CN115276929A

CN115276929A - Transmission method, device and system

Info

Publication number: CN115276929A
Application number: CN202110487802.XA
Authority: CN
Inventors: 余雅威; 颜矛; 郭志恒
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-11-01

Abstract

The application discloses a transmission method, a device and a system, which are used for providing a method for improving the accuracy of channel estimation. The method comprises the following steps: the terminal equipment determines N frequency domain positions according to the frequency domain starting position of the uplink transmission resource unit in the first time unit of the time unit and the quantity of the resource units distributed by the time unit for uplink transmission in one time unit, wherein N is a natural number greater than 1, and the frequency domain positions comprise the frequency domain starting position and the frequency domain ending position; the terminal equipment carries out uplink transmission to the network equipment according to the N frequency domain positions, the N time units comprise a first time unit and a second time unit, the frequency domain ending position of the uplink transmission in the first time unit and the frequency domain starting position of the uplink transmission in the second time unit are continuous in the frequency domain, and the first time unit is adjacent to the second time unit. The method can ensure the transmission of N continuous time units to be continuous in the frequency domain, effectively improve the performance of channel estimation and improve the performance of transmission.

Description

Transmission method, device and system

Technical Field

The present application relates to the field of communications technologies, and in particular, to a transmission method, apparatus, and system.

Background

A demodulation reference signal (DMRS) is defined in a current new radio access technology (NR) protocol for channel estimation. In order to ensure transmission performance, currently, a manner of performing joint channel estimation by using DMRSs of multiple slots is proposed in NR R17 to enhance accuracy of channel estimation and improve demodulation and decoding performance of uplink transmission.

Currently, when one Transport Block (TB) is carried in multiple time units, the Transport Block Size (TBs) cannot exceed the TBs of NR R16 when one TB is carried in one time unit, so that when the number of time units occupied by a trans-slot over-slot transport (TBoMS) is larger, the number of Resource Blocks (RBs) that can be configured correspondingly is smaller. The larger the number of RBs, the better the filtering and denoising performance of the frequency domain, while the smaller the number of RBs in the TBoMS, the insufficient accuracy of channel estimation may result. How to improve the accuracy of channel estimation of the TBoMS is an urgent problem to be solved.

Disclosure of Invention

The application provides a transmission method, which improves the accuracy of channel estimation by ensuring the continuity of a transmission frequency domain.

In a first aspect, an execution main body of the method may be a terminal device, or a chip applied to the terminal device, or a unit or a module used for executing a corresponding function in the terminal device, and the following description will take the execution main body as the terminal device as an example. The method comprises the following steps:

determining N frequency domain positions according to a frequency domain starting position of an uplink transmission resource unit in a first time unit of a time unit and the number of resource units allocated to uplink transmission in the time unit, wherein the N frequency domain positions comprise the uplink transmission frequency domain position of each time unit in the continuous N time units, N is a natural number greater than 1, and the frequency domain positions comprise a frequency domain starting position and a frequency domain ending position; and performing uplink transmission to the network device according to the N frequency domain positions, where the N time units include a first time unit and a second time unit, a frequency domain end position of the uplink transmission in the first time unit and a frequency domain start position of the uplink transmission in the second time unit are consecutive in a frequency domain, and the first time unit is adjacent to the second time unit.

Based on the above scheme, in the embodiment of the present application, when performing uplink transmission, the terminal device may perform resource unit configuration based on the determined N continuous time units, so that uplink transmission of the N continuous time units is continuous in a frequency domain, and phase continuity required by joint channel estimation is ensured, thereby effectively improving accuracy of channel estimation and enhancing performance of transmission.

As a possible implementation method, the first time unit is a time unit before the second time unit, or the first time unit is a time unit after the second time unit.

As a possible implementation method, a difference between the index of the resource unit corresponding to the frequency domain end position of the uplink transmission in the first time unit and the index of the resource unit corresponding to the frequency domain start position of the uplink transmission in the second time unit is 1.

As a possible implementation method, the method further includes: the number of time units N is determined.

As a possible implementation method, determining the number N of time units according to the number of resource units allocated for uplink transmission in a time unit; alternatively, the method further includes receiving first information from a network device, where the first information is used to indicate the number N of the time units.

As a possible implementation method, determining the number N of time units according to a first threshold and the number of resource units allocated for uplink transmission in a time unit; the product of the number N of the time units and the number of the resource units allocated for uplink transmission in one time unit is not less than a first threshold.

As a possible implementation, the first threshold is predefined; or the first threshold is indicated by the network device by signaling; or the first threshold is reported to the network equipment by the terminal equipment.

As a possible implementation method, the number N of the time unit is determined according to a delay spread value and the number of resource units allocated to uplink transmission in a time unit, where the delay spread value is used to indicate a delay difference between a first path and a last path in a signal transceiving process.

As a possible implementation method, the method further includes: sending the second information to the network equipment; the second information is used for indicating at least one of the following: the number of time units N; delay spread value is taken; and/or sending the third information to the network device; the third information is used for indicating the maximum number L of time units capable of maintaining phase continuity; and the time delay expansion value is used for representing the time delay difference value of the first path and the last path in the process of receiving and transmitting signals.

As a possible implementation method, N frequency domain starting positions are determined according to a frequency domain starting position of a resource unit of uplink transmission in a first time unit, a number of resource units allocated for uplink transmission in a time unit, and a frequency hopping offset value.

As a possible implementation method, the number N of time units, the number of resource units allocated for uplink transmission in a time unit, and the N frequency domain starting positions satisfy the following formula:

RB_start(n)＝RB_start(n-1)+n_PRB,n＝2,3,…,N；

wherein n represents the nth time unit, the RB_start(n) denotes the frequency domain starting position of the resource unit for uplink transmission on the nth time unit, n_PRBRepresenting the number of resource units allocated for uplink transmission over a time unit.

As a possible implementation method, when uplink transmission in N time units is repeated transmission, the number N of time units, the number of resource units allocated for uplink transmission in one time unit, and the N frequency domain starting positions satisfy the following formula:

RB_start(n)＝RB_start+(n-1)n_PRB,n＝2,3,…,N；

wherein RB_startRepresents N number ofA frequency domain starting position of a resource unit for uplink transmission on a first one of the time units.

wherein, the RB_startIndicating the frequency domain starting position of the resource unit of uplink transmission on the first time unit in N time units, N indicating the nth time unit, N_PRBExpressed as the number of resource units allocated for uplink transmission over one time unit,

and the frequency domain deviation value of the ith frequency hopping position point relative to the first uplink transmission is shown, wherein I is the total number of the frequency hopping position points.

As a possible implementation method, the method further includes:

the hopping offset value is the same every N time units.

In a second aspect, the present application provides an uplink transmission method, where an execution main body of the method may be a network device, or a chip applied in the network device, or a unit or a module used for executing a corresponding function in the network device, and the execution main body is a terminal device, which is described below as an example. The following description will be given taking as an example that the execution subject is a network device. The method comprises the following steps:

determining N frequency domain starting positions according to the frequency domain starting position of the uplink transmission resource unit in the first time unit and the quantity of the resource units allocated for uplink transmission in one time unit, wherein the N frequency domain starting positions comprise the frequency domain starting position of the uplink transmission of each time unit in the continuous N time units, and N is a natural number greater than 1; and receiving uplink transmission sent by the terminal device according to the N frequency domain starting positions, wherein the N time units include the first time unit and a second time unit, a frequency domain ending position of the uplink transmission in the first time unit and a frequency domain starting position of the uplink transmission in the second time unit are continuous in a frequency domain, and the first time unit is adjacent to the second time unit.

Based on the above scheme, in the embodiment of the present application, when performing uplink transmission, the terminal device may configure the resource unit based on the determined N continuous time units, and may enable uplink transmission of the N continuous time units to be continuous in a frequency domain, so as to ensure phase continuity required by joint channel estimation, thereby effectively improving accuracy of channel estimation and enhancing transmission performance.

As a possible implementation method, the number N of time units is determined according to the number of resource units allocated for uplink transmission in one time unit.

As a possible implementation, the first threshold is predefined; or the first threshold is reported by the terminal equipment; or the first threshold value is indicated to the terminal equipment by network equipment.

As a possible implementation method, determining the number N of time units according to a delay spread value and the number of resource units allocated for uplink transmission in a time unit; the delay spread value is used for representing the delay difference value of the first path and the last path in the process of receiving and transmitting signals.

As a possible implementation method, the method further includes: receiving second information from the terminal equipment, wherein the second information is used for indicating at least one of the following items: the number of time units N; and (4) taking a delay spread value.

As a possible implementation method, the method further includes: third information is received from the terminal device, the third information indicating a maximum number of time units L capable of maintaining phase continuity.

As a possible implementation method, the N frequency domain starting positions are determined according to the frequency domain starting position of the resource unit of the uplink transmission in the first time unit, the number of resource units allocated for the uplink transmission in one time unit, and the frequency hopping offset value.

RB_start(n)＝RB_start(n-1)+n_PRB,n＝2,3,…,N；

wherein n represents the nth time unit, the RB_start(n) denotes the frequency domain starting position of the resource unit for uplink transmission on the nth time unit, n_PRBRepresenting the number of resource units allocated for uplink transmission over one time unit.

RB_start(n)＝RB_start+(n-1)n_PRB,n＝2,3,…,N；

wherein RB_startIndicating the frequency domain starting position of the resource unit of the uplink transmission on the first time unit of the N time units.

and the frequency domain deviation value of the ith frequency hopping position point relative to the first uplink transmission is shown, and I is the total number of the frequency hopping position points.

As a possible implementation method, the method further includes:

the hopping offset values used are the same for every N time units.

In a third aspect, the present application provides a downlink transmission method, where an execution main body of the method may be a terminal device, may also be a chip applied in the terminal device, and may also be a unit or a module used for executing a corresponding function in the terminal device, and the following description takes the execution main body as the terminal device as an example. The method comprises the following steps:

determining N frequency domain positions according to a frequency domain starting position of a downlink transmission resource unit in a first time unit of a time unit and the number of resource units allocated to downlink transmission in the time unit, wherein the N frequency domain positions comprise the downlink transmission frequency domain position of each time unit in the N continuous time units, N is a natural number greater than 1, and the frequency domain positions comprise a frequency domain starting position and a frequency domain ending position; and performing downlink transmission to the network device according to the N frequency domain positions, wherein the N time units include a first time unit and a second time unit, a frequency domain ending position of the downlink transmission in the first time unit and a frequency domain starting position of the downlink transmission in the second time unit are continuous in a frequency domain, and the first time unit is adjacent to the second time unit.

Based on the above scheme, in the embodiment of the present application, when performing downlink transmission, the terminal device may configure the resource unit based on the determined N continuous time units, and may enable uplink transmission of the N continuous time units to be continuous in a frequency domain, so as to ensure phase continuity required by joint channel estimation, thereby effectively improving accuracy of channel estimation and enhancing transmission performance.

As a possible implementation method, determining the number N of time units according to the number of resource units allocated for downlink transmission in a time unit; alternatively, the method further includes receiving first information from a network device, where the first information is used to indicate the number N of the time units.

As a possible implementation method, determining the number N of time units according to a first threshold and the number of resource units allocated for downlink transmission in a time unit; wherein the product of the number N of the time units and the number of the resource units allocated for the downlink transmission in one time unit is not less than a first threshold.

As a possible implementation method, the number N of the time unit is determined according to a delay spread value and the number of resource units allocated to downlink transmission in a time unit, where the delay spread value is used to indicate a delay difference between a first path and a last path in a signal transceiving process.

As a possible implementation method, the method further includes: sending the second information to the network equipment; the second information is used for indicating at least one of the following: the number of time units N; delay spread values; and/or sending the third information to the network device; the third information is used for indicating the maximum number L of time units capable of maintaining phase continuity; the delay spread value is used for representing the delay difference value of a first path and a last path in the process of receiving and transmitting signals.

As a possible implementation method, N frequency domain starting positions are determined according to a frequency domain starting position of a resource unit of downlink transmission in a first time unit, a number of resource units allocated for downlink transmission in a time unit, and a frequency hopping offset value.

As a possible implementation method, the number N of time units, the number of resource units allocated for downlink transmission in a time unit, and the starting positions of the N frequency domains satisfy the following formula:

RB_start(n)＝RB_start(n-1)+n_PRB,n＝2,3,…,N；

wherein n represents the nth time unit, the RB_start(n) denotes the frequency domain starting position of the resource unit for downlink transmission on the nth time unit, n_PRBWhich represents the number of resource units allocated for downlink transmission over one time unit.

As a possible implementation method, when downlink transmission in N time units is repeated transmission, the number N of time units, the number of resource units allocated for downlink transmission in one time unit, and the N frequency domain starting positions satisfy the following formula:

RB_start(n)＝RB_start+(n-1)n_PRB,n＝2,3,…,N；

wherein RB_startIndicating the frequency domain starting position of the resource unit of the downlink transmission in the first time unit of the N time units.

As a possible implementation method, the number N of time units, the number of resource units allocated for downlink transmission in a time unit, and the N frequency domain starting positions satisfy the following formula:

wherein, the RB_startIndicating the frequency domain starting position of the resource unit of the downlink transmission on the first time unit in N time units, N indicating the nth time unit, N_PRBExpressed as the number of resource units, RBs, allocated for downlink transmission over one time unit_offsetiAnd the frequency domain deviation value of the ith frequency hopping position point relative to the first downlink transmission is shown, wherein I is the total number of the frequency hopping position points.

As a possible implementation method, the method further includes:

the hopping offset value is the same every N time units.

In a fourth aspect, the present application provides a downlink transmission method, where an execution main body of the method may be a network device, may also be a chip applied in the network device, and may also be a unit or a module used for executing a corresponding function in the network device, and the execution main body is a network device as an example for description below. The method comprises the following steps:

determining N frequency domain starting positions according to the frequency domain starting position of the downlink transmission resource unit in the first time unit and the quantity of the resource units allocated for the downlink transmission in one time unit, wherein the N frequency domain starting positions comprise the frequency domain starting position of the downlink transmission in each time unit of the continuous N time units, and N is a natural number greater than 1; receiving downlink transmission sent by a terminal device according to the N frequency domain starting positions, where the N time units include the first time unit and a second time unit, a frequency domain ending position of the downlink transmission in the first time unit and a frequency domain starting position of the downlink transmission in the second time unit are continuous in a frequency domain, and the first time unit is adjacent to the second time unit.

Based on the above scheme, in the embodiment of the present application, when performing downlink transmission, the terminal device may configure the resource unit based on the determined N continuous time units, and may enable downlink transmission of the N continuous time units to be continuous in a frequency domain, so as to ensure phase continuity required by joint channel estimation, thereby effectively improving accuracy of channel estimation and improving transmission performance.

As a possible implementation method, a difference between the index of the resource unit corresponding to the frequency domain end position of the downlink transmission in the first time unit and the index of the resource unit corresponding to the frequency domain start position of the downlink transmission in the second time unit is 1.

As a possible implementation method, the number N of time units is determined according to the number of resource units allocated for downlink transmission in a time unit.

As a possible implementation method, determining the number N of time units according to a first threshold and the number of resource units allocated for downlink transmission in a time unit; the product of the number N of the time units and the number of the resource units allocated for downlink transmission in one time unit is not less than a first threshold.

As a possible implementation method, determining the number N of time units according to a delay spread value and the number of resource units allocated for downlink transmission in a time unit; the delay spread value is used for representing the delay difference value of the first path and the last path in the process of receiving and transmitting signals.

As a possible implementation method, the N frequency domain starting positions are determined according to the frequency domain starting position of the resource unit for uplink transmission in the first time unit, the number of resource units allocated for downlink transmission in one time unit, and the frequency hopping offset value.

RB_start(n)＝RB_start(n-1)+n_PRB,n＝2,3,…,N；

wherein n represents the nth time unit, the RB_start(n) represents the resources of the downlink transmission in the nth time unitFrequency domain starting position of source unit, n_PRBRepresenting the number of resource units allocated for downlink transmission over a time unit.

RB_start(n)＝RB_start+(n-1)n_PRB,n＝2,3,…,N；

wherein, the RB_startIndicating the frequency domain starting position of the resource unit of the downlink transmission on the first time unit in N time units, N indicating the nth time unit, N_PRBExpressed as the number of resource units allocated for downlink transmission over a time unit,

and the frequency domain deviation value of the ith frequency hopping position point relative to the first downlink transmission is shown, wherein I is the total number of the frequency hopping position points.

As a possible implementation method, the method further includes:

the hopping offset values used are the same for every N time units.

In a fifth aspect, an embodiment of the present application provides a transmission apparatus, where the apparatus may be a terminal device, and may also be a chip for the terminal device. The apparatus having means for implementing any of the first or third aspects described above; or to perform any of the above described methods of any possible implementation of the first or third aspect. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a sixth aspect, an embodiment of the present application provides a transmission apparatus, where the apparatus may be a network device and may also be a chip for the network device. The apparatus having means for carrying out any of the second or fourth aspects described above; or performing any of the methods of any possible implementation manners of the second or fourth aspects described above. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a seventh aspect, this application embodiment further provides a computer-readable storage medium, which stores instructions that, when executed on a computer, cause the processor to perform any one of the first to fourth aspects; or to perform any of the methods in any possible implementation manners of the first to fourth aspects described above.

In an eighth aspect, embodiments of the present application further provide a computer program product, where the computer program product includes a computer program that, when executed, causes a processor to execute any one of the first to fourth aspects; or perform any of the methods in any possible implementation manners of the first to fourth aspects described above.

In a ninth aspect, embodiments of the present application further provide a chip system, which includes a processor and a memory. The memory is used for storing a computer program; the processor is used for calling and running the computer program from the memory so that the device provided with the chip system executes any one of the first aspect to the fourth aspect; or perform any of the methods in any possible implementation manners of the first to fourth aspects described above.

In a tenth aspect, an embodiment of the present application further provides a transmission system, which includes at least one terminal device and at least one network device.

Drawings

Fig. 1 is a schematic diagram of a transmission system provided in the present application;

fig. 2 is a schematic flow chart of a first transmission method provided in the present application;

FIG. 3 is a schematic diagram of a first time unit and a second time unit location provided herein;

FIG. 4 is a schematic diagram of a second first time unit and a second time unit location provided herein;

FIG. 5 is a schematic diagram of a first frequency domain location configuration provided in the present application;

fig. 6 is a schematic diagram of a second frequency domain location configuration provided in the present application;

fig. 7 is a schematic diagram of a third frequency domain location configuration provided in the present application;

FIG. 8 is a schematic diagram of a fourth frequency domain location configuration provided in the present application;

FIG. 9 is a schematic diagram of a fifth frequency domain location configuration provided in the present application;

FIG. 10 is a schematic diagram of a sixth frequency domain location configuration provided in the present application;

FIG. 11 is a schematic diagram of a seventh frequency domain location configuration provided in the present application;

fig. 12 is a schematic diagram of an eighth frequency-domain location configuration provided in the present application;

fig. 13 is a schematic diagram of a ninth frequency-domain position configuration provided in the present application;

fig. 14 is a schematic flow chart of a second transmission method provided in the present application;

fig. 15 is a schematic structural diagram of a first transmission device provided in the present application;

fig. 16 is a schematic structural diagram of a second transmission device provided in the present application.

Detailed Description

In order to more clearly and completely describe the technical solution of the present application, the following description is made with reference to the accompanying drawings.

The embodiment of the application provides a transmission method. The technical scheme of the embodiment of the application can be applied to various communication systems, for example: long Term Evolution (LTE) systems, worldwide Interoperability for Microwave Access (WiMAX) communication systems, future fifth generation (5g) systems, such as new radio access technology (NR), and future communication systems, such as 6G systems, etc.

The technical scheme provided by the embodiment of the application can be applied to various communication scenes, for example, one or more of the following communication scenes: eMBB, URLLC, mtc, device-to-device (D2D) communication, vehicle-to-vehicle (V2X) communication, vehicle-to-vehicle (V2V) communication, and internet of things (IoT), etc.

Taking a 5G system (may also be referred to as a New Radio system) as an example, specifically, in order to effectively improve accuracy of channel estimation, when performing communication transmission, the present application determines the number N of time units that are continuously performing communication transmission, so as to perform RB configuration based on the number N of time units that are continuously performing communication transmission, thereby ensuring that RB configurations of transmissions of N continuous time units are different but continuous, and improving performance of transmission.

For the convenience of understanding the embodiments of the present application, a communication system to which the embodiments of the present application are applied will be first described in detail by taking the communication system shown in fig. 1 as an example. As shown in fig. 1, the communication system includes a terminal device 100 and a network device 110.

Terminal device 100 is a device that provides voice and/or data connectivity to a user and may also be referred to as a User Equipment (UE), an access terminal device, a subscriber unit, a subscriber station, a mobile station, a remote terminal device, a mobile device, a user terminal device, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self driving (self driving), a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety, a wireless terminal device in city (city), a wireless terminal device in smart home (smart home), and the like.

The network device 110, for example, includes AN Access Network (AN) device, a Radio Access Network (RAN) device, and AN access network device, for example, a base station (e.g., access point), may refer to a device in the access network that communicates with a wireless terminal device through one or more cells over AN air interface. The base station may be configured to interconvert received air frames and Internet Protocol (IP) packets as a router between the terminal device and the rest of the access network, which may include an IP network. The access network device may also coordinate attribute management for the air interface. For example, the network device may include an evolved Node B (NodeB or eNB or e-NodeB) in a Long Term Evolution (LTE) system or an advanced long term evolution (LTE-a), or may also include a next generation Node B (gNB) or a next generation evolved Node B (gNB) in a fifth generation mobile communication technology (the 5th generation, 5g) new air interface (NR) system: enhanced next generation base stations; the system may also include a Centralized Unit (CU) and a Distributed Unit (DU) in a Cloud RAN (Cloud RAN) system, or may also include a relay device, which is not limited in the embodiment of the present application.

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems. It should be understood that fig. 1 is a simplified schematic diagram of an example for ease of understanding only, and that other network devices or other terminal devices may also be included in the communication system, which are not shown in fig. 1.

The following first gives definitions of technical terms that may appear in the embodiments of the present application for ease of understanding.

1) The frequency hopping refers to that a sending end transmits a plurality of signals by using resources in different frequency domain positions, because when the frequency domain positions of the resources for sending the plurality of signals are the same, if the channel fading corresponding to the same frequency domain position is very severe, the plurality of signals are sent by severe channel fading and cannot be correctly received by a receiving end, so that the performance of sending the plurality of signals is poor. Therefore, the transmitting end transmits a plurality of signals on resources at different frequency domain positions in a hopping mode, and the receiving end can perform channel estimation and demodulation by using the signal transmission with less fading in the plurality of signal transmissions, thereby improving the transmission performance.

2) Delay spread, during multi-path propagation, delay spread is an important index for measuring channel quality, and delay spread refers to a difference between a maximum transmission delay and a minimum transmission delay, or is understood as a difference between a delay value of a propagation path with a maximum delay and a delay value of a propagation path with a minimum delay in a multi-path signal which is received by a receiving end and can be distinguished by delay. Generally, the larger the delay spread, the smaller the coherence bandwidth of the corresponding frequency domain. The signals transmitted on different frequency domain resources in the coherent bandwidth have better correlation with corresponding fading channels, and the better correlation can also be understood as that the signals transmitted on different frequency domain resources in the coherent bandwidth experience similar wireless channel fading.

3) A time unit, which is a time domain concept for data transmission, may include radio frames (radio frames), subframes (subframes), slots (slots), minislots (mini-slots), or time domain symbols (symbols) and other time domain units. In a 5G New Radio (NR), the time domain length of one radio frame is 10ms. One radio frame may include 10 radio subframes, and the time domain length of one radio subframe is 1ms. One radio subframe may include one or more slots, and how many slots a subframe includes is related to the subcarrier spacing. For the case where the Subcarrier spacing (SCS) is 15kHz, the time domain length of one slot is 1ms. One slot includes 14 Orthogonal Frequency Division Multiplexing (OFDM) uplink symbols.

In this application, a time unit specifically includes one time slot or multiple time slots, and may also include multiple consecutive time domain symbols.

4) The resource unit, which is a concept of a frequency domain for data transmission, may include concepts of Resource Elements (REs), resource Blocks (RBs), subcarriers (SCs), and the like.

In this application, the resource unit may specifically be a frequency domain resource unit.

In addition, the term "at least one" in the embodiments of the present application means one or more, and "a plurality" means two or more. "and/or" describes the association relationship of the associated object, indicating that there may be three relationships, for example, a and/or B, which may indicate: a exists alone, A and B exist simultaneously, and B exists alone, wherein, A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. At least one of the following items or the like, refers to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

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

Furthermore, the terms "comprising" and "having" in the description of the embodiments and claims of the present application and the accompanying drawings are not exclusive. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to only those steps or modules listed, but may include other steps or modules not listed.

The application provides an uplink transmission method and a downlink transmission method, which can ensure that uplink transmission of N continuous time units is continuous in a frequency domain, and ensure phase continuity required by joint channel estimation, thereby effectively improving the accuracy of channel estimation and improving the transmission performance.

Specifically, with reference to fig. 2, a detailed description is given of an uplink transmission method provided in the present application. The steps shown in fig. 2 are as follows:

s200: the terminal equipment determines N frequency domain starting positions.

Specifically, the terminal device determines N frequency domain starting positions according to the frequency domain starting position of the resource unit for uplink transmission in the first time unit and the number of resource units allocated for uplink transmission in one time unit.

The N frequency domain positions include a frequency domain start position of uplink transmission of each time unit of the N consecutive time units, where N is a natural number greater than 1.

In an optional manner, the first time unit is a first time unit of the time domain sequence in the N time units.

S201: and the terminal equipment sends uplink transmission to the network equipment according to the N frequency domain initial positions.

Accordingly, the network device receives the uplink transmission from the terminal device.

S202: the network device determines N frequency domain starting positions.

Specifically, the network device determines N frequency domain starting positions according to the frequency domain starting position of the resource unit for uplink transmission in the first time unit and the number of resource units allocated for uplink transmission in one time unit.

S203: and the network equipment receives the uplink transmission from the terminal equipment according to the N frequency domain initial positions.

The N time units comprise the first time unit and a second time unit, the frequency domain end position of uplink transmission on the first time unit and the frequency domain start position of uplink transmission on the second time unit are continuous on the frequency domain, and the first time unit is adjacent to the second time unit.

In an alternative manner, a difference between the index of the resource unit corresponding to the frequency domain end position of the uplink transmission in the first time unit and the index of the resource unit corresponding to the frequency domain start position of the uplink transmission in the second time unit is 1.

For example, the positions of the first time unit and the second time unit can be as shown in fig. 3, and the first time unit is a time unit before the second time unit. It can be understood that the index of the resource unit corresponding to the frequency domain end position of the uplink transmission in the first time unit is smaller than the index value of the resource unit corresponding to the frequency domain start position of the uplink transmission in the second time unit by 1.

Alternatively, the positions of the first time unit and the second time unit can be as shown in fig. 4, and the first time unit is a time unit after the second time unit. It can be understood that the index of the resource unit corresponding to the frequency domain end position of the uplink transmission in the first time unit is greater than the index value of the resource unit corresponding to the frequency domain start position of the uplink transmission in the second time unit by 1.

It should be noted that the sequence of the steps described in fig. 2 does not limit the embodiment of the present application, and the embodiment of the present application may adaptively adjust the steps according to actual situations. For example, S200 and S201 may be performed simultaneously, and S202 to S203 may be performed simultaneously.

Further, in this embodiment, before the terminal device and the network device respectively determine the N frequency domain start positions, the terminal device and the network device need to determine the number N of time units. In the scheme, a rule that the network equipment and the terminal equipment determine N frequency domain starting positions is designed, so that the network equipment and the terminal equipment are aligned with the N frequency domain starting positions of uplink transmission, and correct sending and correct receiving of information are guaranteed.

In order to describe the rule for determining the N frequency domain start positions by the network device and the terminal device more clearly, the following examples are respectively given based on different devices:

1. the mode of determining the number N of time units by the terminal equipment is as follows:

in the embodiment of the present application, the terminal device has multiple ways of determining the number N of time units, which are not specifically limited to the following:

determination method 1: and the terminal equipment determines the number N of the time units according to the first threshold and the number of the resource units allocated to the uplink transmission in one time unit.

Specifically, in this embodiment of the present application, the first threshold, the number of resource units allocated for uplink transmission in a time unit, and the number N of time units may satisfy the following formula 1:

N*n_PRBequation 1 for not less than the first threshold

Wherein N represents the number of time units in which the frequency domain positions are consecutive; n is_PRBRepresenting the number of resource units allocated for uplink transmission over a time unit; the first threshold may be a minimum number of frequency domain resource units required for channel estimation in order to guarantee good channel estimation performance.

The first threshold may be predefined, or may be indicated to the terminal device by the network device through signaling, and the embodiment of the present application does not limit the determination manner of the first threshold, and any manner that the first threshold can be obtained belongs to the protection scope of the present application.

For example, the terminal device receives first information sent from the network device, where the first information is used to indicate a first threshold.

Therefore, the terminal device may obtain a minimum value of the number N of time units with consecutive frequency domain positions according to the first threshold and the number of resource units allocated for uplink transmission in a time unit, that is, N is greater than or equal to the first threshold/N_PRB。

Alternatively, the terminal device may determine the value of N according to the following formula 2:

for example, when the first threshold is 16, the terminal device may obtain the following values of N according to the above formula 2:

n_PRB	N	n_PRB	N
				1	16	6～7	3
2	8	8～15	2
				3	6	16	1
4～5	4

table 1 terminal device according to first threshold and n_PRBCorresponding N value of quantity determination

In addition, in the above-mentioned formula 2,

the method may be rounding up, rounding down, rounding up, or the like, and is not limited herein.

Determination mode 2: and the terminal equipment determines the number N of the time units according to the delay spread value and the number of the resource units distributed for the uplink transmission in one time unit.

Wherein, since the joint channel estimation is precondition-constrained, the total resource unit bandwidth of N time units needs to be within one coherence bandwidth. If the fading difference of the resource unit frequency domains of different time units is large, it is not necessary to perform joint channel estimation, and therefore, it is necessary to satisfy: n x N_PRBIs less than or equal to the coherence bandwidth, i.e., satisfies the following equation 3:

Δf＝15*2^μ

wherein N represents the number of time units in which the frequency domain positions are consecutive; n is a radical of an alkyl radical_PRBRepresenting the number of resource units allocated for uplink transmission over a time unit; tau._DSThe time delay expansion value is expressed, and the unit is s; Δ f represents a subcarrier spacing; μ denotes a subcarrier spacing parameter.

In an alternative manner, μ and Δ f take the following values:

μ	Δf＝2^μ·15[kHz]
		0	15
1	30
		2	60
3	120
		4	240

therefore, the terminal device may determine the number N of time units according to the delay spread value and the number of resource units allocated for uplink transmission in a time unit, and by using the content of the foregoing formula 3.

Further, after determining the number N of time units, the terminal device may notify the network device that communicates with the terminal device of the number N of time units, so that the network device may configure downlink transmission of N frequency domain starting positions based on the number N of time units; or, the network device receives uplink transmissions of the N frequency domain start positions based on the number N of the time units.

For example, the terminal device sends second information to the communicating network device, the second information indicating the number N of time units. After receiving the second information, the network device configures downlink transmissions of N frequency domain start positions based on the number N of time units indicated by the second information.

For another example, the terminal device sends second information to the communicating network device, where the second information is used to indicate the number N of time units. And after receiving the second information, the network device receives uplink transmissions from the terminal device at the N frequency domain starting positions based on the number N of the time units indicated by the second information.

Further, after determining the delay spread value, the terminal device may notify the network device of the delay spread value, so that the network device may determine the number N of time units based on the delay spread value, and then configure downlink transmission of N frequency domain starting positions according to the number N of time units; or, the network device may determine the number N of time units based on the delay spread value, and then receive uplink transmissions from the N frequency domain start positions of the terminal device according to the number N of time units.

For example, the terminal device sends second information to the network device, where the second information is used to indicate a delay spread value.

After receiving the second information, the network device determines the number N of time units according to the above formula 3 based on the delay spread value indicated by the second information, and then configures downlink transmission of N frequency domain start positions.

For another example, the terminal device sends second information to the network device, where the second information is used to indicate a delay spread value. After receiving the second information, the network device determines the number N of time units according to the formula 3 based on the delay spread value indicated by the second information, then determines N frequency domain start positions, and receives uplink transmissions from the N frequency domain start positions of the terminal device.

Determination mode 3: the terminal device acquires the number of time units N from the network device.

In an alternative mode, the terminal device receives first information sent from the network device, where the first information is used to indicate the number N of time units, that is, after the network device determines the number N of time units according to some or all of the formulas 1 to 3, the terminal device is indicated by the first information.

2. The way in which the network device determines the number N of time units:

in the embodiment of the present application, the network device has multiple ways of determining the number N of the time units, which are not specifically limited to the following:

determination method 1: the network device determines the number N of time units based on the number of resource units allocated for uplink transmission over a time unit.

In an alternative, the network device determines the number N of time units according to a first threshold and the number of resource units allocated for uplink transmission in one time unit.

Specifically, in this embodiment of the present application, the first threshold, the number of resource units allocated for uplink transmission in one time unit, and the number N of time units may satisfy the above formula 1, that is, satisfy N × N_PRBThe first threshold value is more than or equal to.

Therefore, the network device may obtain the minimum value of the number N of time units with consecutive frequency domain positions according to the first threshold and the number of resource units allocated for uplink transmission in a time unit.

Alternatively, the network device may determine the specific value of N according to equation 2 below, i.e., the network device determines the specific value of N according to

A specific number N of time units may be determined.

The network device may determine the first threshold in a variety of ways, and is not limited to the following:

first threshold determination method 1: the first threshold may be negotiated in advance by the network device and the communicating terminal device.

It can be understood that, in this way, the network device knows the value of the first threshold in advance.

First threshold determination mode 2: the first threshold may be randomly chosen by the network device from data that satisfies the condition.

It will be appreciated that in this manner the first threshold is self-determined by the network device and is not known to the terminal device.

For example, in order to ensure better channel estimation performance, the network device determines the number of the minimum frequency domain resource units required for channel estimation as the first threshold.

Further, when the first threshold is a condition that the network device determines by itself, the network device may notify the terminal device of the first threshold after determining the first threshold, so that the terminal device may determine the number N of time units based on the first threshold.

For example, the network device sends first information to the terminal device, where the first information includes the first threshold.

Determination mode 2: and the network equipment determines the number N of the time units according to the delay spread value and the number of the resource units distributed for uplink transmission in one time unit.

In an optional manner, the delay spread value is obtained by the network device from the terminal device.

For example, the network device receives second information from the terminal device, where the second information includes the delay spread value.

Further, after obtaining the delay spread value, the network device may determine the rate N of the time unit according to the above formula 3. I.e. the network device may be based on

The number of time units N is determined.

Further, after determining the number N of the time units, the network device may notify the terminal device of the number N of the time units, so that the terminal device may configure N frequency domain start positions for downlink transmission based on the number N of the time units; or, the terminal device receives downlink transmissions of N frequency domain starting positions based on the number N of time units.

For example, the network device sends first information to the terminal device, where the first information is used to indicate the number N of time units. After receiving the first information, the terminal device configures N frequency domain initial positions for downlink transmission based on the number N of time units indicated by the first information; or, the terminal device receives downlink transmission from the network device via N frequency domain starting positions based on the number N of time units indicated by the first information.

Determination mode 3: the network device acquires the number of time units N from the terminal device.

In an alternative mode, the network device receives second information sent from the terminal device, where the second information is used to indicate the number N of time units, that is, after the terminal device determines the number N of time units according to some or all of the formulas 1 to 3, the network device is indicated by the second information.

Further, in this embodiment of the present application, when the network device determines the number N of time units, the number N may be determined by combining the maximum number of time units that the terminal device can maintain phase continuity.

In an alternative manner, the number N of time units determined by the network device is not greater than the maximum number L of time units that the terminal device can maintain phase continuity.

Alternatively, the network device may determine the maximum number L of time units that the terminal device can maintain phase continuity through the third information sent by the terminal device. Wherein the third information is used to indicate a maximum number L of time units in which phase continuity can be maintained. That is, the third information is used to indicate the number of time units that the terminal device can support phase continuity at most.

Further, in the embodiment of the present application, when the terminal device performs uplink transmission to the network device, there may be multiple different communication scenarios, and based on the different communication scenarios, the manners for determining the N frequency domain starting positions by the terminal device and the network device are also different, and are not specifically limited to the following ones:

communication scenario one: the transmission is repeated.

In this first communication scenario, the terminal device may determine N frequency domain starting positions according to the frequency domain starting position of the resource unit for uplink transmission in the first time unit and the number of resource units allocated for uplink transmission in one time unit.

Alternatively, the terminal device may determine the N frequency domain start positions by the following formula 4.

RB_start(n)＝RB_start(n-1)+n_PRBN =2,3, \ 8230;, N formula 4

Wherein n represents the nth time unit, RB_start(n) denotes the frequency domain starting position of the resource unit for uplink transmission on the nth time unit, n_PRBIndicating the number of resource units allocated for uplink transmission over one time unit.

After the terminal device determines the N frequency domain starting positions according to the formula 4, the terminal device performs uplink transmission to the network device according to the N frequency domain starting positions.

Further, the network device may also determine N frequency domain starting positions based on the above formula 4, and receive uplink transmission from the terminal device through the N frequency domain starting positions after the N frequency domain starting positions are determined.

In addition, the embodiment of the present application may further modify the above equation 4 to obtain the following equation 5:

RB_start(n)＝RB_start(n-1)-n_PRBn =2,3, \ 8230;, N equation 5

After the terminal device determines N frequency domain starting positions according to the formula 5, the terminal device performs uplink transmission to the network device according to the N frequency domain starting positions.

The network device may also determine N frequency domain start positions based on the above formula 5, and receive uplink transmission from the terminal device through the N frequency domain start positions after determining the N frequency domain start positions.

It can be understood that the above formula 4 indicates that the frequency domain starting positions of the resource units repeatedly transmitted N times are continuous and shifted one by one in ascending order; the above equation 5 indicates that the frequency domain start positions of the resource units repeatedly transmitted N times are consecutive and shifted one by one in a descending order. That is, the resource unit offset direction is not limited in the embodiments of the present application.

When the first communication scenario is a periodic continuous scenario, the above equation 4 may be simplified to obtain the following equation 6:

RB_start(n)＝RB_start+(n-1)n_PRBn =2,3, \ 8230;, N formula 6

For example, assuming that the communication scenario is a periodic continuous scenario, when the terminal device performs uplink communication transmission to the network device, the number of repetitions N =4, that is, the Physical Uplink Shared Channel (PUSCH) is repeatedly transmitted in 4 consecutive slots, and the number of RBs repeatedly scheduled at each time is N_PRB。

The terminal device determines the starting positions of the N frequency domains by using the above formula 6, and may obtain the frequency domain configuration of the resource unit as shown in fig. 5. Then, the terminal device performs uplink transmission to the network device according to the N frequency domain start positions shown in fig. 5.

The network device may also determine the N frequency domain start positions based on the above formula 6, to obtain the frequency domain configuration of the resource unit shown in the above 5. Then, the network device receives the uplink transmission from the terminal device according to the N frequency domain start positions shown in fig. 5.

By the above manner, the frequency domain position configuration of the resource unit shown in fig. 5 is adopted, so that the frequency domain positions of the resource units of two adjacent repeated transmissions are ensured to be continuous in the N repetitions, and thus, the N repeated transmissions can be subjected to joint channel estimation, that is, the frequency domain can be equivalently an N × N channel_PRBThe scheduling bandwidth carries out channel estimation, realizes the value of frequency domain channel estimation with larger dimensionality, and leads the channel estimation to be more accurate and effectiveAnd the transmission performance is improved.

Further, when the first communication scenario is a periodic scenario and there are at least two consecutive scenarios in a time unit, the above equation 6 may be modified to obtain the following equation 7:

RB_start(n)＝RB_start+(mod(n,N)-1)n_PRBn =1,2,3, \8230;, N equation 7

Wherein n represents the nth time unit, RB_start(n) denotes the frequency domain starting position of the resource unit for uplink transmission on the nth time unit, n_PRBIs expressed as the number of resource units allocated for uplink transmission over one time unit, and N is expressed as the number of consecutive resource units.

For example, it is assumed that the communication scenario is a periodic scenario, where when the terminal device performs uplink transmission to the network device, one transport block is carried on 8 time units, every 4 time units are consecutive, that is, one TB occupies 8 time units, consecutive repeated transmission of PUSCH is performed on every 4 time units, and the number of RBs repeatedly scheduled each time is n_PRB。

The terminal device determines the starting positions of the N frequency domains by using the above formula 7, and may obtain the frequency domain configuration of the resource unit as shown in fig. 6. Then, the terminal device performs uplink transmission to the network device according to the N frequency domain starting positions shown in fig. 6.

The network device may also determine N frequency domain starting positions based on the above formula 7, to obtain the frequency domain configuration of the resource unit shown in the above 6. Then, the network device receives the uplink transmission from the terminal device according to the N frequency domain start positions shown in fig. 6.

By adopting the above manner, the frequency domain position configuration of the resource unit shown in fig. 6 ensures that the frequency domain positions of the resource units of two adjacent repeated transmissions are continuous in the N repetitions, so that the N repeated transmissions can be subjected to joint channel estimation, that is, the frequency domain can be equivalent to one N × N_PRBThe scheduling bandwidth of the channel estimation method realizes the value of frequency domain channel estimation with a larger dimension,the channel estimation is more accurate, and the transmission performance is effectively improved.

In addition, in the embodiment of the present application, the above equation 6 may be modified to obtain the following equation 8:

RB_start(n)＝RB_start-(n-1)n_PRBn =2,3, \8230, N equation 8

It can be understood that, in the above formula 6, the resource unit frequency domain positions repeatedly sent N times are continuous in a periodic continuous scene, and shift one by one in an ascending order; the above equation 8 shows that in the periodic continuous scenario, the frequency domain positions of the resource units repeatedly transmitted N times are continuous, and shift one by one in a descending order.

For example, in this communication scenario one, when the terminal device performs uplink transmission to the network device, the number of repetitions N =4, that is, the PUSCH is repeatedly transmitted in 4 consecutive slots, and the number of RBs repeatedly scheduled at each time is N_PRB。

The terminal device determines the N frequency domain positions according to the above formula 8, and may obtain the resource unit frequency domain configuration shown in fig. 7. Then, the terminal device performs uplink transmission to the network device according to the N frequency domain positions shown in fig. 7.

Further, the network device may also determine the N frequency domain start positions based on the above formula 8, to obtain the frequency domain configuration of the resource unit shown in the above 7. Then, the network device receives the uplink transmission from the terminal device according to the N frequency domain start positions shown in fig. 7.

In this way, the frequency domain location configuration of the resource unit shown in fig. 7 is adopted to ensure that the frequency domain locations of the resource units of two adjacent repeated transmissions are continuous in N repetitions, so that joint channel estimation can be performed on the N repeated transmissions, that is, on the frequency domainCan be equivalent to one N x N_PRBThe scheduling bandwidth carries out channel estimation, a larger-dimensionality frequency domain channel estimation value is realized, the channel estimation is more accurate, and the transmission performance is effectively improved.

Further, in this embodiment of the present application, the frequency domain positions of the N resource units may also be in a transmission range, the frequency domain positions of the N resource units are continuous, and the ascending offset and the descending offset are switched according to a certain period.

In an optional manner, when the frequency domain positions of the N resource units may also be within a transmission range, the frequency domain positions of the N resource units are continuous, and the N resource units are first periodically ascending and then descending, the embodiment of the present application may modify the above formula 4 to obtain the following formula 9:

wherein n represents the nth time unit, RB_startIndicating the frequency domain starting position, RB, of a resource unit for uplink transmission of a first time unit over a plurality of time units_start(N) indicates the frequency domain starting position, RB, of the resource unit for uplink transmission on the Nth time unit_start(n) denotes the frequency domain starting position of the resource unit for uplink transmission on the nth time unit.

For example, in a first communication scenario, when the terminal device performs communication transmission, the number of repetitions N =5, the frequency domain positions of each 5 resource units are consecutive, and the 5 resource units are periodically ascending and then descending. I.e. repeated transmission of PUSCH on 5 consecutive slots, and the number of RBs scheduled repeatedly per time is n_PRB。

The terminal device determines the starting positions of the N frequency domains according to the above formula 9, and may obtain the frequency domain configuration of the resource unit as shown in fig. 8. Then, the terminal device performs uplink transmission to the network device according to the N frequency domain start positions shown in fig. 8.

The network device may also determine N frequency domain starting positions based on the above formula 9, to obtain the frequency domain configuration of the resource unit shown in the above 8. Then, the network device receives the uplink transmission from the terminal device according to the N frequency domain start positions shown in fig. 8.

By the above manner, the frequency domain position configuration of the resource unit shown in fig. 8 ensures that the frequency domain positions of the resource units of two adjacent repeated transmissions are continuous in N repetitions, so that the N repeated transmissions can be subjected to joint channel estimation, that is, the frequency domain can be equivalently an N × N channel estimation_PRBThe scheduling bandwidth carries out channel estimation, and the value of frequency domain channel estimation with a larger dimensionality is realized, so that the channel estimation is more accurate, and the transmission performance is effectively improved.

In an alternative manner, when frequency domain positions of N resource units are continuous in a transmission range, and the N resource units are periodically sorted in a descending order and then sorted in an ascending order, the embodiment of the present application may modify the above equation 4 to obtain the following equation 10:

For example, in a first communication scenario, when the terminal device and the network device perform uplink transmission, the number of repetitions N =7, the frequency domain positions of each 7 resource units are continuous, and the 7 resource units are first in a descending order and then in an ascending order periodically. I.e. repeated transmission of PUSCH on 7 consecutive slots, and the number of RBs scheduled repeatedly per time is n_PRB。

The terminal device determines the starting positions of the N frequency domains by using the above formula 10, and may obtain the frequency domain configuration of the resource unit as shown in fig. 9. Then, the terminal device performs uplink transmission to the network device according to the N frequency domain start positions shown in fig. 9.

The network device may also determine the N frequency domain start positions based on the above formula 10, to obtain the frequency domain configuration of the resource unit shown in the above 9. Then, the network device receives the uplink transmission from the terminal device according to the N frequency domain start positions shown in fig. 9.

By adopting the above manner, the frequency domain position configuration of the resource unit shown in fig. 9 ensures that the frequency domain positions of the resource units of two adjacent repeated transmissions are continuous in the N repetitions, so that the N repeated transmissions can be subjected to joint channel estimation, that is, the frequency domain can be equivalent to one N × N_PRBThe scheduling bandwidth carries out channel estimation, and the value of frequency domain channel estimation with a larger dimensionality is realized, so that the channel estimation is more accurate, and the transmission performance is effectively improved.

In addition, the transmission method and formula in the embodiment of the present application are applicable to transmission formats, and are not limited to the PUSCH retransmission type a format, the PUSCH retransmission type B format, the TBoMS format, the PUCCH retransmission type a format, the downlink transmission format, and the like.

Communication scenario two: a frequency hopping scenario.

In this second communication scenario, the terminal device may determine N frequency domain positions according to the frequency domain starting position of the resource unit of the uplink transmission in the first time unit, the number of resource units allocated for the uplink transmission in one time unit, and the frequency hopping offset value.

It should be noted that the transmission method provided in the embodiment of the present application is applicable to a variety of frequency hopping scenarios, and is not specifically limited to a frequency hopping pattern scenario supported by NR R16, and an inter-slot frequency hopping mechanism scenario of DMRS bundling proposed in NR R17.

In an optional manner of the embodiment of the present application, the frequency hopping offset value is determined by the network device and configured to the terminal device.

In an alternative manner, the terminal device may determine the N frequency domain start positions in the second communication scenario through a formula 11 obtained by transforming the above formula 4.

Wherein RB_startIndicating the frequency domain starting position of the resource unit of the uplink transmission of the first time unit in N time units, N indicating the nth time unit, N_PRBExpressed as the number of resource units allocated for uplink transmission over one time unit,

Further, the network device may also determine N frequency domain start positions based on the above formula 11, and receive uplink transmission from the terminal device through the N frequency domain start positions after determining the N frequency domain start positions.

For example, in a second communication scenario, when the terminal device and the network device perform uplink transmission in the second communication scenario, the total number of resource units is 6, the configured frequency hopping granularity is N =2, and the frequency hopping frequency domain position changes to RB each time_offset. That is, the frequency domain positions of 2 resource units with consecutive frequency domain positions are switched in ascending order and frequency hopping of the frequency domain positions of the resource units is performed every 2 resource units.

The terminal device determines the starting positions of N frequency domains by using the above formula 11, and may obtain the frequency domain configuration of the resource unit as shown in fig. 10. Then, the terminal device performs uplink transmission to the network device according to the N frequency domain start positions shown in fig. 10.

The network device may also determine N frequency domain starting positions based on the above formula 11, to obtain the frequency domain configuration of the resource unit shown in the above 10. Then, the network device receives the uplink transmission from the terminal device according to the N frequency domain start positions shown in fig. 10.

By the above manner, with the frequency domain position configuration of the resource unit shown in fig. 10, when frequency hopping is started, frequency hopping is not performed every N consecutive transmissions, the frequency domain positions of the resource unit are different and consecutive, phase continuity is ensured, channel estimation equivalent to large bandwidth is enabled, a value of frequency domain channel estimation with a larger dimension is realized, channel estimation is more accurate, and transmission performance is effectively improved.

In addition, the embodiment of the present application may further modify the above equation 11 to obtain the following equation 12:

Further, the terminal device may also determine N frequency domain starting positions based on the above formula 12, and perform uplink transmission to the network device through the N frequency domain starting positions after determining the N frequency domain starting positions; the network device may also determine N frequency domain starting positions based on the above formula 12, and receive uplink transmission from the terminal device through the N frequency domain starting positions after the N frequency domain starting positions are determined.

It can be understood that the above formula 11 indicates that the frequency domain positions of the N resource units are consecutive and shifted one by one in ascending order; the above equation 12 indicates that the frequency domain positions of the N resource units are consecutive and shifted one by one in a descending order.

Exemplarily, it is assumed that in the second communication scenario, the terminal device is connected to the network deviceWhen the uplink transmission is carried out, the total number of resource units is 6, the configured frequency hopping granularity is N =2, and the frequency domain position of each frequency hopping is changed into RB_offset. That is, the frequency domain positions of 2 resource units with continuous frequency domain positions are switched in descending order and offset, and frequency domain position frequency hopping of the resource units is performed every 2 resource units.

The terminal device determines the starting positions of the N frequency domains by using the above formula 12, and may obtain the frequency domain configuration of the resource unit as shown in fig. 11. Then, the terminal device performs uplink transmission to the network device according to the N frequency domain start positions shown in fig. 11.

The network device may also determine the N frequency domain start positions based on the above formula 12, to obtain the frequency domain configuration of the resource unit shown in the above 11. Then, the network device receives the uplink transmission from the terminal device according to the N frequency domain start positions shown in fig. 11.

By adopting the above manner, with the frequency domain position configuration of the resource unit shown in fig. 11, when frequency hopping is started, frequency hopping is not performed every N consecutive transmissions, the frequency domain positions of the resource unit are different and consecutive, phase continuity is ensured, channel estimation equivalent to large bandwidth is enabled, a value of frequency domain channel estimation with a larger dimension is realized, channel estimation is more accurate, and transmission performance is effectively improved.

Further, in this embodiment of the present application, the frequency domain positions of the N resource units may also be subjected to frequency hopping every N resource units within a transmission range, and the frequency domain positions of the N resource units are continuous, and are switched according to a certain period by ascending offset and descending offset.

In an optional manner, when frequency hopping of the frequency domain positions of the resource units is performed every N resource units within a transmission range, the frequency domain positions of the N resource units are continuous, and the N resource units are first periodically ascending and then descending, the embodiment of the present application may modify the above formula 9 to obtain the following formula 13:

wherein n represents the nth time unit, RB_startFrequency domain starting position, RB, of resource unit representing uplink transmission of first time unit over multiple time units_start(N) indicates the frequency domain starting position, RB, of the resource unit for uplink transmission on the Nth time unit_start(n) denotes a frequency domain starting position of a resource unit for uplink transmission on an nth time unit,

Exemplarily, in the second communication scenario, when the terminal device performs uplink transmission to the network device, the total number of resource units is 10, the configured frequency hopping granularity is N =5, and the frequency domain position of each frequency hopping is changed to be RB_offset. That is, the frequency domain positions of every 5 resource units are continuous, and the frequency domain position frequency hopping of the resource units is performed once every 5 resource units after the 5 resource units are in ascending order and descending order periodically.

The terminal device determines the starting positions of the N frequency domains by using the above formula 13, and may obtain the frequency domain configuration of the resource unit as shown in fig. 12. Then, the terminal device performs uplink transmission to the network device according to the N frequency domain start positions shown in fig. 12.

The network device may also determine the N frequency domain start positions based on the above formula 13, to obtain the frequency domain configuration of the resource unit shown in the above 12. Then, the network device receives the uplink transmission from the terminal device according to the N frequency domain start positions shown in fig. 12.

By the above manner, with the resource unit frequency domain position configuration shown in fig. 12, when frequency hopping is started, frequency hopping is not performed every N consecutive transmissions, the frequency domain positions of the resource units are different and consecutive, phase continuity is ensured, channel estimation equivalent to a large bandwidth is enabled, a value of frequency domain channel estimation with a larger dimension is realized, channel estimation is more accurate, and transmission performance is effectively improved.

In an optional manner of this embodiment, when the frequency domain positions of the N resource units may also be within a transmission range, frequency hopping of the frequency domain positions of the resource units is performed once every N resource units, the frequency domain positions of the N resource units are continuous, and the N resource units are first in a periodic descending order and then in an ascending order, this embodiment may be modified from the foregoing formula 10 to obtain the following formula 14:

For example, in a second communication scenario, when the terminal device performs uplink transmission to the network device, the total number of resource units is 10, the configured hopping granularity is N =5, and the frequency-domain position of each hopping frequency changes to RB_offset. That is, the frequency domain positions of every 5 resource units are continuous, and the frequency domain position frequency hopping of the resource units is performed once every 5 resource units after the 5 resource units are in descending order and ascending order periodically.

The terminal device determines the starting positions of the N frequency domains by using the above formula 14, and may obtain the frequency domain configuration of the resource unit as shown in fig. 13. Then, the terminal device performs uplink transmission to the network device according to the N frequency domain start positions shown in fig. 13.

The network device may also determine N frequency domain starting positions based on the above formula 14, to obtain the frequency domain configuration of the resource unit shown in the above 13. Then, the network device receives the uplink transmission from the terminal device according to the N frequency domain start positions shown in fig. 13.

By adopting the above manner and the frequency domain position configuration of the resource unit shown in fig. 13, when frequency hopping is started, frequency hopping is not performed every N consecutive transmissions, the frequency domain positions of the resource unit are different and consecutive, phase continuity is ensured, channel estimation equivalent to large bandwidth is enabled, a value of frequency domain channel estimation with a larger dimension is realized, channel estimation is more accurate, and transmission performance is effectively improved.

In an optional manner of the embodiment of the present application, the same frequency hopping offset value is used every N time units.

In the embodiment of the present application, the order value of each time unit in every N time units is introduced, and it can be understood that, in different groups in the embodiment of the present application, resource block offset values between time units with the same order value are the same.

In addition, the transmission method and formula in the embodiment of the present application are applicable to transmission forms, and are not specifically limited to PUCCH frequency hopping, frequency hopping for downlink transmission, and the like.

Specifically, as shown in fig. 14, a downlink transmission method provided in an embodiment of the present application includes the following steps:

s1400: the network device determines N frequency domain starting positions.

The N frequency domain positions include a frequency domain starting position of uplink transmission of each time unit in the N consecutive time units, where N is a natural number greater than 1.

S1401: and the network equipment sends downlink transmission to the terminal equipment according to the N frequency domain initial positions.

S1402: the terminal equipment determines N frequency domain starting positions.

S1403: and the terminal equipment receives downlink transmission from the network equipment according to the N frequency domain initial positions.

For the introduction of the N time units in the embodiment of the present application, reference may be made to the content of the portion in fig. 2, and for brevity, details are not described here.

It should be noted that the sequence of the steps described in fig. 14 does not limit the embodiment of the present application, and the embodiment of the present application may adaptively adjust the steps according to actual situations. For example, S1400 and S1401 may be performed simultaneously, and S1402 to S1403 may be performed simultaneously.

Further, in this embodiment of the present application, before the terminal device and the network device respectively determine the N frequency domain start positions, the terminal device and the network device need to determine the number N of time units.

In this embodiment, the terminal device and the network device have multiple ways of determining the number N of the time units, and for concrete reference, contents of ways of determining the number N of the time units when the terminal device and the network device perform uplink transmission may be referred to, and for brevity, details are not described here.

Further, in the embodiment of the present application, when the network device performs downlink transmission to the terminal device, there may be multiple different communication scenarios, and based on the different communication scenarios, the modes of determining the N frequency domain start positions by the network device and the terminal device are not the same, and are not specifically limited to the following several modes:

communication scenario one: the transmission is repeated.

In this communication scenario one, the network device may determine N frequency domain starting positions according to the frequency domain starting position of the resource unit for downlink transmission in the first time unit and the number of resource units allocated for downlink transmission in one time unit.

Alternatively, the network device may determine the N frequency domain start positions by equation 4 above.

After the network device determines N frequency domain starting positions according to the formula 4, the network device performs downlink transmission to the terminal device according to the N frequency domain starting positions.

Further, the terminal device may also determine N frequency domain starting positions based on the above formula 4, and receive downlink transmission from the network device through the N frequency domain starting positions after the N frequency domain starting positions are determined.

Alternatively, the network device may determine the N frequency domain start positions by using equation 5.

After the network device determines N frequency domain starting positions according to the formula 5, the network device performs downlink transmission to the terminal device according to the N frequency domain starting positions.

Further, the terminal device may also determine N frequency domain starting positions based on the above formula 5, and receive downlink transmission from the network device through the N frequency domain starting positions after the N frequency domain starting positions are determined.

It can be understood that the above formula 4 indicates that the frequency domain positions of the resource units repeatedly transmitted N times are continuous and are shifted one by one in ascending order; the above equation 5 indicates that the resource unit frequency domain positions repeatedly transmitted N times are consecutive and shifted one by one in a descending order. That is, the resource unit offset direction is not limited in the embodiments of the present application.

When the first communication scenario is a periodically continuous scenario, the network device may determine the N frequency domain start positions through the above equation 6. After the network device determines the N frequency domain starting positions according to the formula 6, the network device performs downlink transmission to the terminal device according to the N frequency domain starting positions.

Further, the terminal device may also determine N frequency domain starting positions based on the above formula 6, and receive downlink transmission from the network device through the N frequency domain starting positions after the N frequency domain starting positions are determined.

For example, assuming that the communication scenario is a periodic continuous scenario, when the network device performs downlink communication transmission to the terminal device, the number of repetitions N =4, that is, the Physical Uplink Shared Channel (PUSCH) is repeatedly transmitted on 4 consecutive time slots, and the number of RBs repeatedly scheduled at each time is N_PRB。

The network device determines the starting positions of the N frequency domains by using the above formula 6, so as to obtain the frequency domain configuration of the resource unit shown in fig. 5. Then, the network device performs downlink transmission to the terminal device according to the N frequency domain start positions shown in fig. 5.

The terminal device may also determine the N frequency domain start positions based on the above formula 6, to obtain the frequency domain configuration of the resource unit shown in fig. 5. Then, the terminal device receives downlink transmission from the network device according to the N frequency domain start positions shown in fig. 5.

By adopting the above manner, the frequency domain location configuration of the resource unit shown in fig. 5 ensures that the frequency domain locations of the resource units of two adjacent repeated transmissions are continuous in the N repetitions, so that the N repeated transmissions can be subjected to joint channel estimation, that is, the frequency domain can be equivalent to one N × N_PRBThe scheduling bandwidth carries out channel estimation, and the value of frequency domain channel estimation with a larger dimensionality is realized, so that the channel estimation is more accurate, and the transmission performance is effectively improved.

Further, when the first communication scenario is a periodic scenario and there are at least two consecutive scenarios in a time unit, the network device may determine the N frequency domain starting positions by using equation 7.

After the network device determines the N frequency domain starting positions according to the formula 7, the network device performs downlink transmission to the terminal device according to the N frequency domain starting positions. The terminal device may also determine N frequency domain starting positions based on the above formula 7, and receive downlink transmission from the network device through the N frequency domain starting positions after the N frequency domain starting positions are determined.

For example, it is assumed that the communication scenario is a periodic scenario, where when the network device performs uplink transmission to the terminal device, one transport block is carried on 8 time units, every 4 time units are consecutive, that is, one TB occupies 8 time units, consecutive repeated transmission of PUSCH is performed on every 4 time units, and the number of RBs repeatedly scheduled each time is n_PRB。

The network device determines the starting positions of the N frequency domains by using the above formula 7, so as to obtain the frequency domain configuration of the resource unit shown in fig. 6. Then, the network device performs downlink transmission to the terminal device according to the N frequency domain start positions shown in fig. 6.

The terminal device may also determine N frequency domain starting positions based on the above formula 7, to obtain the frequency domain configuration of the resource unit shown in fig. 6. Then, the terminal device receives downlink transmission from the network device according to the N frequency domain start positions shown in fig. 6.

By adopting the above manner, the frequency domain location configuration of the resource unit shown in fig. 6 ensures that the frequency domain locations of the resource units of two adjacent repeated transmissions are continuous in the N repetitions, so that the N repeated transmissions can be subjected to joint channel estimation, that is, the frequency domain can be equivalent to one N × N_PRBThe scheduling bandwidth carries out channel estimation, and the value of frequency domain channel estimation with a larger dimensionality is realized, so that the channel estimation is more accurate, and the transmission performance is effectively improved.

Alternatively, the network device may determine the N frequency domain start positions by using equation 8.

After the network device determines the N frequency domain starting positions according to the formula 8, the network device performs downlink transmission to the terminal device according to the N frequency domain starting positions.

Further, the terminal device may also determine N frequency domain starting positions based on the above formula 8, and receive downlink transmission from the network device through the N frequency domain starting positions after the N frequency domain starting positions are determined.

It can be understood that, in the above formula 6, the resource unit frequency domain positions repeatedly sent N times are continuous in a periodic continuous scene, and shift one by one in an ascending order; equation 8 above shows that in the periodic continuous scenario, the frequency domain positions of the resource units repeatedly transmitted N times are continuous, and are shifted one by one in a descending order.

For example, in this communication scenario one, when the network device performs uplink transmission to the terminal device, the number of repetitions N =4, that is, the PUSCH is repeatedly transmitted in 4 consecutive slots, and the number of RBs repeatedly scheduled at each time is N_PRB。

The network device determines the starting positions of the N frequency domains according to the above formula 8, so as to obtain the frequency domain configuration of the resource unit shown in fig. 7. Then, the network device performs downlink transmission to the terminal device according to the N frequency domain starting positions shown in fig. 7.

The terminal device may also determine the N frequency domain start positions based on the above formula 8, to obtain the frequency domain configuration of the resource unit shown in fig. 7. Then, the terminal device receives downlink transmission from the network device according to the N frequency domain start positions shown in fig. 7.

By the above manner, the frequency domain position configuration of the resource unit shown in fig. 7 is adopted, so that the frequency domain positions of the resource units of two adjacent repeated transmissions are ensured to be continuous in the N repetitions, and thus, the N repeated transmissions can be subjected to joint channel estimation, that is, the frequency domain can be equivalently an N × N channel_PRBThe scheduling bandwidth carries out channel estimation, a larger-dimensionality frequency domain channel estimation value is realized, the channel estimation is more accurate, and the transmission performance is effectively improved.

In an optional manner, when the frequency domain positions of the N resource units may also be within a transmission range, the frequency domain positions of the N resource units are continuous, and the N resource units are first in a periodically ascending order and then in a descending order, the network device may determine the N frequency domain starting positions by using the above formula 9.

After the network device determines the N frequency domain starting positions according to the above formula 9, the network device performs downlink transmission to the terminal device according to the N frequency domain starting positions. The terminal device may also determine N frequency domain starting positions based on the above formula 9, and receive downlink transmission from the network device through the N frequency domain starting positions after the N frequency domain starting positions are determined.

For example, in a first communication scenario, when the network device performs downlink transmission to the terminal device, the number of repetitions N =5, frequency domain positions of every 5 resource units are continuous, and the frequency domain positions of the 5 resource units are first in a periodically ascending order and then in a descending order. That is, repeated transmission of PUSCH is performed on 5 continuous time slots, and the number of RBs scheduled repeatedly at a time is n_PRB。

The network device determines the starting positions of the N frequency domains according to the above formula 9, so as to obtain the frequency domain configuration of the resource unit shown in fig. 8. Then, the network device performs downlink transmission to the terminal device according to the N frequency domain starting positions shown in fig. 8.

The terminal device may also determine the N frequency domain start positions based on the above formula 9, to obtain the frequency domain configuration of the resource unit shown in fig. 8. Then, the terminal device receives downlink transmission from the network device according to the N frequency domain start positions shown in fig. 8.

By adopting the above manner, the frequency domain location configuration of the resource unit shown in fig. 8 ensures that the frequency domain locations of the resource units of two adjacent repeated transmissions are continuous in the N repetitions, so that the N repeated transmissions can be subjected to joint channel estimation, that is, the frequency domain can be equivalent to one N × N_PRBThe scheduling bandwidth carries out channel estimation, a larger-dimensionality frequency domain channel estimation value is realized, the channel estimation is more accurate, and the transmission performance is effectively improved.

In an alternative manner, when the frequency domain positions of the N resource units are continuous in a transmission range, and the N resource units are periodically descending and then ascending, the network device may determine the starting positions of the N frequency domains according to the above formula 10.

After the network device determines the N frequency domain starting positions according to the above formula 10, the network device performs downlink transmission to the terminal device according to the N frequency domain starting positions.

Further, the terminal device may also determine N frequency domain starting positions based on the above formula 10, and receive downlink transmission from the network device through the N frequency domain starting positions after the N frequency domain starting positions are determined.

For example, in a first communication scenario, when the network device and the terminal device perform downlink transmission, the number of repetitions N =7, the frequency domain positions of each 7 resource units are continuous, and the 7 resource units are first in a descending order and then in an ascending order periodically. I.e. repeated transmission of PUSCH on 7 consecutive slots, and the number of RBs scheduled repeatedly per time is n_PRB。

The network device determines the N frequency domain starting positions according to the above formula 10, and may obtain the frequency domain configuration of the resource unit shown in fig. 9. Then, the network device performs downlink transmission to the terminal device according to the N frequency domain start positions shown in fig. 9.

The terminal device may also determine the N frequency domain start positions based on the above formula 10, so as to obtain the frequency domain configuration of the resource unit shown in fig. 9. Then, the terminal device receives downlink transmission from the network device according to the N frequency domain start positions shown in fig. 9.

By adopting the above manner, the frequency domain location configuration of the resource unit shown in fig. 9 ensures that the frequency domain locations of the resource units of two adjacent repeated transmissions are continuous in the N repetitions, so that the N repeated transmissions can be subjected to joint channel estimation, that is, the frequency domain can be equivalent to one N × N_PRBThe scheduling bandwidth carries out channel estimation, and the value of frequency domain channel estimation with a larger dimensionality is realized, so that the channel estimation is more accurate, and the transmission performance is effectively improved.

In addition, the transmission method and formula in the embodiment of the present application are applicable to transmission formats, and are not specifically limited to the PUSCH retransmission type a format, the PUSCH retransmission type B format, the TBoMS format, the PUCCH retransmission type a format, the downlink transmission format, and the like.

A second communication scenario: a frequency hopping scenario.

In the second communication scenario, the network device and the terminal device may determine N frequency domain positions according to the frequency domain starting position of the resource unit of the downlink transmission in the first time unit, the number of resource units allocated for the downlink transmission in one time unit, and the frequency hopping offset value.

It should be noted that the transmission method provided in the embodiment of the present application is applicable to multiple frequency hopping scenarios, and is not specifically limited to a frequency hopping pattern scenario supported by NR R16, an inter-slot frequency hopping scheme scenario of DMRS bundling proposed in NR R17, and the like.

In an alternative, the hopping offset value is determined by the network device and configured to the terminal device.

Alternatively, the network device may determine the N frequency domain start positions by equation 11 above.

After the network device determines N frequency domain starting positions according to the formula 11, the network device performs downlink transmission to the terminal device according to the N frequency domain starting positions.

Further, the terminal device may also determine N frequency domain starting positions based on the above formula 11, and receive downlink transmission from the network device through the N frequency domain starting positions after the N frequency domain starting positions are determined.

For example, in a second communication scenario, when the network device and the terminal device perform downlink transmission, the total number of resource units is 6, the configured frequency hopping granularity is N =2, and the frequency hopping frequency domain position changes to RB each time_offset. That is, the frequency domain positions of 2 resource units with continuous frequency domain positions are switched in ascending order and offset every 2 resource units, and frequency domain position hopping of the resource units is performed every 2 resource units.

The network device determines the starting positions of the N frequency domains by using the above formula 11, and may obtain the frequency domain configuration of the resource unit shown in fig. 10. Then, the network device performs downlink transmission to the terminal device according to the N frequency domain start positions shown in fig. 10.

The terminal device may also determine the N frequency domain start positions based on the above formula 11, so as to obtain the frequency domain configuration of the resource unit shown in fig. 10. Then, the terminal device receives downlink transmission from the network device according to the N frequency domain start positions shown in fig. 10.

Alternatively, the network device may determine the N frequency domain start positions by equation 12 above.

After the network device determines the N frequency domain starting positions according to the formula 12, the network device performs downlink transmission to the terminal device according to the N frequency domain starting positions.

Further, the terminal device may also determine N initial frequency domain positions based on the above formula 12, and receive downlink transmission from the network device through the N initial frequency domain positions after determining the N initial frequency domain positions.

It can be understood that the above formula 11 indicates that the frequency domain positions of the N resource units are continuous and shifted one by one in ascending order; the above equation 12 indicates that the N resource unit frequency domain positions are consecutive and shifted one by one in descending order.

Exemplarily, in the second communication scenario, when the network device and the terminal device perform downlink transmission, the total number of resource units is 6, the configured frequency hopping granularity is N =2, and the frequency domain position of each frequency hopping is changed to be RB_offset. I.e. consecutive every 2 resource units frequency domain positionsAnd the frequency domain positions of 2 resource units with continuous frequency domain positions are switched in a descending order and offset manner, and frequency domain position frequency hopping of the resource units is carried out once every 2 resource units.

The network device determines the N frequency domain starting positions through the above formula 12, and may obtain the frequency domain configuration of the resource unit shown in fig. 11. Then, the network device performs downlink transmission to the terminal device according to the N frequency domain start positions shown in fig. 11.

The terminal device may also determine N frequency domain starting positions based on the above formula 12, to obtain the frequency domain configuration of the resource unit shown in fig. 11. Then, the terminal device receives downlink transmission from the network device according to the N frequency domain start positions shown in fig. 11.

By the above manner, with the frequency domain position configuration of the resource unit shown in fig. 11, when frequency hopping is started, frequency hopping is not performed every N consecutive transmissions, the frequency domain positions of the resource unit are different and consecutive, phase continuity is ensured, channel estimation equivalent to a large bandwidth is enabled, a value of frequency domain channel estimation with a larger dimension is realized, channel estimation is more accurate, and transmission performance is effectively improved.

In an alternative mode, when frequency hopping of the frequency domain positions of the resource units is performed every N resource units within a transmission range, the frequency domain positions of the N resource units are continuous, and the N resource units are first periodically ascending and then descending, the network device may determine the N frequency domain starting positions according to the above formula 13.

After the network device determines N frequency domain starting positions according to the formula 13, the network device performs downlink transmission to the terminal device according to the N frequency domain starting positions.

Further, the terminal device may also determine N frequency domain starting positions based on the above formula 13, and receive downlink transmission from the network device through the N frequency domain positions after determining the N frequency domain starting positions.

Exemplarily, in the second communication scenario, when the network device performs downlink transmission to the terminal device, the total number of resource units is 10, the configured frequency hopping granularity is N =5, and the frequency domain position of each frequency hopping is changed to be RB_offset. That is, the frequency domain positions of every 5 resource units are continuous, and the frequency domain position frequency hopping of the resource units is performed once every 5 resource units after the 5 resource units are in ascending order and descending order periodically.

The network device determines the starting positions of the N frequency domains according to the above formula 13, so as to obtain the frequency domain configuration of the resource unit shown in fig. 12. Then, the network device performs downlink transmission to the terminal device according to the N frequency domain start positions shown in fig. 12.

The terminal device may also determine N frequency domain starting positions based on the above formula 13, to obtain the frequency domain configuration of the resource unit shown in fig. 12. Then, the terminal device receives downlink transmission from the network device according to the N frequency domain start positions shown in fig. 12.

By the above manner, with the frequency domain position configuration of the resource unit shown in fig. 12, when frequency hopping is started, frequency hopping is not performed every N consecutive transmissions, the frequency domain positions of the resource unit are different and consecutive, phase continuity is ensured, channel estimation equivalent to a large bandwidth is enabled, a value of frequency domain channel estimation with a larger dimension is realized, channel estimation is more accurate, and transmission performance is effectively improved.

In an optional manner of this embodiment, when the frequency domain positions of the N resource units may also be within a transmission range, frequency hopping of the frequency domain positions of the resource units is performed every N resource units, the frequency domain positions of the N resource units are continuous, and the N resource units are first in a periodically descending order and then in an ascending order, the network device may determine the N frequency domain starting positions according to formula 14.

After the network device determines N frequency domain starting positions according to the formula 14, the network device performs downlink transmission to the terminal device according to the N frequency domain starting positions.

Further, the terminal device may also determine N frequency domain starting positions based on the above formula 14, and receive downlink transmission from the network device through the N frequency domain starting positions after the N frequency domain starting positions are determined.

For example, in a second communication scenario, when the network device performs uplink transmission to the terminal device, the total number of resource units is 10, the configured hopping granularity is N =5, and the frequency-domain position of each hopping frequency changes to RB_offset. That is, the frequency domain positions of every 5 resource units are continuous, and the frequency domain position frequency hopping of the resource units is performed once every 5 resource units after the 5 resource units are in descending order and ascending order periodically.

The network device determines the N frequency domain starting positions according to the above formula 14, and may obtain the frequency domain configuration of the resource unit shown in fig. 13. Then, the network device performs downlink transmission to the terminal device according to the N frequency domain starting positions shown in fig. 13.

The terminal device may also determine the N frequency domain start positions based on the above formula 14, to obtain the frequency domain configuration of the resource unit shown in fig. 13. Then, the terminal device receives downlink transmission from the network device according to the N frequency domain start positions shown in fig. 13.

By adopting the above manner, the resource unit frequency domain starting position configuration shown in fig. 13 is adopted, when frequency hopping is started, frequency hopping is not performed every N times of continuous transmission, the frequency domain positions of the resource units are different and continuous, phase continuity is ensured, channel estimation equivalent to large bandwidth is enabled, a value of frequency domain channel estimation with a larger dimension is realized, channel estimation is more accurate, and transmission performance is effectively improved.

In an optional manner of the embodiment of the present application, the same frequency hopping offset value is used for every N time units.

Through the above description of the present application, it can be understood that, in order to implement the above functions, the above-described devices include hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the present invention can be implemented in hardware or a combination of hardware and computer software, with the exemplary elements and algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

Based on the above embodiments, as shown in fig. 15, the present embodiment further provides a transmission apparatus, which includes a processor 1500, a memory 1501 and a communication interface 1502.

The processor 1500 is responsible for managing the bus architecture and general processing, and the memory 1501 may store data used by the processor 1500 in performing operations. The transceiver communication interface 1502 is used to receive and transmit data in data communication with the memory 1501 under the control of the processor 1500.

The processor 1500 may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of a CPU and an NP. The processor 1500 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof. The memory 1501 may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The processor 1500, the memory 1501 and the communication interface 1502 are connected to each other. In an optional implementation manner of this embodiment of the present application, the processor 1500, the memory 1501 and the communication interface 1502 may be connected to each other through a bus 1503; the bus 1503 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 15, but this is not intended to represent only one bus or type of bus.

Wherein, when the transmission apparatus is a terminal device, the processor 1500 is configured to read a program in the memory 1501 and execute:

determining N frequency domain positions according to a frequency domain starting position of an uplink transmission resource unit in a first time unit of a time unit and the number of resource units allocated to the uplink transmission in the time unit, wherein the N frequency domain positions comprise the uplink transmission frequency domain position of each time unit in the N continuous time units, N is a natural number greater than 1, and the frequency domain positions comprise a frequency domain starting position and a frequency domain ending position; performing uplink transmission to the network device according to the N frequency domain positions, where the N time units include a first time unit and a second time unit, a frequency domain end position of the uplink transmission in the first time unit and a frequency domain start position of the uplink transmission in the second time unit are consecutive in a frequency domain, and the first time unit is adjacent to the second time unit; or

Determining N frequency domain positions according to a frequency domain starting position of a downlink transmission resource unit in a first time unit of a time unit and the quantity of the resource units distributed by the time unit for downlink transmission in the time unit, wherein the N frequency domain positions comprise the downlink transmission frequency domain position of each time unit in the continuous N time units, N is a natural number greater than 1, and the frequency domain positions comprise a frequency domain starting position and a frequency domain ending position; and performing downlink transmission to the network device according to the N frequency domain positions, wherein the N time units include a first time unit and a second time unit, a frequency domain ending position of the downlink transmission in the first time unit and a frequency domain starting position of the downlink transmission in the second time unit are continuous in a frequency domain, and the first time unit is adjacent to the second time unit.

Alternatively, the transmission apparatus may read the program in the memory 1501 through the processor 1500, and perform uplink transmission with other devices by using the transmission method described in this embodiment of the present application, for example, perform uplink transmission to a network device. Alternatively, the transmission apparatus may read, by the processor 1500, the program in the memory 1501 to perform downlink transmission with other devices by using the transmission method described in this embodiment of the present application, for example, to receive downlink transmission from a network device.

Wherein, when the transmission apparatus is a network device, the processor 1500 is configured to read the program in the memory 1501 and execute:

determining N frequency domain starting positions according to the frequency domain starting position of the uplink transmission resource unit on the first time unit and the number of the resource units allocated for the uplink transmission on one time unit, wherein the N frequency domain starting positions comprise the frequency domain starting position of the uplink transmission of each time unit in the N continuous time units, and N is a natural number greater than 1; receiving uplink transmission sent by a terminal device according to the N frequency domain starting positions, wherein the N time units include the first time unit and a second time unit, a frequency domain ending position of the uplink transmission in the first time unit and a frequency domain starting position of the uplink transmission in the second time unit are continuous in a frequency domain, and the first time unit is adjacent to the second time unit; or

Alternatively, the transmission apparatus may read the program in the memory 1501 through the processor 1500, and perform uplink transmission with other devices by using the transmission method described in this embodiment of the present application, for example, receive uplink transmission from a terminal device.

Alternatively, the transmission apparatus may read the program in the memory 1501 through the processor 1500, and perform downlink transmission with other devices, for example, downlink transmission to a terminal device, by using the transmission method described in this embodiment of the present application.

As shown in fig. 16, the present invention provides a transmission device including: at least one processing unit 1600, at least one memory unit 1601, and at least one communication unit 1602, where the communication unit 1602 is configured to receive and transmit data under control of the processing unit 1600, and the memory unit 1601 stores program code.

In an optional manner of this embodiment of the present application, the transmission apparatus is a terminal device, and when the program code is executed by the processing unit 1600, the processing unit 1600 is caused to perform the following processes:

the time allocation method comprises the steps of determining N frequency domain positions according to a frequency domain starting position of an uplink transmission resource unit in a first time unit of a time unit and the number of resource units allocated to uplink transmission in the time unit, wherein the N frequency domain positions comprise the frequency domain position of the uplink transmission in each time unit of the continuous N time units, N is a natural number greater than 1, and the frequency domain positions comprise the frequency domain starting position and the frequency domain ending position; and performing uplink transmission on the network equipment according to the N frequency domain positions, wherein the N time units comprise a first time unit and a second time unit, the frequency domain ending position of the uplink transmission in the first time unit and the frequency domain starting position of the uplink transmission in the second time unit are continuous in the frequency domain, and the first time unit is adjacent to the second time unit.

As a possible implementation method, the processing unit 1600 is further configured to:

the number of time units N is determined.

As a possible implementation method, the processing unit 1600 is specifically configured to:

determining the number N of time units according to the number of resource units allocated to uplink transmission on one time unit; alternatively, the method further includes receiving first information from a network device, where the first information is used to indicate the number N of the time units.

determining the number N of the time units according to a first threshold and the number of the resource units allocated to the uplink transmission in one time unit; the product of the number N of the time units and the number of the resource units allocated for uplink transmission in one time unit is not less than a first threshold.

and determining the number N of the time units according to a time delay expansion value and the number of the resource units distributed for the uplink transmission in one time unit, wherein the time delay expansion value is used for representing the time delay difference value of the first path and the last path in the process of receiving and transmitting signals.

sending the second information to the network equipment; the second information is used for indicating at least one of the following: the number of time units N; delay spread value is taken; and/or sending the third information to the network device; the third information is used for indicating the number L of the maximum time units capable of maintaining phase continuity; the delay spread value is used for representing the delay difference value of a first path and a last path in the process of receiving and transmitting signals.

and determining N frequency domain starting positions according to the frequency domain starting position of the uplink transmission resource unit in the first time unit, the quantity of the resource units distributed for uplink transmission in one time unit and the frequency hopping deviation value.

RB_start(n)＝RB_start(n-1)+n_PRB,n＝2,3,…,N；

wherein n represents the nth time unit, the RB_start(n) resource unit representing uplink transmission on nth time unitFrequency domain start position of element, n_PRBRepresenting the number of resource units allocated for uplink transmission over a time unit.

RB_start(n)＝RB_start+(n-1)n_PRB,n＝2,3,…,N；

wherein, the RB_startIndicating the frequency domain starting position of the resource unit of the uplink transmission on the first time unit in N time units, N indicating the nth time unit, N_PRBExpressed as the number of resource units allocated for uplink transmission over one time unit,

As a possible implementation, the processing unit 1600 is further configured to:

the hopping offset values are the same every N time units.

the method comprises the steps of determining N frequency domain positions according to a frequency domain starting position of a downlink transmission resource unit in a first time unit of a time unit and the number of resource units allocated to downlink transmission in the time unit, wherein the N frequency domain positions comprise the downlink transmission frequency domain position of each time unit in the N continuous time units, N is a natural number greater than 1, and the frequency domain positions comprise a frequency domain starting position and a frequency domain ending position; and performing downlink transmission on the network equipment according to the N frequency domain positions, wherein the N time units comprise a first time unit and a second time unit, the frequency domain ending position of the downlink transmission in the first time unit and the frequency domain starting position of the downlink transmission in the second time unit are continuous in the frequency domain, and the first time unit is adjacent to the second time unit.

the number of time units N is determined.

determining the number N of time units according to the number of resource units allocated for downlink transmission on one time unit; alternatively, the method further includes receiving first information from a network device, where the first information is used to indicate the number N of the time units.

determining the number N of the time units according to a first threshold value and the number of the resource units allocated for downlink transmission in one time unit; the product of the number N of the time units and the number of the resource units allocated for downlink transmission in one time unit is not less than a first threshold.

and determining the number N of the time units according to a delay spread value and the number of the resource units distributed for downlink transmission in one time unit, wherein the delay spread value is used for representing the delay difference value of a first path and a last path in the process of receiving and transmitting signals.

and determining N frequency domain starting positions according to the frequency domain starting position of the downlink transmission resource unit in the first time unit, the quantity of the resource units distributed for downlink transmission in one time unit and the frequency hopping offset value.

RB_start(n)＝RB_start(n-1)+n_PRB,n＝2,3,…,N；

wherein n represents the nth time unit, the RB_start(n) denotes the frequency domain starting position of the resource unit for downlink transmission on the nth time unit, n_PRBRepresenting the number of resource units allocated for downlink transmission over a time unit.

RB_start(n)＝RB_start+(n-1)n_PRB,n＝2,3,…,N；

wherein, the RB_startIndicating the frequency domain starting position of the resource unit of the downlink transmission on the first time unit in N time units, N indicating the nth time unit, N_PRBExpressed as the number of resource units allocated for downlink transmission over one time unit,

the hopping offset values are the same every N time units.

In an optional manner of the embodiment of the present application, the processing apparatus is a network device, and when the program code is executed by the processing unit 1600, the processing unit 1600 is caused to perform the following processes:

the method comprises the steps of determining N frequency domain starting positions according to a frequency domain starting position of an uplink transmission resource unit on a first time unit and the number of resource units allocated for uplink transmission on one time unit, wherein the N frequency domain starting positions comprise the frequency domain starting position of the uplink transmission of each time unit in N continuous time units, and N is a natural number greater than 1; and receiving uplink transmission sent by the terminal device according to the N frequency domain starting positions, wherein the N time units comprise the first time unit and a second time unit, the frequency domain ending position of the uplink transmission in the first time unit and the frequency domain starting position of the uplink transmission in the second time unit are continuous in the frequency domain, and the first time unit is adjacent to the second time unit.

the number of time units N is determined.

determining the number N of time units according to the number of resource units allocated for uplink transmission on one time unit.

As a possible implementation, the first threshold is predefined; or the first threshold is reported by the terminal equipment; or the first threshold is indicated to the terminal equipment by network equipment.

determining the number N of the time units according to a time delay expansion value and the number of the resource units distributed for the uplink transmission in one time unit; the delay spread value is used for representing the delay difference value of the first path and the last path in the process of receiving and transmitting signals.

receiving second information from the terminal equipment, wherein the second information is used for indicating at least one of the following items: the number of time units N; and (4) time delay expansion value taking.

third information is received from the terminal device indicating a maximum number of time units L for which phase continuity can be maintained.

and determining N frequency domain starting positions according to the frequency domain starting position of the uplink transmission resource unit on the first time unit, the number of the resource units distributed for the uplink transmission on one time unit and the frequency hopping offset value.

RB_start(n)＝RB_start(n-1)+n_PRB,n＝2,3,…,N；

RB_start(n)＝RB_start+(n-1)n_PRB,n＝2,3,…,N；

wherein, the RB_startIndicating the frequency domain starting position of the resource unit of the uplink transmission on the first time unit in N time units, N indicating the nth time unit, N_PRBExpressed as the number of resource units, RBs, allocated for uplink transmission over a time unit_offsetiAnd the frequency domain deviation value of the ith frequency hopping position point relative to the first uplink transmission is shown, and I is the total number of the frequency hopping position points.

the hopping offset values used are the same for every N time units.

the method comprises the steps of determining N frequency domain starting positions according to a frequency domain starting position of a downlink transmission resource unit in a first time unit and the number of resource units allocated for downlink transmission in one time unit, wherein the N frequency domain starting positions comprise the frequency domain starting position of the downlink transmission in each time unit of N continuous time units, and N is a natural number greater than 1; receiving downlink transmission sent by a terminal device according to the N frequency domain starting positions, where the N time units include the first time unit and a second time unit, a frequency domain ending position of the downlink transmission in the first time unit and a frequency domain starting position of the downlink transmission in the second time unit are continuous in a frequency domain, and the first time unit is adjacent to the second time unit.

the number of time units N is determined.

determining the number N of the time units according to a first threshold and the number of the resource units allocated to the downlink transmission in one time unit; wherein the product of the number N of the time units and the number of the resource units allocated for the downlink transmission in one time unit is not less than a first threshold.

determining the number N of the time units according to the time delay expansion value and the number of the resource units distributed for the downlink transmission in one time unit; the delay spread value is used for representing the delay difference value of the first path and the last path in the process of receiving and transmitting signals.

third information is received from the terminal device, the third information indicating a maximum number of time units L capable of maintaining phase continuity.

and determining N frequency domain starting positions according to the frequency domain starting position of the uplink transmission resource unit in the first time unit, the quantity of the resource units distributed for downlink transmission in one time unit and the frequency hopping deviation value.

RB_start(n)＝RB_start(n-1)+n_PRB,n＝2,3,…,N；

RB_start(n)＝RB_start+(n-1)n_PRB,n＝2,3,…,N；

indicating the ith hopAnd the frequency domain offset value of the position point relative to the first downlink transmission, wherein I is the total number of the frequency hopping position points.

the hopping offset values used are the same for every N time units.

The functions of the communication unit 1602 and the processing unit 1600 shown in fig. 16 described above may be performed by the processor 1500 executing a program in the memory 1501, or may be performed by the processor 1500 alone.

The transmission device shown in fig. 16 may be the terminal device in the above embodiment, or a chip in the terminal device; or may be the network device in the above embodiments, or a chip in the network device.

In some possible embodiments, various aspects of the transmission method provided by the embodiments of the present invention may also be implemented in the form of a program product, which includes program code for causing a computer device to perform the steps in the transmission method according to various exemplary embodiments of the present invention described in this specification, when the program code runs on the computer device.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

A program product for performing transmission according to an embodiment of the present invention may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a server device. However, the program product of the present invention is not limited in this regard and, in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an information delivery, apparatus, or device.

Readable signal media may include data signals propagating in baseband or as part of a cell in which readable program code is carried. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium that can transmit, propagate, or transport the program for use by or in connection with the periodic network action system, apparatus, or device.

Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In situations involving remote computing devices, the remote computing devices may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to external computing devices.

The embodiment of the application also provides a storage medium readable by the computing device aiming at the transmission method executed by the terminal device, namely, the content is not lost after the power is off. The storage medium stores therein a software program comprising program code which, when executed on a computing device, when read and executed by one or more processors, implements any of the above transmission schemes of embodiments of the present application.

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

Accordingly, the subject application may also be embodied in hardware and/or in software (including firmware, resident software, micro-code, etc.). Furthermore, the present application may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by or in connection with an instruction execution system. In the context of this application, a computer-usable or computer-readable medium may be any medium that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations may be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and drawings are merely illustrative of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include such modifications and variations.

Claims

1. A method of transmission, comprising:

determining N frequency domain starting positions according to the frequency domain starting position of the uplink transmission resource unit on the first time unit and the number of the resource units allocated for the uplink transmission on one time unit, wherein the N frequency domain starting positions comprise the frequency domain starting position of the uplink transmission of each time unit in the N continuous time units, and N is a natural number greater than 1;

and sending uplink transmission to the network device according to the N frequency domain starting positions, wherein the N time units include the first time unit and a second time unit, the frequency domain ending position of the uplink transmission in the first time unit and the frequency domain starting position of the uplink transmission in the second time unit are continuous in the frequency domain, and the first time unit is adjacent to the second time unit.

2. The method of claim 1, wherein the first time unit is adjacent to the second time unit, comprising:

the first time unit is a time unit before the second time unit, or the first time unit is a time unit after the second time unit.

3. The method of claim 1 or 2, wherein the frequency domain end position of the uplink transmission in the first time unit and the frequency domain start position of the uplink transmission in the second time unit are consecutive in the frequency domain, comprising:

the difference between the index of the resource unit corresponding to the frequency domain end position of the uplink transmission in the first time unit and the index of the resource unit corresponding to the frequency domain start position of the uplink transmission in the second time unit is 1.

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

the number of time units N is determined.

5. The method of claim 4, wherein the determining the number N of time units comprises:

determining the number N of time units according to the number of resource units allocated for uplink transmission on one time unit;

alternatively, the method may further comprise,

receiving first information from a network device, wherein the first information is used for indicating the number N of the time units.

6. The method of claim 5, wherein the determining the number N of time units according to the number of resource units allocated for uplink transmission on a time unit comprises:

determining the number N of the time units according to a first threshold value and the number of the resource units allocated for uplink transmission in one time unit; the product of the number N of the time units and the number of the resource units allocated for uplink transmission in one time unit is not less than a first threshold.

7. The method of claim 6, wherein the first threshold is predefined; or

The first threshold is indicated by the network device by signaling; or

The first threshold is reported to the network device by the terminal device.

8. The method according to any one of claims 4 to 7, wherein said determining the number N of time units comprises:

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

sending the second information to the network equipment; the second information is used for indicating at least one of the following: the number of time units N; delay spread value is taken; and/or

Sending the third information to the network device; the third information is used for indicating the maximum number L of time units capable of maintaining phase continuity;

and the time delay expansion value is used for representing the time delay difference value of the first path and the last path in the process of receiving and transmitting signals.

10. The method according to any one of claims 1 to 9, wherein the determining N frequency domain starting positions according to the frequency domain starting position of the resource unit for uplink transmission in the first time unit and the number of resource units allocated for uplink transmission in one time unit comprises:

11. The method according to any of claims 1-9, wherein the number of time units, N, the number of resource units allocated for uplink transmission in one time unit, and the N frequency domain start positions satisfy the following formula:

RB_start(n)＝RB_start(n-1)+n_PRB,n＝2,3,…,N；

wherein n represents the nth time unit, the RB_start(n) denotes the frequency domain starting position of the resource unit for uplink transmission on the nth time unit, n_PRBExpressed as uplink transmission sub-division over one time unitThe number of allocated resource units.

12. The method of claim 11, wherein when the uplink transmission in N time units is a repeat transmission, the number N of time units, the number of resource units allocated for uplink transmission in one time unit, and the N frequency-domain starting positions satisfy the following formula:

RB_start(n)＝RB_start+(n-1)n_PRB,n＝2,3,…,N；

13. The method of claim 10, wherein the number of time units N, the number of resource units allocated for uplink transmission in one time unit, and the N frequency domain start positions satisfy the following equation:

n＝iN+1,iN+2,…,(i+1)N，

i＝0,1,2,…,I；

14. The method of any one of claims 1 to 13, further comprising:

the hopping offset values are the same every N time units.

15. A method of transmission, comprising:

and receiving uplink transmission sent by the terminal device according to the N frequency domain starting positions, wherein the N time units comprise the first time unit and a second time unit, the frequency domain ending position of the uplink transmission in the first time unit and the frequency domain starting position of the uplink transmission in the second time unit are continuous in the frequency domain, and the first time unit is adjacent to the second time unit.

16. The method of claim 15, wherein the first time unit is adjacent to the second time unit, comprising:

17. The method of claim 15 or 16, wherein the frequency domain end position of the uplink transmission in the first time unit and the frequency domain start position of the uplink transmission in the second time unit are consecutive in the frequency domain, comprising:

18. The method of any one of claims 15 to 17, further comprising:

the number of time units N is determined.

19. The method of claim 18, wherein the determining the number N of time units comprises:

20. The method of claim 19, wherein the determining the number N of time units according to the number of resource units allocated for uplink transmission in one time unit comprises:

21. The method of claim 20, wherein the first threshold is predefined; or

The first threshold is reported by the terminal equipment; or

The first threshold value is indicated to the terminal equipment by network equipment.

22. The method according to any one of claims 18 to 21, wherein said determining the number N of time units comprises:

determining the number N of the time units according to the time delay expansion value and the number of the resource units distributed for the uplink transmission in one time unit; the delay spread value is used for representing the delay difference value of the first path and the last path in the process of receiving and transmitting signals.

23. The method of any one of claims 15 to 22, further comprising:

receiving second information from the terminal equipment, wherein the second information is used for indicating at least one of the following items:

the number of time units N;

and (4) taking a delay spread value.

24. The method of any one of claims 15 to 23, further comprising:

25. The method according to any of claims 15-24, wherein said determining N frequency domain starting positions based on the frequency domain starting position of the resource unit of the uplink transmission in the first time unit and the number of resource units allocated for the uplink transmission in one time unit comprises:

26. The method according to any of claims 15-25, wherein the number N of time units, the number of resource units allocated for uplink transmission in a time unit, and the N frequency domain starting positions satisfy the following formula:

RB_start(n)＝RB_start(n-1)+n_PRB,n＝2,3,…,N；

27. The method of claim 26, wherein when the uplink transmission in N time units is a repeat transmission, the number N of time units, the number of resource units allocated for uplink transmission in one time unit, and the N frequency-domain starting positions satisfy the following formula:

RB_start(n)＝RB_start+(n-1)n_PRB,n＝2,3,…,N；

wherein RB_startIndicating the frequency domain starting position of the resource unit for uplink transmission on the first time unit of the N time units.

28. The method of claim 25, wherein the number of time units N, the number of resource units allocated for uplink transmission in one time unit, and the N frequency domain start positions satisfy the following equation:

n＝iN+1,iN+2,…,(i+1)N，

i＝0,1,2,…,I；

29. The method of any one of claims 15 to 28, further comprising:

the hopping offset values used are the same for every N time units.

30. A transmission apparatus, comprising: one or more processors; a memory; a transceiver;

wherein the processor is configured to read a program in a memory and execute the method according to any one of claims 1 to 14; or performing the method of any one of claims 15 to 29.

31. A communication system, comprising:

the terminal equipment is used for determining N frequency domain starting positions according to the frequency domain starting position of the uplink transmission resource unit in the first time unit and the quantity of the resource units distributed for uplink transmission in one time unit; sending uplink transmission to the network equipment according to the N frequency domain starting positions;

the network equipment is used for determining N frequency domain starting positions according to the frequency domain starting position of the uplink transmission resource unit in the first time unit and the quantity of the resource units distributed for uplink transmission in one time unit; receiving uplink transmission sent by the terminal equipment according to the N frequency domain initial positions;

the N frequency domain starting positions comprise the frequency domain starting position of uplink transmission of each time unit in the continuous N time units, and N is a natural number larger than 1; the N time units comprise the first time unit and a second time unit, the frequency domain ending position of uplink transmission on the first time unit and the frequency domain starting position of uplink transmission on the second time unit are continuous on the frequency domain, and the first time unit is adjacent to the second time unit.

32. A computer readable storage medium comprising computer instructions which, when run on a transmitting device, cause the transmitting device to perform the method of any one of claims 1 to 14; or performing the method of any one of claims 15 to 29.

33. A computer program product, comprising computer instructions which, when executed by a transmitting apparatus, cause the transmitting apparatus to perform the method of any one of claims 1-14; or performing the method of any one of claims 15 to 29.