CN108810972A - Communication method, terminal device and network device - Google Patents

Abstract

The application provides a communication method, network equipment and terminal equipment. The method comprises the following steps: the network equipment sends first indication information to the terminal equipment, wherein the first indication information is used for indicating the offset of the position of the nth frequency domain resource unit in m frequency domain resource units included in the receiving bandwidth of the terminal equipment in the system bandwidth relative to the position of the receiving bandwidth in the system bandwidth, the offset is determined according to the granularity of the frequency domain resource units of the terminal equipment, the granularity of the frequency domain resource units is the number of resource blocks included in the frequency domain resource units, and m is an integer greater than or equal to n; the network device sends second indication information to the terminal device, the second indication information is used for indicating the relative position of at least one frequency domain resource unit of a data channel scheduled to the terminal device and the nth frequency domain resource unit, and the at least one frequency domain resource unit is located in the receiving bandwidth. The method and the device can avoid or reduce the blockage among the frequency domain resource units scheduled for different terminal equipment.

Description

Communication method, terminal device and network device

technical field

The present application relates to the communication field, and more specifically, to a communication method, a terminal device and a network device.

Background technique

In the Long Term Evolution (LTE) system, the bitmap (bitmap) in the downlink control information (Downlink Control Information, DCI) of the physical downlink control channel (Physical Downlink Control Channel, PDCCH) can be used to indicate the The position of the resource block group (Resource Block Group, RBG) of the channel (Physical Downlink Shared Channel, PDSCH), where the RBG is a group of continuous resource blocks (Resource Block, RB) in the frequency domain. In LTE, since the system bandwidth is consistent with the user equipment (UserEquipment, UE) bandwidth, the size P of the RBGs scheduled by the base station to the UE (that is, the number of RBs included in each RBG) is related to the downlink system bandwidth related, as shown in Table 1.

Table 1

For system bandwidth For an RBG of size P, the number of RBGs is Then the corresponding bitmap contains a total of Bits, each 1 bit corresponds to 1 RBG, the highest bit can represent RBG 0, and the lowest bit can represent RBG For example, if a certain RBG is allocated to the PDSCH, the bit corresponding to the RBG in the bitmap is set to 1; otherwise, it is set to 0.

For example, when the system bandwidth includes 25 RBs, look up the table to get the RBG size P=2, then the bitmap contains Each bit represents two consecutive RBs in the frequency domain corresponding to one RBG. Assuming that the bitmap code allocated to the PDSCH resource is: 1001110100010, the PDSCH is allocated to RBG resources numbered 0, 3, 4, 5, 7, and 11.

In the fifth generation (The 5th ^Generation , 5G) new air interface (New Radio, NR) system, the bandwidth of the UE may be smaller than the system bandwidth If the existing technology is used to use the starting position of the bandwidth of the UE as the starting position of the RBG of the UE, it will cause congestion between RBGs scheduled for different UEs.

Contents of the invention

The present application provides a communication method, a terminal device and a network device, which can avoid or reduce blocking between frequency domain resource units scheduled for different terminal devices.

In a first aspect, a communication method is provided, and the method includes:

The network device sends first indication information to the terminal device, where the first indication information is used to indicate the position of the nth frequency domain resource unit among the m frequency domain resource units included in the receiving bandwidth of the terminal device in the system bandwidth relative to the offset of the position of the receiving bandwidth in the system bandwidth, the offset is determined according to the granularity of the frequency domain resource unit of the terminal device, and the granularity of the frequency domain resource unit is the The number of resource blocks included in the frequency domain resource unit, m is an integer greater than or equal to n;

The network device sends second indication information to the terminal device, where the second indication information is used to indicate at least one frequency domain resource unit scheduled to the data channel of the terminal device and the nth frequency domain resource unit The relative position of the at least one frequency domain resource unit is located within the receiving bandwidth.

In the embodiment of the present invention, by indicating to the terminal device the offset of the position of the designated frequency domain resource unit in the receiving bandwidth of the terminal channel in the system bandwidth relative to the position of the receiving bandwidth in the system bandwidth, and indicating to the terminal device The relative position between the at least one frequency domain resource unit scheduled for the data channel and the designated frequency domain resource unit can avoid or reduce blocking between frequency domain resource units scheduled for data channels of different terminal devices.

In some possible implementation manners, the set in which the frequency domain resource unit of the terminal device is located includes multiple frequency domain resource units of different granularities, and the frequency domain resource unit of the terminal device is the frequency domain resource unit of the multiple different granularities. One of the resource units, the position of the first frequency domain resource unit in the set in the system bandwidth and the position of the second frequency domain resource unit in the set in the system bandwidth are separated by integer multiples The second frequency domain resource unit, the first frequency domain resource unit is a frequency domain resource unit with the largest granularity in the set, and the second frequency domain resource unit is a frequency domain resource unit of any other granularity in the set resource unit.

By making the positions of frequency domain resource units of different granularities in the system bandwidth in the set where the frequency domain resource units of the terminal device are located meet the above conditions, the complexity of scheduling frequency domain resource units for multiple terminal devices by the network device can be reduced.

In some possible implementation manners, the number of resource blocks included in the first frequency-domain resource unit is a power of 2 times the number of resource blocks included in the second frequency-domain resource unit, and w is greater than or equal to Integer of 0.

In some possible implementation manners, the number of resource blocks included in the first frequency domain resource unit is the least common multiple of the number of resource blocks included in the second frequency domain resource unit.

In some possible implementation manners, the first indication information includes information bits, and P represents the number of resource blocks included in the frequency domain resource unit of the terminal device.

In some possible implementation manners, the second indication information includes a bitmap, each bit in the bitmap represents a frequency domain resource unit, and the relative position is based on at least one frequency domain resource of the data channel The position of the cell in the bitmap is determined.

In a second aspect, a communication method is provided, and the method includes:

The terminal device receives the first indication information sent by the network device, where the first indication information is used to indicate the number of nth frequency domain resource units in the system bandwidth of the m frequency domain resource units included in the receiving bandwidth of the terminal device. An offset of the position relative to the position of the receiving bandwidth in the system bandwidth, the offset is determined according to the granularity of the frequency domain resource unit of the terminal device, and the granularity of the frequency domain resource unit is The number of resource blocks included in the frequency domain resource unit, m is an integer greater than or equal to n;

The terminal device receives second indication information sent by the network device, where the second indication information is used to indicate at least one frequency domain resource unit of a data channel scheduled to the terminal device and the nth frequency domain resource the relative position of the unit, the at least one frequency domain resource unit is located within the receiving bandwidth;

determining, by the terminal device, at least one frequency domain resource unit scheduled to the data channel according to the offset and the relative position;

The terminal device communicates on the at least one frequency domain resource unit.

In the embodiment of the present invention, by indicating to the terminal device the offset of the position of the designated frequency domain resource unit in the receiving bandwidth of the terminal channel in the system bandwidth relative to the position of the receiving bandwidth in the system bandwidth, and indicating to the terminal device The relative position between the at least one frequency domain resource unit scheduled for the data channel and the designated frequency domain resource unit can avoid or reduce blocking between frequency domain resource units scheduled for data channels of different terminal devices.

In some possible implementation manners, the set in which the frequency domain resource unit of the terminal device is located includes multiple frequency domain resource units of different granularities, and the frequency domain resource unit of the terminal device is the frequency domain resource unit of the multiple different granularities. One of the resource units, the position of the first frequency domain resource unit in the set in the system bandwidth and the position of the second frequency domain resource unit in the set in the system bandwidth are separated by integer multiples The second frequency domain resource unit, the first frequency domain resource unit is a frequency domain resource unit with the largest granularity in the set, and the second frequency domain resource unit is a frequency domain resource unit of any other granularity in the set resource unit.

In some possible implementation manners, the number of resource blocks included in the first frequency-domain resource unit is a power of 2 times the number of resource blocks included in the second frequency-domain resource unit, and w is greater than or equal to Integer of 0.

In some possible implementation manners, the number of resource blocks included in the first frequency domain resource unit is the least common multiple of the number of resource blocks included in the second frequency domain resource unit.

In some possible implementation manners, the first indication information includes information bits, and P represents the number of resource blocks included in the frequency domain resource unit of the terminal device.

In some possible implementation manners, the second indication information includes a bitmap, each bit in the bitmap represents a frequency domain resource unit, and the relative position is based on at least one frequency domain resource of the data channel The position of the cell in the bitmap is determined.

In a third aspect, a network device is provided, and the network device is configured to implement the first aspect or the method described in any one of the foregoing possible implementation manners of the first aspect.

Specifically, the network device may include a unit configured to execute the method described in the first aspect or any possible implementation manner of the first aspect.

A fourth aspect provides a terminal device, configured to implement the second aspect or the method described in any of the above possible implementation manners of the second aspect.

Specifically, the terminal device may include a unit for performing the method described in the second aspect or any possible implementation manner of the second aspect.

In a fifth aspect, a network device is provided, including a processor, a transceiver, and a memory, the processor, the transceiver, and the memory communicate with each other through an internal connection path, the memory is used to store instructions, and the The processor is configured to execute instructions stored in the memory, and execution of the instructions stored in the memory causes the network device to execute the method described in the first aspect or any possible implementation manner of the first aspect.

In a sixth aspect, a terminal device is provided, including a processor, a transceiver, a memory, and a bus system, the processor, the transceiver, and the memory communicate with each other through an internal connection path, and the memory is used to store instructions , the processor is configured to execute instructions stored in the memory, and the execution of the instructions stored in the memory causes the terminal device to execute the method described in the second aspect or any possible implementation manner of the second aspect .

In the seventh aspect, there is provided a computer-readable storage medium, the computer-readable storage medium stores a program, and the program enables the network device to perform the method described in the above-mentioned first aspect or any possible implementation manner of the first aspect .

In an eighth aspect, there is provided a computer-readable storage medium, the computer-readable storage medium stores a program, and the program enables the terminal device to execute the method described in the above-mentioned second aspect or any possible implementation manner of the second aspect .

Description of drawings

Fig. 1 is a schematic diagram of resource blocking of RBG scheduling;

FIG. 2 is a schematic diagram of adjusted RBG scheduling according to an embodiment of the present invention;

Fig. 3 is a schematic flowchart of a communication method according to an embodiment of the present invention;

FIG. 4 is a positional relationship of frequency-domain resource units of different granularities in the same set according to an embodiment of the present invention;

FIG. 5 is a positional relationship of frequency-domain resource units of different granularities in the same set according to another embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a network device according to another embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

Fig. 9 is a schematic structural diagram of a terminal device according to another embodiment of the present invention.

Detailed ways

The technical solution in this application will be described below with reference to the accompanying drawings.

In different communication systems, the network devices in the embodiments of the present invention may be different devices. For example, the network device may be a base station controller (Base Station Controller, BSC), a radio network controller (RadioNetwork Controller, RNC), an evolved base station (evolved Node B, eNB or e-NodeB) in an LTE system, or a WCDMA system The base station (NodeB) or the base station gNB in the 5G system, etc.

It should be understood that, in the embodiment of the present invention, the terminal equipment can also be called user equipment (User Equipment, UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal), etc., and the terminal can access Radio Access Network (RAN) communicates with one or more core networks. For example, a terminal can be a mobile phone (or called a "cellular" phone), a computer with communication functions, etc. For example, a terminal device can also be a portable , pocket, handheld, computer built-in or vehicle-mounted mobile devices.

In the NR system, terminal devices with different bandwidth capabilities can flexibly access the same system bandwidth, so the granularity of the RBG (that is, the size of the RBG) scheduled by the base station to the terminal device may be determined by the downlink reception of the terminal device. Bandwidth decision. The base station needs to separately schedule downlink resources for terminal devices with different bandwidth capabilities, so from the perspective of network devices (such as base stations), the resource allocation of the entire downlink bandwidth will include multiple RBG sizes.

When the base station schedules RBGs for different terminal devices, because the terminal devices will flexibly access the system bandwidth, that is, the frequency domain position of the terminal device accessing the system bandwidth is not fixed, so there will be the following problems:

As shown in Figure 1, the RBG sizes of UE1 and UE2 are both 4. In the prior art, the base station uses the starting position of the receiving bandwidth of the terminal device as the starting position of the RBG sorting of the UE. When the base station first schedules the RBG for UE1 When scheduling RBG resources for UE2, assuming that the base station first schedules the 4th to 7th RBs and the 12th to 15th RBs in the system bandwidth for UE1, the following situation will occur: the remaining 1st to 15th RBs in the system bandwidth The 3 RBs do not meet the size of UE2's RBG, so they cannot be scheduled to UE2, and the 8th to 11th RBs in the system bandwidth span two RBGs of UE2, and cannot be scheduled to UE2. Therefore, based on the above analysis, the use of the existing technology will lead to congestion when scheduling resources for UE, so that many RB resources cannot be scheduled to UE2, resulting in waste of resources. Therefore, an embodiment of the present invention proposes a communication method, which can shift the position of at least one RBG of a data channel scheduled to a terminal device, so that resource waste can be reduced or avoided. As shown in Figure 2, the RBGs scheduled for the data channel of UE1 are moved to the right by one RB as a whole. In this case, when the base station schedules RBG resources for UE1 and then schedules RBG resources for UE2, resource waste is avoided. In FIG. 1 and FIG. 2 , the slanted square hatching indicates the RBG scheduled by the base station for UE1, and the dotted hatching indicates the RBG scheduled by the base station for UE2. For specific content of the embodiment of the present invention, reference may be made to the embodiment shown in FIG. 3 .

Fig. 3 is a schematic flowchart of a communication method according to an embodiment of the present invention. As shown in FIG. 3 , the communication method 300 includes the following content.

310. The network device sends first indication information to the terminal device, where the first indication information is used to indicate that the nth frequency domain resource unit among the m frequency domain resource units included in the receiving bandwidth of the terminal device is within the system bandwidth relative to the receiving bandwidth The offset of the location, the offset is determined according to the granularity of the frequency domain resource unit of the terminal device, the granularity of the frequency domain resource unit is the number of resource blocks included in the frequency domain resource unit, m is greater than or equal to n integer. Correspondingly, the terminal device receives the first indication information.

The frequency domain resource unit may be an RBG or other frequency domain resource units, which is not limited in this embodiment of the present invention.

Optionally, the RBs included in one frequency domain resource unit are continuous in the frequency domain.

The nth frequency domain resource unit in the receiving bandwidth may be a frequency domain resource unit of a data channel scheduled by the network device to the terminal device, and the terminal device can send or receive data on the frequency domain resource unit at this time; or, in the receiving bandwidth The n-th frequency-domain resource unit of may also not be the frequency-domain resource unit of the data channel scheduled by the network device to the terminal device. At this time, the terminal device can send or receive reference signals and/or control signals, etc. on the frequency-domain resource unit, or other terminal devices can communicate on the frequency domain resource unit.

The position of the receiving bandwidth in the system bandwidth can be the starting position of the receiving bandwidth in the system bandwidth, for example, the position of the starting RB in the receiving bandwidth in the system bandwidth; or, it can also be the ending position of the receiving bandwidth in the system bandwidth For example, the position of the last RB in the receiving bandwidth in the system bandwidth; or, the position of the RB in the middle of the receiving bandwidth in the system bandwidth, etc., which is not limited in this embodiment of the present invention.

320. The network device sends second indication information to the terminal device, where the second indication information is used to indicate the relative position of at least one frequency domain resource unit of a data channel scheduled to the terminal device and the nth frequency domain resource unit, at least one frequency domain resource unit Resource units are located within the receive bandwidth. Correspondingly, the terminal device receives the second indication information.

330. The terminal device determines at least one frequency domain resource unit scheduled by the network device to the data channel according to the offset indicated by the first indication information and the relative position indicated by the second indication information.

Specifically, the terminal device can determine the position of the nth frequency domain resource unit in the system bandwidth according to the offset, and then the terminal device can determine the relative position of the at least one frequency domain resource unit and the nth frequency domain resource unit, The position of the at least one frequency domain resource unit in the system bandwidth may be determined, that is, the at least one frequency domain resource unit may be determined.

340. The terminal device sends or receives data on the at least one frequency domain resource unit.

The first indication information may be carried in high-level signaling or DCI, and may also be carried in other signaling; the second indication information may be carried in high-level signaling or DCI, and may also be carried in other signaling. The embodiment does not limit this.

It should also be noted that the first indication information and the second indication information are sent at the same time, for example, they may be carried in different fields of the same high-layer signaling or DCI; or, the first indication information and the second indication information may also be sent separately, for example Carried in different high-layer signaling or DCI.

In the embodiment of the present invention, by indicating to the terminal device the offset of the position of the designated frequency domain resource unit in the receiving bandwidth of the terminal channel in the system bandwidth relative to the position of the receiving bandwidth in the system bandwidth, and indicating to the terminal device The relative position between the at least one frequency domain resource unit scheduled for the data channel and the designated frequency domain resource unit can avoid or reduce blocking between frequency domain resource units scheduled for data channels of different terminal devices.

Optionally, the network device may determine the granularity of the frequency domain resource unit according to the receiving bandwidth of the terminal device. The network device can obtain the receiving bandwidth of the terminal device. For example, the network device may receive the receiving bandwidth reported by the terminal device, and may also acquire the stored receiving bandwidth of the terminal device from the memory.

Optionally, the set in which the frequency domain resource unit of the terminal device is located includes multiple frequency domain resource units of different granularities, the frequency domain resource unit of the terminal device is one of the multiple frequency domain resource units of different granularities, and the first The position of the frequency domain resource unit in the system bandwidth and the position of the second frequency domain resource unit in the set in the system bandwidth are separated by an integer multiple of the second frequency domain resource unit, and the first frequency domain resource unit is the largest granularity in the set The second frequency domain resource unit is a frequency domain resource unit of any other granularity in the set.

By making the positions of frequency domain resource units of different granularities in the system bandwidth in the set where the frequency domain resource units of the terminal device are located meet the above conditions, the complexity of scheduling frequency domain resource units for multiple terminal devices by the network device can be reduced.

Optionally, the number of resource blocks included in the first frequency-domain resource unit is 2 times the power of w of the number of resource blocks included in the second frequency-domain resource unit, and w is an integer greater than or equal to 0. The set can be a={a ₁ ,a ₂ ,...a _n ...}, where a ₁ ,a ₂ ,...are frequency-domain resource units of different granularities, a _n =2 ^n-1 a ₁ , for example, the set could be {1,2,4,8…}, {3,6,12…} or {5,10,20…} etc. When a network device schedules frequency domain resource units for multiple terminal devices corresponding to frequency domain resource units of different granularities, the positions of frequency domain resource units of different granularities in the set in the system bandwidth satisfy the nesting shown in Figure 4 relation. In this way, the complexity of the network device scheduling frequency domain resource units for multiple terminal devices can be reduced.

Optionally, the number of resource blocks included in the first frequency domain resource unit is the least common multiple of the number of resource blocks included in the second frequency domain resource unit. The set can be d={d ₁ , d ₂ ,...d _n }, where d ₁ , d ₂ ... are frequency-domain resource units of different granularities, and d _n is the number of d ₁ , d ₂ ... least common multiple. When the network device schedules frequency domain resource units for multiple terminal devices corresponding to frequency domain resource units of different granularities, the positions of the frequency domain resource units of different granularities in the set in the system bandwidth satisfy the relationship shown in Figure 5, That is, the positions of frequency domain resource units of other granularities in the set except for the frequency domain resource unit of the largest granularity are all embedded in the frequency domain resource unit of the largest granularity. In this way, the complexity of the network device scheduling frequency domain resource units for multiple terminal devices can be reduced.

Optionally, the first indication information includes information bits, and P represents the number of resource blocks included in the frequency domain resource unit of the terminal device.

Optionally, the second indication information includes a bitmap, each bit in the bitmap represents a frequency domain resource unit, and the relative position is determined according to the position of at least one frequency domain resource unit of the data channel in the bitmap. Assuming that "1" is used in the bitmap to indicate the frequency domain resource unit scheduled for the data channel, and the frequency domain resource unit includes 2 RBs, then the bitmap code 1001110100010 indicates that the frequency domain resource scheduled for the data channel is in the receiving bandwidth of the terminal device Frequency-domain resource units numbered 0, 3, 4, 5, 7, and 11.

The communication method according to the embodiment of the present invention is described above, and the network device and the terminal device according to the embodiment of the present invention will be described below with reference to FIG. 6 to FIG. 9 .

Fig. 6 is a schematic structural diagram of a network device 600 according to an embodiment of the present invention. As shown in FIG. 6 , a network device 600 may include a processing unit 610 and a transceiver unit 620 .

The processing unit 610 is configured to generate first indication information, where the first indication information is used to indicate the position of the nth frequency domain resource unit among the m frequency domain resource units included in the receiving bandwidth of the terminal device in the system bandwidth relative to the offset of the position of the receiving bandwidth in the system bandwidth, the offset is determined according to the granularity of the frequency domain resource unit of the terminal device, and the granularity of the frequency domain resource unit is the The number of resource blocks included in the frequency domain resource unit, m is an integer greater than or equal to n;

The processing unit 620 is further configured to generate second indication information, where the second indication information is used to indicate the relative position between at least one frequency domain resource unit of the data channel scheduled to the terminal device and the nth frequency domain resource unit , the at least one frequency domain resource unit is located within the receiving bandwidth;

The transceiving unit 620 is configured to send the first indication information and the second indication information. The transceiving unit 620 may send the first indication information and the second indication information separately, or may send the first indication information and the second indication information.

In the embodiment of the present invention, by indicating to the terminal device the offset of the position of the designated frequency domain resource unit in the receiving bandwidth of the terminal channel in the system bandwidth relative to the position of the receiving bandwidth in the system bandwidth, and indicating to the terminal device The relative position between the at least one frequency domain resource unit scheduled for the data channel and the designated frequency domain resource unit can avoid or reduce blocking between frequency domain resource units scheduled for data channels of different terminal devices.

It should be understood that the network device 600 according to the embodiment of the present invention may correspond to the network device in the communication method according to the embodiment of the present invention, and the above-mentioned and other operations and/or functions of each unit in the network device 600 are respectively in order to realize the For the sake of brevity, the corresponding flow of the shown method will not be repeated here.

FIG. 7 is a schematic structural diagram of a network device 700 according to another embodiment of the present invention. As shown in FIG. 7 , the network device 700 includes a processor 710 , a transceiver 720 and a memory 730 , and the processor 710 , the transceiver 720 and the memory 730 communicate with each other through an internal connection path to transmit control signals and/or data signals. The memory 730 is used to store instructions, and the processor 710 is used to execute the instructions stored in the memory 730 . The transceiver 720 is used to receive signals or transmit signals under the control of the processor 710 .

Specifically, the transceiver 720 is used to implement the functions of the transceiver unit 620 in the network device 600 shown in FIG. 6 . The processor 70 is configured to realize the function of the processing unit 610 in the network device 600 shown in FIG. 6 , which is not repeated here for brevity.

It should be understood that the network device 700 according to the embodiment of the present invention may correspond to the network device in the communication method according to the embodiment of the present invention and the network device 600 according to the embodiment of the present invention, and the above and other aspects of each unit in the network device 700 The operations and/or functions are respectively for realizing the corresponding flow of the method shown in FIG. 3 , and for the sake of brevity, details are not repeated here.

Fig. 8 is a schematic structural diagram of a terminal device 800 according to an embodiment of the present invention. As shown in FIG. 8 , a terminal device 800 includes a transceiver unit 810 and a processing unit 820 .

The transceiver unit 810 is configured to receive the first indication information sent by the network device, the first indication information is used to indicate that the nth frequency domain resource unit among the m frequency domain resource units included in the reception bandwidth of the terminal device is in the system An offset of the position in the bandwidth relative to the position of the receiving bandwidth in the system bandwidth, the offset is determined according to the granularity of the frequency domain resource unit of the terminal device, and the frequency domain resource unit The granularity of is the number of resource blocks included in the frequency domain resource unit, and m is an integer greater than or equal to n;

The transceiving unit 810 is further configured to receive second indication information sent by the network device, where the second indication information is used to indicate that at least one frequency domain resource unit scheduled to the data channel of the terminal device is related to the first Relative positions of n frequency domain resource units, the at least one frequency domain resource unit is located within the receiving bandwidth;

A processing unit 820, configured to determine at least one frequency domain resource unit scheduled to the data channel according to the offset and the relative position;

The transceiving unit 810 is further configured to perform communication on the at least one frequency domain resource unit.

In the embodiment of the present invention, by indicating to the terminal device the offset of the position of the designated frequency domain resource unit in the receiving bandwidth of the terminal channel in the system bandwidth relative to the position of the receiving bandwidth in the system bandwidth, and indicating to the terminal device The relative position between the at least one frequency domain resource unit scheduled for the data channel and the designated frequency domain resource unit can avoid or reduce blocking between frequency domain resource units scheduled for data channels of different terminal devices.

It should be understood that the terminal device 800 according to the embodiment of the present invention may correspond to the terminal device in the beam resource configuration method according to the embodiment of the present invention, and the above-mentioned and other operations and/or functions of each unit in the terminal device 800 are respectively for The corresponding process for implementing the method shown in FIG. 3 is omitted here for the sake of brevity.

Fig. 9 is a schematic structural diagram of a terminal device 900 according to another embodiment of the present invention. As shown in FIG. 9, the terminal device 900 includes a processor 910, a transceiver 920, and a memory 930. The processor 910, the transceiver 920, and the memory 930 communicate with each other through an internal connection path, and transmit control signals and/or data signals. The memory 930 is used to store instructions, and the processor 910 is used to execute the instructions stored in the memory 930 . The transceiver 920 is used to receive signals or transmit signals under the control of the processor 910 .

Specifically, the transceiver 920 is used to implement the function of the receiving unit 810 in the terminal device 800 shown in FIG. 8 . The processor 910 is configured to implement the function of the processing unit 820 in the terminal device 800 shown in FIG. 8 , which is not repeated here for brevity.

It should be understood that the terminal device 900 according to the embodiment of the present invention may correspond to the terminal device in the communication method according to the embodiment of the present invention and the terminal device 800 according to the embodiment of the present invention, and the above and other aspects of each unit in the terminal device 900 The operations and/or functions are respectively for realizing the corresponding flow of the method shown in FIG. 3 , and for the sake of brevity, details are not repeated here.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of each embodiment of the present invention is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium In, several instructions are included to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other various media that can store program codes. .

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (24)

1. A communication method, characterized in that, comprising: The network device sends first indication information to the terminal device, where the first indication information is used to indicate the position of the nth frequency domain resource unit among the m frequency domain resource units included in the receiving bandwidth of the terminal device in the system bandwidth relative to the offset of the position of the receiving bandwidth in the system bandwidth, the offset is determined according to the granularity of the frequency domain resource unit of the terminal device, and the granularity of the frequency domain resource unit is the The number of resource blocks included in the frequency domain resource unit, m is an integer greater than or equal to n; The network device sends second indication information to the terminal device, where the second indication information is used to indicate at least one frequency domain resource unit scheduled to the data channel of the terminal device and the nth frequency domain resource unit The relative position of the at least one frequency domain resource unit is located within the receiving bandwidth. 2. The method according to claim 1, wherein the set in which the frequency domain resource unit of the terminal device is located includes a plurality of frequency domain resource units of different granularities, and the frequency domain resource unit of the terminal device is the One of multiple frequency domain resource units with different granularities, the position of the first frequency domain resource unit in the set in the system bandwidth is the same as the position of the second frequency domain resource unit in the set in the system bandwidth The second frequency domain resource unit is an integer multiple of the interval between positions, the first frequency domain resource unit is the frequency domain resource unit with the largest granularity in the set, and the second frequency domain resource unit is the frequency domain resource unit in the set Frequency-domain resource units of any other granularity. 3. The method according to claim 2, wherein the number of resource blocks included in the first frequency domain resource unit is the w power of 2 of the number of resource blocks included in the second frequency domain resource unit times, w is an integer greater than or equal to 0. 4. The method according to claim 2, wherein the number of resource blocks included in the first frequency domain resource unit is the least common multiple of the number of resource blocks included in the second frequency domain resource unit. 5. The method according to any one of claims 1 to 4, wherein the first indication information includes information bits, and P represents the number of resource blocks included in the frequency domain resource unit of the terminal device. 6. The method according to any one of claims 1 to 5, wherein the second indication information includes a bitmap, each bit in the bitmap represents a frequency domain resource unit, and the relative The position is determined according to the position of at least one frequency domain resource unit of the data channel in the bitmap. 7. A communication method, characterized in that, comprising: The terminal device receives the first indication information sent by the network device, where the first indication information is used to indicate the number of nth frequency domain resource units in the system bandwidth of the m frequency domain resource units included in the receiving bandwidth of the terminal device. An offset of the position relative to the position of the receiving bandwidth in the system bandwidth, the offset is determined according to the granularity of the frequency domain resource unit of the terminal device, and the granularity of the frequency domain resource unit is The number of resource blocks included in the frequency domain resource unit, m is an integer greater than or equal to n; The terminal device receives second indication information sent by the network device, where the second indication information is used to indicate at least one frequency domain resource unit of a data channel scheduled to the terminal device and the nth frequency domain resource the relative position of the unit, the at least one frequency domain resource unit is located within the receiving bandwidth; determining, by the terminal device, at least one frequency domain resource unit scheduled to the data channel according to the offset and the relative position; The terminal device communicates on the at least one frequency domain resource unit. 8. The method according to claim 7, wherein the set in which the frequency domain resource unit of the terminal device is located includes a plurality of frequency domain resource units of different granularities, and the frequency domain resource unit of the terminal device is the One of multiple frequency domain resource units with different granularities, the position of the first frequency domain resource unit in the set in the system bandwidth is the same as the position of the second frequency domain resource unit in the set in the system bandwidth The second frequency domain resource unit is separated by an integer multiple of positions, the first frequency domain resource unit is the frequency domain resource unit with the largest granularity in the set, and the second frequency domain resource unit is the frequency domain resource unit in the set Frequency-domain resource units of any other granularity. 9. The method according to claim 8, wherein the number of resource blocks included in the first frequency domain resource unit is the power of 2 of the number of resource blocks included in the second frequency domain resource unit times, w is an integer greater than or equal to 0. 10. The method according to claim 8, wherein the number of resource blocks included in the first frequency domain resource unit is the least common multiple of the number of resource blocks included in the second frequency domain resource unit. 11. The method according to any one of claims 7 to 10, wherein the first indication information includes information bits, and P represents the number of resource blocks included in the frequency domain resource unit of the terminal device. 12. The method according to any one of claims 7 to 11, wherein the second indication information includes a bitmap, each bit in the bitmap represents a frequency domain resource unit, and the relative The position is determined according to the position of at least one frequency domain resource unit of the data channel in the bitmap. 13. A network device, comprising: A transceiver unit, configured to send first indication information to the terminal device, where the first indication information is used to indicate that the nth frequency domain resource unit among the m frequency domain resource units included in the receiving bandwidth of the terminal device is within the system bandwidth The offset of the position in relative to the position of the receiving bandwidth in the system bandwidth, the offset is determined according to the granularity of the frequency domain resource unit of the terminal device, and the frequency domain resource unit of the The granularity is the number of resource blocks included in the frequency domain resource unit, and m is an integer greater than or equal to n; The transceiver unit is further configured to send second indication information to the terminal device, where the second indication information is used to indicate that at least one frequency domain resource unit scheduled to the data channel of the terminal device is related to the nth Relative positions of frequency-domain resource units, the at least one frequency-domain resource unit is located within the receiving bandwidth. 14. The network device according to claim 13, wherein the set in which the frequency domain resource unit of the terminal device is located includes a plurality of frequency domain resource units of different granularities, and the frequency domain resource unit of the terminal device is all One of the plurality of frequency domain resource units with different granularities, the position of the first frequency domain resource unit in the set in the system bandwidth is the same as the position of the second frequency domain resource unit in the set in the system bandwidth The positions of the intervals between the second frequency domain resource units are integer multiples, the first frequency domain resource unit is the frequency domain resource unit with the largest granularity in the set, and the second frequency domain resource unit is the set frequency-domain resource units at any other granularity. 15. The network device according to claim 14, wherein the number of resource blocks included in the first frequency domain resource unit is w times 2 of the number of resource blocks included in the second frequency domain resource unit Power times, w is an integer greater than or equal to 0. 16. The network device according to claim 14, wherein the number of resource blocks included in the first frequency domain resource unit is the least common multiple of the number of resource blocks included in the second frequency domain resource unit. 17. The network device according to any one of claims 13 to 16, wherein the first indication information includes information bits, and P represents the number of resource blocks included in the frequency domain resource unit of the terminal device. 18. The network device according to any one of claims 13 to 17, wherein the second indication information includes a bitmap, each bit in the bitmap represents a frequency domain resource unit, and the The relative position is determined according to the position of at least one frequency domain resource unit of the data channel in the bitmap. 19. A terminal device, characterized in that it comprises: The transceiver unit is configured to receive the first indication information sent by the network device, the first indication information is used to indicate that the nth frequency domain resource unit among the m frequency domain resource units included in the receiving bandwidth of the terminal device is in the system An offset of the position in the bandwidth relative to the position of the receiving bandwidth in the system bandwidth, the offset is determined according to the granularity of the frequency domain resource unit of the terminal device, and the frequency domain resource unit The granularity of is the number of resource blocks included in the frequency domain resource unit, and m is an integer greater than or equal to n; The transceiver unit is further configured to receive second indication information sent by the network device, where the second indication information is used to indicate that at least one frequency domain resource unit scheduled to the data channel of the terminal device is related to the nth relative positions of frequency domain resource units, the at least one frequency domain resource unit is located within the receiving bandwidth; a processing unit, configured to determine at least one frequency domain resource unit scheduled to the data channel according to the offset and the relative position; The transceiver unit is further configured to communicate on the at least one frequency domain resource unit. 20. The terminal device according to claim 19, wherein the set in which the frequency domain resource unit of the terminal device is located includes a plurality of frequency domain resource units of different granularities, and the frequency domain resource unit of the terminal device is all One of the plurality of frequency domain resource units with different granularities, the position of the first frequency domain resource unit in the set in the system bandwidth is the same as the position of the second frequency domain resource unit in the set in the system bandwidth The positions of the intervals between the second frequency domain resource units are integer multiples, the first frequency domain resource unit is the frequency domain resource unit with the largest granularity in the set, and the second frequency domain resource unit is the set frequency-domain resource units at any other granularity. 21. The terminal device according to claim 20, wherein the number of resource blocks included in the first frequency domain resource unit is 2 w times the number of resource blocks included in the second frequency domain resource unit Power times, w is an integer greater than or equal to 0. 22. The terminal device according to claim 20, wherein the number of resource blocks included in the first frequency domain resource unit is a least common multiple of the number of resource blocks included in the second frequency domain resource unit. 23. The terminal device according to any one of claims 19 to 22, wherein the first indication information includes information bits, and P represents the number of resource blocks included in the frequency domain resource unit of the terminal device. 24. The terminal device according to any one of claims 19 to 23, wherein the second indication information includes a bitmap, each bit in the bitmap represents a frequency domain resource unit, and the The relative position is determined according to the position of at least one frequency domain resource unit of the data channel in the bitmap.