WO2018202000A1

WO2018202000A1 - Control channel transmission method, terminal device and network device

Info

Publication number: WO2018202000A1
Application number: PCT/CN2018/085050
Authority: WO
Inventors: 薛丽霞; 张永平; 陈铮
Original assignee: 华为技术有限公司
Priority date: 2017-05-04
Filing date: 2018-04-28
Publication date: 2018-11-08
Also published as: CN108811108B; CN108811108A

Abstract

Provided in the present application are a control channel transmission method, a terminal device and a network device, the method comprising: a network device determining a control resource set; a control resource set being a time-frequency resource set of a downlink transmission resource permitted to send a control channel, a size of the control resource set being N times M, N being a number of control channel basic units comprised by a control channel element; N and M both being positive integers greater than or equal to 1; the network device transmitting on the control resource set control information carried on a control channel to a terminal device. The control channel transmission method, terminal device and network device provided in the present application can, by means of a configured control resource set, enable a network device to transmit on a control resource set control information carried on a control channel to a terminal device, so as to enable the terminal device to blind detect control information only on a control resource set, increasing effectiveness of the terminal device blind detecting control information.

Description

Control channel transmission method, terminal device and network device

This application claims the priority of the Chinese Patent Application filed on May 4, 2017, the Chinese Patent Office, the application number is 201710309847.1, and the application name is "the transmission method of the control channel, the terminal device and the network device", the entire contents of which are incorporated by reference. In this application.

Technical field

The present application relates to communications technologies, and in particular, to a method, a terminal device, and a network device for transmitting a control channel.

Background technique

In the New Radio (NR) standard of the 5G communication system, downlink transmission resources are divided into a control area and a data area. The control area is used to transmit a control channel, and the data area is used to transmit a data channel. The control information carried by the control channel includes a resource block (RB) used to indicate that the data channel is used in the frequency domain of the data area, and the data channel is used to carry downlink data or uplink data.

In order to improve the efficiency of the terminal device blind detection control channel, the NR standard proposes the concept of a control resource set. That is, one or more control resource sets are divided for each terminal device in the control region. The base station may send a control channel to the terminal device on any control resource set corresponding to the terminal device.

Therefore, how to determine the control resource set for transmitting the control channel in the control region of the downlink transmission resource is an urgent problem to be solved.

Summary of the invention

The present application provides a method for transmitting a control channel, a terminal device, and a network device, which are used to solve the problem that a base station determines a control resource set for transmitting a control channel.

In a first aspect, the application provides a method for transmitting a control channel, where the method includes:

The network device determines a control resource set, where the control resource set is a time-frequency resource set on the downlink transmission resource that is allowed to send a control channel, where the size of the control resource set is M times N, and the N is a control channel element The number of control channel basic units included; wherein N and the M are positive integers greater than or equal to 1;

The network device sends control information carried on the control channel to the terminal device on the control resource set.

The method for transmitting a control channel provided by the first aspect, by setting a control resource set, enables the network device to send control information carried on the control channel to the terminal device on the control resource set, so that the terminal device can only be in the The control information transmitted by the blind detection on the control resource set improves the efficiency of the blind device control channel of the terminal device.

In a possible design, the starting point position of the control resource set in the frequency domain is a multiple of the N.

In one possible design, the M is a multiple of a minimum of the aggregation level of all control channels transmitted on the set of control resources.

In a possible design, the network device sends the control information carried on the control channel to the terminal device on the control resource set, including:

The network device selects, according to a resource mapping manner of the control channel, a control channel basic unit that maps the control channel, where the control channel uses at least one control channel element on the control resource set. Performing transmission, each of the control channel elements including at least one control channel basic unit;

The network device sends the control information to the terminal device on a control channel basic unit that maps the control channel.

In a possible design, the network device selects, according to the resource mapping manner of the control channel, a control channel basic unit that maps the control channel in the control resource set, including:

When the resource mapping mode of the control channel is the continuous resource mapping mode, the network device selects the width of the two control channel elements adjacent to each mapping sequence in the frequency domain, and selects the control resource set. Mapping a control channel basic unit of the control channel;

The width of the two control channel elements adjacent to each other in the mapping sequence is: a multiple of a width occupied by the control channel element in the frequency domain, or a control of the control channel element in the frequency domain. The multiple of the width occupied by the channel base unit binding.

Through the transmission method of the control channel provided by the possible design, by setting the resource mapping manner of the two CCEs in the mapping order in the frequency domain, the network device can adopt the flexible and diverse CCE to REG resource mapping manner, and control Resource mapping on the control channel is performed on the resource set and sent to the terminal device. On the basis of maintaining the flexibility of the CCE to REG resource mapping manner, the number of blind detection of the terminal device is reduced by reducing the position of the resource mapping, thereby reducing the terminal. The complexity of blind detection of equipment.

In one possible design, any two control channel elements adjacent to each other in the mapping order have different widths in the frequency domain.

The method for transmitting the control channel provided by the possible design enables the network device to adopt a flexible CCE to REG resource mapping manner, and the method for resource mapping of the control channel on the control resource set is also more flexible and diverse.

In a possible design, the network device selects, according to a resource mapping manner of the control channel, a control channel basic unit that maps the control channel in the control resource set, including:

When the resource mapping mode of the control channel is the distributed resource mapping mode, the network device is bound according to the width of the interval between the two control channel basic units adjacent to each mapping channel element on the frequency domain. Selecting, in the set of control resources, a control channel basic unit that maps the control channel;

The control unit basic unit binding includes at least one control channel basic unit continuously mapped in the frequency domain; and the two control channel basic units adjacent to the mapping order on the control channel element are bound in the frequency domain. Width: a multiple of the width of the control channel element occupied in the frequency domain, or a multiple of the width of the control channel element occupied by a control channel base unit in the frequency domain.

The method of transmitting the control channel provided by the possible design, by setting the resource mapping manner of the two REG bundlings adjacent to the mapping order on the same CCE in the frequency domain, enables the network device to adopt flexible and diverse CCE to REG resources. In the mapping mode, resource mapping is performed on the control channel on the control resource set, and is sent to the terminal device. On the basis of maintaining the flexibility of the CCE to REG resource mapping manner, the blind detection of the terminal device is reduced by reducing the position of the resource mapping. The number of times, thereby reducing the complexity of blind detection of terminal equipment. In a possible design, two control channel basic units adjacent to any two mapping orders on the control channel element are bound, and the widths of the intervals in the frequency domain are different.

In a second aspect, the application provides a method for transmitting a control channel, where the method includes:

The terminal device determines a control resource set, where the control resource set is a time-frequency resource set on the downlink transmission resource that is allowed to send a control channel, where the size of the control resource set is M times N, and the N is a control channel element. The number of control channel basic units included; wherein N and the M are positive integers greater than or equal to 1;

The terminal device blindly checks, on the control resource set, control information sent by the network device through the control channel.

In a possible design, the terminal device on the control resource set, and the control information sent by the network device through the control channel by the blind detection network device includes:

And the terminal device blindly detects, on the control resource set, control information sent by the network device by using the control channel according to the resource mapping manner of the control channel.

In a possible design, the terminal device blindly detects the control information sent by the network device by using the control channel on the control resource set according to the resource mapping manner of the control channel, including:

When the resource mapping mode of the control channel is the continuous resource mapping mode, the terminal device is blind on the control resource set according to the width of the two control channel elements adjacent to each mapping sequence in the frequency domain. Checking control information sent by the network device through the control channel;

When the resource mapping mode of the control channel is the distributed resource mapping mode, the terminal device binds the width of the interval between the two basic control channels adjacent to each other on the control channel element in the frequency domain. Controlling, by the control resource collection, control information sent by the network device through the control channel;

In a possible design, two control channels adjacent to any two mapping orders on the control channel element are bound by a basic unit, and the widths of the intervals in the frequency domain are different.

The beneficial effects of the above-mentioned first aspect and the possible design of the first aspect can be seen from the above-mentioned second aspect and the possible transmission of the control channel provided by the possible aspects. Let me repeat.

In a third aspect, the application provides a network device, where the network device includes:

a determining module, configured to determine a control resource set, where the control resource set is a time-frequency resource set that is allowed to send a control channel on a downlink transmission resource, where the size of the control resource set is M times N, and the N is one a number of control channel basic units included in the control channel element; wherein the N and the M are positive integers greater than or equal to 1;

And a sending module, configured to send, by the control device, control information carried on the control channel to the terminal device.

In a possible design, the sending module includes:

a selecting unit, configured to select, according to a resource mapping manner of the control channel, a control channel basic unit that maps the control channel, where the control channel uses at least one control channel on the control resource set Elements are transmitted, each of the control channel elements comprising at least one control channel base unit;

And a sending unit, configured to send the control information to the terminal device on a control channel basic unit that maps the control channel.

In a possible design, the selecting unit is specifically configured to: when the resource mapping manner of the control channel is a continuous resource mapping manner, the two control channel elements adjacent to each mapping order are in the frequency domain. Selecting, in the set of control resources, a control channel basic unit that maps the control channel;

In a possible design, the selecting unit is specifically configured to: when the resource mapping manner of the control channel is a distributed resource mapping manner, according to two control sequences adjacent to each mapping channel element The channel basic unit is bound to the width of the interval in the frequency domain, and the control channel basic unit that maps the control channel is selected in the control resource set;

In a possible design, two control channel basic units adjacent to any two mapping orders on the control channel element are bound, and the widths of the intervals in the frequency domain are different.

For the beneficial effects of the network devices provided by the foregoing third and third possible aspects, the beneficial effects of the first aspect and the possible designs of the first aspect may be referred to, and details are not described herein again.

In a fourth aspect, the application provides a terminal device, where the terminal device includes:

And a blind detection module, configured to blindly check, on the control resource set, control information sent by the network device by using the control channel.

In a possible design, the blind detection module is specifically configured to blindly check, on the control resource set, control information sent by the network device through the control channel according to a resource mapping manner of the control channel.

In a possible design, the blind detection module is specifically configured to: when the resource mapping manner of the control channel is a continuous resource mapping manner, two control channel elements adjacent to each mapping order are in the frequency domain. Width of the upper interval, blindly detecting, on the set of control resources, control information sent by the network device through the control channel;

In a possible design, the blind detection module is specifically configured to: when the resource mapping manner of the control channel is a distributed resource mapping manner, according to the mapping order of each of the control channel elements The control channel basic unit is bound to the width of the interval in the frequency domain, and the control information sent by the network device through the control channel is blindly detected on the control resource set;

For the beneficial effects of the terminal devices provided by the foregoing fourth and fourth possible aspects, the beneficial effects of the second aspect and the possible design of the second aspect may be referred to, and details are not described herein again.

In a fifth aspect, the application provides a network device, including: a processor, a memory, a receiver, and a transmitter; the receiver and the transmitter are both coupled to the processor, and the processor controls the receiving Receiving action of the device, the processor controlling a sending action of the transmitter;

Wherein the memory is for storing computer executable program code, the program code comprising instructions; when the processor executes the instructions, the instructions cause the network device to perform the method of transmitting the control channel as provided by the first aspect and the possible designs of the first aspect .

For the beneficial effects of the network device provided by the foregoing fifth aspect, reference may be made to the beneficial effects brought by the foregoing first aspect and the possible designs of the first aspect, and details are not described herein again.

In a sixth aspect, the application provides a terminal device, including: a processor, a memory, a receiver, and a transmitter; the receiver and the transmitter are both coupled to the processor, and the processor controls the receiving Receiving action of the device, the processor controlling a sending action of the transmitter;

Wherein the memory is for storing computer executable program code, the program code comprising instructions; when the processor executes the instructions, the instructions cause the terminal device to perform the control channel transmission method provided by the second aspect and the possible design of the second aspect .

For the beneficial effects of the terminal device provided by the foregoing sixth aspect, reference may be made to the beneficial effects brought by the foregoing second aspect and the possible design of the second aspect, and details are not described herein again.

A seventh aspect of the present application provides a network device comprising at least one processing element (or chip) for performing the method of the above first aspect.

An eighth aspect of the present application provides a terminal device comprising at least one processing element (or chip) for performing the method of the above second aspect.

A ninth aspect of the present application provides a program for performing the method of the above first aspect when executed by a processor.

A tenth aspect of the present application provides a program for performing the method of the above second aspect when executed by a processor.

An eleventh aspect of the present application provides a program product, such as a computer readable storage medium, comprising the program of the ninth aspect.

A twelfth aspect of the present application provides a program product, such as a computer readable storage medium, comprising the program of the tenth aspect.

A thirteenth aspect of the present application provides a computer readable storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method of the first aspect described above.

A fourteenth aspect of the present application provides a computer readable storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the method of the second aspect described above.

The method for transmitting a control channel, the terminal device, and the network device provided by the application, by setting a control resource set, enable the network device to send control information carried on the control channel to the terminal device on the control resource set, so that the terminal device The control information transmitted by the blind detection can be blindly detected only on the control resource set, thereby improving the efficiency of the terminal device blind detection control channel.

DRAWINGS

Figure 1 is a block diagram of a communication system according to the present application;

2 is a schematic diagram of a downlink system bandwidth;

3 is a schematic diagram of a downlink transmission resource;

4 is a signaling flowchart of a method for transmitting a control channel according to the present application;

Figure 5 is a schematic diagram of an REG;

6 is a signaling flowchart of another method for transmitting a control channel provided by the present application;

FIG. 7 is a schematic diagram of resource mapping of a control channel provided by the present application;

FIG. 8 is a schematic diagram of resource mapping of another control channel provided by the present application; FIG.

FIG. 9 is a schematic diagram of resource mapping of another control channel provided by the present application;

10 is a schematic diagram of resource mapping of another control channel provided by the present application;

FIG. 11 is a schematic diagram of resource mapping of another control channel provided by the present application;

12 is a schematic diagram of resource mapping of another control channel provided by the present application;

FIG. 13 is a schematic diagram of resource mapping of another control channel provided by the present application;

FIG. 14 is a schematic diagram of resource mapping of another control channel provided by the present application; FIG.

15 is a schematic diagram of resource mapping of another control channel provided by the present application;

16 is a schematic diagram of resource mapping of another control channel provided by the present application;

FIG. 17 is a schematic diagram of resource mapping of another control channel provided by the present application;

FIG. 18 is a schematic structural diagram of a network device according to the present application;

FIG. 19 is a schematic structural diagram of another network device according to the present application;

20 is a schematic structural diagram of a terminal device provided by the present application;

FIG. 21 is a schematic structural diagram of still another network device according to the present application;

FIG. 22 is a schematic structural diagram of another terminal device provided by the present application;

FIG. 23 is a structural block diagram of a terminal device provided by the application as a mobile phone.

detailed description

In the present application, "plurality" means two or more. "and/or", describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately. The character "/" generally indicates that the contextual object is an "or" relationship.

It should be understood that although the terms first and second may be used to describe the REG in this application, these REGs should not be limited to these terms. These terms are only used to distinguish REGs from each other. For example, the first REG may also be referred to as a second REG without departing from the scope of the embodiments of the present invention. Similarly, the second REG may also be referred to as a first REG.

1 is a block diagram of a communication system according to the present application. The method for transmitting the control channel provided by the present application is applicable to the communication system shown in FIG. 1 , and the communication system may be an LTE communication system or other communication systems in the future, which is not limited herein. As shown in FIG. 1, the communication system includes: a network device and a terminal device. The network device and the terminal device can communicate through one or more air interface technologies.

Network device: may be a base station, or an access point, or may refer to a device in the access network that communicates with the wireless terminal over one or more sectors over the air interface. The base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network. The base station can also coordinate attribute management of the air interface. For example, the base station may be a Global System of Mobile communication (GSM) or a Base Transceiver Station (BTS) in Code Division Multiple Access (CDMA), or may be a wideband code division multiple access ( The base station (NodeB, NB) in the Wideband Code Division Multiple Access (WCDMA) may also be an evolved base station (Evolutional Node B, eNB or eNodeB) in Long Term Evolution (LTE), or a relay station or an access point. , or a base station in a future 5G network, etc., is not limited herein.

Terminal device: may be a wireless terminal or a wired terminal, the wireless terminal may be a device that provides voice and/or other service data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem. . The wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal. For example, it may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with a wireless access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (Personal Digital Assistant, PDA) and other equipment. The wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, and a remote terminal. The access terminal, the user terminal (User Terminal), the user agent (User Agent), and the user device (User Device or User Equipment) are not limited herein.

Taking the 5G communication system as an example, in the NR standard of the 5G communication system, the downlink transmission resource is in the frequency domain from the entire downlink system bandwidth.

It is composed of a number of Orthogonal Frequency Division Multiplexing (OFDM) symbols (for example, 7 or 14 OFDM symbols) in the time domain. 2 is a schematic diagram of a downlink system bandwidth. as shown in picture 2,

The basic unit is Resource Block (RB). Each RB is composed of 12 consecutive subcarriers in the frequency domain and 6 or 7 OFDM symbols in the time domain. With continued reference to FIG. 2, each of the grids on the resource grid of the RB shown in FIG. 2 is referred to as a Resource Element (RE), and each RE includes one subcarrier within one OFDM symbol.

FIG. 3 is a schematic diagram of a downlink transmission resource. As shown in FIG. 3, in the present application, downlink transmission resources are divided into a control region and a data region in the time domain. That is to say, the control region and the data region are both in the frequency domain (Frequency) by the entire downlink system bandwidth.

Composition, but consists of different time domain symbols in the time domain. It should be noted that in all subsequent drawings, the time domain is represented by time, and the frequency domain is represented by frequency, and is not explained one by one.

The control area is used to transmit a control channel, and the data area is used to transmit a data channel. The control information carried by the control channel is used to indicate the frequency domain location of the RB used by the data channel in the data region (ie, resource allocation information of the data channel), and the data channel is used to carry downlink data or uplink data. The control channel referred to here may be, for example, a Physical Downlink Control Channel (PDCCH), and the control information carried by the control channel may be, for example, Downlink Control Information (DCI). The data channel referred to here may be, for example, a Physical Downlink Shared Channel (PDSCH).

In order to improve the efficiency of the terminal device blind detection control channel, the NR standard proposes the concept of a control resource set. That is, one or more control resource sets are divided for each terminal device in the control region. The network device may send a control channel to the terminal device on any control resource set corresponding to the terminal device. FIG. 3 shows a downlink transmission resource in which two control resource sets (control resource set1 and control resource set2) are allocated to the terminal device on the control region. As shown in FIG. 3, the network device may send a control channel to the terminal device on the control resource set1, or may send a control channel to the terminal device on the control resource set2.

The method for transmitting a control channel provided by the present application is to solve the technical problem of how a network device transmits a control channel. The technical solutions of the present application are described in detail below through some embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in some embodiments.

FIG. 4 is a signaling flowchart of a method for transmitting a control channel according to the present application. This embodiment relates to a process in which a network device transmits a control channel on a set of control resources. As shown in FIG. 4, the method may include:

S101. The network device determines a control resource set.

Specifically, the foregoing control resource set is a time-frequency resource set that allows a control channel to be transmitted on the downlink transmission resource. In the present application, the resources included in the control resource set are controlled by the basic unit of the control channel. The control channel basic unit mentioned herein may be, for example, a Resource Element Group (REG). That is to say, the control resource set is composed of a plurality of control channel basic units. However, those skilled in the art can understand that the basic unit of the above control channel is not limited thereto.

In the NR standard, the control channel is on the set of control resources and can be transmitted using one or more CCEs. In this embodiment, the number of control channel basic units included in one control channel element (CCE) is N, and the size of the control resource set may be M times N. Where N and M are positive integers greater than or equal to 1.

Exemplarily, it is assumed that the above one CCE includes 6 control channel basic units, that is, N is 6. Then, the size of the foregoing control resource set may be M times of 6. Taking M as an example, the size of the foregoing control resource set may be 18, that is, the control resource set includes 18 control channel basic units.

Optionally, in an implementation manner of the application, the foregoing M may be a multiple of a minimum value of a convergence level of all control channels sent on the control resource set. For example, the network device sends three control channels to the terminal device on the control resource set as an example. The aggregation level used by the network device when transmitting the control channel 1 to the terminal device is 2. The network device sends control to the terminal device. The aggregation level used in channel 2 is 4, and the aggregation level used by the network device when transmitting control channel 3 to the terminal device is 8. In this scenario, the minimum convergence level of all control channels sent on the control resource set is 2, that is, the above M may be a multiple of 2.

In some embodiments, the foregoing M may also be a product of a minimum value of a convergence level of all control channels transmitted on the control resource set and a preset coefficient, where the preset coefficient may be greater than 1 Integers, etc. Alternatively, the foregoing M may be a maximum value of an aggregation level of all control channels sent on the control resource set, or the foregoing M may also be a maximum value of a convergence level of all control channels sent on the control resource set and a preset The product of the coefficients. Alternatively, the foregoing M may be an aggregation level of any control channel sent on the control resource set, or the M may be a product of a convergence level of any control channel sent on the control resource set and a preset coefficient.

Optionally, the starting position of the foregoing control resource set in the frequency domain may be pre-configured, and may also be a multiple of the foregoing N. That is, the resource location where the first control channel elementary unit of the control resource set in the frequency domain can be divisible by N. For example, if N is 6 as an example, the resource location of the first control channel basic unit in the frequency domain in the control resource set can be divisible by 6.

S102. The network device sends, on the control resource set, control information carried on the control channel to the terminal device.

Here, the control information referred to here may be, for example, control information such as DCI.

S103. The terminal device determines a control resource set.

In this embodiment, S103 may be performed at any time before S104, including but not limited to being performed after S101-S102.

For the manner in which the terminal device determines the control resource set, refer to the manner in which the network device determines the control resource set in the above S101, and details are not described herein again.

S104. The terminal device blindly checks, on the control resource set, control information sent by the network device through the control channel.

Specifically, the terminal device may determine, according to the determined control resource set, a location of the control resource set on the control area of the downlink transmission resource, thereby blindly checking the control information sent by the network device at the location.

For the implementation of the blind detection of the foregoing terminal device, refer to the prior art, and details are not described herein again.

The method for transmitting a control channel provided by the present application, by setting a control resource set, enables the network device to send control information carried on the control channel to the terminal device on the control resource set, so that the terminal device can only be in the control resource. On the set, the control information sent by the blind detection improves the efficiency of the blind device control channel of the terminal device.

The following takes the basic unit of the control channel as a Resource Element Group (REG). In the NR standard, the control channel can be transmitted by using one or more CCEs on the control resource set. The plurality of CCEs referred to herein may be, for example, two, four or eight CCEs. One CCE is composed of multiple REGs. For example, one CCE is composed of 4 REGs or 6 REGs. Figure 5 is a schematic diagram of an REG. As shown in FIG. 5, each REG is composed of 12 consecutive subcarriers in the frequency domain, and is composed of one Orthogonal Frequency Division Multiplexing (OFDM) symbol in the time domain, that is, 12 frequencies. Consecutive RE composition on the domain. That is to say, each REG occupies the same bandwidth in the frequency domain as the bandwidth occupied by one RB. In other words, if the control resource set occupies one RB of 12 subcarriers in the frequency domain and occupies 2 OFDM symbols in the time domain as an example, one RB of the control resource set may include 24 REGs in total.

When the network device sends the control channel to the terminal device, the CCE to REG resource mapping needs to be performed on the control channel on the control resource set corresponding to the terminal device. Currently, NR supports the following CCE to REG resource mapping modes: continuous resource mapping (Localized), distributed resource mapping (Distributed), frequency domain priority resource mapping (Frequency-first), and time domain priority resource mapping. Way (first-first). When the localized CCE to REG resource mapping is used, the REGs belonging to the same CCE are continuously mapped in the frequency domain of the downlink transmission resource. When the resource mapping of CCE to REG is performed by using Distributed, the REGs belonging to the same CCE are discretely mapped in the frequency domain of the downlink transmission resource. When the resource mapping of the CCE to the REG is performed by using the frequency-first, the mapping order of the REGs belonging to the same CCE on the downlink transmission resource is the pre-frequency domain post-time domain. When the resource mapping of the CCE to the REG is performed by using the time-first, the mapping order of the REGs belonging to the same CCE on the downlink transmission resource is the first-time domain frequency domain and the latter frequency domain. In addition, the resource mapping manners of the CCEs to the REGs support REG bundling in the time domain and the frequency domain, and each REG bundling includes multiple REGs belonging to the same CCE. When performing CCE to REG resource mapping on the control channel, all REGs of a REG bundling in the frequency domain are continuously mapped in the frequency domain of the downlink transmission resource, and all REGs of a REG bundling in the time domain are transmitting resources in the downlink. The time domain is continuously mapped.

FIG. 6 is a signaling flowchart of another method for transmitting a control channel provided by the present application. The embodiment relates to a specific process of the network device adopting the flexible CCE to REG resource mapping manner and how to transmit the control information carried on the control channel to the terminal device on the control resource set. As shown in FIG. 6, the foregoing S102 may include the following steps:

S201. The network device selects, according to a resource mapping manner of the control channel, a control channel basic unit that maps the control channel in the control resource set.

In this embodiment, the control channel sent on the control resource set may be, for example, a Physical Downlink Control Channel (PDCCH). The control channel can be transmitted using at least one CCE on the set of control resources. Each CCE includes at least one REG. For example, each CCE may include 4 REGs or 6 REGs. Each CCE performs resource mapping in units of REG bundling in the frequency domain. That is, all REGs of each REG bundling are continuously mapped in the frequency domain.

When the network device selects the REG for mapping the control channel from the control resource set according to the resource mapping manner of the control channel, that is, when performing CCE to REG resource mapping on the control channel on the control resource set, the network device may be based on the following manner:

The first mode is: when the resource mapping mode of the control channel is the continuous resource mapping mode, the mapping control channel is selected in the control resource set according to the width of the interval between two adjacent CCEs in the frequency domain in each mapping order. REG. The width of the two CCEs in the mapping order in the frequency domain is: a multiple of the width occupied by the CCE in the frequency domain, or a width occupied by a REG bundling of the CCE in the frequency domain. multiple.

Here, the width of the two CCEs adjacent to each other in the mapping order may be the width of the interval between the starting points of the two CCEs, or may be the interval between the ending point of one CCE and the starting point of another CCE. The width can also be the width of the interval between the endpoints of the two CCEs, and the like. This document describes the width of the interval between two CCEs adjacent to each other in the frequency domain by the width of the interval between the end point of one CCE and the start point of another CCE.

The network device may perform resource mapping on the REGs of the two CCEs adjacent to the mapping order in the frequency domain position of the interval "multiple of the width occupied by the CCE". Alternatively, the network device may perform resource mapping on the REGs of the two CCEs adjacent to the mapping order on the frequency domain location of the interval "CCE is a multiple of the width occupied by one REG bundling in the frequency domain".

The width occupied by the CCE is a total width occupied by multiple REGs included in one CCE in the frequency domain. For example, if a CCE includes 6 REGs, the width occupied by one CCE is the width occupied by the connected REGs in the six frequency domains. The width occupied by one REG bundling is specifically determined by the number of REGs included in one REG bundling. Optionally, one REG bundling may include, for example, 1 REG, 2 REGs, 3 REGs, or 6 REGs. When a REG bundling includes 1 REG, the width occupied by one REG bundlig is the width occupied by one REG. When a REG bundling includes 3 REGs, the width occupied by one REG bundlig is the width occupied by the REGs connected in the three frequency domains.

It should be noted that, among the CCEs used in the above control channel, the two CCEs adjacent to any two mapping orders have the same or different widths in the frequency domain. Taking the multiple X of the CCE occupied width as an example, the width of the two CCEs adjacent to any two mapping orders is X times in the frequency domain, or two CCEs adjacent to one mapping order are in the frequency domain. The width of the upper interval is X, and the width of the two adjacent CCEs in the other mapping order is X+1 times in the frequency domain.

The second mode is: when the resource mapping mode of the control channel is the distributed resource mapping mode, the width of the two REG bundlings adjacent to each other on the CCE in the frequency domain is selected in the control resource set. Mapping the REG of the control channel; wherein, the REG bundling binding includes at least one REG continuously mapped in the frequency domain; and the width of the two REG bundlings adjacent to each other in the mapping sequence on the CCE: CCE occupied in the frequency domain A multiple of the width, or a multiple of the width occupied by a REG bundling binding of the CCE in the frequency domain.

Here, the width of the two REG bundlings adjacent to each other in the mapping order may be the width of the interval between the starting points of the two REG bundlings, or the end point of one REG bundling to another REG bundling. The width of the interval between the starting points may also be the width of the interval between the ends of the two REG bundlings, and the like. This document describes the width of the interval between two adjacent REG bundlings in the mapping order by the width of the interval between the end point of one REG bundling and the starting point of another REG bundling.

The network device may perform resource mapping on two REG bundlings in the mapping order adjacent to the same CCE in the frequency domain position of the interval "multiple of the width occupied by the CCE". Alternatively, the network device may perform resource mapping on two REG bundlings in the mapping order on the same CCE in a frequency domain position where the interval of the CCE is a multiple of the width occupied by one REG bundling in the frequency domain. It should be emphasized that the two REG bundlings adjacent to each other in the mapping order can be understood as two REG bundlings that are sequentially adjacent in the frequency domain.

It should be noted that, in the CCE used by the control channel, two REG bundlings adjacent to any two mapping orders on the same CCE have the same or different widths in the frequency domain. Taking the multiple Y of the CCE occupied width as an example, the width of the two REG bundlings adjacent to any two mapping orders is Y times in the frequency domain, or two REG bundlings in which one mapping order is adjacent. The width of the interval in the frequency domain is Y, and the width of the two adjacent REG bundlings in the other mapping order is Y+1 times in the frequency domain.

S202. The network device sends control information to the terminal device on a basic unit of the control channel that maps the control channel.

For the manner in which the network device sends the control information to the terminal device on the basic unit of the control channel of the mapping control channel, refer to the related art, and details are not described herein again.

S203. The terminal device blindly detects, by the resource mapping manner of the control channel, control information sent by the network device through the control channel on the control resource set.

Specifically, when the terminal device blindly detects the control information sent by the network device on the control resource set according to the resource mapping manner of the control channel, the terminal device may perform blind detection according to the following two methods:

The first mode: when the resource mapping mode of the control channel is the continuous resource mapping mode, the terminal device blindly checks the bandwidth of the two control channel elements adjacent to each mapping sequence in the frequency domain. Control information sent by the network device through the control channel.

That is to say, the terminal device can blindly check the two adjacent CCEs in the frequency domain position of the interval "multiple of the width occupied by the CCE". Alternatively, the terminal device may blindly check the two adjacent CCEs in the frequency domain position of the interval "CCE is a multiple of the width occupied by one REG bundling in the frequency domain" width.

The second mode: when the resource mapping mode of the control channel is the distributed resource mapping mode, the basic unit of the two control channels adjacent to each mapping channel element is bound to the width of the frequency domain. The control information sent by the network device through the control channel is blindly detected on the control resource set.

That is to say, the terminal device can blindly check two REG bundlings adjacent to each other on the same CCE in the frequency domain position of the interval "multiple of the width occupied by the CCE". Alternatively, the terminal device may blindly check two REG bundlings adjacent to each other on the same CCE in a frequency domain position of the interval "CCE is a multiple of the width occupied by one REG bundling in the frequency domain".

The method for transmitting a control channel provided by the present application is to set a resource mapping manner of two CCEs adjacent to each other in the frequency domain in the mapping order, and two REG bundling resources in the frequency domain adjacent to the mapping order on the same CCE. The mapping mode enables the network device to adopt a flexible CCE to REG resource mapping manner, and performs resource mapping on the control channel on the control resource set, and sends the signal to the terminal device, maintaining the flexibility of the CCE to REG resource mapping manner. On the basis of reducing the position of the resource mapping, the number of blind detections of the terminal device is reduced, thereby reducing the complexity of blind detection of the terminal device.

The method for transmitting the control channel provided by the present application will be described in detail below with reference to specific examples.

Example 1: Taking the control channel using 2 CCEs for transmission, where each CCE includes 6 REGs. The two CCEs are CCE0 and CCE1, respectively. The indexes of the six REGs included in CCE0 are: 0, 1, 2, 3, 4, and 5. The indexes of the six REGs included in CCE1 are: 6, 7, 8, 9, 10, and 11, respectively.

FIG. 7 is a schematic diagram of resource mapping of a control channel provided by the present application. FIG. 8 is a schematic diagram of resource mapping of another control channel provided by the present application. In FIG. 7 and FIG. 8, each square on the time-frequency resource represents one REG of the control resource set, and the square with the index number on the time-frequency resource is selected from the control resource set, and the REG of the control channel is mapped.

As shown in FIG. 7 and FIG. 8, the resource mapping mode of the control channel is a continuous resource mapping mode (Localized) and a frequency domain priority resource mapping mode (Frequency-first), and the size of a REG bundling of the CCE in the frequency domain ( When the size of the control channel occupies 1 OFDM symbol in the time domain, the mapping order of the REGs of the same CCE on the downlink transmission resource is the pre-frequency domain and the time domain, and the REGs belonging to the same CCE are transmitted in the downlink. The frequency domain of the resource is continuously mapped. Then, the network device may perform resource mapping on the REGs of the two CCEs in the mapping order in the frequency domain position of the interval "multiple of the width occupied by the CCE". Alternatively, the network device performs resource mapping on the REGs of the two CCEs adjacent to each other in the frequency domain position of the interval "CRE is a multiple of the width occupied by one REG bundling in the frequency domain".

For example, if the width of the CCE0 and the CCE1 in the frequency domain is a multiple of the width occupied by the CCE, the multiple may be 0 or a positive integer greater than or equal to 1. When the multiple is 0, the network device can map CCE0 and CCE1 in the frequency domain in a continuous mapping manner. That is, the interval between CCE0 and CCE1 in the frequency domain is 0. For details, refer to the mapping mode shown in Figure 7. When the multiple is a positive integer greater than or equal to 1, with 2 as an example, after the network device maps CCE0 and CCE1 in the frequency domain, CCE0 and CCE1 may be spaced apart by two CCEs in the frequency domain. That is, CCE0 and CCE1 are separated by 12 REGs in the frequency domain. For details, refer to the mapping mode shown in FIG. 8.

It should be noted that although this example is described by taking two CCEs as an example. When the control channel uses three or more CCEs for transmission, the two CCEs adjacent to any two mapping orders are equally or different in width in the frequency domain. For example, after the CCE0, CCE1, and CCE2 are resource mapped in the foregoing manner, the CCE0 and the CCE1 are in the frequency domain, and the CCE0 and the CCE1 are in the frequency domain. The width of the upper interval, and CCE1 and CCE2 may be the same or different in width in the frequency domain. For example, the width of CCE0 and CCE1 in the frequency domain is the width occupied by two CCEs, and the width of CCE1 and CCE2 in the frequency domain is the width occupied by three CCEs.

Example 2: Taking a control channel using 2 CCEs for transmission, where each CCE includes 6 REGs. The two CCEs are CCE0 and CCE1, respectively. The indexes of the six REGs included in CCE0 are: 0, 1, 2, 3, 4, and 5. The indexes of the six REGs included in CCE1 are: 6, 7, 8, 9, 10, and 11, respectively.

FIG. 9 is a schematic diagram of resource mapping of another control channel provided by the present application. FIG. 10 is a schematic diagram of resource mapping of another control channel provided by the present application. In FIG. 9 and FIG. 10, each square on the time-frequency resource represents one REG of the control resource set, and the square with the index number on the time-frequency resource is selected from the control resource set, and the REG of the control channel is mapped.

As shown in FIG. 9 and FIG. 10, the resource mapping manner of the control channel is a continuous resource mapping manner (Localized) and a time domain priority resource mapping manner (Time-first), and the size of a REG bundling of the CCE in the frequency domain ( 3) When the control channel occupies 2 OFDM symbols in the time domain, it indicates that the mapping order of the REGs of the same CCE on the downlink transmission resources is the first-time domain and the subsequent frequency domain, and the REGs belonging to the same CCE are transmitting in the downlink. The frequency domain of the resource is continuously mapped. Then, the network device may perform resource mapping on the REGs of the two CCEs in the mapping order in the frequency domain position of the interval "multiple of the width occupied by the CCE". Alternatively, the network device performs resource mapping on the REGs of the two CCEs adjacent to each other in the frequency domain position of the interval "CRE is a multiple of the width occupied by one REG bundling in the frequency domain".

For example, if the width of the CCE0 and the CCE1 in the frequency domain is a multiple of the width occupied by the CCE, the multiple may be 0 or a positive integer greater than or equal to 1. When the multiple is 0, the network device can map CCE0 and CCE1 in the frequency domain in a continuous mapping manner. That is, the interval between CCE0 and CCE1 in the frequency domain is 0. For details, refer to the mapping mode shown in Figure 9. When the multiple is a positive integer greater than or equal to 1, with 1 as an example, after the network device maps CCE0 and CCE1 in the frequency domain, CCE0 and CCE1 may be separated by a CCE occupied width in the frequency domain. That is, CCE0 and CCE1 are separated by 6 REGs in the frequency domain. For details, refer to the mapping mode shown in FIG.

Example 3: Taking the control channel using 2 CCEs for transmission, where each CCE includes 6 REGs. The two CCEs are CCE0 and CCE1, respectively. The indexes of the six REGs included in CCE0 are: 0, 1, 2, 3, 4, and 5. The indexes of the six REGs included in CCE1 are: 6, 7, 8, 9, 10, and 11, respectively.

FIG. 11 is a schematic diagram of resource mapping of another control channel provided by the present application. FIG. 12 is a schematic diagram of resource mapping of another control channel provided by the present application. In FIG. 11 and FIG. 12, each square on the time-frequency resource represents one REG of the control resource set, and the square with the index number on the time-frequency resource is selected from the control resource set, and the REG of the control channel is mapped.

As shown in FIG. 11 and FIG. 12, the resource mapping manner of the control channel is a continuous resource mapping manner (Localized) and a time domain priority resource mapping manner (Time-first), and the size of a REG bundling of the CCE in the frequency domain ( 2) When the control channel occupies 3 OFDM symbols in the time domain, the mapping order of the REGs of the same CCE on the downlink transmission resources is the first-time domain and the subsequent frequency domain, and the REGs belonging to the same CCE are transmitted in the downlink. The frequency domain of the resource is continuously mapped. Then, the network device may perform resource mapping on the REGs of the two CCEs in the mapping order in the frequency domain position of the interval "multiple of the width occupied by the CCE". Alternatively, the network device performs resource mapping on the REGs of the two CCEs adjacent to each other in the frequency domain position of the width of the width of the CCE occupied by one REG bundling in the frequency domain.

For example, if the width of the CCE0 and the CCE1 in the frequency domain is a multiple of the width occupied by the CCE, the multiple may be 0 or a positive integer greater than or equal to 1. When the multiple is 0, the network device can map CCE0 and CCE1 in the frequency domain in a continuous mapping manner. That is, the interval between the CCE0 and the CCE1 in the frequency domain is 0. For details, refer to the mapping mode shown in FIG. When the multiple is a positive integer greater than or equal to 1, with 1 as an example, after the network device maps CCE0 and CCE1 in the frequency domain, CCE0 and CCE1 may be separated by a CCE occupied width in the frequency domain. That is, CCE0 and CCE1 are separated by 6 REGs in the frequency domain. For details, refer to the mapping mode shown in FIG.

It should be noted that although this example is described by taking two CCEs as an example. When the control channel uses three or more CCEs for transmission, the two CCEs adjacent to any two mapping orders are equally or different in width in the frequency domain. For example, after the CCE0, CCE1, and CCE2 are resource mapped in the above manner, CCE0 and CCE1 are in the frequency domain. The width of the upper interval, and CCE1 and CCE2 may be the same or different in width in the frequency domain. For example, the width of CCE0 and CCE1 in the frequency domain is the width occupied by two CCEs, and the width of CCE1 and CCE2 in the frequency domain is the width occupied by three CCEs.

Example 4: Taking a control channel using 1 CCE for transmission, where the CCE includes 6 REGs. The indexes of the six REGs are: 0, 1, 2, 3, 4, and 5.

FIG. 13 is a schematic diagram of resource mapping of another control channel provided by the present application. As shown in FIG. 13, the resource mapping mode of the control channel is a distributed resource mapping mode (Distributed) and a frequency domain priority resource mapping mode (Frequency-first), and the size (size) of a REG bundling of the CCE in the frequency domain is 2. When the control channel occupies 1 OFDM symbol in the time domain, it indicates that the mapping order of the REG of the same CCE on the downlink transmission resource is the pre-frequency domain post-time domain, and the different REG bundling belonging to the same CCE is in the downlink transmission resource. The frequency domain is discretely mapped. In this example, the CCE includes 6 REGs, wherein the REGs with

indices

0 and 1 belong to REG bundling0, the REGs with

indexes

2 and 3 belong to REG bundling1, and the REGs with

indexes

4 and 5 belong to REG bundling2. Then, the network device may perform resource mapping on the two REG bindings in the mapping order on the CCE in the frequency domain position of the interval "multiple of the width occupied by the CCE". Alternatively, the network device performs resource mapping on the two REG bindings adjacent to the mapping order on the CCE in a frequency domain position where the interval of the CCE is a multiple of the width occupied by one REG bundling in the frequency domain.

It should be emphasized that the two REG bindings adjacent to each other in the mapping order can be understood as mapping two REG bindings adjacent in the frequency domain. In this example, since the control channel occupies 1 OFDM symbol in the time domain, the two REGs adjacent to the mapping order in the above frequency domain are bound to REG bundling0 and REG bundling1, or REG bundling1 and REG bundling2.

For example, if the width of the interval between the two REGs in the mapping order on the same CCE is the multiple of the width occupied by the CCE, the multiple may be a positive integer greater than or equal to 1. For example, if the multiple is 2, after the network device maps all the REGs of the CCE in the frequency domain, the two REG bindings in the mapping order on the CCE may be separated by the width occupied by the two CCEs. That is, REG bundling0 and REG bundling1 are separated by 12 REGs in the frequency domain, and REG bundling1 and REG bundling2 are separated by 12 REGs in the frequency domain. For details, refer to the mapping mode shown in FIG.

It should be noted that although this example uses two REG bundlings adjacent to any two mapping orders on the same CCE, the widths of the intervals in the frequency domain are the same, that is, REG bundling0 and REG bundling1 are in the frequency domain. The width of the interval is the same as the width of the REG bundling1 and REG bundling2 in the frequency domain. However, those skilled in the art can understand that two REG bundlings adjacent to any two mapping orders on the same CCE may have different widths in the frequency domain. With continued reference to the above examples, for example, REG bundling0 and REG bundling1 are spaced in the frequency domain by the width occupied by 2 CCEs, and REG bundling1 and REG bundling2 may be separated by the width occupied by 1 CCE in the frequency domain, or, REG bundling1 and REG bundling2 In the frequency domain, the width occupied by 3 CCEs and the like can be separated.

Example 5: Taking a control channel using 1 CCE for transmission, where the CCE includes 6 REGs. The indexes of the six REGs are: 0, 1, 2, 3, 4, and 5.

FIG. 14 is a schematic diagram of resource mapping of another control channel provided by the present application. As shown in FIG. 14, the resource mapping mode of the control channel is a distributed resource mapping mode (Distributed) and a frequency domain priority resource mapping mode (Frequency-first), and the size (size) of a REG bundling of the CCE in the frequency domain is 3. When the control channel occupies 1 OFDM symbol in the time domain, it indicates that the mapping order of the REG of the same CCE on the downlink transmission resource is the pre-frequency domain post-time domain, and the different REG bundling belonging to the same CCE is in the downlink transmission resource. The frequency domain is discretely mapped. In this example, the CCE includes six REGs, wherein the REGs with indices of 0, 1, 2 belong to REG bundling0, and the REGs with indexes of 3, 4, and 5 belong to REG bundling1. Then, the network device may perform resource mapping on the two REG bindings in the mapping order on the CCE in the frequency domain position of the width of the "multiple of the width occupied by the CCE". Alternatively, the network device performs resource mapping on the two REG bindings in the mapping order on the CCE in the frequency domain position of the width of the width of the CCE occupied by one REG bundling in the frequency domain.

It should be emphasized that the two REG bindings adjacent to each other in the mapping order can be understood as mapping two REG bindings adjacent in the frequency domain. In this example, since the control channel occupies 1 OFDM symbol in the time domain, the two REGs adjacent in the mapping order on the above frequency domain are bound to REG bundling0 and REG bundling1.

For example, if the width of the interval between the two REGs in the mapping order on the same CCE is the multiple of the width occupied by the CCE, the multiple may be a positive integer greater than or equal to 1. For example, if the multiple is 1 for the network device, after the network device maps all the REGs of the CCE in the frequency domain, the two REG bindings in the mapping order on the CCE may be separated by the width occupied by one CCE. That is, REG bundling0 and REG bundling1 are separated by 6 REGs in the frequency domain. For details, refer to the mapping mode shown in FIG.

It should be noted that when the CCE includes three or more REG bundlings, the CCE includes: REG bundling0, REG bundling1, and REG bundling2. The width of the interval between the REG bundling0 and the REG bundling1 in the frequency domain may be the same as the width of the interval between the REG bundling1 and the REG bundling2 in the frequency domain, that is, two REG bundlings adjacent to any two mapping orders on the same CCE. The width of the interval in the frequency domain is the same or different. The implementation and principle are similar to the above examples, and will not be described again.

Example 6: Taking a control channel using 1 CCE for transmission, where the CCE includes 6 REGs. The indexes of the six REGs are: 0, 1, 2, 3, 4, and 5.

FIG. 15 is a schematic diagram of resource mapping of another control channel provided by the present application. As shown in FIG. 15, the resource mapping mode of the control channel is a distributed resource mapping mode (Distributed) and a time domain priority resource mapping mode (Time-first), and the size (size) of a REG bundling of the CCE in the frequency domain is 1. When the control channel occupies 2 OFDM symbols in the time domain, it indicates that the mapping order of the REGs of the same CCE on the downlink transmission resources is the first-time domain and the subsequent frequency domain, and the different REGs of the same CCE are in the downlink transmission resources. The frequency domain is discretely mapped. In this example, the CCE includes 6 REGs, where the REG with index 0 belongs to REG bundling0, the REG with index 1 belongs to REG bundling1, the REG with index 2 belongs to REG bundling2, and the REG with index 3 belongs to REG bundling3. The REG with index 4 belongs to REG bundling4, and the REG with index 5 belongs to REG bundling5. Then, the network device may perform resource mapping on the two REG bindings in the mapping order on the CCE in the frequency domain position of the width of the "multiple of the width occupied by the CCE". Alternatively, the network device performs resource mapping on the two REG bindings in the mapping order on the CCE in the frequency domain position of the width of the width of the CCE occupied by one REG bundling in the frequency domain.

It should be emphasized that the two REG bindings adjacent to each other in the mapping order can be understood as mapping two REG bindings adjacent in the frequency domain. In this example, since the control channel occupies 2 OFDM symbols in the time domain, the two REGs adjacent to the mapping order in the above frequency domain are bound to REG bundling0 and REG bundling2, REG bundling1 and REG bundling3, REG bundling2 and REG bundling4, REG bundling3 and REG bundling5.

For example, if the width of the interval between the two REGs in the mapping order on the same CCE is the multiple of the width occupied by the CCE, the multiple may be a positive integer greater than or equal to 1. For example, if the multiple is 1 for the network device, after the network device maps all the REGs of the CCE in the frequency domain, the two REG bindings in the mapping order on the CCE may be separated by the width occupied by one CCE. For example, REG bundling0 and REG bundling2 are separated by 6 REGs in the frequency domain. For details, refer to the mapping mode shown in FIG.

It should be noted that although this example uses two REG bundlings adjacent to each other in the frequency domain on the same CCE, the widths of the intervals in the frequency domain are the same, for example, REG bundling0 and REG bundling2. The width of the interval in the frequency domain is the same as the width of the REG bundling2 and REG bundling4 in the frequency domain. However, those skilled in the art can understand that any two REG bundlings adjacent to each other in the frequency domain on the same CCE may have different widths in the frequency domain. With continued reference to the above examples, for example, REG bundling0 and REG bundling2 are spaced in the frequency domain by the width occupied by 2 CCEs, and REG bundling2 and REG bundling4 may be separated by a width occupied by 1 CCE in the frequency domain, or, REG bundling2 and REG bundling4 In the frequency domain, the width occupied by 3 CCEs and the like can be separated.

Example 7: Taking a control channel using 1 CCE for transmission, where the CCE includes 6 REGs. The indexes of the six REGs are: 0, 1, 2, 3, 4, and 5.

FIG. 16 is a schematic diagram of resource mapping of another control channel provided by the present application. As shown in FIG. 16, the resource mapping mode of the control channel is a distributed resource mapping mode (Distributed) and a time domain priority resource mapping mode (Time-first), and the size (size) of a REG bundling of the CCE in the frequency domain is 1. When the control channel occupies 3 OFDM symbols in the time domain, it indicates that the mapping order of the REGs of the same CCE on the downlink transmission resources is the first-time domain and the subsequent frequency domain, and the different REGs of the same CCE are in the downlink transmission resources. The frequency domain is discretely mapped. In this example, the CCE includes 6 REGs, where the REG with index 0 belongs to REG bundling0, the REG with index 1 belongs to REG bundling1, the REG with index 2 belongs to REG bundling2, and the REG with index 3 belongs to REG bundling3. The REG with index 4 belongs to REG bundling4, and the REG with index 5 belongs to REG bundling5. Then, the network device may perform resource mapping on the two REG bindings in the mapping order on the CCE in the frequency domain position of the width of the "multiple of the width occupied by the CCE". Alternatively, the network device performs resource mapping on the two REG bindings in the mapping order on the CCE in the frequency domain position of the width of the width of the CCE occupied by one REG bundling in the frequency domain.

It should be emphasized that the two REG bindings adjacent to each other in the mapping order can be understood as mapping two REG bindings adjacent in the frequency domain. In this example, since the control channel occupies 3 OFDM symbols in the time domain, the two REGs adjacent to the mapping order in the above frequency domain are bound to REG bundling0 and REG bundling3, REG bundling1 and REG bundling4, REG bundling2 and REG bundling5.

For example, if the width of the interval between the two REGs in the mapping order on the same CCE is the multiple of the width occupied by the CCE, the multiple may be a positive integer greater than or equal to 1. For example, if the multiple is 1 for the network device, after the network device maps all the REGs of the CCE in the frequency domain, the two REG bindings in the mapping order on the CCE may be separated by the width occupied by one CCE. For example, REG bundling0 and REG bundling3 are separated by 6 REGs in the frequency domain. For details, refer to the mapping mode shown in FIG. 16.

Example 8 is an example in which the control channel uses 2 CCEs for transmission, where each CCE includes 6 REGs. The two CCEs are CCE0 and CCE1, respectively. The indexes of the six REGs included in CCE0 are: 0, 1, 2, 3, 4, and 5. The indexes of the six REGs included in CCE1 are: 6, 7, 8, 9, 10, and 11, respectively.

FIG. 17 is a schematic diagram of resource mapping of another control channel provided by the present application. As shown in FIG. 17, the resource mapping mode of the control channel is a distributed resource mapping mode (Distributed) and a frequency domain priority resource mapping mode (Frequency-first), and the control channel resource set includes two CCEs, and each CCE is in frequency. The size of a REG bundling on the domain is 3. When the control channel occupies 1 OFDM symbol in the time domain, the mapping order of the REGs of the multiple CCEs on the downlink transmission resources is the pre-frequency domain and the time domain, and Different REG bundlings belonging to the same CCE are discretely mapped in the frequency domain of downlink transmission resources. In this example, CRE0 includes 6 REGs, where REGs with indices of 0, 1, 2 belong to REG bundling0, and REGs with indexes of 3, 4, and 5 belong to REG bundling1. The 6 REGs included in CCE1, wherein the REGs with indexes of 6, 7, and 8 belong to REG bundling0, and the REGs with indexes of 9, 10, and 11 belong to REG bundling1. The network device may perform resource mapping on the two REG bindings of CCE0 and CCE1 in the frequency domain position of the interval "multiple of the width occupied by the CCE". Alternatively, the network device performs resource mapping on the two REG bindings of CCE0 and CCE1 in the frequency domain position of the interval "CCE is a multiple of the width occupied by one REG bundling in the frequency domain".

After the mapping, the interval of different REG bindings of CCE0 and the interval of different REG hops of CCE1 are both the width of "multiple of the width occupied by CCE" or the width of a REG bundling occupied by CCE in the frequency domain. The multiple of the width.

In addition, in the control channel resource mapping diagram shown in FIG. 7 to FIG. 17 , the bandwidth of the control channel resource set is only one indication. The bandwidth of the control channel resource set in this application is not limited thereto.

FIG. 18 is a schematic structural diagram of a network device according to the present application. As shown in FIG. 18, the network device may include: a determining module 11 and a sending module 12. among them,

The determining module 11 is configured to determine a control resource set, where the control resource set is a time-frequency resource set that is allowed to send a control channel on the downlink transmission resource, where the size of the control resource set is M times of N, and the N is a number of control channel basic units included in a control channel element; the N and the M are both positive integers greater than or equal to 1; optionally, the start position of the control resource set in the frequency domain is the A multiple of N. Optionally, the M is a multiple of a minimum value of a convergence level of all control channels sent on the control resource set.

The sending module 12 is configured to send, by using the control resource set, control information carried on the control channel to the terminal device.

The network device provided by the present application can perform the action on the network device side in the foregoing method embodiment, and the implementation principle and the technical effect are similar, and details are not described herein again.

FIG. 19 is a schematic structural diagram of another network device provided by the present application. As shown in FIG. 19, on the basis of the block diagram shown in FIG. 18, the sending module 12 of the network device may include:

The selecting unit 121 is configured to select, according to a resource mapping manner of the control channel, a control channel basic unit that maps the control channel, where the control channel uses at least one control on the control resource set. Channel elements are transmitted, each of the control channel elements including at least one control channel base unit;

The sending unit 122 is configured to send the control information to the terminal device on a control channel basic unit that maps the control channel.

Optionally, in an implementation manner of the present application, the selecting unit 121 is specifically configured to: when the resource mapping manner of the control channel is a continuous resource mapping manner, two adjacent controls according to each mapping order The width of the channel element in the frequency domain, and the control channel basic unit that maps the control channel is selected in the control resource set; wherein the width of the two control channel elements adjacent to each other in the mapping sequence is: a multiple of a width occupied by the control channel element in the frequency domain, or a multiple of a width occupied by a control channel element in a frequency domain of a control channel base unit binding. Exemplarily, two control channel elements adjacent to any two mapping orders have the same or different widths in the frequency domain.

Optionally, in an implementation manner of the application, the selecting unit 121 is specifically configured to: according to the mapping order of each of the control channel elements, when the resource mapping mode of the control channel is a distributed resource mapping mode The two adjacent control channel basic units are bound to a width in the frequency domain, and the control channel basic unit that maps the control channel is selected in the control resource set; wherein the control channel basic unit binding includes at least a control channel basic unit continuously mapped in the frequency domain; the two control channel basic units adjacent to the mapping order on the control channel element are bound to a width in the frequency domain: the control channel element occupies in the frequency domain A multiple of the width, or a multiple of the width of the control channel element occupied by a control channel base unit in the frequency domain. Exemplarily, two control channel basic unit adjacent to any two mapping orders on the control channel element are bound, and the widths of the intervals in the frequency domain are the same or different.

FIG. 20 is a schematic structural diagram of a terminal device provided by the present application. As shown in FIG. 20, the terminal device may include: a determining module 21 and a blind detecting module 22. among them,

The determining module 21 is configured to determine a control resource set, where the control resource set is a time-frequency resource set that is allowed to send a control channel on the downlink transmission resource, where the size of the control resource set is M times of N, and the N is a number of control channel basic units included in a control channel element; the N and the M are both positive integers greater than or equal to 1; optionally, the start position of the control resource set in the frequency domain is the A multiple of N. Optionally, the M is a multiple of a minimum value of a convergence level of all control channels sent on the control resource set.

The blind detection module 22 is configured to blindly check, on the control resource set, control information sent by the network device through the control channel.

Optionally, in an implementation manner of the present application, the blind detection module 22 is specifically configured to: according to the resource mapping manner of the control channel, blindly check, on the control resource set, the network device to send through the control channel. Control information.

For example, the blind detection module 22 is specifically configured to: when the resource mapping mode of the control channel is the continuous resource mapping mode, the width of the two control channel elements adjacent to each mapping order in the frequency domain is And controlling, by the control resource set, the control information sent by the blind detection network device by using the control channel; wherein, the width of the two control channel elements adjacent to the mapping sequence in the frequency domain is: the control channel element is in the frequency domain A multiple of the occupied width, or a multiple of the width of the control channel element occupied by a control channel base unit in the frequency domain. Exemplarily, two control channel elements adjacent to any two mapping orders have the same or different widths in the frequency domain.

For example, the blind detection module 22 is specifically configured to: when the resource mapping manner of the control channel is a distributed resource mapping manner, base unit binding of two control channels adjacent to each mapping channel element. Controlling, by the control resource collection, the control information sent by the network device over the control channel, wherein the control channel basic unit binding includes at least one control that continuously maps in the frequency domain a channel basic unit; a width of the two control channel basic units adjacent to each other on the control channel element in a frequency domain: a multiple of a width occupied by the control channel element in the frequency domain, or The control channel element is a multiple of the width occupied by a control channel base unit binding in the frequency domain. Exemplarily, two control channel basic units adjacent to any two mapping orders on the control channel element are bound, and the widths of the intervals in the frequency domain are the same or different.

The terminal device provided by the present application can perform the action on the terminal device side in the foregoing method embodiment, and the implementation principle and the technical effect are similar, and details are not described herein again.

It should be noted that it should be understood that the above implementation module can be a transmitter when actually implemented. The division of the determination module and the blind detection module is only a division of logical functions. In actual implementation, each module on a device may be integrated into one physical entity in whole or in part, or may be physically separated. And all the modules on one device can be implemented by software in the form of processing component calls; or all of them can be implemented in hardware form; some modules can be realized by processing component calling software, and some modules are realized by hardware. For example, the determining module may be a separately set processing element, or may be integrated in one of the above-mentioned devices, or may be stored in the memory of one of the devices in the form of program code, by one of the devices. The processing component invokes and performs the functions of the above determining module. The implementation of other modules is similar. In addition, all or part of these modules on one device can be integrated or implemented independently. The processing elements described herein can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the foregoing method or each of the above modules on a device may be completed by an integrated logic circuit of hardware in the processor element or an instruction in a form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (digital) Singnal processor (DSP), or one or more Field Programmable Gate Array (FPGA). For another example, when one of the above modules is implemented in the form of a processing component scheduler code, the processing component may be a general purpose processor, such as a central processing unit (CPU) or other processor that can call the program code. As another example, these modules on a device can be integrated and implemented in the form of a system-on-a-chip (SOC).

FIG. 21 is a schematic structural diagram of still another network device provided by the present application. As shown in FIG. 21, the network device may include a processor 31 (for example, a CPU), a memory 32, a receiver 33, and a transmitter 34. The receiver 33 and the transmitter 34 are both coupled to the processor 31, and the processor 31 controls reception. The receiving operation of the processor 33, the processor 31 controls the transmitting operation of the transmitter 34; the memory 32 may include a high speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory, in which various instructions may be stored in the memory 32. , for performing various processing functions and implementing the method steps of the present application. Optionally, the network device involved in the present application may further include: a power source 35, a communication bus 36, and a communication port 37. The receiver 33 and the transmitter 34 may be integrated in the transceiver of the terminal device or may be an independent transceiver antenna on the terminal device. Communication bus 36 is used to implement a communication connection between components. The communication port 37 is used to implement connection communication between the terminal device and other peripheral devices.

In the present application, the memory 32 is used to store computer executable program code, and the program code includes instructions. When the processor 31 executes the instruction, the instruction causes the network device to perform the action on the network device side shown in the foregoing method embodiment, which is implemented. The principle and technical effects are similar and will not be described here.

FIG. 22 is a schematic structural diagram of another terminal device provided by the present application. As shown in FIG. 22, the terminal device may include a processor 41 (for example, a CPU), a memory 42, a receiver 43, and a transmitter 44. The receiver 43 and the transmitter 44 are both coupled to the processor 41, and the processor 41 controls reception. The receiving operation of the processor 43, the processor 41 controls the transmitting operation of the transmitter 44; the memory 42 may include a high speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory, in which various instructions may be stored. , for performing various processing functions and implementing the method steps of the present application. Optionally, the terminal device involved in the present application may further include: a power source 45, a communication bus 46, and a communication port 47. The receiver 43 and the transmitter 44 may be integrated in the transceiver of the terminal device or may be an independent transceiver antenna on the terminal device. Communication bus 46 is used to implement a communication connection between components. The communication port 47 is used to implement connection communication between the terminal device and other peripheral devices.

In the present application, the memory 42 is used to store computer executable program code, and the program code includes instructions. When the processor 41 executes the instruction, the instruction causes the terminal device to perform the action on the terminal device side shown in the foregoing method embodiment, which is implemented. The principle and technical effects are similar and will not be described here.

As in the above embodiment, the terminal device involved in the present application may be a wireless terminal such as a mobile phone or a tablet computer. Therefore, taking the terminal device as a mobile phone as an example: FIG. 23 is a structural block diagram of the terminal device provided by the application as a mobile phone. Referring to FIG. 23, the mobile phone may include: a radio frequency (RF) circuit 1110, a memory 1120, an input unit 1130, a display unit 1140, a sensor 1150, an audio circuit 1160, a wireless fidelity (WiFi) module 1170, and processing. Device 1180, and power supply 1190 and other components. It will be understood by those skilled in the art that the structure of the handset shown in FIG. 23 does not constitute a limitation to the handset, and may include more or less components than those illustrated, or some components may be combined, or different components may be arranged.

The following describes the components of the mobile phone in detail with reference to FIG. 23:

The RF circuit 1110 can be used for receiving and transmitting signals during the transmission or reception of information or during a call. For example, after receiving the downlink information of the base station, the processing is performed by the processor 1180. In addition, the uplink data is sent to the base station. Generally, RF circuits include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, RF circuitry 1110 can also communicate with the network and other devices via wireless communication. The above wireless communication may use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division). Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), e-mail, Short Messaging Service (SMS), and the like.

The memory 1120 can be used to store software programs and modules, and the processor 1180 executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory 1120. The memory 1120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to Data created by the use of the mobile phone (such as audio data, phone book, etc.). Moreover, memory 1120 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 1130 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function controls of the handset. Specifically, the input unit 1130 may include a touch panel 1131 and other input devices 1132. The touch panel 1131, also referred to as a touch screen, can collect touch operations on or near the user (such as the user using a finger, a stylus, or the like on the touch panel 1131 or near the touch panel 1131. Operation), and drive the corresponding connecting device according to a preset program. Optionally, the touch panel 1131 may include two parts: a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information. The processor 1180 is provided and can receive commands from the processor 1180 and execute them. In addition, the touch panel 1131 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 1131, the input unit 1130 may also include other input devices 1132. Specifically, other input devices 1132 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.

The display unit 1140 can be used to display information input by the user or information provided to the user as well as various menus of the mobile phone. The display unit 1140 may include a display panel 1141. Alternatively, the display panel 1141 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. Further, the touch panel 1131 can be overlaid on the display panel 1141. When the touch panel 1131 detects a touch operation thereon or nearby, the touch panel 1131 transmits to the processor 1180 to determine the type of the touch event, and then the processor 1180 is The type of touch event provides a corresponding visual output on display panel 1141. Although the touch panel 1131 and the display panel 1141 are used as two independent components to implement the input and input functions of the mobile phone in FIG. 10, in some embodiments, the touch panel 1131 and the display panel 1141 may be integrated. Realize the input and output functions of the phone.

The handset may also include at least one type of sensor 1150, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 1141 according to the brightness of the ambient light, and the light sensor may close the display panel 1141 and/or when the mobile phone moves to the ear. Or backlight. As a kind of motion sensor, the acceleration sensor can detect the acceleration of each direction (usually three axes). When it is still, it can detect the magnitude and direction of gravity. It can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching, related games). , magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as the mobile phone can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, no longer repeat .

Audio circuitry 1160, speaker 1161, and microphone 1162 can provide an audio interface between the user and the handset. The audio circuit 1160 can transmit the converted electrical data of the received audio data to the speaker 1161, and convert it into a sound signal output by the speaker 1161; on the other hand, the microphone 1162 converts the collected sound signal into an electrical signal, and the audio circuit 1160 After receiving, it is converted into audio data, and then processed by the audio data output processor 1180, transmitted to the other mobile phone via the RF circuit 1110, or outputted to the memory 1120 for further processing.

WiFi is a short-range wireless transmission technology. The mobile phone can help users to send and receive emails, browse web pages and access streaming media through the WiFi module 1170, which provides users with wireless broadband Internet access. Although FIG. 23 shows the WiFi module 1170, it can be understood that it does not belong to the essential configuration of the mobile phone, and may be omitted as needed within the scope of not changing the essence of the present application.

The processor 1180 is a control center for the handset, which connects various portions of the entire handset using various interfaces and lines, by executing or executing software programs and/or modules stored in the memory 1120, and invoking data stored in the memory 1120, The phone's various functions and processing data, so that the overall monitoring of the phone. Optionally, the processor 1180 may include one or more processing units; for example, the processor 1180 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like. The modem processor primarily handles wireless communications. It will be appreciated that the above described modem processor may also not be integrated into the processor 1180.

The handset also includes a power supply 1190 (such as a battery) that powers the various components. Alternatively, the power supply can be logically coupled to the processor 1180 via a power management system to manage charging, discharging, and power management functions through the power management system.

The mobile phone can also include a camera 1200, which can be a front camera or a rear camera. Although not shown, the mobile phone may further include a Bluetooth module, a GPS module, and the like, and details are not described herein again.

In this application, the processor 1180 included in the mobile phone may be used to perform the foregoing method for transmitting a control channel, and the implementation principle and technical effects are similar, and details are not described herein again.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present invention are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, computer instructions can be wired from a website site, computer, server or data center (eg Coax, fiber, digital subscriber line (DSL) or wireless (eg, infrared, wireless, microwave, etc.) is transmitted to another website, computer, server, or data center. The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. Useful media can be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)).

Claims

A method for transmitting a control channel, the method comprising:

The network device determines a control resource set, where the control resource set is a time-frequency resource set on the downlink transmission resource that is allowed to send a control channel, where the size of the control resource set is M times N, and the N is a control channel element The number of control channel basic units included; the N and the M are positive integers greater than or equal to 1;

The network device sends control information carried on the control channel to the terminal device on the control resource set.
The method according to claim 1, wherein the starting point position of the control resource set in the frequency domain is a multiple of the N.
The method according to claim 1 or 2, wherein said M is a multiple of a minimum value of a convergence level of all control channels transmitted on said set of control resources.
The method according to any one of claims 1-3, wherein the network device sends control information carried on the control channel to the terminal device on the control resource set, including:

The network device selects, according to a resource mapping manner of the control channel, a control channel basic unit that maps the control channel, where the control channel uses at least one control channel element on the control resource set. Performing transmission, each of the control channel elements including at least one control channel basic unit;

The network device sends the control information to the terminal device on a control channel basic unit that maps the control channel.
The method according to claim 4, wherein the network device selects, according to the resource mapping manner of the control channel, a control channel basic unit that maps the control channel in the control resource set, including:

When the resource mapping mode of the control channel is the continuous resource mapping mode, the network device selects the width of the two control channel elements adjacent to each mapping sequence in the frequency domain, and selects the control resource set. Mapping a control channel basic unit of the control channel;

The width of the two control channel elements adjacent to each other in the mapping sequence is: a multiple of a width occupied by the control channel element in the frequency domain, or a control of the control channel element in the frequency domain. The multiple of the width occupied by the channel base unit binding.
The method according to claim 5, wherein the two control channel elements adjacent to any two mapping orders are different in width in the frequency domain.
The method according to claim 4, wherein the network device selects, according to a resource mapping manner of the control channel, a control channel basic unit that maps the control channel in the control resource set, including:

When the resource mapping mode of the control channel is the distributed resource mapping mode, the network device is bound according to the width of the interval between the two control channel basic units adjacent to each mapping channel element on the frequency domain. Selecting, in the set of control resources, a control channel basic unit that maps the control channel;

The control unit basic unit binding includes at least one control channel basic unit continuously mapped in the frequency domain; and the two control channel basic units adjacent to the mapping order on the control channel element are bound in the frequency domain. Width: a multiple of the width of the control channel element occupied in the frequency domain, or a multiple of the width of the control channel element occupied by a control channel base unit in the frequency domain.
The method according to claim 7, wherein two control channel basic units adjacent to any two mapping orders on the control channel element are bound, and the widths of the intervals in the frequency domain are different.
A method for transmitting a control channel, the method comprising:

The terminal device determines a control resource set, where the control resource set is a time-frequency resource set on the downlink transmission resource that is allowed to send a control channel, where the size of the control resource set is M times N, and the N is a control channel element. The number of control channel basic units included; the N and the M are positive integers greater than or equal to 1;

The terminal device blindly checks, on the control resource set, control information sent by the network device through the control channel.
The method according to claim 9, wherein the starting point position of the control resource set in the frequency domain is a multiple of the N.
The method according to claim 9 or 10, wherein said M is a multiple of a minimum value of a convergence level of all control channels transmitted on said set of control resources.
The method according to any one of claims 9 to 11, wherein the terminal device on the control resource set, the control information sent by the network device through the control channel by the blind detection network device includes:

And the terminal device blindly detects, on the control resource set, control information sent by the network device by using the control channel according to the resource mapping manner of the control channel.
The method according to claim 12, wherein the terminal device blindly detects the control information sent by the network device through the control channel on the control resource set according to the resource mapping manner of the control channel, including:

When the resource mapping mode of the control channel is the continuous resource mapping mode, the terminal device is blind on the control resource set according to the width of the two control channel elements adjacent to each mapping sequence in the frequency domain. Checking control information sent by the network device through the control channel;

The width of the two control channel elements adjacent to each other in the mapping sequence is: a multiple of a width occupied by the control channel element in the frequency domain, or a control of the control channel element in the frequency domain. The multiple of the width occupied by the channel base unit binding.
The method according to claim 13, wherein the two control channel elements adjacent to any two mapping orders are different in width in the frequency domain.
The method according to claim 12, wherein the terminal device blindly detects the control information sent by the network device through the control channel on the control resource set according to the resource mapping manner of the control channel, including:

When the resource mapping mode of the control channel is the distributed resource mapping mode, the terminal device binds the width of the interval between the two basic control channels adjacent to each other on the control channel element in the frequency domain. Controlling, by the control resource collection, control information sent by the network device through the control channel;

The control unit basic unit binding includes at least one control channel basic unit continuously mapped in the frequency domain; and the two control channel basic units adjacent to the mapping order on the control channel element are bound in the frequency domain. Width: a multiple of the width of the control channel element occupied in the frequency domain, or a multiple of the width of the control channel element occupied by a control channel base unit in the frequency domain.
The method according to claim 15, wherein two control channel basic units adjacent to any two mapping orders on the control channel element are bound, and the widths of the intervals in the frequency domain are different.
A network device, where the network device includes:

a determining module, configured to determine a control resource set, where the control resource set is a time-frequency resource set that is allowed to send a control channel on a downlink transmission resource, where the size of the control resource set is M times N, and the N is one a number of control channel basic units included in the control channel element; the N and the M are positive integers greater than or equal to 1;

And a sending module, configured to send, by the control device, control information carried on the control channel to the terminal device.
The network device according to claim 17, wherein the starting point position of the control resource set in the frequency domain is a multiple of the N.
The network device according to claim 17 or 18, wherein said M is a multiple of a minimum value of a convergence level of all control channels transmitted on said set of control resources.
The network device according to any one of claims 17 to 19, wherein the sending module comprises:

a selecting unit, configured to select, according to a resource mapping manner of the control channel, a control channel basic unit that maps the control channel, where the control channel uses at least one control channel on the control resource set Elements are transmitted, each of the control channel elements comprising at least one control channel base unit;

And a sending unit, configured to send the control information to the terminal device on a control channel basic unit that maps the control channel.
A network device according to claim 20, wherein

The selecting unit is specifically configured to: when the resource mapping manner of the control channel is a continuous resource mapping manner, the width of the two control channel elements adjacent to each mapping order in the frequency domain is in the control Selecting, in the resource set, a control channel basic unit that maps the control channel;

The width of the two control channel elements adjacent to each other in the mapping sequence is: a multiple of a width occupied by the control channel element in the frequency domain, or a control of the control channel element in the frequency domain. The multiple of the width occupied by the channel base unit binding.
The network device according to claim 21, wherein the two control channel elements adjacent to any two mapping orders are different in width in the frequency domain.
A network device according to claim 20, wherein

The selecting unit is configured to: when the resource mapping mode of the control channel is a distributed resource mapping mode, the basic unit of the two control channels adjacent to each mapping channel element is bound to the frequency domain. Selecting, in the set of control resources, a control channel basic unit that maps the control channel;

The control unit basic unit binding includes at least one control channel basic unit continuously mapped in the frequency domain; and the two control channel basic units adjacent to the mapping order on the control channel element are bound in the frequency domain. Width: a multiple of the width of the control channel element occupied in the frequency domain, or a multiple of the width of the control channel element occupied by a control channel base unit in the frequency domain.
The network device according to claim 23, wherein two control channel basic units adjacent to any two mapping orders on the control channel element are bound, and the widths of the intervals in the frequency domain are different.
A terminal device, the terminal device includes:

a determining module, configured to determine a control resource set, where the control resource set is a time-frequency resource set that is allowed to send a control channel on a downlink transmission resource, where the size of the control resource set is M times N, and the N is one a number of control channel basic units included in the control channel element; the N and the M are positive integers greater than or equal to 1;

And a blind detection module, configured to blindly check, on the control resource set, control information sent by the network device by using the control channel.
The terminal device according to claim 25, wherein the starting position of the control resource set in the frequency domain is a multiple of the N.
The terminal device according to claim 25 or 26, wherein said M is a multiple of a minimum value of a convergence level of all control channels transmitted on said set of control resources.
The terminal device according to any one of claims 25 to 27, wherein the blind detection module is configured to blindly check a network device on the control resource set according to a resource mapping manner of the control channel. Control information sent by the control channel.
The terminal device according to claim 28, characterized in that

The blind detection module is specifically configured to: when the resource mapping manner of the control channel is a continuous resource mapping manner, the width of the two control channel elements adjacent to each mapping order in the frequency domain is Controlling, by the set of control resources, the control information sent by the network device through the control channel;

The width of the two control channel elements adjacent to each other in the mapping sequence is: a multiple of a width occupied by the control channel element in the frequency domain, or a control of the control channel element in the frequency domain. The multiple of the width occupied by the channel base unit binding.
The terminal device according to claim 29, wherein the two control channel elements adjacent to any two mapping orders are different in width in the frequency domain.
The terminal device according to claim 28, characterized in that

The blind detection module is specifically configured to: when the resource mapping mode of the control channel is a distributed resource mapping mode, the basic unit of the two control channels adjacent to each other on the control channel element is bound to the frequency Width of the interval on the domain, blindly detecting, on the set of control resources, control information sent by the network device through the control channel;

The control unit basic unit binding includes at least one control channel basic unit continuously mapped in the frequency domain; and the two control channel basic units adjacent to the mapping order on the control channel element are bound in the frequency domain. Width: a multiple of the width of the control channel element occupied in the frequency domain, or a multiple of the width of the control channel element occupied by a control channel base unit in the frequency domain.
The terminal device according to claim 31, wherein two control channel basic units adjacent to any two mapping orders on the control channel element are bound, and the widths of the intervals in the frequency domain are different.