WO2013037272A1 - Method, user equipment, and base station for transmitting scheduling information - Google Patents

Abstract

A method, user equipment, and base station for transmitting scheduling information. The method comprises: generating a random number corresponding to the user equipment on the basis of a predetermined rule; and, when the random number is determined to be within a preconfigured scheduling interval, performing a blind detection on a control signal in a specific search space of the user equipment for acquiring the scheduling information of the user equipment. The user equipment comprises a generation module and a detection module. The base station comprises a generation module and a first transmission module. Prior to performing the detection for or transmission of the control signal, by determining if a detection or transmission condition is met, by determining a format used by the control signal, and by determining the location of the control signal, the method, user equipment, and base station of embodiments of the present invention for transmitting the scheduling information allow for effectively reduced number of blind detections performed on the control channel by the user equipment, thus conserving power for the user equipment, reducing energy consumption, thereby allowing for further enhanced user experience.

Description

 Method for transmitting scheduling information, user equipment, and base station

 This application claims priority to Chinese Patent Application No. 201110275231.X, filed on September 15, 2011, entitled "Methods for transmitting scheduling information, user equipment and base stations", the entire contents of which are incorporated by reference. Combined in this application.

Technical field

 The present invention relates to the field of communications, and in particular, to a method, a user equipment, and a base station for transmitting scheduling information in the field of communications. Background technique

 In the Long Term Evolution (LTE) system, each user equipment (User Equipment, referred to as "UE") in the Transmission Time Interval ("Transmission Time Interval") is detected by physical downlink control. A channel (Physical Downlink Control Channel, referred to as "PDCCH"), obtains data domain partial scheduling information in the TTI, or a scheduling grant corresponding to one uplink subframe.

The PDCCH is a physical downlink control channel, which is located in the control domain part of the time-frequency resource in one subframe, and occupies the first Orthogonal Frequency Division Multiplexing (OFDM) in one subframe. The symbol is indicated by a Physical Control Format Indicator Channel (PCFICH), where 0<N<3, N can be 4 when the system bandwidth is 1.4M, and the system bandwidth is occupied in the frequency domain. All available subcarriers, where the available subcarriers refer to the removal of the PCFICH, the hybrid automatic repeat request physical indication channel (Physical HARQ Indicator Channel, referred to as "PHICH", where Hybrid Automatic Repeat Request is simply referred to as "HARQ") and reference The subcarrier occupied by the signal. An OFDM symbol in the time domain dimension, a resource indicated by one subcarrier in the frequency domain dimension is referred to as a resource element (Resource Element, referred to as "RE"), and 4 REs constitute a resource element group (Resource Element Group, referred to as For "REG"). For the PDCCH, a Control Channel Element ("CCE") is also defined, and one CCE is fixed to contain 9 REGs. For example, when the system bandwidth is 5M, there are 25 physical resource blocks in the frequency domain. (Physical Resource Block, referred to as "PRB"), 12 subcarriers in a PRB frequency domain, 0.5 ms in the time domain, fixed resource mapping mode of PCFICH, PHICH, and reference signals. The UE first detects according to a fixed resource mapping manner. The PCFICH obtains the number N of OFDM symbols occupied by the PDCCH, for example, N=2, and includes a total of 600 REs, that is, 150 REGs. If the PCFICH, PHICH, and reference signals occupy 57 REGs together, the resources available for the PDCCH are 93 REGs, that is, about 10 CCEs.

 The PDCCH channel has four formats, and the number of resources occupied by the PDCCH channel in different formats is different, that is, the aggregation level (Aggregation Level, referred to as "AL") is different. The content carried on the PDCCH channel is called Downlink Control Information (DCI). The size of the DCI is fixed. Different code rates are obtained by using different PDCCH formats. For example, the code rate of using format 2 is Use format 2 twice the code rate. The smaller the number of occupied CCEs, the higher the code rate, and the better the channel conditions of the UE are required, so as to improve the probability that the UE correctly decodes the PDCCH channel with a high code rate. That is, if the channel condition of the UE is poor, only low-rate transmission can be selected, for example, a format in which the PDCCH occupies a large number of CCEs is selected. In addition, the UE does not need to perform blind detection on a PDCCH channel with a code rate exceeding 3/4. According to different channel conditions of the UE, different high-level UEs may be configured to configure different transmission modes, and the transmission modes are different, and the corresponding DCIs have different sizes. In addition to the current transmission mode configured by the upper layer, each UE can also use the fallback mode by default, and the size of the corresponding DCI is different from the DCI size corresponding to the current mode.

In a TTI, the UE cannot know which transmission mode is used in the TTI before the detection. The specific transmission mode needs to be determined by performing PDCCH blind detection. The PDCCH channel has four formats, and the UE cannot know before the detection. The format used by the PDCCH channel of the PDCCH channel, which needs to be determined after the PDCCH blind detection is performed. In addition, the PDCCH channel for one UE may have multiple candidate locations, and the PDCCH channel needs to be PDCCH blind through the UE. Can be determined after testing. Therefore, the UE does not know the DCI size, is unaware of the PDCCH format, and is unaware of the specific location of the PDCCH. All of the information needs to be detected by the UE for all possible situations, that is, after blind detection. This scheduling mechanism is given to the base station (Evolved The Node Base-station (abbreviated as "eNB") has a large scheduling flexibility, but the disadvantage is that the UE needs to perform multiple blind detections, which increases the blind detection complexity of the UE, and increases the energy consumption and cost of the UE. Summary of the invention

 The embodiment of the invention provides a method for transmitting scheduling information, a user equipment and a base station, which can effectively reduce the number of times the user equipment performs blind detection on the control channel.

 In an aspect, the embodiment of the present invention provides a method for transmitting scheduling information, where the method includes: generating a random number corresponding to a user equipment according to a predetermined rule; and determining that the random number is located in a pre-configured scheduling interval, the user The control channel in the device-specific search space performs blind detection to obtain scheduling information of the user equipment.

 On the other hand, an embodiment of the present invention provides a method for transmitting scheduling information, where the method includes: generating a random number corresponding to a user equipment to be scheduled according to a predetermined rule; and determining that the random number is located in a pre-configured scheduling interval, The scheduling information of the to-be-scheduled user equipment is sent to the to-be-scheduled user equipment by using the control channel in the search space specified by the user equipment to be scheduled.

 In another aspect, the embodiment of the present invention provides a method for transmitting scheduling information, where the method includes: receiving radio resource control RRC signaling sent by a base station, where the RRC signaling includes a first format set used by a control channel; And indicating, by the physical layer scheduling format, format indication information sent by the channel, where the format indication information indicates a second format set used by the control channel in the current transmission time interval; and matching according to the first format set and the second format set The control channel format performs blind detection on the control channel in the search space of the user equipment to obtain scheduling information of the user equipment.

In a further aspect, the embodiment of the present invention provides a method for transmitting scheduling information, where the method includes: transmitting, to a user equipment, radio resource control RRC signaling, where the RRC signaling includes a first format set used by a control channel; The layer scheduling format indication channel sends format indication information to the user equipment, where the format indication information indicates a second format set used by the control channel in the current transmission time interval; and the control channel in the search space specified by the user equipment The user equipment sends scheduling information, where the control channel in the specific search space of the user equipment uses the first format set and the second format The matching control channel format in the set.

 In a further aspect, the embodiment of the present invention provides a method for transmitting scheduling information, where the method includes: determining a CCE aggregation level set of a first control channel unit used by a control channel in a current transmission time interval, and aggregating with the first CCE The quantity information and the location information of the corresponding control channel of each CCE aggregation level in the level set; determining the CCE aggregation level of the first CCE aggregation level set and the third CCE aggregation level set indicated by the high layer signaling as a second CCE aggregation level set used by the control channel carrying the scheduling information of the user equipment; and blinding the control channel in the search space specific to the user equipment according to the quantity information, the location information, and the second CCE aggregation level set Detecting to obtain the scheduling information of the user equipment.

 In a further aspect, the embodiment of the present invention provides a method for transmitting scheduling information, where the method includes: determining a CCE aggregation level set of a first control channel unit used by a control channel in a current transmission time interval, and aggregating with the first CCE The quantity information and the location information of the corresponding control channel of each CCE aggregation level in the level set; matching the first CCE aggregation level set with the third CCE aggregation level set sent by the high layer signaling to the first user equipment The CCE aggregation level is determined to be a second CCE aggregation level set used by the control channel that carries the scheduling information of the first user equipment; and the first user is used according to the quantity information, the location information, and the second CCE aggregation level set. The control channel in the device-specific search space sends the scheduling information to the first user equipment.

 In a further aspect, the embodiment of the present invention provides a user equipment, where the user equipment includes: a generating module, configured to generate a random number corresponding to the user equipment according to a predetermined rule; and a detecting module, configured to determine, in the generating module, When the random number is located in the pre-configured scheduling interval, the control channel in the search space specific to the user equipment is blindly detected to obtain scheduling information of the user equipment.

In a further aspect, the embodiment of the present invention provides a base station, where the base station includes: a generating module, configured to generate a random number corresponding to the user equipment to be scheduled according to a predetermined rule; and a first sending module, configured to determine that the generating module generates When the random number is located in the pre-configured scheduling interval, the scheduling information of the to-be-scheduled user equipment is sent to the to-be-scheduled user equipment by using the control channel in the search space of the user equipment to be scheduled. In another aspect, the embodiment of the present invention provides a user equipment, where the user equipment includes: a first receiving module, configured to receive radio resource control RRC signaling sent by a base station, where the RRC signaling includes a first used by a control channel a second receiving module, configured to receive format indication information sent by the base station by using a physical layer scheduling format indication channel, where the format indication information indicates a second format set used by the control channel in a current transmission time interval; And performing blind detection on a control channel in a search space specific to the user equipment according to the matched control channel format in the first format set and the second format set, to obtain scheduling information of the user equipment.

 In another aspect, an embodiment of the present invention provides a base station, where the base station includes: a first sending module, configured to send, to a user equipment, radio resource control RRC signaling, where the RRC signaling includes a first format set used by a control channel a second sending module, configured to send format indication information to the user equipment by using a physical layer scheduling format indication channel, where the format indication information indicates a second format set used by the control channel in a current transmission time interval; And transmitting, by using a control channel in a specific search space of the user equipment, scheduling information to the user equipment, where the control channel in the user equipment-specific search space uses the first format set and the second format set Matched control channel format.

 In a further aspect, the embodiment of the present invention provides a user equipment, where the user equipment includes: a first determining module, configured to determine a CCE aggregation level set of a first control channel unit used by a control channel in a current transmission time interval, and The first CCE aggregation level set and the third CCE indicated by the high layer signaling are aggregated by the first CCE aggregation level set and the third CCE indicated by the high layer signaling level. a matching CCE aggregation level in the level set, which is determined to be a second CCE aggregation level set used by the control channel carrying the scheduling information of the user equipment; and a detecting module, configured to use, according to the quantity information, the location information, and the second CCE The aggregation level set performs blind detection on the control channel in the search space specific to the user equipment to obtain the scheduling information of the user equipment.

In a further aspect, the embodiment of the present invention provides a base station, where the base station includes: a first determining module, configured to determine a CCE aggregation level set of a first control channel unit used by a control channel in a current transmission time interval, and the same Corresponding control for each CCE aggregation level in a CCE aggregation level set a quantity determining information and a location information of the channel; a second determining module, configured to determine the CCE aggregation level of the first CCE aggregation level set and the third CCE aggregation level set sent by the high layer signaling to the first user equipment, a second CCE aggregation level set used by the control channel that carries the scheduling information of the first user equipment; a sending module, configured to pass the first user according to the quantity information, the location information, and the second CCE aggregation level set The control channel in the device-specific search space sends the scheduling information to the first user equipment.

 Based on the foregoing technical solution, the method for transmitting scheduling information, the user equipment, and the base station in the embodiment of the present invention determines whether the detection or transmission condition is met, determines the format of the control channel, and determines the control before detecting or transmitting the control channel. The location of the channel can effectively reduce the number of blind detections of the control channel by the user equipment, save power of the user equipment, and reduce energy consumption, thereby further improving the user experience. DRAWINGS

 In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

 FIG. 1 is a schematic structural diagram of a control channel of different CCE aggregation levels.

 FIG. 2 is a schematic flowchart of a method for transmitting scheduling information according to an embodiment of the present invention.

 FIG. 3 is another schematic flowchart of a method for transmitting scheduling information according to an embodiment of the present invention. FIG. 4 is still another schematic flowchart of a method for transmitting scheduling information according to an embodiment of the present invention. FIG. 5 is still another schematic flowchart of a method for transmitting scheduling information according to an embodiment of the present invention. FIG. 6 is a schematic flowchart of a method for transmitting scheduling information according to another embodiment of the present invention. FIG. 7 is another schematic flowchart of a method of transmitting scheduling information according to another embodiment of the present invention.

FIG. 8 is still another schematic flow of a method for transmitting scheduling information according to another embodiment of the present invention. Figure.

 FIG. 9 is still another schematic flowchart of a method of transmitting scheduling information according to another embodiment of the present invention.

 FIG. 10 is a schematic flowchart of a method for transmitting scheduling information according to still another embodiment of the present invention. FIG. 11 is another schematic flowchart of a method of transmitting scheduling information according to still another embodiment of the present invention.

 FIG. 12 is a schematic block diagram of a user equipment according to an embodiment of the present invention.

 FIG. 13 is another schematic block diagram of a user equipment according to an embodiment of the present invention.

 FIG. 14 is a schematic block diagram of a base station according to an embodiment of the present invention.

 FIG. 15 is another schematic block diagram of a base station according to an embodiment of the present invention.

 FIG. 16 is a schematic block diagram of a user equipment according to another embodiment of the present invention.

 FIG. 17 is another schematic block diagram of a user equipment according to another embodiment of the present invention.

 FIG. 18 is a schematic block diagram of a base station according to another embodiment of the present invention.

 FIG. 19 is another schematic block diagram of a base station according to another embodiment of the present invention.

 FIG. 20 is a schematic block diagram of a user equipment according to still another embodiment of the present invention.

 FIG. 21 is another schematic block diagram of a user equipment according to still another embodiment of the present invention.

 FIG. 22 is a schematic block diagram of a base station according to still another embodiment of the present invention.

 FIG. 23 is another schematic block diagram of a base station according to still another embodiment of the present invention. detailed description

 BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

It should be understood that the technical solution of the present invention can be applied to various communication systems, for example: Global System of Mobile communication ("GSM") system, Code Division Multiple Access (referred to as "Code Division Multiple Access") CDMA") system, wideband code division multiple access (Wandaband Code Division Multiple Access, abbreviated as "WCDMA") system, General Packet Radio Service ("GPRS"), Long Term Evolution (LTE) system, LTE frequency division A Division of Frequency Division Duplex ("FDD") system, LTE Time Division Duplex ("TDD"), and Universal Mobile Telecommunication System (UMTS).

 It should be understood that, in the embodiment of the present invention, the user equipment (User Equipment, referred to as "UE") may be referred to as a terminal (Mobile), a mobile station (Mobile Station, referred to as "MS"), and a mobile terminal (Mobile Terminal). And so on, the user equipment can communicate with one or more core networks via a Radio Access Network ("RAN"), for example, the user equipment can be a mobile phone (or "cellular" phone) Computers with mobile terminals, etc., for example, the user devices can also be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange voice and/or data with the wireless access network.

 In the embodiment of the present invention, the base station may be a base station (Base Transceiver Station, referred to as "BTS") in GSM or CDMA, or may be a base station (NodeB, referred to as "NB") in WCDMA, or may be in LTE. The present invention is not limited to an evolved base station (Evolutional Node B, simply referred to as 'ΈΝΒ or e-NodeB'). However, for convenience of description, the following embodiments will be described by taking the base station ENB and the user equipment UE as an example.

 It should be further understood that, in the embodiment of the present invention, the control channel may include other physical layer control channels such as a PDCCH and a Physical Uplink Control Channel (PUCCH), but for convenience of description, the embodiment of the present invention only The PDCCH is taken as an example for description, but the embodiment of the present invention is not limited thereto.

 It should be understood that within a TTI, the available control domain resources are aggregated according to a tree structure to form available PDCCH control channels of different formats. As shown in Figure 1, when the CCE aggregation level is AL = 1, each CCE forms a PDCCH channel of format 0; when the CCE aggregation level is AL = 2, two consecutive CCEs form a PDCCH channel of format 1: when CCE is aggregated When the level AL is 4, four consecutive CCEs form a PDCCH channel of format 2; when the CCE aggregation level is AL=8, eight consecutive CCEs are aggregated into one format 3 PDCCH channel. That is, the relationship between the format of the PDCCH channel and the CCE aggregation level and the number of occupied CCEs is as shown in Table 1.

Table 1 PDCCH format (Format) CCE aggregation level AL CCE number format 0 1 1

 Format 1 2 2

 Format 2 4 4

 Format 3 8 8

 All CCEs can be divided into two types of search spaces, namely a common search space and a UE-specific search space. The public search space contains CCEs labeled 0 ~ 15, which are the first 16 CCEs. The PDCCH channel in the common search space is mainly used to carry the common DCI, and all UEs need to detect the DCI in the common search space to obtain common scheduling information, such as system information. There are only two formats of PDCCH channels in the common search space, namely format 2 and format 3; and the PDCCH channels of the above four formats exist in the UE-specific search space, and are used to carry UE-specific DCI, for each PDCCH. The format, ie the aggregation level, corresponds to a UE-specific search space. The specific search spaces of different UEs may coincide. The size of the search space, that is, the number of PDCCH candidate channels, is only related to the aggregation level, as shown in Table 2.

 Table 2

 For example, in the UE-specific search space, the number of PDCCH candidate channels in the search space corresponding to AL=2 is six, and the six consecutive PDCCH candidate channels constitute a search space of AL=2.

Since each UE has a transmission mode configured by a higher layer, in the UE-specific search space, the UE separately detects two DCI sizes, one is the DCI size of the current mode of the high-level configuration, and the other is the back. The DCI size of the exit mode. In addition to the UE-specific search space, the UE also needs The common search space is detected, and the common search space also corresponds to two DCI sizes. The correspondence between the transmission mode and the DCI format to be detected can be as shown in Table 3.

 table 3

 In order to reduce the complexity of the blind detection of the control channel by the user equipment, and to reduce the complexity of the blind detection, the embodiment of the present invention provides the following technical solution: determining whether the technical solution of the detection or transmission condition is met before the blind detection, and determining the control channel The technical solution of the format, the technical solution for determining the position of the control channel, the above technical solution will be described in detail below with reference to the accompanying drawings. It should be understood that the above types of technical solutions may be used alone or in combination with each other.

 2 shows a schematic flow diagram of a method 100 of transmitting scheduling information in accordance with an embodiment of the present invention. As shown in FIG. 2, the method 100 includes:

 S110. Generate a random number corresponding to the user equipment according to a predetermined rule.

 S120, when determining that the random number is located in a pre-configured scheduling interval, performing blind detection on the control channel in the search space specific to the user equipment, to obtain scheduling information of the user equipment.

 Due to the limited resources of the control domain in each cell, the number of UEs scheduled in each cell is usually no more than 10, but there may be more than 100 UEs that allow data to be sent and received in the cell. This causes the UE to have a 90% probability that it will not be scheduled in the ,, but the UE needs to perform a blind detection attempt in each ,, and the blind detection process can be determined to be scheduled.

To this end, in the embodiment of the present invention, the user equipment UE may generate a random number corresponding to the user equipment according to a predetermined rule, and if the UE determines that the random number is located in a pre-configured scheduling interval, the UE Blind detection of the control channel within the user-specific search space; otherwise, The UE considers that there is no opportunity in the TTI to be scheduled, and does not perform blind detection on the control channel in the specific search space of the UE, thereby effectively reducing the number of times the user equipment blindly detects the control channel. The scheduling interval is a numerical interval. This interval can be set empirically by those skilled in the art. It can be understood that, generally, the larger the interval is set, the probability that the random number falls into the space increases, and the probability of the user equipment blindly detecting the control channel increases.

 Therefore, the method for transmitting scheduling information in the embodiment of the present invention determines whether the detection condition is met before detecting the control channel, and blindly detects the control channel when the detection condition is met, thereby effectively reducing the user equipment. The number of blind detections on the control channel saves user equipment power, reduces energy consumption, and further improves the user experience.

 For example, for a Machine to Machine (M2M) terminal, the M2M terminal is a terminal for implementing machine type communication, and the M2M type communication service is single, and is not sensitive to communication delay. But pay attention to the cost of the M2M terminal and the reduction of energy consumption. Therefore, the complexity of the blind detection of the control channel is very necessary for the M2M terminal, which not only can reduce the cost and power consumption of the M2M terminal, but also can promote the large-scale application of the M2M terminal, thereby promoting the development of the M2M technology.

 In the embodiment of the present invention, the scheduling interval may be indicated by system information, or the scheduling interval may be indicated by a physical layer scheduling format indication channel, or may be controlled by a media access control layer (Media Access Control Control Element, referred to as " The MAC CE") carries the scheduling interval. Therefore, optionally, as shown in FIG. 3, the method 100 further includes:

 S115. Acquire the scheduling interval by using system information, a physical layer scheduling format indicator channel, or a medium access control layer control unit.

 It should be understood that the physical layer scheduling format indication channel may be a channel obtained by extending a PCFICH channel, or may be a redefined physical layer indication channel.

 It should be understood that the size of the sequence numbers of the above processes does not imply a sequence of executions, and the order of execution of the processes should be determined by its function and internal logic, and should not be construed as limiting the implementation of the embodiments of the present invention. For example, you can first obtain the scheduling interval (as shown in S115) and then generate a random number (as shown in S110).

In S110, the predetermined rule may be determined by the following equation (1):

Wherein, as the subframe ^: corresponding to the generated random number to the user equipment, the intermediate parameter in the subframe _{generation, Y_ l = n RNTI ≠ 0} , identifying «dish for the user equipment, and /) is a prime number , and 0 ≤ 9.

 Specifically, the decimal number corresponding to the identifier of the user equipment, ^ and /) are respectively large prime numbers, for example = 39827, D = 65537. Indicates the number of sub-frames, which is a uniformly distributed pseudo-random number in a [0, 1) interval generated within the sub-frame ^:. Defining the scheduling interval as [0, , if 7^ G [0, ^), the UE needs to blindly detect a control channel in the UE-specific search space, such as a PDCCH channel; otherwise, in the current TTI, the UE is not in the UE. The control channel within a particular search space is blindly detected.

 Therefore, the method for transmitting scheduling information in the embodiment of the present invention determines whether the detection condition is met before detecting the control channel, and blindly detects the control channel when the detection condition is met, thereby effectively reducing the user equipment. The number of blind detections on the control channel saves user equipment power, reduces energy consumption, and further improves the user experience.

 Referring to FIG. 2 and FIG. 3 above, the technical solution for determining whether the detection condition is met before the blind detection is described in detail from the perspective of the user equipment. The scheme will be described in detail from the perspective of the base station in conjunction with FIG. 4 and FIG.

 As shown in FIG. 4, a method 200 for transmitting scheduling information according to an embodiment of the present invention includes:

 S210. Generate a random number corresponding to the user equipment to be scheduled according to a predetermined rule.

 S220. When it is determined that the random number is in the pre-configured scheduling interval, send the scheduling information of the to-be-scheduled user equipment to the to-be-scheduled user equipment by using the control channel in the specific search space of the to-be-scheduled user equipment.

 Before transmitting the scheduling information of the user equipment, the base station may first determine whether the transmission condition is met. That is, the base station may generate a random number corresponding to the user equipment to be scheduled according to a predetermined rule. If the base station determines that the random number is located in the pre-configured scheduling interval, the base station passes the control channel in the search space specific to the user equipment to be scheduled, The to-be-scheduled user equipment sends the scheduling information of the to-be-scheduled user equipment; otherwise, the base station does not send corresponding scheduling information to the to-be-scheduled user equipment.

In the embodiment of the present invention, optionally, as shown in FIG. 5, the method 200 further includes: S230. Send the scheduling interval to the to-be-scheduled user equipment by using system information, a physical layer scheduling format indicator channel, or a media access control layer control unit.

 It should be understood that the size of the sequence numbers of the above processes does not imply a sequence of executions, and the order of execution of the processes should be determined by its function and internal logic, and should not be construed as limiting the implementation of the embodiments of the present invention. For example, S230 may be executed first, then S210, S220 may be executed, S210 may be executed first, and S230 and S220 may be executed, and the present invention is not limited thereto.

In the embodiment of the present invention, optionally, the predetermined rule is determined by the following equation (2):

The random number corresponding to the to-be-scheduled user equipment generated in the subframe ^: is an intermediate parameter generated in the subframe ^:: - ₁ = « _W77 ≠o , "Dish for the user equipment to be scheduled Logo, ^ and

D is a prime number, and 0 ≤ A ≤ 9.

 Therefore, the method for transmitting scheduling information in the embodiment of the present invention determines whether the user equipment meets the detection condition before detecting the control channel, and blindly detects the control channel when the detection condition is met, thereby effectively The number of times the user equipment blindly detects the control channel is reduced, the power of the user equipment is saved, the energy consumption is reduced, and the user experience can be further improved.

 In the above, with reference to FIG. 2 to FIG. 5, a technical solution for determining whether the user equipment meets the detection condition before detecting the control channel is performed to reduce the number of times of blind detection of the control channel, which will be described below in conjunction with FIG. 6 to FIG. 9. Describe a technical solution for determining, by the user equipment, a channel format used by the control channel before detecting the control channel, so as to reduce the number of times of blind detection of the control channel.

 FIG. 6 shows a schematic flow diagram of a method 300 of transmitting scheduling information in accordance with another embodiment of the present invention. As shown in FIG. 6, the method 300 includes:

 S310. Receive radio resource control (Radio Resource Control, referred to as "RRC") signaling sent by the base station, where the RRC signaling includes a first format set used by the control channel.

 S320. Receive format indication information sent by the base station by using a physical layer scheduling format indication channel, where the format indication information indicates a second format set used by the control channel in a current transmission time interval.

S330: Perform blind detection on a control channel in a search space specific to the user equipment according to the matched control channel format in the first format set and the second format set, to obtain scheduling information of the user equipment. Optionally, the matched control channel format is the first format set and the second format set The same control channel format.

 That is, after acquiring the format of the control channel that the UE defined by the upper layer is to be detected, and acquiring the format of the control channel used in the current TTI, the user equipment uses a matching control channel format in the two types of formats to perform a specific search on the user equipment. The control channel in the space performs blind detection to obtain scheduling information of the user equipment, so that the number of blind detections can be significantly reduced.

 Therefore, the method for transmitting scheduling information in the embodiment of the present invention determines the channel format used by the control channel before detecting the control channel, and performs blind detection on the control channel by using the control channel format, thereby effectively The number of times the user equipment blindly detects the control channel is reduced, the power of the user equipment is saved, the energy consumption is reduced, and the user experience can be further improved.

 In S310, the UE obtains the format, that is, the aggregation level, of the control channel that needs to be detected in the UE-specific search space, which is configured in the dedicated RRC signaling of the UE, by receiving the RRC signaling sent by the base station. For example, if the upper layer configuration UE needs to detect the PDCCH channel of AL={2, 4}, the UE does not need to detect the PDCCH channels of AL=1 and 8 in the UE-specific search space. However, it should be understood that in order to ensure that the UE can receive a page or system message of AL = 4 or 8, the UE still needs to detect the PDCCH channel of AL = 4 or 8 in the common search space.

 In S320, the physical layer scheduling format indication channel indicates a format specifically used by the PDCCH in the current TTI. Specifically, the CCE aggregation level AL that may be used in the TTI may be compiled into an index value (Index), and the physical layer scheduling format indication channel indicates the index value, as shown in Table 4. Similarly, the physical layer scheduling format indication channel may be an extended PCFICH channel or a redefined physical layer indicator channel.

 Table 4

 Index value (Index) CCE aggregation level AL

 0 1

 1 2

 twenty four

 3 8

 4 1 , 2

 5 2, 4

 6 1 , 4

7 4, 8 8 2, 8

 9 1 , 8

 For example, when the index value Index=8, it indicates that the PDCCH in the TTI has only two types of AL, that is, PDCCH channels of two formats: AL=2 and AL=8.

 In S330, the user equipment needs to match the first format set with the control channel format in the second format set, and use the matched control channel format to perform blind detection on the control channel in the search space specific to the user equipment. .

 For example, the high-layer configuration UE needs to detect the PDCCH channel of AL={2, 4}, and the physical layer scheduling format indication channel indicates that the CCE aggregation level AL used by the PDCCH channel is 2 and 8 in the TTI, then the UE only needs to detect the AL. The PDCCH channel of 2 can be used.

 In the embodiment of the present invention, before the blind detection, the UE may first determine whether the detection condition is met, and determine the format of the control channel when determining that the UE meets the detection condition, that is, when the UE has a chance to be scheduled in the current TTI.

 Therefore, as shown in FIG. 7, the method 300 may further include:

 S321. Generate a random number corresponding to the user equipment according to a predetermined rule.

 The blind detection of the control channel in the search space specific to the user equipment includes: performing blind detection on the control channel in the search space specific to the user equipment when the random number is determined to be in the pre-configured scheduling interval.

 Similarly, in the embodiment of the present invention, the scheduling interval may be indicated by the system information, or the scheduling interval may be indicated by the physical layer scheduling format indication channel, and the scheduling interval may be carried by the media access control layer control unit. Therefore, as shown in FIG. 7, the method 300 further includes: S322. Obtain the scheduling interval by using system information, the physical layer scheduling format indicator channel, or the medium access control layer control unit.

 It should be understood that the size of the sequence numbers of the above processes does not imply a sequence of executions, and the order of execution of the processes should be determined by its function and internal logic, and should not be construed as limiting the implementation of the embodiments of the present invention.

For example, in the embodiment of the present invention, if the generated random number is within the scheduling interval before the blind detection of the control channel, the embodiment of the present invention does not limit the sequential relationship between S310, S320, S321, and S322. . For example, after performing S321 and S322, it is determined whether to execute S310 or S320, and these steps may be performed at the same time, and the embodiment of the present invention is not limited thereto. The scheme in which the user equipment blindly detects the control channel in the search space specific to the user equipment is described above, and the scheme in which the user equipment performs blind detection on the control channel in the common search space will be described below.

 In the embodiment of the present invention, as shown in FIG. 7, the method 300 may further include:

 S340, determining whether to detect common downlink control information DCI in the current transmission time interval;

 S350. When determining to detect the common DCI, perform blind detection on the control channel in the common search space to obtain the common DCI.

 In S340, optionally, the public DCI indication information sent by the physical layer scheduling format indication channel, or at least one of the format 2 and the format 3 including the control channel according to the second format set, or according to the RRC information The included public DCI detection information is used to determine whether the public DCI is detected within the current transmission time interval.

 Specifically, whether the user equipment detects the common search space to obtain the common DCI may be explicitly indicated by the physical layer scheduling format indication channel, that is, according to the public DCI indication information sent by the physical layer scheduling format indication channel, where The DCI indication information is used to indicate whether there is a public DCI in the current UI. For example, one bit is used to indicate whether there is a common DCI in the TTI. If the bit is "1", it means that there is a common DCI in the TTI, so the UE can determine that the public DCI needs to be detected, and all The UE needs to detect the DCI in the common search space; if the bit is "0", it means that there is no public DCI in the TTI, so the UE does not need to detect the public DCI in the TTI.

 In the embodiment of the present invention, considering that the AL level used by the control channel in the TTI is related to the resource of the control domain part in the TTI, if the scheduling interval is also indicated by the physical layer scheduling format indication channel, the number of CCEs may be The possible AL and the scheduling interval are compiled into a multi-dimensional joint index, as shown in Table 5.

It should be understood that the physical layer scheduling format indication channel can be used in two ways: First, for existing The PCFICH channel is extended such that the PCFICH channel indicates not only the number of CCEs, but also the AL level used by the PDCCH and the scheduling interval, that is, the multi-dimensional joint index as shown in Table 5. Second, a physical layer indicator channel is redefined. The resource mapping manner of the indicator channel is the same as the resource mapping manner of the PCFICH channel. The indicator channel carries the AL level used by the PDCCH and the scheduling interval index.

 Whether the current DCI is included in the current TTI may also be implicitly indicated by the physical layer scheduling format indication channel. If the format indication information sent by the physical layer scheduling format indication channel indicates that the second format set used in the current TTI includes AL=4 and/or AL=8, it indicates that the TTI may include a common DCI, so the UE It may be determined that the public DCI needs to be detected; conversely, if the second format set does not include any of AL=4 and AL=8, it means that there is certainly no public DCI in the TTI, and therefore there is no need for public The control channel in the search space is detected.

 In addition, the public DCI detection information included in the RRC dedicated signaling may also be used to indicate whether a common DCI needs to be detected in the current TTI. For example, if the RRC dedicated signaling indicates that the UE does not need to detect the public DCI, the UE may not detect the common DCI even if the physical layer scheduling format indication channel explicitly or implicitly indicates that the common DCI is transmitted in the ΤΉ.

 Therefore, the method for transmitting scheduling information in the embodiment of the present invention determines the channel format used by the control channel before detecting the control channel, and performs blind detection on the control channel by using the control channel format, thereby effectively The number of times the user equipment blindly detects the control channel is reduced, the power of the user equipment is saved, the energy consumption is reduced, and the user experience can be further improved.

 With reference to FIG. 6 and FIG. 7 above, the technical solution for determining the channel format used by the control channel before the blind detection is described in detail from the perspective of the user equipment. The scheme will be implemented from the perspective of the base station in conjunction with FIG. 8 and FIG. A detailed description.

 As shown in FIG. 8, a method 400 for transmitting scheduling information according to an embodiment of the present invention includes:

 S410. Send, to the user equipment, radio resource control RRC signaling, where the RRC signaling includes a first format set used by the control channel.

 S420, the format indication information is sent to the user equipment by using a physical layer scheduling format indication channel, where the format indication information indicates a second format set used by the control channel in a current transmission time interval.

S430. Send scheduling information to the user equipment by using a control channel in a specific search space of the user equipment, where the control channel in the specific search space of the user equipment matches the first format set and the second format set. Control channel format. Optionally, the matched control channel format is The first format set and the same control channel format in the second format set.

 Therefore, the method for transmitting scheduling information in the embodiment of the present invention determines the channel format used by the control channel before the user equipment detects the control channel, and causes the user equipment to blindly detect the control channel by using the control channel format. Therefore, the number of times the user equipment blindly detects the control channel can be effectively reduced, the power of the user equipment is saved, the energy consumption is reduced, and the user experience can be further improved.

 In the embodiment of the present invention, optionally, as shown in FIG. 9, the method 400 further includes:

 S425. Generate a random number corresponding to the user equipment according to a predetermined rule.

 At this time, the S430 specifically includes: when determining that the random number is located in the pre-configured scheduling interval, sending the scheduling information to the user equipment by using a control channel in the search space specific to the user equipment.

 That is, the base station may first determine whether the transmission condition is met before transmitting the scheduling information of the user equipment. If it is determined that the user equipment meets the transmission condition, the scheduling is sent to the user equipment according to the control channel format in the search space of the user equipment according to the control channel format in the first format set and the second format set. information. Thereby, the number of times the user equipment blindly detects the control channel can be further reduced.

 In the embodiment of the present invention, optionally, as shown in FIG. 9, the method 400 further includes:

 S440: Send the scheduling interval to the to-be-scheduled user equipment by using system information, a physical layer scheduling format indicator channel, or a medium access control layer control unit.

 In the embodiment of the present invention, optionally, as shown in FIG. 9, the method 400 further includes:

 S450, the common DCI indication information is sent to the user equipment by using the physical layer scheduling format indication channel, or the second format set sent to the user equipment includes at least one of format 2 and format 3 of the control channel, or The RRC signaling including the public DCI detection information is sent to the user equipment, and the user equipment is notified whether the public DCI is detected within the current transmission time interval.

 It should be understood that the size of the sequence numbers of the above processes does not imply a sequence of executions, and the order of execution of the processes should be determined by its function and internal logic, and should not be construed as limiting the implementation of the embodiments of the present invention.

The method for transmitting scheduling information in the embodiment of the present invention determines the channel format used by the control channel before the user equipment detects the control channel, and causes the user equipment to blindly detect the control channel by using the control channel format. This can effectively reduce the number of blind detections of the control channel by the user equipment, save power of the user equipment, reduce energy consumption, and further improve the user experience. A technical solution for determining the location of the control channel by the user equipment before detecting the control channel is described below with reference to FIG. 10 and FIG. 11 to reduce the number of times the user equipment performs blind detection on the control channel.

 FIG. 10 shows a schematic flow diagram of a method 500 of transmitting scheduling information in accordance with an embodiment of the present invention. As shown in FIG. 10, the method 500 includes:

 S510. Determine a first control channel unit CCE aggregation level set used by the control channel in the current transmission time interval, and quantity information and location information of the control channel corresponding to each CCE aggregation level in the first CCE aggregation level set.

 S520. Determine, according to the CCE aggregation level that matches the first CCE aggregation level set and the third CCE aggregation level set indicated by the high layer signaling, the second CCE aggregation level set used by the control channel that carries the scheduling information of the user equipment. ;

 S530: Perform blind detection on the control channel in the search space specific to the user equipment according to the quantity information, the location information, and the second CCE aggregation level set, to obtain the scheduling information of the user equipment.

 In S510, the user equipment may determine the first CCE aggregation level set, the quantity information, and the location information by using a physical layer scheduling format indication format indication information and a preset rule, where the format indication information indicates a current transmission time. The first CCE aggregation level set used by the control channel in the interval, the location indication information includes the first CCE aggregation level set, the quantity information, and the location information. That is, the channel implicit indication is indicated by the physical layer scheduling format.

 For example, the user equipment determines, according to the format indication information, the control channel format used by the control channel in the current TTI, that is, the first CCE aggregation level set, for example, the index value of the format indication information received by the physical layer scheduling format indication channel Index=7, That is, the PDCCH in the TTI has only two types of AL, that is, PDCCH channels of two formats: AL=4 and AL=8.

The preset rule may be, for example, sorting the CCE aggregation levels in the first CCE aggregation level set in a certain order, such as from the largest to the smallest, and mapping according to the maximum available value. Specifically, for example, if the number of CCEs is determined to be n according to the format indication information, and AL=4 and 8 corresponding to the PDCCH in the TTI are detected, the number N1 of PDCCHs of AL=8 and the number of PDCCHs of N=4 of N=4 are respectively It is determined by the following equations (3) and (4).

 The user equipment may also determine the first CCE aggregation level set, the quantity information, and the location information by using the physical layer scheduling format indication location indication information received by the channel, that is, the physical layer scheduling format indicates the channel explicit indication. For example, the number of PDCCHs corresponding to the AL is also indicated by the physical layer scheduling channel; the number of PDCCHs such as AL=4 is, and the number of PDCCHs with AL=8 is q, and are sorted in a certain order, such as from large to small. .

 In S520, the user equipment determines the CCE aggregation level that matches the first CCE aggregation level set and the third CCE aggregation level set indicated by the high layer signaling, and determines that the control channel that carries the scheduling information of the user equipment is used. Two CCE aggregation level sets. Optionally, the matched CCE aggregation level is the same CCE aggregation level in the first CCE aggregation level set and the third CCE aggregation level set.

 Optionally, when the control channel corresponding to any one of the second CCE aggregation level sets includes at least two control channels, the method 500 further includes: in each of the second CCE aggregation level sets When the control channel corresponding to the CCE aggregation level includes at least two control channels, the control channel carrying the scheduling information of the user equipment is determined on the at least two control channels by performing a modulo operation on the first value corresponding to the user equipment. The location in .

 For example, the user equipment determines that the second CCE aggregation level set includes AL=4 and AL=8, and the number of PDCCHs of AL=4 is 2, and then the cell radio network temporary identifier (Cell Radio Network Temporary Identifier) may be adopted. The relative value of the decimal value of "C-RNTI" or the random number generated by the C-RNTI is determined by the C-RNTI mod 2 to determine the UE-specific PDCCH channel position.

 In S530, the user equipment sends the scheduling information to the first user equipment according to the quantity information, the location information, and the second CCE aggregation level set by using a control channel in the search space specified by the first user equipment.

It should be understood that when it is determined that the UE needs to detect the common DCI, the number of CCEs that the UE uses to transmit the common DCI by default is 16, and the possible control channel positions of the common DCI are the first two AL=8 control channel positions and the first four ALs. =4 control channel position. When AL=4 and both occur in one TTI When AL=8, if the UE has detected that a PDCCH transmitted by AL=8 is a common DCI in the first two control channel positions of AL=8, it only needs to detect the first two AL=4 PDCCHs to judge. Whether there is still a public DCI; if the UE has detected that two PDCCHs transmitted by AL=8 transmit a common DCI at the first two AL=8 control channel positions, the UE does not need the control channel position at AL=4. Detect public DCI on it.

 For example, the system uses an implicit indication to indicate whether it is necessary to detect the common search space, that is, whether the AL indicated by the physical layer scheduling format indication channel includes AL=4 and/or AL=8 to implicitly obtain whether the TTI includes public DCI. When the detection is required, all UEs will detect the first two AL=8 PDCCHs by default. For the UE-specific AL=8 PDCCH channel, the UE may use the C-RNTI (or the random number generated by the C-RNTI). The modulo calculation is performed to determine; if there are 5 PDCCH channels with AL=8, the C-RNTI mod 5 determines the UE-specific PDCCH channel position. If the result is 0/1, it indicates that the PDCCH of the common DCI coincides, which is determined by the eNB. Is used to schedule the UE, or to send a public DCI.

 It should be understood that the size of the sequence numbers of the above processes does not imply a sequence of executions, and the order of execution of the processes should be determined by its function and internal logic, and should not be construed as limiting the implementation of the embodiments of the present invention.

 Therefore, the method for transmitting scheduling information in the embodiment of the present invention determines the location of the control channel before detecting the control channel, and performs blind detection on the control channel in the search space specific to the user equipment according to the location of the control channel. This can effectively reduce the number of blind detections of the control channel by the user equipment, save power of the user equipment, reduce energy consumption, and further improve the user experience.

 Figure 11 shows a schematic flow diagram of a method 600 of transmitting scheduling information in accordance with an embodiment of the present invention. As shown in FIG. 11, the method 600 includes:

 S610. The base station determines a first control channel unit CCE aggregation level set used by the control channel in the current transmission time interval, and quantity information and location information of the control channel corresponding to each CCE aggregation level in the first CCE aggregation level set. ;

 S620: The base station determines, according to the CCE aggregation level that matches the first CCE aggregation level set and the third CCE aggregation level set that is sent to the first user equipment by using the high layer signaling, to control the scheduling information that carries the first user equipment. a second set of CCE aggregation levels for channel adoption;

S630, the base station sends, according to the quantity information, the location information, and the second CCE aggregation level set, to the first user equipment by using a control channel in a search space specific to the first user equipment. Scheduling information.

 Optionally, the matched CCE aggregation level is the same CCE aggregation level in the first CCE aggregation level set and the third CCE aggregation level set.

 Optionally, the method 600 further includes: when the control channel corresponding to any one of the second CCE aggregation level sets includes at least two control channels, by using the first corresponding to the first user equipment The value is subjected to a modulo operation to determine a location of a control channel carrying scheduling information of the first user equipment in the at least two control channels.

 In the embodiment of the present invention, optionally, the S610 includes: receiving, by using a physical layer scheduling format, format indication information and a preset rule sent by the channel to the first user equipment, or using a physical layer scheduling format indication channel to the first user. The location indication information sent by the device, the first CCE aggregation level set, the quantity information, and the location information, where the format indication information indicates the first CCE aggregation level set used by the control channel in the current transmission time interval, where the location The indication information includes the first CCE aggregation level set, the quantity information, and the location information.

 Therefore, the method for transmitting scheduling information in the embodiment of the present invention determines the location of the control channel before the user equipment detects the control channel, and causes the user equipment to control the user equipment in a specific search space according to the location of the control channel. The channel is blindly detected, thereby effectively reducing the number of blind detections of the control channel by the user equipment, saving the power of the user equipment, reducing energy consumption, and further improving the user experience.

 The method for transmitting scheduling information according to an embodiment of the present invention is described in detail above with reference to FIG. 2 to FIG. 11, and the user equipment and the base station according to the embodiment of the present invention will be described in detail below with reference to FIG. 12 to FIG. It should be understood that the above-mentioned and other operations and/or functions of the user equipment and the respective modules of the base station in the embodiments of the present invention are respectively used to implement the corresponding process of the method for transmitting scheduling information according to the embodiment of the present invention. Narration.

 FIG. 12 shows a schematic block diagram of a user equipment 1000 in accordance with an embodiment of the present invention. As shown in FIG. 12, the user equipment 1000 includes:

 The generating module 1100 is configured to generate a random number corresponding to the user equipment according to a predetermined rule. The detecting module 1200 is configured to: when determining that the random number generated by the generating module 1100 is located in a pre-configured scheduling interval, the user equipment is specific to the user equipment. The control channel in the search space performs blind detection to obtain scheduling information of the user equipment.

Therefore, the user equipment in the embodiment of the present invention determines by detecting the control channel. Whether the detection condition is met, and the control channel is blindly detected when the detection condition is met, thereby effectively reducing the number of times the user equipment blindly detects the control channel, saving the user equipment power, reducing energy consumption, and further improving the user. Experience.

In the embodiment of the present invention, optionally, the predetermined rule used by the generating module 1100 is determined by the following equation:

Wherein, as the subframe ^: corresponding to the generated random number to the user equipment, the intermediate parameter in the subframe _{generation, Y_ l = n RNTI ≠ 0} , identifying «dish for the user equipment, and /) is a prime number , and 0 ≤ 9.

 In the embodiment of the present invention, as shown in FIG. 13 , the user equipment 1000 further includes: an obtaining module 1300, configured to acquire, by using system information, a physical layer scheduling format indication channel, or a media access control layer control unit. Scheduling interval.

 The user equipment 1000 according to the embodiment of the present invention may correspond to the user equipment in the method for transmitting scheduling information according to the embodiment of the present invention, and the foregoing and other operations and/or functions of the respective modules in the user equipment 1000 are respectively implemented in order to implement FIG. 2 to The corresponding processes of the respective methods 100 to 200 in FIG. 5 are not described herein for the sake of brevity.

 Therefore, the user equipment in the embodiment of the present invention determines whether the control condition is met before detecting the control channel, and performs blind detection on the control channel when the detection condition is met, thereby effectively reducing the user equipment to the control channel. The number of blind detections saves user equipment power, reduces energy consumption, and further improves the user experience.

 FIG. 14 shows a schematic block diagram of a base station 2000 in accordance with an embodiment of the present invention. As shown in FIG. 14, the base station 2000 includes:

 The generating module 2100 is configured to generate a random number corresponding to the user equipment to be scheduled according to a predetermined rule. The first sending module 2200 is configured to: when determining that the random number generated by the generating module 2100 is located in a pre-configured scheduling interval, The control channel in the search space of the user equipment to be scheduled is sent, and the scheduling information of the user equipment to be scheduled is sent to the user equipment to be scheduled.

Optionally, the predetermined rule used by the generating module 2100 is determined by the following equation:

The random number corresponding to the to-be-scheduled user equipment generated in the subframe ^: is an intermediate parameter generated in the subframe ^, : - ₁ = « _W77 ≠o , " _{Dish is} the identifier of the user equipment to be scheduled , ^ and

D is a prime number, and 0 ≤ A ≤ 9.

 Optionally, as shown in FIG. 15, the base station 2000 further includes:

 The second sending module 2300 is configured to send the scheduling interval to the to-be-scheduled user equipment by using system information, a physical layer scheduling format indicator channel, or a media access control layer control unit.

 The base station 2000 according to the embodiment of the present invention may correspond to the base station in the method for transmitting scheduling information according to the embodiment of the present invention, and the foregoing and other operations and/or functions of the respective modules in the base station 2000 are respectively implemented in FIG. 2 to FIG. The corresponding processes of the respective methods 100 to 200 are not described herein for the sake of brevity.

 Therefore, the base station in the embodiment of the present invention determines whether the user equipment meets the detection condition before detecting the control channel, and performs blind detection on the control channel when the detection condition is met, thereby effectively reducing the user equipment pair. The number of times the control channel performs blind detection saves user equipment power, reduces energy consumption, and further improves the user experience.

 Figure 16 shows a schematic block diagram of a user equipment 3000 in accordance with an embodiment of the present invention. As shown in Figure 16, the user equipment 3000 includes:

 The first receiving module 3100 is configured to receive radio resource control RRC signaling sent by the base station, where the RRC signaling includes a first format set used by the control channel;

 The second receiving module 3200 is configured to receive format indication information that is sent by the base station by using a physical layer scheduling format indication channel, where the format indication information indicates a second format set used by the control channel in the current transmission time interval;

 The detecting module 3300 is configured to perform blind detection on a control channel in a search space specific to the user equipment according to the matched control channel format in the first format set and the second format set, to obtain scheduling information of the user equipment.

Therefore, the user equipment in the embodiment of the present invention determines the channel format used by the control channel before detecting the control channel, and uses the control channel format to blindly detect the control channel, thereby effectively reducing the user equipment. The number of times the control channel is blindly detected, saving user equipment power Quantity, reduce energy consumption, and further improve the user experience.

 In the embodiment of the present invention, optionally, as shown in FIG. 17, the user equipment 3000 further includes: a generating module 3400, configured to generate a random number corresponding to the user equipment according to a predetermined rule, where the detecting module 3300 is further configured to: When it is determined that the random number is located in the pre-configured scheduling interval, the control channel in the search space specific to the user equipment is blindly detected.

 Optionally, as shown in FIG. 17, the user equipment 3000 further includes:

 The first obtaining module 3500 is configured to acquire the scheduling interval by using system information, the physical layer scheduling format indicator channel, or the medium access control layer control unit.

 Optionally, as shown in FIG. 17, the user equipment 3000 further includes:

 a determining module 3600, configured to determine whether a common downlink control information DCI is detected within a current transmission time interval;

 The second obtaining module 3700 is configured to perform blind detection on the control channel in the common search space when determining to detect the common DCI, to obtain the common DCI.

 Optionally, the determining module 3600 is further configured to:

 The public DCI indication information sent by the physical layer scheduling format indication channel, or according to at least one of the format 2 and the format 3 of the control channel according to the second format set, or according to the common DCI detection information included in the RRC signaling, Determine if the public DCI is detected within the current transmission time interval.

 The user equipment 3000 according to the embodiment of the present invention may correspond to the user equipment in the method for transmitting scheduling information according to the embodiment of the present invention, and the foregoing and other operations and/or functions of the respective modules in the user equipment 3000 are respectively implemented to implement FIG. 6 to The corresponding processes of the respective methods 300 to 400 in FIG. 9 are not described herein again for the sake of brevity.

 Therefore, the user equipment in the embodiment of the present invention determines the channel format used by the control channel before detecting the control channel, and uses the control channel format to blindly detect the control channel, thereby effectively reducing the user equipment. The number of blind detections on the control channel saves user equipment power, reduces energy consumption, and further improves the user experience.

 FIG. 18 shows a schematic block diagram of a base station 4000 in accordance with an embodiment of the present invention. As shown in FIG. 18, the base station 4000 includes:

The first sending module 4100 is configured to send, to the user equipment, radio resource control RRC signaling, where the RRC signaling includes a first format set used by the control channel; The second sending module 4200 is configured to send format indication information to the user equipment by using a physical layer scheduling format indication channel, where the format indication information indicates a second format set that is used by the control channel in a current transmission time interval;

 The third sending module 4300 is configured to send scheduling information to the user equipment by using a control channel in the search space specified by the user equipment, where the control channel in the specific search space of the user equipment uses the first format set and the first The matching control channel format in the two format set.

 In the embodiment of the present invention, optionally, as shown in FIG. 19, the base station 4000 further includes: a generating module 4400, configured to generate a random number corresponding to the user equipment according to a predetermined rule, where the third sending module 4300 further uses When it is determined that the random number is located in the pre-configured scheduling interval, the scheduling information is sent to the user equipment by using a control channel in the search space specific to the user equipment.

 Optionally, as shown in FIG. 19, the base station 4000 further includes:

 The fourth sending module 4500 is configured to send the scheduling interval to the user equipment by using system information, the physical layer scheduling format indicator channel, or the medium access control layer control unit.

 Optionally, as shown in FIG. 19, the base station 4000 further includes:

 The notification module 4600 is configured to send the public DCI indication information to the user equipment by using the physical layer scheduling format indication channel, or include at least one of the format 2 and the format 3 of the control channel by using the second format set sent to the user equipment Or, by sending the RRC signaling including the public DCI detection information to the user equipment, notify the user equipment whether to detect a public DCI within a current transmission time interval.

 The base station 4000 according to an embodiment of the present invention may correspond to a base station in a method of transmitting scheduling information according to an embodiment of the present invention, and the above and other operations and/or functions of respective modules in the base station 4000 are respectively implemented in FIG. 6 to FIG. The corresponding processes of the respective methods 300 to 400 are not described herein for the sake of brevity.

 Therefore, the base station in the embodiment of the present invention determines the channel format used by the control channel before the user equipment detects the control channel, and causes the user equipment to perform blind detection on the control channel by using the control channel format. The number of times the user equipment blindly detects the control channel is effectively reduced, the power of the user equipment is saved, the energy consumption is reduced, and the user experience can be further improved.

FIG. 20 shows a schematic block diagram of a user equipment 5000 in accordance with an embodiment of the present invention. As shown in FIG. 20, the user equipment 5000 may include: The first determining module 5100 is configured to determine a first control channel unit CCE aggregation level set used by the control channel in the current transmission time interval, and a control channel corresponding to each CCE aggregation level in the first CCE aggregation level set. Quantity information and location information;

 The second determining module 5200 is configured to determine, by using the CCE aggregation level that matches the first CCE aggregation level set and the third CCE aggregation level set indicated by the high layer signaling, as a control channel for carrying the scheduling information of the user equipment. a second set of CCE aggregation levels;

 The detecting module 5300 is configured to perform blind detection on the control channel in the search space specific to the user equipment according to the quantity information, the location information, and the second CCE aggregation level set, to obtain the scheduling information of the user equipment.

 Optionally, the matched CCE aggregation level is the same CCE aggregation level in the first CCE aggregation level set and the third CCE aggregation level set.

 Optionally, as shown in FIG. 21, the user equipment 5000 further includes:

 a third determining module 5400, configured to perform modulo on a first value corresponding to the user equipment when the control channel corresponding to each CCE aggregation level in the second CCE aggregation level set includes at least two control channels Computing, determining a location of a control channel carrying scheduling information of the user equipment in the at least two control channels.

 In the embodiment of the present invention, the first determining module 5100 is further configured to:

 Determining the first CCE aggregation level set, the quantity information, and the location information by using the physical layer scheduling format indication format indication information and the preset rule received by the channel, or the location indication information received by the physical layer scheduling format indication channel, where The format indication information indicates the first CCE aggregation level set used by the control channel in the current transmission time interval, and the location indication information includes the first CCE aggregation level set, the quantity information, and the location information.

 The user equipment 5000 according to the embodiment of the present invention may correspond to the user equipment in the method for transmitting scheduling information according to the embodiment of the present invention, and the foregoing and other operations and/or functions of the respective modules in the user equipment 5000 are respectively implemented to implement FIG. 10 to The corresponding processes of the respective methods 500 to 600 in FIG. 11 are not described herein again for the sake of brevity.

Therefore, the user equipment in the embodiment of the present invention can determine the location of the control channel before detecting the control channel, and perform blind detection on the control channel in the search space specific to the user equipment according to the location of the control channel, thereby being effective. The number of times the user equipment blindly detects the control channel is reduced, the power of the user equipment is saved, the energy consumption is reduced, and the user experience can be further improved. FIG. 22 shows a schematic block diagram of a base station 6000 according to an embodiment of the present invention. As shown in FIG. 22, the base station 6000 can include:

 The first determining module 6100 is configured to determine a first control channel unit CCE aggregation level set used by the control channel in the current transmission time interval, and a control channel corresponding to each CCE aggregation level in the first CCE aggregation level set. Quantity information and location information;

 The second determining module 6200 is configured to determine, according to the CCE aggregation level that matches the first CCE aggregation level set and the third CCE aggregation level set that is sent to the first user equipment by using the high layer signaling, to determine that the first user equipment is carried. a second set of CCE aggregation levels used by the control channel of the scheduling information;

 The sending module 6300 is configured to send the scheduling information to the first user equipment by using a control channel in the search space specified by the first user equipment according to the quantity information, the location information, and the second CCE aggregation level set.

 In the embodiment of the present invention, as shown in FIG. 23, the base station 6000 further includes: a third determining module 6400, configured to control, according to each CCE aggregation level in the second CCE aggregation level set When the channel includes at least two control channels, determining, by performing a modulo operation on the first value corresponding to the first user equipment, determining a location of the control channel carrying the scheduling information of the first user equipment in the at least two control channels .

 In the embodiment of the present invention, the first determining module 6100 is further configured to: use the physical layer scheduling format to indicate the format indication information and the preset rule sent by the channel to the first user equipment, or use the physical layer scheduling format. And indicating, by the location indication information sent by the channel to the first user equipment, the first CCE aggregation level set, the quantity information, and the location information, where the format indication information indicates the first of the control channel usage in the current transmission time interval. The CCE aggregation level set, the location indication information includes the first CCE aggregation level set, the quantity information, and the location information.

 Optionally, the matched CCE aggregation level is the same CCE aggregation level in the first CCE aggregation level set and the third CCE aggregation level set.

 The base station 6000 according to the embodiment of the present invention may correspond to the base station in the method for transmitting scheduling information according to the embodiment of the present invention, and the foregoing and other operations and/or functions of the respective modules in the base station 6000 are respectively implemented in FIG. 10 to FIG. The corresponding processes of the respective methods 500 to 600 are not described herein for the sake of brevity.

Therefore, the base station in the embodiment of the present invention enables the user equipment to detect the control channel. Before, the location of the control channel is determined, and the user equipment performs blind detection on the control channel in the search space of the user equipment according to the location of the control channel, thereby effectively reducing the number of blind detections of the control channel by the user equipment, saving User device power, reduce energy consumption, and further enhance the user experience.

 It should be understood that, in order to reduce the number of blind detections of the control channel by the user equipment, and to reduce the complexity of the blind detection, the foregoing technical solutions provided by the embodiments of the present invention may be used alone or in combination with each other. For example, the technical solution for determining whether the detection or transmission condition is met is combined with the technical solution for determining the format of the control channel, and the technical solution for determining whether the detection or transmission condition is met is combined with the technical solution for determining the position of the control channel, or The foregoing three solutions are combined to reduce the number of blind detections of the control channel by the user equipment, save power of the user equipment, reduce energy consumption, and further improve the user experience.

 Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, for clarity of hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

 A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection. The components displayed by the unit may or may not be physical units, ie may be located in one place, or It can also be distributed to multiple network elements. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.

 In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

 The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

 The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any equivalent person can be easily conceived within the technical scope of the present invention. Modifications or substitutions are intended to be included within the scope of the invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

 A method for transmitting scheduling information, comprising:

 Generating a random number corresponding to the user equipment according to a predetermined rule;

 When it is determined that the random number is located in a pre-configured scheduling interval, the control channel in the search space specified by the user equipment is blindly detected to obtain scheduling information of the user equipment.

 2. The method of claim 1 wherein the predetermined rule is determined by the following equation:

Y _k ={AY _k _ _x ) odD

Wherein ^ is the sub-frame: generating a random number corresponding to the user equipment, an intermediate parameter in the subframe _{generation, Y_ l = n RNn ≠ 0} , « dish to the identification of the user equipment, and /) It is a prime number, and 0 ≤ 9.

 The method according to claim 1 or 2, wherein the method further comprises: acquiring the scheduling interval by using system information, a physical layer scheduling format indication channel, or a medium access control layer control unit.

 A method for transmitting scheduling information, comprising:

 Generating a random number corresponding to the user equipment to be scheduled according to a predetermined rule;

 When it is determined that the random number is located in a pre-configured scheduling interval, the scheduling information of the to-be-scheduled user equipment is sent to the to-be-scheduled user equipment by using a control channel in the search space of the user equipment to be scheduled.

 5. The method according to claim 4, wherein the predetermined rule is determined by the following equation:

Y _k ={AY _k _ _x ) odD

Wherein, in the sub-frame is ^: scheduled to be generated by the random number corresponding to the user equipment for the subframe ^: scheduling the user equipment generates the intermediate _{parameter, Y_ l = n RNTI ≠ 0} , « the dish is to be The identification, ^ and D are prime numbers, and 0 ≤ A ≤ 9.

The method according to claim 4 or 5, wherein the method further comprises: And sending, by the system information, the physical layer scheduling format indicator channel, or the medium access control layer control unit, the scheduling interval to the to-be-scheduled user equipment.

 A method for transmitting scheduling information, comprising:

 Receiving radio resource control RRC signaling sent by the base station, where the RRC signaling includes a first format set used by the control channel;

 Receiving, by the base station, format indication information sent by the physical layer scheduling format indication channel, where the format indication information indicates a second format set used by the control channel in the current transmission time interval;

 And performing blind detection on the control channel in the search space of the user equipment according to the matched control channel format in the first format set and the second format set, to obtain the scheduling information of the user equipment.

 The method according to claim 7, wherein the method further comprises: generating a random number corresponding to the user equipment according to a predetermined rule,

 The performing blind detection on the control channel in the search space specific to the user equipment includes: performing blind detection on the control channel in the search space specific to the user equipment when determining that the random number is located in a pre-configured scheduling interval .

 The method according to claim 8, wherein the method further comprises: acquiring the scheduling interval by using system information, the physical layer scheduling format indication channel, or a medium access control layer control unit.

 The method according to any one of claims 7 to 9, wherein the method further comprises:

 Determining whether the common downlink control information DCI is detected within the current transmission time interval;

 When it is determined that the common DCI is detected, the control channel in the common search space is blindly detected to obtain the common DCI.

 The method according to claim 10, wherein the determining whether to detect a common DCI in a current transmission time interval comprises:

 Public PDI indication information sent by the physical layer scheduling format indication channel, or according to at least one of format 2 and format 3 of the control channel according to the second format set, or public DCI included according to the RRC signaling The detection information determines whether the common DCI is detected within the current transmission time interval.

12. A method for transmitting scheduling information, comprising: Transmitting, by the user equipment, radio resource control RRC signaling, where the RRC signaling includes a first format set used by the control channel;

 Transmitting, by the physical layer scheduling format indication channel, format indication information to the user equipment, where the format indication information indicates a second format set used by the control channel in a current transmission time interval; and the search space specified by the user equipment The control channel is configured to send scheduling information to the user equipment, where the control channel in the user equipment-specific search space uses the control channel format in the first format set and the second format set.

 The method according to claim 12, wherein the method further comprises: generating a random number corresponding to the user equipment according to a predetermined rule,

 The sending the scheduling information to the user equipment includes:

 When it is determined that the random number is located in a pre-configured scheduling interval, the scheduling information is sent to the user equipment by using a control channel in a search space specific to the user equipment.

 The method according to claim 13, wherein the method further comprises: transmitting, by using the system information, the physical layer scheduling format indication channel or the medium access control layer control unit, to the user equipment Scheduling interval.

 The method according to any one of claims 12 to 14, wherein the method further comprises:

 Transmitting, by the physical layer scheduling format indication channel, the common DCI indication information to the user equipment, or by using the second format set sent to the user equipment to include at least one of format 2 and format 3 of the control channel, Or by sending the RRC signaling including the public DCI detection information to the user equipment, to notify the user equipment whether to detect a public DCI in a current transmission time interval.

 A method for transmitting scheduling information, comprising:

 Determining, by the control channel, a first control channel element CCE aggregation level set in the current transmission time interval, and quantity information and location information of the control channel corresponding to each CCE aggregation level in the first CCE aggregation level set;

 Determining, by the first CCE aggregation level set, a CCE aggregation level that matches a third CCE aggregation level set indicated by the high layer signaling, as a second CCE aggregation level set used by the control channel carrying the scheduling information of the user equipment;

And according to the quantity information, the location information, and the second CCE aggregation level set, The control channel in the search space specific to the user equipment performs blind detection to obtain the scheduling information of the user equipment.

 The method according to claim 16, wherein the method further comprises: when the control channel corresponding to each CCE aggregation level in the second CCE aggregation level set includes at least two control channels, Determining, by performing a modulo operation on the first value corresponding to the user equipment, a location of a control channel carrying scheduling information of the user equipment in the at least two control channels.

 The method according to claim 16 or 17, wherein the determining a first control channel unit CCE aggregation level set for the control channel in the current transmission time interval, and the first CCE aggregation level set The quantity information and location information of the corresponding control channel of each CCE aggregation level in the medium, including:

 Determining the first CCE aggregation level set, the quantity information, and the location information by using a physical layer scheduling format indication format indication information and a preset rule received by the channel, or a location indication information received by the physical layer scheduling format indication channel The format indication information indicates the first CCE aggregation level set used by the control channel in the current transmission time interval, where the location indication information includes the first CCE aggregation level set, the quantity information, and the location information.

 19. A method of transmitting scheduling information, comprising:

 Determining, by the control channel, a first control channel element CCE aggregation level set in the current transmission time interval, and quantity information and location information of the control channel corresponding to each CCE aggregation level in the first CCE aggregation level set;

 Determining, as the control channel carrying the scheduling information of the first user equipment, the CCE aggregation level that matches the first CCE aggregation level set and the third CCE aggregation level set sent to the first user equipment by using the high layer signaling a second set of CCE aggregation levels;

 And transmitting, according to the quantity information, the location information, and the second CCE aggregation level set, the scheduling information to the first user equipment by using a control channel in a search space specific to the first user equipment.

The method according to claim 19, wherein the method further comprises: when the control channel corresponding to each CCE aggregation level in the second CCE aggregation level set includes at least two control channels, Determining, by using a modulo operation on the first value corresponding to the first user equipment, a control channel that carries scheduling information of the first user equipment in the at least two The position in the channel.

 The method according to claim 19 or 20, wherein the determining a first control channel unit CCE aggregation level set for the control channel in the current transmission time interval, and the first CCE aggregation level set The quantity information and location information of the corresponding control channel of each CCE aggregation level in the medium, including:

 Determining, by the physical layer scheduling format, the format indication information sent by the channel to the first user equipment, and the preset rule, or the location indication information sent by the physical layer scheduling format indication channel to the first user equipment, to determine the first a CCE aggregation level set, the quantity information, and the location information, where the format indication information indicates the first CCE aggregation level set used by the control channel in the current transmission time interval, where the location indication information includes the A CCE aggregation level set, the quantity information, and the location information.

 22. A user equipment, comprising:

 a generating module, configured to generate a random number corresponding to the user equipment according to a predetermined rule; and a detecting module, configured to: when determining that the random number generated by the generating module is located in a pre-configured scheduling interval, the user equipment The control channel in the specific search space performs blind detection to obtain scheduling information of the user equipment.

The user equipment according to claim 22, wherein the predetermined rule used by the generating module is determined by the following equation:

The random number corresponding to the user equipment generated in the subframe ^: is an intermediate parameter generated in the subframe, Y_ _x = n _mTI ≠ ), «the identifier of the user equipment, and /) It is a prime number, and 0 ≤ 9.

 The user equipment according to claim 22 or 23, wherein the user equipment further comprises:

 And an obtaining module, configured to acquire the scheduling interval by using system information, a physical layer scheduling format indication channel, or a medium access control layer control unit.

 25. A base station, comprising:

a generating module, configured to generate a random number corresponding to the user equipment to be scheduled according to a predetermined rule; a first sending module, configured to: when the random number generated by the generating module is located in a pre-configured scheduling interval, to the to-be-scheduled user by using a control channel in a search space specific to the user equipment to be scheduled The device sends scheduling information of the user equipment to be scheduled.

The base station according to claim 25, wherein the predetermined rule used by the generating module is determined by the following equation:

Wherein, in the sub-frame is ^: scheduled to be generated by the random number corresponding to the user equipment for the subframe ^: scheduling the user equipment generates the intermediate _{parameter, Y_ l = n RNTI ≠ 0} , « the dish is to be The identification, ^ and D are prime numbers, and 0 ≤ A ≤ 9.

 The base station according to claim 25 or 26, wherein the base station further comprises: a second sending module, configured to use a system information, a physical layer scheduling format indication channel, or a medium access control layer control unit, to The to-be-scheduled user equipment sends the scheduling interval.

 28. A user equipment, comprising:

 a first receiving module, configured to receive radio resource control RRC signaling sent by the base station, where the RRC signaling includes a first format set used by the control channel;

 a second receiving module, configured to receive format indication information sent by the base station by using a physical layer scheduling format indication channel, where the format indication information indicates a second format set used by the control channel in a current transmission time interval;

 a detecting module, configured to perform blind detection on a control channel in a search space specific to the user equipment according to the matched control channel format in the first format set and the second format set, to obtain a scheduling of the user equipment information.

 The user equipment according to claim 28, wherein the user equipment further comprises:

 a generating module, configured to generate a random number corresponding to the user equipment according to a predetermined rule, where the detecting module is further configured to: when determining that the random number is located in a pre-configured scheduling interval, the search space specific to the user equipment The internal control channel performs blind detection.

The user equipment according to claim 29, wherein the user equipment further includes: And a first acquiring module, configured to acquire the scheduling interval by using system information, the physical layer scheduling format indication channel, or a medium access control layer control unit.

 The user equipment according to any one of claims 28 to 30, wherein the user equipment further comprises:

 a determining module, configured to determine whether a common downlink control information is detected within a current transmission time interval

DCI;

 And a second acquiring module, configured to perform blind detection on the control channel in the common search space to determine the common DCI when determining the detecting the common DCI.

 The user equipment according to claim 31, wherein the determining module is further configured to:

 Public PDI indication information sent by the physical layer scheduling format indication channel, or according to at least one of format 2 and format 3 of the control channel according to the second format set, or public DCI included according to the RRC signaling The detection information determines whether the common DCI is detected within the current transmission time interval.

 33. A base station, comprising:

 a first sending module, configured to send, to the user equipment, radio resource control RRC signaling, where the RRC signaling includes a first format set used by the control channel;

 a second sending module, configured to send format indication information to the user equipment by using a physical layer scheduling format indication channel, where the format indication information indicates a second format set used by the control channel in a current transmission time interval;

 a third sending module, configured to send scheduling information to the user equipment by using a control channel in a search space specific to the user equipment, where the control channel in the user equipment specific search space uses the first format set A control channel format that matches the second set of formats.

 The base station according to claim 33, wherein the base station further includes: a generating module, configured to generate a random number corresponding to the user equipment according to a predetermined rule, where the third sending module is further configured to: And determining, when the random number is located in a pre-configured scheduling interval, sending the scheduling information to the user equipment by using a control channel in a search space specific to the user equipment.

The base station according to claim 34, wherein the base station further comprises: a fourth sending module, configured to, by using system information, the physical layer scheduling format indication channel or media And an access control layer control unit, configured to send the scheduling interval to the user equipment.

 The base station according to any one of claims 33 to 35, wherein the base station further comprises:

 a notification module, configured to send, by using the physical layer scheduling format indication channel, common DCI indication information to the user equipment, or by using the second format set sent to the user equipment, including format 2 and format 3 of the control channel At least one of the foregoing, or by transmitting the RRC signaling including the public DCI detection information to the user equipment, to notify the user equipment whether to detect a public DCI within a current transmission time interval.

 37. A user equipment, comprising:

 a first determining module, configured to determine a first control channel unit CCE aggregation level set used by the control channel in the current transmission time interval, and a control channel corresponding to each CCE aggregation level in the first CCE aggregation level set Quantity information and location information;

 And a second determining module, configured to determine, by the first CCE aggregation level set, a CCE aggregation level that matches a third CCE aggregation level set indicated by the high layer signaling, as a control channel that carries scheduling information of the user equipment. a second set of CCE aggregation levels used;

 a detecting module, configured to perform blind detection on a control channel in a search space specific to the user equipment according to the quantity information, the location information, and the second CCE aggregation level set, to obtain the user equipment The scheduling information.

 The user equipment according to claim 37, wherein the user equipment further comprises:

 a third determining module, configured to: when the control channel corresponding to each CCE aggregation level in the second CCE aggregation level set includes at least two control channels, by using a first value corresponding to the user equipment And a modulo operation, determining a location of a control channel carrying scheduling information of the user equipment in the at least two control channels.

 The user equipment according to claim 37 or 38, wherein the first determining module is further configured to:

Determining the first CCE aggregation level set, the quantity information, and the location information by using a physical layer scheduling format indication format indication information and a preset rule received by the channel, or a location indication information received by the physical layer scheduling format indication channel The format indication information indicates the first CCE aggregation level set used by the control channel in the current transmission time interval, and the location indication information packet The first CCE aggregation level set, the quantity information, and the location information are included.

 40. A base station, comprising:

 a first determining module, configured to determine a first control channel unit CCE aggregation level set used by the control channel in the current transmission time interval, and a control channel corresponding to each CCE aggregation level in the first CCE aggregation level set Quantity information and location information;

 a second determining module, configured to determine, by the first CCE aggregation level set, a CCE aggregation level that matches a third CCE aggregation level set sent by the high-level signaling to the first user equipment, to determine that the first user is a second set of CCE aggregation levels used by the control channel of the scheduling information of the device;

 a sending module, configured to send, according to the quantity information, the location information, and the second CCE aggregation level set, to the first user equipment by using a control channel in a search space specific to the first user equipment The scheduling information.

 The base station according to claim 40, wherein the base station further comprises: a third determining module, configured to include, on a control channel corresponding to each CCE aggregation level in the second CCE aggregation level set, Determining, by the modulo operation of the first value corresponding to the first user equipment, the control channel carrying the scheduling information of the first user equipment in the at least two control channels position.

 The base station according to claim 40 or 41, wherein the first determining module is further configured to:

 Determining, by the physical layer scheduling format, the format indication information sent by the channel to the first user equipment, and the preset rule, or the location indication information sent by the physical layer scheduling format indication channel to the first user equipment, to determine the first a CCE aggregation level set, the quantity information, and the location information, where the format indication information indicates the first CCE aggregation level set used by the control channel in the current transmission time interval, where the location indication information includes the A CCE aggregation level set, the quantity information, and the location information.