the memory is stored with a computer program capable of running on the processor, and the processor executes the program to realize the steps in the method for configuring the transmission time of the uplink physical channel.

The embodiment of the present invention further provides a transmission apparatus for an uplink physical channel, which includes a memory and a processor, where the memory stores a computer program that can be executed on the processor, and the processor executes the computer program to implement the steps in the transmission method for the uplink physical channel.

The embodiment of the present invention further provides a transmission apparatus for an uplink physical channel, which includes a memory and a processor, where the memory stores a computer program that can be run on the processor, and the processor implements the steps in the transmission method for the uplink physical channel when executing the program.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following advantages:

the embodiment of the invention reduces the probability that the terminal monitors other terminals to transmit the PUCCH or the PUSCH during LBT by advancing the transmission time of the PRACH lead code, thereby improving the success rate of the terminal for transmitting the PRACH lead code.

According to the embodiment of the invention, the transmission part of symbols of the PUCCH or the PUSCH are omitted, so that the probability of detecting the PUCCH or the PUSCH is reduced when other terminals carry out LBT before the PRACH preamble is sent, and the success rate of the other terminals for transmitting the PRACH preamble is improved.

Drawings

Fig. 1 is a schematic flowchart of a method for configuring uplink physical channel transmission time according to an embodiment of the present invention;

FIG. 2 is a schematic flow chart of S11 of FIG. 1;

fig. 3 is a flowchart illustrating a method for transmitting an uplink physical channel according to an embodiment of the present invention;

FIG. 4 is a schematic flow chart of S22 in FIG. 3;

fig. 5 is a flowchart illustrating a method for configuring uplink physical channel transmission time according to an embodiment of the present invention;

fig. 6 is a flowchart illustrating a method for transmitting an uplink physical channel according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a configuration apparatus for uplink physical channel transmission time according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a transmission apparatus for uplink physical channels according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a configuration apparatus for uplink physical channel transmission time according to an embodiment of the present invention; and

fig. 10 is a schematic structural diagram of a transmission apparatus for an uplink physical channel according to an embodiment of the present invention.

Detailed Description

Fig. 1 is a signaling interaction diagram of a method for configuring uplink physical channel transmission time according to an embodiment of the present invention.

At S11, configuration information of the uplink physical channel transmission time is generated, where the configuration information includes: a first set of timing adjustment coefficients and a second adjustment coefficient.

In some embodiments, the first set of timing adjustment coefficients includes at least one first timing adjustment coefficient adapted to adjust a transmission time instant of the PRACH preamble, the at least one first timing adjustment coefficient being a plurality of different natural numbers.

In some embodiments, the time domain length corresponding to the first timing adjustment coefficient is smaller than the length of the PRACH preamble. If the time domain length corresponding to the first timing adjustment coefficient is greater than the length of the PRACH preamble, the complexity of the base station receiver may increase. The time domain length corresponding to the first timing adjustment coefficient is the product of the first timing adjustment coefficient and a time domain unit. Time domain unit T_cHas a length of 1/(Δ f)_max*N_f) Wherein, Δ f_max＝480kHz，N_f＝4096，Δf_maxIs the maximum frequency, N_fAre frequency coefficients. The parameters are detailed in section 38.2114.1.

In some embodiments, the value range of the first timing adjustment coefficient set is related to the radius of the cell, and when the radius of the cell is larger, some first timing adjustment coefficients in the first timing adjustment coefficient set have larger values; and when the radius of the cell is smaller, the values of some first timing adjustment coefficients in the first timing adjustment coefficient set are smaller.

In S12, the configuration information is transmitted to the terminal.

In some embodiments, the base station transmits the first set of timing adjustment coefficients to the terminal via a system message.

In some embodiments, the system message is RMSI information.

In some embodiments, the base station transmits the first set of timing adjustment coefficients to the terminal by RRC signaling.

Referring to fig. 2, fig. 2 is a schematic flow chart of S11 in fig. 1.

In some embodiments, when the number of the terminals is multiple, the transmitting the configuration information to the terminals further includes:

in S121, a plurality of terminals are grouped;

in S122, the same first timing adjustment coefficient set is configured for terminals in the same group, and different first timing adjustment coefficient sets are configured for different groups.

Specifically, in some embodiments, when a cell in which the base station resides has multiple terminals, the base station may transmit the same first set of timing adjustment coefficients to the multiple terminals.

In some embodiments, the base station may further group terminals in the cell, configure the same first timing adjustment coefficient set for the terminals in the same group, and configure the first timing adjustment coefficient sets for the terminals in different groups to be different.

In some embodiments, the criteria for grouping the terminals by the base station may include: distance between the base station and the terminal. The base station may group terminals that are close in distance from the base station. Because the transmission timing advance of different PRACH preambles is related to the distance from the base station, configuring the same first timing adjustment coefficient set for the terminals in the same group can keep the same transmission timing advance as much as possible for the terminals in the same group, and configuring the different first timing adjustment coefficient sets for different groups can be that each terminal with a different distance from the base station can have a respective appropriate timing advance, so that the base station can receive the PRACH preambles of different terminals at the same time.

In some embodiments, the grouping criteria may further include: time domain distribution of PRACH preambles of the terminal. The base station may group terminals with the same time domain distribution of the PRACH preambles. For example, terminal 1 and terminal 2 are configured to transmit PRACH preamble on slot1, and terminal 3 and terminal 4 are configured to transmit PRACH preamble on slot 2, so terminal 1 and terminal 2 may be divided into a first group and terminal 3 and terminal 4 into a second group. The base station may configure the same first timing adjustment coefficient set for the terminals in the same group, and configure different first timing adjustment coefficient sets for the terminals in different groups.

In some embodiments, the base station may broadcast the first set of timing adjustment coefficients to the terminal through SIBs.

In some embodiments, the base station may transmit the first set of timing adjustment coefficients to the terminal through higher layer signaling, which may be RRC signaling.

In some embodiments, the base station may indicate a certain first timing adjustment coefficient in the first set of timing adjustment coefficients through downlink control information. By dynamically indicating a certain timing adjustment coefficient in the first timing adjustment coefficient set through the DCI, the flexibility of the scheme can be improved.

In some embodiments, at the time of initial access, the base station obtains the distance between the user and the base station by receiving the PRACH preamble, so as to calculate the time advance required by the user to transmit the PUCCH or PUSCH, and notify the user, and therefore the configuration information further includes: and the second timing adjustment coefficient is suitable for adjusting the transmission time of the PUSCH and the PUCCH. Wherein, after transmitting the PRACH preamble, the terminal receives a Random Access Response (RAR), and the second timing adjustment coefficient is carried on the RAR.

In some embodiments, the second timing adjustment coefficient is carried in a MAC CE.

The second timing adjustment coefficient is an integer, and the sum of the first timing adjustment coefficient and the second timing adjustment coefficient is a natural number. By making the sum of the first timing adjustment coefficient and the second timing adjustment coefficient not less than zero, it can be ensured that a certain time lead is still left after the transmission time of the PUSCH and the PUCCH is adjusted, thereby ensuring that the terminal and the base station keep synchronous.

Referring to fig. 3, fig. 3 is a flowchart illustrating a method for transmitting an uplink physical channel according to an embodiment of the present invention.

In S201, receiving configuration information of a physical channel transmission time, where the configuration information includes: a first set of timing adjustment coefficients and a second timing adjustment coefficient.

Specifically, the first timing adjustment coefficient set includes at least one first timing adjustment coefficient, the first timing adjustment coefficient is suitable for adjusting a transmission time of the PRACH preamble, and the at least one first timing adjustment coefficient is a plurality of different natural numbers.

In S202, a first transmission time of the PRACH preamble is determined according to the first timing adjustment coefficient.

Specifically, referring to fig. 4, fig. 4 is a schematic flow chart of S22 in fig. 3;

in S2021, one first timing adjustment coefficient is selected from the first timing adjustment coefficient set.

In some embodiments, the terminal may randomly select one first timing adjustment coefficient from the first timing adjustment coefficient set, or may select a smallest first timing adjustment coefficient.

In S2022, according to (N)_{TA i}+N_{TA offset})*T_cA first transmission time instant of the PRACH preamble is determined.

Wherein N is_{TA i}Is a first timing adjustment coefficient, N_{TA offset}For timing adjustment of the coefficient offset, T_cIs a time domain unit, the (N)_{TA i}+N_{TA offset})*T_cIs the timing advance of the PRACH preamble.

In some embodiments, the transmission time instant of the PRACH preamble is advanced by N compared to existing schemes_{TA i}*T_cTherefore, the probability that the terminal monitors other terminals to transmit the PUCCH or PUSCH during LBT is reduced, and the success rate of the terminal for transmitting the PRACH preamble is improved.

In S203, LBT is performed before the first transmission time instant.

In S204, it is determined whether the channel is idle.

In some embodiments, if the monitored result is that the channel is idle, in S205, the PRACH preamble is transmitted at the corresponding time domain position. Specifically, (N) before the reference downlink subframe i_{TA i}+N_{TA offset})*T_cThe PRACH preamble transmission is started at a time instant.

If the monitored result is that the channel is busy, in S206, another larger first timing adjustment coefficient is continuously selected from the first timing adjustment coefficient set before the next transmission, so as to determine a second transmission time of the PRACH preamble.

In one embodiment, if the monitored result is that the channel is busy, before the next transmission, in S206, another smaller first timing adjustment coefficient is continuously selected from the first timing adjustment coefficient set to determine a second transmission time of the PRACH preamble.

In S207, LBT is performed before the second transmission instant.

If the monitored result is still that the channel is busy, repeating S206 and S207 until the monitored channel is idle, or selecting all the first timing adjustment coefficients in the first timing adjustment coefficient set. And if the monitoring result is that the channel is idle, transmitting the PRACH lead code at the corresponding time domain position.

By selecting a larger first timing adjustment coefficient, the transmission success probability of the PRACH preamble can be further improved.

In S208, a second timing adjustment coefficient is received.

After sending the PRACH preamble, the terminal receives RAR, wherein the RAR comprises a second timing adjustment coefficient, the second timing adjustment coefficient is suitable for adjusting the transmission time of at least one of a PUSCH and a PUCCH, the second timing adjustment coefficient is an integer, and the sum of the first timing adjustment coefficient and the second timing adjustment coefficient is a natural number.

In S209, the local timing adjustment coefficient is updated according to the received second timing adjustment coefficient and one first timing adjustment coefficient selected for the previous PRACH preamble transmission.

Specifically, the terminal is according to N_TA＝N_{TA NEW}+N_{TA i}Updating a local timing adjustment coefficient, wherein N_TAFor the local timing adjustment factor, N_{TA NEW}Adjusting the coefficient for the second timing.

In S210, according to (N)_TA+N_{TA offset})*T_cAnd determining the transmission time of the PUSCH or PUCCH.

Specifically, the (N)_TA+N_{TA offset})*T_cIs the timing advance of PUSCH or PUCCH.

In S211, the PUSCH or PUCCH is transmitted at the corresponding time domain location.

Specifically, the terminal is (N) before the reference downlink subframe i_TA+N_{TA offset})*T_cAnd starting to transmit PUSCH or PUCCH at the moment.

Referring to fig. 5, fig. 5 is a flowchart illustrating a method for configuring a transmission time of an uplink physical channel according to an embodiment of the present invention.

At S31, configuration information of the uplink physical channel transmission time is generated, where the configuration information includes: PRACH preamble transmission information and omission information.

Specifically, the PRACH preamble transmission information is adapted to indicate a transmission time domain resource of a PRACH preamble of a terminal within a cell. When the PUSCH or PUCCH is transmitted, if the PUSCH or PUCCH is overlapped with the transmission time domain resource of the PRACH preamble of the other terminal and the PUSCH or PUCCH is located on at least one of the first Y symbols of one slot, the omission information is adapted to indicate that the first X symbols of the PUSCH or PUCCH are omitted from being transmitted, and the X, Y is a natural number.

In some embodiments, the base station determines the PRACH preamble transmission information from a historical information record. After receiving the PRACH preamble transmission information, the terminal may know when each terminal in the cell may send the PRACH preamble, and use this as a basis for adjusting the PUSCH or PUCCH transmission time. In some embodiments, the value of X may be determined according to a cell radius, and the value of X may range from 0 to 14 symbols.

In some embodiments, the value of X is determined according to a length of a PRACH preamble previously transmitted by the terminal.

In S32, the configuration information is transmitted to the terminal.

In some embodiments, the configuration information may adjust a time domain interval in which the terminal uploads the PUSCH or the PUCCH, so that when other terminals perform LBT before sending the PRACH preamble, the probability of detecting the PUCCH or the PUSCH is reduced, thereby improving the success rate of transmitting the PRACH preamble by other terminals.

In some embodiments, the PRACH preamble transmission information may be indicated by RRC signaling.

In some embodiments, the PRACH preamble transmission information may be broadcast by SIB information.

In some embodiments, the PRACH preamble transmission information may be a bitmap (bitmap), where 1 indicates that on the time domain resource where the PRACH preamble is located, the PUCCH or PUSCH needs to perform S46 or S47 operation; 0 indicates that the PUCCH or PUSCH does not need to perform S46 or S47 operations on the time domain resource where the PRACH preamble is located.

In some embodiments, the value of X may be broadcast by SIB information.

In some embodiments, the value of X may be indicated by RRC signaling.

In some embodiments, the value of X may be dynamically indicated by DCI or MAC CE.

Referring to fig. 6, fig. 6 is a flowchart illustrating a method for transmitting an uplink physical channel according to an embodiment of the present invention.

In S41, PRACH preamble transmission information is received.

Wherein the PRACH preamble transmission information is adapted to indicate transmission time domain resources of a PRACH preamble of a terminal in a cell.

In S42, omission information is received.

When the PUSCH or PUCCH is transmitted, if the transmission time domain resource of the PRACH preamble of the other terminal overlaps with the transmission time domain resource of the PRACH preamble of the other terminal, the omission information is adapted to indicate that the first X symbols of the PUSCH or PUCCH are omitted from being transmitted, where X is a natural number.

At S43, it is determined whether or not the transmission time domain resource of the PUSCH or PUCCH overlaps with the transmission time domain resource indicated by the PRACH preamble transmission information.

The transmission time domain resource of the PUSCH or PUCCH of the terminal overlaps with the transmission time domain resource indicated by the PRACH preamble transmission information, which means that when the terminal performs PUCCH transmission, it is likely that other terminals in the cell are blocked from performing PRACH preamble transmission, and if the terminal does not overlap, the other terminals are not blocked from performing PRACH preamble transmission.

At S44, it is determined whether the transmission time domain resource of PUSCH or PUCCH is located on at least one of the first Y symbols of one slot.

In some embodiments, the value of Y may be obtained according to a format of a PRACH previously transmitted by the terminal, and the value of Y may range from 0 to 10 symbols.

In some embodiments, the value of Y may be broadcast by SIB information.

In some embodiments, the value of Y may be indicated by RRC signaling.

In some embodiments, the value of Y may be dynamically indicated by DCI or MAC CE.

Therefore, if the overlap is satisfied and the transmission time domain resource of the PUSCH or PUCCH is located on at least one of the first Y symbols of one slot, the terminal performs a corresponding operation. If there is no overlap or the transmission time domain resource of the PUSCH or PUCCH is not located on at least one of the first Y symbols of one slot, the terminal transmits the PUSCH or PUCCH (S45).

The starting time of the terminal for transmitting the PRACH preamble is generally located at the starting position of one slot, and the terminal transmits PUSCH or PUCCH

The operations include S46 and S47.

In S46, according to at least one of the PUCCH format and the time domain position where the PUCCH format is located, the transmission of the PUCCH is abandoned or the first X symbols of the PUCCH or the first Y symbols in the slot where the starting position of the symbols is located are omitted.

Specifically, for the PUCCHs of format 0(format 0) and format 2, if the occupied symbol position is within the first Y symbols, the PUCCH transmission is abandoned. For these two types of PUCCH, the length is short, and after omitting the first X symbols, the meaning of continuing transmission is not great.

For the PUCCH of format 1, format 3 and format 4, if it occupies the first 4-14 symbols within one slot, the configured value of Y is compared with the configured value of X.

In some embodiments, when the configured value of Y is greater than the configured value of X, for the PUCCHs of format 1, format 3 and format 4, the first Y symbols in the slot where the starting position of the PUCCH is transmitted are omitted.

In some embodiments, when the configured value of Y is not greater than the configured value of X, for the PUCCH of format 1, format 3, and format 4, transmission of the first X symbols of the PUCCH is omitted.

In S47, the first X symbols in the slot where the first X or starting position of the PUSCH is transmitted are omitted.

In some embodiments, when the configured value of Y is greater than the configured value of X, then the first Y symbols in the slot where the starting position of PUSCH transmission is located are omitted.

In some embodiments, when the configured value of Y is not greater than the configured value of X, then the first X symbols of PUSCH are omitted from being transmitted.

In some embodiments, if the terminal omits to transmit partial symbols of the PUCCH or the PUSCH or abandons to transmit the PUCCH, the probability of detecting the PUCCH or the PUSCH may be reduced when other terminals perform LBT before transmitting the PRACH preamble, so as to improve the success rate of transmitting the PRACH preamble by other terminals.

In some embodiments, the terminal performs LBT before transmitting PUSCH or PUCCH omitting the first X symbols.

In some embodiments, the terminal performs LBT before transmitting PUSCH or PUCCH omitting the first Y symbols in the slot where its starting position is located.

In some embodiments, the terminal does not perform LBT before transmitting PUSCH or PUCCH omitting the first X symbols.

In some embodiments, the terminal does not perform LBT before transmitting PUSCH or PUCCH omitting the first Y symbols in the slot in which its starting position is located.

In some embodiments, the base station instructs the terminal whether to LBT before transmitting PUSCH or PUCCH omitting the first X symbols.

In some embodiments, if a PUSCH or PUCCH transmission is within a Channel Occupancy window (COT) obtained by one of the base stations, the base station instructs the terminal not to perform LBT before transmitting the PUSCH or PUCCH omitting the first X symbols.

In some embodiments, if a PUSCH or PUCCH transmission is within the COT obtained by one of the terminals, the base station instructs the terminal not to LBT prior to transmitting a PUSCH or PUCCH omitting the first X symbols.

In some embodiments, if a PUSCH or PUCCH transmission is outside the COT obtained by one of the base stations, the base station instructs the terminal to LBT before transmitting a PUSCH or PUCCH omitting the first X symbols.

In some embodiments, if a PUSCH or PUCCH transmission is outside the COT obtained by one of the terminals, the base station instructs the terminal to LBT before transmitting a PUSCH or PUCCH omitting the first X symbols.

Referring to fig. 7, fig. 7 is a schematic structural diagram of an apparatus for configuring uplink physical channel transmission time according to an embodiment of the present invention, where the apparatus is suitable for an NR base station side. The device comprises a memory 51 and a processor 52, wherein the memory 51 stores a computer program which can run on the processor 52, the computer program stored on the memory 51 is a program for realizing the steps of the method, and the processor 52 realizes the steps when executing the program. The memory 51 may include: ROM, RAM, magnetic or optical disks, and the like. The steps are referred to above and are not described herein.

Referring to fig. 8, fig. 8 is a schematic structural diagram of an apparatus for configuring transmission time of an uplink physical channel according to an embodiment of the present invention, where the apparatus is suitable for use on the NR base station side. The device comprises a memory 61 and a processor 62, wherein the memory 61 stores a computer program which can run on the processor 62, the computer program stored on the memory 61 is a program for realizing the steps of the method, and the processor 62 realizes the steps when executing the program. The memory 61 may include: ROM, RAM, magnetic or optical disks, and the like. The steps are referred to above and are not described herein.

Referring to fig. 9, fig. 9 is a schematic structural diagram of an apparatus for configuring uplink physical channel transmission time according to an embodiment of the present invention, where the apparatus is applied to an NR base station side. The device comprises a memory 71 and a processor 72, wherein the memory 71 stores a computer program which can run on the processor 72, the computer program stored on the memory 71 is a program for realizing the steps of the method, and the processor 72 realizes the steps when executing the program. The memory 71 may include: ROM, RAM, magnetic or optical disks, and the like. The steps are referred to above and are not described herein.

Referring to fig. 10, fig. 10 is a schematic structural diagram of an apparatus for configuring uplink physical channel transmission time according to an embodiment of the present invention, where the apparatus is applied to an NR base station side. The device comprises a memory 81 and a processor 82, wherein the memory 81 stores a computer program which can run on the processor 82, the computer program stored on the memory 81 is a program for realizing the steps of the method, and the processor 82 realizes the steps when executing the program. The memory 81 may include: ROM, RAM, magnetic or optical disks, and the like. The steps refer to the above steps, and are not described herein again.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected by one skilled in the art without departing from the spirit and scope of the invention, as defined in the appended claims.

Claims

1. A method for configuring transmission time of an uplink physical channel is characterized by comprising the following steps:

generating configuration information of the transmission time of the uplink physical channel;

the configuration information includes:

a first timing adjustment coefficient set including at least one first timing adjustment coefficient adapted to adjust a transmission time of the PRACH preamble, the at least one first timing adjustment coefficient being a plurality of different natural numbers; and

and transmitting the configuration information to the terminal.

2. The configuration method of claim 1, wherein the configuration information further comprises:

a second timing adjustment coefficient adapted to adjust transmission time of the PUSCH and PUCCH;

the second timing adjustment coefficient is an integer, and the sum of the first timing adjustment coefficient and the second timing adjustment coefficient is a natural number.

3. The configuration method according to claim 2, wherein the time domain length corresponding to the first timing adjustment coefficient is smaller than the format length of the PRACH.

4. The method of claim 2, wherein the first set of timing adjustment coefficients is broadcast via SIBs.

5. The method according to claim 2, wherein the first set of timing adjustment coefficients is transmitted to the terminal by RRC signaling.

6. The method of claim 2, wherein the first set of timing adjustment coefficients is transmitted to the terminal via DCI.

7. The method according to claim 1, wherein when the number of the terminals is plural, the transmitting the configuration information to the terminals comprises:

grouping a plurality of terminals; and

the same first timing adjustment coefficient set is configured for terminals in the same group, and different first timing adjustment coefficient sets are configured for different groups.

8. A method for transmitting an uplink physical channel includes:

receiving configuration information of a physical channel transmission time, wherein the configuration information comprises: a first timing adjustment coefficient set including at least one first timing adjustment coefficient adapted to adjust a transmission time of the PRACH preamble, the at least one first timing adjustment coefficient being a plurality of different natural numbers;

determining a first transmission time of the PRACH preamble according to the first timing adjustment coefficient;

monitoring before transmitting before the first transmission moment; and

and if the monitoring result is that the channel is idle, transmitting the PRACH lead code at the corresponding time domain position.

9. The transmission method according to claim 8, wherein the determining a first transmission time of a PRACH preamble according to the configuration information comprises:

selecting a first timing adjustment coefficient from the first timing adjustment coefficient set; and

according to (N)_{TA i}+N_{TA offset})*T_cDetermining a first transmission time of a PRACH preamble, wherein N_{TA i}Is a first timing adjustment coefficient, N_{TA offset}For timing adjustment of the coefficient offset, T_cAre time domain units.

10. The transmission method according to claim 8, further comprising:

if the monitoring result is that the channel is busy, another larger first timing adjustment coefficient is continuously selected from the first timing adjustment coefficient set before the next transmission so as to adjust the transmission time of the PRACH preamble and form a second transmission time of the PRACH preamble;

monitoring before sending before the second transmission moment; and

if the monitoring result is that the channel is busy, repeating the steps until the channel is monitored to be idle, or selecting all the first timing adjustment coefficients in the first timing adjustment coefficient set.

11. The transmission method according to claim 10, wherein the configuration information further comprises: a second timing adjustment coefficient, adapted to adjust transmission time of a PUSCH and a PUCCH, where the second timing adjustment coefficient is an integer, and a sum of the first timing adjustment coefficient and the second timing adjustment coefficient is a natural number; the transmission method further comprises:

updating the local timing adjustment coefficient according to the received second timing adjustment coefficient and a first timing adjustment coefficient selected for the previous PRACH preamble transmission, wherein N is_TA＝N_{TA NEW}+N_{TA i}；

According to (N)_TA+N_{TA offset})*T_cDetermining the transmission time of PUSCH or PUCCH; and

transmitting PUSCH or PUCCH at the corresponding time domain position;

wherein, the N is_TAFor the local timing adjustment factor, N_{TA NEW}Adjusting the coefficient for the second timing.

12. A method for configuring transmission time of an uplink physical channel is characterized by comprising the following steps:

the configuration information includes:

the PRACH lead code transmission information is suitable for indicating the transmission time domain resources of the PRACH lead code of the terminal in the cell;

omission information, when a PUSCH or PUCCH is transmitted, if the PUSCH or PUCCH overlaps with a transmission time domain resource of a PRACH preamble of another terminal, and the PUSCH or PUCCH is located on at least one symbol of first Y symbols of one slot, adapted to indicate that transmission of the PUSCH or PUCCH is omitted, where X, Y is a natural number; and

and transmitting the configuration information to the terminal.

13. The method of claim 12, wherein the PRACH preamble transmission information is indicated by RRC signaling.

14. The method of claim 12, wherein the value of X or Y is broadcasted through SIB information.

15. The method according to claim 12, wherein the value of X or Y is indicated by RRC signaling.

16. The method of claim 12, wherein the value of X or Y is dynamically indicated by DCI or MAC CE.

17. A method for transmitting an uplink physical channel includes:

receiving PRACH preamble transmission information, wherein the PRACH preamble transmission information is suitable for indicating transmission time domain resources of PRACH preambles of terminals in a cell;

receiving omission information, wherein when the PUSCH or PUCCH is transmitted, if the omission information is overlapped with the transmission time domain resource of the PRACH preamble of other terminals, the omission information is suitable for indicating that the first X symbols of the PUSCH or PUCCH are omitted from being transmitted, and X is a natural number;

judging whether the transmission time domain resource of the PUSCH or PUCCH is overlapped with the transmission time domain resource indicated by the PRACH preamble transmission information;

judging whether the transmission time domain resource of the PUSCH or PUCCH is positioned on at least one symbol in the first Y symbols of a time slot; and

and if the transmission time domain resources of the PUSCH or PUCCH are overlapped and positioned on at least one symbol in the first Y symbols of one time slot, performing corresponding operation.

18. The transmission method of claim 17, wherein the operations comprise: and according to at least one of the PUCCH format and the symbol position, giving up transmission of the PUCCH or omitting transmission of the first X symbols of the PUCCH or the first Y symbols in the slot with the starting position.

19. The transmission method of claim 17, wherein the operations further comprise: the first X symbols for transmitting PUSCH or the first Y symbols in the time slot where the starting position of the first X symbols is positioned are omitted.

20. The transmission method according to claim 18 or 19, wherein listen before transmission is performed before transmission of the PUSCH or PUCCH omitting the first X symbols or the first Y symbols in the slot where its starting position is located.

21. The transmission method according to claim 18 or 19, wherein listen before transmission is not performed before transmission of the PUSCH or PUCCH omitting the first X symbols or the first Y symbols in the slot where its starting position is located.

22. An apparatus for configuring physical uplink channel transmission time, comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and wherein the processor implements the steps of the method for configuring physical uplink channel transmission time according to any one of claims 1 to 7 when executing the program.

23. A transmission apparatus for uplink physical channels, comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and wherein the processor executes the program to implement the steps in the transmission method for uplink physical channels according to any one of claims 8 to 11.

24. An apparatus for configuring physical uplink channel transmission time instants, comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and wherein the processor executes the computer program to implement the steps in the method for configuring physical uplink channel transmission time instants according to any one of claims 12 to 16.

25. A transmission apparatus for uplink physical channels, comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and wherein the processor executes the program to implement the steps in the transmission method for uplink physical channels according to any one of claims 17 to 21.