CN115134048B

CN115134048B - Uplink transmission method and device, terminal and readable storage medium

Info

Publication number: CN115134048B
Application number: CN202110328366.1A
Authority: CN
Inventors: 王勇; 吴凯
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2024-04-26
Anticipated expiration: 2041-03-26
Also published as: CN115134048A

Abstract

The application discloses an uplink transmission method and device, a terminal and a readable storage medium, belonging to the technical field of communication, wherein the uplink transmission method of the embodiment of the application comprises the following steps: the terminal determines a transmission mode of the first uplink transmission according to the first information; the terminal executes the first uplink transmission based on the transmission mode; the time domain resources allocated for the second uplink transmission are L OFDM symbols, the second uplink transmission comprises the first uplink transmission, and the time domain resources used for the first uplink transmission for actual transmission are L1 OFDM symbols in L; l is greater than L1, and L is a positive integer greater than 1. The embodiment of the application solves the problem of resource waste caused by directly canceling the actual repeated transmission or the transmission which does not meet the transmission resource limit in the prior art.

Description

Uplink transmission method and device, terminal and readable storage medium

Technical Field

The application belongs to the technical field of communication, and particularly relates to an uplink transmission method and device, a terminal and a readable storage medium.

Background

In the prior art, the transmission process of the repeat transmission type B (PUSCH repetition type B) for the physical uplink shared channel may cause the nominal repeat transmission (nominal repetition) to be divided into a plurality of actual repeat transmissions (actual repetition) due to the existence of a slot boundary (slot boundary) or an invalid symbol (invaild symbols), at this time, independent symbols (orphan symbol) may occur, and the existing protocol directly ignores (omit) the actual repeat transmission with the symbol number of 1.

Disclosure of Invention

The embodiment of the application provides an uplink transmission method and device, a terminal and a readable storage medium, which can solve the problem of resource waste caused by directly deleting actual repeated transmission resources in the prior art.

In a first aspect, an uplink transmission method is provided, including: the terminal determines a transmission mode of the first uplink transmission according to the first information; the terminal executes the first uplink transmission based on the transmission mode; the time domain resources allocated for the second uplink transmission are L OFDM symbols, the second uplink transmission includes the first uplink transmission, and the time domain resources used for the first uplink transmission in the actual transmission are L1 OFDM symbols in L; l is greater than L1, and L is a positive integer greater than 1.

In a second aspect, an uplink transmission apparatus is provided, including: the determining module is used for determining a transmission mode of the first uplink transmission according to the first information; the execution module is used for executing the first uplink transmission based on the transmission mode; the time domain resources allocated for the second uplink transmission are L Orthogonal Frequency Division Multiplexing (OFDM) symbols, and the second uplink transmission comprises the first uplink transmission; the time domain resource used for actual transmission in the first uplink transmission is L1 OFDM symbols in L; l is greater than L1, and L is a positive integer greater than 1.

In a third aspect, there is provided a terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the steps of the method according to the first aspect.

In a fourth aspect, a terminal is provided, including a processor and a communication interface, where the processor is configured to determine, according to first information, a transmission mode of a first uplink transmission on a target OFDM symbol, execute the first uplink transmission based on the transmission mode, and the communication interface is configured to transmit resources required for executing the first uplink transmission.

In a fifth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor realizes the steps of the method according to the first aspect.

In a sixth aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor for running a program or instructions to implement the method of the first aspect.

In a seventh aspect, a computer program/program product is provided, the computer program/program product being stored in a non-volatile storage medium, the program/program product being executed by at least one processor to implement the method steps as described in the first aspect.

In the embodiment of the present application, a transmission manner of the first uplink transmission on the L1 OFDM symbols of the time domain resource for actual transmission may be determined according to the first information, where the time domain resource for actual transmission may be a resource divided from the nominal repeated transmission (nominal repetition) into the actual repeated transmission (actual repetition) in a specific application scenario. That is, the present application can determine the transmission mode of the actual repeated transmission, for example, perform DMRS or data transmission, and provide some additional resources for the adjacent repeated transmission or uplink transmission, so as to avoid the problem of resource waste caused by directly canceling the actual repeated transmission or the transmission that does not meet the transmission resource limitation in the prior art.

Drawings

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable;

Fig. 2 is a flow chart of an uplink transmission method according to an embodiment of the present application;

FIG. 3 is one of the schematic diagrams of the resource transmission based on actual repetition according to the embodiment of the present application;

FIG. 4 is a second diagram illustrating a actual repetition-based resource transfer in accordance with an embodiment of the present application;

FIG. 5 is a third diagram illustrating a actual repetition-based resource transfer in accordance with an embodiment of the present application;

FIG. 6 is a diagram illustrating a actual repetition-based resource transfer in accordance with an embodiment of the present application;

FIG. 7 is a fifth illustrative diagram of a actual repetition-based resource transfer in accordance with an embodiment of the present application;

FIG. 8 is a diagram illustrating a actual repetition-based resource transfer in accordance with an embodiment of the present application;

FIG. 9 is a diagram of a actual repetition-based resource transfer in accordance with an embodiment of the present application;

FIG. 10 is a diagram illustrating a actual repetition-based resource transfer in accordance with one embodiment of the present application;

FIG. 11 is a diagram illustrating a ninth aspect of the present application for resource transmission based on actual repetition;

FIG. 12 is a schematic diagram of actual repetition-based resource transmission in accordance with an embodiment of the present application;

FIG. 13 is a diagram illustrating an eleventh aspect of the present application for resource transmission based on actual repetition;

FIG. 14 is a diagram illustrating a transmission of resources based on actual repetition in accordance with one embodiment of the present application;

FIG. 15 is a diagram illustrating thirteenth resource transmission based on actual repetition according to an embodiment of the present application;

FIG. 16 is a diagram illustrating fourteen resource transmissions based on actual repetition in accordance with one embodiment of the present application;

FIG. 17 is a diagram of fifteen resource transmissions based on actual repetition in accordance with an embodiment of the present application;

FIG. 18 is a diagram illustrating sixteen of the transmission of resources based on actual repetition in accordance with an embodiment of the present application;

FIG. 19 is a diagram of seventeen embodiments of the present application for resource transmission based on actual repetition;

fig. 20 is a schematic diagram of the preparation time t_proc of PUSCH2 of the conventional protocol;

fig. 21 is a diagram of the present application redefining the preparation time t_proc_new1 of PUSCH2 in the above situation;

Fig. 22 is a schematic diagram of the present application using a new preparation time t_proc_new2 for PUSCH 2;

Fig. 23 is a schematic structural diagram of an uplink transmission device according to an embodiment of the present application;

fig. 24 is a schematic structural view of a communication terminal according to an embodiment of the present application;

fig. 25 is a schematic structural diagram of a terminal according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for exemplary purposes and NR terminology is used in much of the following description, but these techniques may also be applied to applications other than NR system applications, such as 6 th Generation (6G) communication systems.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a terminal device or a User Equipment (UE), and the terminal 11 may be a terminal-side device such as a Mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a palm Computer, a netbook, an ultra-Mobile Personal Computer (ultra-Mobile Personal Computer, UMPC), a Mobile internet device (Mobile INTERNET DEVICE, MID), a wearable device (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), and the wearable device includes: smart watches, bracelets, headphones, eyeglasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, where the base station may be called a node B, an evolved node B, an access Point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a Basic service set (Basic SERVICE SET, BSS), an Extended service set (Extended SERVICE SET, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access Point, a WiFi node, a transmission and reception Point (TRANSMITTING RECEIVING Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that, in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

First, related terms in the present application will be explained.

1. Uplink signal waveform

There are two types of transmit waveforms for the upstream signal: cyclic prefix orthogonal frequency division multiplexing (Cyclic Prefix Orthogonal Frequency Division Multiplexing, CP-OFDM) waveforms and fourier orthogonal frequency division multiplexing (Discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplexing, DFT-S-OFDM) waveforms. The uplink transmit waveform of the uplink signal is indicated by a system message, wherein when transform precoding disabled (transmit precoding/transform precoding is not enabled), it indicates that the CP-OFDM waveform is used; when transform precoding enabled (transmit precoding/transform precoding enabled), the use of the DFT-s-OFDM waveform is indicated.

2. PUSCH Repetition type B A

A Physical Uplink SHARED CHANNEL, PUSCH retransmission scheme, called PUSCH repetition type B (repetition type B), was introduced in the existing protocol. In this scheme, a single non-Fallback downlink control information (Downlink Control Information, DCI) (non-Fallback DCI, which may be DCI format 0_1 or DCI format 0_2) may schedule one or more temporally consecutive Nominal repetitions PUSCH determined by a row in a time domain resource allocation table configured at a higher layer by indicating an index of that row, the first Nominal repetitions PUSCH of these Nominal repetitions PUSCH is determined by the K2 parameter and SLIV in that row, and the remaining Nominal repetitions PUSCH are arranged next to each other immediately thereafter, i.e., time domain resource allocations of m×k consecutive symbols (where M is the number of consecutive symbols occupied by each Nominal repetitions PUSCH, and K is the number of Nominal repetitions PUSCH that are time domain consecutive) are determined by the DCI. When a certain non-Fallback DCI format is configured to support PUSCH repetition type B, a column numberofrepetitions (repetition number) of parameters is added to the time domain resource allocation table configured independently for the DCI format, and numberofrepetitions parameters of each row in the resource allocation table may be configured independently for indicating the Nominal repetitions PUSCH number corresponding to the row.

The above-described time-sequential Nominal repetitions PUSCH scheduled by DCI will be further segmented based on the original boundaries between Nominal PUSCH and due to the segmentation emerging boundaries, forming a series of Actual repetitions PUSCH transmissions, these Actual repetitions PUSCH are all repeated transmissions for a single Transport Block (TB) or hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) process of the DCI schedule:

always segmented based on slot boundaries when a certain Nominal repetitions PUSCH crosses slot boundaries;

Nominal repetitions PUSCH is segmented before and after the semi-static DL symbols configured in the higher layer (semi-static DL symbols in M x K range are not occupied by PUSCH);

When the dynamic slot format indicator (dynamic Slot Format Indicator, DYNAMIC SFI) is configured, a Pattern for Invalid symbols may also optionally be configured for the non-Fallback DCI format, nominal repetitions PUSCH being segmented (Invalid symbols in M x K range not occupied by PUSCH) before and after Invalid symbols based on a 1 bit indication in the DCI or always (when the aforementioned 1 bit is not present).

When actual repetition occupies an OFDM symbol of length 1, the actual repetition is ignored by omitted unless the repetition transmission is configured with a time domain resource allocation length l=1.

3. PUSCH DMRS sequence generation

DMRS sequence of CP-OFDM waveform:

Wherein c (i) is a pseudo-random sequence, and two m sequences are obtained by operation:

c(n)＝(x₁(n+N_C)+x₂(n+N_C))mod2

x₁(n+31)＝(x₁(n+3)+x₁(n))mod2

x₂(n+31)＝(x₂(n+3)+x₂(n+2)+x₂(n+1)+x₂(n))mod2

Where N _C =1600, the sequence x ₁ (N) has a fixed initialization state x ₁(0)＝1,x₁ (N) =0, n=1, 2,..30, the initialization state of the sequence x ₂ (N) is defined by parameters It is determined that the number of the cells,

It can be seen that: the value of c_init is related to the slot number where the DMRS is located and the symbol number within the slot.

DMRS sequence of DFT-s-OFDM waveform:

Wherein the method comprises the steps of According to the configuration:

If the higher layer parameters dmrs-UplinkTransformPrecoding are configured, the PUSCH uses pi/2-BPSK modulation, and the PUSCH is not msg3 PUSCH, and the transmission is not a transmission scheduled by DCI format 0_0 on common SEARCH SPACE, the sequence is generated by Low-PAPR sequence type 2, and the initial value is given by the following formula:

it can be seen that the value of c_init is related to the slot number where the DMRS is located and the symbol number within the slot.

Otherwise the first set of parameters is selected,The sequence is generated by Low-PAPR sequence type 1, namely:

Wherein when the sequence length is 36 or more,

When the sequence length is equal to 30,

When the sequence length is equal to 6,12,18,24,

Further, in the above sequence, the sequence group identifierAnd determination of the values of the sequence group hopping parameter f _gh and the sequence number v:

If group hopping and sequence hopping are both disabled, f _gh =0, v=0;

if group hopping enabled and sequence hopping disabled, then:

v＝0

If group hopping disabled and sequence hopping enabled, then:

f_gh＝0

in the above process, it can be seen that the generation of the DMRS sequence is related to the slot sequence number where the DMRS is located and the symbol number in the slot.

Only when transform precoding enabled and the time domain resource allocation of PUSCH transmission is less than or equal to 2 OFDM symbols, REs which are not used by the DMRS on the time domain OFDM symbol where the DMRS is located can be used to transmit data; otherwise, REs on the time domain OFDM symbol where the DMRS is located that are not used by the DMRS cannot be used to transmit data.

4. UE PUSCH preparation time A

If the first uplink symbol in PUSCH allocation (including DMRS) of a TB is transmitted, considering the influence of TA (Timing Advance) and not earlier than symbol L2, the UE transmits PUSCH carrying the TB;

Otherwise, the UE may ignore DCI scheduling the PUSCH.

Wherein, PUSCH allocation and its first uplink symbol are mainly indicated by a time domain resource allocation field (Time Domain Resource Assignment, TDRA) field in DCI for scheduling the PUSCH;

The symbol L2 is defined as: after receiving the next symbol of the PDCCH (carrying DCI scheduling the PUSCH), the next uplink symbol (including its own CP) after a time T _proc,2 elapses.

Further, the PUSCH preparation time is:

T_pro_c,2＝max((N₂+d_2,1+d₂)(2048+144)·κ2^-μ·T_C+T_ext+T_switch,d_2,2)

If the first symbol of PUSCH allocation only includes DMRS, d _2,1 in the above formula is 0; otherwise, d _2,1 is 1.

The uplink transmission method provided by the embodiment of the application is described in detail below through some embodiments and application scenarios thereof with reference to the accompanying drawings.

As shown in fig. 2, the method steps of the uplink transmission method in the embodiment of the present application include:

step 202, a terminal determines a transmission mode of a first uplink transmission on a target Orthogonal Frequency Division Multiplexing (OFDM) symbol according to first information;

Step 204, the terminal performs a first uplink transmission based on the transmission mode;

The time domain resources allocated for the second uplink transmission are L OFDM symbols, the second uplink transmission comprises the first uplink transmission, and the time domain resources used for the first uplink transmission for the actual transmission are L1 OFDM symbols in L; l is greater than or equal to L1, and L is a positive integer greater than 1.

Through the steps 202 and 204, a transmission manner of the first uplink transmission on the L1 OFDM symbols of the time domain resource for actual transmission may be determined according to the first information, where the time domain resource for actual transmission may be a resource divided from the nominal repeated transmission (nominal repetition) into the actual repeated transmission (actual repetition) in a specific application scenario. That is, the present application can determine the transmission mode of the actual repeated transmission, for example, perform DMRS or data transmission, and provide some additional resources for the adjacent repeated transmission or uplink transmission, so as to avoid the problem of resource waste caused by directly canceling the actual repeated transmission or the transmission that does not meet the transmission resource limitation in the prior art.

In an optional implementation manner of the embodiment of the present application, before the terminal involved in step 202 determines, according to the first information, a transmission mode of the first uplink transmission, the method of the embodiment of the present application may further include:

Step 200, the terminal acquires the first information by at least one of the following modes:

1) Predefining rules;

2) Uplink grant corresponding to the first uplink transmission;

Wherein, for a dynamic grant (DYNAMIC GRANT, DG) PUSCH, the UL grant is carried by the DCI scheduling the PUSCH; for type 1CG (Configured Grant) PUSCH, the UL Grant is a Configured Grant (Configured Grant); for type 2CG PUSCH, the UL grant is configured grant, but DCI is required for activation/deactivation. If the first uplink transmission is a retransmission transmission, the UL grant is a grant of the retransmission transmission

3) UL grant corresponding to the second uplink transmission; wherein, the second uplink transmission has relevance with the first uplink transmission;

Wherein, the relevance refers to that some transmission contents are shared between the first uplink transmission and the second uplink transmission, for example, the first uplink transmission and the second uplink transmission share the DMRS, so that joint channel estimation can be performed; or, the first uplink transmission and the second uplink transmission belong to the same DMRS bundling.

4) Radio resource control (Radio Resource Control, RRC) configuration;

5) A medium access Control unit (Medium Access Control-Control Element, MAC CE) indication.

In an optional implementation manner of the embodiment of the present application, the first uplink transmission related to the embodiment of the present application includes at least one of the following:

1) The physical uplink shared channel repeat transmission type A (PUSCH repetition type A);

2) The physical uplink shared channel repeat transmission type B (PUSCH repetition type B);

3) Transmission (PUSCH TBoMS) of the physical uplink shared channel across multiple slots;

4) Physical uplink control channel (Physical Uplink Control Channel, PUCCH).

It should be noted that, the physical uplink shared channel repeated transmission type a and the physical uplink shared channel repeated transmission type B included in the first uplink transmission refer to a transmission corresponding to the physical uplink shared channel repeated transmission type a and a transmission corresponding to the physical uplink shared channel repeated transmission type B.

Based on the type of the first uplink transmission, in an alternative implementation of the embodiment of the present application, in a case where the first uplink transmission includes at least one of PUSCH repetition type A and PUCCH, L-N > =l1; wherein N is obtained by higher layer parameter configuration or by a predefined way.

Wherein, the configuration by the high-level parameters may be n=1, 2, … M, M is a positive integer. N obtained by a predefined way may refer to N obtained by: n=floor (L/2) or n=ceil (L/2). Wherein floor is rounded downward in orientation and ceil is rounded upward in orientation.

Note that, in the existing protocol, for PUSCH repetition type A and PUCCH, as long as L1< L, the transmission resource is not available. In the present application, in order to make available the transmission resource in this case, a condition is set as L-N > =l1, where N is obtained by higher-layer parameter configuration on the network side or by a predefined manner. Therefore, by means of the embodiment of the application, under the condition that L1 is smaller than L, unavailable resources can be changed into available resources, so that the resource utilization rate is improved.

Based on the type of the first uplink transmission, in an alternative implementation manner of the embodiment of the present application, l1=1 in the case where the first uplink transmission is PUSCH repetition type B; wherein L1 is the number of OFDM symbols occupied by PUSCH transmission corresponding to actual repeated transmission actual repetition.

In an optional implementation manner of the embodiment of the present application, the first information in the embodiment of the present application is used to indicate at least one of the following:

1) Enabling a first uplink transmission;

2) The transmission mode is to transmit only demodulation reference signal (DMRS);

3) The transmission mode is to only transmit data;

4) The transmission mode is to only transmit control information;

5) The transmission mode is to transmit data and DMRS simultaneously;

6) The transmission mode is to transmit the control information and the DMRS simultaneously.

The transmission methods 1) to 6) indicated by the first information are not limited to L1. In yet another alternative implementation of the embodiment of the present application, the first information in the embodiment of the present application may be used to indicate at least one of the following:

1) In the case where L1 is equal to 1, the transmission scheme includes one of: only DMRS, only data, only control information;

2) In the case where L1 is equal to 1, and the first uplink transmission is PUSCH and the waveform is cyclic prefix orthogonal frequency division multiplexing CP-OFDM, the transmission mode includes one of the following: transmitting only DMRS, transmitting only data, transmitting data and DMRS simultaneously;

3) In the case where L1 is equal to 1 and the first uplink transmission is physical uplink control channel format 2pucch format2, the transmission mode includes one of the following: transmitting only the DMRS, transmitting only the control information, simultaneously transmitting the control information and the DMRS;

4) In the case where L1 is greater than 1, the transmission scheme includes one of the following: only data is transmitted, data and DMRS are simultaneously transmitted, control information and DMRS are simultaneously transmitted.

It can be seen that, in the modes 1) to 4) indicated by the first information, the first information is transmitted by the corresponding transmission mode when the values of the indication L1 are different.

In an optional implementation manner of the embodiment of the present application, in a case where the transmission mode is to transmit only the DMRS, the first uplink transmission has at least one of the following characteristics:

Feature 1: the DMRS used for the first uplink transmission is identical to the DMRS used for the adjacent uplink transmission in one of the following: frequency domain Resource allocation, antenna ports, total transmit power, energy per Resource unit (ENERGY PER Resource Element, EPRE);

feature 2: under the condition that the first uplink transmission is multiplexed by the front adjacent uplink transmission and the rear adjacent uplink transmission at the same time, different adjacent uplink transmissions are distinguished through the offset between resource blocks RE;

feature 3: under the condition of frequency hopping enabling, the first uplink transmission is not used as an independent one-hop;

feature 4: under the condition that the first uplink transmission shares the DMRS with the previous adjacent uplink transmission, the last DMRS in the previous adjacent uplink transmission is not transmitted;

Feature 5: under the condition that the first uplink transmission shares the DMRS with the previous adjacent uplink transmission, transmitting the last DMRS in the previous adjacent uplink transmission on the first uplink transmission;

For the above features 4 and 5, in a specific application scenario, for example, if the DMRS is transmitted on the OFDM symbol of #3, #7, and #11 in the slot on the previous adjacent uplink transmission according to the configuration, the meaning that the last DMRS in the previous adjacent uplink transmission is not transmitted is: the corresponding DMRS on #11 is not transmitted; or the corresponding DMRS on #11 is put into the first uplink transmission to transmit.

Feature 6: under the condition that the first uplink transmission shares the DMRS with the rear adjacent uplink transmission, the first DMRS in the rear adjacent uplink transmission is not transmitted;

Feature 7: under the condition that the first uplink transmission shares the DMRS with the rear adjacent uplink transmission, transmitting the first DMRS in the rear adjacent uplink transmission on the first uplink transmission;

For the above features 6 and 7, in a specific application scenario, for example, if the DMRS is transmitted on the OFDM symbol of #3, #7, and #11 in the slot on the next-adjacent uplink transmission according to the configuration, the meaning of not transmitting the first DMRS in the next-adjacent uplink transmission means that: the corresponding DMRS on #3 is not transmitted; or the corresponding DMRS on #3 is put into the first uplink transmission to transmit.

Feature 8: in the generation of the initialization value of the DMRS sequence of the first uplink transmission, the used time slot sequence number is a first time slot sequence number;

Feature 9: in the generation of the initialization value of the DMRS sequence of the first uplink transmission, the number of the OFDM symbol in the used slot is the first OFDM symbol number.

It should be noted that, the front adjacent uplink transmission or the rear adjacent uplink transmission may be other actual repeated transmissions belonging to the same nominal repeated transmission as the first uplink transmission, or may be other uplink transmissions, such as PUSCH, PUCCH, and the like.

In the case where different adjacent uplink transmissions are distinguished by the offset between the resource blocks RE, the first uplink transmission has at least one of the following characteristics for the above characteristic 2:

1) Under the condition that the front adjacent uplink transmission and the rear adjacent uplink transmission of the first uplink transmission belong to the same repeated transmission, the power of the DMRS used by the first uplink transmission is the power of the EPRE corresponding to the code division multiplexing group index CDM group index configured by the repeated transmission;

2) In the case that the front adjacent uplink transmission and the rear adjacent uplink transmission of the first uplink transmission belong to the same repeated transmission, the CDM group index of the DMRS used in the first uplink transmission is the same as the CDM group index configured by the repeated transmission;

3) In the case that the front adjacent uplink transmission and the rear adjacent uplink transmission of the first uplink transmission belong to different repeated transmissions, and the front adjacent uplink transmission and the rear adjacent uplink transmission of the first uplink transmission each have different DMRS powers, the power of the DMRS used by the first uplink transmission is one of the following: the front adjacent uplink transmission and the rear adjacent uplink transmission are respectively configured with the maximum value of the power of the CDM group index corresponding to the EPRE; the front adjacent uplink transmission and the rear adjacent uplink transmission are respectively configured with the minimum value of the power of CDM group index corresponding to the EPRE; the front adjacent uplink transmission and the rear adjacent uplink transmission are respectively configured with the average value of the power of the CDM group index corresponding to the EPRE.

In addition, the first uplink transmission in the embodiment of the present application further has the following features:

Feature 10: in the case that the front adjacent uplink transmission and the rear adjacent uplink transmission of the first uplink transmission belong to different repeated transmissions, and the front adjacent uplink transmission and the rear adjacent uplink transmission of the first uplink transmission each have different DMRS powers, distinction by RE offset on the first uplink transmission is not allowed.

It should be noted that, in the above embodiment of the present application, the first slot sequence number is determined based on at least one of the following: the current time slot sequence number of the DMRS; time slot sequence numbers of adjacent time slots in the same DMRS bundling; the same nominal repeated transmission occupies the time slot serial number of the uplink transmission with larger OFDM symbol number; under the condition of frequency hopping enabling, the same time slot sequence number in the same hop; a time slot sequence number corresponding to the last DMRS in the previous adjacent uplink transmission of the first uplink transmission; the time slot sequence number corresponding to the first DMRS in the next adjacent uplink transmission of the first uplink transmission.

It should be noted that, in the above embodiment of the present application, the first OFDM symbol number is determined based on at least one of the following: the OFDM symbol number where the current DMRS is located; an OFDM symbol number corresponding to the last DMRS in the previous adjacent uplink transmission of the first uplink transmission; the OFDM symbol number corresponding to the first DMRS in the next adjacent uplink transmission of the first uplink transmission.

In an alternative implementation manner of the embodiment of the present application, in a case where the first uplink transmission only transmits data, the first uplink transmission has at least one of the following features:

Feature 11: the first uplink transmission can utilize the DMRS of the front adjacent uplink transmission or the rear adjacent uplink transmission to perform channel estimation;

Feature 12: the first uplink transmission is used as a transmission resource available for the front adjacent uplink transmission or the rear adjacent uplink transmission, and the modulation symbols of the front adjacent uplink transmission or the rear adjacent uplink transmission are mapped;

feature 13: the first uplink transmission independently transmits data;

Feature 14: in case of frequency hopping enabled, the first uplink transmission maintains the same frequency hopping position as the preceding or following adjacent uplink transmission.

The first uplink independent transmission data related to the above feature 13 refers to at least one of the following features:

1) Using the same redundancy version (Redundancy Version, RV) as the previous adjacent uplink transmission;

2) The same RV as the subsequent adjacent uplink transmission is used;

3) A fixed RV was used.

The fixed RV may be RV0 in a specific application scenario.

In an optional implementation manner of the embodiment of the present application, in a case where the transmission manner is simultaneous transmission of data and DMRS, the first uplink transmission has at least one of the following characteristics:

Feature 15: the first uplink transmission cannot enable transmission precoding;

Feature 16: generating an initialization value of a DMRS sequence used in the first uplink transmission based on a time slot sequence number where the first uplink transmission is located and an OFDM symbol number where the first uplink transmission is located;

Feature 17: the RV used for data transmission in the first uplink transmission meets the first RV;

feature 18: in case of frequency hopping enabled, the first uplink transmission may act as a separate hop.

Wherein the first RV includes at least one of:

1) RV determined by a first pre-configured RV cycle rule;

Wherein the first preconfigured RV round robin rule refers to determining the current actual repetition RV used for repetition type B based on actual repetition; the RV used by the current repetition is determined for repetition type A or other PUSCHs based on the number of the current repetition.

2) Using a fixed RV;

3) Using the same RV as the RV used by the first actual repeated transmission, wherein the first actual repeated transmission and the current repeated transmission belong to the same nominal repeated transmission, and the first actual repeated transmission is adjacent to the current repeated transmission;

4) And determining RV through a second pre-configured RV circulation rule, wherein the second pre-configured RV circulation rule is used for determining RV used by the current nominal repeated transmission as a whole.

In an optional implementation manner of the embodiment of the present application, the method of the embodiment of the present application may further include:

In step 206, in case the first uplink transmission precedes the first allocated OFDM symbol of the second uplink transmission, the preparation time t_proc_new is determined by one of the following:

the value of T_proc_new is equal to the value of T_proc, and the first sending OFDM symbol defined by T_proc_new is the first OFDM symbol of the first uplink transmission;

the value of t_proc_new is the result of the sum of t_proc and a target time interval, the target time interval being the time interval between the first OFDM symbol of the first uplink transmission and the first allocated OFDM symbol of the second uplink transmission.

The adjacent uplink transmission (the front adjacent uplink transmission or the rear adjacent uplink transmission) may be PUSCH transmission or PUCCH transmission.

The application is illustrated below in conjunction with specific implementations of embodiments of the application;

alternative embodiment 1:

As shown in fig. 3, if the transmission is configured PUSCH repetition type B, where s=8 and l=5 in TDRA, the slot boundaries of slot #1 and slot #2 divide nominal repetition #2 into actual repetition #2 and actual repetition #3, where actual repetition #2 actually occupies 1 OFDM symbol, and actual repetition #2 is omitted according to the existing protocol.

However, in the embodiment of the present application, the DMRS is transmitted by actual repetition in this case defined by a predefined rule (first information);

the following approaches each assume that the DMRS mapping type is type 1DMRS.

Mode 1-1: at this time actual repetition #2 transmits the DMRS, the slot sequence number used is 1, and the ofdm symbol number is 13 to generate a corresponding DMRS sequence for transmission; in practice, the DMRS may be used or shared by actual repetition #1 or actual repetition #3. From the receiving end, the DMRS sequence of actual repetition #2 transmission may be known; the related DMRS configuration information used for actual repetition #2 transmission is the same as the DMRS configuration information related to actual repetition #1 and actual repetition # 3.

A) When DMRS transmitted by actual repetition #2 is used by actual repetition #1 and actual repetition #3 simultaneously, the DMRS is reused as shown in fig. 4.

B) When DMRS of actual repetition #2 transmission is used by both actual repetition #1 and actual repetition #3, its DMRS distinguishes between DMRS used for actual repetition #1 and DMRS used for actual repetition #3 by introducing an RE offset, as shown in fig. 5.

Mode 1-2: when inter-slot hopping is enabled, actual repetition #2 transmission may not be a single hop and may then be the same hop as actual repetition #1, as shown in fig. 6.

When inter-repetition frequency hopping is enabled, actual repetition #2 transmission may not be a single hop and may then be the same hop as actual repetition #3 belonging to the same nominal repetition, as shown in fig. 7.

If the grant information (first information) according to the repetition indicates actual repetition in this case, DMRS and data are simultaneously transmitted.

Modes 1 to 3: actual repetition #2 can be used by actual repetition #1 to transmit DMRS and data simultaneously, as shown in fig. 8.

The DMRS transmitted by actual repetition #2 may use the same DMRS and configuration thereof in actual reptition #1; or, the DMRS sequence transmitted by actual repetition #2 determines the corresponding DMRS sequence according to the slot sequence number and the OFDM symbol number of actual repetition #2, and other relevant DMRS configurations are the same as those of the DMRS in actual reptition #1.

The REs remaining after the actual repetition #2 maps the DMRS can be used to transmit data in actual repetition #1, and used as additional transmission resources of actual repetition #1, and modulation symbols originally mapped to actual repetition #1 can be further mapped to more available resources through rate matching, so that the transmission code rate is reduced.

Alternative embodiment 2

As shown in fig. 9, assuming a configuration PUSCH repetition type B transmission in which s=9 and l=2 in TDRA, slot boundaries of slot #1 and slot #2 divide nominal repetition #3 into actual repetition #3 and actual repetition #4, and actually occupy 1 OFDM symbol, both actual repetition #3 and actual repetition #4 are omitted according to the existing protocol.

Mode 2-1: if actual repetition in this case is determined to be used for transmitting DMRS entirely according to the first information, further, actual repetition #3 may be used or shared by actual repetition #2, actual repetition #4 may be used or shared by actual repetition #5, and further, at this time, the location of DMRS in actual repetition #2 or actual repetition #5 may be optimized, as shown in fig. 10.

At this time, the DMRS transmitted in actual repetition #3 is the DMRS before optimization in actual reptition #2, and only the positions of the DMRS are optimized; or, the DMRS sequence transmitted by actual repetition #3 determines the corresponding DMRS sequence according to the slot sequence number and the OFDM symbol number of actual repetition #3, and other relevant DMRS configurations are the same as the DMRS before optimization in actual reptition #2.

The DMRS transmitted in actual repetition #4 is the DMRS before optimization in actual reptition #5, except that the position of the DMRS is optimized; or, the DMRS sequence transmitted by actual repetition #4 determines the corresponding DMRS sequence according to the slot sequence number and the OFDM symbol number where actual repetition #4 is located, and other relevant DMRS configurations are the same as the DMRS before optimization in actual reptition #5.

Mode 2-2: if it is determined that actual repetition parts in this case are used for transmitting PUSCH data and parts are used for transmitting DMRS according to the first information, that is: actual repetition #3 may be used as an additional transmission resource for actual repetition #2 and actual repetition #4 may be used or shared by actual repetition #5, as shown in fig. 11.

At this time, actual repetition #3 is used as actual repetition #2 additional transmission resources, and modulation symbols originally mapped to actual repetition #2 can be further mapped to more available resources through rate matching, so that the transmission code rate is reduced.

Mode 2-3: if actual repetition in this case is determined to be used for transmitting PUSCH data in its entirety according to the first information, actual repetition #3 may be used as an additional transmission resource for actual repetition #2, and actual repetition #4 may be used as an additional transmission resource for actual repetition #5, as shown in fig. 12.

Actual repetition #4 is used as actual repetition #5 extra transmission resource, and the modulation symbol originally mapped to actual repetition #5 can be further mapped to more available resources through rate matching, so that the transmission code rate is reduced.

As in the above modes 2-1, 2-2, 2-3, etc., if, when inter-slot hopping is enabled, neither actual repetition #3 nor actual repetition #4 transmissions can be used as a single hop, actual repetition #3 can be the same hop as actual repetition #2 belonging to the same slot, and actual repetition #4 can be the same hop as actual repetition #5 belonging to the same slot.

If inter-repetition frequency hopping is enabled, then actual repetition #3 and actual repetition #4 transmissions may not be used as a single hop, and therefore actual repetition #3 and actual repetition #2 transmissions may belong to the same hop; since actual repetition #4 is related to the transmission of actual repetition #5, it may belong to the same hop.

Alternative embodiment 3

As shown in fig. 13, assuming a configuration PUSCH repetition type B transmission in which s= 5,L =3 in TDRA, the inactive symbol in slot #1 would split nominal repetition #3 into actual repetition #3 and actual repetition #4, and actually occupy 1 OFDM symbol, both actual repetition #3 and actual repetition #4 would be omitted according to the existing protocol.

If the transmission of actual repetition #3 and actual repetition #4 in this case is determined based on the first information, the method is similar to the method 2-1, the method 2-2, and the method 2-3 in the alternative embodiment 2.

If both actual repetition #3 and actual repetition #4 transmissions cannot be used as a single hop when the inter-slot frequency hopping is enabled, actual repetition #3 may belong to the same hop as actual repetition #2 belonging to the same slot, and actual repetition #4 and actual repetition #5 do not belong to the same slot, where it is not desirable to configure actual repetition #4 transmissions to be related to actual repetition #5 transmissions (e.g., using DMRS or as actual repetition #5 available transmission resources), or to transmit omit actual repetition #4 according to the existing protocol; or to avoid this situation, it is not desirable to enable inter-slot hopping.

Alternative embodiment 4

As shown in fig. 14, assuming a configuration PUSCH repetition type B for transmission, where s=6 and l=4 in TDRA, the inactive symbol in slot #1 divides nominal repetition #2 into actual repetition #2 and actual repetition #3,actual repetition#3, which occupy 1 OFDM symbol, and according to the existing protocol, actual repetition #3 is omitted.

If the transmission of actual repetition #3 in this case is determined based on the first information, it is substantially similar to the case of alternative embodiment 1, except that:

1) When it is not desired to enable inter-slot hopping, the transmission of configuration actual repetition #3 is related to the transmission of actual repetition #4 (e.g., using DMRS or as actual repetition #5 available transmission resources); or if it is not desired that the transmission of configuration actual repetition #3 is related to the transmission of actual repetition #4, inter-slot hopping is not enabled.

2) The situation where the transmission actual repetition #3 is related to the transmission actual repetition #2 may be limited, such that the invalid symbol is used for DL, and no association is expected between the transmissions actual repetition #3 and actual repetition # 2.

Alternative embodiment 5

As shown in fig. 15, assuming a configuration PUSCH repetition type B for transmission, where s=7 and l=4 in TDRA, the inactive symbol in slot #1 and the slot boundary between slot #1 and slot #2 divide nominal repetition #2 into actual repetition #2, actual repetition #3 and actual repetition #4, each occupying 1 OFDM symbol, and according to the existing protocol, actual repetition #2, actual repetition #3 and actual repetition #4 are omitted.

If the transmission of actual repetition #2 and the transmission of actual repetition #1 in this case are determined based on the first information, the case of the transmission of actual repetition #2 and the transmission of actual repetition #3 in alternative embodiment 2 is substantially similar.

If the transmission of actual repetition #4 and the transmission of actual repetition #5 are determined based on the first information, the transmission of actual repetition #4 and the transmission of actual repetition #5 in alternative embodiment 2 are similar;

If it is determined that there is an association between the transmission of actual repetition #3 and the transmission of actual repetition #4 and the transmission of actual repetition #5 based on the first information, the following is the case:

Mode 5-1: as shown in fig. 16, actual repetition #3 and actual repetition #4 are used as additional transmission resources of actual repetition #5, and modulation symbols originally mapped to actual repetition #5 can be further mapped to more available resources through rate matching, so that a transmission code rate is reduced.

Mode 5-2: as shown in fig. 17, the DMRS sequence transmitted by actual repetition #3 determines a corresponding DMRS sequence according to the slot sequence number and the OFDM symbol number where actual repetition #3 is located, and other relevant DMRS configurations are the same as the DMRS relevant configurations in actual reptition #5;

Or, the DMRS sequence transmitted by actual repetition #3 determines the corresponding DMRS sequence according to the slot sequence number and the OFDM symbol number where the DMRS in actual repetition #5 is located, and other relevant DMRS configurations are the same as those in actual reptition #5.

Further, DMRS position optimization may be performed on DMRS transmitted by actual repetition #3 and DMRS transmitted by actual repetition #5, as shown in fig. 18.

At this time, the DMRS sequence transmitted in actual repetition # determines a corresponding DMRS sequence according to the current slot sequence and the OFDM symbol number where the optimized DMRS is located, and other relevant DMRS configurations remain unchanged.

Alternative embodiment 6

As shown in fig. 19, assuming PUSCH1 is configured for PUSCH repetition type B transmission, where s= 5,L =5 in TDRA, slot boundary of slot#1 and slot#2 would divide nominal repetition #2 into actual repetition #2 and actual repetition #3,actual repetition#3 to occupy 1 OFDM symbol, and actual repetition #3 would be omitted according to the existing protocol. And actual repetition #3 is the scheduled transmission of PUSCH 2.

If the scheduling grant of PUSCH2 contains the first information, it is determined that the transmission of actual repetition #3 is available for transmission with PUSCH, actual repetition #3 may be used as an additional transmission resource of PUSCH2 to transmit the corresponding DMRS or Data;

It can be seen that in this case as described above, the preparation time for PUSCH2 needs to be redefined (fig. 21) or a new preparation time is used (fig. 22), where fig. 20 is the preparation time t_proc of PUSCH2 for the existing protocol; fig. 21 redefines the preparation time t_proc_new1 of PUSCH2 in the above case, the value is equal to t_proc, but the first symbol of PUSCH2 is defined as the first symbol of actual repetition #3; fig. 22 shows that PUSCH2 uses a new preparation time t_proc_new2, the value is equal to t_proc+delta, and delta is actual repetition #3 which occupies the time corresponding to the OFDM symbol (including its CP).

According to the alternative implementation manner, orphan symbol(s) can be utilized to transmit uplink DMRS or data or control information, and additional DMRS or additional available transmission resources are provided for adjacent uplink transmission, so that demodulation reliability is improved and coverage capability is improved.

It should be noted that, in the uplink transmission method provided in the embodiment of the present application, the execution body may be an uplink transmission device, or a control module in the uplink transmission device for executing the uplink transmission method. In the embodiment of the present application, an uplink transmission device executes an uplink transmission method by using an uplink transmission device as an example, which describes the uplink transmission device provided by the embodiment of the present application.

As shown in fig. 23, the implementation of the present application further provides an uplink transmission apparatus, where the apparatus includes:

a determining module 22, configured to determine, according to the first information, a transmission mode of the first uplink transmission on the target OFDM symbol;

An execution module 24, configured to execute a first uplink transmission based on a transmission manner;

The time domain resource allocated for the second uplink transmission is L Orthogonal Frequency Division Multiplexing (OFDM) symbols, and the second uplink transmission comprises the first uplink transmission; the time domain resource used for the actual transmission in the first uplink transmission is L1 OFDM symbols in L; l is greater than L1, and L is a positive integer greater than 1.

By the device of the embodiment of the application, the transmission mode of the first uplink transmission on the L1 OFDM symbols of the time domain resource for actual transmission can be determined according to the first information, wherein the time domain resource for actual transmission can be a resource divided from nominal repeated transmission (nominal repetition) to actual repeated transmission (actual repetition) in a specific application scene. That is, the present application can determine the transmission mode of the actual repeated transmission, for example, perform DMRS or data transmission, and provide some additional resources for the adjacent repeated transmission or uplink transmission, so as to avoid the problem of resource waste caused by directly canceling the actual repeated transmission or the transmission that does not meet the transmission resource limitation in the prior art.

Optionally, the apparatus of the embodiment of the present application may further include: an acquisition module, configured to acquire first information by at least one of:

1) Predefining rules;

2) Uplink grant corresponding to the first uplink transmission;

4) Radio resource control, RRC, configuration;

5) The medium access control unit MAC CE indicates.

6) In an optional implementation manner of the embodiment of the present application, the first uplink transmission related to the embodiment of the present application includes at least one of the following:

4) Physical uplink control channel (Physical Uplink Control Channel, PUCCH).

Note that, in the existing protocol, for PUSCH repetition type A and PUCCH, as long as L1< L, the transmission resource is not available. In the present application, in order to make available the transmission resource in this case, a condition is set to L-N > =l1, where N is a higher-layer parameter configuration by the network side. Therefore, by means of the embodiment of the application, under the condition that L1 is smaller than L, unavailable resources can be changed into available resources, so that the resource utilization rate is improved.

1) Enabling a first uplink transmission;

3) The transmission mode is to only transmit data;

4) The transmission mode is to only transmit control information;

5) The transmission mode is to transmit data and DMRS simultaneously;

In an optional implementation manner of the embodiment of the present application, in a case where the transmission mode is data transmission only, the first uplink transmission has at least one of the following characteristics:

feature 13: the first uplink transmission independently transmits data;

2) The same RV as the subsequent adjacent uplink transmission is used;

3) A fixed RV was used.

The fixed RV may be RV0 in a specific application scenario.

In an optional implementation manner of the embodiment of the present application, in a case where the first uplink transmission simultaneously transmits data and DMRS, the first uplink transmission has at least one of the following characteristics:

Feature 15: the first uplink transmission cannot enable transmission precoding;

Feature 16: the initialization value of the DMRS sequence in the first uplink transmission is generated based on the time slot sequence number where the first uplink transmission is located and the OFDM symbol number where the first uplink transmission is located;

Wherein the first RV includes at least one of:

1) RV determined by a first pre-configured RV cycle rule;

Wherein the first preconfigured RV round robin rule refers to: if repetition type B, the statements actual repetition and nominal repetition only, so the RV currently used for actual repetition is determined in accordance with the RV cycle based on actual repetition. If repetition type A or other PUSCHs, the RV used by the current repetition is determined in RV cycles based on the number of the current repetition.

2) Using a fixed RV;

4) And determining RV through a second pre-configured RV circulation rule, wherein the second pre-configured RV circulation rule is that the RV used by the current nominal repeated transmission is determined for the current nominal repeated transmission as a whole.

Optionally, the apparatus of the embodiment of the present application may further include: a configuration module, configured to determine, in a case that the first uplink transmission is before the first allocated OFDM symbol of the second uplink transmission, a preparation time t_proc_new by one of:

1) The value of T_proc_new is equal to the value of T_proc, and the first sending OFDM symbol defined by T_proc_new is the first OFDM symbol of the first uplink transmission;

2) The value of t_proc_new is the result of the sum of t_proc and a target time interval, the target time interval being the time interval between the first OFDM symbol of the first uplink transmission and the first allocated OFDM symbol of the second uplink transmission.

The uplink transmission device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic device may be a mobile terminal or a non-mobile terminal. By way of example, mobile terminals may include, but are not limited to, the types of terminals 11 listed above, and non-mobile terminals may be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computer, PCs), televisions (TVs), teller machines, self-service machines, etc., and embodiments of the present application are not limited in particular.

The uplink transmission device provided by the embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

Optionally, as shown in fig. 24, the embodiment of the present application further provides a communication device 2400, including a processor 2401, a memory 2402, and a program or an instruction stored in the memory 2402 and capable of running on the processor 2401, where, for example, when the communication device 2400 is a terminal, the program or the instruction is executed by the processor 2401 to implement each process of the uplink transmission method embodiment, and the same technical effect can be achieved. When the communication device 2400 is a network side device, the program or the instruction implements each process of the uplink transmission method embodiment when executed by the processor 2401, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for determining a transmission mode of the first uplink transmission on the target Orthogonal Frequency Division Multiplexing (OFDM) symbol according to the first information, executing the first uplink transmission based on the transmission mode, and the communication interface is used for transmitting resources required by executing the first uplink transmission.

The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment are applicable to the terminal embodiment and can achieve the same technical effects. Specifically, fig. 25 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 100 includes, but is not limited to: at least some of the components of the radio frequency unit 101, the network module 102, the audio output unit 103, the input unit 104, the sensor 105, the display unit 106, the user input unit 107, the interface unit 108, the memory 109, and the processor 110.

Those skilled in the art will appreciate that the terminal 100 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically coupled to the processor 110 by a power management system to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 25 does not constitute a limitation of the terminal, and the terminal may include more or less components than those in fig. 25, or may combine some components, or may be arranged in different components, which will not be described again.

It should be appreciated that in embodiments of the present application, the input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, the graphics processor 1041 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 display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also referred to as a touch screen. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from a network side device, the radio frequency unit 101 processes the downlink data with the processor 110; in addition, the uplink data is sent to the network side equipment. Typically, the radio frequency unit 101 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.

Memory 109 may be used to store software programs or instructions and various data. The memory 109 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 109 may include a high-speed random access Memory, and may also include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically Erasable Programmable EPROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

Processor 110 may include one or more processing units; alternatively, the processor 110 may integrate an application processor that primarily processes operating systems, user interfaces, and applications or instructions, etc., with a modem processor that primarily processes wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The processor 110 is configured to determine, according to the first information, a transmission mode of the first uplink transmission on the target OFDM symbol, and perform the first uplink transmission based on the transmission mode; the time domain resources allocated for the second uplink transmission are L OFDM symbols, the second uplink transmission comprises the first uplink transmission, and the time domain resources used for the first uplink transmission for actual transmission are L1 OFDM symbols in L; l is greater than L1, and L is a positive integer greater than 1.

According to the terminal provided by the embodiment of the application, the transmission mode of the first uplink transmission on the L1 OFDM symbols of the time domain resource for actual transmission can be determined according to the first information, wherein the time domain resource for actual transmission can be a resource divided from nominal repeated transmission (nominal repetition) to actual repeated transmission (actual repetition) in a specific application scene. That is, the present application can determine the transmission mode of the actual repeated transmission, for example, perform DMRS or data transmission, and provide some additional resources for the adjacent repeated transmission or uplink transmission, so as to avoid the problem of resource waste caused by directly canceling the actual repeated transmission or the transmission that does not meet the transmission resource limitation in the prior art.

Optionally, the radio frequency unit 101 is configured to obtain the first information by using the terminal in at least one of the following manners:

predefining rules;

the uplink grant corresponding to the first uplink transmission;

UL grant corresponding to the second uplink transmission; wherein, the second uplink transmission has relevance with the first uplink transmission;

Radio resource control, RRC, configuration;

The medium access control unit MAC CE indicates.

Optionally, the processor 110 is further configured to determine, if the first uplink transmission precedes the first allocated OFDM symbol of the second uplink transmission, the preparation time t_proc_new by one of:

The value of t_proc_new is equal to the value of t_proc, and the first transmission OFDM symbol defined by t_proc_new is the first OFDM symbol of the first uplink transmission;

The value of t_proc_new is the result of the sum of t_proc and a target time interval between the first OFDM symbol of the first uplink transmission and the first allocated OFDM symbol of the second uplink transmission.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the uplink transmission method embodiment described above, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or instructions, the processes of the uplink transmission method embodiment can be realized, the same technical effects can be achieved, and the repetition is avoided, and the description is omitted here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. An uplink transmission method, comprising:

The terminal determines a transmission mode of the first uplink transmission according to the first information;

the terminal executes the first uplink transmission based on the transmission mode;

The time domain resources allocated for the second uplink transmission are L OFDM symbols, the second uplink transmission comprises the first uplink transmission, and the time domain resources used for the first uplink transmission for actual transmission are L1 OFDM symbols in L; l is greater than L1, and L is a positive integer greater than 1;

Wherein, the second uplink transmission has relevance with the first uplink transmission; the relevance refers to the sharing of transmission content between the first uplink transmission and the second uplink transmission.

2. The method according to claim 1, wherein the method further comprises:

The terminal obtains the first information by at least one of the following modes:

predefining rules;

the uplink grant corresponding to the first uplink transmission;

UL grant corresponding to the second uplink transmission;

Radio resource control, RRC, configuration;

The medium access control unit MAC CE indicates.

3. The method of claim 1, wherein the first uplink transmission comprises at least one of:

The physical uplink shared channel repeat transmission type APUSCH repetition type A;

the physical uplink shared channel repeat transmission type B PUSCH repetition type B;

transmission PUSCH TBoMS of the physical uplink shared channel across multiple slots;

physical uplink control channel PUCCH.

4. The method of claim 3, wherein the step of,

In case the first uplink transmission includes at least one of the PUSCH repetition type A and the PUCCH, L-N > =l1;

Wherein N is obtained by higher layer parameter configuration or by a predefined way.

5. A method according to claim 3, wherein l1=1 in the case where the first uplink transmission is the PUSCH repetition type B; wherein L1 is the number of OFDM symbols occupied by PUSCH transmission corresponding to actual repeated transmission actual repetition.

6. The method of claim 1, wherein the first information is used to indicate at least one of:

enabling the first uplink transmission;

The transmission mode is to only transmit demodulation reference signal (DMRS);

the transmission mode is to only transmit data;

the transmission mode is to only transmit control information;

the transmission mode is to simultaneously transmit data and the DMRS;

the transmission mode is to simultaneously transmit control information and the DMRS.

7. The method of claim 1, wherein the first information is used to indicate at least one of:

in the case where L1 is equal to 1, the transmission scheme includes one of: only DMRS, only data, only control information;

In the case where L1 is equal to 1, and the first uplink transmission is PUSCH and the waveform is cyclic prefix orthogonal frequency division multiplexing CP-OFDM, the transmission mode includes one of: transmitting only DMRS, transmitting only data, transmitting data and DMRS simultaneously;

In the case where L1 is equal to 1 and the first uplink transmission is physical uplink control channel format 2pucch format 2, the transmission mode includes one of the following: transmitting only the DMRS, transmitting only the control information, simultaneously transmitting the control information and the DMRS;

In the case where L1 is greater than 1, the transmission scheme includes one of: only data is transmitted, data and DMRS are simultaneously transmitted, control information and the DMRS are simultaneously transmitted.

8. The method according to claim 6 or 7, wherein, in case the transmission scheme is transmission-only DMRS, the first uplink transmission is characterized by at least one of:

the DMRS used for the first uplink transmission is the same as the DMRS used for the adjacent uplink transmission in one of the following: frequency domain resource allocation, antenna ports, total transmission power, energy EPRE of each resource unit;

When the first uplink transmission is multiplexed by the front adjacent uplink transmission and the rear adjacent uplink transmission at the same time, different adjacent uplink transmissions are distinguished through the offset between resource blocks RE;

in the case of frequency hopping enabled, the first uplink transmission is not as an independent one hop;

under the condition that the first uplink transmission shares the DMRS with the previous adjacent uplink transmission, the last DMRS in the previous adjacent uplink transmission is not transmitted;

transmitting a last DMRS in the front adjacent uplink transmission on the first uplink transmission under the condition that the first uplink transmission and the front adjacent uplink transmission share the DMRS;

under the condition that the first uplink transmission shares the DMRS with the rear adjacent uplink transmission, the first DMRS in the rear adjacent uplink transmission is not transmitted;

Transmitting a first DMRS in the back adjacent uplink transmission on the first uplink transmission under the condition that the first uplink transmission and the back adjacent uplink transmission share the DMRS;

In the generation of the initialization value of the DMRS sequence of the first uplink transmission, the time slot sequence number used is the first time slot sequence number;

in the initialization value generation of the DMRS sequence of the first uplink transmission, the number of the OFDM symbol in the used slot is the first OFDM symbol number.

9. The method according to claim 8, wherein in case of distinguishing different adjacent uplink transmissions by an offset between resource blocks REs, the first uplink transmission is characterized by at least one of:

in the case that the front adjacent uplink transmission and the rear adjacent uplink transmission of the first uplink transmission belong to the same repeated transmission, the power of the DMRS used in the first uplink transmission is the power of the EPRE corresponding to the CDM group index of the code division multiplexing configured for repeated transmission;

in the case that the front adjacent uplink transmission and the rear adjacent uplink transmission of the first uplink transmission belong to the same repeated transmission, CDM group index of the DMRS used in the first uplink transmission is the same as CDM group index configured by repeated transmission;

in the case that the front adjacent uplink transmission and the rear adjacent uplink transmission of the first uplink transmission belong to different repeated transmissions, and the front adjacent uplink transmission and the rear adjacent uplink transmission of the first uplink transmission each have different DMRS powers, the power of the DMRS used by the first uplink transmission is one of the following:

the front adjacent uplink transmission and the rear adjacent uplink transmission are respectively configured with the maximum value of the power of the CDM group index corresponding to the EPRE;

The front adjacent uplink transmission and the rear adjacent uplink transmission are respectively configured with the minimum value of the power of CDM group index corresponding to EPRE;

and the front adjacent uplink transmission and the rear adjacent uplink transmission are respectively configured with average values of power of EPRE corresponding to CDM group index.

10. The method of claim 8, wherein the first uplink transmission is characterized by:

In the case that the front adjacent uplink transmission and the rear adjacent uplink transmission of the first uplink transmission belong to different repeated transmissions, and the front adjacent uplink transmission and the rear adjacent uplink transmission of the first uplink transmission each have different DMRS powers, distinction by RE offset on the first uplink transmission is not allowed.

11. The method of claim 9, wherein the first slot sequence number is determined based on at least one of:

The current time slot sequence number of the DMRS;

Time slot sequence numbers of adjacent time slots in the same DMRS bundling;

The same nominal repeated transmission occupies the time slot serial number of the uplink transmission with larger OFDM symbol number;

Under the condition of frequency hopping enabling, the same time slot sequence number in the same hop;

A time slot sequence number corresponding to the last DMRS in the previous adjacent uplink transmission of the first uplink transmission;

and the time slot sequence number corresponding to the first DMRS in the next adjacent uplink transmission of the first uplink transmission.

12. The method of claim 8, wherein the first OFDM symbol number is determined based on at least one of:

The OFDM symbol number where the current DMRS is located;

an OFDM symbol number corresponding to the last DMRS in the previous adjacent uplink transmission of the first uplink transmission;

and the OFDM symbol number corresponding to the first DMRS in the next adjacent uplink transmission of the first uplink transmission.

13. The method according to claim 6 or 7, wherein, in case the transmission scheme is data only, the first uplink transmission is characterized by at least one of:

The first uplink transmission can utilize the DMRS of the front adjacent uplink transmission or the rear adjacent uplink transmission to perform channel estimation;

the first uplink transmission is used as a transmission resource available for the front adjacent uplink transmission or the rear adjacent uplink transmission, and the modulation symbols of the front adjacent uplink transmission or the rear adjacent uplink transmission are mapped;

the first uplink transmission independently transmits data;

In the case of frequency hopping enabled, the first uplink transmission maintains the same frequency hopping position as the preceding or following adjacent uplink transmission.

14. The method of claim 13, wherein the first uplink transmission independent transmission data is characterized by at least one of:

the same redundancy version RV as the previous adjacent uplink transmission is used;

The same RV as the subsequent adjacent uplink transmission is used;

A fixed RV was used.

15. The method of claim 6, wherein the first uplink transmission is characterized by at least one of:

The first uplink transmission cannot enable transmission precoding;

generating an initialization value of a DMRS sequence used for the first uplink transmission based on a time slot sequence number where the first uplink transmission is located and an OFDM symbol number where the first uplink transmission is located;

The RV used for data transmission in the first uplink transmission meets the first RV;

in case of frequency hopping enabled, the first uplink transmission may act as a separate hop.

16. The method of claim 15, wherein the first RV comprises at least one of:

RV determined by a first pre-configured RV cycle rule;

using a fixed RV;

using the same RV as the RV used by the first actual repeated transmission, wherein the first actual repeated transmission and the current repeated transmission belong to the same nominal repeated transmission, and the first actual repeated transmission is adjacent to the current repeated transmission;

and determining RV through a second pre-configured RV circulation rule, wherein the second pre-configured RV circulation rule is that the RV used by the current nominal repeated transmission is determined for the current nominal repeated transmission as a whole.

17. The method according to claim 1, wherein the method further comprises:

In case the first uplink transmission precedes the first allocated OFDM symbol of the second uplink transmission, the preparation time t_proc_new is determined by one of:

18. An uplink transmission apparatus, comprising:

the determining module is used for determining a transmission mode of the first uplink transmission according to the first information;

the execution module is used for executing the first uplink transmission based on the transmission mode;

The time domain resources allocated for the second uplink transmission are L Orthogonal Frequency Division Multiplexing (OFDM) symbols, and the second uplink transmission comprises the first uplink transmission; the time domain resource used for actual transmission in the first uplink transmission is L1 OFDM symbols in L; l is greater than L1, and L is a positive integer greater than 1;

19. The apparatus of claim 18, wherein the apparatus further comprises:

An acquisition module, configured to acquire the first information by at least one of:

predefining rules;

the uplink grant corresponding to the first uplink transmission;

UL grant corresponding to the second uplink transmission;

Radio resource control, RRC, configuration;

The medium access control unit MAC CE indicates.

20. The apparatus of claim 18, wherein the first uplink transmission comprises at least one of:

physical uplink control channel PUCCH.

21. The apparatus of claim 20, wherein the device comprises a plurality of sensors,

22. The apparatus of claim 20, wherein l1=1 if the first uplink transmission is the PUSCH repetition type B; wherein L1 is the number of OFDM symbols occupied by PUSCH transmission corresponding to actual repeated transmission actual repetition.

23. The apparatus of claim 18, wherein the first information is used to indicate at least one of:

enabling the first uplink transmission;

The transmission mode is to only transmit demodulation reference signal (DMRS);

the transmission mode is to only transmit data;

the transmission mode is to only transmit control information;

the transmission mode is to simultaneously transmit data and the DMRS;

24. The apparatus of claim 18, wherein the first information is used to indicate at least one of:

In the case where L1 is equal to 1 and the first uplink transmission is physical uplink control channel format 2pucch format 2, the transmission mode includes one of the following: transmitting only DMRS, transmitting only control information, transmitting control information and DMRS simultaneously;

in the case where L1 is greater than 1, the transmission scheme includes one of: transmitting only data, simultaneously transmitting data and DMRS, simultaneously transmitting the control information and the DMRS.

25. The apparatus according to claim 23 or 24, wherein, in case the transmission is a transmission-only DMRS, the first uplink transmission is characterized by at least one of:

26. The apparatus of claim 25, wherein the first uplink transmission is characterized by at least one of:

27. The apparatus of claim 25, wherein the first uplink transmission is characterized by:

28. The apparatus of claim 26, wherein the first slot sequence number is determined based on at least one of:

The current time slot sequence number of the DMRS;

Time slot sequence numbers of adjacent time slots in the same DMRS bundling;

29. The apparatus of claim 25, wherein the first OFDM symbol number is determined based on at least one of:

The OFDM symbol number where the current DMRS is located;

30. The apparatus according to claim 23 or 24, wherein, in the case where the transmission scheme is data only transmission, the first uplink transmission is characterized by at least one of:

The first uplink transmission independently transmits the data;

31. The apparatus of claim 30, wherein the first uplink transmission independently transmitting the data is characterized by at least one of:

The same RV as the subsequent adjacent uplink transmission is used;

A fixed RV was used.

32. The apparatus of claim 23, wherein the first uplink transmission is characterized by at least one of:

The first uplink transmission cannot enable transmission precoding;

Generating an initialization value of the DMRS sequence in the first uplink transmission based on a time slot sequence number where the first uplink transmission is located and an OFDM symbol number where the first uplink transmission is located;

33. The apparatus of claim 32, wherein the first RV comprises at least one of:

RV determined by a first pre-configured RV cycle rule;

using a fixed RV;

34. The apparatus of claim 18, wherein the apparatus further comprises:

a configuration module, configured to determine, in a case where the first uplink transmission is before a first allocated OFDM symbol of the second uplink transmission, a preparation time t_proc_new by one of:

35. A terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the steps of the uplink transmission method according to any one of claims 1 to 17.

36. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the uplink transmission method according to any one of claims 1 to 17.