WO2020164130A1

WO2020164130A1 - Communication method and communication device

Info

Publication number: WO2020164130A1
Application number: PCT/CN2019/075263
Authority: WO
Inventors: 余政; 毕文平
Original assignee: 华为技术有限公司
Priority date: 2019-02-15
Filing date: 2019-02-15
Publication date: 2020-08-20
Also published as: CN113383590A; CN113383590B

Abstract

Provided by the present application are a communication method and device, the method comprising: a first communication device receives control information, the control information indicating the number L of resource blocks allocated to the first communication device and the number N of repetitions; and the first communication device sends a data channel to a second communication device according to the number L of resource blocks and the number N of repetitions, wherein the number L of resource blocks pertains to a first resource block number set among multiple resource block number sets, each resource block number set among the multiple resource block number sets is associated with a number of repetitions set, the number N of repetition pertains to a first number of repetitions set, and the first number of repetitions set is the number of repetitions set that is associated with the first resource block number set. The present application is beneficial to improving the rationality of the combination method between the number of resource blocks and the times of repetitions.

Description

Communication method and communication equipment

Technical field

This application relates to the field of communication, and more specifically, to transmission communication methods and devices.

Background technique

In a communication system, control information is generally used to allocate resource blocks (resource blocks, RBs) used for transmitting data channels for communication devices (for example, terminal devices). In a scenario where a terminal device communicates with a network device, the control information may be downlink control information (downlink control information, DCI). After receiving the control information, the communication device can determine parameters such as the RB occupied by the sending data channel and the number of repetitions of the sending data channel according to the control information. Among them, the RB occupied by the transmission data channel can be determined by the starting RB and the RB length, and the number of repetitions can be selected from 4 types of repetition times specified in the communication protocol.

At present, when determining the above three parameters (that is, the number of resource blocks, the starting resource block, and the number of repetitions) for a communication device, regardless of the channel quality, the number of each resource block needs to be equal to each of the four repetition times. A combination of the number of repetitions to obtain all combinations, so that other communication devices can determine one combination for the communication device from all the combinations described above to guide the communication device to transmit data. However, the above method of obtaining all combinations is not reasonable.

Summary of the invention

The present application provides a communication method and communication device to improve the rationality of the combination between the number of repetitions and the number of resource blocks.

In a first aspect, a communication method is provided, including: a first communication device receives control information, the control information indicating the number of resource blocks allocated to the first communication device L and the number of repetitions N; the first communication The device sends a data channel to the second communication device according to the number of resource blocks L and the number of repetitions N, where the number of resource blocks L belongs to the number of first resource blocks in the number of resource block sets A set of the number of resource blocks in the plurality of resource block number sets is associated with a set of repetition times, the number of repetitions N belongs to a first set of repetition times, and the first set of repetition times is the first The set of repetition times associated with the set of resource block counts.

In the embodiment of the present application, a set of repetition times is associated with each resource block number set. Thus, the number of repetitions allocated to the first communication device is determined from the first set of repetition times associated with the number of resource blocks L of. That is to say, the number of resource blocks L only needs to be combined with the number of repetitions contained in the first set of repetitions, which avoids the same set of repetitions associated with the number of all resource blocks in the prior art, which is beneficial to increase the number of resource blocks. The rationality of the combination between the number and the number of repetitions.

In a possible implementation manner, the method further includes: the first communication device determines, according to the control information, a starting resource block allocated for the first communication device; and the first communication device according to the The number of resource blocks L and the number of repetitions N, sending a data channel to the second communication device includes: the first communication device according to the number of resource blocks L, the number of repetitions N, and the starting resource block , To send a data channel to the second communication device.

Optionally, different sets of number of resource blocks in the plurality of sets of number of resource blocks are associated with different sets of repetition times.

Optionally, the number of repetitions N is the number of repetitions for transmitting the control information and/or the number of repetitions for transmitting the data channel.

In a possible implementation manner, the multiple resource block number sets further include a second resource block number set, and the second resource block number set is associated with a second set of repetition times; the second resource The smallest resource block number in the block number set is greater than the largest resource block number in the first resource block number set, and the number of repetition times in the second set of repetition times is smaller than the first resource block number. The number of repetition times in the set of repetition times; or, the smallest number of resource blocks in the first resource block number set is greater than the maximum number of resource blocks in the second resource block number set, and The number of repetition times in the first set of repetition times is less than the number of repetition times in the second set of repetition times; or, the smallest number of resource blocks in the second set of resource block numbers is greater than all The largest number of resource blocks in the first set of resource block numbers, and the number of repetitions in the second set of repetitions is not more than the number of repetitions in the first set of repetitions; or , The smallest number of resource blocks in the first set of resource block numbers is greater than the largest number of resource blocks in the second set of resource blocks, and the number of repetitions in the first set of repetitions The number is not more than the number of repetition times in the second set of repetition times.

In the embodiment of the present application, based on the channel environment that is applicable when the number of allocated resource blocks is small, the applicable channel environment is more complicated, and the channel environment applicable to the more allocated resource blocks is relatively simple, which is a small number of resource blocks (for example, , The number of repetition times associated with the first resource block number set (for example, the number of repetition times in the first set of repetition times) is large, so as to adapt to a more complicated situation. The number of repetition times (for example, the number of repetitions in the second set of repetition times) associated with a larger number of resource blocks (for example, the second set of resource block numbers) is small, so as to adapt to the simpler Happening.

In a possible implementation manner, the plurality of resource block number sets include a third resource block number set {c, d}, and the first resource block number set is {a}, and the first resource block number set is {a}. The second set of resource block numbers is {b}, the first set of repetition times includes 4 repetition times, the second set of repetition times includes 2 repetition times, and the third resource block number set is associated with The set of three repetitions includes 1 repetition; or, the first resource block number set is {a, b}, the second resource block number set is {c, d}, and the first resource block The set of repetition times associated with the number set includes three repetition times, and the second set of repetition times includes two repetition times; or, the first resource block number set is {a}, and the second resource block The number set is {b, c, d}, the first set of repetition times includes 4 repetition times, and the second set of repetition times includes 2 repetition times; or, the first resource block number set is {e}, the second set of resource block numbers is {f}, the first set of repetitions includes 8 repetitions, and the second set of repetitions includes 4 repetitions, where, represents different resources The a, b, c, and d of the number of blocks are positive integers, and a<b<c<d, which represents e of the number of different resource blocks, f is a positive integer, and e<f. Optionally, e=1 and f=2.

In a possible implementation manner, the first resource block number set is {a}, the second resource block number set is {b}, and the third resource block number set is {c, d}; each resource block number in the first resource block number set is associated with 2 candidate starting resource blocks, and each resource block number in the second resource block number set is associated with 3 candidates Starting resource block, each resource block number in the third resource block number set is associated with 1 candidate starting resource block; or, the number of each resource block in the first resource block number set Three candidate start resource blocks are associated, each resource block number in the second resource block number set is associated with 1 candidate start resource block, and each resource block in the third resource block number set The number is associated with 1 candidate starting resource block.

In a possible implementation manner, the first resource block number set is {a, b}, the second resource block number set is {c, d}; the first resource block number set Each resource block number in is associated with two candidate start resource blocks, and each resource block number in the second resource block number set is associated with one candidate start resource block.

In a possible implementation, the first resource block number set is {a}, the second resource block number set is {b, c, d}; the first resource block number set The number of resource blocks in a is associated with two candidate start resource blocks, the number of resource blocks in the second resource block number set b is associated with two candidate start resource blocks, and the second resource block number set The number c of resource blocks in is associated with one candidate start resource block, and the number of resource blocks d in the second resource block number set is associated with one candidate start resource block.

In a possible implementation manner, the first resource block number set is {a}, the second resource block number set is {b}; the resource blocks in the first resource block number set The number a is associated with three candidate start resource blocks, and the number b of resource blocks in the first resource block number set is associated with two candidate start resource blocks.

Optionally, the first device is coverage level 2, or coverage level 3, or coverage enhancement level B terminal equipment.

In a possible implementation manner, the first set of the number of resource blocks is {a, b, c, d}, where a, b, c, and d representing the number of different resource blocks are positive integers, And a<b<c<d; the number of resource blocks a is associated with three candidate start resource blocks; and/or the number of resource blocks b is associated with two candidate start resource blocks; and/or, The number c of resource blocks is associated with two candidate start resource blocks; and/or the number d of resource blocks is associated with one candidate start resource block.

The aforementioned number a of resource blocks is associated with three candidate start resource blocks. Alternatively, when the aforementioned number of resource blocks L is a, three candidate start resource blocks are associated. The number b of resource blocks is associated with two candidate start resource blocks. Alternatively, when the number L of the above resource blocks is b, two candidate start resource blocks are associated. The number c of resource blocks is associated with two candidate start resource blocks. Alternatively, when the number of resource blocks L is c, two candidate start resource blocks are associated. The number d of resource blocks is associated with one candidate start resource block. Alternatively, when the number of resource blocks L is d, one candidate start resource block is associated.

In a possible implementation manner, the first set of the number of resource blocks is {a, b, c, d}, where a, b, c, and d representing the number of different resource blocks are positive integers, And a<b<c<d; the number of resource blocks a is associated with 3 candidate start resource blocks; and/or the number of resource blocks b is associated with 3 candidate start resource blocks; and/or, The number c of resource blocks is associated with one candidate start resource block; and/or, the number d of resource blocks is associated with one candidate start resource block.

The aforementioned number a of resource blocks is associated with three candidate start resource blocks. Alternatively, when the aforementioned number of resource blocks L is a, three candidate start resource blocks are associated. The number b of resource blocks is associated with three candidate start resource blocks. Alternatively, when the number L of the above resource blocks is b, three candidate start resource blocks are associated. The number c of resource blocks is associated with one candidate start resource block. Alternatively, when the number of resource blocks L is c, one candidate start resource block is associated. The number d of resource blocks is associated with one candidate start resource block. Alternatively, when the number of resource blocks L is d, one candidate start resource block is associated.

In a possible implementation manner, the first set of the number of resource blocks is {a, b}, where a and b representing the number of different resource blocks are positive integers, and a<b; the resource The block number a is associated with 3 candidate start resource blocks, and the resource block number b is associated with 1 candidate start resource block; or, the resource block number a is associated with 6 candidate start resource blocks, and the resource The block number b is associated with two candidate starting resource blocks.

In a possible implementation, a=1, b=2; or, a=1, b=2, c=4, d=6; or, a=1, b=2, c=3, d = 4.

In a possible implementation manner, the control information includes first information and second information, and the first information is used to indicate the start point of the resource block and/or the length of the first resource block, and the second information The information is used to indicate the first number of repetitions.

In a possible implementation manner, the control information includes third information; the third information is used to indicate the length of the first resource block and the first number of repetitions; or, the third information is used to Indicate the starting position of the resource block, the length of the first resource block, and the first number of repetitions.

In a possible implementation manner, the first device is a coverage level 0, or coverage level 1, or a coverage enhancement level A terminal device.

In a second aspect, a communication method is provided, including: a first communication device receives control information sent by a second communication device, where the control information indicates to the first communication device an allocated starting resource block and an allocated resource block At least one of the number L and the number of repetitions N; the first communication device sends a data channel to the second communication device according to the control information; wherein the number L of the resource blocks is the number of the first resource blocks Indicated in the set, the first resource block number set includes one or more resource block numbers; and/or the start resource block is selected from the first start resource block set, and the first start resource The block set includes one or more starting resource blocks; and/or the number of repetitions N belongs to a first set of repetitions, and the first set of repetitions includes one or more repetitions.

In the embodiment of the present application, the number of resource blocks and the starting resource block are allocated to the first communication device from at least one of the first resource block number set, the first starting resource block set, and the first repetition number set. And the number of repetitions to reduce the number of combinations available for selection, which helps reduce the number of bits representing the combination in the control information.

In a possible implementation manner, the first set of the number of resource blocks is {a, b, c, d}, where a, b, c, and d representing the number of different resource blocks are positive integers, And a<b<c<d, the number of initial resource blocks in the first initial resource block set associated with the number of resource blocks a is 3; and/or, the number of resource blocks b is associated with The number of start resource blocks in the first start resource block set is 2; and/or the number of start resource blocks in the first start resource block set associated with the number of resource blocks c is 2 And/or, the number of start resource blocks in the first start resource block set associated with the number d of resource blocks is 1.

In a possible implementation manner, the first set of the number of resource blocks is {a, b, c, d}, where a, b, c, and d representing the number of different resource blocks are positive integers, And a<b<c<d, the number of initial resource blocks in the first initial resource block set associated with the number of resource blocks a is 3; and/or, the number of resource blocks b is associated with The number of start resource blocks in the first start resource block set is 3; and/or, the number of start resource blocks in the first start resource block set associated with the number of resource blocks c is 1 And/or, the number of start resource blocks in the first start resource block set associated with the number d of resource blocks is 1.

In a possible implementation manner, the first set of the number of resource blocks is {a, b}, where a and b representing the number of different resource blocks are positive integers, and a<b, the resource The number of start resource blocks in the first start resource block set associated with the number of blocks a is 3, and the number of start resource blocks in the first start resource block set associated with the number of resource blocks b Is 1; or, the number of start resource blocks in the first start resource block set associated with the number of resource blocks a is 6, and the first start resource associated with the number of first resource blocks b The number of starting resource blocks in the block set is 2.

In a third aspect, a communication method is provided, which includes: a second communication device determines the number L of resource blocks for the first communication device from a first resource block number set in a plurality of resource block number sets, and Each resource block number set in the resource block number set is associated with a repetition number set; the second communication device determines the repetition number N for the first communication device from the first repetition number set, and the first repetition The number set is the set of repetition times associated with the first resource block number set; the second communication device sends control information to the first communication device, and the control information indicates the number L of resource blocks and the Repeat times N.

In a possible implementation manner, the control information further indicates a start resource block allocated for the first communication device, and the method further includes: the second communication device determines the start resource block from the candidate start resource block. The starting resource block.

In a possible implementation manner, different sets of the number of resource blocks in the plurality of sets of the number of resource blocks have different sets of associated repetition times.

In a possible implementation manner, the number of repetitions N is the number of repetitions for transmitting the control information and/or the number of repetitions for transmitting the data channel.

In the embodiment of the present application, based on the rule that the situation when the number of allocated resource blocks is small is more complicated, and the situation when the number of allocated resource blocks is relatively simple is relatively simple, which is the rule that the number of resource blocks ( For example, the number of repetitions associated with the first set of resource block numbers (for example, the number of repetitions in the first set of repetitions) is relatively large, so as to adapt to a more complicated situation. The number of repetition times (for example, the number of repetitions in the second set of repetition times) associated with a larger number of resource blocks (for example, the second set of resource block numbers) is small, so as to adapt to the simpler Happening.

In a possible implementation manner, the plurality of resource block number sets include a third resource block number set {c, d}, and the first resource block number set is {a}, and the first resource block number set is {a}. The second set of resource block numbers is {b}, the first set of repetition times includes 4 repetition times, the second set of repetition times includes 2 repetition times, and the third resource block number set is associated with The set of three repetitions includes 1 repetition; or, the first resource block number set is {a, b}, the second resource block number set is {c, d}, and the first resource block The set of repetition times associated with the number set includes three repetition times, and the second set of repetition times includes two repetition times; or, the first resource block number set is {a}, and the second resource block The number set is {b, c, d}, the first set of repetition times includes 4 repetition times, and the second set of repetition times includes 2 repetition times; or, the first resource block number set is {e}, the second set of resource block numbers is {f}, the first set of repetitions includes 8 repetitions, and the second set of repetitions includes 4 repetitions, where, represents different resources A, b, c, and d of the number of blocks are positive integers, and a<b<c<d, which represents e of the number of different resource blocks, f is a positive integer, and e<f. Optionally, e=1 and f=2.

In a possible implementation manner, the first resource block number set is {a}, the second resource block number set is {b}, and the third resource block number set is {c, d}; each resource block number in the first resource block number set is associated with two candidate starting resource blocks, and each resource block number in the second resource block number set is associated with 3 One of the candidate start resource blocks, and each resource block number in the third resource block number set is associated with one candidate start resource block; or, in the first resource block number set Each resource block number is associated with three candidate start resource blocks, each resource block number in the second resource block number set is associated with one candidate start resource block, and the third resource Each resource block number in the block number set is associated with one candidate starting resource block.

In a possible implementation, the first resource block number set is {a}, the second resource block number set is {b, c, d}; the first resource block number set The number a of resource blocks in is associated with two candidate start resource blocks, the number of resource blocks in the second resource block number set b is associated with two candidate start resource blocks, and the second resource The number c of resource blocks in the block number set is associated with one candidate start resource block, and the number d of resource blocks in the second resource block number set is associated with one candidate start resource block.

In a possible implementation manner, the first set of the number of resource blocks is {a, b, c, d}, where a, b, c, and d representing the number of different resource blocks are positive integers, And a<b<c<d; the number of resource blocks a is associated with three candidate start resource blocks; and/or the number of resource blocks b is associated with two candidate start resource blocks; and /Or, the number c of resource blocks is associated with two candidate start resource blocks; and/or, the number d of resource blocks is associated with one candidate start resource block.

In a possible implementation manner, the first set of the number of resource blocks is {a, b, c, d}, where a, b, c, and d representing the number of different resource blocks are positive integers, And a<b<c<d; the number of resource blocks a is associated with three candidate start resource blocks; and/or the number of resource blocks b is associated with three candidate start resource blocks; and /Or, the number c of resource blocks is associated with one candidate start resource block; and/or, the number d of resource blocks is associated with one candidate start resource block.

In a possible implementation manner, the first set of the number of resource blocks is {a, b}, where a and b representing the number of different resource blocks are positive integers, and a<b; the resource The number of blocks a is associated with three candidate start resource blocks, and the number of resource blocks b is associated with one candidate start resource block; or, the number of resource blocks a is associated with six candidate starters Resource blocks, the number b of resource blocks is associated with two candidate starting resource blocks.

In a fourth aspect, a communication method is provided, including: a second communication device determines for the first communication device at least one of a starting resource block, the number of resource blocks L, and the number of repetitions N; The first communication device sends control information, the control information indicating at least one of the starting resource block, the number of allocated resource blocks L, and the number of repetitions N, wherein the number of resource blocks L is indicated from the first resource block number set, the first resource block number set includes one or more resource block numbers; and/or the starting resource block is in the first starting resource block set Optionally, the first starting resource block set includes one or more candidate starting resource blocks; and/or the number of repetitions N belongs to a first set of repetitions, and the first set of repetitions includes one or more repetitions frequency.

In a fifth aspect, a first communication device is provided, and the first communication device includes various modules for executing the methods in the foregoing aspects.

In a sixth aspect, a second communication device is provided, and the second communication device includes various modules for executing the methods in the foregoing aspects.

In a seventh aspect, a first communication device is provided. The first communication device may be a terminal device or a chip in the terminal device. The device may include a processing unit and a transceiving unit. When the apparatus is a terminal device, the processing unit may be a processor, and the transceiving unit may be a transceiver; the terminal device may also include a storage unit, and the storage unit may be a memory; For storing instructions, the processing unit executes the instructions stored by the storage unit, so that the terminal device executes the method executed by the terminal device in the above aspects. When the device is a chip in a terminal device, the processing unit may be a processor, the transceiving unit may be an input/output interface, a pin or a circuit, etc.; the processing unit executes instructions stored in the storage unit, In order to enable the terminal device to execute the terminal device execution methods in various aspects, the storage unit may be a storage unit (for example, a register, a cache, etc.) in the chip, or may be a storage unit located in the chip in the terminal device. External storage unit (for example, read only memory, random access memory, etc.).

In an eighth aspect, a second communication device is provided. The device may be a network device or a terminal device, or may be a chip in the network device or the terminal device. The communication device may include a processing unit and a transceiving unit. When the device is a network device, the processing unit may be a processor, and the transceiving unit may be a transceiver; the network device may also include a storage unit, and the storage unit may be a memory; For storing instructions, the processing unit executes the instructions stored by the storage unit, so that the network device executes the methods executed by the network device in various aspects. When the device is a chip in a network device, the processing unit may be a processor, the transceiving unit may be an input/output interface, a pin or a circuit, etc.; the processing unit executes the instructions stored in the storage unit, To enable the network device to perform the method in the third aspect, the storage unit may be a storage unit (for example, a register, a cache, etc.) in the chip, or may be a storage unit in the network device located outside the chip. The storage unit (for example, read only memory, random access memory, etc.).

In a ninth aspect, a computer program product is provided, and the computer program product includes: computer program code, which when the computer program code runs on a computer, causes the computer to execute the methods in the foregoing aspects.

It should be noted that the above-mentioned computer program code may be stored in whole or in part on a first storage medium, where the first storage medium may be packaged with the processor or separately packaged with the processor. This embodiment of the application does not deal with this. Specific restrictions.

In a tenth aspect, a computer-readable medium is provided, and the computer-readable medium stores program code, and when the computer program code runs on a computer, the computer executes the methods in the above-mentioned aspects.

Description of the drawings

FIG. 1 is a wireless communication system 100 applied in an embodiment of the present application.

Fig. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.

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

Fig. 4 is a schematic diagram of a communication device according to an embodiment of the present application.

Fig. 5 is a schematic diagram of a communication device according to an embodiment of the present application.

Fig. 6 is a schematic block diagram of a communication device according to another embodiment of the present application.

Fig. 7 is a schematic diagram of a communication device according to an embodiment of the present application.

Fig. 8 is a schematic diagram of a communication device according to an embodiment of the present application.

FIG. 9 is a schematic block diagram of a communication device according to another embodiment of the present application.

detailed description

The technical solution in this application will be described below in conjunction with the drawings.

FIG. 1 is a wireless communication system 100 applied in an embodiment of the present application. The wireless communication system 100 may include a network device 110. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.

Figure 1 exemplarily shows one network device and two terminals. Optionally, the wireless communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminals. The implementation of this application The example does not limit this.

Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.

It should be understood that the technical solution of this application can be applied to various communication systems, such as: Global System of Mobile Communications (GSM) system, Code Division Multiple Access (CDMA) system, and broadband code division multiple Address (Wideband Code Division Multiple Access, WCDMA) system, general packet radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, advanced long term evolution (Advanced long term evolution, LTE-A) System, Universal Mobile Telecommunication System (UMTS), New Radio Access Technology (NR), 5G, etc.

It should also be understood that, in the embodiments of the present application, terminal devices may include, but are not limited to, terminal devices used in the Internet of Things, for example, terminal devices that access NB-IoT (may be referred to as "NB-IoT terminals" ): smart meter reading equipment, logistics tracking equipment, environmental monitoring equipment, etc.; the terminal can also include but not limited to mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal), mobile phone (Mobile Telephone), user equipment ( User Equipment (UE), mobile phone (handset), and portable equipment (portable equipment), etc. The terminal device can communicate with one or more core networks via the Radio Access Network (RAN). For example, the terminal device can It is a mobile phone (or called a "cellular" phone), a computer with wireless communication function, etc. The terminal device can also be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device.

In the embodiments of this application, the network device may be an access network device, such as a base station, a Transmit and Receive Point (TRP), or an access point. The base station may be a base station (Base Transceiver Station in GSM or CDMA). , BTS), it can also be a base station (NodeB) in WCDMA, an evolved Node B (eNB or e-NodeB) in LTE, or a base station (gNB) of NR or 5G, this application The embodiment does not specifically limit this.

The following describes the traditional resource allocation method based on the communication system shown in FIG. 1. The network device sends downlink control information to the terminal device, and indicates the resource block allocated to the terminal device and the number of repetitions through the downlink control information, so that the terminal device is instructed to transmit the data channel on the resource block according to the number of repetitions. Wherein, the resource block allocated for the terminal device is indicated by the starting resource block and the number of resource blocks (also called "resource block length").

The current communication protocol specifies multiple initial resource blocks, multiple resource block numbers, and multiple repetition times. When the network device determines the resource block, the number of resource blocks, and the number of repetitions for the terminal device, it can be the terminal device from multiple combinations obtained from the above multiple starting resource blocks, multiple resource block numbers, and multiple repetition times. Choose a suitable combination.

The aforementioned multiple combinations include a combination of the number of each resource block and each of the aforementioned multiple (for example, 4) repetition times. However, this combination of the number of combined resource blocks and the number of repetitions is unreasonable, which increases the number of combinations that need to be identified between the network device and the terminal device, resulting in an increase in the overhead of downlink control information. For example, if the channel quality is poor, in order to improve the reliability of data transmission, the network device usually allocates a short number of resource blocks to the terminal device so that the total transmission power of the terminal device can be concentrated on the allocated resource block. Correspondingly, the network device also preferentially selects a larger number of repetitions when selecting the number of repetitions. For another example, if the channel quality is good, the reliability of data transmission can be guaranteed by the channel quality, and the network device will allocate a longer number of resource blocks to the terminal device to improve the efficiency of data transmission by the terminal device. Because the channel quality is better, the network equipment can usually choose a smaller number of repetitions. In summary, the number of repetitions allocated to terminal equipment is related to channel quality, and the number of resource blocks allocated to terminal equipment is also related to channel quality. Based on this rule, the embodiments of the present application provide a new resource allocation mechanism to improve the rationality of the combination between the number of resource blocks and the number of repetitions.

The following describes the communication method of the embodiment of the present application in conjunction with FIG. 2. Fig. 2 is a schematic flowchart of a communication method according to an embodiment of the present application. The method shown in FIG. 2 includes step 210 to step 220. It should be noted that the method of the embodiment of the present application can be applied to the scenario of communication between a network device and a terminal device in FIG. 1. In the following, the first communication device may be a terminal device, and the second communication device may be a network device. The solution of the embodiment of the present application can also be applied to a device-to-device (D2D) communication scenario. The first communication device and the second communication device below may be two terminal devices that communicate with each other.

210. The first communication device receives control information, where the control information indicates the number L of resource blocks allocated to the first communication device and the number of repetitions N. The above-mentioned number L of resource blocks belongs to the first resource block number set in the plurality of resource block number sets, each resource block number set in the plurality of resource block number sets is associated with a set of repetition times, and the number of repetitions N belongs to The first set of repetition times, and the first set of repetition times is a set of repetition times associated with the first resource block number set.

The above-mentioned number of resource blocks L is used to indicate the number of resource blocks allocated for the first communication device, or the number of resource blocks occupied by the first communication device to transmit a data channel, for example, may be the resource block length mentioned above. It should be noted that the multiple resource blocks determined according to the number L of resource blocks may be continuous or discontinuous.

The aforementioned number of repetitions N may indicate the number of repetitions of transmitting the control information, or the number of repetitions of transmitting the data channel, or both.

Each resource block number set in the multiple resource block number sets is associated with a set of repetition times, which may include different sets of resource block numbers associated with different sets of repetition times. Or at least two resource block number sets in the multiple resource block number sets are associated with different repetition number sets, and the remaining resource block number sets in the multiple resource block number sets may be associated with the same repetition number set.

It should be understood that the foregoing first set of resource block numbers may include one or more resource block numbers, and the foregoing first set of repetition times may include one or more repetition times.

It should also be understood that the embodiment of the present application does not limit the name of the control information, and may refer to information with the same function in the current communication protocol and the future communication protocol. For example, the downlink control information (DCI) in the existing communication protocol.

It should be noted that the above-mentioned "number of resource blocks L" may be the number of allocated resource blocks or the length of allocated resource blocks. The value of the number of resource blocks is not limited, where L is only a symbol, which is only used to distinguish from the number of other resource blocks, and does not indicate a value. The number L of resource blocks can be replaced with "resource block length" or "first resource block number". The "number of repetitions N" mentioned above may refer to a certain number of repetitions, but the value of the number of repetitions is not limited, where N is only used to distinguish the number of other resource blocks and does not indicate a value. The above "number of repetitions N" can be replaced with "the first number of repetitions".

It should be noted that the number of resource blocks L and the number of repetitions N can be carried in the same field in the control information, and the number of resource blocks L and the number of repetitions N can also be carried in different fields in the control information. The embodiment does not limit this.

Optionally, the first communication device is a coverage level 0, or coverage level 1, or a coverage enhancement level A terminal device.

220. The first communication device sends a data channel to the second communication device according to the number of resource blocks L and the number of repetitions N.

If the number of repetitions N is the number of repetitions for transmitting DCI, the first communication device sends a data channel to the second communication device according to the number of repetitions N, which can be understood as the number of repetitions that the first communication device (ie terminal device) can transmit DCI to determine the transmission data The timing of the channel.

Based on the above introduction, if the channel quality is good, a larger number of resource blocks will be allocated to the first communication device. When the number of resource blocks allocated to the first communication device is small, there are many corresponding situations. In addition to the poor channel quality described above, the number of resource blocks allocated to the first communication device is small, and there may be other In one case, the amount of data to be transmitted by the first communication device is inherently small, and there is no need for a large number of resource blocks.

It can be seen that when establishing the association between the resource block number set and the repetition number set, if the number of resource blocks in the resource block number set is larger, the applicable situation is relatively simple, that is, the channel quality is better. Therefore, The number of repetitions contained in the set of associated repetitions may be smaller, that is, the number of repetitions available for selection in the set of associated repetitions is smaller. If the number of resource blocks in the resource block number set is small, the applicable situations are more complicated, including poor channel quality and less data to be transmitted. Therefore, the repetition contained in the associated set of repetitions The number of times can be larger, that is, the number of repetition times available for selection in the associated set of repetition times is larger. In this way, more combinations can be obtained according to the number of resource blocks and the set of repetition times to adapt to the above-mentioned multiple Happening.

That is, the plurality of resource block number sets further include a second resource block number set, and the second resource block number set is associated with a second set of repetition times, and the smallest set of the second resource block number set is The number of resource blocks is greater than the maximum number of resource blocks in the first set of resource block numbers, and the number of repetitions in the second set of repetitions is not more than (that is, less than or equal to) the first set of repetitions The number of repetitions in a set of repetitions. Optionally, the foregoing second set of repetition times is a subset of the first set of repetition times. Of course, there may not be a subset relationship between the first set of repetition times and the second set of repetition times.

For example, multiple resource block number sets include a first resource block number set and a second resource block number set, where the number of resource blocks in the first resource block number set is 1, and the number of resource blocks in the second resource block number set If the number of resource blocks is 2, then the first set of repetition times associated with the first set of resource block numbers is {n ₁ , n ₂ , n ₃ , n ₄ }, and the second set of repetition times associated with the second set of resource block numbers The set is {n ₁ ,n ₄ }, where n ₁ , n ₂ , n ₃ , and n ₄ representing the number of repetitions are positive integers.

In other words, the smallest number of resource blocks in the first set of resource block numbers is greater than the largest number of resource blocks in the second set of resource block numbers, and the number of repetitions in the first set of repetition times The number of is no more than (that is, less than or equal to) the number of repetitions in the second set of repetitions. Optionally, the foregoing first set of repetition times is a subset of the second set of repetition times. Of course, there may not be a subset relationship between the first set of repetition times and the second set of repetition times.

The embodiment of the application provides four ways to associate the number of resource blocks and the number of repetitions to control the number of combinations of the number of resource blocks and the number of repetitions, thereby controlling the bits occupied by the number of resource blocks and the number of repetitions in the control information. Bit.

Association method 1: The plurality of resource block number sets include a third resource block number set {c, d}, and the first resource block number set is {a}, and the second resource block number set The set is {b}, the first set of repetition times includes 4 repetition times, the second set of repetition times includes 2 repetition times, and the third set of repetition times associated with the third resource block number set includes One type of repetition, where a, b, c, and d representing the number of different resource blocks are positive integers, and a<b<c<d.

Associating method two, the first resource block number set is {a, b}, the second resource block number set is {c, d}, and the number of repetitions associated with the first resource block number set The set includes 3 kinds of repetition times, the second set of repetition times includes 2 kinds of repetition times, a, b, c, and d representing the number of different resource blocks are positive integers, and a<b<c<d.

Associating manner three, the first set of resource block numbers is {a}, the second set of resource block numbers is {b, c, d}, and the first set of repetition times includes 4 repetition times, so The second set of repetition times includes 2 types of repetition times, a, b, c, and d representing the number of different resource blocks are positive integers, and a<b<c<d.

Associating manner four, the first set of resource block numbers is {e}, the second set of resource block numbers is {f}, the first set of repetitions includes 8 repetitions, and the second repetition The number set includes 4 types of repetition times, where e, f representing the number of different resource blocks, is a positive integer, and e<f.

It should be noted that the embodiment of the application does not limit the specific values of the repetition times in the above-mentioned association method 1 to association method 4, and can be compatible with the repetition times specified in the current communication protocol and the repetition times specified in the future communication protocol.

In addition to indicating the number of resource blocks allocated to the first communication device L and the number of repetitions N, the above control information can also indicate the starting resource block allocated to the first communication device, so that the first communication device can according to the starting resource block and The number of resource blocks determines the resource blocks occupied by the transmission data channel.

That is, the method further includes: the first communication device determines the initial resource block allocated for the first communication device according to the control information; step 220 includes the first communication device according to the number of resource blocks L. The number of repetitions N and the starting resource block send a data channel to the second communication device.

It should be noted that the above-mentioned starting resource block may be pre-defined in the communication protocol, or may be indicated by the second communication device to the first communication device through signaling. The signaling may be any one of physical layer signaling, media access layer signaling, or radio resource control signaling.

The embodiments of the present application provide a variety of ways to associate the number of resource blocks with the starting resource block to control the number of resource blocks and the number of candidate starting resource block combinations, so that the number of resource blocks indicated in the control information is L and the starting resource block. Bits occupied by the initial resource block. Wherein, the starting resource block allocated for the first communication device is determined from candidate starting resource blocks.

Optionally, multiple resource block number sets can be associated with the same candidate starting resource block, that is, one or more candidate starting resource blocks that can be associated with each resource block number set are the same. Of course, the foregoing multiple resource block number sets may also be associated with multiple candidate starting resource block sets, and the candidate starting resource block set includes one or more candidate starting resource blocks. Wherein, the candidate starting resource block sets associated with at least two resource block number sets in the multiple resource block number sets are different. The following describes the association method between the number set of resource blocks and the candidate starting resource block in combination with association method five to association method eight.

Associating mode five, if the first resource block number set is {a}, the second resource block number set is {b}, and the third resource block number set is {c, d}, Then the number of resource blocks and the association mode of the starting resource block can be subdivided into the following three association modes five (1) to five (2).

Association mode five (1), each resource block number in the first resource block number set is associated with two candidate starting resource blocks, and the second resource block number set is each resource block number Three candidate start resource blocks are associated, and each resource block number in the third resource block number set is associated with one candidate start resource block.

Association mode five (2), each resource block number in the first resource block number set is associated with 3 candidate starting resource blocks, and the second resource block number set is each resource block number One candidate start resource block is associated, and each resource block number in the third resource block number set is associated with one candidate start resource block.

Associating manner six, the first resource block number set is {a, b}, the second resource block number set is {c, d}, and each resource in the first resource block number set The number of blocks is associated with two candidate start resource blocks, and each resource block number in the second resource block number set is associated with one candidate start resource block.

Associating manner seven, the first resource block number set is {a}, the second resource block number set is {b, c, d}, and the number of resource blocks in the first resource block number set The number a is associated with two candidate start resource blocks, the number of resource blocks in the second resource block number set b is associated with two candidate start resource blocks, and the number of resource blocks in the second resource block number set is The number c is associated with one candidate start resource block, and the number d of resource blocks in the second resource block number set is associated with one candidate start resource block.

Associating manner eight, the first resource block number set is {a}, the second resource block number set is {b}, and the resource block number a in the first resource block number set is associated with 3 Two candidate start resource blocks are associated with the number b of resource blocks in the first resource block number set.

Optionally, in the eighth association manner, the first communication device may be coverage level 2, or coverage level 3, or coverage enhancement level B terminal equipment.

It should be noted that the above-mentioned starting resource block may be indicated by an identifier (for example, an index number) of the resource block.

Optionally, a=1, b=2; or, a=1, b=2, c=4, d=6; or, a=1, b=2, c=3, d=4.

The association relationship between the resource block number set and the number of repetitions indicated in the above association method 1 to association method 4 can be combined with the association relationship between the resource block number set and the starting resource block indicated in the association method 5 to association method 6 use. For example, association method one can be used in combination with association method five, association method two can be used in combination with association method six, and association method three can be used in combination with association method seven.

Three specific implementations are listed below in conjunction with Tables 1 to 3. It should be noted that the specific values shown in Tables 1 to 3 are only to help understand the solutions of the embodiments of the present application, and do not limit the embodiments of the present application.

The specific implementations shown in Table 1 to Table 3 are described by taking the allocation of resources in a narrowband or bandwidth part (bandwidth part, BWP) as an example. It is assumed that a narrowband or BWP includes 6 resource blocks, and the indexes of the resource blocks are sequentially It is 0, 1, 2, 3, 4, 5.

Table 1

In Table 1, the first resource block number set is {1}, the second resource block number set is {2}, and the second resource block number set is {4, 6}. The number of candidate start resource block indexes corresponding to the first resource block number set is 2, and the first resource block number set is associated with the first set of repetition times; the candidate start corresponding to the second resource block number set The number of resource block indexes is 3, and the second resource block number set is associated with the second set of repetition times; the number of candidate start resource block indexes corresponding to the third resource block number set is 1, and The third resource block number set is associated with the third repetition number set.

Among them, there are 4 types of repetitions in the first set of repetitions, namely {n ₁ , n ₂ , n ₃ , n ₄ }. There are two repetition times in the second set of repetition times, which can be two of n ₁ , n ₂ , n ₃ , and n ₄ . For example, the second set of repetition times is {n ₂ ,n ₄ }. Or, the second set of repetition times is {n ₁ ,n ₃ }. Or, the second set of repetition times is {n ₃ ,n ₄ }. There is one type of repetition number in the third repetition number set, which can be one of n ₁ , n ₂ , n ₃ , and n ₄ . For example, the third set of repetition times is {n ₁ }. Or, the third set of repetition times is {n ₂ }, where n ₁ , n ₂ , n ₃ , and n ₄ are positive integers. Optionally, n ₁ <n ₂ <n ₃ <n ₄ .

Based on Table 1, there are 16 combinations of the number of resource blocks, candidate starting resources, and the number of repetitions, that is, 2×4+3×2+1×1+1×1=16=2 ⁴ . In this way, 4 bits can be used in the control information to express the above 16 combinations.

Optionally, the indexes of the two candidate starting resource blocks corresponding to the first resource block number set may be two of the indexes of the six resource blocks. For example, {0, 3} or {0, 1} or {0, 2} or {4, 5} or {0, 4}. The indexes of the 3 candidate starting resource blocks corresponding to the second resource block number set may be 3 of the 6 resource blocks. For example, {0, 2, 4} or {0, 1, 4} or {1, 3, 5}. The index of one candidate starting resource block corresponding to the third resource block number set may be fixed to one of the six resource blocks, for example, fixed to {0}.

When the number of resource blocks occupied by the first communication device is small, in order to improve resource utilization, resources can be allocated to other communication devices on the remaining free resource blocks, that is, multiple communication devices share a resource block in a narrowband . The foregoing configuration of candidate start resource blocks corresponding to different numbers of resource blocks is beneficial to avoid resource collisions when resources are allocated to multiple communication devices in a narrowband.

For example, the number of resource blocks allocated to the communication device 1 is 2, belonging to the second resource block number set, and the index of the candidate starting resource block associated with the second resource block number set is 0, 2, and 4. The number of resource blocks allocated to the communication device 1 is 4, belonging to the third resource block number set, and the index of the candidate start resource block associated with the third resource block number set is 0. In order to avoid collisions, in the second Among the index 0, 2, and 4 of the candidate start resource blocks associated with the resource block number set, the index of the candidate start resource block that is preferentially selected is 4. In this way, the indexes of the resource blocks occupied by the communication device 1 are 4 and 5, and the indexes of the resource blocks occupied by the communication device 2 are 0, 1, 2, and 3.

In summary, in order to avoid collisions, it is possible to associate corresponding candidate resource block indexes for different resource block number sets. For example, the index of the candidate start resource block associated with the first resource block number set is 0 and 4, the index of the candidate start resource block associated with the second resource block number set may be 0, 2, 4, and the second resource The index of the candidate starting resource block associated with the block number set may be 0.

Table 2

In Table 2, the first resource block number set is {1}, and the second resource block number set is {2, 4, 6}. The number of candidate start resource block indexes corresponding to the first resource block number set is 2, and the first resource block number set is associated with the first set of repetition times; the candidate start corresponding to the second resource block number set The number of resource block indexes is two, and the second resource block number set is associated with the second set of repetition times.

Among them, there are 4 kinds of repetition times in the first set of repetition times {n ₁ , n ₂ , n ₃ , n ₄ }. There are two types of repetition times in the second set of repetition times, which can be two of n ₁ , n ₂ , n ₃ , and n ₄ . For example, the second set of repetition times is {n ₂ ,n ₄ }. Or, the second set of repetition times is {n ₁ ,n ₃ }. Or, the second set of repetition times is {n ₃ ,n ₄ }. There is one type of repetition number in the third set of repetition times, which can be one of n ₁ , n ₂ , n ₃ , and n ₄ . For example, the third set of repetition times is {n ₁ }. Or, the third set of repetition times is {n ₂ }, where n ₁ , n ₂ , n ₃ , and n ₄ are positive integers. Optionally, n ₁ <n ₂ <n ₃ <n ₄ .

Based on Table 2, there are 16 combinations of the number of resource blocks, candidate starting resources and the number of repetitions, namely 2×4+2×2+1×2+1×2=16=2 ⁴ . In this way, 4 bits can be used in the control information to express the above 16 combinations.

Optionally, the indexes of the two candidate starting resource blocks corresponding to the first resource block number set may be two of the indexes of the six resource blocks. For example, {0, 3} or {0, 1} or {0, 2} or {4, 5} or {0, 4}. The indexes of the two candidate starting resource blocks corresponding to the second resource block number set may be two of the six resource blocks. For example, {0, 2} or {2, 4} or {0, 4} or {1, 4}. The index of one candidate starting resource block corresponding to the third resource block number set may be one of the above six resource blocks. For example, {0}.

In order to avoid collisions while improving the utilization of resources, the index of the corresponding candidate resource block can be associated with different resource block number sets. For example, the index of the candidate start resource block associated with the first resource block number set is 0 and 4, and the index of the candidate start resource block associated with the resource block number 2 in the second resource block number set may be 1, 4. , The index of the candidate starting resource block associated with the number of resource blocks 4 and 6 in the second resource block number set may be 0.

table 3

In Table 3, the first resource block number set is {1}, and the second resource block number set is {2}. The number of candidate start resource block indexes corresponding to the first resource block number set is 3, and the first resource block number set is associated with the first set of repetition times; the candidate start corresponding to the second resource block number set The number of resource block indexes is two, and the second resource block number set is associated with the second set of repetition times.

Among them, there are 8 repetition times in the first set of repetition times, for example, {n ₁ , n ₂ , n ₃ , n ₄ , n ₅ , n ₆ , n ₇ , n ₈ }. There are 4 kinds of repetition times in the second set of repetition times, which can be 4 kinds of n ₁ , n ₂ , n ₃ , n ₄ , n ₅ , n ₆ , n ₇ , and n ₈ . For example, {n ₁ ,n ₂ ,n ₃ ,n ₄ }, or {n ₁ ,n ₃ ,n ₅ ,n ₇ }, or {n ₂ ,n ₄ ,n ₆ ,n ₈ }, where n ₁ , n ₂ , n ₃ , n ₄ , n ₅ , n ₆ , n ₇ , and n ₈ are positive integers. Optionally, n ₁ <n ₂ <n ₃ <n ₄ <n ₅ <n ₆ <n ₇ <n ₈ .

Based on Table 2, there are 16 combinations of the number of resource blocks, candidate starting resources, and the number of repetitions, that is, 3×8+2×4=32=2 ⁵ . In this way, 5 bits can be used in the control information to express the above 32 combinations.

Optionally, the indexes of the three candidate starting resource blocks corresponding to the first resource block number set may be three of the indexes of the six resource blocks. For example, {0, 2, 4} or {1, 3, 5} or {0, 1, 2} or {3, 4, 5}. The indexes of the two candidate starting resource blocks corresponding to the second resource block number set may be two of the six resource blocks. For example, {0, 2} or {2, 4}.

In order to avoid collisions while improving the utilization of resources, the index of the corresponding candidate resource block can be associated with different resource block number sets. For example, the index of the candidate start resource block associated with the first resource block number set is {3, 4, 5}, and the index of the candidate start resource block associated with the second resource block number set may be {0, 2} .

Based on the above introduction, each combination of the number of resource blocks, the starting resource block, and the number of repetitions in the traditional combination is based on the number of multiple resource blocks, multiple starting resource blocks, and the number of repetitions specified in the communication protocol. Selected from a variety of repetition times, so that the number of combinations that can be identified between the first communication device and the second communication device is larger. Accordingly, in order to be able to express a larger number of combinations, the number of bits occupied in the control information is also More.

The embodiment of the present application also provides a communication method, which reduces the selection range of any parameter among the number of selectable multiple resource blocks, multiple starting resource blocks, and multiple repetition times, so as to reduce the final options available. The total number of combinations is beneficial to reduce the number of bits occupied by the combination in the control information.

The following describes the communication method of the embodiment of the present application in conjunction with FIG. 3, which is a schematic flowchart of the communication method of the embodiment of the present application. The method shown in FIG. 3 includes step 310 and step 320. It should be noted that the method of the embodiment of the present application can be applied to the scenario of communication between a network device and a terminal device in FIG. 1. In the following, the first communication device may be a terminal device, and the second communication device may be a network device. The solution of the embodiment of the present application may also be applied to a scenario of D2D communication. The first communication device and the second communication device below may be two terminal devices that communicate with each other. It should also be understood that the terms involved in the following are the same as the terms involved in the method shown in FIG. 2, and their meanings are also the same. For brevity, they will not be repeated here.

310. The first communication device receives control information sent by the second communication device, where the control information indicates at least one of the starting resource block allocated, the number of allocated resource blocks L, and the number of repetitions N by the first communication device One, wherein the number L of resource blocks is indicated from a first resource block number set, and the first resource block number set includes one or more resource block numbers; and/or the start The initial resource block is selected from the first initial resource block set, and the first initial resource block set includes one or more initial resource blocks; and/or the number of repetitions N belongs to the first set of repetitions, the first A set of repetitions includes one or more repetitions.

The above-mentioned first resource block number set is a subset of a preset resource block number set, where the preset resource block number set includes all the number of resource blocks available for selection, among which all the available resource blocks The number can be all or part of the number of resource blocks specified by the communication protocol. For example, the number of resource blocks included in the foregoing resource block number set may be all resource blocks in a narrowband.

The above-mentioned first starting resource block set is a subset of a preset starting resource block set, where the preset starting resource block set may include all starting resource blocks that can be selected, and all of the starting resource blocks that can be selected start The starting resource block can be all or part of the starting resource block specified by the communication protocol.

The above-mentioned first set of repetition times is a subset of the preset repetition times. The combination of the preset repetition times includes all the repetition times available for selection, and the total repetition times available for selection may be all or all specified by the communication protocol. Part of the starting resource block.

320. The first communication device sends a data channel to the second communication device according to the control information.

In the following, taking the first resource block number set as an example, an association manner between the number of resource blocks and the number of starting resource blocks (or candidate starting resources) in the embodiment of the present application is introduced. The following association method 9 and association method 10 focus on the association method between the number of resource blocks and the number of initial resource blocks, and the number of repetitions associated with the first resource block number set is not limited.

It should be noted that the "set of the number of first resource blocks" involved in FIG. 3 may be the "set of the number of first resource blocks" involved in FIG. 2. Thus, the solution shown in FIG. 2 is the same as that shown in FIG. The solutions can be used in combination, that is, to describe the association manner between the number of resource blocks in a certain resource block number set in the multiple resource block number sets shown in FIG. 2 and the starting resource block. Of course, the "first resource block number set" involved in FIG. 3 may also have a different meaning from the "first resource block number set" involved in FIG. 2. At this time, the method shown in FIG. 3 is the same as that shown in FIG. The method shown can be a decoupled method.

Associated way nine, the first resource block number set is {a, b, c, d}, where a, b, c, d representing the number of different resource blocks are positive integers, and a<b<c In the case of <d, the following will introduce 4 specific implementation methods in combination with association method 9 (1) to association method 9 (4).

(1) The number of start resource blocks in the first start resource block set associated with the number of resource blocks a is 3; and/or the first start number associated with the number of resource blocks b The number of start resource blocks in the resource block set is 2; and/or, the number of start resource blocks in the first start resource block set associated with the number of resource blocks c is 2; and/or, The number of start resource blocks in the first start resource block set associated with the number of resource blocks d is 1.

(2) The number of start resource blocks in the first start resource block set associated with the number of resource blocks a is 3; and/or the first start number associated with the number of resource blocks b The number of start resource blocks in the resource block set is 3; and/or the number of start resource blocks in the first start resource block set associated with the number of resource blocks c is 1; and/or, The number of start resource blocks in the first start resource block set associated with the number of resource blocks d is 1.

(3) The number of start resource blocks in the first start resource block set associated with the number of resource blocks a is 2; and/or the first start number associated with the number of resource blocks b The number of starting resource blocks in the resource block set is 3; and/or, the number of starting resource blocks in the first starting resource block set associated with the number of resource blocks c is 2; and/or, The number of start resource blocks in the first start resource block set associated with the number of resource blocks d is 1.

(4) The number of start resource blocks in the first start resource block set associated with the number of resource blocks a is 3; and/or the first start number associated with the number of resource blocks b The number of starting resource blocks in the resource block set is 3; and/or, the number of starting resource blocks in the first starting resource block set associated with the number of resource blocks c is 2; and/or, The number of start resource blocks in the first start resource block set associated with the number of resource blocks d is 1.

The tenth association method, the first set of the number of resource blocks is {a, b}, where a and b representing the number of different resource blocks are positive integers, and if a<b, the following combination of association methods Ten (one) and related methods Ten (two) introduce two specific implementation methods.

(1) The number of start resource blocks in the first start resource block set associated with the number of resource blocks a is 3, and the number of resource blocks b is associated in the first start resource block set The number of starting resource blocks is 1.

(2) The number of start resource blocks in the first start resource block set associated with the number of resource blocks a is 6, and the first start resource block associated with the number of first resource blocks b The number of starting resource blocks in the set is 2.

Optionally, in the above-mentioned association method nine to association method ten, a=1, b=2; or, a=1, b=2, c=4, d=6; or, a=1, b=2, c=3, d=4.

The first set of resource block numbers in the nine to ten association modes may be associated with a set of repetition times, that is, the first set of repetition times, which is described in detail below in conjunction with Tables 4 to 6. It should be noted that the specific values shown in Tables 4 to 6 are only to help understand the solutions of the embodiments of the present application, and do not limit the embodiments of the present application. The number of resource blocks in Table 4 to Table 6 may be obtained based on a combination of the number of resource blocks supported in the communication protocol. For example, in addition to {1, 2, 4, 6} listed in Table 4 to Table 5, the first resource block number set may also be {1, 2, 3, 4}, etc. For another example, the number of two resource blocks included in the first resource block number set shown in Table 6 may be {2, 4}, etc. in addition to {1, 2}.

The specific implementation manners shown in Table 4 to Table 6 are described by using resources in a narrowband or bandwidth part (BWP) as an example. For example, it is assumed that a narrowband or BWP includes 6 resource blocks, and the indexes of the resource blocks in the narrowband are 0, 1, 2, 3, 4, and 5 in order.

Table 4

In Table 4, the first resource block number set is {1, 2, 4, 6}, and the first resource block number set is associated with the first set of repetition times. Among them, the number of candidate start resource block indexes corresponding to the number of resource blocks 1 is 2, the number of candidate start resource block indexes corresponding to the number of resource blocks 2 is 3, and the number of resource blocks 4 corresponds to The number of indexes of the candidate start resource block is two, and the number of indexes of the candidate start resource block corresponding to the number of resource blocks is one.

Optionally, there are 4 repetition times in the first set of repetition times, that is, {n ₁ , n ₂ , n ₃ , n ₄ }, n ₁ , n ₂ , n ₃ , and n ₄ are positive integers. Optionally, n ₁ <n ₂ <n ₃ <n ₄ .

Based on Table 4, there are 32 combinations of the number of resource blocks, candidate starting resources and the number of repetitions, that is, 2×4+3×4+2×4+1×4=32=2 ⁵ . In this way, 5 bits can be used in the control information to express the above 32 combinations.

Optionally, the indexes of the two candidate starting resource blocks corresponding to the number of resource blocks of 1 may be two of the indexes of the above 6 resource blocks. For example, {0, 3} or {0, 1} or {0, 2} or {4, 5} or {0, 4}. The indexes of the three candidate starting resource blocks corresponding to the number of resource blocks of 2 may be three of the above-mentioned six resource blocks. For example, {0, 2, 4} or {0, 1, 2} or {1, 3, 5}. The indexes of the two candidate starting resource blocks corresponding to the number of resource blocks of 4 may be two of the above six resource blocks. For example, {0, 2}. The index of one candidate starting resource block corresponding to the number of resource blocks 6 may be fixed to one of the above six resource blocks. For example, it is fixed to {0}.

In summary, in order to avoid collisions, the indexes of corresponding candidate resource blocks can be associated with different numbers of resource blocks. For example, the index of the candidate start resource block associated with the number of resource blocks 1 is 4 and 5, the index of the candidate start resource block associated with the number of resource blocks 2 can be 0, 2, 4, and the number of resource blocks 4 is associated The index of the candidate start resource block may be 0, and the index of the candidate start resource block associated with the number of resource blocks 6 may be 0.

table 5

In Table 5, the first resource block number set is {1, 2, 4, 6}, and the first resource block number set is associated with the first set of repetition times. Among them, the number of candidate start resource block indexes corresponding to the number of resource blocks 1 is 3, the number of candidate start resource block indexes corresponding to the number of resource blocks 2 is 3, and the number of resource blocks 4 corresponds to The number of indexes of candidate start resource blocks is one, and the number of indexes of candidate start resource blocks corresponding to the number of resource blocks is one.

Based on Table 5, there are 32 combinations of the number of resource blocks, candidate starting resources, and the number of repetitions, that is, 3×4+3×4+1×4+1×4=32=2 ⁵ . In this way, 5 bits can be used in the control information to express the above 32 combinations.

Optionally, the indexes of the three candidate starting resource blocks corresponding to the number of resource blocks of 1 may be three of the indexes of the above six resource blocks. For example, {0, 2, 4} or {1, 3, 5} or {0, 1, 2}. The indexes of the three candidate starting resource blocks corresponding to the number of resource blocks of 2 may be three of the above-mentioned six resource blocks. For example, {0, 2, 4} or {0, 1, 2} or {1, 3, 5}. The index of one candidate starting resource block corresponding to the number of resource blocks of 4 may be fixed to one of the above-mentioned six resource blocks. For example, it is fixed to {0}. The index of one candidate starting resource block corresponding to the number of resource blocks 6 may be fixed to one of the above six resource blocks. For example, it is fixed to {0}.

In summary, in order to avoid collisions, the indexes of corresponding candidate resource blocks can be associated with different numbers of resource blocks. For example, the index of the candidate start resource block associated with the number of resource blocks 1 is 3, 4, and 5, the index of the candidate start resource block associated with the number of resource blocks 2 can be 0, 1, 2, and the number of resource blocks is 4. The index of the associated candidate start resource block may be 0, and the index of the candidate start resource block associated with the number of resource blocks 6 may be 0.

Table 6

In Table 6, the first resource block number set is {1, 2}, and the first resource block number set is associated with the first set of repetition times. Wherein, the number of candidate start resource block indexes corresponding to the number of resource blocks of 1 is 3, and the number of candidate start resource block indexes corresponding to the number of resource blocks of 2 is one.

Based on Table 6, there are 16 combinations of the number of resource blocks, candidate starting resources, and the number of repetitions, namely 3×4+1×4=16=2 ⁴ . In this way, 4 bits can be used to express the above 16 combinations in the control information.

Optionally, the indexes of the three candidate starting resource blocks corresponding to the number of resource blocks of 1 may be three of the indexes of the above six resource blocks. For example, {0, 2, 4} or {1, 3, 5} or {0, 1, 2}. The index of one candidate starting resource block corresponding to the number of resource blocks 2 may be one of the above six resource blocks. For example, {0} or {4}.

In summary, in order to avoid collisions, the indexes of corresponding candidate resource blocks can be associated with different numbers of resource blocks. For example, the index of the candidate start resource block associated with the resource block number 1 is 3, 4, and 5, and the index of the candidate start resource block associated with the resource block number 2 may be 0.

It should be noted that, based on the first resource block set shown in Table 6, the number of resource blocks in the first resource block set, the number of candidate start resource block indexes, and the association between the first set of repetition times There are many ways.

For example, in the case where there are three types of candidate resource block indexes associated with the number of resource blocks 1 and one type of candidate resource block index is associated with the number of resource blocks 2, if the first set of repetition times contains 2 repetition times At this time, there are 8 combinations of the number of resource blocks, candidate starting resources and the number of repetitions, that is, 3×2+1×2=8=2 ^{3. In} this way, ³ bits can be used in the control information to represent the above 8 combinations. If the first set of repetition times includes 4 repetition times, there are 16 combinations of the number of resource blocks, candidate starting resources, and repetition times, namely 3×4+1×4=16=2 ⁴ , so, in the control information You can use 4bit to represent the above 16 combinations.

For another example, in a case where there are 6 types of candidate resource block indexes associated with the number of resource blocks 1 and 2 index types of candidate resource blocks associated with the number of resource blocks 2, if the first set of repetition times includes 4 repetitions For the number of times, there are a total of 32 combinations of the number of resource blocks, candidate starting resources and the number of repetitions, that is, 6×4+2×4=32=2 ^{5. In} this way, ⁵ bits can be used in the control information to represent the above 32 combinations.

Generally, the starting resource block used by the first communication device can be directly selected from the candidate starting resource blocks associated with the set of the number of resource blocks, that is, for each number of resource blocks, the available candidates start The number of starting resource blocks is fixed. In order to improve the flexibility of the method for allocating starting resource blocks, an embodiment of the present application also provides a method for determining starting resource blocks.

That is, the method shown in FIG. 2 or FIG. 3 above further includes that the first communication device receives offset information sent by the second communication device, where the offset information is used to indicate the offset of the starting resource block. Correspondingly, the first communication device can determine the start resource block occupied by the data channel according to the start resource block allocated for the first communication device and the offset of the start resource block, that is, the first communication device finally transmits The initial resource block occupied by the data channel.

According to the foregoing start resource block allocated for the first communication device and the offset of the foregoing start resource block, there are many implementation ways to determine the start resource block occupied by the data channel, which is not limited in the embodiment of the application. . For example, the index of the starting resource block occupied by the data channel is represented by X, the index of the starting resource block allocated for the first communication device is represented by Y, and the offset of the starting resource block is represented by f, then the data channel occupied The index of the starting resource block X=Y+f. Or, the index X of the starting resource block occupied by the data channel=(Y+f)mod T, where T is a predetermined integer.

Optionally, T is the number of resource blocks included in a narrowband (or BWP).

Optionally, the above offset information may be carried in higher layer signaling or the above control information.

It should be understood that if the second communication device is not configured to send the offset information to the first communication device, the first communication device uses the aforementioned initial resource block allocated for the first communication device as the initial resource block occupied by the transmission data channel.

Optionally, the above-mentioned solution for indicating the allocation of resource blocks (including the starting resource block and the number of resource blocks) and the number of repetitions from 3 bits to 5 bits in the occupied control information can be applied to terminal equipment supporting CEModeB in the prior art. At present, for terminal devices supporting CEModeB, it is necessary to occupy 5 to 6 bits in the control information to indicate the allocation of resource blocks in the narrowband and the number of repetitions, which is beneficial to reduce the number of bits indicating the allocation of resource blocks and the number of repetitions in the control information .

Optionally, the above need to occupy 4bit to 5bit in the control information to indicate the allocation of resource blocks (including the starting resource block and the number of resource blocks) and the number of repetitions can be applied to terminal devices supporting CEModeA in the prior art. Currently, for terminal devices supporting CEModeA, 7 bits in the control information need to be occupied to indicate the allocation and repetition times of resource blocks in the narrowband, which is beneficial to reduce the number of bits in the control information indicating the allocation and repetition times of resource blocks.

The communication method of the embodiment of the present application is described in detail above with reference to FIGS. 1 to 3, and the communication device of the embodiment of the present application is described in detail above with reference to FIGS. 4 to 9. It should be understood that the communication device shown in FIG. 4 to FIG. 9 can implement one or more steps in the method flow shown in FIG. 1 to FIG. 3. In order to avoid repetition, I will not repeat them in detail here.

Fig. 4 is a schematic diagram of a communication device according to an embodiment of the present application. The first communication device 400 shown in FIG. 4 includes: a receiving module 410 and a sending module 420.

410. A receiving module, configured to receive control information, where the control information indicates the number of resource blocks allocated to the first communication device L and the number of repetitions N;

420. A sending module, configured to send a data channel to the second communication device according to the number of resource blocks L and the number of repetitions N, where the number of resource blocks L belongs to the number of resource block sets. A first set of the number of resource blocks, each set of the number of resource blocks in the plurality of sets of resource block numbers is associated with a set of repetitions, the number of repetitions N belongs to the first set of repetitions, and the first number of repetitions The set is a set of repetition times associated with the first set of resource block numbers.

Optionally, as an embodiment, the apparatus further includes: a processing module, configured to determine a starting resource block allocated for the first communication device according to the control information; and the sending module, further configured to: The number of resource blocks L, the number of repetitions N, and the starting resource block send a data channel to the second communication device.

Optionally, as an embodiment, different sets of the number of resource blocks in the plurality of sets of the number of resource blocks have different sets of associated repetition times.

Optionally, as an embodiment, the number of repetitions N is the number of repetitions for transmitting the control information and/or the number of repetitions for transmitting the data channel.

Optionally, as an embodiment, the multiple resource block number sets further include a second resource block number set, and the second resource block number set is associated with a second set of repetition times;

The smallest number of resource blocks in the second set of resource block numbers is greater than the largest number of resource blocks in the first set of resource block numbers, and the number of repetitions in the second set of repetitions Less than the number of repetition times in the first set of repetition times; or,

The smallest number of resource blocks in the first set of resource block numbers is greater than the largest number of resource blocks in the second set of resource block numbers, and the number of repetitions in the first set of repetitions Less than the number of repetitions in the second set of repetitions; or,

The smallest number of resource blocks in the second set of resource block numbers is greater than the largest number of resource blocks in the first set of resource block numbers, and the number of repetitions in the second set of repetitions Not more than the number of repetition times in the first set of repetition times; or,

The smallest number of resource blocks in the first set of resource block numbers is greater than the largest number of resource blocks in the second set of resource block numbers, and the number of repetitions in the first set of repetitions No more than the number of repetition times in the second set of repetition times.

Optionally, as an embodiment, the multiple resource block number sets include a third resource block number set {c, d}, and the first resource block number set is {a}, and the The second set of resource block numbers is {b}, the first set of repetition times includes 4 repetition times, the second set of repetition times includes 2 repetition times, and the third resource block number set is associated with The set of three repetitions contains 1 repetition; or,

The first resource block number set is {a, b}, the second resource block number set is {c, d}, and the set of repetition times associated with the first resource block number set includes 3 types The number of repetitions, the second set of repetition times includes two repetition times; or

The first set of resource block numbers is {a}, the second set of resource block numbers is {b, c, d}, the first set of repetitions includes 4 repetitions, and the second repetition The frequency set contains 2 repetition times; or,

The first set of resource block numbers is {e}, the second set of resource block numbers is {f}, the first set of repetitions includes 8 repetitions, and the second set of repetitions includes 4 Kinds of repetitions,

Wherein, a, b, c, d representing the number of different resource blocks are positive integers, and a<b<c<d, e representing the number of different resource blocks, f is a positive integer, and e<f.

Optionally, as an embodiment, the first resource block number set is {a}, the second resource block number set is {b}, and the third resource block number set is {c, d};

Each resource block number in the first resource block number set is associated with two candidate start resource blocks, and each resource block number in the second resource block number set is associated with three candidate start resources Block, each resource block number in the third resource block number set is associated with one candidate starting resource block; or,

Each resource block number in the first resource block number set is associated with three candidate start resource blocks, and each resource block number in the second resource block number set is associated with one candidate start resource Block, each resource block number in the third resource block number set is associated with one candidate starting resource block.

Optionally, as an embodiment, the first resource block number set is {a, b}, and the second resource block number set is {c, d};

Each resource block number in the first resource block number set is associated with two candidate start resource blocks, and each resource block number in the second resource block number set is associated with one candidate start resource Piece.

Optionally, as an embodiment, the first resource block number set is {a}, and the second resource block number set is {b, c, d};

The number a of resource blocks in the first resource block number set is associated with two candidate start resource blocks, and the resource block number b in the second resource block number set is associated with two candidate start resource blocks, The number c of resource blocks in the second resource block number set is associated with one candidate start resource block, and the number d of resource blocks in the second resource block number set is associated with one candidate start resource block.

Optionally, as an embodiment, the first resource block number set is {a}, and the second resource block number set is {b};

The number a of resource blocks in the first resource block number set is associated with three candidate start resource blocks, and the resource block number b in the first resource block number set is associated with two candidate start resource blocks.

Optionally, as an embodiment, the first set of the number of resource blocks is {a, b, c, d}, where a, b, c, and d representing the number of different resource blocks are positive integers, And a<b<c<d;

The number a of resource blocks is associated with 3 candidate starting resource blocks; and/or,

The number b of resource blocks is associated with two candidate starting resource blocks; and/or,

The number c of resource blocks is associated with two candidate starting resource blocks; and/or,

The number d of resource blocks is associated with one candidate starting resource block.

The number b of resource blocks is associated with 3 candidate starting resource blocks; and/or,

The number c of resource blocks is associated with 1 candidate starting resource block; and/or,

Optionally, as an embodiment, the first set of the number of resource blocks is {a, b}, where a and b representing the number of different resource blocks are positive integers, and a<b;

The number a of resource blocks is associated with 3 candidate start resource blocks, and the number of resource blocks b is associated with 1 candidate start resource block; or,

The number a of resource blocks is associated with 6 candidate start resource blocks, and the number of resource blocks b is associated with 2 candidate start resource blocks.

Optionally, as an embodiment, a=1, b=2; or, a=1, b=2, c=4, d=6; or, a=1, b=2, c=3, d = 4.

Fig. 5 is a schematic diagram of a communication device according to an embodiment of the present application. The first communication device 500 shown in FIG. 5 includes: a receiving module 510 and a sending module 520.

The receiving module 510 is configured to receive control information sent by the second communication device, where the control information indicates at least one of the initial resource block allocated, the number of allocated resource blocks L, and the number of repetitions N by the first communication device One kind

The sending module 520 is configured to send a data channel to the second communication device according to the control information, where the number of resource blocks L is indicated from a first resource block number set, and the number of first resource blocks The set includes one or more resource blocks; and/or the starting resource block is selected from a first starting resource block set, and the first starting resource block set includes one or more starting resource blocks; and /Or the repetition number N belongs to a first repetition number set, and the first repetition number set includes one or more repetition times.

Optionally, as an embodiment, the first set of the number of resource blocks is {a, b, c, d}, where a, b, c, and d representing the number of different resource blocks are positive integers, And a<b<c<d,

The number of start resource blocks in the first start resource block set associated with the number of resource blocks a is 3; and/or,

The number of start resource blocks in the first start resource block set associated with the number of resource blocks b is 2; and/or,

The number of start resource blocks in the first start resource block set associated with the number of resource blocks c is 2; and/or,

The number of start resource blocks in the first start resource block set associated with the number of resource blocks d is 1.

The number of start resource blocks in the first start resource block set associated with the number of resource blocks b is 3; and/or,

The number of start resource blocks in the first start resource block set associated with the number of resource blocks c is 1; and/or,

Optionally, as an embodiment, the first set of the number of resource blocks is {a, b}, where a and b representing the number of different resource blocks are positive integers, and a<b,

The number of start resource blocks in the first start resource block set associated with the number of resource blocks a is 3, and the start resource in the first start resource block set associated with the number of resource blocks b The number of blocks is 1; or,

The number of start resource blocks in the first start resource block set associated with the number a of resource blocks is 6, and the number of start resource blocks in the first start resource block set associated with the first resource block number b The number of initial resource blocks is 2.

In an alternative embodiment, the receiving module 410 and the sending module 420 may be the transceiver 640 of the communication device 600, and the processing module may be the processor 620 of the communication device 600. The communication device 600 may further include an input/output interface 630 and a memory 610, as shown in FIG. 6 specifically.

Fig. 6 is a schematic block diagram of a communication device according to another embodiment of the present application. The first communication device 600 shown in FIG. 6 may include: a memory 610, a processor 620, an input/output interface 630, and a transceiver 640. The memory 610, the processor 620, the input/output interface 630, and the transceiver 640 are connected through an internal connection path. The memory 610 is used to store instructions, and the processor 620 is used to execute the instructions stored in the memory 620 to control input/output. The output interface 630 receives input data and information, outputs data such as operation results, and controls the transceiver 640 to send signals.

In the implementation process, the steps of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 620 or instructions in the form of software. The method disclosed in combination with the embodiments of the present application may be directly embodied as being executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory 610, and the processor 620 reads information in the memory 610, and completes the steps of the foregoing method in combination with its hardware. To avoid repetition, it will not be described in detail here.

Fig. 7 is a schematic diagram of a communication device according to an embodiment of the present application. The second communication device 700 shown in FIG. 7 includes a processing module 710 and a sending module 720.

The processing module 710 is configured to determine the number L of resource blocks for the first communication device from a first resource block number set in a plurality of resource block number sets, and each resource in the plurality of resource block number sets The block number set is associated with a repetition number set;

A processing module 710, configured to determine the number of repetitions N for the first communication device from a first set of repetition times, where the first set of repetition times is a set of repetition times associated with the first resource block number set;

The sending module 720 is configured to send control information to the first communication device, where the control information indicates the number L of resource blocks and the number of repetitions N.

Optionally, as an embodiment, the control information further indicates a starting resource block allocated for the first communication device, and the apparatus further includes:

The second communication device determines the start resource block from candidate start resource blocks.

Each resource block number in the first resource block number set is associated with two of the candidate starting resource blocks, and each resource block number in the second resource block number set is associated with three of the A candidate start resource block, each resource block number in the third resource block number set is associated with one candidate start resource block; or,

Each resource block number in the first resource block number set is associated with three candidate starting resource blocks, and each resource block number in the second resource block number set is associated with one A candidate start resource block, each resource block number in the third resource block number set is associated with one candidate start resource block.

Each resource block number in the first resource block number set is associated with two candidate start resource blocks, and each resource block number in the second resource block number set is associated with one Candidate starting resource block.

The number a of resource blocks in the first resource block number set is associated with two of the candidate starting resource blocks, and the resource block number b in the second resource block number set is associated with two of the candidates An initial resource block, the number c of resource blocks in the second resource block number set is associated with one candidate start resource block, and the number d of resource blocks in the second resource block number set is associated with one The candidate starting resource block.

The number a of resource blocks in the first resource block number set is associated with three of the candidate starting resource blocks, and the number of resource blocks b in the first resource block number set is associated with two of the candidates Start resource block.

The number a of the resource blocks is associated with three of the candidate starting resource blocks; and/or,

The number b of resource blocks is associated with two of the candidate start resource blocks; and/or,

The number c of resource blocks is associated with two of the candidate starting resource blocks; and/or,

The number of resource blocks a, the number of resource blocks b, the number of resource blocks c, and the number of resource blocks d can be understood as the number of resource blocks L is a, the number of resource blocks L is b, and the number of resource blocks L is c, the number of resource blocks L is d.

The number c of resource blocks is associated with one candidate starting resource block; and/or,

The number a of resource blocks is associated with three of the candidate start resource blocks, and the number of resource blocks b is associated with one of the candidate start resource blocks; or,

FIG. 8 is a schematic diagram of a communication device according to an embodiment of the present application. The second communication device 800 shown in FIG. 8 includes a processing module 810 and a sending module 820.

810: Determine for the first communication device at least one of a starting resource block, the number of resource blocks L, and the number of repetitions N;

820. Send control information to the first communication device, where the control information indicates at least one of the starting resource block, the number of allocated resource blocks L, and the number of repetitions N, where the The number L of resource blocks is indicated from a first resource block number set, and the first resource block number set includes one or more resource block numbers; and/or the starting resource block is the first starting resource block Selected from the resource block set, the first starting resource block set includes one or more candidate starting resource blocks; and/or the number of repetitions N belongs to a first set of repetitions, and the first set of repetitions includes one Or multiple repetitions.

In an optional embodiment, the foregoing processing module 710 may be the processor 920 of the second communication device 900. The aforementioned sending module 720 may be the transceiver 940 of the second communication device 900, and the second communication device 900 may also include an input/output interface 930 and a memory 910, as shown in FIG. 9 in detail.

In an optional embodiment, the aforementioned processing module 810 may be the processor 920 of the second communication device 900. The aforementioned sending module 820 may be the transceiver 940 of the second communication device 900, and the second communication device 900 may further include an input/output interface 930 and a memory 910, as shown in FIG. 9 in detail.

FIG. 9 is a schematic block diagram of a communication device according to another embodiment of the present application. The second communication device 900 shown in FIG. 9 may include: a memory 910, a processor 920, an input/output interface 930, and a transceiver 940. Among them, the memory 910, the processor 920, the input/output interface 930, and the transceiver 940 are connected through an internal connection path. The memory 910 is used to store instructions, and the processor 920 is used to execute the instructions stored in the memory 920 to control input/output. The output interface 930 receives input data and information, outputs data such as operation results, and controls the transceiver 940 to send signals.

In the implementation process, the steps of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 920 or instructions in the form of software. The method disclosed in combination with the embodiments of the present application may be directly embodied as being executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory 910, and the processor 920 reads information in the memory 910, and completes the steps of the foregoing method in combination with its hardware. To avoid repetition, it will not be described in detail here.

It should be understood that, in this embodiment of the application, the processor may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), and dedicated integrated Circuit (application specific integrated circuit, ASIC), ready-made programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.

It should be understood that, in the embodiments of the present application, the transceiver is also called a communication interface, and a transceiver device such as but not limited to a transceiver is used to implement communication between a communication device (for example, a terminal device or a network device) and other devices or communication networks. Communication.

It should also be understood that, in the embodiments of the present application, the memory may include a read-only memory and a random access memory, and provide instructions and data to the processor. Part of the processor may also include non-volatile random access memory. For example, the processor may also store device type information. A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in combination 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 constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of 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 system, device, and method 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, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and 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 they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

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

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology 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, including Several instructions are used 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 application. The aforementioned storage media include: 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 media that can store program code .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A communication method, characterized in that it comprises:

The first communication device receives control information, where the control information indicates the number L of resource blocks allocated to the first communication device and the number of repetitions N;

The first communication device sends a data channel to the second communication device according to the number of resource blocks L and the number of repetitions N,

Wherein, the number of resource blocks L belongs to a first resource block number set in a plurality of resource block number sets, and each resource block number set in the plurality of resource block number sets is associated with a set of repetition times ,

The repetition number N belongs to a first repetition number set, and the first repetition number set is a repetition number set associated with the first resource block number set.
The method of claim 1, wherein the method further comprises:

Determining, by the first communication device, a starting resource block allocated for the first communication device according to the control information;

The first communication device sending a data channel to the second communication device according to the number L of resource blocks and the number of repetitions N includes:

The first communication device sends a data channel to the second communication device according to the number of resource blocks L, the number of repetitions N, and the starting resource block.
The method according to claim 2, wherein:

Different resource block number sets in the multiple resource block number sets are associated with different sets of repetition times.
The method according to claim 2 or 3, wherein:

The number of repetitions N is the number of repetitions for transmitting the control information and/or the number of repetitions for transmitting the data channel.
The method according to any one of claims 2-4, characterized in that,

The plurality of resource block number sets further include a second resource block number set, and the second resource block number set is associated with a second set of repetition times;

The smallest number of resource blocks in the second set of resource block numbers is greater than the largest number of resource blocks in the first set of resource block numbers, and the number of repetitions in the second set of repetitions Less than the number of repetition times in the first set of repetition times; or,

The smallest number of resource blocks in the first set of resource block numbers is greater than the largest number of resource blocks in the second set of resource block numbers, and the number of repetitions in the first set of repetitions Less than the number of repetitions in the second set of repetitions; or,

The smallest number of resource blocks in the second set of resource block numbers is greater than the largest number of resource blocks in the first set of resource block numbers, and the number of repetitions in the second set of repetitions Not more than the number of repetition times in the first set of repetition times; or,

The smallest number of resource blocks in the first set of resource block numbers is greater than the largest number of resource blocks in the second set of resource block numbers, and the number of repetitions in the first set of repetitions No more than the number of repetition times in the second set of repetition times.
The method of claim 5, wherein:

The plurality of resource block number sets include a third resource block number set {c, d}, and the first resource block number set is {a}, and the second resource block number set is {b }, the first set of repetition times includes 4 repetition times, the second set of repetition times includes 2 repetition times, and the third set of repetition times associated with the third resource block number set includes 1 repetition times ;or,

The first resource block number set is {a, b}, the second resource block number set is {c, d}, and the set of repetition times associated with the first resource block number set includes 3 types The number of repetitions, the second set of repetition times includes two repetition times; or

The first set of resource block numbers is {a}, the second set of resource block numbers is {b, c, d}, the first set of repetitions includes 4 repetitions, and the second repetition The frequency set contains 2 repetition times; or,

The first set of resource block numbers is {e}, the second set of resource block numbers is {f}, the first set of repetitions includes 8 repetitions, and the second set of repetitions includes 4 Kinds of repetitions,

Wherein, a, b, c, d representing the number of different resource blocks are positive integers, and a<b<c<d, e representing the number of different resource blocks, f is a positive integer, and e<f.
The method according to claim 6, wherein:

The first resource block number set is {a}, the second resource block number set is {b}, and the third resource block number set is {c, d};

Each resource block number in the first resource block number set is associated with two candidate start resource blocks, and each resource block number in the second resource block number set is associated with three candidate start resources Block, each resource block number in the third resource block number set is associated with one candidate starting resource block; or,

Each resource block number in the first resource block number set is associated with three candidate start resource blocks, and each resource block number in the second resource block number set is associated with one candidate start resource Block, each resource block number in the third resource block number set is associated with one candidate starting resource block.
The method according to claim 6, wherein:

The first resource block number set is {a, b}, and the second resource block number set is {c, d};

Each resource block number in the first resource block number set is associated with two candidate start resource blocks, and each resource block number in the second resource block number set is associated with one candidate start resource Piece.
The method according to claim 6, wherein:

The first resource block number set is {a}, and the second resource block number set is {b, c, d};

The number a of resource blocks in the first resource block number set is associated with two candidate start resource blocks, and the resource block number b in the second resource block number set is associated with two candidate start resource blocks, The number c of resource blocks in the second resource block number set is associated with one candidate start resource block, and the number d of resource blocks in the second resource block number set is associated with one candidate start resource block.
The method according to claim 6, wherein:

The first resource block number set is {a}, and the second resource block number set is {b};

The number a of resource blocks in the first resource block number set is associated with three candidate start resource blocks, and the resource block number b in the first resource block number set is associated with two candidate start resource blocks.
The method according to any one of claims 2-5, wherein:

The first set of the number of resource blocks is {a, b, c, d}, where a, b, c, d representing the number of different resource blocks are positive integers, and a<b<c<d;

The number a of resource blocks is associated with 3 candidate starting resource blocks; and/or,

The number b of resource blocks is associated with two candidate starting resource blocks; and/or,

The number c of resource blocks is associated with two candidate starting resource blocks; and/or,

The number d of resource blocks is associated with one candidate starting resource block.
The method according to any one of claims 2-5, wherein:

The first set of the number of resource blocks is {a, b, c, d}, where a, b, c, d representing the number of different resource blocks are positive integers, and a<b<c<d;

The number a of resource blocks is associated with 3 candidate starting resource blocks; and/or,

The number b of resource blocks is associated with 3 candidate starting resource blocks; and/or,

The number c of resource blocks is associated with 1 candidate starting resource block; and/or,

The number d of resource blocks is associated with one candidate starting resource block.
The method according to any one of claims 2-5, wherein:

The first set of the number of resource blocks is {a, b}, where a and b representing the number of different resource blocks are positive integers, and a<b;

The number a of resource blocks is associated with 3 candidate start resource blocks, and the number of resource blocks b is associated with 1 candidate start resource block; or,

The number a of resource blocks is associated with 6 candidate start resource blocks, and the number of resource blocks b is associated with 2 candidate start resource blocks.
The method according to any one of claims 6-12, wherein:

a=1, b=2; or,

a=1, b=2, c=4, d=6; or,

a=1, b=2, c=3, d=4.
A communication method, characterized in that it comprises:

The second communication device determines the number of resource blocks L for the first communication device from the first resource block number set in the plurality of resource block number sets, and each resource block in the plurality of resource block number sets The number set is associated with a set of repetition times;

Determining, by the second communication device, the number of repetitions N for the first communication device from a first set of repetition times, where the first set of repetition times is a set of repetition times associated with the first resource block number set;

The second communication device sends control information to the first communication device, where the control information indicates the number L of resource blocks and the number of repetitions N.
The method according to claim 15, wherein the control information further indicates a starting resource block allocated for the first communication device, and the method further comprises:

The second communication device determines the start resource block from candidate start resource blocks.
The method of claim 16, wherein:

Different resource block number sets in the multiple resource block number sets are associated with different sets of repetition times.
The method according to claim 15 or 16, characterized in that:

The number of repetitions N is the number of repetitions for transmitting the control information and/or the number of repetitions for transmitting the data channel.
The method according to any one of claims 16-18, wherein:

The plurality of resource block number sets further include a second resource block number set, and the second resource block number set is associated with a second set of repetition times;

The smallest number of resource blocks in the second set of resource block numbers is greater than the largest number of resource blocks in the first set of resource block numbers, and the number of repetitions in the second set of repetitions Less than the number of repetition times in the first set of repetition times; or,

The smallest number of resource blocks in the first set of resource block numbers is greater than the largest number of resource blocks in the second set of resource block numbers, and the number of repetitions in the first set of repetitions Less than the number of repetitions in the second set of repetitions; or,

The smallest number of resource blocks in the second set of resource block numbers is greater than the largest number of resource blocks in the first set of resource block numbers, and the number of repetitions in the second set of repetitions Not more than the number of repetition times in the first set of repetition times; or,

The smallest number of resource blocks in the first set of resource block numbers is greater than the largest number of resource blocks in the second set of resource block numbers, and the number of repetitions in the first set of repetitions No more than the number of repetition times in the second set of repetition times.
The method of claim 19, wherein:

The plurality of resource block number sets include a third resource block number set {c, d}, and the first resource block number set is {a}, and the second resource block number set is {b }, the first set of repetition times includes 4 repetition times, the second set of repetition times includes 2 repetition times, and the third set of repetition times associated with the third resource block number set includes 1 repetition times ;or,

The first resource block number set is {a, b}, the second resource block number set is {c, d}, and the set of repetition times associated with the first resource block number set includes 3 types The number of repetitions, the second set of repetition times includes two repetition times; or

The first set of resource block numbers is {a}, the second set of resource block numbers is {b, c, d}, the first set of repetitions includes 4 repetitions, and the second repetition The frequency set contains 2 repetition times; or,

The first set of resource block numbers is {e}, the second set of resource block numbers is {f}, the first set of repetitions includes 8 repetitions, and the second set of repetitions includes 4 Kinds of repetitions,

Wherein, a, b, c, d representing the number of different resource blocks are positive integers, and a<b<c<d, e representing the number of different resource blocks, f is a positive integer, and e<f.
The method of claim 20, wherein:

The first resource block number set is {a}, the second resource block number set is {b}, and the third resource block number set is {c, d};

Each resource block number in the first resource block number set is associated with two of the candidate starting resource blocks, and each resource block number in the second resource block number set is associated with three of the A candidate start resource block, each resource block number in the third resource block number set is associated with one candidate start resource block; or,

Each resource block number in the first resource block number set is associated with three candidate starting resource blocks, and each resource block number in the second resource block number set is associated with one A candidate start resource block, each resource block number in the third resource block number set is associated with one candidate start resource block.
The method of claim 20, wherein:

The first resource block number set is {a, b}, and the second resource block number set is {c, d};

Each resource block number in the first resource block number set is associated with two candidate start resource blocks, and each resource block number in the second resource block number set is associated with one Candidate starting resource block.
The method of claim 20, wherein:

The first resource block number set is {a}, and the second resource block number set is {b, c, d};

The number a of resource blocks in the first resource block number set is associated with two of the candidate starting resource blocks, and the resource block number b in the second resource block number set is associated with two of the candidates An initial resource block, the number c of resource blocks in the second resource block number set is associated with one candidate start resource block, and the number d of resource blocks in the second resource block number set is associated with one The candidate starting resource block.
The method of claim 20, wherein:

The first resource block number set is {a}, and the second resource block number set is {b};

The number a of resource blocks in the first resource block number set is associated with three of the candidate starting resource blocks, and the number of resource blocks b in the first resource block number set is associated with two of the candidates Start resource block.
The method according to any one of claims 16-19, wherein:

The first set of the number of resource blocks is {a, b, c, d}, where a, b, c, d representing the number of different resource blocks are positive integers, and a<b<c<d;

The number a of the resource blocks is associated with three of the candidate starting resource blocks; and/or,

The number b of resource blocks is associated with two of the candidate start resource blocks; and/or,

The number c of resource blocks is associated with two of the candidate starting resource blocks; and/or,

The number d of resource blocks is associated with one candidate starting resource block.
The method according to any one of claims 16-19, wherein:

The first set of the number of resource blocks is {a, b, c, d}, where a, b, c, d representing the number of different resource blocks are positive integers, and a<b<c<d;

The number a of the resource blocks is associated with three of the candidate starting resource blocks; and/or,

The number b of resource blocks is associated with 3 candidate starting resource blocks; and/or,

The number c of resource blocks is associated with one candidate starting resource block; and/or,

The number d of resource blocks is associated with one candidate starting resource block.
The method according to any one of claims 16-19, wherein:

The first set of the number of resource blocks is {a, b}, where a and b representing the number of different resource blocks are positive integers, and a<b;

The number a of resource blocks is associated with three of the candidate start resource blocks, and the number of resource blocks b is associated with one of the candidate start resource blocks; or,

The number a of resource blocks is associated with 6 candidate start resource blocks, and the number of resource blocks b is associated with 2 candidate start resource blocks.
The method according to any one of claims 20-29, wherein:

a=1, b=2; or,

a=1, b=2, c=4, d=6; or,

a=1, b=2, c=3, d=4.
A communication device, characterized by comprising a receiving module and a processing module, to execute the method according to any one of claims 1-14.
A communication device, characterized by comprising a processing module and a sending module, to execute the method according to any one of claims 15-28.
A communication device, characterized by comprising a receiving module and a processing module, to execute the method according to any one of claims 1-14.
A communication device, characterized by comprising a processing module and a sending module, to execute the method according to any one of claims 15-28.