CN108811108B

CN108811108B - Control channel sending method, terminal equipment and network equipment

Info

Publication number: CN108811108B
Application number: CN201710309847.1A
Authority: CN
Inventors: 薛丽霞; 张永平; 陈铮
Original assignee: Weifang Huarui Network Co Ltd
Current assignee: Guangdong Gaohang Intellectual Property Operation Co ltd; Weifang Huarui Network Co ltd
Priority date: 2017-05-04
Filing date: 2017-05-04
Publication date: 2020-11-24
Anticipated expiration: 2037-05-04
Also published as: CN108811108A; WO2018202000A1

Abstract

The application provides a sending method of a control channel, a terminal device and a network device, wherein the method comprises the following steps: the network equipment determines a control resource set; the control resource set is a time-frequency resource set which allows a control channel to be sent on downlink transmission resources, the size of the control resource set is M times of N, and N is the number of control channel basic units included in one control channel element; the N and the M are both positive integers which are more 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. According to the sending method of the control channel, the terminal equipment and the network equipment, the control resource set is set, so that the network equipment can send the control information borne on the control channel to the terminal equipment on the control resource set, the terminal equipment can only blindly check the sent control information on the control resource set, and the efficiency of blindly checking the control channel by the terminal equipment is improved.

Description

Control channel sending method, terminal equipment and network equipment

Technical Field

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

Background

In the New air interface (NR) standard of the 5G communication system, downlink transmission resources are divided into a control region and a data region. The control region is used for transmitting a control channel, and the data region is used for transmitting a data channel. The control information carried by the control channel includes a frequency domain position of a Resource Block (RB) used for indicating a data channel in a data region, and the data channel is used for carrying downlink data or uplink data.

In order to improve the efficiency of blind detection of a control channel by a terminal device, the NR standard proposes a concept of a control resource set (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 the base station determines the control resource set for transmitting the control channel in the control area of the downlink transmission resource is an urgent problem to be solved.

Disclosure of Invention

The application provides a sending method of a control channel, a terminal device and a network device, which are used for solving the problem that a base station determines a control resource set for sending the control channel.

In a first aspect, the present application provides a method for transmitting a control channel, including:

the network equipment determines a control resource set; the control resource set is a time-frequency resource set which allows a control channel to be sent on downlink transmission resources, the size of the control resource set is M times of N, and N is the number of control channel basic units included in one control channel element; wherein both N and M are positive integers greater than or equal to 1;

and the network equipment sends the control information loaded on the control channel to the terminal equipment on the control resource set.

By the method for sending the control channel provided by the first aspect, the network device can send the control information carried on the control channel to the terminal device on the control resource set by setting the control resource set, so that the terminal device can blind-check the sent control information only on the control resource set, and the efficiency of blind-checking the control channel by the terminal device is improved.

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

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

In one possible design, the sending, by the network device, the control information carried on the control channel to the terminal device on the set of control resources includes:

the network equipment selects a control channel basic unit for mapping the control channel in the control resource set according to the resource mapping mode of the control channel; the control channel is transmitted over the set of control resources using at least one control channel element, each of the control channel elements comprising at least one control channel element;

and the network equipment sends the control information to the terminal equipment on a control channel basic unit for mapping the control channel.

In one possible design, the selecting, by the network device, a control channel basic unit for mapping the control channel from the control resource set according to a resource mapping manner of the control channel includes:

when the resource mapping mode of the control channel is a continuous resource mapping mode, the network device selects a control channel basic unit for mapping the control channel from the control resource set according to the interval width of two adjacent control channel elements in each mapping sequence on the frequency domain;

wherein, the interval width of two control channel elements adjacent to each other in the mapping sequence on the frequency domain is: the control channel element occupies a multiple of the width in the frequency domain, or the control channel element occupies a multiple of the width in one control channel basic unit binding in the frequency domain.

By setting a resource mapping mode of two adjacent CCEs in a mapping sequence on a frequency domain, the method for transmitting the control channel provided by the possible design enables the network equipment to adopt flexible and diverse CCE-to-REG resource mapping modes, performs resource mapping on the control channel on a control resource set, and transmits the control channel to the terminal equipment.

In one possible design, any two control channel elements that are sequentially adjacent to each other are mapped with different spacing widths in the frequency domain.

By the method for sending the control channel provided by the possible design, the network equipment can adopt flexible and diverse CCE-to-REG resource mapping modes, and the mode for carrying out resource mapping on the control channel on the control resource set is more flexible and diverse.

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

when the resource mapping mode of the control channel is a distributed resource mapping mode, the network device selects a control channel basic unit for mapping the control channel in the control resource set according to the width of the interval between two control channel basic units which are adjacent to each other in the mapping sequence on each control channel element and bound on the frequency domain;

wherein the control channel elementary unit bundle includes at least one control channel elementary unit mapped continuously on a frequency domain; two control channel basic units which are adjacent in sequence are mapped on the control channel element and bound to the interval width on the frequency domain: the control channel element occupies a multiple of the width in the frequency domain, or the control channel element occupies a multiple of the width in one control channel basic unit binding in the frequency domain.

According to the sending method of the control channel provided by the possible design, by setting a resource mapping mode of two adjacent REG bundling in the mapping sequence on the same CCE on a frequency domain, the network equipment can adopt flexible and various CCE-to-REG resource mapping modes, perform resource mapping on the control channel on a control resource set and send the control channel to the terminal equipment, and on the basis of keeping the flexibility of the CCE-to-REG resource mapping mode, the blind detection times of the terminal equipment are reduced by reducing the resource mapping positions, so that the blind detection complexity of the terminal equipment is reduced. In one possible design, any two control channel basic units that are adjacent to each other in the mapping sequence on the control channel element are bound, and the intervals are different in width in the frequency domain.

In a second aspect, the present application provides a method for transmitting a control channel, including:

the terminal equipment determines a control resource set; the control resource set is a time-frequency resource set which allows a control channel to be sent on downlink transmission resources, the size of the control resource set is M times of N, and N is the number of control channel basic units included in one control channel element; wherein both N and M are positive integers greater than or equal to 1;

and the terminal equipment blindly detects the control information sent by the network equipment through the control channel on the control resource set.

In one possible design, the blind detection, by the terminal device, of the control information sent by the network device through the control channel on the set of control resources includes:

and the terminal equipment blindly detects the control information sent by the network equipment through the control channel on the control resource set according to the resource mapping mode of the control channel.

In a possible design, the blind-detecting, by the terminal device, 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 includes:

when the resource mapping mode of the control channel is a continuous resource mapping mode, the terminal device blindly detects control information sent by the network device through the control channel on the control resource set according to the interval width of two adjacent control channel elements in each mapping sequence on a frequency domain;

when the resource mapping mode of the control channel is a distributed resource mapping mode, the terminal device performs blind detection on the control information sent by the network device through the control channel on the control resource set according to the width of the interval between two control channel basic units which are adjacent in the mapping sequence on each control channel element and bound on the frequency domain;

In one possible design, any two control channel basic units that are adjacent to each other in the mapping sequence on the control channel element are bound, and the intervals are different in width in the frequency domain.

The beneficial effects of the transmission method for the control channel provided by the possible designs of the second aspect and the second aspect may refer to the beneficial effects brought by the possible designs of the first aspect and the first aspect, and are not described herein again.

In a third aspect, the present application provides a network device, including:

a determining module for determining a set of control resources; the control resource set is a time-frequency resource set which allows a control channel to be sent on downlink transmission resources, the size of the control resource set is M times of N, and N is the number of control channel basic units included in one control channel element; wherein both N and M are positive integers greater than or equal to 1;

and the sending module is used for sending the control information loaded on the control channel to the terminal equipment on the control resource set.

In one possible design, the sending module includes:

a selecting unit, configured to select a control channel basic unit for mapping the control channel from the control resource set according to a resource mapping manner of the control channel; the control channel is transmitted over the set of control resources using at least one control channel element, each of the control channel elements comprising at least one control channel element;

a sending unit, configured to send the control information to the terminal device on a control channel basic unit for mapping 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, select, in the control resource set, a control channel basic unit for mapping the control channel according to a width of an interval between two adjacent control channel elements in each mapping order in a frequency domain;

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, select, in the control resource set, a control channel basic unit for mapping the control channel according to a width of a space between two control channel basic units that are adjacent in a mapping order on each control channel element and are bound in a frequency domain;

The beneficial effects of the network device provided by the possible designs of the third aspect and the third aspect may refer to the beneficial effects brought by the possible designs of the first aspect and the first aspect, and are not described herein again.

In a fourth aspect, the present application provides a terminal device, including:

and the blind detection module is used for blind detecting the control information sent by the network equipment through the control channel on the control resource set.

In a possible design, the blind detection module is specifically configured to blind detect, on the set of control resources, 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, blind detect, on the control resource set, control information sent by the network device through the control channel according to a width of an interval between two adjacent control channel elements in each mapping order in a frequency domain;

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, blind detect, on the set of control resources, control information sent by the network device through the control channel according to a width of an interval between two control channel basic units that are adjacent in a mapping sequence on each control channel element and are bound in a frequency domain;

The beneficial effects of the terminal device provided by the possible designs of the fourth aspect and the fourth aspect may refer to the beneficial effects brought by the possible designs of the second aspect and the second aspect, and are not described herein again.

In a fifth aspect, the present application provides a network device, comprising: a processor, a memory, a receiver, a transmitter; the receiver and the transmitter are both coupled to the processor, the processor controlling the receiving action of the receiver, the processor controlling the transmitting action of the transmitter;

wherein the memory is to store computer executable program code, the program code comprising instructions; the instructions, when executed by the processor, cause the network device to perform the method of transmitting a control channel as provided by the first aspect and each possible design of the first aspect.

The beneficial effects of the network device provided in the fifth aspect may refer to the beneficial effects brought by the possible designs of the first aspect and the first aspect, and are not described herein again.

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

wherein the memory is to store computer executable program code, the program code comprising instructions; the instructions, when executed by the processor, cause the terminal device to perform the method of transmitting a control channel as provided by the second aspect and possible designs of the second aspect.

The beneficial effects of the terminal device provided by the sixth aspect may refer to the beneficial effects brought by the possible designs of the second aspect and the second aspect, and 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 first aspect above.

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 second aspect above.

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 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, which, 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, which, when run on a computer, cause the computer to perform the method of the second aspect described above.

According to the sending method of the control channel, the terminal equipment and the network equipment, the control resource set is set, so that the network equipment can send the control information borne on the control channel to the terminal equipment on the control resource set, the terminal equipment can only blindly check the sent control information on the control resource set, and the efficiency of blindly checking the control channel by the terminal equipment is improved.

Drawings

Fig. 1 is a block diagram of a communication system to which the present application relates;

FIG. 2 is a diagram illustrating downlink system bandwidth;

fig. 3 is a diagram illustrating a downlink transmission resource;

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

FIG. 5 is a schematic diagram of a REG;

fig. 6 is a signaling flowchart of another method for transmitting a control channel according to the present application;

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

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

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

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

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

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

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

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

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

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

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

fig. 18 is a schematic structural diagram of a network device provided in the present application;

fig. 19 is a schematic structural diagram of another network device provided in the present application;

fig. 20 is a schematic structural diagram of a terminal device provided in the present application;

fig. 21 is a schematic structural diagram of another network device provided in the present application;

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

fig. 23 is a block diagram of a structure of a terminal device applied for providing a mobile phone.

Detailed Description

In the present application, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

It should be understood that although the terms first and second may be used in this application to describe REGs, 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, and similarly, the second REG may also be referred to as a first REG without departing from the scope of the embodiments of the present invention.

Fig. 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 suitable for the communication system shown in fig. 1, and the communication system may be an LTE communication system or another future communication system, which is not limited herein. As shown in fig. 1, the communication system includes: network equipment and terminal equipment. Wherein the network device and the terminal device may communicate via one or more air interface technologies.

A network device: which may be a base station or an access point, or may refer to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the Base Station may be a Base Transceiver Station (BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB, eNodeB) in Long Term Evolution (Long Term Evolution, LTE), a relay Station, an Access point, a Base Station in a future 5G network, or the like, which is not limited herein.

The terminal equipment: which may be wireless or wireline, and which may be a device providing voice and/or other traffic data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN), which may exchange language and/or data with the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

Taking 5G communication system as an example, in the NR standard of 5G communication system, downlink transmission resources are represented by the entire downlink system bandwidth in the frequency domain

Frequency division by several orthogonal frequencies in time domainAn Orthogonal Frequency Division Multiplexing (OFDM) symbol (e.g., 7 or 14 OFDM symbols). Fig. 2 is a schematic diagram of a downlink system bandwidth. As shown in figure 2 of the drawings, in which,

the basic unit of (a) is a Resource Block (RB). Where each RB consists 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 grid on the Resource grid of RBs shown in fig. 2 is referred to as a Resource Element (RE), and each RE contains one subcarrier within one OFDM symbol.

Fig. 3 is a diagram illustrating a downlink transmission resource. As shown in fig. 3, in the present application, a downlink transmission resource is divided into a control region and a data region in a time domain. That is, both the control region and the data region are in the Frequency domain (Frequency) the entire downlink system bandwidth

But consists of different Time domain symbols in the Time domain (Time). It should be noted that, in all the following drawings, the time domain is represented by time, and the frequency domain is represented by frequency, which are not explained one by one.

The control region is used for transmitting a control channel, and the data region is used for transmitting a data channel. The control information carried by the control channel is used to indicate the frequency domain position of the RB used by the data channel in the data region (i.e., the resource allocation information of the data channel), and the data channel is used to carry downlink data or uplink data. Here, the Control Channel may be, for example, a Physical Downlink Control Channel (PDCCH), and the Control Information carried by the Control Channel may be, for example, (DCI). The data Channel may be, for example, a Physical Downlink Shared Channel (PDSCH).

In order to improve the efficiency of blind detection of a control channel by a terminal device, the NR standard proposes a concept of a control resource set (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 downlink transmission resources into which 2 control resource sets (control resource set1 and control resource set2) are divided for a terminal device on a control area. As shown in fig. 3, the network device may transmit the control channel to the terminal device on control resource set1, or may transmit the control channel to the terminal device on control resource set 2.

Therefore, in the control area of the downlink transmission resource, how the network device determines to send the control resource set of the control channel is an urgent problem to be solved.

The method for sending the control channel aims to solve the technical problem of how to send the control channel by network equipment. The technical solution of the present application is explained in detail by some embodiments below. The following several embodiments may be combined with each other and may not be described in detail in some embodiments for the same or similar concepts or processes.

Fig. 4 is a signaling flowchart of a method for sending a control channel according to the present application. The present embodiments relate to a process for a network device to transmit a control channel on a set of control resources. As shown in fig. 4, the method may include:

s101, the network equipment determines a control resource set.

Specifically, the control resource set is a time-frequency resource set allowing a control channel to be sent on a downlink transmission resource. In this application, the control resource set includes resources at the granularity of a control channel basic unit. The control channel basic unit may be, for example, a Resource Element Group (REG). That is, the control resource set is composed of a plurality of control channel basic units. However, it will be understood by those skilled in the art that the above-described control channel basic unit is not limited thereto.

In the NR standard, a control channel may be transmitted using one or more CCEs on a set of control resources. In this embodiment, taking the number of Control Channel basic Elements included in one Control Channel Element (CCE) as N as an example, the size of the Control resource set may be M times of N. Wherein N and M are both positive integers greater than or equal to 1.

For example, assume that the above-mentioned one CCE includes 6 control channel basic elements, i.e., N is 6. The size of the above-mentioned control resource set may be M times 6. Taking M as 3 as an example, the size of the 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 present application, M may be a multiple of a minimum value of aggregation levels of all control channels transmitted on the control resource set. For example: taking an example that the network device sends 3 control channels to the terminal device on the control resource set, respectively, wherein the aggregation level adopted by the network device when sending the control channel 1 to the terminal device is 2, the aggregation level adopted by the network device when sending the control channel 2 to the terminal device is 4, and the aggregation level adopted by the network device when sending the control channel 3 to the terminal device is 8. Then in this scenario, the minimum value of the aggregation level of all control channels sent on the set of control resources is 2, i.e., M above may be a multiple of 2.

In some embodiments, M may also be a product of a minimum value of aggregation levels of all control channels transmitted on the control resource set and a preset coefficient, where the preset coefficient may be a positive integer greater than 1, or the like. Alternatively, M may be a maximum value of the aggregation levels of all the control channels transmitted on the control resource set, or M may also be a product of the maximum value of the aggregation levels of all the control channels transmitted on the control resource set and a preset coefficient. Alternatively, M may be a convergence level of any control channel transmitted on the control resource set, or M may also be a product of the convergence level of any control channel transmitted on the control resource set and a preset coefficient.

Optionally, the starting position of the control resource set in the frequency domain may be preconfigured, or may be a multiple of N. That is, the resource location where the first control channel basic unit of the control resource set on the frequency domain is located can be divided by N. For example: taking N as 6 as an example, the resource location of the first control channel basic unit of the control resource set in the frequency domain can be divided by 6.

S102, the network device sends control information loaded on a control channel to the terminal device on the control resource set.

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

S103, the terminal device determines a control resource set.

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

The manner in which the terminal device determines the control resource set may refer to the manner in which the network device determines the control resource set in S101, which is not described again.

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

Specifically, the terminal device may determine, according to the determined control resource set, a position of the control resource set in a control region of the downlink transmission resource, so as to blindly detect the control information sent by the network device at the position.

For the implementation manner of the blind detection of the terminal device, reference may be made to the prior art, which is not described herein again.

According to the sending method of the control channel, the control information borne on the control channel can be sent to the terminal equipment by the network equipment on the control resource set through setting the control resource set, so that the terminal equipment can only blindly check the sent control information on the control resource set, and the efficiency of blindly checking the control channel by the terminal equipment is improved.

In the NR standard, taking a control channel basic unit as a Resource Element Group (REG) as an example, a control channel may be transmitted on a control Resource set by using one or more CCEs. The plurality of CCEs referred to herein may be, for example, 2, 4 or 8 CCEs. Wherein one CCE consists of a plurality of REGs, for example, one CCE consists of 4 REGs or 6 REGs. FIG. 5 is a schematic diagram of a REG. As shown in fig. 5, each REG consists of 12 consecutive subcarriers in the Frequency domain and one Orthogonal Frequency Division Multiplexing (OFDM) symbol in the time domain, i.e., 12 consecutive REs in the Frequency domain. That is, each REG occupies the same bandwidth in the frequency domain as one RB. In other words, if an RB of the control resource set occupies 12 subcarriers in the frequency domain and occupies 2 OFDM symbol sets in the time domain, for 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 network device needs to perform resource mapping from CCE to REG on a control resource set corresponding to the terminal device. Currently, NR supports several CCE to REG resource mapping approaches as follows: a continuous resource mapping mode (Localized), a Distributed resource mapping mode (Distributed), a Frequency domain-first, and a Time domain-first. When CCE to REG resource mapping is performed using Localized, REGs belonging to the same CCE are mapped continuously in the frequency domain of the downlink transmission resource. When CCE to REG resource mapping is performed using Distributed, REGs belonging to the same CCE are discretely mapped in the frequency domain of the downlink transmission resource. When Frequency-first is used for CCE-to-REG resource mapping, the mapping sequence of REGs belonging to the same CCE on downlink transmission resources is Frequency domain first and time domain later. When the Time-first is used for resource mapping from CCE to REG, the mapping sequence of the REG belonging to the same CCE on the downlink transmission resource is that the Time domain frequency domain is first and then the frequency domain is second. In addition, the above several CCE to REG resource mapping manners support REG bundling in both time and frequency domains, where each REG bundling includes multiple REGs belonging to the same CCE. When the CCE-to-REG resource mapping is performed on the control channel, all REGs of one REG bundling in the frequency domain are mapped continuously in the frequency domain of the downlink transmission resource, and all REGs of one REG bundling in the time domain are mapped continuously in the time domain of the downlink transmission resource.

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

s201, the network equipment selects a control channel basic unit for mapping the control channel in the control resource set according to the resource mapping mode of the control channel.

In this embodiment, the Control Channel transmitted on the Control resource set may be, for example, a Physical Downlink Control Channel (PDCCH). The control channel may be transmitted using at least one CCE over a set of control resources. Wherein each CCE includes at least one REG, e.g.: each CCE may include 4 REGs or 6 REGs. And each CCE is subjected to resource mapping on a frequency domain by taking REG bundling as a unit. That is, all REGs per REG bundling are mapped consecutively in the frequency domain.

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

the first mode is as follows: when the resource mapping mode of the control channel is a continuous resource mapping mode, the network device selects the REG for mapping the control channel in the control resource set according to the interval width of two adjacent CCEs in each mapping sequence on the frequency domain. The interval width of two CCEs adjacent to each other in the mapping sequence on the frequency domain is as follows: a multiple of the width occupied by a CCE in the frequency domain, or a multiple of the width occupied by one REG bundling (REG bundling) of a CCE in the frequency domain.

The width of the interval between two CCEs adjacent to each other in the mapping order may be the width of the interval between the start points of the two CCEs, the width of the interval from the end point of one CCE to the start point of another CCE, the width of the interval between the end points of the two CCEs, or the like. The application document describes the interval width of two CCEs adjacent to each other in the mapping order in the frequency domain according to the interval width from the end point of one CCE to the start point of the other CCE.

The network device may perform resource mapping on REGs mapping two CCEs adjacent in the mapping order at frequency domain positions spaced by a width "multiple of the width occupied by the CCEs". Alternatively, the network device may perform resource mapping on REGs of two CCEs adjacent in mapping order at frequency domain positions spaced by a width of "multiple of the width occupied by one REG bundling of a CCE in the frequency domain".

Wherein, the width occupied by the CCE is a width occupied by a plurality of REGs included in one CCE in total in a frequency domain. For example: taking an example where one CCE includes 6 REGs, the width occupied by one CCE is the width occupied by 6 frequency-domain contiguous REGs. 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 one REG bundling includes 1 REG, the width occupied by one REG bundling is the width occupied by one REG. When one REG bundling includes 3 REGs, the width occupied by one REG bundling is the width occupied by 3 frequency-domain contiguous REGs.

It should be noted that: of the CCEs used in the control channel, any two CCEs adjacent to each other in the mapping order have the same or different spacing widths in the frequency domain. Taking the multiple X of the occupied width of the CCEs as an example, the width of the interval between any two CCEs adjacent to each other in the mapping order in the frequency domain is X times, or the width of the interval between two CCEs adjacent to each other in one mapping order in the frequency domain is X, and the width of the interval between two CCEs adjacent to each other in the other mapping order in the frequency domain is X +1 times.

The second mode is as follows: when the resource mapping mode of the control channel is a distributed resource mapping mode, the network equipment selects the REG for mapping the control channel in the control resource set according to the interval width of two adjacent REG bundling on each CCE in the mapping sequence on the frequency domain; wherein the REG bundling binding includes at least one REG mapped continuously on the frequency domain; two sequentially adjacent REG bundling are mapped on the CCE with the interval width on the frequency domain: a multiple of the width occupied by a CCE in the frequency domain, or a multiple of the width occupied by one REG bundling binding of a CCE in the frequency domain.

The width of the interval between two adjacent REG bundling in the mapping order in the frequency domain may be the width of the interval between the start points of the two REG bundling, the width of the interval from the end point of one REG bundling to the start point of another REG bundling, or the width of the interval between the end points of the two REG bundling. The document of the present application describes the interval width of two adjacent REG bundling in the mapping order in the frequency domain according to the interval width between the end point of one REG bundling and the start point of another REG bundling.

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

It should be noted that: in the CCEs used by the control channel, any two REG bundling with adjacent mapping sequences on the same CCE have the same or different interval widths in the frequency domain. Taking the multiple Y of the CCE occupation width as an example, the interval width of two REG bundling adjacent to any two mapping sequences in the frequency domain is Y times, or the interval width of two REG bundling adjacent to one mapping sequence in the frequency domain is Y, and the interval width of two REG bundling adjacent to another mapping sequence in the frequency domain is Y +1 times.

S202, the network equipment sends control information to the terminal equipment on the control channel basic unit of the mapping control channel.

For the way that the network device sends the control information to the terminal device on the control channel basic unit of the mapping control channel, reference may be made to the prior art, which is not described herein again.

S203, 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 mode of the control channel.

Specifically, when the terminal device performs blind detection on the control information sent by the network device on the control resource set according to the resource mapping mode of the control channel, the blind detection may be performed based on the following two modes:

the first mode is as follows: and when the resource mapping mode of the control channel is a continuous resource mapping mode, the terminal equipment blindly detects the control information sent by the network equipment through the control channel on the control resource set according to the interval width of two adjacent control channel elements in each mapping sequence on the frequency domain.

That is, the terminal device may blind-detect two CCEs that are sequentially adjacent to each other at frequency domain positions spaced by a width of "multiple of the width occupied by the CCEs". Or, the terminal device may blindly detect two CCEs adjacent in the mapping order at a frequency domain position spaced by a width that is a multiple of a width occupied by one REG bundling of the CCEs in the frequency domain.

The second mode is as follows: when the resource mapping mode of the control channel is a distributed resource mapping mode, the terminal device binds two control channel basic units which are adjacent in the mapping sequence on each control channel element in the interval width on the frequency domain, and blindly detects the control information sent by the network device through the control channel on the control resource set.

That is to say, the terminal device may blindly detect two REG bundling mapped sequentially adjacent to the same CCE at the frequency domain position spaced by the width of "multiple of the width occupied by the CCE. Or, the terminal device may blindly detect two REG bundling sequentially adjacent to each other mapped on the same CCE at a frequency domain position spaced by a width "multiple of a width occupied by one REG bundling in the frequency domain by the CCE.

According to the method for sending the control channel, the resource mapping mode of two CCEs with adjacent mapping sequences on the frequency domain is set, and the resource mapping mode of two REG bundling with adjacent mapping sequences on the same CCE on the frequency domain is set, so that the network equipment can adopt flexible and various CCE-to-REG resource mapping modes, perform resource mapping on the control channel on a control resource set and send the control channel to the terminal equipment, and on the basis of keeping the flexibility of the CCE-to-REG resource mapping modes, the blind detection times of the terminal equipment are reduced by reducing the positions of resource mapping, and the blind detection complexity of the terminal equipment is reduced.

The following describes a detailed description of a method for transmitting a control channel according to the present application with reference to a specific example.

Example one, take the example that the control channel is transmitted using 2 CCEs, where each CCE includes 6 REGs. The 2 CCEs are CCE0 and CCE1, respectively. The indices of the 6 REGs included in the CCE0 are: 0. 1, 2, 3, 4 and 5. The indices of the 6 REGs included in the CCE1 are: 6. 7, 8, 9, 10 and 11.

Fig. 7 is a schematic resource mapping diagram of a control channel according to the present application. Fig. 8 is a schematic resource mapping diagram of another control channel provided in the present application. In fig. 7 and 8, each square on the time-frequency resource represents an 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 to map the REG of the control channel.

As shown in fig. 7 and 8, when the resource mapping manner of the control channel is a continuous resource mapping manner (Localized) and a Frequency-domain-first resource mapping manner (Frequency-first), the size (size) of one REG bundling of a CCE in the Frequency domain is 6, and the control channel occupies 1 OFDM symbol in the time domain, it indicates that the mapping order of REGs of the same CCE on the downlink transmission resource is Frequency domain first and time domain later, and REGs belonging to the same CCE are continuously mapped in the Frequency domain of the downlink transmission resource. The network device may perform resource mapping on REGs mapping two CCEs adjacent in the mapping order at frequency domain positions spaced by a width of "multiple of the width occupied by the CCEs". Or, the network device performs resource mapping on REGs of two CCEs adjacent in mapping order at frequency domain positions spaced by a width of multiple of the width occupied by one REG bundling of the CCEs in the frequency domain.

Taking the example that the spacing width of the CCE0 and the CCE1 in the frequency domain is a multiple of the width occupied by the CCEs, the multiple may be 0 or a positive integer greater than or equal to 1. When the multiple is 0, the network device may map the CCE0 and the CCE1 in a contiguous mapping manner over the frequency domain. That is, the interval between CCE0 and CCE1 in the frequency domain is 0, and specifically, the mapping method shown in fig. 7 can be referred to. When the multiple is a positive integer greater than or equal to 1, taking 2 as an example, after the network device maps CCE0 and CCE1 in the frequency domain, CCE0 and CCE1 may be separated by a width occupied by 2 CCEs in the frequency domain. That is, CCE0 and CCE1 are separated by 12 REGs in the frequency domain, and specifically refer to the mapping scheme shown in fig. 8.

It should be noted that, although the present example is described by taking two CCEs as an example. When the control channel is transmitted using more than 3 CCEs, the widths of intervals between any two CCEs adjacent to each other in the mapping order in the frequency domain are the same or different. Taking an example that the control channel uses 3 CCEs for transmission, where the 3 CCEs are CCE0, CCE1 and CCE2, respectively, after the network device performs resource mapping on CCE0, CCE1 and CCE2 by using the above-described method, the CCE0 and CCE1 may have the same or different interval widths in the frequency domain, and the CCE1 and CCE2 may have the same or different interval widths in the frequency domain. For example: the CCE0 is spaced from the CCE1 by a width occupied by 2 CCEs in the frequency domain, and the CCE1 is spaced from the CCE2 by a width occupied by 3 CCEs in the frequency domain.

Example two, take the example that the control channel is transmitted using 2 CCEs, where each CCE includes 6 REGs. The 2 CCEs are CCE0 and CCE1, respectively. The indices of the 6 REGs included in the CCE0 are: 0. 1, 2, 3, 4 and 5. The indices of the 6 REGs included in the CCE1 are: 6. 7, 8, 9, 10 and 11.

Fig. 9 is a schematic resource mapping diagram of another control channel provided in the present application. Fig. 10 is a schematic resource mapping diagram of another control channel provided in the present application. In fig. 9 and 10, each square on the time-frequency resource represents an 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 to map the REG of the control channel.

As shown in fig. 9 and 10, when the resource mapping manner of the control channel is a continuous resource mapping manner (Localized) and a Time-domain first resource mapping manner (Time-first), the size (size) of one REG bundling of a CCE in the frequency domain is 3, and the control channel occupies 2 OFDM symbols in the Time domain, it indicates that the mapping order of REGs of the same CCE on the downlink transmission resource is Time domain first and then frequency domain later, and REGs belonging to the same CCE are continuously mapped in the frequency domain of the downlink transmission resource. The network device may perform resource mapping on REGs mapping two CCEs adjacent in the mapping order at frequency domain positions spaced by a width of "multiple of the width occupied by the CCEs". Or, the network device performs resource mapping on REGs of two CCEs adjacent in mapping order at frequency domain positions spaced by a width of multiple of the width occupied by one REG bundling of the CCEs in the frequency domain.

Taking the example that the spacing width of the CCE0 and the CCE1 in the frequency domain is a multiple of the width occupied by the CCEs, the multiple may be 0 or a positive integer greater than or equal to 1. When the multiple is 0, the network device may map the CCE0 and the CCE1 in a contiguous mapping manner over the frequency domain. That is, the interval between CCE0 and CCE1 in the frequency domain is 0, and specifically, the mapping method shown in fig. 9 can be referred to. When the multiple is a positive integer greater than or equal to 1, taking 1 as an example, after the network device maps CCE0 and CCE1 in the frequency domain, CCE0 and CCE1 may be separated by a width occupied by 1 CCE in the frequency domain. That is, CCE0 and CCE1 are separated by 6 REGs in the frequency domain, which may be referred to as the mapping scheme shown in fig. 10.

Example three, take the example that the control channel is transmitted using 2 CCEs, where each CCE includes 6 REGs. The 2 CCEs are CCE0 and CCE1, respectively. The indices of the 6 REGs included in the CCE0 are: 0. 1, 2, 3, 4 and 5. The indices of the 6 REGs included in the CCE1 are: 6. 7, 8, 9, 10 and 11.

Fig. 11 is a schematic resource mapping diagram of another control channel provided in the present application. Fig. 12 is a schematic resource mapping diagram of another control channel provided in the present application. In fig. 11 and 12, each square on the time-frequency resource represents an 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 to map the REG of the control channel.

As shown in fig. 11 and 12, when the resource mapping manner of the control channel is a continuous resource mapping manner (Localized) and a Time-domain first resource mapping manner (Time-first), the size (size) of one REG bundling of a CCE in the frequency domain is 2, and the control channel occupies 3 OFDM symbols in the Time domain, it indicates that the mapping order of REGs of the same CCE on the downlink transmission resource is Time domain first and then frequency domain later, and REGs belonging to the same CCE are continuously mapped in the frequency domain of the downlink transmission resource. The network device may perform resource mapping on REGs mapping two CCEs adjacent in the mapping order at frequency domain positions spaced by a width of "multiple of the width occupied by the CCEs". Or, the network device performs resource mapping on REGs of two CCEs adjacent in mapping order at frequency domain positions spaced by a width of multiple of the width occupied by one REG bundling of the CCEs in the frequency domain.

Taking the example that the spacing width of the CCE0 and the CCE1 in the frequency domain is a multiple of the width occupied by the CCEs, the multiple may be 0 or a positive integer greater than or equal to 1. When the multiple is 0, the network device may map the CCE0 and the CCE1 in a contiguous mapping manner over the frequency domain. That is, the interval between CCE0 and CCE1 in the frequency domain is 0, and specifically, the mapping scheme shown in fig. 11 can be referred to. When the multiple is a positive integer greater than or equal to 1, taking 1 as an example, after the network device maps CCE0 and CCE1 in the frequency domain, CCE0 and CCE1 may be separated by a width occupied by 1 CCE in the frequency domain. That is, CCE0 and CCE1 are separated by 6 REGs in the frequency domain, which may be referred to as the mapping scheme shown in fig. 12.

Example four, take the case that the control channel is transmitted using 1 CCE, where the CCE includes 6 REGs. The indexes of the 6 REGs are respectively: 0. 1, 2, 3, 4 and 5.

Fig. 13 is a schematic resource mapping diagram of another control channel provided in the present application. As shown in fig. 13, when the resource mapping manner of the control channel is a Distributed resource mapping manner (Distributed) and a Frequency domain first resource mapping manner (Frequency-first), the size (size) of one REG bundling of a CCE in the Frequency domain is 2, and the control channel occupies 1 OFDM symbol in the time domain, it indicates that the mapping order of REGs of the same CCE on the downlink transmission resource is Frequency domain first and time domain later, and different REG bundling belonging to the same CCE is discretely mapped in the Frequency domain of the downlink transmission resource. In this example, the CCE includes 6 REGs, where REGs with

indices

0 and 1 belong to REG bundling0, REGs with

indices

2 and 3 belong to REG bundling1, and REGs with

indices

4 and 5 belong to REG bundling 2. The network device may perform resource mapping on two REG bindings sequentially adjacent to the mapping on the CCE at a frequency domain position spaced by a width "multiple of the width occupied by the CCE". Or, the network device performs resource mapping on two REG bindings adjacent to the mapping sequence on the CCE at a frequency domain position with an interval of "multiple of the width occupied by one REG bundling of the CCE in the frequency domain".

It is emphasized that two REG bindings, which are sequentially adjacent to the mapping, as referred to herein, are to be understood as two REG bindings, which are sequentially adjacent to the mapping, are mapped in the frequency domain. In this example, since the control channel occupies 1 OFDM symbol in the time domain, two REGs that are sequentially adjacent to each other in the mapping order in the frequency domain are bound to REG bundling0 and REG bundling1, or REG bundling1 and REG bundling 2.

Taking the example that two REGs mapped on the same CCE and adjacent to each other in the mapping order are bound in the frequency domain and spaced apart by a multiple of the width occupied by the CCE, the multiple may be a positive integer greater than or equal to 1. Taking the multiple as 2 as an example, after the network device maps all REG bindings of the CCE in the frequency domain, two REG bindings that are sequentially adjacent to each other in the mapping order on the CCE may be separated by a width occupied by 2 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, which may specifically refer to the mapping manner shown in fig. 13.

It should be noted that, although this example has been described by taking as an example that two REG bundling adjacent to any two mapping sequences on the same CCE are spaced at the same width in the frequency domain, that is, the width of the interval between REG bundling0 and REG bundling1 in the frequency domain is the same as the width of the interval between REG bundling1 and REG bundling2 in the frequency domain. However, it can be understood by those skilled in the art that the interval width of any two adjacent REG bundling mapping sequences on the same CCE may also be different in the frequency domain. Continuing with the above example, for example: REG bundling0 and REG bundling1 are separated by a width occupied by 2 CCEs in the frequency domain, and REG bundling1 and REG bundling2 may be separated by a width occupied by 1 CCE in the frequency domain, or REG bundling1 and REG bundling2 may be separated by a width occupied by 3 CCEs in the frequency domain, etc.

Example five, take the example that the control channel is transmitted using 1 CCE, where the CCE includes 6 REGs. The indexes of the 6 REGs are respectively: 0. 1, 2, 3, 4 and 5.

Fig. 14 is a schematic resource mapping diagram of another control channel provided in the present application. As shown in fig. 14, when the resource mapping manner of the control channel is a Distributed resource mapping manner (Distributed) and a Frequency domain first resource mapping manner (Frequency-first), the size (size) of one REG bundling of a CCE in the Frequency domain is 3, and the control channel occupies 1 OFDM symbol in the time domain, it indicates that the mapping order of REGs of the same CCE on the downlink transmission resource is Frequency domain first and time domain later, and different REG bundling belonging to the same CCE is discretely mapped in the Frequency domain of the downlink transmission resource. In this example, the CCE includes 6 REGs, where REGs with

indices

0, 1, and 2 belong to REG bundling0, and REGs with

indices

3, 4, and 5 belong to REG bundling 1. The network device may perform resource mapping on two REG bindings sequentially adjacent to the mapping on the CCE at a frequency domain position spaced apart by a width "multiple of the width occupied by the CCE". Or, the network device performs resource mapping on two REG bindings adjacent to the mapping sequence on the CCE at a frequency domain position with an interval of "multiple of the width occupied by one REG bundling of the CCE in the frequency domain".

It is emphasized that two REG bindings, which are sequentially adjacent to the mapping, as referred to herein, are to be understood as two REG bindings, which are sequentially adjacent to the mapping, are mapped in the frequency domain. In this example, since the control channel occupies 1 OFDM symbol in the time domain, two REGs that are sequentially adjacent to each other in the mapping order in the frequency domain are bound as REG bundling0 and REG bundling 1.

Taking the example that two REGs mapped on the same CCE and adjacent to each other in the mapping order are bound in the frequency domain and spaced apart by a multiple of the width occupied by the CCE, the multiple may be a positive integer greater than or equal to 1. Taking the multiple as 1 as an example, after the network device maps all REG bindings of the CCE in the frequency domain, two REG bindings that are sequentially adjacent to each other in the mapping order on the CCE may be separated by a width occupied by 1 CCE. That is, the REG bundling0 and REG bundling1 are spaced by 6 REGs in the frequency domain, which may specifically refer to the mapping manner shown in fig. 14.

When the CCE includes 3 or more REG bundling, the CCE includes: REG bundling0, REG bundling1, REG bundling 2. The interval width of REG bundling0 and REG bundling1 in the frequency domain may be the same as or different from the interval width of REG bundling1 and REG bundling2 in the frequency domain, that is, the interval width of any two REG bundling adjacent to the mapping sequence on the same CCE is the same or different in the frequency domain. The implementation and principle are similar to those of the above example, and the description is omitted.

Example six, take the example that the control channel is transmitted using 1 CCE, where the CCE includes 6 REGs. The indexes of the 6 REGs are respectively: 0. 1, 2, 3, 4 and 5.

Fig. 15 is a schematic resource mapping diagram of another control channel provided in the present application. As shown in fig. 15, when the resource mapping manner of the control channel is a Distributed resource mapping manner (Distributed) and a Time domain first resource mapping manner (Time-first), the size (size) of one REG bundling of the CCE in the frequency domain is 1, and 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 resource is Time domain first and then frequency domain later, and different REG bundling belonging to the same CCE is discretely mapped in the frequency domain of the downlink transmission resource. In this example, the CCE includes 6 REGs, where REG with index 0 belongs to REG bundling0, REG with index 1 belongs to REG bundling1, REG with index 2 belongs to REG bundling2, REG with index 3 belongs to REG bundling3, REG with index 4 belongs to REG bundling4, and REG with index 5 belongs to REG bundling 5. The network device may perform resource mapping on two REG bindings sequentially adjacent to the mapping on the CCE at a frequency domain position spaced apart by a width "multiple of the width occupied by the CCE". Or, the network device performs resource mapping on two REG bindings adjacent to the mapping sequence on the CCE at a frequency domain position with an interval of "multiple of the width occupied by one REG bundling of the CCE in the frequency domain".

It is emphasized that two REG bindings, which are sequentially adjacent to the mapping, as referred to herein, are to be understood as two REG bindings, which are sequentially adjacent to the mapping, are mapped in the frequency domain. In this example, since the control channel occupies 2 OFDM symbols in the time domain, two REGs that are sequentially adjacent to each other in the mapping order in the frequency domain are bound as REG bundling0 and REG bundling2, REG bundling1 and REG bundling3, REG bundling2 and REG bundling4, REG bundling3 and REG bundling 5.

Taking the example that two REGs mapped on the same CCE and adjacent to each other in the mapping order are bound in the frequency domain and spaced apart by a multiple of the width occupied by the CCE, the multiple may be a positive integer greater than or equal to 1. Taking the multiple as 1 as an example, after the network device maps all REG bindings of the CCE in the frequency domain, two REG bindings that are sequentially adjacent to each other in the mapping order on the CCE may be separated by a width occupied by 1 CCE. For example, REG bundling0 and REG bundling2 may be spaced by 6 REGs in the frequency domain, specifically, see the mapping manner shown in fig. 15.

It should be noted that, although this example is described by taking as an example that two REG bundling adjacent to each other in the mapping sequence on the frequency domain on any two CCEs on the same CCE are spaced by the same width on the frequency domain, for example, the spacing widths of REG bundling0 and REG bundling2 on the frequency domain are the same as the spacing widths of REG bundling2 and REG bundling4 on the frequency domain. However, it can be understood by those skilled in the art that any two REG bundling that are sequentially adjacent to each other on the same CCE may have different interval widths in the frequency domain. Continuing with the above example, for example: REG bundling0 and REG bundling2 are separated by a width occupied by 2 CCEs in the frequency domain, 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 may be separated by a width occupied by 3 CCEs in the frequency domain, etc.

Example seven, take the example that the control channel is transmitted using 1 CCE, where the CCE includes 6 REGs. The indexes of the 6 REGs are respectively: 0. 1, 2, 3, 4 and 5.

Fig. 16 is a schematic resource mapping diagram of another control channel provided in the present application. As shown in fig. 16, when the resource mapping manner of the control channel is a Distributed resource mapping manner (Distributed) and a Time domain first resource mapping manner (Time-first), the size (size) of one REG bundling of the CCE in the frequency domain is 1, and 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 resource is Time domain first and then frequency domain later, and different REG bundling belonging to the same CCE is discretely mapped in the frequency domain of the downlink transmission resource. In this example, the CCE includes 6 REGs, where REG with index 0 belongs to REG bundling0, REG with index 1 belongs to REG bundling1, REG with index 2 belongs to REG bundling2, REG with index 3 belongs to REG bundling3, REG with index 4 belongs to REG bundling4, and REG with index 5 belongs to REG bundling 5. The network device may perform resource mapping on two REG bindings sequentially adjacent to the mapping on the CCE at a frequency domain position spaced apart by a width "multiple of the width occupied by the CCE". Or, the network device performs resource mapping on two REG bindings adjacent to the mapping sequence on the CCE at a frequency domain position with an interval of "multiple of the width occupied by one REG bundling of the CCE in the frequency domain".

It is emphasized that two REG bindings, which are sequentially adjacent to the mapping, as referred to herein, are to be understood as two REG bindings, which are sequentially adjacent to the mapping, are mapped in the frequency domain. In this example, since the control channel occupies 3 OFDM symbols in the time domain, two REGs that are sequentially adjacent to each other in the mapping order in the frequency domain are bound as REG bundling0 and REG bundling3, REG bundling1 and REG bundling4, REG bundling2 and REG bundling 5.

Taking the example that two REGs mapped on the same CCE and adjacent to each other in the mapping order are bound in the frequency domain and spaced apart by a multiple of the width occupied by the CCE, the multiple may be a positive integer greater than or equal to 1. Taking the multiple as 1 as an example, after the network device maps all REG bindings of the CCE in the frequency domain, two REG bindings that are sequentially adjacent to each other in the mapping order on the CCE may be separated by a width occupied by 1 CCE. For example, REG bundling0 and REG bundling3 may be spaced by 6 REGs in the frequency domain, specifically, see the mapping manner shown in fig. 16.

Example eight, take the example that the control channel is transmitted using 2 CCEs, where each CCE includes 6 REGs. The 2 CCEs are CCE0 and CCE1, respectively. The indices of the 6 REGs included in the CCE0 are: 0. 1, 2, 3, 4 and 5. The indices of the 6 REGs included in the CCE1 are: 6. 7, 8, 9, 10 and 11.

Fig. 17 is a schematic resource mapping diagram of another control channel provided in the present application. As shown in fig. 17, when the resource mapping manner of the control channel is a Distributed resource mapping manner (Distributed) and a Frequency domain first resource mapping manner (Frequency-first), the control channel resource set includes 2 CCEs, the size (size) of one REG mapping on the Frequency domain of each CCE is 3, and the control channel occupies 1 OFDM symbol on the time domain, it indicates that the mapping order of REGs of multiple CCEs on the downlink transmission resource is from the Frequency domain to the time domain, and different REG mappings belonging to the same CCE are discretely mapped on the Frequency domain of the downlink transmission resource. In this example, the CCE0 includes 6 REGs, where REGs with

indices

0, 1, 2 belong to REG bundling0, and REGs with

indices

3, 4, and 5 belong to REG bundling 1. The CCE1 includes 6 REGs, where REGs with

indices

6, 7, and 8 belong to REG bundling0, and REGs with

indices

9, 10, and 11 belong to REG bundling 1. The network device may resource map the two REG bindings of CCE0 and CCE1 at frequency domain locations spaced apart by a width that is a multiple of the width occupied by the CCE. Or, the network device performs resource mapping on two REG bindings of CCE0 and CCE1 at frequency domain positions spaced apart by a width that is a multiple of a width occupied by one REG bundling of the CCE in the frequency domain.

After mapping, the interval of different REG bindings for CCE0 and the interval of different REG highpoints for CCE1 are both widths that are "multiples of the width occupied by a CCE" or widths that are "multiples of the width occupied by one REG bundling for a CCE in the frequency domain".

In the control channel resource mapping diagrams shown in fig. 7 to fig. 17, the bandwidth of the control channel resource set (control resource set) is only one example, and the bandwidth of the control channel resource set in the present application is not limited thereto.

Fig. 18 is a schematic structural diagram of a network device provided in the present application. As shown in fig. 18, the network device may include: a determining module 11 and a sending module 12. Wherein the content of the first and second substances,

a determining module 11, configured to determine a control resource set; the control resource set is a time-frequency resource set which allows a control channel to be sent on downlink transmission resources, the size of the control resource set is M times of N, and N is the number of control channel basic units included in one control channel element; the N and the M are both positive integers which are more than or equal to 1; optionally, the starting position of the control resource set in the frequency domain is a multiple of N. Optionally, M is a multiple of a minimum value of aggregation levels of all control channels transmitted on the control resource set.

A sending module 12, configured to send, to the terminal device, the control information carried on the control channel on the control resource set.

The network device provided by the present application may execute the actions on the network device side in the foregoing method embodiments, and the implementation principle and technical effect are similar, which are not described herein again.

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

a selecting unit 121, configured to select a control channel basic unit for mapping the control channel from the control resource set according to a resource mapping manner of the control channel; the control channel is transmitted over the set of control resources using at least one control channel element, each of the control channel elements comprising at least one control channel element;

a sending unit 122, configured to send the control information to the terminal device on a control channel basic unit to which the control channel is mapped.

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, select, in the control resource set, a control channel basic unit for mapping the control channel according to a width of an interval between two adjacent control channel elements in each mapping order in a frequency domain; wherein, the interval width of two control channel elements adjacent to each other in the mapping sequence on the frequency domain is: the control channel element occupies a multiple of the width in the frequency domain, or the control channel element occupies a multiple of the width in one control channel basic unit binding in the frequency domain. Illustratively, any two control channel elements that are sequentially adjacent to each other are mapped with the same or different spacing widths in the frequency domain.

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 distributed resource mapping manner, select, in the control resource set, a control channel basic unit for mapping the control channel according to a width of a space between two control channel basic units that are adjacent in a mapping sequence on each control channel element and are bound in a frequency domain; wherein the control channel elementary unit bundle includes at least one control channel elementary unit mapped continuously on a frequency domain; two control channel basic units which are adjacent in sequence are mapped on the control channel element and bound to the interval width on the frequency domain: the control channel element occupies a multiple of the width in the frequency domain, or the control channel element occupies a multiple of the width in one control channel basic unit binding in the frequency domain. Illustratively, any two control channel basic units which are adjacent to each other in the mapping sequence on the control channel element are bound, and the intervals in the frequency domain have the same or different widths.

Fig. 20 is a schematic structural diagram of a terminal device provided in the present application. As shown in fig. 20, the terminal device may include: a determining module 21 and a blind detecting module 22. Wherein the content of the first and second substances,

a determining module 21, configured to determine a control resource set; the control resource set is a time-frequency resource set which allows a control channel to be sent on downlink transmission resources, the size of the control resource set is M times of N, and N is the number of control channel basic units included in one control channel element; the N and the M are both positive integers which are more than or equal to 1; optionally, the starting position of the control resource set in the frequency domain is a multiple of N. Optionally, M is a multiple of a minimum value of aggregation levels of all control channels transmitted on the control resource set.

A blind detection module 22, configured to blind detect, 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 blind detect, on the control resource set, control information sent by the network device through the control channel according to the resource mapping manner of the control channel.

For example, the blind detection module 22 is specifically configured to, when the resource mapping manner of the control channel is a continuous resource mapping manner, blind detect, on the control resource set, control information sent by the network device through the control channel according to a width of an interval between two adjacent control channel elements in each mapping order in a frequency domain; wherein, the interval width of two control channel elements adjacent to each other in the mapping sequence on the frequency domain is: the control channel element occupies a multiple of the width in the frequency domain, or the control channel element occupies a multiple of the width in one control channel basic unit binding in the frequency domain. Illustratively, any two control channel elements that are sequentially adjacent to each other are mapped with the same or different spacing 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, bind, according to the width of an interval between two control channel basic units that are adjacent in the mapping order on each control channel element, the control information sent by the network device through the control channel on the control resource set; wherein the control channel elementary unit bundle includes at least one control channel elementary unit mapped continuously on a frequency domain; two control channel basic units which are adjacent in sequence are mapped on the control channel element and bound to the interval width on the frequency domain: the control channel element occupies a multiple of the width in the frequency domain, or the control channel element occupies a multiple of the width in one control channel basic unit binding in the frequency domain. Illustratively, any two control channel basic units which are adjacent to each other in the mapping sequence on the control channel element are bound, and the intervals on the control channel element have the same or different widths.

The terminal device provided by the application can execute the actions of the terminal device side in the above method embodiments, and the implementation principle and technical effect are similar, which are not described herein again.

It should be noted that the above sending module may be a sender when actually implemented. The division of the determination module and the blind detection module is only a division of a logic function, and each module on one device can be wholly or partially integrated on one physical entity or can be physically separated in actual implementation. And these modules on one device may all be implemented in the form of software calls by processing elements; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the determining module may be a processing element that is separately set up, or may be implemented by being integrated into a chip of the above apparatus, or may be stored in a memory of the above apparatus in the form of program code, and a processing element of the above apparatus calls and executes the functions of the determining module. Other modules are implemented similarly. In addition, all or part of the modules on one device can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In the implementation, the steps of the method or the modules of the device can be implemented by hardware integrated logic circuits in a processor element or instructions in the 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 (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules on a device may be integrated together and implemented in the form of a system-on-a-chip (SOC).

Fig. 21 is a schematic structural diagram of another network device provided in the present application. As shown in fig. 21, the network device may include: a processor 31 (e.g., CPU), a memory 32, a receiver 33, a transmitter 34; both the receiver 33 and the transmitter 34 are coupled to the processor 31, the processor 31 controlling the receiving action of the receiver 33, the processor 31 controlling the transmitting action of the transmitter 34; the memory 32 may comprise 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 network device related to the present application may further include: a power supply 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 separate transceiving antennas on the terminal device. The communication bus 36 is used to implement communication connections between the elements. The communication port 37 is used for realizing connection and communication between the terminal device and other peripherals.

In the present application, the memory 32 is used for storing computer executable program code, which includes instructions; when the processor 31 executes the instruction, the instruction causes the network device to execute the actions of the network device side shown in the above method embodiments, which have similar implementation principles and technical effects, and are not described herein again.

Fig. 22 is a schematic structural diagram of another terminal device provided in the present application. As shown in fig. 22, the terminal device may include: a processor 41 (e.g., CPU), a memory 42, a receiver 43, a transmitter 44; both the receiver 43 and the transmitter 44 are coupled to the processor 41, the processor 41 controlling the receiving action of the receiver 43, the processor 41 controlling the transmitting action of the transmitter 44; the memory 42 may comprise 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 related to the present application may further include: a power supply 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 separate transceiving antennas on the terminal device. The communication bus 46 is used to enable communication connections between the elements. The communication port 47 is used for realizing connection and communication between the terminal device and other peripherals.

In the present application, the memory 42 is used for storing computer executable program code, which includes instructions; when the processor 41 executes the instruction, the instruction causes the terminal device to execute the actions on the terminal device side shown in the above method embodiments, which have similar implementation principles and technical effects, and are not described herein again.

As in the foregoing embodiment, the terminal device related to the present application may be a wireless terminal such as a mobile phone and a tablet computer, and therefore, taking the terminal device as a mobile phone as an example: fig. 23 is a block diagram of a structure of a terminal device applied for providing a mobile phone. Referring to fig. 23, the mobile phone may include: radio Frequency (RF) circuitry 1110, memory 1120, input unit 1130, display unit 1140, sensors 1150, audio circuitry 1160, wireless fidelity (WiFi) module 1170, processor 1180, and power supply 1190. Those skilled in the art will appreciate that the handset configuration shown in fig. 23 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile phone in detail with reference to fig. 23:

RF circuit 1110 may be used for receiving and transmitting signals during a message transmission or call, for example, receiving downlink information from a base station and then processing the received downlink information to processor 1180; in addition, the uplink data is transmitted to the base station. Typically, the RF circuitry includes, but is 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, the RF circuitry 1110 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), 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 may be used to store software programs and modules, and the processor 1180 may execute various functional applications and data processing of the mobile phone by operating the 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 program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 1120 may include high speed random access memory, and may 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 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 1130 may include a touch panel 1131 and other input devices 1132. Touch panel 1131, also referred to as a touch screen, can collect touch operations of a user on or near the touch panel 1131 (for example, operations of the user on or near touch panel 1131 by using any suitable object or accessory such as a finger or a stylus pen), and drive corresponding connection devices according to a preset program. Alternatively, the touch panel 1131 may include two parts, namely, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1180, and can receive and execute commands sent by the processor 1180. In addition, the touch panel 1131 can be implemented by using various types, such as resistive, capacitive, infrared, and surface acoustic wave. The input unit 1130 may include other input devices 1132 in addition to the touch panel 1131. In particular, other input devices 1132 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.

The display unit 1140 may be used to display information input by the user or information provided to the user and various menus of the cellular phone. The Display unit 1140 may include a Display panel 1141, and optionally, 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, touch panel 1131 can be overlaid on display panel 1141, and when touch operation is detected on or near touch panel 1131, the touch operation is transmitted to processor 1180 to determine the type of touch event, and then processor 1180 provides corresponding visual output on display panel 1141 according to the type of touch event. Although in fig. 10, the touch panel 1131 and the display panel 1141 are two independent components to implement the input and output functions of the mobile phone, in some embodiments, the touch panel 1131 and the display panel 1141 may be integrated to implement the input and output functions of the mobile phone.

The handset may also include at least one 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 ambient light, and the light sensor may turn off the display panel 1141 and/or the backlight when the mobile phone moves to the ear. As one type of motion sensor, the acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

Audio circuitry 1160, speaker 1161, and microphone 1162 may provide an audio interface between a user and a cell phone. The audio circuit 1160 may transmit the electrical signal converted from the received audio data to the speaker 1161, and convert the electrical signal into a sound signal for output by the speaker 1161; on the other hand, the microphone 1162 converts the collected sound signals into electrical signals, which are received by the audio circuit 1160 and converted into audio data, which are then processed by the audio data output processor 1180, and then transmitted to, for example, another cellular phone via the RF circuit 1110, or output to the memory 1120 for further processing.

WiFi belongs to short-distance wireless transmission technology, and the cell phone can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 1170, and provides wireless broadband internet access for the user. Although fig. 23 shows the WiFi module 1170, it is understood that it does not belong to the essential constitution of the handset, and may be omitted entirely as needed within the scope not changing the essence of the present application.

The processor 1180 is a control center of the mobile phone, and is connected to various parts of the whole mobile phone through various interfaces and lines, and executes various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 1120 and calling data stored in the memory 1120, thereby performing overall monitoring of the mobile phone. Optionally, processor 1180 may include one or more processing units; for example, the processor 1180 may integrate an application processor, which handles primarily the operating system, user interfaces, and applications, among others, and a modem processor, which handles primarily wireless communications. It will be appreciated that the modem processor described above may not be integrated within processor 1180.

The mobile phone further includes a power supply 1190 (e.g., a battery) for supplying power to each component, and optionally, the power supply may be logically connected to the processor 1180 through a power management system, so that functions of managing charging, discharging, power consumption management, and the like are implemented through the power management system.

The mobile phone may further include a camera 1200, which may be a front camera or a rear camera. Although not shown, the mobile phone may further include a bluetooth module, a GPS module, etc., which will not be described herein.

In this application, the processor 1180 included in the mobile phone may be configured to execute the embodiment of the method for sending the control channel, and the implementation principle and the technical effect are similar, and are not described herein again.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the invention are brought about in whole or in part when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Claims

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

the network equipment determines a control resource set; the control resource set is a time-frequency resource set which allows a control channel to be sent on downlink transmission resources, the size of the control resource set is M times of N, and N is the number of control channel basic units included in one control channel element; the N and the M are both positive integers which are more than or equal to 1;

the network equipment sends control information loaded on the control channel to terminal equipment on the control resource set;

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

the network equipment selects a control channel basic unit for mapping the control channel in the control resource set according to the resource mapping mode of the control channel; the control channel is transmitted over the set of control resources using at least one control channel element, each of the control channel elements comprising at least one control channel element; the resource mapping mode is one of the following modes: a continuous resource mapping mode, a distributed resource mapping mode, a frequency domain priority resource mapping mode and a time domain priority resource mapping mode;

2. The method of claim 1, wherein a starting position of the set of control resources in a frequency domain is a multiple of the N.

3. The method of claim 1 or 2, wherein M is a multiple of a minimum value of a convergence level of all control channels transmitted on the set of control resources.

4. The method of claim 1, wherein the network device selects a control channel basic unit for mapping the control channel from the control resource set according to a resource mapping manner of the control channel, and comprising:

5. The method of claim 4, wherein any two control channel elements that are adjacent to each other in the mapping order have different spacing widths in the frequency domain.

6. The method of claim 1, wherein the network device selects a control channel basic unit for mapping the control channel from a control resource set according to a resource mapping manner of the control channel, and the method comprises:

7. The method of claim 6, wherein any two control channel basic units that are adjacent to each other in the mapping order on the control channel element are bound, and the intervals have different widths in the frequency domain.

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

the terminal equipment determines a control resource set; the control resource set is a time-frequency resource set which allows a control channel to be sent on downlink transmission resources, the size of the control resource set is M times of N, and N is the number of control channel basic units included in one control channel element; the N and the M are both positive integers which are more than or equal to 1;

the terminal equipment blindly detects the control information sent by the network equipment through the control channel on the control resource set;

the blind detection of the control information sent by the network device through the control channel on the control resource set by the terminal device includes:

the terminal equipment blindly detects the control information sent by the network equipment through the control channel on the control resource set according to the resource mapping mode of the control channel; the resource mapping mode is one of the following modes: a continuous resource mapping mode, a distributed resource mapping mode, a frequency domain priority resource mapping mode, and a time domain priority resource mapping mode.

9. The method of claim 8, wherein a starting position of the set of control resources in a frequency domain is a multiple of the N.

10. The method of claim 8 or 9, wherein M is a multiple of a minimum value of a convergence level of all control channels transmitted on the set of control resources.

11. The method of claim 8, wherein the blind detection, by the terminal device, of the control information sent by the network device through the control channel on the set of control resources according to the resource mapping manner of the control channel comprises:

12. The method of claim 11, wherein any two control channel elements that are adjacent to each other in the mapping order have different spacing widths in the frequency domain.

13. The method of claim 8, wherein the blind detection, by the terminal device, of the control information sent by the network device through the control channel on the set of control resources according to the resource mapping manner of the control channel comprises:

14. The method of claim 13, wherein any two control channel basic units that are adjacent to each other in the mapping order on the control channel element are bound, and the intervals have different widths in the frequency domain.

15. A network device, characterized in that the network device comprises:

a determining module for determining a set of control resources; the control resource set is a time-frequency resource set which allows a control channel to be sent on downlink transmission resources, the size of the control resource set is M times of N, and N is the number of control channel basic units included in one control channel element; the N and the M are both positive integers which are more than or equal to 1;

a sending module, configured to send, to a terminal device, control information carried on the control channel on the control resource set;

the sending module comprises:

a selecting unit, configured to select a control channel basic unit for mapping the control channel from the control resource set according to a resource mapping manner of the control channel; the control channel is transmitted over the set of control resources using at least one control channel element, each of the control channel elements comprising at least one control channel element; the resource mapping mode is one of the following modes: a continuous resource mapping mode, a distributed resource mapping mode, a frequency domain priority resource mapping mode and a time domain priority resource mapping mode;

16. The network device of claim 15, wherein a starting position of the set of control resources in a frequency domain is a multiple of the N.

17. The network device of claim 15 or 16, wherein M is a multiple of a minimum value of a convergence level of all control channels transmitted on the set of control resources.

18. The network device of claim 15,

the selecting unit is specifically configured to, when the resource mapping manner of the control channel is a continuous resource mapping manner, select a control channel basic unit for mapping the control channel in the control resource set according to a width of an interval between two adjacent control channel elements in each mapping order in a frequency domain;

19. The network device of claim 18, wherein any two control channel elements that are sequentially adjacent to each other are mapped with different spacing widths in a frequency domain.

20. The network device of claim 15,

the selecting unit is specifically configured to, when the resource mapping manner of the control channel is a distributed resource mapping manner, select, in the control resource set, a control channel basic unit for mapping the control channel according to a width of a space between two control channel basic units that are adjacent in a mapping order on each control channel element and are bound in a frequency domain;

21. The network device of claim 20, wherein any two control channel basic units that are adjacent to each other in the mapping order on the control channel element are bound, and the intervals have different widths in the frequency domain.

22. A terminal device, characterized in that the terminal device comprises:

a blind detection module, configured to blind detect, on the control resource set, control information sent by the network device through the control channel;

the blind detection module is specifically configured to blind detect, 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; the resource mapping mode is one of the following modes: a continuous resource mapping mode, a distributed resource mapping mode, a frequency domain priority resource mapping mode, and a time domain priority resource mapping mode.

23. The terminal device of claim 22, wherein a starting position of the control resource set in a frequency domain is a multiple of the N.

24. The terminal device of claim 22 or 23, wherein M is a multiple of a minimum value of a convergence level of all control channels transmitted on the set of control resources.

25. The terminal device of claim 22,

the blind detection module is specifically configured to, when the resource mapping manner of the control channel is a continuous resource mapping manner, blind detect, on the control resource set, control information sent by the network device through the control channel according to a width of an interval between two adjacent control channel elements in each mapping order in a frequency domain;

26. The terminal device of claim 25, wherein any two control channel elements that are sequentially adjacent to each other are mapped with different spacing widths in the frequency domain.

27. The terminal device of claim 22,

the blind detection module is specifically configured to, when the resource mapping manner of the control channel is a distributed resource mapping manner, blind detect, on the control resource set, control information sent by the network device through the control channel according to a width of an interval between two control channel basic units that are adjacent in a mapping sequence on each control channel element and are bound in a frequency domain;

28. The terminal device of claim 27, wherein any two control channel basic units that are adjacent to each other in the mapping order on the control channel element are bound, and the intervals have different widths in the frequency domain.