WO2020029259A1

WO2020029259A1 - Mapping method and apparatus for control channel resource

Info

Publication number: WO2020029259A1
Application number: PCT/CN2018/100003
Authority: WO
Inventors: 纪鹏宇; 张健; 张磊; 王昕�
Original assignee: 富士通株式会社; 纪鹏宇; 张健; 张磊; 王昕�
Priority date: 2018-08-10
Filing date: 2018-08-10
Publication date: 2020-02-13

Abstract

A mapping method and apparatus for a control channel resource. The method comprises: a sending device determines a time-domain resource candidate set from a control channel resource pool, the number of symbols comprised in each candidate time-domain resource in the time-domain resource candidate set being less than or equal to the number of symbols comprised in a time slot or a sub-frame; the sending device selects, in the time-domain resource candidate set, a control channel time-domain resource for transmitting control information. Hence, a time-domain resource that can support scheduling data is in a non-slot case; moreover, the complexity of detecting a control channel by a receiving device is not high.

Description

Method and device for mapping control channel resources

Technical field

Embodiments of the present invention relate to the field of communications technologies, and in particular, to a method and an apparatus for mapping control channel resources.

Background technique

Vehicle-to-Everything (V2X) in Long Term Evolution (LTE) system is a vehicle communication technology that can support vehicle-to-vehicle, vehicle-to-roadside unit, and vehicle-to-pedestrian communication in a variety of scenarios .

The sending device in V2X can directly send data to the receiving device through a directly connected side link, that is, the data can be transferred without passing through network equipment such as a base station. A side link is a new air interface that provides a direct connection for communication between sending and receiving devices.

LTE V2X is based on the LTE architecture. For example, the side link can only use LTE uplink subframes, and the side link can send data in subframes. It can achieve coexistence and compatibility with LTE cellular communications and can meet basic road safety and road condition warning And other business needs.

With the emergence of new services and new scenarios, such as remote driving, autonomous driving, real-time information interaction, etc., future V2X needs to meet higher business requirements and technical indicators. For example, remote driving requires lower communication latency to ensure real-time performance and higher data transmission reliability to ensure safety; real-time video interaction requires low latency and higher data transmission rates.

It should be noted that the above description of the technical background is merely for the convenience of a clear and complete description of the technical solution of the present invention, and for the understanding of those skilled in the art. The above technical solutions should not be considered to be well known to those skilled in the art just because these solutions are explained in the background section of the present invention.

Summary of the invention

The inventor found that certain scenarios such as V2X need to support new services and need to perform data transmission with a length smaller than a sub-frame or slot (which can be called non-slot non-slot or mini-slot), but the current edge The link control channel cannot meet this scenario.

In view of at least one of the above problems, embodiments of the present invention provide a method and an apparatus for mapping control channel resources.

According to a first aspect of the embodiments of the present invention, a method for mapping control channel resources is provided, including:

The sending device determines a candidate set of time domain resources from the control channel resource pool, and the number of symbols included in each candidate time domain resource in the candidate set of time domain resources is less than or equal to the number of symbols included in the time slot or subframe. ;

The sending device selects a control channel time domain resource for transmitting control information from the time domain resource candidate set.

According to a second aspect of the embodiments of the present invention, a device for mapping control channel resources is provided, including:

A candidate determining unit determines a candidate set of time domain resources from a control channel resource pool, and the number of symbols included in each candidate time domain resource in the candidate set of time domain resources is less than or equal to that included in a time slot or a subframe. Number of symbols

A resource selection unit that selects a control channel time domain resource for transmitting control information from the time domain resource candidate set.

According to a third aspect of the embodiments of the present invention, a method for mapping control channel resources is provided, including:

The receiving device receives control information sent from the transmitting device based at least on a control channel time domain resource, the number of symbols included in the control channel time domain resource being less than or equal to the number of symbols included in the time slot or subframe; and

The receiving device receives data information sent through the data channel according to an indication of the data channel by the control information.

According to a fourth aspect of the embodiments of the present invention, an apparatus for mapping control channel resources is provided, including:

A control information receiving unit that receives control information sent from a transmitting device based on at least a control channel time domain resource, the number of symbols included in the time channel resource of the control channel being less than or equal to the number of symbols included in a time slot or a subframe Number; and

A data information receiving unit that receives data information sent through the data channel according to an instruction of the data channel by the control information.

According to a fifth aspect of the embodiments of the present invention, a communication system is provided, including:

A transmitting device including the control channel resource mapping device according to the second aspect; and

The receiving device includes the apparatus for mapping control channel resources according to the fourth aspect.

The embodiment of the present invention has the beneficial effect that the sending device determines a candidate set of time domain resources from the control channel resource pool, and the number of symbols included in each candidate time domain resource in the candidate set of time domain resources is less than or equal to a time slot Or the number of symbols included in the subframe; and selecting a control channel time domain resource for transmitting control information from the time domain resource candidate set. Therefore, the time domain resource capable of supporting the scheduling data is non-slot; and the complexity of the control channel detection by the receiving device will not be very high.

With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, and ways in which the principles of the present invention can be adopted are indicated. It should be understood that the scope of the embodiments of the present invention is not limited thereby. Within the spirit and terms of the appended claims, embodiments of the invention include many changes, modifications, and equivalents.

Features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or in place of features in other embodiments .

It should be emphasized that the term "including / comprising" as used herein refers to the presence of a feature, whole, step or component, but does not exclude the presence or addition of one or more other features, whole, steps or components.

BRIEF DESCRIPTION OF THE DRAWINGS

Elements and features described in one drawing or an embodiment of an embodiment of the present invention may be combined with elements and features shown in one or more other drawings or implementations. In addition, in the drawings, similar reference numerals indicate corresponding parts in several drawings, and may be used to indicate corresponding parts used in more than one embodiment.

FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention;

FIG. 2 is an example diagram of the adjacent PSSCH and PSCCH in LTE;

3 is an example diagram of PSSCH and PSCCH not adjacent in LTE;

FIG. 4 is an example diagram of the adjacent PSSCH and PSCCH in NR;

5 is an example diagram of PSSCH and PSCCH not adjacent in NR;

6 is a schematic diagram of a method for mapping control channel resources according to an embodiment of the present invention;

7 is another schematic diagram of a method for mapping control channel resources according to an embodiment of the present invention;

FIG. 8 is an example diagram of PSCCH and PSSCH according to an embodiment of the present invention; FIG.

FIG. 9 is another example diagram of PSCCH and PSSCH according to an embodiment of the present invention; FIG.

FIG. 10 is another example diagram of PSCCH and PSSCH according to an embodiment of the present invention; FIG.

FIG. 11 is another example diagram of PSCCH and PSSCH according to an embodiment of the present invention; FIG.

FIG. 12 is another example diagram of PSCCH and PSSCH according to an embodiment of the present invention; FIG.

13 is another example diagram of PSCCH and PSSCH according to an embodiment of the present invention;

14 is a schematic diagram of a control channel resource mapping method according to an embodiment of the present invention;

15 is a schematic diagram of a control channel resource mapping apparatus according to an embodiment of the present invention;

16 is a schematic diagram of a control channel resource mapping apparatus according to an embodiment of the present invention;

17 is a schematic diagram of a network device according to an embodiment of the present invention;

FIG. 18 is a schematic diagram of a terminal device according to an embodiment of the present invention.

detailed description

The foregoing and other features of the present invention will become apparent from the following description with reference to the accompanying drawings. In the description and the drawings, specific embodiments of the present invention are specifically disclosed, which shows some of the embodiments in which the principles of the present invention can be applied. It should be understood that the present invention is not limited to the described embodiments, but rather, the present invention The invention includes all modifications, variations, and equivalents falling within the scope of the appended claims.

In the embodiments of the present invention, the terms “first” and “second” are used to distinguish different elements from each other by title, but they do not indicate the spatial arrangement or chronological order of these elements, and these elements should not be used by these terms. Restricted. The term "and / or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having" and the like refer to the presence of stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.

In the embodiment of the present invention, the singular forms "a", "the", etc. include plural forms and should be construed broadly as "a" or "a class" and not limited to the meaning of "a"; in addition, the term "a "Description" is understood to include both the singular and the plural forms unless the context clearly indicates otherwise. Furthermore, the term "based on" should be understood as "based at least in part on ..." and the term "based on" should be understood as "based at least in part on ..." unless the context clearly indicates otherwise.

In the embodiment of the present invention, the term "communication network" or "wireless communication network" may refer to a network that conforms to any of the following communication standards, such as Long Term Evolution (LTE, Long Term Evolution), Enhanced Long Term Evolution (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access), and so on.

In addition, communication between devices in the communication system may be performed according to a communication protocol at any stage, for example, it may include, but is not limited to, the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and 5G , New Radio (NR, New Radio), etc., and / or other communication protocols currently known or to be developed in the future.

In the embodiment of the present invention, the term "network device" refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services to the terminal device. Network devices may include, but are not limited to, the following devices: Base Station (BS, Base Station), Access Point (AP, Access Point), Transmission and Reception Point (TRP, Transmission, Reception Point), Broadcast Transmitter, Mobile Management Entity (MME, Mobile Management entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller), and so on.

The base station may include, but is not limited to, Node B (NodeB or NB), evolved Node B (eNodeB or eNB), 5G base station (gNB), and so on. In addition, it may include a remote radio head (RRH, Remote Radio Head) , Remote radio unit (RRU, Remote Radio Unit), relay (relay) or low-power node (such as femeto, pico, etc.). And the term "base station" may include some or all of their functions, and each base station may provide communication coverage for a particular geographic area. The term "cell" may refer to a base station and / or its coverage area, depending on the context in which the term is used.

In the embodiment of the present invention, the term "User Equipment" (UE) or "Terminal Equipment" (TE) refers to a device that accesses a communication network through a network device and receives network services. The terminal device may be fixed or mobile, and may also be called a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, and so on.

The terminal device may include, but is not limited to, the following devices: Cellular Phone, Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication device, handheld device, machine-type communication device, laptop computer, Cordless phones, smartphones, smart watches, digital cameras, and more.

For another example, in scenarios such as the Internet of Things (IoT), the terminal device may also be a machine or device that performs monitoring or measurement. For example, it may include, but is not limited to, a Machine Type Communication (MTC) terminal, Vehicle communication terminals, device-to-device (D2D) terminals, machine-to-machine (M2M) terminals, and so on.

In addition, the term "network side" or "network device side" refers to one side of the network, which may be a certain base station, or may include one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the side of the user or terminal, which may be a certain UE, and may also include one or more terminal devices as described above.

The following describes the scenario of the embodiment of the present invention through an example, but the present invention is not limited thereto.

FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention, and schematically illustrates a case where a terminal device and a network device are taken as an example. As shown in FIG. 1, the communication system 100 may include a network device 101 and a terminal device 102. For simplicity, FIG. 1 only uses two terminal devices and one network device as an example for description, but the embodiment of the present invention is not limited thereto.

In the embodiment of the present invention, the network device 101 and the terminal device 102 can perform an existing service or a service that can be implemented in the future. For example, these services may include, but are not limited to: enhanced mobile broadband (eMBB, enhanced Mobile Broadband), large-scale machine type communications (mMTC, massive Machine Type Communication), and high-reliability low-latency communications (URLLC, Ultra-Reliable and Low) -Latency Communication) and so on.

It is worth noting that FIG. 1 shows that both terminal devices 102 are within the coverage of the network device 101, but the present invention is not limited thereto. Both terminal devices 102 may not be within the coverage of the network device 101, or one terminal device 102 is within the coverage of the network device 101 and the other terminal device 102 is outside the coverage of the network device 101.

In the embodiment of the present invention, an edge link transmission may be performed between two terminal devices 102. For example, both terminal devices 102 may perform side-link transmissions within the coverage of the network device 101 to implement V2X communication, or both may perform side-link transmissions outside the coverage of the network device 101 to implement V2X communication. It is also possible for one terminal device 102 to be within the coverage area of the network device 101 and another terminal device 102 to perform side-link transmission outside the coverage area of the network device 101 to implement V2X communication.

In Rel-15 and earlier versions of V2X communication, the control channel (which can be called a physical side link control channel, PSCCH (Physical Sidelink Control Channel)) and the data channel (which can be called a physical side link shared channel, PSSCH (Physical Sidelink (Shared Channel)) can be adjacent or non-adjacent in the frequency domain. Among them, for adjacent cases, there is no need to additionally configure a resource pool of PSCCH; for non-adjacent cases, it is necessary to additionally configure a resource pool of PSCCH.

For the control channel, two physical resource blocks (PRB, Physical Resource Block) are fixedly occupied in the frequency domain. In the time domain, since Rel-15 and earlier versions of V2X are based on LTE technology, scheduling is based on one subframe. Unit, so for PSSCH and PSCCH, the time domain length of each scheduling is fixed to 1 subframe.

FIG. 2 is an example diagram of adjacent PSSCH and PSCCH in LTE. As shown in FIG. 2, PSCCH1 and PSSCH1 are adjacent in the frequency domain; PSCCH2 and PSSCH2 are adjacent in the frequency domain.

Fig. 3 is an example diagram of PSSCH and PSCCH not adjacent in LTE. As shown in Fig. 2, PSCCH3 and PSSCH3 are not adjacent in the frequency domain; PSCCH4 and PSSCH4 are not adjacent in the frequency domain.

V2X based on New Radio (NR, New Radio) technology has been neutralized in the standard. In NR, the time domain length of each scheduling may be one or more slots, or a part of consecutive symbols in one or more slots.

Considering that the time domain length of the scheduling data channel (PSSCH) can be consecutive symbols in a time slot, correspondingly, for the frequency domain resources used by the control channel (PSCCH), a mechanism similar to that in the previous version can be used and configured as a fixed Number of PRBs (for example, Rel-15 and 2 PRBs in previous versions), and may be adjacent or non-adjacent to the PSSCH in the frequency domain.

FIG. 4 is an example diagram of the adjacent PSSCH and PSCCH in NR. As shown in FIG. 4, PSCCH1, PSSCH1, and PSSCH2 are adjacent in the frequency domain. However, because PSSCH 1 and PSSCH 2 use non-slot transmission, if the time domain length of PSCCH 1 scheduling is still one subframe, PSSCH 1 and PSSCH 2 cannot be indicated.

FIG. 5 is an example diagram where PSSCH and PSCCH are not adjacent in NR. As shown in FIG. 5, PSCCH 3 and PSSCH 3 and PSSCH 4 are not adjacent in the frequency domain. However, since PSSCH 3 and PSSCH 4 use non-slot transmission, if the time domain length of PSCCH 3 scheduling is still one subframe, PSSCH 3 and PSSCH 4 cannot be indicated.

Therefore, the time domain resources used by the PSCCH need to be redesigned to meet the needs of data transmission which can be non-slot. The embodiments of the present invention will be described by using sidelink and V2X as examples, but the present invention is not limited thereto.

For example, a terminal device can be configured with a sending / receiving resource pool for the terminal device to perform resource selection. For each resource pool, it can correspond to a frequency domain resource pool (for example, in units of PRB or subchannels) and a time domain resource pool ( For example, corresponding to one or more time slots and / or a series of symbols), for a data channel PSSCH and a control channel PSCCH, corresponding resource pools can be respectively configured.

Example 1

An embodiment of the present invention provides a method for mapping control channel resources, which is described from a transmitting device side. The sending device may be a terminal device, but the present invention is not limited thereto, and may also be a network device, for example.

FIG. 6 is a schematic diagram of a method for mapping control channel resources according to an embodiment of the present invention. As shown in FIG. 6, the method includes:

Step 601: The sending device determines a time domain resource candidate set from the control channel resource pool, and the number of symbols (also referred to as a length or time domain length) included in each candidate time domain resource in the time domain resource candidate set. Less than or equal to the number of symbols included in a time slot or subframe;

Step 602: The sending device selects a control channel time domain resource for transmitting control information from the time domain resource candidate set.

In this embodiment, the number of symbols included in the time domain resource of the control channel is less than or equal to the number of symbols included in a time slot or subframe; for example, the number of symbols included in the time slot or subframe may be 14, but the present invention is not limited to this.

In this embodiment, for example, Orthogonal Frequency Division Multiplexing (OFDM), Single-Carrier Frequency Division Multiple Access (SC-FDMA) or Discrete Fourier Transform Extension can be used. Orthogonal frequency division multiplexing (DFT-s-OFDM, Discrete, Fourier, Transform, Orthogonal, Division, Multiplex) and other waveforms, so the above symbols can be symbols such as OFDM, SC-FDMA, or DFT-s-OFDM. The invention is not limited to this.

In this embodiment, the time domain resources of the control channel are resources used for side-link transmission, and can be applied in a V2X scenario. However, the present invention is not limited to this. For other scenarios with similar problems, the embodiments of the present invention are also applicable.

FIG. 7 is another schematic diagram of a method for mapping control channel resources according to an embodiment of the present invention, and is described from a transmitting device side and a receiving device side. As shown in FIG. 7, the method includes:

Step 701: The sending device determines a candidate set of time domain resources from the control channel resource pool, and the number of symbols included in each candidate time domain resource in the candidate set of time domain resources is less than or equal to that included in a time slot or a subframe. Number of symbols

Step 702: The sending device selects a control channel time domain resource for transmitting control information from the time domain resource candidate set.

As shown in FIG. 7, the method may further include:

Step 703: The sending device uses at least the control channel time domain resource to send the control information to a receiving device to indicate a data channel corresponding to the control information.

As shown in FIG. 7, the method may further include:

Step 704: The sending device sends data information to the receiving device through the data channel.

As shown in FIG. 7, the method may further include:

Step 700: Determine a time domain resource pool for the control channel.

It is worth noting that the above-mentioned drawings 6 or 7 only schematically illustrate the embodiments of the present invention, but the present invention is not limited thereto. For example, the execution order between the steps can be adjusted as appropriate. In addition, other steps can be added or some steps can be reduced. Those skilled in the art may make appropriate modifications based on the foregoing, and are not limited to the above description of FIG. 6 or 7.

In one embodiment, the number of symbols included in the control channel time domain resource is predetermined. For example, the number of symbols included in the control channel time domain resource is L, and L is a positive integer and is less than or equal to the number of symbols included in the time slot or subframe. The number of symbols included in the time slot or subframe is, for example, 14.

For example, for time domain resources in a time domain resource pool (resource pool) belonging to the PSCCH, the time domain length L of the PSCCH is fixed. Specifically, the value may be one of the number of 1 to 14 symbols defined by the standard, or may be configured separately. For example, if the PSCCH resource pool is configured separately, L can be configured in the PSCCH resource pool; for another example, L can also be configured in the PSSCH resource pool.

The time domain resource pool of the PSCCH may be a series of time slots, or a series of symbols, or a set of time slots and symbols; but the present invention is not limited thereto.

In addition, the time domain resources of the PSCCH may be continuous or discontinuous in the actual time domain.

In one embodiment, the sending device may determine the candidate set of time domain resources from the control channel resource pool according to a symbol index and the number of symbols included in the control channel time domain resources. For example, the sending device uses a resource in the control channel resource pool whose starting position meets the following conditions as the candidate time domain resource:

SI mod (N * L) = offset;

Where SI is the symbol index, N is a natural number, and L is the number of symbols included in the time domain resource of the control channel; offset is an offset parameter, and offset is greater than or equal to zero and less than or equal to the time slot or subframe The number of symbols included.

In one embodiment, the symbol index is an index of a symbol in the control channel resource pool. That is, all symbols in the PSCCH resource pool may be numbered regardless of the time slot or the subframe. The starting position of the PSCCH time domain resource may be determined by a corresponding symbol index in the PSCCH time domain resource pool.

For example, assuming that N = 1, L = 2, offset = 0, the symbol indexes # 0, # 2, # 4,... In the time domain resource pool of the control channel can be used as the starting positions of candidate time domain resources, Considering L = 2, so [# 0, # 1], [# 2, # 3], [# 4, # 5], ... can be used as the candidate time domain resources respectively to form the candidate time domain. Resource collection.

In another implementation manner, the symbol index is an index of a symbol belonging to the control channel resource pool in the time slot or subframe. That is, the symbol index can be restricted to be a symbol index belonging to the PSCCH time domain resource pool in a time slot or subframe, and its range depends on the number of symbols in the current time slot or subframe containing the symbols belonging to the PSCCH time domain resource pool; The candidate positions that belong to the PSCCH time domain resource pool can be obtained by the starting position and length, and these candidate sets can be used for PSCCH transmission.

For example, if there are 14 symbols in the current time slot, and 6 symbols belong to the PSCCH time domain resource pool, these 6 symbols can be numbered from # 0 to # 5. Assuming N = 1, L = 2, offset = 0, then the indexes # 0, # 2, and # 4 in these 6 symbols can be used as the starting position of the candidate time domain resource. Considering L = 2, [# 0 , # 1], [# 2, # 3], [# 4, # 5], ... can be used as the candidate time domain resources, and for other time slots, the time slots are also numbered according to this mechanism. Thus, the candidate time domain resource set is composed.

In another embodiment, the symbol index is an index of a symbol in the time slot or subframe. That is, the candidate sets that can be sent in a time slot or subframe can be limited; this candidate set can be used for PSCCH transmission only when the symbols contained in these candidate sets are within the PSSCH time domain resource pool; otherwise, it cannot be used for PSCCH is sent.

For example, there are 14 symbols in the current slot, which can be numbered # 0 ~ # 13; and the symbols belonging to the PSCCH time domain resource pool in the current slot are # 0 ～ # 3, # 10 ～ # 13. Assuming N = 1, L = 2, offset = 0, then the indexes # 0, # 2, # 10, # 12 in these 8 symbols can be used as the starting position of the candidate time domain resource. Considering L = 2, so [# 0, # 1], [# 2, # 3], [# 10, # 11], [# 12, # 13] can be used as the candidate time domain resources, and for other time slots, follow this mechanism. The candidate time domain resource is obtained, thereby forming the candidate time domain resource set.

It is worth noting that the above only illustrates schematically how to determine candidate time domain resources, but the present invention is not limited thereto. In these ways, the number of candidate time domain resources can be limited, thereby further reducing the complexity of detection by the receiving device.

In one embodiment, an offset indication information may be configured along with the resource pool; for example, if the PSCCH resource pool is configured separately, it may be configured in the PSCCH resource pool, and for example, it may be configured in the PSSCH resource pool. Through this offset, the pair symbol indicating the current corresponding position can be used as the starting position of the PSCCH.

In this embodiment, for the transmitting device, the PSCCH is not transmitted at the candidate position that crosses the boundary of two time slots or subframes among the candidate positions composed of the start position and the length.

The time domain resource pool of the PSCCH is described below.

In one embodiment, the resource pool of the PSSCH can be reused. That is, the time domain resource pool of the control channel is determined according to the time domain resource pool of the data channel; for example, the time domain resource pool of the control channel is the same as the time domain resource pool of the data channel.

For example, the corresponding time slots / symbols contained in the time domain resource pool are the same. If the frequency domain resources of the PSCCH and PSSCH are adjacent, it is not necessary to configure the PSCCH time domain and frequency domain resource pools separately. The domain resource pool can be the first 2 PRBs or the first n PRBs of each subchannel. However, if the frequency domain resources of PSCCH and PSSCH are not adjacent, the frequency domain resource pool of PSCCH needs to be configured separately.

FIG. 8 is an example diagram of PSCCH and PSSCH according to an embodiment of the present invention, showing an example in which the PSCCH time domain resource pool and the PSSCH time domain resource pool are the same, and the PSCCH frequency domain resource and the PSSCH frequency domain resource are adjacent.

As shown in FIG. 8, for example, because the starting position does not meet the condition of SI mod 2 = 0, the two symbols at A will not be determined as PSCCH candidate time domain resources; for example, the two symbols at B It is determined as a PSCCH candidate time domain resource, and the PSSCH resource with a time domain length of 2 symbols is indicated; for another example, two symbols at C are determined as a PSCCH candidate time domain resource, and the time domain length is 4 symbols Indicates the PSSCH resources.

FIG. 9 is another example diagram of PSCCH and PSSCH according to an embodiment of the present invention, and illustrates an example in which the PSCCH time domain resource pool and the PSSCH time domain resource pool are the same, and the PSCCH frequency domain resource and the PSSCH frequency domain resource are not adjacent.

As shown in FIG. 9, for example, because the starting position does not meet the condition of SI mod 2 = 0, the two symbols at A will not be determined as PSCCH candidate time domain resources; for example, the two symbols at B It is determined as a PSCCH candidate time domain resource, and the PSSCH resource with a time domain length of 2 symbols is indicated; for another example, two symbols at C are determined as a PSCCH candidate time domain resource, and the time domain length is 6 symbols Indicates the PSSCH resources.

In one embodiment, the time domain resource pool of the control channel is configured independently from the time domain resource pool of the data channel; for example, the time domain resource pool of the control channel is configured as the time of the data channel. A subset of the domain resource pool.

For example, the time domain resource pool of the PSCCH can be individually configured, including but not limited to being a subset of the resource set in the PSSCH time domain resource pool. Specifically, the time domain resource pool of the PSCCH may be obtained by one or more bitmap indications, or may be configured by a start position plus a length and a period, which is not limited in this embodiment. . In this case, regardless of whether the frequency domain resources of PSCCH and PSSCH are adjacent, the time domain resource pool of PSCCH needs to be configured separately.

FIG. 10 is another example diagram of PSCCH and PSSCH according to an embodiment of the present invention, showing an example in which the PSCCH time domain resource pool and the PSSCH time domain resource pool are independently configured, and the PSCCH frequency domain resource and the PSSCH frequency domain resource are adjacent.

As shown in FIG. 10, for example, because they do not belong to the PSCCH resource pool, two symbols at A will not be determined as PSCCH candidate time domain resources; for example, two symbols at B are determined as PSCCH candidate time domains. Resources, indicating a PSSCH resource with a time domain length of 2 symbols; for another example, two symbols at C are determined as PSCCH candidate time domain resources, and a PSSCH resource with a time domain length of 6 symbols is indicated.

FIG. 11 is another example diagram of PSCCH and PSSCH according to an embodiment of the present invention, showing an example in which the PSCCH time domain resource pool and the PSSCH time domain resource pool are independently configured, and the PSCCH frequency domain resource and the PSSCH frequency domain resource are not adjacent.

As shown in FIG. 11, for example, because they do not belong to the PSCCH resource pool, the two symbols at A will not be determined as PSCCH candidate time domain resources; for example, the two symbols at B are determined as PSCCH candidate time domains Resources, indicating a PSSCH resource with a time domain length of 2 symbols; for another example, two symbols at C are determined as PSCCH candidate time domain resources, and a PSSCH resource with a time domain length of 6 symbols is indicated.

It is worth noting that the above only illustrates the PSCCH and PSSCH schematically, but the present invention is not limited thereto. Through these methods, the number of candidate time domain resources can be limited, so that it can be ensured that the detection complexity of the receiving device is not very high.

In one embodiment, when the number of symbols included in the time domain resource of the control channel is determined in advance, the control information includes time domain resource information of a data channel. That is, the SCI indication information carried in the PSCCH needs to include the time domain information of the PSSCH data, which can indicate its starting position and length, that is, the starting symbol position and the number of symbols included.

At this time, the reference index of the starting position and length can be the symbols in the PSSCH time domain resource pool, or the symbols in the actual time slot or subframe. For the actual time slot or subframe, it is necessary to ensure that the scheduled symbols are all Within the time domain resource pool of the PSCCH.

In one embodiment, the number of symbols included in the control channel time domain resource is the same as the number of symbols included in the data channel time domain resource, and the start position of the control channel time domain resource and the data channel time domain The starting position of the resource is the same.

For example, the number of symbols included in the control channel time domain resource is L, and L is a positive integer and is less than or equal to the number of symbols included in the time slot or subframe. The time domain length of the PSCCH can be limited to some optional values between the maximum length (for example, 14) and the minimum length (for example, 1) in a slot or subframe; for example, the set of length L is {2,4 , 7,14}, that is, L is one of the following values: 2, 4, 7, 14, but the present invention is not limited thereto.

In one embodiment, the time domain resource pool of the control channel may be determined according to the time domain resource pool of the data channel. That is, in this case, the time domain resource pool of the PSCCH may not be configured separately.

FIG. 12 is another example diagram of PSCCH and PSSCH according to an embodiment of the present invention, showing the starting position of the PSCCH time domain resource and the number of symbols included, and the starting position of the PSSCH time domain resource and the number of symbols included. An example in which the PSCCH frequency domain resources and the PSSCH frequency domain resources are adjacent.

As shown in FIG. 12, for example, two symbols at D are determined as PSCCH candidate time domain resources, and a PSSCH resource with a time domain length of 2 symbols is indicated; for another example, 6 symbols at E are determined It is a PSCCH candidate time domain resource, and indicates a PSSCH resource with a time domain length of 6 symbols.

FIG. 13 is another example diagram of PSCCH and PSSCH according to an embodiment of the present invention, showing the starting position of the PSCCH time domain resource and the number of symbols included, and the starting position of the PSSCH time domain resource and the number of symbols included. An example in which the PSCCH frequency domain resources and the PSSCH frequency domain resources are not adjacent.

As shown in FIG. 13, for example, two symbols at D are determined as PSCCH candidate time domain resources, and a PSSCH resource with a time domain length of 2 symbols is indicated; for another example, 6 symbols at E are determined It is a PSCCH candidate time domain resource, and indicates a PSSCH resource with a time domain length of 6 symbols.

It is worth noting that the above only illustrates the PSCCH and PSSCH schematically, but the present invention is not limited thereto. In these ways, the number of candidate time domain resources can be limited, thereby further reducing the complexity of detection by the receiving device.

In one embodiment, when the number of symbols included in the time domain resource of the control channel is the same as the number of symbols included in the time domain resource of the data channel, the control information does not include the time domain resource of the data channel. information. That is, since the time domain resources occupied by the PSCCH are the same as the scheduled PSSCH time domain resources, the SCI indication information carried in the PSCCH need not include the time domain information of the PSSCH data.

Each of the above embodiments or implementations has merely described the embodiments of the present invention by way of example, but the present invention is not limited thereto, and appropriate modifications may be made on the basis of each of the above embodiments or implementations. For example, each of the above embodiments or implementations may be used alone, or one or more of the above embodiments or implementations may be combined.

It can be known from the foregoing embodiment that the sending device determines a time domain resource candidate set from the control channel resource pool, and each candidate time domain resource in the time domain resource candidate set includes less than or equal to a time slot or a subframe. The number of symbols included; and selecting a control channel time domain resource for transmitting control information from the time domain resource candidate set. Therefore, the time domain resource capable of supporting the scheduling data is non-slot; and the complexity of the control channel detection by the receiving device will not be very high.

Example 2

An embodiment of the present invention provides a method for mapping control channel resources, which is described from a receiving device side, and the same content as in Embodiment 1 is not described again. The receiving device may be a terminal device, but the present invention is not limited thereto. For example, the receiving device may also be a network device.

FIG. 14 is a schematic diagram of a control channel resource mapping method according to an embodiment of the present invention, showing a situation on a receiving device side. As shown in Figure 14, the method includes:

Step 1401: The receiving device receives control information sent from the transmitting device according to at least the control channel time domain resource, where the number of symbols included in the time channel resource of the control channel is less than or equal to the number of symbols included in the time slot or subframe ;as well as

Step 1402: The receiving device receives data information sent through the data channel according to an indication of the data channel by the control information.

In this embodiment, the number of symbols included in the time domain resource of the control channel is determined in advance, or the number of symbols included in the time domain resource of the control channel and the number of symbols included in the time domain resource of the data channel The same and the start position of the time domain resource of the control channel is the same as the start position of the time domain resource of the data channel.

It should be noted that FIG. 14 above only illustrates the embodiments of the present invention schematically, but the present invention is not limited thereto. For example, the execution order between the steps can be adjusted as appropriate. In addition, other steps can be added or some steps can be reduced. Those skilled in the art may make appropriate modifications based on the foregoing, and are not limited to the above description of FIG. 14.

Each of the above embodiments has only described the embodiments of the present invention by way of example, but the present invention is not limited thereto, and appropriate modifications may be made on the basis of the above embodiments. For example, each of the above embodiments may be used alone, or one or more of the above embodiments may be combined.

It can be known from the foregoing embodiment that the sending device determines a time domain resource candidate set from the control channel resource pool, and each candidate time domain resource in the time domain resource candidate set includes less than or equal to a time slot or a subframe. And, selecting a control channel time domain resource for transmitting control information from the time domain resource candidate set. Therefore, the time domain resource capable of supporting the scheduling data is non-slot; and the complexity of the control channel detection by the receiving device will not be very high.

Example 3

An embodiment of the present invention provides an apparatus for mapping control channel resources, which is configured in a sending device. The sending device may be, for example, a terminal device, or may be some or some parts or components configured on the terminal device. However, the present invention is not limited to this. For example, the present invention may also be a network device, and may also be a certain component or component configured on the network device. The content of the third embodiment is the same as that of the first embodiment and will not be described again.

FIG. 15 is a schematic diagram of a control channel resource mapping device according to an embodiment of the present invention. As shown in FIG. 15, the control channel resource mapping device 1500 includes:

A candidate determining unit 1501 determines a candidate set of time domain resources from a control channel resource pool, and the number of symbols included in each candidate time domain resource in the candidate set of time domain resources is less than or equal to that included in a time slot or a subframe. Number of symbols

A resource selection unit 1502 selects a control channel time domain resource for transmitting control information from the time domain resource candidate set.

As shown in FIG. 15, the mapping device 1500 for control channel resources may further include:

A control information sending unit 1503 uses at least the control channel time domain resources to send the control information to a receiving device to indicate a data channel corresponding to the control information.

A data information sending unit 1504 sends data information to the receiving device through the data channel.

A resource pool determining unit 1505 determines a time domain resource pool for a control channel.

It is worth noting that the above only describes components or modules related to the present invention, but the present invention is not limited thereto. The control channel resource mapping device 1500 may further include other components or modules. For specific content of these components or modules, reference may be made to related technologies.

In addition, for the sake of simplicity, FIG. 15 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be adopted. Each of the above components or modules may be implemented through hardware facilities such as a processor, a memory, a transmitter, and a receiver; the implementation of the present invention does not limit this.

Example 4

An embodiment of the present invention provides an apparatus for mapping control channel resources, which is configured in a receiving device. The receiving device may be, for example, a terminal device, or may be some or some parts or components configured on the terminal device. However, the present invention is not limited to this. For example, the present invention may also be a network device, and may also be a certain component or component configured on the network device. The content of the fourth embodiment is the same as that of the second embodiment.

FIG. 16 is a schematic diagram of a control channel resource mapping device according to an embodiment of the present invention. As shown in FIG. 16, a control channel resource mapping device 1600 includes:

A control information receiving unit 1601, which receives control information sent from a transmitting device according to at least a control channel time domain resource, the length of the control channel time domain resource being less than or equal to a time slot or a subframe; and

A data information receiving unit 1602 receives data information sent through the data channel according to an instruction of the data channel by the control information.

It is worth noting that the above only describes components or modules related to the present invention, but the present invention is not limited thereto. The control channel resource mapping device 1600 may further include other components or modules. For specific content of these components or modules, reference may be made to related technologies.

In addition, for the sake of simplicity, FIG. 16 only exemplarily illustrates the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection may be adopted. Each of the above components or modules may be implemented through hardware facilities such as a processor, a memory, a transmitter, and a receiver; the implementation of the present invention does not limit this.

Example 5

An embodiment of the present invention further provides a communication system, and reference may be made to FIG. 1, and the same contents as those in Embodiments 1 to 4 are not described again. In this embodiment, the communication system 100 may include:

The terminal device 102 is configured with the control channel resource mapping device 1500 according to the third embodiment or the control channel resource mapping device 1600 according to the fourth embodiment.

The network device 101 provides services for the terminal device 102.

An embodiment of the present invention further provides a network device, which may be, for example, a base station, but the present invention is not limited thereto, and may also be another network device.

FIG. 17 is a schematic structural diagram of a network device according to an embodiment of the present invention. As shown in FIG. 17, the network device 1700 may include: a processor 1710 (such as a central processing unit CPU) and a memory 1720; the memory 1720 is coupled to the processor 1710. The memory 1720 can store various data; in addition, a program 1730 for information processing is stored, and the program 1730 is executed under the control of the processor 1710.

In addition, as shown in FIG. 17, the network device 1700 may further include a transceiver 1740, an antenna 1750, and the like; wherein the functions of the above components are similar to those in the prior art, and details are not described herein again. It is worth noting that the network device 1700 does not necessarily need to include all the components shown in FIG. 17; in addition, the network device 1700 may also include components not shown in FIG. 17, and reference may be made to the prior art.

An embodiment of the present invention further provides a terminal device, but the present invention is not limited thereto, and may also be another device.

FIG. 18 is a schematic diagram of a terminal device according to an embodiment of the present invention. As shown in FIG. 18, the terminal device 1800 may include a processor 1810 and a memory 1820; the memory 1820 stores data and programs, and is coupled to the processor 1810. It is worth noting that this figure is exemplary; other types of structures can also be used to supplement or replace the structure to implement telecommunication functions or other functions.

For example, the processor 1810 may be configured to execute a program to implement a control channel resource mapping method as described in Embodiment 1. For example, the processor 1810 may be configured to perform the following control: determine a candidate set of time domain resources from the control channel resource pool, and the number of symbols included in each candidate time domain resource in the candidate set of time domain resources is less than or equal to The number of symbols included in a time slot or a subframe; and a control channel time domain resource for transmitting control information is selected from the time domain resource candidate set.

As another example, the processor 1810 may be configured to execute a program to implement the control channel resource mapping method described in Embodiment 2. For example, the processor 1810 may be configured to perform the following control: receiving control information sent from the sending device according to at least a control channel time domain resource, the number of symbols included in the control channel time domain resource being less than or equal to a time slot or The number of symbols included in the subframe; and receiving data information sent over the data channel according to an indication of the data channel by the control information.

As shown in FIG. 18, the terminal device 1800 may further include a communication module 1830, an input unit 1840, a display 1850, and a power supply 1860. The functions of the above components are similar to those in the prior art, and are not repeated here. It is worth noting that the terminal device 1800 does not have to include all the components shown in FIG. 18, and the above components are not necessary. In addition, the terminal device 1800 may also include components not shown in FIG. There is technology.

An embodiment of the present invention further provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the control channel resource mapping method according to

embodiment

1 or 2.

An embodiment of the present invention further provides a storage medium storing a computer program, where the computer program causes a network device to execute the method for mapping control channel resources according to

Embodiment

1 or 2.

An embodiment of the present invention further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the method for mapping control channel resources according to

Embodiment

1 or 2.

An embodiment of the present invention further provides a storage medium storing a computer program, where the computer program causes a terminal device to execute the method for mapping control channel resources according to

Embodiment

1 or 2.

The above devices and methods of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software. The present invention relates to a computer-readable program that, when executed by a logic component, enables the logic component to implement the apparatus or constituent components described above, or enables the logic component to implement various methods described above. Or steps. The present invention also relates to a storage medium for storing the above programs, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.

The methods / devices described in connection with the embodiments of the present invention may be directly embodied as hardware, software modules executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams and / or one or more combinations of functional block diagrams shown in the figure may correspond to each software module of a computer program flow, or to each hardware module. These software modules can respectively correspond to the steps shown in the figure. These hardware modules can be implemented by using a field programmable gate array (FPGA) to cure these software modules.

A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. A storage medium may be coupled to the processor so that the processor can read information from and write information to the storage medium; or the storage medium may be a component of the processor. The processor and the storage medium may reside in an ASIC. This software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if a device (such as a mobile terminal) uses a large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or a large-capacity flash memory device.

For one or more of the functional blocks and / or one or more combinations of the functional blocks described in the drawings, it can be implemented as a general-purpose processor, digital signal processor (DSP) for performing the functions described in the present invention ), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof. One or more of the functional blocks and / or one or more combinations of the functional blocks described with reference to the drawings may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors Processor, one or more microprocessors in conjunction with DSP communications, or any other such configuration.

The present invention has been described above with reference to specific embodiments, but it should be clear to those skilled in the art that these descriptions are all exemplary and do not limit the scope of protection of the present invention. Those skilled in the art can make various variations and modifications to the present invention according to the spirit and principle of the present invention, and these variations and modifications are also within the scope of the present invention.

Regarding implementations including the above examples, the following additional notes are also disclosed:

Attachment 1. A method for mapping control channel resources includes:

Attachment 2. The method according to Attachment 1, wherein the method further comprises:

The sending device uses at least the control channel time domain resource to send the control information to a receiving device to indicate a data channel corresponding to the control information.

Supplementary note 3. The method according to supplementary note 2, wherein the method further comprises:

The sending device sends data information to the receiving device through the data channel.

Supplementary note 4. The method according to any one of supplementary notes 1 to 3, wherein the control channel time domain resources and / or control channel frequency domain resources are resources used for side-link transmission.

Supplementary note 5. The method according to any one of supplementary notes 1 to 4, wherein the number of symbols included in the control channel time domain resource is predetermined.

Supplementary note 6. The method according to any one of supplementary notes 1 to 5, wherein the number of symbols included in the time domain resource of the control channel is L, and L is a positive integer and is less than or equal to the time slot or sub- The number of symbols included in the frame.

Appendix 7. The method according to Appendix 6, wherein the number of symbols included in the time slot or subframe is 14.

Supplementary note 8. The method according to any one of supplementary notes 5 to 7, wherein the transmitting device selects from the control channel resource pool according to a symbol index and the number of symbols included in the control channel time domain resource. Determining the time domain resource candidate set.

Supplementary note 9. The method according to supplementary note 8, wherein the sending device uses a resource in the control channel resource pool whose starting position meets the following conditions as the candidate time domain resource:

SI mod (N * L) = offset;

Supplementary note 10. The method according to supplementary note 9, wherein the symbol index is an index of a symbol in the control channel resource pool, or a symbol belonging to the control channel resource pool in the time slot or subframe. An index of a symbol, or an index of a symbol in the time slot or subframe.

Supplementary note 11. The method according to any one of supplementary notes 1 to 10, wherein the method further comprises:

Determine the time domain resource pool for the control channel.

Supplementary note 12. The method according to supplementary note 11, wherein the time domain resource pool of the control channel is determined according to the time domain resource pool of the data channel; or the time domain resource pool of the control channel and the data channel The time domain resource pool is configured independently.

Appendix 13. The method according to Appendix 11, wherein the time domain resource pool of the control channel is the same as the time domain resource pool of the data channel; or the time domain resource pool of the control channel is configured as all Describe a subset of the time domain resource pool of the data channel.

Supplementary note 14. The method according to any one of supplementary notes 5 to 13, wherein the control information includes time domain resource information of a data channel.

Supplementary note 15. The method according to any one of supplementary notes 1 to 4, wherein the number of symbols included in the time domain resource of the control channel is the same as the number of symbols included in the time domain resource of the data channel, and the The start position of the control channel time domain resource is the same as the start position of the data channel time domain resource.

Supplementary note 16. The method according to supplementary note 15, wherein the number of symbols included in the time domain resource of the control channel is L, and L is a positive integer and is less than or equal to the symbols included in the time slot or subframe Number.

Appendix 17. The method according to Appendix 16, wherein L is one of the following values: 2, 4, 7, 14.

Supplementary note 18. The method according to any one of supplementary notes 15 to 17, wherein the time domain resource pool of the control channel is determined according to the time domain resource pool of the data channel.

Supplementary note 19. The method according to any one of supplementary notes 15 to 18, wherein the control information does not include time domain resource information of a data channel.

Appendix 20: A method for mapping control channel resources, including:

Supplementary note 21, a network device comprising a memory and a processor, said memory storing a computer program, said processor being configured to execute said computer program to implement control according to any one of supplementary notes 1 to 20 Channel resource mapping method.

Supplementary note 22. A terminal device including a memory and a processor, the memory storing a computer program, the processor being configured to execute the computer program to implement the control according to any one of supplementary notes 1 to 20 Channel resource mapping method.

Claims

A mapping device for control channel resources includes:

A candidate determining unit determines a candidate set of time domain resources from a control channel resource pool, and the number of symbols included in each candidate time domain resource in the candidate set of time domain resources is less than or equal to that included in a time slot or a subframe. Number of symbols

A resource selection unit that selects a control channel time domain resource for transmitting control information from the time domain resource candidate set.
The apparatus according to claim 1, wherein the apparatus further comprises:

A control information sending unit that uses at least the control channel time domain resources to send the control information to a receiving device to indicate a data channel corresponding to the control information.
The apparatus according to claim 2, wherein the apparatus further comprises:

A data information sending unit that sends data information to the receiving device through the data channel.
The apparatus according to claim 1, wherein the control channel time domain resource is a resource for side-link transmission.
The apparatus according to claim 1, wherein the number of symbols included in the control channel time domain resource is predetermined.
The apparatus according to claim 1, wherein the number of symbols included in the control channel time domain resource is L, and L is a positive integer and is less than or equal to the number of symbols included in the time slot or subframe.
The apparatus according to claim 1, wherein the candidate determination unit determines the time domain resource candidate set from the control channel resource pool according to a symbol index and a number of symbols included in the control channel time domain resource. .
The apparatus according to claim 7, wherein the candidate determination unit uses a resource in the control channel resource pool whose starting position meets the following conditions as the candidate time domain resource:

SI mod (N * L) = offset;

Where SI is the symbol index, N is a natural number, and L is the number of symbols included in the time domain resource of the control channel; offset is an offset parameter, and offset is greater than or equal to zero and less than or equal to the time slot or subframe The number of symbols included.
The apparatus according to claim 7, wherein the symbol index is an index of a symbol in the control channel resource pool, or an index of a symbol belonging to the control channel resource pool in the time slot or subframe, Or an index of a symbol in the time slot or subframe.
The apparatus according to claim 1, wherein the apparatus further comprises:

A resource pool determining unit determines a time domain resource pool for a control channel.
The apparatus according to claim 10, wherein the time domain resource pool of the control channel is determined according to the time domain resource pool of the data channel; or the time domain resource pool of the control channel and the time domain resource of the data channel The pool is configured independently.
The apparatus according to claim 5, wherein the control information includes time domain resource information of a data channel.
The apparatus according to claim 1, wherein the number of symbols included in the control channel time domain resource is the same as the number of symbols included in the data channel time domain resource, and the start position of the control channel time domain resource It is the same as the starting position of the data channel time domain resource.
The apparatus according to claim 13, wherein the number of symbols included in the control channel time domain resource is L, and L is a positive integer and is less than or equal to the number of symbols included in the time slot or subframe.
The device according to claim 14, wherein L is one of the following values: 2, 4, 7, 14.
The apparatus according to claim 13, wherein the time domain resource pool of the control channel is determined according to the time domain resource pool of the data channel.
The apparatus according to claim 13, wherein the control information does not include time domain resource information of a data channel.
A mapping device for control channel resources includes:

A control information receiving unit that receives control information sent from a transmitting device based on at least a control channel time domain resource, the number of symbols included in the time channel resource of the control channel being less than or equal to the number of symbols included in a time slot or a subframe Number; and

A data information receiving unit that receives data information sent through the data channel according to an instruction of the data channel by the control information.
The apparatus according to claim 18, wherein the number of symbols included in the control channel time domain resource is predetermined, or the number of symbols included in the control channel time domain resource and the data channel time domain resource are The number of symbols included is the same and the start position of the time domain resource of the control channel is the same as the start position of the time domain resource of the data channel.
A communication system includes:

A transmitting device comprising a means for mapping control channel resources according to claim 1; and

The receiving device includes a mapping device for control channel resources according to claim 18.