CN112020145A

CN112020145A - Communication method and device

Info

Publication number: CN112020145A
Application number: CN201910468221.4A
Authority: CN
Inventors: 谢信乾; 郭志恒; 费永强; 毕文平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-12-01
Also published as: WO2020238992A1

Abstract

A communication method and device, the method includes: the method comprises the steps that a terminal device receives a first message from a network device, the terminal device sends uplink data signals to the network device on N subcarriers indicated in the first message, wherein the N subcarriers are distributed in M Resource Blocks (RBs), the number of the subcarriers used for sending the uplink data signals in each RB in the M RBs is L, M is larger than or equal to 2, L is smaller than K, K is the number of the subcarriers included in one RB, and N, M, L, K are positive integers. By adopting the technical scheme, the PUSCH can occupy part of subcarriers in one RB to send uplink data signals, so that the frequency domain range of a channel experienced by the PUSCH can be widened, diversity gain brought by frequency domain selectivity of the channel is fully acquired, and the transmission performance of the PUSCH is improved.

Description

Communication method and device

Technical Field

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

Background

In the prior art, an uplink data signal sent by a terminal device to a network device is carried on a Physical Uplink Shared Channel (PUSCH), and the PUSCH occupies an integer number of Physical Resource Blocks (PRBs) in a frequency domain and is mapped on all subcarriers included in the PRBs. In this way, when the number of resource blocks occupied by the PUSCH is small, the number of subcarriers occupied by the PUSCH is also small, which may result in a narrow bandwidth of the PUSCH in the frequency domain and may not sufficiently obtain the diversity gain due to the frequency domain selectivity of the channel.

Disclosure of Invention

The embodiment of the application provides a communication method and device, which utilize diversity gain brought by frequency domain selectivity of a channel to improve the transmission performance of uplink data signals.

In a first aspect, the present application provides a communication method, which is applicable to a terminal device, and includes: the method comprises the steps that terminal equipment receives a first message from network equipment, wherein the first message is used for indicating the terminal equipment to send uplink data signals to the network equipment on N subcarriers; and the terminal equipment sends the uplink data signal to the network equipment on the N subcarriers, wherein the N subcarriers are distributed in M Resource Blocks (RB), the number of the subcarriers used for sending the uplink data signal in each RB in the M RBs is L, M is greater than or equal to 2, L is smaller than K, K is the number of the subcarriers included in one RB, and N, M, L, K are positive integers.

In this embodiment of the present application, N subcarriers used for transmitting an uplink data signal may be distributed in M RBs, and a subcarrier used for transmitting an uplink data signal in each RB of the M RBs is a partial subcarrier in the RB, that is, a PUSCH may occupy a partial subcarrier in one RB to transmit an uplink data signal, so that a frequency domain range of a channel experienced by the PUSCH can be widened, a diversity gain caused by frequency domain selectivity of the channel is sufficiently obtained, and a transmission performance of the PUSCH is improved.

In one possible design, the first message may be used to indicate L subcarriers used to transmit the uplink data signal in each of the M RBs. For example, the network device may indicate, to the terminal device, the distributed positions or numbers of L subcarriers for transmitting the uplink data signal in each RB in the RB through the first message.

For each of the M RBs, the number of each subcarrier in the RB is from 0 to K-1; the number of L subcarriers in the RB may be S, S + S, …, S + (L-1) × S, S ═ K/L, S being a non-negative integer less than S, or the number of L subcarriers in the RB may be S, S +1, S + S, S +1+ S …, S + (L-1) × S, S +1+ (L-1) × S, S ═ 2 × K/L, S being a non-negative integer less than S-1. If the N RBs distributed in the M RBs for transmitting the uplink data signal are regarded as at least one discrete resource block DRB, in this embodiment of the present application, the PUSCH may be mapped to at least one DRB, and the mapping manner of the subcarriers of the PUSCH, that is, the distribution manner of the L subcarriers used for transmitting the uplink data signal in each RB in the RB can implement more flexible scheduling of the DRB. For example, the frequency domain range of the channel experienced by the PUSCH can be changed by setting the values of S and S, thereby improving the transmission performance of the PUSCH.

In one possible design, the M RBs are located among X RBs included in the first frequency domain resource, X being a positive integer; the first message is further configured to indicate one or more of the following: the position of M RBs in X RBs, the value of M, the value of L, the value of M × L/K, and the value of S. In this manner, the terminal device may determine N subcarriers for transmitting the uplink data signal among the M RBs according to the information indicated in the first message.

In the embodiment of the present application, the positions or numbers of the X RBs in the first frequency domain resource may be scheduled by the network device, or may be determined by the terminal device according to a preset rule, so that the flexibility of resource scheduling can be improved. For example, in one possible design, the first frequency domain resource includes consecutive Z RBs, Z being a positive integer greater than or equal to X; the terminal device may receive a second message from the network device, where the second message is used to indicate the positions or numbers of X RBs in the first frequency domain resource and the value of X, where X × L/K is a positive integer; further, the terminal device may determine X RBs from the second message.

In another possible design, the first frequency-domain resource includes consecutive Z RBs numbered from 0 to Z-1, Z being a positive integer greater than or equal to X. The X RBs may be X RBs numbered 0 to X-1 in the first frequency domain resource; alternatively, the X RBs may also be X RBs numbered from Z-X to Z-1 in the first frequency domain resource; alternatively, the X RBs may also be X RBs numbered floor (a/2) to B × Z + floor (a/2) -1 in the first frequency domain resource, where X ═ floor (Z × L/K) × K/L, B ═ floor (Z × L/K), and a ═ Z-B × L/K.

In a second aspect, the present application provides a communication method, which is applicable to a network device, and includes: the network equipment sends a first message to the terminal equipment, wherein the first message is used for indicating the terminal equipment to send an uplink data signal to the network equipment on N subcarriers; the network device receives an uplink data signal sent by the terminal device on N subcarriers, where the N subcarriers are distributed in M resource blocks RB, the number of subcarriers used for sending the uplink data signal in each RB of the M RBs is L, M is greater than or equal to 2, L is less than K, K is the number of subcarriers included in one RB, and N, M, L, K are positive integers.

In one possible design, the first message may be used to indicate L subcarriers for transmitting the uplink data signal in each of the M RBs. For example, the network device may indicate, to the terminal device, the distributed positions or numbers of L subcarriers for transmitting the uplink data signal in each RB in the RB through the first message.

For each of the M RBs, the number of each subcarrier in the RB is from 0 to K-1; the number of L subcarriers in the RB may be S, S + S, …, S + (L-1) × S, S ═ K/L, S is a non-negative integer less than S. Alternatively, the number of L subcarriers in the RB may be S, S +1, S + S, S +1+ S …, S + (L-1) × S, S +1+ (L-1) × S, S ═ 2 × K/L, and S is a non-negative integer smaller than S-1. If the N RBs distributed in the M RBs for transmitting the uplink data signal are regarded as at least one discrete resource block DRB, in this embodiment of the present application, the PUSCH may be mapped to at least one DRB, and the mapping manner of the subcarriers of the PUSCH, that is, the distribution manner of the L subcarriers used for transmitting the uplink data signal in each RB in the RB can implement more flexible scheduling of the DRB. For example, the frequency domain range of the channel experienced by the PUSCH can be changed by setting the values of S and S, thereby improving the transmission performance of the PUSCH.

In one possible design, the M RBs are located among X RBs included in the first frequency domain resource, X being a positive integer; the first message is further configured to indicate one or more of the following: the position of M RBs in X RBs, the value of M, the value of L, the value of M × L/K, and the value of S. In this way, the terminal device can be made to determine the N subcarriers for transmitting the uplink data signal among the M RBs according to the information indicated in the first message.

In a third aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus has a function of implementing the terminal device in the first aspect or any one of the possible designs of the first aspect, and the communication apparatus may be a terminal device, such as a handheld terminal device, a vehicle-mounted terminal device, or the like, or may be a device, such as a chip, included in the terminal device, or may be a device including the terminal device. The functions of the terminal device may be implemented by hardware, or may be implemented by hardware executing corresponding software, where the hardware or software includes one or more modules corresponding to the functions.

The communication device may also have the functionality of a network device in any of the possible designs implementing the second aspect or the second aspect described above. The communication device may be a network device, such as a base station, or may be a device included in the network device, such as a chip. The functions of the network device may be implemented by hardware, or may be implemented by hardware executing corresponding software, where the hardware or software includes one or more modules corresponding to the functions.

In one possible design, the communication device includes a processing module and a transceiver module in a structure, where the processing module is configured to support the communication device to perform a corresponding function in any one of the designs of the first aspect or perform a corresponding function in any one of the designs of the second aspect or the second aspect. The transceiver module is configured to support communication between the communication apparatus and other communication devices, for example, when the communication apparatus is a terminal device, the transceiver module may send an uplink data signal to a network device on N subcarriers. The communication device may also include a memory module, coupled to the processing module, that stores program instructions and data necessary for the communication device. As an example, the processing module may be a processor, the communication module may be a transceiver, the storage module may be a memory, and the memory may be integrated with the processor or disposed separately from the processor, which is not limited in this application.

In another possible design, the communication device may be configured to include a processor and a memory, where the processor is coupled to the memory and configured to execute computer program instructions stored in the memory to cause the communication device to perform the method in the first aspect or any one of the possible designs of the first aspect or the second aspect or any one of the possible designs of the second aspect. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface. When the communication device is a terminal device, the communication interface may be a transceiver or an input/output interface; when the communication means is a chip included in the terminal device, the communication interface may be an input/output interface of the chip. Alternatively, the transceiver may be a transmit-receive circuit and the input/output interface may be an input/output circuit.

In a fourth aspect, an embodiment of the present application provides a chip system, including: a processor coupled to a memory for storing a program or instructions that, when executed by the processor, cause the system-on-chip to implement the method in any one of the possible designs of the first aspect described above or the method in any one of the possible designs of the second aspect described above.

Optionally, the system on a chip may have one or more processors. The processor may be implemented by hardware or by software. When implemented in hardware, the processor may be a logic circuit, an integrated circuit, or the like. When implemented in software, the processor may be a general-purpose processor implemented by reading software code stored in a memory.

Optionally, the memory in the system-on-chip may also be one or more. The memory may be integrated with the processor or may be separate from the processor, which is not limited in this application. For example, the memory may be a non-transitory processor, such as a read only memory ROM, which may be integrated with the processor on the same chip or separately disposed on different chips, and the type of the memory and the arrangement of the memory and the processor are not particularly limited in this application.

In a fifth aspect, embodiments of the present application provide a computer-readable storage medium having computer-readable instructions stored thereon, which, when read and executed by a computer, cause the computer to perform the method in any one of the possible designs of the first aspect or the method in any one of the possible designs of the second aspect.

In a sixth aspect, embodiments of the present application provide a computer program product, which when read and executed by a computer, causes the computer to perform the method in any one of the possible designs of the first aspect or the second aspect.

In a seventh aspect, an embodiment of the present application provides a communication system, where the communication system includes the network device and at least one terminal device described in the foregoing aspects.

Drawings

Fig. 1 is a schematic network architecture of a communication system according to an embodiment of the present application;

fig. 2 is a schematic diagram of a bandwidth portion BWP and resource blocks RB provided in an embodiment of the present application;

fig. 3 is a flowchart illustrating a communication method according to an embodiment of the present application;

fig. 4 is a schematic diagram of a mapping manner of sub-carriers according to an embodiment of the present disclosure;

fig. 5 is a schematic diagram of distribution positions of L subcarriers according to an embodiment of the present application;

fig. 6 is a schematic diagram of another mapping manner of subcarriers according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a plurality of discrete bandwidth portions DBWP configured by a network device in an embodiment of the application;

fig. 8 is a flowchart illustrating another communication method according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 10 is another schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 12 is another schematic structural diagram of another communication device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD), universal mobile telecommunications system (universal mobile telecommunications system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, WIMAX) communication systems, fifth generation (5G) or new NR systems, or the like, for future communication systems or similar communications systems.

Please refer to fig. 1, which is a schematic diagram of a network architecture of a communication system according to an embodiment of the present application. The communication system includes a network device 110, a terminal device 120, a terminal device 130, and a terminal device 140. A network device may communicate with at least one terminal device, such as terminal device 120, via an Uplink (UL) and a Downlink (DL).

The network device in fig. 1 may be an access network device, such as a base station. Wherein the access network equipment corresponds to different equipment on different systems, e.g. on the fourth generation mobile communication technology (the 4)^thgeneration, 4G) system may correspond to an eNB, and in a 5G system corresponds to an access network device in 5G, for example, a gNB. Although only the terminal device 120, the terminal device 130, and the terminal device 140 are shown in fig. 1, it should be understood that the network device may provide services for a plurality of terminal devices, and the number of terminal devices in the communication system is not limited in the embodiment of the present application. Similarly, the terminal device in fig. 1 is illustrated by taking a mobile phone as an example, and it should be understood that the terminal device in the embodiment of the present application is not limited thereto.

Hereinafter, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

1) A terminal device, which may also be referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc., is a device that provides voice and/or data connectivity to a user. The terminal device may communicate with a core network via a Radio Access Network (RAN), and exchange voice and/or data with the RAN. For example, the terminal device may be a handheld device, a vehicle-mounted device, or the like having a wireless connection function. Currently, some examples of terminal devices are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (smart security), a wireless terminal in city (smart city), a wireless terminal in home (smart home), and the like.

2) The network device is a device in the network for accessing the terminal device to the wireless network. The network device may be a node in a radio access network, which may also be referred to as a base station, and may also be referred to as a Radio Access Network (RAN) node (or device). The network device 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 network device may also coordinate attribute management for the air interface. For example, the network device may include an evolved base station (NodeB or eNB or e-NodeB, evolved Node B) in a Long Term Evolution (LTE) system or an evolved LTE system (LTE-Advanced, LTE-a), or may also include a next generation node B (gNB) in a New Radio (NR) system of a fifth generation mobile communication technology (5th generation, 5G), or may also include a Transmission Reception Point (TRP), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a baseband unit (BBU), or a WiFi Access Point (AP), or the like, or may further include a Centralized Unit (CU) and a Distributed Unit (DU) in a cloud access network (cloudlan) system, which is not limited in the embodiment of the present application.

3) Bandwidth part (BWP), one BWP includes several consecutive Resource Blocks (RBs) in the frequency domain, and the RBs may be Physical Resource Blocks (PRBs), as shown in fig. 2, one PRB includes K subcarriers in the frequency domain, and K may be 12. In the LTE system, one resource block includes 12 subcarriers, and in the 5G NR system, one resource block also includes 12 subcarriers. As the communication system evolves, the number of subcarriers included in one resource block may also be other values, which is not limited in this application.

4) And the uplink data channel is used for bearing uplink data information. For example, a Physical Uplink Shared Channel (PUSCH), an enhanced physical uplink control channel (EPUSCH), or other uplink data channels. In this document, the uplink data channel is described by taking the PUSCH as an example.

5) The terms "system" and "network" in the embodiments of the present application may be used interchangeably. The "plurality" means two or more, and in view of this, the "plurality" may also be understood as "at least two" in the embodiments of the present application. "at least one" is to be understood as meaning one or more, for example one, two or more. For example, the inclusion of at least one means that one, two or more are included, and does not limit which is included. For example, at least one of A, B and C is included, then inclusion can be A, B, C, A and B, A and C, B and C, or A and B and C. Similarly, the understanding of the description of "at least one" and the like is similar. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified.

Unless stated to the contrary, the embodiments of the present application refer to ordinal numbers such as "first", "second", etc., for distinguishing between a plurality of objects, but do not limit the order, timing, priority or importance of the plurality of objects, and the descriptions of "first", "second", etc., do not limit the objects to be necessarily different.

Please refer to fig. 3, which is a flowchart illustrating a communication method according to an embodiment of the present application. The method includes steps S301 to S304 as follows:

step S301, the network device sends a first message to the terminal device, where the first message is used to instruct the terminal device to send an uplink data signal to the network device on N subcarriers.

In this embodiment of the application, the uplink data signal is carried on an uplink data channel, for example, the uplink data channel may be a PUSCH, and the N subcarriers are subcarriers occupied by the PUSCH, that is, subcarriers used for transmitting the uplink data signal. It should be noted that the N subcarriers are distributed in M Resource Blocks (RBs), and only a part of the subcarriers in each of the M RBs is occupied, where M is a positive integer greater than or equal to 2. That is, the number of subcarriers used to transmit an uplink data signal in each of the M RBs is L, L being smaller than K, K being the number of subcarriers included in one RB, and K may be 12, for example.

It is understood that each of the M RBs includes K consecutive subcarriers, but only L of the subcarriers are used for transmitting an uplink data signal. In view of this, in the embodiment of the present application, the first message may also be used to indicate L subcarriers used for transmitting the uplink data signal in each RB of the M RBs, and provide a mapping manner from the PUSCH to the L subcarriers.

One possible mapping is that the subcarriers included in each RB are numbered in the order from 0 to K-1, where the number of L subcarriers used for transmitting the uplink data signal in the RB is specifically S, S + S, …, S + (L-1) × S in the RB. Here, S is the step size, S ═ K/L, S may be 2 or more, S is a non-negative integer less than S, and S + (L-1) × S is K-1 or less.

For example, the value of S may be 2, 3, 4, 6, 8, 12. As an example, fig. 4 shows the distribution of subcarriers for transmitting an uplink data signal when S is 0 and S is 2, 3, 4, and 6, respectively. As shown in fig. 4, when one RB includes 12 subcarriers, and S is 2, the PUSCH occupies 6 subcarriers, i.e., L is 6, in one RB, the 6 subcarriers are indicated by solid lines in fig. 4 and are arranged at intervals of step 2, and the remaining 6 subcarriers are indicated by dashed lines. When S is 3, the PUSCH occupies 4 subcarriers in one RB, i.e., L is 4, the 4 subcarriers are indicated by solid lines in fig. 4 and are arranged at intervals of step 3, and the remaining 8 subcarriers are indicated by dashed lines. When S is 4, the PUSCH occupies 3 subcarriers, i.e., L is 3, in one RB, the 3 subcarriers are indicated by solid lines in fig. 4 and are arranged at intervals of step 4, and the remaining 9 subcarriers are indicated by dashed lines. When S is 6, PUSCH occupies 2 subcarriers, i.e., L is 2, in one RB, the 2 subcarriers are indicated by solid lines in fig. 4 and are arranged at intervals of step 6, and the remaining 10 subcarriers are indicated by dashed lines.

As can be seen from fig. 4, PUSCH may occupy a part of subcarriers in one RB, and the subcarriers occupied by PUSCH are not arranged consecutively in the RB. If K non-consecutive subcarriers are referred to as a Discrete Resource Block (DRB), when the mapping manner of the subcarriers is adopted, one DRB occupied by the PUSCH may be composed of the subcarriers used for transmitting the uplink data signal in S RBs. And if the number of RBs related to the DRB is recorded as the degree of the DRB, the degree of the DRB is S. Therefore, fig. 4 shows one DRB occupied by the PUSCH when S is 2, S is 3, S is 4, and S is 6, respectively, and when S is different, the number of RBs associated with the DRB is also different, that is, the degree of DRB is also different. When S is 2, one DRB is composed of subcarriers used for transmitting an uplink data signal in 2 RBs, and the degree of the DRB is 2; when S is 3, one DRB is composed of subcarriers for transmitting an uplink data signal among 3 RBs, and the degree of the DRB is 3; when S is 4, one DRB is composed of subcarriers for transmitting an uplink data signal among 4 RBs, and the degree of the DRB is 4; when S is 6, one DRB is composed of subcarriers for transmitting an uplink data signal among 6 RBs, and the degree of the DRB is 6. It should be noted that the DRB and degree are only used for convenience, and do not limit the names.

For another example, when the step S is a set value but the value of S is different, the positions of L subcarriers for transmitting the uplink data signal in each of the M RBs indicated in the first message are also different. As shown in fig. 5. When S is 4, one DRB includes subcarriers from 4 RBs, i.e., the degree of DRB is 4. When s takes different values, L subcarriers may have 4 possible distribution positions in one RB, and thus, the L subcarriers indicated in the first message may be one of a first position, a second position, a third position, and a fourth position.

Another possible mapping manner is that subcarriers included in each RB are numbered in order from 0 to K-1, where the number of L subcarriers used for transmitting the uplink data signal in the RB is specifically S, S +1, S + S, S +1+ S, …, S + (L-1) S, S +1+ (L-1) S, S ═ 2K/L, where S is a step size, S ═ 2K/L, S may be greater than or equal to 2, S is a non-negative integer less than S-1, S may be an even number, and S +1+ (L-1) S is less than or equal to K-1.

For example, S may have a value of 6. As shown in fig. 6, one RB includes 12 subcarriers, and when S is 6, PUSCH may occupy 4 subcarriers in one RB, i.e., L is 4, and these 4 subcarriers are indicated by solid lines in fig. 6. In one RB, if the subcarriers occupied by PUSCH are divided into two groups, the interval between the first subcarrier in the first group and the first subcarrier in the second group is 6, i.e., step S, and the interval between the second subcarrier in the first group and the second subcarrier in the second group is also 6. Similarly, when the mapping mode of the subcarriers is adopted, one DRB occupied by the PUSCH may be composed of subcarriers used for transmitting uplink data signals in S/2 RBs, the degree of the DRB is S/2, and S is a step size. For example, when S is 6, one DRB is composed of subcarriers for transmitting an uplink data signal among 3 RBs.

It should be noted that, in the embodiment of the present application, each RB in the M RBs may adopt the same subcarrier mapping manner, that is, the position and the number of subcarriers occupied by the PUSCH in each RB in the M RBs may be the same.

Step S302, the terminal device receives the first message from the network device.

Step S303, the terminal device sends the uplink data signal to the network device on the N subcarriers.

In steps S302 and S303, the terminal device may determine N subcarriers occupied by the PUSCH from the M RBs, and transmit the uplink data signal on the N subcarriers.

The M RBs may be located in X RBs included in the first frequency domain resource, where X is a positive integer greater than or equal to M, and the first frequency domain resource may be an uplink transmission resource configured by the network device, and may be, for example, a bandwidth part (BWP). Correspondingly, the first message may further be configured to indicate one or more of a position of M RBs in the X RBs, a value of M, a value of L, an mxl/K value, and a value of S, so that the terminal device may determine the M RBs, and determine N subcarriers included in the M RBs for transmitting the uplink data signal according to a subcarrier mapping manner. M × L/K equals N/K, which refers to the number of DRBs in M RBs.

In one possible design, the N subcarriers may be considered as one or more DRBs scheduled, with the one or more DRBs scheduled included in the M RBs. Thus, the first message indicates that the positions of the M RBs in the X RBs may be: the first message includes information indicating a degree of the DRB, a start position of the DRB, and the number of the DRBs. The degree of the DRB may be one of preset value sets, for example, the preset value set may be {2, 4, 6 }.

The starting position of the DRB is the starting position of the scheduled DRB in X RBs. If the first frequency domain resource is a given BWP scheduled by the network device, and a set of all available degrees n in the BWP is referred to as a discrete bandwidth part (DBWP-n), then X RBs may be occupied RBs in the DBWP-n. The starting position of the DRB may be the number of the DRB with the smallest number among the scheduled DRBs, or the number of the RB with the smallest number included in the DRB with the smallest number, so that the terminal device can determine the starting position of the scheduled DRB.

The number of DRBs is the number of scheduled DRBs. When the preset value set is {2, 4, 6}, the number of DRBs in DBWP-2 is N2, the number of DRBs in DBWP-4 is N4, and the number of DRBs in DBWP-6 is N6. Typically, N2> N4> N6. When the number N of the scheduled DRBs is N6, the terminal device may send an uplink data signal using a DRB with a degree of 6; when the number N6< N < ═ N4 of the scheduled DRBs, the terminal device may transmit an uplink data signal using DRBs with a degree of 4; when the number N4< N < ═ N2 of the scheduled DRBs, the terminal device may transmit an uplink data signal using DRBs with a degree of 2; when the number N > N2 of scheduled DRBs, the terminal device may transmit an uplink data signal using a PRB. Therefore, the terminal equipment can determine the frequency domain position of the scheduled DRB according to the position of the DRB carried in the first information and the number of the DRB.

Step S304, the network device receives the uplink data signal sent by the terminal device on the N subcarriers.

In the embodiment of the application, the first frequency domain resource comprises Z continuous RBs, the number of the Z RBs is from 0 to Z-1, and Z is a positive integer greater than or equal to X. The positions or numbers of the X RBs in the first frequency domain resource may be scheduled by the network device, or may be determined by the terminal device through a preset rule.

In one possible design, the terminal device may receive a second message from the network device indicating the position or number of the X RBs in the first frequency domain resource and the value of X. Wherein X L/K is an integer representing the number of DRBs included in X RBs. For example, the terminal device may receive the second message from the network device before receiving the first message, and if the first frequency-domain resource is a given BWP scheduled by the network device, and a set of all available degrees n in the BWP is referred to as a discrete bandwidth part (DBWP-n), then X RBs may be RBs occupied by the DBWP-n. The second message may specifically indicate a location of a starting RB in the DBWP-n and a number of RBs included in the DBWP-n. In the embodiment of the application, the network device can configure a plurality of DBWPs with different degrees for the terminal device at the same time. As shown in fig. 6, when the degree of DBWP is different, the position and bandwidth of DBWP are also different.

In another possible design, the X RBs may be X RBs numbered 0 through X-1 in the first frequency domain resource; or, the number of the RBs from Z-X to Z-1 in the first frequency domain resource can be X; alternatively, X RBs numbered floor (a/2) to B × Z + floor (a/2) -1 in the first frequency domain resource may be provided, where X ═ floor (Z × L/K) × K/L, B ═ floor (Z × L/K), and a ═ Z-B × L/K.

It should be understood that, in this embodiment, the first message and the second message may be Uplink Control Information (UCI) carried on a Physical Uplink Control Channel (PUCCH), or may also be signaling or a message sent by a network device in a physical layer control signaling, Medium Access Control (MAC) layer signaling, or Radio Resource Control (RRC) manner, and specifically is not limited.

Therefore, by adopting the technical scheme provided by the embodiment of the application, the N subcarriers for transmitting the uplink data signal can be distributed in the M RBs, and the PUSCH can occupy part of the subcarriers in one RB to transmit the uplink data signal, so that the frequency domain range of a channel experienced by the PUSCH can be widened, the diversity gain brought by the frequency domain selectivity of the channel can be sufficiently obtained, and the transmission performance of the PUSCH can be improved.

The method provided by the embodiment of the application can also be expanded to be used for downlink communication. Please refer to fig. 8, which is a flowchart illustrating another communication method according to an embodiment of the present application, where the method includes steps S801 to S804 as follows:

step S801, a network device sends a first message to a terminal device, wherein the first message is used for indicating the terminal device to receive downlink data signals from the network device on N subcarriers;

in this embodiment of the present application, a downlink data signal is carried on a downlink data channel, and the downlink data signal may be a Physical Downlink Shared Channel (PDSCH), or may be another downlink data channel. Hereinafter, the downlink data channel will be described as the PDSCH.

The N subcarriers are subcarriers occupied by the PDSCH, that is, subcarriers used for transmitting downlink data signals. It should be noted that the N subcarriers are distributed in M Resource Blocks (RBs), and only a part of the subcarriers in each of the M RBs is occupied, where M is a positive integer greater than or equal to 2. That is, the number of subcarriers used to transmit the downlink data signal in each of the M RBs is L, L being smaller than K, K being the number of subcarriers included in one RB, and K may be 12, for example.

It is understood that each of the M RBs includes K consecutive subcarriers, but only L of the subcarriers are used for transmitting downlink data signals. In view of this, in the embodiment of the present application, the first message may also be used to indicate L subcarriers used for transmitting the downlink data signal in each RB of the M RBs, and provide a mapping manner from the PDSCH to the L subcarriers.

One possible mapping method is that the subcarriers included in each RB are numbered in the order from 0 to K-1, where the number of L subcarriers used for transmitting the downlink data signal in the RB is specifically S, S + S, …, S + (L-1) × S in the RB. Here, S is the step size, S ═ K/L, S may be 2 or more, S is a non-negative integer less than S, and S + (L-1) × S is K-1 or less.

Another possible mapping manner is that subcarriers included in each RB are numbered in order from 0 to K-1, where the number of L subcarriers used for transmitting downlink data signals in the RB is specifically S, S +1, S + S, S +1+ S, …, S + (L-1) S, S +1+ (L-1) S, and S ═ 2K/L, where S is a step size, S ═ 2 × K/L, S may be greater than or equal to 2, S is a non-negative integer less than S-1, S may be an even number, and S +1+ (L-1) × S is less than or equal to K-1.

It should be understood that, in the embodiment of the present application, the mapping manner of PDSCH to subcarriers (i.e., the position or number of the subcarrier occupied by PDSCH in one RB) may be implemented with reference to the mapping manner of PUSCH to subcarriers shown in fig. 4 to fig. 7, except that PUSCH is replaced by PDSCH, and therefore, the description is not repeated herein.

Step S802, the network device sends a downlink data signal to the terminal device.

In this embodiment, the network device may send the first message first and then send the downlink data signal, or may send the first message and the downlink data information simultaneously, which is not limited in this application. That is, the above step S802 may be executed after step S801 or may be executed simultaneously with step S801.

Step S803, the terminal device receives the first message from the network device.

Step S804, the terminal device receives the downlink data signal from the network device on the N subcarriers.

In steps S803 and S804, the terminal device may determine N subcarriers occupied by the PDSCH from the M RBs, and receive a downlink data signal on the N subcarriers.

Similarly, M RBs may be located in X RBs included in the first frequency-domain resource, where X is a positive integer greater than or equal to M, and the first frequency-domain resource may be a downlink transmission resource configured by the network device, and may be, for example, a bandwidth portion BWP. Correspondingly, the first message may further be configured to indicate one or more of a position of M RBs in the X RBs, a value of M, a value of L, an mxl/K value, and a value of S, so that the terminal device may determine the M RBs, and determine N subcarriers included in the M RBs for receiving the downlink data signal according to a subcarrier mapping manner. M × L/K equals N/K, which refers to the number of DRBs in M RBs.

In one possible design, the N subcarriers may be considered as one or more DRBs scheduled, with the one or more DRBs scheduled included in the M RBs. Thus, the first message indicates that the positions of the M RBs in the X RBs may be: the first message includes information indicating a degree of the DRB, a start position of the DRB, and the number of the DRBs. The information of the degree of the DRB, the starting position of the DRB, the number of DRBs, and the like may refer to the previous embodiment of the method, and will not be described herein again.

In this embodiment, the terminal device may also receive, from the network device, a second message, where the second message is used to indicate the positions or numbers of the X RBs in the first frequency-domain resource and the value of X. Wherein X L/K is an integer representing the number of DRBs included in X RBs. For example, the terminal device may receive the second message from the network device before receiving the first message, and if the first frequency-domain resource is a given BWP scheduled by the network device, and all available degree n sets in the BWP are referred to as discrete bandwidth portions DBWP-n, then X RBs may be RBs occupied by the DBWP-n. The second message may specifically indicate a location of a starting RB in the DBWP-n and a number of RBs included in the DBWP-n. In the embodiment of the application, the network device can simultaneously configure a plurality of DBWPs with different degrees.

Alternatively, X RBs may also be determined by a preset rule, for example, X RBs may be X RBs numbered from 0 to X-1 in the first frequency-domain resource, or may also be X RBs numbered from Z-X to Z-1 in the first frequency-domain resource, or may also be X RBs numbered from floor (a/2) to B × Z + floor (a/2) -1 in the first frequency-domain resource, where X is floor (Z × L/K) × K/L, B is floor (Z × L/K), and a is Z-B × L/K.

It should be understood that the first message and the second message mentioned in this embodiment may be Downlink Control Information (DCI) carried on a Physical Downlink Control Channel (PDCCH), or may also be signaling or a message sent by a network device through physical layer control signaling, Medium Access Control (MAC) layer signaling, or Radio Resource Control (RRC), and the like, and is not limited in particular.

Referring to fig. 9, a schematic structural diagram of a communication device according to an embodiment of the present application is provided, where the communication device 900 includes: a transceiver module 910 and a processing module 920. The communication device can be used for realizing the functions related to the terminal equipment in any of the above method embodiments. For example, the communication device may be a terminal device, such as a handheld terminal device or a vehicle-mounted terminal device; the communication device may also be a chip included in a terminal apparatus, or a device including a terminal apparatus, such as various types of vehicles and the like.

When the communication apparatus is used as a terminal device to execute the method embodiment shown in fig. 3, the processing module 920 is configured to perform an operation of transmitting an uplink data signal to a network device on N subcarriers through the transceiver module 910, and the transceiver module 910 is configured to perform an operation of receiving a first message from the network device.

When the communication apparatus is used as a terminal device to execute the method embodiment shown in fig. 8, the processing module 920 is configured to perform an operation of receiving a first message through the transceiver module 910 and determining N subcarriers according to the first message, and the transceiver module 910 is configured to perform an operation of receiving a downlink data signal from a network device on the N subcarriers.

The processing module 920 involved in the communication apparatus may be implemented by a processor or a processor-related circuit component, and the transceiver module 910 may be implemented by a transceiver or a transceiver-related circuit component. The operations and/or functions of the modules in the communication apparatus are respectively for implementing the corresponding flows of the methods shown in fig. 3 and fig. 8, and are not described herein again for brevity.

Please refer to fig. 10, which is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device may specifically be a terminal device. For ease of understanding and illustration, in fig. 10, the terminal device is exemplified by a mobile phone. As shown in fig. 10, the terminal device includes a processor and may further include a memory, and of course, may also include a radio frequency circuit, an antenna, an input/output device, and the like. The processor is mainly used for processing communication protocols and communication data, controlling the terminal equipment, executing software programs, processing data of the software programs and the like. The memory is used primarily for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminal devices may not have input/output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signals and sends the radio frequency signals to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 10. In an actual end device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.

In the embodiment of the present application, the antenna and the radio frequency circuit having the transceiving function may be regarded as a transceiving unit of the terminal device, and the processor having the processing function may be regarded as a processing unit of the terminal device. As shown in fig. 10, the terminal device includes a transceiving unit 1010 and a processing unit 1020. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. A processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Optionally, a device for implementing the receiving function in the transceiving unit 1010 may be regarded as a receiving unit, and a device for implementing the transmitting function in the transceiving unit 1010 may be regarded as a transmitting unit, that is, the transceiving unit 1010 includes a receiving unit and a transmitting unit. A transceiver unit may also sometimes be referred to as a transceiver, transceiving circuitry, or the like. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc. It should be understood that the transceiving unit 1010 is configured to perform the transmitting operation and the receiving operation on the terminal device side in the above method embodiments, and the processing unit 1020 is configured to perform other operations besides the transceiving operation on the terminal device in the above method embodiments.

Referring to fig. 11, a schematic structural diagram of another communication device provided in the embodiment of the present application is shown, where the communication device 1100 includes: a transceiver module 1110 and a processing module 1120. The communication device can be used for realizing the functions related to the network equipment in any one of the method embodiments. For example, the communication means may be a network device or a chip included in the network device.

When the communication apparatus is used as a network device to execute the method embodiment shown in fig. 3, the transceiver module 1110 is configured to perform operations of transmitting a first message to a terminal device and receiving an uplink data signal transmitted by the terminal device on N subcarriers; a processing module 1120, configured to perform an operation of determining X RBs and sending a second message to the terminal device through the transceiver module 1110.

When the communication apparatus is used as a network device to execute the method embodiment shown in fig. 8, the transceiver module 1110 is configured to perform operations of transmitting a first message to a terminal device and transmitting a downlink data signal to the terminal device on N subcarriers; a processing module 1120, configured to perform an operation of determining X RBs and sending a second message to the terminal device through the transceiver module 1110.

It is to be understood that the processing module 1120 involved in the communication apparatus may be implemented by a processor or processor-related circuit components, and the transceiver module 1110 may be implemented by a transceiver or transceiver-related circuit components. The operations and/or functions of the modules in the communication apparatus are respectively for implementing the corresponding flows of the methods shown in fig. 3 and fig. 8, and are not described herein again for brevity.

Please refer to fig. 12, which is a schematic structural diagram of another communication device provided in the embodiment of the present application. The communication device may be embodied as a network device, such as a base station, for implementing the functions related to the network device in any of the above method embodiments.

The network device includes: one or more radio frequency units, such as a Remote Radio Unit (RRU) 1201 and one or more baseband units (BBUs) (which may also be referred to as digital units, DUs) 1202. The RRU 1201 may be referred to as a transceiver unit, transceiver, transceiving circuitry, or transceiver, etc., which may include at least one antenna 12011 and a radio frequency unit 12012. The RRU 1201 is mainly used for receiving and transmitting radio frequency signals and converting the radio frequency signals and baseband signals. The BBU 1202 is mainly used for performing baseband processing, controlling a base station, and the like. The RRU 1201 and the BBU 1202 may be physically disposed together or may be physically disposed separately, that is, distributed base stations.

The BBU 1202 is a control center of a base station, and may also be referred to as a processing unit, and is mainly used for performing baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and the like. For example, the BBU (processing unit) 1202 may be configured to control the base station to perform the operation procedure related to the network device in the above-described method embodiment.

In an example, the BBU 1202 may be formed by one or more boards, and the boards may jointly support a radio access network (e.g., an LTE network) with a single access indication, or may respectively support radio access networks (e.g., LTE networks, 5G networks, or other networks) with different access schemes. The BBU 1202 may also include a memory 12021 and a processor 12022, the memory 12021 being used to store necessary instructions and data. The processor 12022 is configured to control the base station to perform necessary actions, for example, to control the base station to perform the transmitting operation in the above method embodiment. The memory 12021 and processor 12022 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits.

An embodiment of the present application further provides a chip system, including: a processor coupled to a memory for storing a program or instructions that, when executed by the processor, cause the system-on-chip to implement the method of any of the above method embodiments.

The system-on-chip may be, for example, a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a digital signal processing circuit (DSP), a Microcontroller (MCU), a Programmable Logic Device (PLD), or other integrated chips.

It will be appreciated that the steps of the above described method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor.

The embodiment of the present application further provides a computer-readable storage medium, where computer-readable instructions are stored in the computer-readable storage medium, and when the computer-readable instructions are read and executed by a computer, the computer is enabled to execute the method in any of the above method embodiments.

The embodiments of the present application further provide a computer program product, which when read and executed by a computer, causes the computer to execute the method in any of the above method embodiments.

The embodiment of the application also provides a communication system, which comprises network equipment and at least one terminal equipment.

It should be understood that the processor mentioned in the embodiments of the present application may be a Central Processing Unit (CPU), and may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also be appreciated that the memory referred to in the embodiments of the application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

It should be noted that when the processor is a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, the memory (memory module) is integrated in the processor.

It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of the processes should be determined by their functions and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. 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 application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: 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 above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, the method comprising:

the method comprises the steps that terminal equipment receives a first message from network equipment, wherein the first message is used for indicating the terminal equipment to send an uplink data signal to the network equipment on N subcarriers;

and the terminal equipment sends an uplink data signal to the network equipment on the N subcarriers, wherein the N subcarriers are distributed in M Resource Blocks (RB), the number of the subcarriers used for sending the uplink data signal in each RB in the M RBs is L, M is greater than or equal to 2, L is smaller than K, K is the number of the subcarriers included in one RB, and N, M, L, K are positive integers.

2. The method of claim 1, wherein the first message is used to indicate L subcarriers used to transmit the uplink data signal in each of the M RBs.

3. The method of claim 1 or 2, wherein for each RB of the M RBs, the number of the respective subcarriers in the RB is from 0 to K "1;

the serial numbers of the L subcarriers in the RB are S, S + S, …, S + (L-1) × S, S is K/L, and S is a non-negative integer less than S; alternatively, the first and second electrodes may be,

the number of the L subcarriers in the RB is S, S +1, S + S, S +1+ S …, S + (L-1) S, S +1+ (L-1) S, S is 2K/L, and S is a non-negative integer less than S-1.

4. The method according to any of claims 1 to 3, wherein the M RBs are located in X RBs comprised in a first frequency domain resource, X being a positive integer;

the first message is further configured to indicate one or more of the following:

a position of the M RBs in the X RBs, a value of the M, a value of the L, a value of M L/K, a value of the S.

5. The method of claim 4, wherein the first frequency domain resource comprises consecutive Z RBs, Z being a positive integer greater than or equal to X;

the method further comprises the following steps:

the terminal device receiving a second message from the network device, the second message indicating the positions or numbers of the X RBs in the first frequency domain resource and the value of X, where X × L/K is a positive integer;

and the terminal equipment determines the X RBs according to the second message.

6. The method of claim 4, wherein the first frequency-domain resource comprises consecutive Z RBs, wherein the number of the Z RBs is from 0 to Z-1, and wherein Z is a positive integer greater than or equal to X;

the X RBs are X RBs numbered 0 to X-1 in the first frequency domain resource; alternatively, the first and second electrodes may be,

the X RBs are X RBs numbered from Z-X to Z-1 in the first frequency domain resource; alternatively, the first and second electrodes may be,

the X RBs are X RBs of the first frequency-domain resource, numbered floor (a/2) to B × Z + floor (a/2) -1, where X ═ floor (Z × L/K) × K/L, B ═ floor (Z × L/K), and a ═ Z-B × L/K.

7. A method of communication, the method comprising:

the method comprises the steps that network equipment sends a first message to terminal equipment, wherein the first message is used for indicating the terminal equipment to send an uplink data signal to the network equipment on N subcarriers;

the network device receives uplink data signals sent by the terminal device on the N subcarriers, wherein the N subcarriers are distributed in M resource blocks RB, the number of subcarriers used for sending the uplink data signals in each RB of the M RBs is L, M is greater than or equal to 2, L is smaller than K, K is the number of subcarriers included in one RB, and N, M, L, K are positive integers.

8. The method of claim 7, wherein the first message is used to indicate L subcarriers used to transmit the uplink data signal in each of the M RBs.

9. The method of claim 7 or 8, wherein for each RB of the M RBs, the number of the subcarriers in the RB is from 0 to K "1;

the number of the L subcarriers in the RB is S, S + S, …, S + (L-1) S, S is K/L, and S is a non-negative integer less than S; alternatively, the first and second electrodes may be,

and the number of the L subcarriers in the RB is S, S +1, S + S, S +1+ S …, S + (L-1) S, S +1+ (L-1) S, S is 2K/L, and S is a non-negative integer less than S-1.

10. The method according to any of claims 7 to 9, wherein the M RBs are located in X RBs comprised in a first frequency domain resource, X being a positive integer;

11. The method of claim 10, wherein the first frequency-domain resource comprises consecutive Z RBs, Z being a positive integer greater than or equal to X;

the method further comprises the following steps:

and the network equipment sends a second message to the terminal equipment, wherein the second message is used for indicating the positions or numbers of the X RBs in the first frequency domain resource and the value of the X, and X is multiplied by L/K and is a positive integer.

12. The method of claim 10, wherein the first frequency-domain resource comprises Z consecutive RBs, wherein the Z RBs are numbered from 0 to Z-1, and wherein Z is a positive integer greater than or equal to X;

13. A communications apparatus, the apparatus comprising:

a transceiver module, configured to receive a first message from a network device, where the first message is used to instruct the communication apparatus to transmit an uplink data signal to the network device on N subcarriers;

a processing module, configured to send an uplink data signal to the network device on the N subcarriers through the transceiver module, where the N subcarriers are distributed in M resource blocks RB, the number of subcarriers used for sending the uplink data signal in each RB of the M RBs is L, M is greater than or equal to 2, L is smaller than K, K is the number of subcarriers included in one RB, and N, M, L, K are positive integers.

14. The apparatus of claim 13, wherein the first message indicates L subcarriers used for transmitting the uplink data signal in each of the M RBs.

15. The apparatus of claim 13 or 14, wherein for each RB of the M RBs, the number of the respective subcarriers in the RB is from 0 to K "1;

16. The apparatus according to any of claims 13 to 15, wherein the M RBs are located in X RBs comprised in a first frequency domain resource, X being a positive integer;

17. The apparatus of claim 16, wherein the first frequency domain resource comprises consecutive Z RBs, Z being a positive integer greater than or equal to X;

the transceiver module is further configured to:

receiving a second message from the network device, the second message indicating a position or a number of the X RBs in the first frequency domain resource and a value of the X, wherein X × L/K is a positive integer;

the processing module is further configured to determine the X RBs according to the second message.

18. The apparatus of claim 16, wherein the first frequency-domain resource comprises consecutive Z RBs, wherein the Z RBs are numbered from 0 to Z-1, and wherein Z is a positive integer greater than or equal to X;

19. A communications apparatus, the apparatus comprising:

a transceiver module, configured to send a first message to a terminal device, where the first message is used to instruct the terminal device to send an uplink data signal to the communication apparatus on N subcarriers;

the transceiver module is further configured to receive uplink data signals sent by the terminal device on the N subcarriers, where the N subcarriers are distributed in M resource blocks RB, the number of subcarriers used for sending the uplink data signals in each RB of the M RBs is L, M is greater than or equal to 2, L is smaller than K, K is the number of subcarriers included in one RB, and N, M, L, K are positive integers.

20. The apparatus of claim 19, wherein the first message is configured to indicate L subcarriers used for transmitting the uplink data signal in each of the M RBs.

21. The apparatus of claim 19 or 20, wherein for each RB of the M RBs, the number of the respective subcarriers in the RB is from 0 to K "1;

22. The apparatus according to any of claims 19 to 21, wherein the M RBs are located in X RBs comprised in a first frequency domain resource, X being a positive integer;

23. The apparatus of claim 22, wherein the first frequency domain resource comprises consecutive Z RBs, Z being a positive integer greater than or equal to X;

the apparatus further includes a processing module configured to determine the X RBs, and send a second message to the terminal device through the transceiver module, where the second message is used to indicate positions or numbers of the X RBs in the first frequency domain resource and a value of the X, where X × L/K is a positive integer.

24. The apparatus of claim 22, wherein the first frequency-domain resource comprises Z consecutive RBs, wherein the Z RBs are numbered from 0 to Z-1, and wherein Z is a positive integer greater than or equal to X;

25. An apparatus for communication, the apparatus comprising at least one processor coupled with at least one memory:

the at least one processor configured to execute computer programs or instructions stored in the at least one memory to cause the apparatus to perform the method of any of claims 1-6.

26. A computer-readable storage medium, having stored thereon a computer program or instructions, which, when read and executed by a computer, cause the computer to perform the method of any one of claims 1 to 6.

27. An apparatus for communication, the apparatus comprising at least one processor coupled with at least one memory:

the at least one processor configured to execute computer programs or instructions stored in the at least one memory to cause the apparatus to perform the method of any of claims 7 to 12.

28. A computer-readable storage medium, having stored thereon a computer program or instructions, which, when read and executed by a computer, cause the computer to perform the method of any one of claims 7 to 12.