WO2012130066A1

WO2012130066A1 - Downlink control channel resource indicator, detection method, and device

Info

Publication number: WO2012130066A1
Application number: PCT/CN2012/072694
Authority: WO
Inventors: 陈文洪; 高秋彬; 彭莹
Original assignee: 电信科学技术研究院
Priority date: 2011-03-29
Filing date: 2012-03-21
Publication date: 2012-10-04
Also published as: CN102123432A; CN102123432B

Abstract

Disclosed in the present invention are a downlink control channel resource indicator, a detection method, and a device, comprising: a base station determining the control channel used to transmit to a user equipment or user equipment group control information, and/or having determined physical resources occupied by the dedicated control channel, indicating via signaling to the user equipment or user equipment group the information of the control channel being used and/or the information of the physical resources occupied by the dedicated control channel. The user equipment, having received the signaling transmitted by the base station, detects according to the signaling the control information sent by the base station on the corresponding physical resource. The method of the present invention clearly indicates the physical resources used by the user equipment or user equipment group transmitting control signaling, thereby eliminating the need for the user equipment to perform blind detection on all available resources, decreasing the complexity of blind detection, and increasing capacity of the control channel.

Description

Resource indication and detection method and device for downlink control channel The invention claims to be submitted to the Chinese Patent Office on March 29, 2011, and the application number is 201110076782.3, and the invention name is "a resource indication and detection method and device for downlink control channel" The priority of the Chinese Patent Application, the entire contents of which is incorporated herein by reference. Technical field

The present invention relates to the field of wireless communications, and in particular, to a resource indication and detection method and device for a downlink control channel. Background technique

The current downlink downlink PDCCH (physical downlink control channel) occupies only the first few symbols of a subframe (up to four symbols), and multiple UEs (User Equipments) multiplex the same physical resources. The scheduling information is obtained by performing blind detection in the PDCCH resource, which is called a common control channel.

In the prior art, the UE only needs to perform blind detection on the PDCCH. Summary of the invention

The technical problem to be solved by the present invention is to provide a resource indication method and a base station for a downlink control channel after adding a UE-specific control channel, and a method and a user equipment for detecting a downlink control channel.

The embodiment of the invention provides a resource indication method for a downlink control channel, which includes the following steps:

The base station determines a control channel for transmitting control information to the user equipment UE or group of UEs, and/or determines physical resources occupied by the dedicated control channel;

The base station indicates the information of the control channel and/or the information of the physical resource occupied by the dedicated control channel to the UE or the UE group by signaling. A method for detecting a downlink control channel is provided in the embodiment of the present invention, including the following steps:

The UE receives the signaling sent by the base station, where the signaling is used to indicate the information of the control channel used by the UE or the UE group base station to transmit control information to the UE or the UE group, and/or the information of the physical resource occupied by the dedicated control channel. ;

The UE detects a control signal sent by the base station on the corresponding physical resource according to the signaling. The embodiment of the present invention provides a base station, including:

a determining module, configured to determine a control channel used for transmitting control information to the UE or the UE group, and/or to determine a physical resource occupied by the dedicated control channel;

And an indication module, configured to indicate, by using signaling, information about the control channel, and/or information about physical resources occupied by the dedicated control channel to the UE or the UE group.

A user equipment is provided in the embodiment of the present invention, including:

a receiving module, configured to receive signaling sent by the base station, where the signaling is used to indicate information about a control channel used by the UE or the UE group base station to transmit control information to the UE or the UE group, and/or occupied by the dedicated control channel Information about physical resources;

And a detecting module, configured to detect, according to the signaling, control information sent by the base station on the corresponding physical resource.

The beneficial effects of the present invention are as follows:

In the technical solution provided by the embodiment of the present invention, the base station indicates the information of the control channel and/or the physical resource occupied by the dedicated control channel to the UE or the UE group by using signaling, so that the UE can be corresponding according to the indication. The control information sent by the base station is detected on the physical resource. Since the physical resources used by the UE to transmit control signaling are explicitly indicated, the UE does not need to perform blind detection on all possible resources, reduce the complexity of blind detection, and increase the capacity of the control channel. DRAWINGS

1 is a schematic structural diagram of a PDCCH and a PDSCH of a Relay system according to an embodiment of the present invention; 2 is a schematic flowchart of implementing a resource indication method for a downlink control channel of a base station according to an embodiment of the present disclosure;

3 is a schematic flowchart of a method for detecting a downlink control channel of a UE side according to an embodiment of the present invention;

4 is a schematic structural diagram of a base station according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. detailed description

In the current LTE (Long Term Evolution) and LTE-A (Long Term Evolution-Advanced) systems, the control channel PDCCH can only be transmitted in the first few symbols of one subframe, and the user passes the PDCCH. A blind check is made in the resource to obtain its scheduling information. In order to meet the ever-increasing scheduling signaling requirements, some methods need to be considered to enhance the control channel and increase the capacity to support more user scheduling. One of the methods is a control channel design method similar to the Relay (relay) system.

1 is a schematic structural diagram of a PDCCH and a PDSCH (Physical Downlink Shared Channel) of a Relay system. The PCFICH is a Physical Control Format Indicator Channel (Physical Control Format Indicator Channel) „ PDCCH and PDSCH resource structure of the relay system. As shown in Figure 1, the R-PDCCH (Relay-PDCCH) is used by the base station to transmit control signaling to the Relay, and the R-PDSCH (Relay-PDSCH) is used by the base station to transmit data to the Relay. The Relay receives control signaling. After the R-PDSCH is demodulated, the control signaling and the data are transmitted to the UE by using the PDCCH and the PDSCH, where the R-PDCCH and the R-PDSCH occupy the resources originally used for transmitting the PDSCH. In the R-PDCCH, the Relay can be used. CRS (Cell-specific reference signals) can also be demodulated by DMRS (demodulation reference signal), and configured by the base station through high-level signaling. When demodulating with DMRS, only The scrambling sequence of port 7 and sequence number 0 can be used, where the first time slot of the R-PDCCH is used for transmitting downlink scheduling information, and the second time slot is used for transmitting uplink scheduling. Interest. The base station notifies the physical resources occupied by each Relay control signaling through the high layer signaling, so that the Relay performs blind detection on the corresponding resources to obtain its control information. Since the PDCCH is not transmitted at this time, the Relay only needs to blindly check the R-PDCCH.

In order to increase the capacity of the control channel in the non-relay system, the above scheme can also be introduced into the non-relay system. In this scheme, the base station may separate a part of the resources in the PDSCH for transmitting control signaling to the UE, that is, the UE-specific control channel. At this time, the UE has a common control channel and a dedicated control channel.

In the prior art, the UE only needs to perform blind detection on the PDCCH. However, if such a control channel is introduced, there are two types of control channels for the UE at the same time. Therefore, after the UE-specific control channel is added, the UE needs to know the physical resources occupied by its dedicated control channel. Blind detection is possible, but there is no corresponding technical solution in the prior art for indication. The embodiment of the present invention provides a resource indication and detection scheme for a control channel, which is used to indicate a physical resource used by a base station to transmit control signaling to a UE, and solves a control channel resource indication when a common control channel and a dedicated control channel exist simultaneously. problem.

In the description process, the implementation from the UE and the base station side will be described separately, and the cooperation between the two will be explained at the same time, but this does not mean that the two must cooperate with the implementation. In fact, when the UE is implemented separately from the base station, it also solves the problems existing on the UE side and the base station side respectively, but when the two are used in combination, a better technical effect is obtained.

2 is a schematic flowchart of a method for implementing resource indication on a downlink control channel of a base station. As shown in the figure, the base station side may include the following steps when indicating:

Step 201: The base station determines a control channel used for transmitting control information to the UE or the UE group, and/or determines a physical resource occupied by the dedicated control channel;

Step 202: The base station indicates, by using signaling, the information of the control channel and/or the information of the physical resource occupied by the dedicated control channel to the UE or the UE group.

3 is a schematic flowchart of a method for detecting a downlink control channel of a UE side. Correspondingly, as shown in the figure, the UE side may include the following steps when detecting:

Step 301: The UE receives signaling sent by the base station, where the signaling is used to indicate the UE. Or information of a control channel used by the UE group base station to transmit control information to the UE or the UE group, and/or information of physical resources occupied by the dedicated control channel;

Step 302: The UE detects, according to the signaling, control information sent by the base station on the corresponding physical resource.

In the implementation, on the base station side, the base station indicates the physical resources occupied by the common control channel and/or the dedicated control channel to the UE or the UE group by signaling. The control channel used by the UE or the UE group may include at least the following three possibilities:

1. Only use the common control channel;

2. Only the exclusive control channel is used;

3. A common control channel and a dedicated control channel are used at the same time.

The information of the physical resources occupied by the dedicated control channel may include:

Frequency domain resource information and/or carrier information.

On the UE side, the UE may detect its control information on the corresponding physical resource, and then send or receive data according to the control information.

In implementation, the signaling used to indicate may be PDCCH signaling and/or higher layer signaling. In the implementation, PDCCH signaling and/or high-level signaling is taken as an example, because in the current communication means, the two signalings are the most commonly used and the easiest to implement, so PDCCH signaling and/or higher layer signaling are used here. For example, it is possible to use other signaling or message and communication means. It is only necessary to use the information of the control channel used by the base station to transmit control information to the UE or UE group, and/or The physical resources occupied by the dedicated control channel inform the UE that the UE can perform detection according to the signaling. Therefore, PDCCH signaling and/or higher layer signaling is only used to teach those skilled in the art how to implement the present invention, but it does not mean that only PDCCH signaling and/or higher layer signaling can be used, and the implementation process can be determined in combination with practical needs. The corresponding technical means.

The following describes how to implement PDCCH signaling and/or higher layer signaling.

First, high-level signaling instructions

1. On the base station side, the information of the control channel is indicated by the base station through high layer signaling. When shown to the UE or UE group, it may include:

The base station indicates, by using the high layer signaling, which control channel is used to transmit the control information to the UE or the UE group;

Or, the base station uses the high layer signaling to detect whether the dedicated control channel indication needs to be detected to the UE or the UE group.

In the implementation, the indication of the physical resources occupied by the dedicated control channel may also be indicated by higher layer signaling.

2. On the UE side, correspondingly, when the signaling received by the UE is the high layer signaling, the UE detects the control information sent by the base station on the corresponding physical resource according to the signaling, and may include:

The UE determines, according to the indication of the high layer signaling, which control channel is used to transmit the control information;

Or, the UE determines, according to the indication of the high layer signaling, whether the dedicated control channel needs to be detected. In the implementation, when the dedicated control channel is used, the physical resource occupied by the dedicated control channel indicated by the high layer signaling may be detected.

In a specific implementation, the base station may indicate, by using the high layer signaling, the control information of the UE that uses the common control channel (Common PDCCH) and/or the dedicated control channel (UE-specific PDCCH) to the UE or the UE group, or The information of the dedicated control channel needs to be detected to the UE or the UE group, and the physical resources occupied by the dedicated control channel are indicated to the UE or the UE group by using the high layer signaling.

For example: the base station indicates whether to use the common control channel or the dedicated control channel transmission control information to the UE or the UE group by using 1-bit high-level signaling. If the control information of the UE or the UE group is transmitted by using the dedicated control channel, the UE according to the high-level letter The resource indication information of the dedicated control channel included in the command blindly checks its own scheduling information on the corresponding resource. For example, in the high layer signaling, the PRB (physical resource block) 1-4 transmission control signaling is indicated on the current carrier, and the UE blindly checks its own control information on the resource.

Second, PDCCH signaling indication mode one

1. On the base station side, the base station transmits the signal of the control channel by using PDCCH signaling. When the information is indicated to the UE or the UE group, the information may include:

The base station indicates, by using PDCCH signaling, which control channel the transmission control information is used to the UE or the UE group;

Or, the base station indicates, by using PDCCH signaling, whether information about the dedicated control channel needs to be detected to the UE or the UE group.

In the implementation, the DCI format (DCI: Downlink Control Indicator) may include information of multiple UEs, and each UE obtains its own indication information. Similarly, in the implementation, the indication of the physical resources occupied by the dedicated control channel can also be indicated by higher layer signaling.

2. On the UE side, correspondingly, when the signaling received by the UE is PDCCH signaling, the UE may determine, according to the indication of the PDCCH signaling, which control channel is used to transmit control information; or, the UE determines whether according to the indication of the PDCCH signaling. Need to detect the exclusive control channel.

In implementation, the UE receives the information of the multiple DCI formats that may include multiple UEs at the same time, and the UE needs to obtain its own indication information. In the implementation, the detection may be performed according to the physical resources occupied by the dedicated control channel indicated by the high layer signaling.

For example, the base station transmits a common DCI format through the PDCCH, and indicates the control channel information used by a group of UEs in a manner similar to DCI format 3/3A. The format can be as follows:

[Control channel indication information 1 Control channel indication information 2 .... Control channel indication information M]

Each indication information corresponds to one UE, and the mapping relationship between the indication information index (index) and the UE is notified by the high layer signaling. The UE learns the control channel used by the base station from this format, and then performs detection on the corresponding resource. The base station can allocate UEs on different control channels according to the resource size.

If the control information of the UE is transmitted by using the dedicated control channel, the UE may blindly check its own scheduling information on the corresponding resource according to the resource indication information of the dedicated control channel included in the high layer signaling. For example, if the high-level signaling indicates the PRB1-4 transmission control signaling on the current carrier, the UE blindly checks its own control signal on the resource. Third, PDCCH signaling indication mode two

On the base station side, when the base station indicates the information of the control channel and the physical resources occupied by the dedicated control channel to the UE or the UE group by using the PDCCH signaling, the base station may include:

The base station indicates, by using PDCCH signaling, which control channel is used to transmit the control information to the UE or the UE group, and when the dedicated control channel is used, indicates the information of the physical resource occupied by the dedicated control channel;

Or, the base station indicates, by using the PDCCH signaling, whether the information of the dedicated control channel needs to be detected to the UE or the UE group, and when the dedicated control channel needs to be detected, the information of the physical resource occupied by the dedicated control channel is indicated.

In this manner, the information of the physical resource occupied by the dedicated control channel is indicated by the PDCCH signaling.

2. On the UE side, correspondingly, when the signaling received by the UE is the PDCCH signaling, the UE detects the control information sent by the base station on the corresponding physical resource according to the signaling, and may include:

The UE determines, according to the indication of the PDCCH signaling, which control channel is used to transmit control information, and when using the dedicated control channel, performs detection according to the information of the physical resource occupied by the dedicated control channel indicated by the PDCCH signaling;

Or, the UE determines, according to the indication of the PDCCH signaling, whether the dedicated control channel needs to be detected. When the dedicated control channel needs to be detected, the UE performs detection according to the information of the physical resource occupied by the dedicated control channel indicated by the PDCCH signaling.

In a specific implementation, the base station can simultaneously indicate the information of the used control channel and the physical resources occupied by the dedicated control channel by using a DCI format. When determining that the dedicated control channel needs to be detected, the UE performs detection of the control information according to the information of the physical resources occupied by the exclusive control channel received at the same time.

Fourth, PDCCH signaling indication mode three

1. On the base station side, when the base station indicates the information of the control channel and the physical resources occupied by the dedicated control channel to the UE or the UE group through PDCCH signaling, To include:

The base station indicates the information of the physical resources occupied by the dedicated control channel to the UE or the UE group through PDCCH signaling.

When detecting the information of the physical resource occupied by the dedicated control channel in the PDCCH signaling, the UE performs detection according to the information of the physical resource occupied by the dedicated control channel indicated by the PDCCH signaling.

In a specific implementation, the base station may indicate, by using the PDCCH, the physical resources occupied by the dedicated control channel to be directed to one UE or the UE group. Multiple UEs can share the same resource indication information and occupy the same dedicated control channel.

For example, the UE performs blind detection on the PDCCH. If the DCI format including the scheduling information is detected, the uplink data transmission or the downlink data reception is performed according to the scheduling information. If the DCI format including the dedicated control channel resource indication information is detected, The frequency domain resource occupied by the dedicated control channel indicated by the indication information detects the control information transmitted by the base station. Since only resource information is indicated, the overhead of controlling the signaling is relatively small.

Based on the same inventive concept, the embodiment of the present invention further provides a base station and a user equipment. The principle of solving the problem is similar to the resource indication and detection method of the downlink control channel and the detection method of the downlink control channel. Therefore, the implementation of these devices can be referred to the implementation of the method, and the repeated description will not be repeated.

4 is a schematic structural diagram of a base station. As shown in the figure, the base station may include: a determining module 401, configured to determine a control channel used for transmitting control information to the UE or the UE group, and/or determine a physical resource occupied by the dedicated control channel;

The indication module 402 is configured to indicate, by signaling, information about the control channel of the UE or the UE group, and/or information of physical resources occupied by the dedicated control channel.

In an implementation, the determining module may be further configured to determine the control channel including a common control channel and/or a dedicated control channel. In implementation, the determining module may be further configured to determine information of the physical resource including frequency domain resource information and/or carrier information.

In an implementation, the indication module may be further configured to indicate the UE or the UE group by using PDCCH signaling and/or higher layer signaling.

In an implementation, the indication module may be further configured to: when the information of the control channel is indicated to the UE or the UE group by the high layer signaling, what kind of control channel is used to indicate the control channel to the UE or the UE group by using the high layer signaling; Or, whether the dedicated control channel indication needs to be detected to the UE or the UE group by the high layer signaling.

In an implementation, the indication module may be further configured to: when the information of the control channel is indicated by the PDCCH signaling to the UE or the UE group, use the control channel to indicate the control channel to the UE or the UE group by using PDCCH signaling; Or, whether the dedicated control channel indication needs to be detected to the UE or the UE group by using PDCCH signaling.

In an implementation, the indication module may be further configured to: when the information about the control channel and the physical resource occupied by the dedicated control channel are indicated by the PDCCH signaling to the UE or the UE group, where the transmission control information is adopted by using PDCCH signaling The control channel is indicated to the UE or the UE group, and when the dedicated control channel is used, the information indicating the physical resource occupied by the dedicated control channel is indicated; or the information indicating whether the dedicated control channel needs to be detected is indicated to the UE or the UE group by using PDCCH signaling. When the dedicated control channel needs to be detected, the information indicating the physical resource occupied by the dedicated control channel is indicated; or the information of the physical resource occupied by the dedicated control channel is indicated to the UE or the UE group by using PDCCH signaling.

5 is a schematic structural diagram of a user equipment. As shown in the figure, the UE may include: a receiving module 501, configured to receive signaling sent by a base station, where the signaling is used to indicate that the UE or the UE group base station is transmitting to the UE or the UE group. Information on the control channel used to control the information, and/or information on the physical resources occupied by the dedicated control channel;

The detecting module 502 is configured to detect, according to the signaling, control information sent by the base station on the corresponding physical resource.

In an implementation, the receiving module is further configured to receive signaling sent by the base station, where the control channel includes a common control channel and/or a dedicated control channel. In an implementation, the receiving module may be further configured to receive signaling sent by the base station, where the information of the physical resource occupied by the dedicated control channel includes frequency domain resource information and/or carrier information.

In an implementation, the receiving module may be further configured to receive PDCCH signaling and/or high layer signaling sent by the base station.

In an implementation, the detecting module may be further configured to determine, according to the indication of the high layer signaling, which control channel is used to transmit the control information when the received signaling is the high layer signaling, or determine whether the exclusive detection is required according to the indication of the high layer signaling. Control channel.

In an implementation, the detecting module may be further configured to: when the received signaling is PDCCH signaling, determine, according to the indication of the PDCCH signaling, which control channel is used to transmit the control information; or, according to the indication of the PDCCH signaling, determine whether the exclusive detection is required. Control channel.

In an implementation, the detecting module may be further configured to: when the received signaling is PDCCH signaling, when detecting, according to the signaling, the control information sent by the base station on the corresponding physical resource, determine, according to the indication of the PDCCH signaling, which control is used. The channel transmission control information is detected according to the information of the physical resource occupied by the dedicated control channel indicated by the PDCCH signaling when the dedicated control channel is used; or, according to the indication of the PDCCH signaling, whether the dedicated control channel needs to be detected is required to be detected. When the control channel is dedicated, the detection is performed according to the information of the physical resource occupied by the dedicated control channel indicated by the PDCCH signaling; or, when the information indicating the physical resource occupied by the dedicated control channel is included in the PDCCH signaling, according to the PDCCH signaling The information of the physical resources occupied by the indicated dedicated control channel is detected.

For convenience of description, the various parts of the above described devices are described separately by function into various modules or units. Of course, the functions of the various modules or units may be implemented in one or more software or hardware in the practice of the invention.

After the dedicated control channel is added, the base station can notify the UE or the UE group of the physical resources occupied by the dedicated control channel by using the high layer signaling. In this case, the UE first needs to blindly detect the common control information in the common search space, and then blindly check out its own control information through the common control channel or the dedicated control channel. That is, if one The UEs are configured with a dedicated control channel, for which there is a common control channel and a dedicated control channel. The UE needs to perform blind detection of the UE search space on both resources, which will greatly increase the blind detection complexity of the UE. .

At the same time, for a UE that has multiple downlink carriers, it is also required to indicate carrier information where the dedicated control channel is located, and support cross-carrier scheduling of the dedicated control channel, and the current scheme does not support multiple downlink carriers, and the carrier of the dedicated control channel Information indication and cross-carrier scheduling.

Moreover, the resources of the dedicated control channel are indicated to the UE or the UE group through the high layer signaling, which is inflexible and cannot be dynamically indicated.

In the embodiment of the present invention, the resource indication and the detection scheme of the downlink control channel are provided, and the control channel used for the control signaling transmission of the UE or the UE group and the physical resources occupied by the corresponding control channel may be indicated. Specifically, the high-level signaling or the PDCCH signaling may be used to indicate the control channel used by the terminal to transmit the control information; and the PDCCH signaling is used to indicate the physical resources occupied by the terminal's exclusive control channel.

The technical solution provided in the embodiment of the present invention explicitly indicates the physical resources (common control channel and dedicated control channel) used by the UE or the UE group to transmit control signaling, so that the UE does not need to perform blind detection on all possible resources, thereby reducing blindness. Check the complexity and increase the capacity of the control channel;

Further, the resources of the dedicated control channel used by the UE or the UE group may be dynamically indicated to improve scheduling flexibility;

At the same time, the resource allocation of the dedicated control channel in the cross-carrier mode can also be supported.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present invention is directed to a method, apparatus (system), and meter according to an embodiment of the present invention. A flowchart and/or block diagram of a computer program product is described. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Although the preferred embodiment of the invention has been described, it will be apparent to those skilled in the < Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and Without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

Rights request

A resource indication method for a downlink control channel, which is characterized by the following steps:

The base station determines a control channel used for transmitting control information to the user equipment UE or group of UEs, and/or determines physical resources occupied by the dedicated control channel;

The base station indicates the information of the control channel and/or the information of the physical resources occupied by the dedicated control channel to the UE or the UE group by signaling.

2. The method of claim 1, wherein the control channel comprises: a common control channel and/or a dedicated control channel.

The method of claim 1, wherein the information about the physical resources occupied by the dedicated control channel comprises: frequency domain resource information and/or carrier information.

The method according to any one of claims 1 to 3, wherein the signaling comprises: physical downlink control channel PDCCH signaling and/or higher layer signaling.

The method according to claim 4, wherein: when the base station indicates the information of the control channel to the UE or the UE group by using the high-layer signaling, the method includes:

The base station indicates, by using the high layer signaling, the transmission control information to the UE or the UE group, which control channel is used;

The method according to claim 4, wherein when the base station indicates the information of the control channel to the _UE or the _UE group by using PDCCH signaling, the method includes:

The base station indicates, by using PDCCH signaling, the transmission control information to the UE or the UE group, which control channel is used;

Or, the base station uses the PDCCH signaling to detect whether the dedicated control channel indication needs to be detected to the UE or the UE group.

The method according to claim 4, wherein when the base station indicates the information of the control channel and the information of the physical resource occupied by the dedicated control channel to the UE or the UE group by using the PDCCH signaling, the method includes: The base station indicates, by using PDCCH signaling, which control channel is used to transmit the control information to the UE or the UE group, and when the dedicated control channel is used, indicates the information of the physical resource occupied by the dedicated control channel;

Or, the base station indicates, by using the PDCCH signaling, whether the information of the dedicated control channel needs to be detected to the UE or the UE group, and when the dedicated control channel needs to be detected, indicating the information of the physical resource occupied by the dedicated control channel;

Or, the base station indicates, by using PDCCH signaling, information about physical resources occupied by its dedicated control channel to the UE or the UE group.

A method for detecting a downlink control channel, comprising the following steps: the UE receives signaling sent by a base station, where the signaling is used to indicate that the UE or the UE group base station uses the control information when transmitting the control information to the UE or the UE group. Information of the control channel, and/or information of physical resources occupied by the dedicated control channel;

The UE detects the control signal sent by the base station on the corresponding physical resource according to the signaling.

9. The method of claim 8, wherein the control channel comprises: a common control channel and/or a dedicated control channel.

The method according to claim 8, wherein the information about the physical resources occupied by the dedicated control channel comprises: frequency domain resource information and/or carrier information.

The method according to any one of claims 8 to 10, wherein the signaling comprises: PDCCH signaling and/or higher layer signaling.

The method according to claim 11, wherein when the signaling received by the UE is high layer signaling, the UE determines, according to the indication of the high layer signaling, which control channel is used to transmit the control information; or, the UE according to the high layer letter The indication of the order determines if a dedicated control channel needs to be detected.

The method according to claim 11, wherein, when the signaling received by the UE is PDCCH signaling, the UE determines, according to the indication of the PDCCH signaling, which control channel is used to transmit control information; or, the UE according to the PDCCH signal The indication of the order determines if a dedicated control channel needs to be detected.

14. The method of claim 11 wherein the message received at the UE When the PDCCH is signaling, the UE detects the control information sent by the base station on the corresponding physical resource according to the signaling, including:

The UE determines, according to the indication of the PDCCH signaling, which control channel is used to transmit the control information, and when the dedicated control channel is used, performs detection according to the information of the physical resource occupied by the dedicated control channel indicated by the PDCCH signaling;

Or, the UE determines, according to the indication of the PDCCH signaling, whether the dedicated control channel needs to be detected, and when the dedicated control channel needs to be detected, performs detection according to the information of the physical resource occupied by the dedicated control channel indicated by the PDCCH signaling;

Or, when detecting the information of the physical resource occupied by the dedicated control channel in the PDCCH signaling, the UE performs detection according to the information of the physical resource occupied by the dedicated control channel indicated by the PDCCH signaling.

A base station, comprising:

The base station according to claim 15, wherein the determining module is further configured to determine the control channel including a common control channel and/or a dedicated control channel.

The base station according to claim 15, wherein the determining module is further configured to determine information of the physical resource including frequency domain resource information and/or carrier information.

The base station according to any one of claims 15 to 17, wherein the indication module is further configured to indicate the UE or the UE group by using PDCCH signaling and/or higher layer signaling.

The base station according to claim 18, wherein the indication module is further configured to: when the information of the control channel is indicated to the UE or the UE group by using the high layer signaling, The control channel is indicated to the UE or the UE group; or, by the higher layer signaling, whether the dedicated control channel indication needs to be detected to the UE or the UE group.

The base station according to claim 18, wherein the indication module is further configured to: when the information of the control channel is indicated to the UE or the UE group by using PDCCH signaling, what is the transmission control information adopted by the PDCCH signaling Control channel indication to the UE Or the UE group; or, whether the dedicated control channel indication needs to be detected to the UE or the UE group by PDCCH signaling.

The base station according to claim 18, wherein the indication module is further configured to: indicate, by using PDCCH signaling, the information of the control channel and the information of the physical resource occupied by the dedicated control channel to the UE or the UE group. When the PDCCH signal is used, the control information is used to indicate to the UE or the UE group, and when the dedicated control channel is used, the information of the physical resources occupied by the dedicated control channel is indicated; or, whether the PDCCH signaling is needed The information of the dedicated control channel is indicated to the UE or the UE group, and when the dedicated control channel needs to be detected, the information of the physical resource occupied by the dedicated control channel is indicated; or the information of the physical resource occupied by the dedicated control channel is used by the PDCCH signaling. Indicated to the UE or UE group.

22. A user equipment, comprising:

The user equipment according to claim 22, wherein the receiving module is further configured to receive signaling sent by the base station, where the control channel includes a common control channel and/or a dedicated control channel.

The user equipment according to claim 22, wherein the receiving module is further configured to receive signaling sent by the base station, where the information of the physical resource occupied by the dedicated control channel includes frequency domain resource information and / or carrier information.

The user equipment according to any one of claims 22 to 24, wherein the receiving module is further configured to receive PDCCH signaling and/or higher layer signaling sent by the base station.

The user equipment according to claim 25, wherein the detecting module is further configured to determine, according to the indication of the high layer signaling, which control channel is used to transmit the control information when the received signaling is high layer signaling; or It is determined according to the indication of the high layer signaling whether it is necessary to detect the dedicated control channel.

The user equipment according to claim 25, wherein the detecting module is further configured to: when the received signaling is PDCCH signaling, determine, according to an indication of the PDCCH signaling, which control channel is used to transmit the control information; or It is determined according to the indication of the PDCCH signaling whether it is necessary to detect the dedicated control channel.

The user equipment according to claim 25, wherein the detecting module is further configured to: when the received signaling is PDCCH signaling, and detect, according to the signaling, the control information sent by the base station on the corresponding physical resource, Determining, according to the indication of the PDCCH signaling, which control channel is used to transmit the control information, and when using the dedicated control channel, detecting according to the information of the physical resource occupied by the dedicated control channel indicated by the PDCCH signaling; or, according to the indication of the PDCCH signaling Determining whether the dedicated control channel needs to be detected, when detecting the dedicated control channel, detecting according to the information of the physical resource occupied by the dedicated control channel indicated by the PDCCH signaling; or detecting that the PDCCH signaling includes the exclusive control channel When the information of the physical resource is detected, the information is detected according to the information of the physical resource occupied by the dedicated control channel indicated by the PDCCH signaling.