CN109196798B

CN109196798B - Auxiliary method and device for detecting physical downlink control channel

Info

Publication number: CN109196798B
Application number: CN201880001863.7A
Authority: CN
Inventors: 牟勤
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2018-08-31
Filing date: 2018-08-31
Publication date: 2021-11-09
Anticipated expiration: 2038-08-31
Also published as: WO2020042170A1; CN109196798A

Abstract

The embodiment of the present disclosure provides an auxiliary method for detecting a physical downlink control channel, which is used at a base station end, and includes: determining trend information of a transmission physical downlink control channel; determining detection sequence information for detecting the physical downlink control channel according to the tendency information, wherein the detection sequence information is used for indicating an action sequence of the user equipment for detecting the physical downlink control channel; and sending the detection sequence information to the user equipment. According to the embodiment of the disclosure, the user equipment detects the physical downlink control channel according to the action sequence indicated by the detection sequence information, so that the user equipment can detect the DCI with the maximum possible DCI number through fewer detection times, and excessive power consumption caused by the fact that the user equipment detects the physical downlink control channel at a position where the base station does not tend to transmit the physical downlink control channel is avoided.

Description

Auxiliary method and device for detecting physical downlink control channel

Technical Field

The present application relates to the field of communications technologies, and in particular, to an auxiliary method for detecting a physical downlink control channel, an auxiliary apparatus for detecting a physical downlink control channel, an electronic device, and a computer-readable storage medium.

Background

With the popularization of mobile bandwidth services, the power consumption problem is always a problem to be solved urgently by terminals such as mobile phones and the like. By analyzing the power consumption of the 5G terminal, it is found that the receiving and processing of the PDCCH (Physical Downlink Control Channel) belong to the operation of the terminal with high power consumption. The main reason is that the position of the PDCCH sent by the base station is not fixed, the terminal serving as the user equipment needs to perform blind detection on the PDCCH in more potential positions, and each blind detection involves receiving and processing the PDCCH, thereby causing more power consumption.

Disclosure of Invention

In view of this, embodiments of the present disclosure provide an auxiliary method for detecting a physical downlink control channel, an auxiliary apparatus for detecting a physical downlink control channel, an electronic device, and a computer-readable storage medium.

According to a first aspect of the embodiments of the present disclosure, an auxiliary method for detecting a physical downlink control channel is provided, where the auxiliary method is used at a base station, and includes:

determining trend information of a transmission physical downlink control channel;

determining detection sequence information for detecting the physical downlink control channel according to the tendency information, wherein the detection sequence information is used for indicating an action sequence of the user equipment for detecting the physical downlink control channel;

and sending the detection sequence information to the user equipment.

Optionally, the detection sequence information includes at least one of the following or a combination thereof:

detecting the physical downlink control channel according to the indicated sequence of the search space;

detecting the physical downlink control channels according to the indicated sequence of the aggregation degree of the control channel units;

detecting the physical downlink control channels according to the indicated sequence of the transmission positions of the potential physical downlink control channels under the aggregation degree of each control channel unit;

and detecting the physical downlink control channel according to the indicated size sequence of the downlink control information.

Optionally, the method further comprises:

determining the number of physical downlink control channels currently and actually transmitted to user equipment;

determining quantity auxiliary information according to the quantity, wherein the quantity auxiliary information is used for indicating the actual quantity of the physical downlink control channels required to be detected by the user equipment;

sending quantity assistance information to the user equipment.

Optionally, the number assistance information is included in the downlink control information and/or in cyclic redundancy check scrambling information of the downlink control information and/or in other information included in the downlink control information.

Optionally, the method further comprises:

determining the last downlink control information sent to the user equipment according to the detection sequence information;

determining sequence number auxiliary information according to the detection sequence information, wherein the sequence number auxiliary information is used for indicating whether the downlink control information detected by the user equipment is the last downlink control information;

and sending the sequence number auxiliary information to the user equipment.

Optionally, the sequence number auxiliary information is included in the downlink control information and/or in cyclic redundancy check scrambling information of the downlink control information and/or in other information included in the downlink control information.

According to a second aspect of the embodiments of the present disclosure, an auxiliary method for detecting a physical downlink control channel is provided, where the auxiliary method is used at a user equipment side, and includes:

receiving detection sequence information for detecting a physical downlink control channel, which is sent by a base station, wherein the detection sequence information is used for indicating an action sequence of user equipment for detecting the physical downlink control channel;

and detecting the physical downlink control channel according to the action sequence indicated by the detection sequence information.

detecting physical downlink control channels in order of indicated aggregation degree of control channel units

Optionally, the method further comprises:

receiving quantity auxiliary information sent by a base station, wherein the quantity auxiliary information is used for indicating the actual quantity of physical downlink control channels required to be detected by user equipment;

and determining whether the detected physical downlink control channels reach the actual number, and stopping detection if the detected physical downlink control channels reach the actual number.

Optionally, the quantity assistance information sent by the receiving base station includes:

analyzing the received downlink control information to determine the quantity auxiliary information; or

Attempting to descramble a cyclic redundancy check of the received physical downlink control channel;

and determining the quantity of auxiliary information according to the descrambling information after successful descrambling.

Optionally, the method further comprises:

receiving sequence number auxiliary information sent by a base station, wherein the sequence number auxiliary information is used for indicating whether downlink control information detected by user equipment is the last downlink control information or not;

and determining whether the detected physical downlink control channel is the last downlink control information or not according to the sequence number auxiliary information, and stopping detection if the detected physical downlink control channel is the last downlink control information.

Optionally, the sequence number auxiliary information sent by the receiving base station includes:

analyzing the received physical downlink control channel to determine the sequence number auxiliary information; or

and determining the auxiliary information of the sequence number according to the descrambling information after successful descrambling.

According to a third aspect of the embodiments of the present disclosure, an auxiliary method for detecting a physical downlink control channel is provided, including:

sending quantity assistance information to the user equipment.

Optionally, the actual number is a total number of the pdcch messages that the ue needs to detect in all the search spaces.

Optionally, the actual number includes a number of physical downlink control channel messages respectively required to be detected by the user equipment in each search space.

According to a fourth aspect of the embodiments of the present disclosure, an auxiliary method for detecting a physical downlink control channel is provided, including:

Optionally, the actual number is a total number of the physical downlink control channels that the user equipment needs to detect in all the search spaces, where the determining whether the detected physical downlink control channels reach the actual number includes:

determining whether the sum of the number of detected physical downlink control channels in each search space reaches the actual number.

Optionally, the actual number includes a number of physical downlink control channels that the user equipment respectively needs to detect in each search space, where the determining whether the detected physical downlink control channels reach the actual number includes:

and when the detected physical downlink control channel in any search space reaches the number of the physical downlink control channels which need to be detected and correspond to the search space, determining to finish the detection of the search space, and detecting the physical downlink control channel in the next search space until the detection of all the search spaces is finished.

According to a fifth aspect of the embodiments of the present disclosure, an auxiliary device for detecting a physical downlink control channel is provided, where the auxiliary device is used at a base station, and includes:

the device comprises a tendency determining module, a tendency determining module and a tendency determining module, wherein the tendency determining module is configured to determine tendency information of a transmission physical downlink control channel;

a sequence determining module configured to determine detection sequence information for detecting a physical downlink control channel according to the tendency information, wherein the detection sequence information is used for indicating an action sequence of a user equipment for detecting the physical downlink control channel;

an information sending module configured to send the detection order information to the user equipment.

Optionally, the apparatus further comprises:

the number determining module is configured to determine the number of physical downlink control channels currently and actually transmitted to the user equipment;

an information determining module configured to determine quantity auxiliary information according to the quantity, wherein the quantity auxiliary information is used for indicating an actual quantity of physical downlink control channels required to be detected by the user equipment;

wherein the information transmitting module is further configured to transmit quantity assistance information to the user equipment.

Optionally, the apparatus further comprises:

a last determining module configured to determine last downlink control information sent to the user equipment according to the detection sequence information;

a sequence number determining module configured to determine sequence number auxiliary information according to the detection sequence information, wherein the sequence number auxiliary information is used to indicate whether the downlink control information detected by the user equipment is the last downlink control information;

wherein the information sending module is further configured to send sequence number assistance information to the user equipment.

According to a sixth aspect of the embodiments of the present disclosure, an auxiliary device for detecting a physical downlink control channel is provided, where the auxiliary device is used at a user equipment side, and the auxiliary device includes:

an information receiving module, configured to receive detection sequence information for detecting a physical downlink control channel sent by a base station, where the detection sequence information is used to indicate an action sequence of a user equipment for detecting the physical downlink control channel;

and the channel detection module is configured to detect the physical downlink control channel according to the action sequence indicated by the detection sequence information.

Optionally, the information receiving module is further configured to receive quantity auxiliary information sent by the base station, where the quantity auxiliary information is used to indicate an actual quantity of physical downlink control channels that the user equipment needs to detect;

the channel detection module is further configured to determine whether the detected physical downlink control channels reach the actual number, and stop the detection if the detected physical downlink control channels reach the actual number.

Optionally, the information receiving module is configured to parse the received downlink control information to determine the quantity auxiliary information; or attempting to descramble a cyclic redundancy check of the received physical downlink control channel; and determining the quantity of auxiliary information according to the descrambling information after successful descrambling.

Optionally, the information receiving module is further configured to receive sequence number auxiliary information sent by the base station, where the sequence number auxiliary information is used to indicate whether the downlink control information detected by the user equipment is the last downlink control information;

the channel detection module is further configured to determine whether the detected physical downlink control channel is the last downlink control information according to the sequence number auxiliary information, and stop the detection if the detected physical downlink control channel is the last downlink control information.

Optionally, the information receiving module is further configured to parse the received physical downlink control channel to determine the sequence number auxiliary information; or attempting to descramble a cyclic redundancy check of the received physical downlink control channel; and determining the auxiliary information of the sequence number according to the descrambling information after successful descrambling.

According to a seventh aspect of the embodiments of the present disclosure, an auxiliary device for detecting a physical downlink control channel is provided, including:

an information transmitting module configured to transmit the quantity assistance information to the user equipment.

According to an eighth aspect of the embodiments of the present disclosure, an auxiliary device for detecting a physical downlink control channel is provided, including:

an information receiving module, configured to receive quantity auxiliary information sent by a base station, where the quantity auxiliary information is used to indicate an actual quantity of physical downlink control channels that need to be detected by a user equipment;

and the quantity detection module is configured to determine whether the detected physical downlink control channels reach the actual quantity or not, and stop detection if the detected physical downlink control channels reach the actual quantity.

Optionally, the actual number is a total number of the physical downlink control channels that the user equipment needs to detect in all the search spaces, wherein the number detection module is configured to determine whether a sum of the number of the physical downlink control channels detected in each search space reaches the actual number.

Optionally, the actual number includes the number of physical downlink control channels that the user equipment needs to detect in each search space, respectively, where the number detection module is configured to determine to complete detection of any search space when the physical downlink control channel detected in the search space reaches the number of physical downlink control channels that the search space corresponds to and needs to detect, and detect a physical downlink control channel in a next search space until detection of all search spaces is completed.

According to a ninth aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the steps of the method of any preceding claim.

According to a tenth aspect of embodiments of the present disclosure, a computer-readable storage medium is proposed, on which a computer program is stored, which when executed by a processor implements the steps in the method of any of the preceding claims.

According to the embodiment of the present disclosure, since the base station has a certain tendency to transmit the physical downlink control channel, the detection sequence information of the ue detecting the physical downlink control channel can be determined according to the tendency information corresponding to the tendency, and then the detection sequence information is sent to the ue to indicate the action sequence of the ue detecting the physical downlink control channel, so that the ue detects the physical downlink control channel according to the action sequence indicated by the detection sequence information, which is convenient for the ue to detect DCI reaching the maximum possible DCI number through a small number of detection times, thereby avoiding excessive power consumption caused by the ue detecting the physical downlink control channel at a position where the base station does not tend to transmit the physical downlink control channel.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

Fig. 1 is a schematic flow chart diagram illustrating a secondary method for detecting a physical downlink control channel according to an embodiment of the present disclosure;

fig. 2 is a schematic flow chart diagram illustrating another secondary method for detecting a physical downlink control channel according to an embodiment of the disclosure;

fig. 3 is a schematic flow chart diagram illustrating another auxiliary method for detecting a physical downlink control channel according to an embodiment of the disclosure;

fig. 4 is a schematic flow chart diagram illustrating another auxiliary method for detecting a physical downlink control channel according to an embodiment of the disclosure;

fig. 5 is a schematic flow chart diagram illustrating another auxiliary method for detecting a physical downlink control channel according to an embodiment of the disclosure;

fig. 6 is a schematic flow chart diagram illustrating another auxiliary method for detecting a physical downlink control channel according to an embodiment of the disclosure;

fig. 7 is a schematic flow chart diagram illustrating yet another secondary method for detecting a physical downlink control channel according to an embodiment of the present disclosure;

fig. 8 is a schematic flow chart diagram illustrating yet another secondary method for detecting a physical downlink control channel according to an embodiment of the present disclosure;

fig. 9 is a schematic flow chart diagram illustrating yet another secondary method for detecting a physical downlink control channel according to an embodiment of the present disclosure;

fig. 10 is a schematic flow chart diagram illustrating yet another secondary method for detecting a physical downlink control channel according to an embodiment of the present disclosure;

fig. 11 is a schematic block diagram illustrating an auxiliary device for detecting a physical downlink control channel according to an embodiment of the disclosure;

fig. 12 is a schematic block diagram illustrating another auxiliary device for detecting a physical downlink control channel according to an embodiment of the disclosure;

fig. 13 is a schematic block diagram illustrating yet another auxiliary device for detecting a physical downlink control channel according to an embodiment of the disclosure;

fig. 14 illustrates yet another auxiliary device for detecting a physical downlink control channel according to an embodiment of the disclosure;

fig. 15 illustrates another auxiliary device for detecting a physical downlink control channel according to an embodiment of the disclosure;

fig. 16 illustrates yet another auxiliary device for detecting a physical downlink control channel according to an embodiment of the disclosure;

fig. 17 is a schematic structural diagram illustrating an auxiliary apparatus for detecting a physical downlink control channel according to an embodiment of the disclosure;

fig. 18 is a schematic structural diagram illustrating an auxiliary apparatus for detecting a physical downlink control channel according to an embodiment of the disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the 5G NR (New Radio, New air interface) technology, a ue may be configured with search spaces of multiple PDCCHs, and in any search space, the aggregation degree of a CCE (Control channel element) on which the ue performs blind detection on a PDCCH may be further configured, and under different aggregation degrees, the location of the blind detection PDCCH may be further configured, and because the PDCCH may carry different DCI (Downlink Control Information) formats, and different DCI formats may have different DCI sizes (sizes), the DCI size that the ue needs to detect may also be configured.

For example, the user equipment is configured with two search spaces, search space 1 is shown in table 1, and search space 2 is shown in table 2:

TABLE 1

TABLE 2

Based on a blind detection mode in the related art, the user equipment stops blind detection of the PDCCH under two conditions, one is that when the number of the detected DCI reaches the maximum possible DCI number, the DCI and the PDCCH have a one-to-one correspondence relationship, and the number of the detected PDCCH can be determined according to the number of the detected DCI; and traversing all the contents needing to be detected in all the search spaces.

In this case, the user equipment needs to detect DCI according to the following procedure: firstly, in a search space 1, performing blind detection on 4 positions under the condition that the CCE aggregation degree is 1, performing blind detection on 2 positions under the condition that the CCE aggregation degree is 2, performing blind detection on 2 positions under the condition that the CCE aggregation degree is 4, and detecting DCI size1 and DCI size2 at each blind detection position; then, in the search space 2, blind detection is performed on 2 positions if the CCE aggregation level is 4, blind detection is performed on 1 position if the CCE aggregation level is 8, blind detection is performed on 1 position if the CCE aggregation level is 16, and detection of DCI size3 and DCI size4 is required at each blind detection position.

When detecting that the number of the DCIs reaches the maximum possible DCI number, stopping the blind detection, for example, when the number of the DCIs detected in the search space 1 reaches the maximum possible DCI number, the blind detection may be stopped, and thus the search space 2 does not need to be detected any more; otherwise, the blind detection is stopped after all the contents to be detected in the two search spaces are detected according to the process.

However, in most practical cases, the base station has some tendency to transmit the physical downlink control channel, and the DCI is not uniformly distributed in the search space, and the retrieval operation performed by the user equipment in the search space has no tendency, so that the chance of terminating the detection operation as soon as possible due to the preferentially detected DCI is missed, resulting in excessive power consumption.

Fig. 1 is a schematic flowchart illustrating an auxiliary method for detecting a physical downlink control channel according to an embodiment of the present disclosure, where the method is applied to a base station, and the base station may communicate with a user equipment based on a 5G NR technology, where the user equipment may be an electronic device such as a mobile phone, a tablet computer, and a wearable device.

As shown in fig. 1, the auxiliary method for detecting a physical downlink control channel includes:

in step S11, determining trend information of the transmission physical downlink control channel;

in step S12, determining detection sequence information for detecting a physical downlink control channel according to the trend information, wherein the detection sequence information is used for indicating an action sequence of detecting the physical downlink control channel by the user equipment;

in step S13, the detection order information is sent to the user equipment.

In one embodiment, the base station may determine the trend information for transmitting the physical downlink control channel according to various aspects of information.

For example, the base station itself stores configuration information, and the tendency information determined according to the configuration information may instruct the base station to preferentially transmit DCI at a position with a smaller number. In this case, the ue is instructed to preferentially detect DCI at the potential pdcch transmission position with the smaller code number according to the detection order information determined by the trend information.

For example, the base station may acquire a channel condition of the user equipment, and if the channel condition is poor, the base station preferentially transmits the DCI with a higher aggregation level according to the tendency information determined by the configuration information. In this case, the user equipment is instructed to preferentially detect the DCI with the higher aggregation level of the CCEs, based on the detection order information determined by the trend information.

It should be noted that, since the DCI and the physical downlink control channel are in one-to-one correspondence, detecting the DCI can be equivalent to detecting the physical downlink control channel.

In one embodiment, the dimension of the physical downlink control channel detected by the user equipment includes: the search space, the aggregation level of CCEs, the transmission position of the potential physical downlink control channel under the aggregation level of each CCE, and the size of the downlink control information, and therefore, the detection order may indicate one or more of the above 4 dimensions.

For example, the detection order information is to detect the physical downlink control channel according to the indicated search space order, where the indicated search space order is: search space 1, search space 2, and the maximum possible DCI number is 2. The ue may first detect DCI in search space 1, and if 2 DCIs are detected in search space 1, the detection may be stopped, so as to avoid power consumption caused by preferentially detecting search space 2.

For example, the detection order information is to detect the physical downlink control channels in the order of the indicated aggregation degrees of the control channel elements, and the order of the indicated aggregation degrees of the CCEs is: 4. 8, 16, 2, 1, and the maximum possible DCI number is 2. The user equipment may perform detection in the two search spaces in the order of the aggregation levels of CCEs of 4, 8, 16, 2, and 1, and may stop the detection if one DCI is detected when the aggregation level of CCEs is 4 and one DCI is detected when the aggregation level of CCEs is 8, thereby saving power consumption for detection when the aggregation level of CCEs is 16, 2, and 1.

In the case that the detection order information includes a plurality of dimensions among the above-mentioned 4 dimensions, the user equipment may take a dimension with smaller power consumption required for switching the dimensional content among the plurality of dimensions as a preferred dimension to reduce power consumption.

For example, the detecting the sequence information includes detecting the physical downlink control channel according to the indicated sequence of the search space, and detecting the physical downlink control channel according to the indicated sequence of the aggregation degree of the control channel elements, and if the power consumption of the user equipment from changing the search space is less than the power consumption for changing the aggregation degree of the CCEs, the user equipment takes the search space as a priority dimension, that is, when the aggregation degree of adjacent CCEs spans the search space, or when the same CCE aggregation degree exists in different search spaces, the search space is preferentially switched to ensure the detection according to the indicated sequence of the aggregation degree of the CCEs.

Specifically, for example, the order of the indicated search spaces is: search space 1 and search space 2, wherein the indicated sequence of the aggregation degrees of the CCEs is as follows: 4. 8, 16, 2, 1, and the maximum possible DCI number is 2, and there is a case where the aggregation level of CCEs is 4 in both search space 1 and search space 2, then DCI may be detected in search space 1 with the aggregation level of CCEs being 4, and if one DCI is detected in each of the two detections, then detection may be stopped.

Fig. 2 is a schematic flow chart diagram illustrating another auxiliary method for detecting a physical downlink control channel according to an embodiment of the disclosure. As shown in fig. 2, the method further comprises:

in step S14, determining the number of physical downlink control channels currently and actually transmitted to the user equipment;

in step S15, determining quantity auxiliary information according to the quantity, where the quantity auxiliary information is used to indicate an actual quantity of the physical downlink control channels that the user equipment needs to detect;

in step S16, quantity assistance information is sent to the user equipment.

In one embodiment, the user equipment is based on the maximum possible DCI number when detecting DCI, i.e. the detection is stopped when the detected DCI number reaches the maximum possible DCI number. However, the maximum possible DCI number is often greater than the number of the physical downlink control channels currently and actually transmitted to the user equipment by the base station, which may cause the user equipment to continue to detect all the DCI currently and actually transmitted to the user equipment by the base station, however, there is no DCI yet to be detected, thereby causing a waste of power.

The base station indicates the actual number of the physical downlink control channels which need to be detected by the user equipment by sending the number auxiliary information to the user equipment, so that the user equipment can stop detecting when detecting the DCI of the actual number, thereby avoiding power waste caused by unnecessary detection operation.

In one embodiment, the base station may carry the number assistance information through the DCI, where the number assistance information may be corresponding to one or more bytes in the DCI, for example, two bits in the DCI correspond to the number assistance information, and if the two bits are 00, the indicated actual number is 1, if the two bits are 01, the indicated actual number is 2, if the two bits are 10, the indicated actual number is 3, and if the two bits are 11, the indicated actual number is 4.

In one embodiment, the base station may carry the number assistance information through CRC (cyclic redundancy check) scrambling information of the DCI, where the scrambling information may be C-RNTI (cell radio network temporary identity), for example, the actual number is 1 as indicated by C-RNTI being 1, 2 as indicated by C-RNTI being 2, 3 as indicated by C-RNTI being 3, and 4 as indicated by C-RNTI being 4.

Taking the example that the base station carries the number auxiliary information through the DCI, if the indicated actual number is 1, when the user equipment detects a DCI, the actual number of the physical downlink control channel to be detected can be determined to be 1 by analyzing the DCI, that is, only 1 DCI needs to be detected, and then the subsequent detection can be stopped; if the indicated actual number is 2, when the user equipment detects 1 DCI, it may be determined that the actual number of the physical downlink control channels to be detected is 2 by analyzing the DCI, that is, 2 DCIs need to be detected, so that the DCI may be continuously detected, and when the 2 nd DCI is detected, the detection is stopped.

In addition, the number assistance information may be set in other information in the DCI as necessary.

Optionally, the actual number is a total number of downlink control channel messages that the ue needs to detect in all search spaces.

In one embodiment, the actual number may be one, in which case the actual number may be the total number of downlink control channel messages that the user equipment needs to detect in all search spaces, for example, the actual number is 2, and then the user equipment may detect one by one for a plurality of search spaces and stop detecting when two DCIs are detected.

Optionally, the actual number includes a number of downlink control channel messages respectively required to be detected by the user equipment in each search space.

In one embodiment, the actual number may be a plurality of numbers, in which case, the actual number may be the number of downlink control channel messages that the user equipment needs to detect in each search space, for example, the actual number is 2 and 3, then the user equipment may detect for search space 1 first, detect for search space 2 when two DCIs detected in search space 1, and stop detecting when 3 DCIs detected in search space 2.

Fig. 3 is a schematic flow chart diagram illustrating another auxiliary method for detecting a physical downlink control channel according to an embodiment of the disclosure. As shown in fig. 3, the method further comprises:

in step S17, determining the last downlink control information to be sent to the ue according to the detection sequence information;

in step S18, determining sequence number auxiliary information according to the detection sequence information, where the sequence number auxiliary information is used to indicate whether the downlink control information detected by the ue is the last downlink control information;

in step S19, sequence number assistance information is sent to the user equipment.

In an embodiment, since the base station may instruct the user equipment to detect the action sequence of the PDCCHs through the detection sequence, the base station may determine which PDCCH transmitted to the user equipment is the last PDCCH according to the detection sequence information, that is, may determine which DCI transmitted to the user equipment is the last DCI, and may further determine the sequence number auxiliary information according to the detection sequence, and instruct, through the sequence number auxiliary information, whether the DCI detected by the user equipment is the last DCI, for example, the sequence number auxiliary information occupies one bit, when the bit is 1, it indicates that the DCI detected by the user equipment is the last DCI, and when the bit is 0, it indicates that the DCI detected by the user equipment is not the last DCI.

Accordingly, the user equipment may determine whether the detected DCI is the last DCI according to the sequence number assistance information, may continue the detection when it is determined that the detected DCI is not the last DCI, and may stop the detection when it is determined that the detected DCI is the last DCI, so as to avoid wasting power.

In an embodiment, the base station may carry the sequence number auxiliary information through the DCI, where one or more bytes in the DCI may correspond to the sequence number auxiliary information, for example, one bit in the DCI corresponds to the sequence number auxiliary information, if the bit is 0, it is indicated that the DCI where the bit is located is not the last DCI, and if the bit is 1, it is indicated that the DCI where the bit is located is the last DCI. After determining the last DCI sent to the user equipment according to the detection sequence information, the base station may indicate that the DCI is the last DCI through a bit carried by the last DCI.

In one embodiment, the base station may carry the sequence number auxiliary information through CRC scrambling information of the DCI, where the scrambling information may be C-RNTI, for example, C-RNTI of 1 indicates that the DCI is not the last DCI, and C-RNTI of 2 indicates that the DCI is the last DCI. After the base station determines the last DCI sent to the user equipment according to the detection sequence information, the base station can indicate that the DCI is the last DCI through the auxiliary information of the sequence number carried by the CRC scrambling information of the last DCI.

Fig. 4 is a schematic flow chart diagram illustrating another auxiliary method for detecting a physical downlink control channel according to an embodiment of the disclosure. The method shown in this embodiment can be applied to a user equipment terminal, where the user equipment can be an electronic device such as a mobile phone, a tablet computer, and a wearable device, and the user equipment can communicate with a base station based on a 5G NR technology.

As shown in fig. 4, the auxiliary method for detecting a physical downlink control channel includes:

in step S21, receiving detection sequence information for detecting a physical downlink control channel, which is sent by a base station, wherein the detection sequence information is used to instruct a user equipment to detect an action sequence of the physical downlink control channel;

in step S22, the physical downlink control channel is detected according to the operation sequence indicated by the detection sequence information.

Fig. 5 is a schematic flow chart diagram illustrating another auxiliary method for detecting a physical downlink control channel according to an embodiment of the disclosure. As shown in fig. 5, the method further comprises:

in step S23, receiving quantity assistance information sent by the base station, where the quantity assistance information is used to indicate an actual quantity of physical downlink control channels that the user equipment needs to detect;

in step S24, it is determined whether the detected pdcch reaches the actual number, and if so, the detection is stopped.

It should be noted that step S23 may be executed simultaneously with step S21, that is, when the detection order information is received, the quantity assistance information is also received. Accordingly, step S24 may be performed simultaneously with step S22, that is, the PDCCH is detected according to two information, i.e., the detection order information and the number assistance information.

By receiving the quantity auxiliary information sent by the base station, the actual quantity of the physical downlink control channels to be detected can be determined, so that the user equipment can stop detecting when detecting the DCI of the actual quantity, thereby avoiding power waste caused by unnecessary detection operation.

In one embodiment, the number assistance information may be included in DCI, in which case the user equipment may determine the number assistance information by parsing the received DCI.

In one embodiment, the number auxiliary information may be included in crc scrambling information of the downlink control information, in which case, the ue attempts to descramble crc of the received physical downlink control channel, where multiple pieces of descrambling information may be used to perform attempts respectively, and the number auxiliary information is determined according to descrambling information that is descrambled successfully.

Optionally, the actual number is a total number of downlink control channel messages that need to be detected by the ue in all search spaces, where the determining whether the detected downlink control channel messages reach the actual number includes:

determining whether the actual number of downlink control channel messages detected in each search space is reached.

Optionally, the actual number includes a number of downlink control channel messages respectively required to be detected by the ue in each search space, where the determining whether the detected downlink control channel messages reach the actual number includes:

when the downlink control channel messages detected in any search space reach the number of the downlink control channel messages required to be detected corresponding to the search space, determining to finish the detection of the search space, and detecting the downlink control channel messages in the next search space until the detection of all the search spaces is finished.

Fig. 6 is a schematic flow chart diagram illustrating another auxiliary method for detecting a physical downlink control channel according to an embodiment of the disclosure. As shown in fig. 6, the method further comprises:

in step S25, receiving sequence number auxiliary information sent by the base station, where the sequence number auxiliary information is used to indicate whether the downlink control information detected by the ue is the last downlink control information;

in step S26, it is determined whether the detected pdcch is the last pdcch according to the sequence number auxiliary information, and if the detected pdcch is the last pdcch, the detection is stopped.

It should be noted that step S25 may be executed simultaneously with step S21, that is, when the detection sequence information is received, the sequence number auxiliary information is also received. Accordingly, step S26 may be performed simultaneously with step S22, that is, the PDCCH may be detected according to two information, i.e., the detection order information and the sequence number assistance information.

In one embodiment, the sequence number assistance information may be included in the DCI, in which case the user equipment may determine the sequence number assistance information by parsing the received DCI.

In one embodiment, the sequence number auxiliary information may be included in crc scrambling information of the downlink control information, in which case, the ue attempts to descramble crc of the received physical downlink control channel, where multiple pieces of descrambling information may be respectively used for attempting, and the sequence number auxiliary information is determined according to descrambling information that is successfully descrambled.

Fig. 7 is a schematic flow chart diagram illustrating another auxiliary method for detecting a physical downlink control channel according to an embodiment of the disclosure. As shown in fig. 7, the method includes:

in step S11', determining the number of physical downlink control channels currently and actually transmitted to the user equipment;

in step S12', determining quantity auxiliary information according to the quantity, wherein the quantity auxiliary information is used to indicate an actual quantity of the physical downlink control channels that the user equipment needs to detect;

in step S13', quantity assistance information is sent to the user equipment.

Fig. 8 is a schematic flow chart diagram illustrating another auxiliary method for detecting a physical downlink control channel according to an embodiment of the disclosure. As shown in fig. 8, the method further comprises:

in step S14', determining trend information of transmitting a physical downlink control channel;

in step S15', determining detection sequence information for detecting a physical downlink control channel according to the trend information, wherein the detection sequence information is used for indicating an action sequence of detecting the physical downlink control channel by the user equipment;

in step S16', the detection order information is transmitted to the user equipment.

Optionally, the determining the trend information for transmitting the pdcch message includes:

determining the trend information according to the received configuration instruction.

determining the trend information according to the channel condition of the user equipment.

Fig. 9 is a schematic flow chart diagram illustrating another auxiliary method for detecting a physical downlink control channel according to an embodiment of the disclosure. As shown in fig. 9, the method includes:

in step S21', receiving quantity assistance information sent by the base station, where the quantity assistance information is used to indicate an actual quantity of physical downlink control channels that the user equipment needs to detect;

in step S22', it is determined whether the detected physical downlink control channels reach the actual number, and if the detected physical downlink control channels reach the actual number, the detection is stopped.

Fig. 10 is a schematic flow chart diagram illustrating another auxiliary method for detecting a physical downlink control channel according to an embodiment of the disclosure. As shown in fig. 10, the method further includes:

in step S23', receiving detection sequence information for detecting a physical downlink control channel, which is sent by a base station, wherein the detection sequence information is used to instruct a user equipment to detect an action sequence of the physical downlink control channel;

in step S24', a physical downlink control channel is detected according to the operation sequence indicated by the detection sequence information.

Corresponding to the foregoing embodiments of the auxiliary method for detecting a physical downlink control channel, the present disclosure further provides embodiments of an auxiliary apparatus for detecting a physical downlink control channel.

Fig. 11 is a schematic block diagram of an auxiliary apparatus for detecting a physical downlink control channel according to an embodiment of the present disclosure, where the apparatus is used at a base station, and the base station may communicate with a user equipment based on a 5G NR technology, where the user equipment may be an electronic device such as a mobile phone, a tablet computer, and a wearable device.

As shown in fig. 11, the auxiliary apparatus for detecting a physical downlink control channel includes:

an inclination determining module 11 configured to determine inclination information of a transmission physical downlink control channel;

a sequence determining module 12 configured to determine detection sequence information for detecting a physical downlink control channel according to the trend information, wherein the detection sequence information is used for indicating an action sequence of the user equipment for detecting the physical downlink control channel;

an information sending module 13 configured to send the detection order information to the user equipment.

Fig. 12 is a schematic block diagram illustrating another auxiliary apparatus for detecting a physical downlink control channel according to an embodiment of the disclosure, and as shown in fig. 12, the apparatus further includes:

a number determining module 14 configured to determine the number of physical downlink control channels currently and actually transmitted to the user equipment;

an information determining module 15 configured to determine quantity auxiliary information according to the quantity, where the quantity auxiliary information is used to indicate an actual quantity of physical downlink control channels that the user equipment needs to detect;

wherein the information sending module 13 is further configured to send the quantity assistance information to the user equipment.

Fig. 13 is a schematic block diagram illustrating another auxiliary apparatus for detecting a physical downlink control channel according to an embodiment of the disclosure, and as shown in fig. 13, the apparatus further includes:

a last determining module 16 configured to determine the last downlink control information sent to the user equipment according to the detection sequence information;

a sequence number determining module 17 configured to determine sequence number auxiliary information according to the detection sequence information, where the sequence number auxiliary information is used to indicate whether the downlink control information detected by the ue is the last downlink control information;

wherein the information sending module 13 is further configured to send sequence number assistance information to the user equipment.

Fig. 14 is a diagram illustrating another auxiliary apparatus for detecting a physical downlink control channel according to an embodiment of the disclosure. The apparatus shown in this embodiment may be applied to a user equipment, where the user equipment may be an electronic device such as a mobile phone, a tablet computer, and a wearable device, and the user equipment may communicate with a base station based on a 5G NR technology.

As shown in fig. 14, the auxiliary apparatus for detecting a physical downlink control channel includes:

an information receiving module 21, configured to receive detection sequence information for detecting a physical downlink control channel sent by a base station, where the detection sequence information is used to indicate an action sequence of a user equipment for detecting the physical downlink control channel;

a channel detection module 22 configured to detect the physical downlink control channel according to the action sequence indicated by the detection sequence information.

Fig. 15 illustrates another auxiliary apparatus for detecting a physical downlink control channel according to an embodiment of the disclosure. As shown in fig. 15, the apparatus includes:

a number determining module 11' configured to determine the number of physical downlink control channels currently and actually transmitted to the user equipment;

an information determining module 12' configured to determine quantity auxiliary information according to the quantity, wherein the quantity auxiliary information is used for indicating an actual quantity of physical downlink control channels which need to be detected by the user equipment;

an information sending module 13' configured to send the quantity assistance information to the user equipment.

Fig. 16 is a diagram illustrating another auxiliary apparatus for detecting a physical downlink control channel according to an embodiment of the disclosure. As shown in fig. 16, the apparatus includes:

an information receiving module 21' configured to receive quantity auxiliary information sent by a base station, wherein the quantity auxiliary information is used for indicating an actual quantity of physical downlink control channels that need to be detected by a user equipment;

the number detection module 22' is configured to determine whether the detected physical downlink control channels reach the actual number, and stop the detection if the detected physical downlink control channels reach the actual number.

With regard to the apparatus in the above embodiments, the specific manner in which each module performs operations has been described in detail in the embodiments of the related method, and will not be described in detail here.

For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

An embodiment of the present disclosure also provides an electronic device, including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the steps of the method of any of the above embodiments.

Embodiments of the present disclosure also provide a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps in the method according to any of the above embodiments.

As shown in fig. 17, fig. 17 is a schematic structural diagram illustrating an auxiliary apparatus 1700 for detecting a physical downlink control channel according to an embodiment of the present disclosure. Apparatus 1700 may be provided as a base station. Referring to fig. 17, the apparatus 1700 includes a processing component 1722, a wireless transmit/receive component 1724, an antenna component 1726, and signal processing portions specific to the wireless interface, the processing component 1722 may further include one or more processors. One of the processors in the processing component 1722 may be configured to perform the steps in the method described in any of the embodiments above.

Fig. 18 is a schematic structural diagram illustrating an auxiliary device 1800 for detecting a physical downlink control channel according to an embodiment of the disclosure. For example, the apparatus 1800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 18, the apparatus 1800 may include one or more of the following components: processing component 1802, memory 1804, power component 1806, multimedia component 1808, audio component 1810, input/output (I/O) interface 1812, sensor component 1814, and communications component 1816.

The processing component 1802 generally controls the overall operation of the device 1800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 1802 may include one or more processors 1820 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 1802 may include one or more modules that facilitate interaction between the processing component 1802 and other components. For example, the processing component 1802 can include a multimedia module to facilitate interaction between the multimedia component 1808 and the processing component 1802.

The memory 1804 is configured to store various types of data to support operation at the apparatus 1800. Examples of such data include instructions for any application or method operating on the device 1800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 1804 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The power supply component 1806 provides power to the various components of the device 1800. The power components 1806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 1800.

The multimedia component 1808 includes a screen providing an output interface between the apparatus 1800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1808 includes a front facing camera and/or a rear facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 1800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

Audio component 1810 is configured to output and/or input audio signals. For example, the audio component 1810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 1800 is in operating modes, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 1804 or transmitted via the communication component 1816. In some embodiments, audio component 1810 also includes a speaker for outputting audio signals.

I/O interface 1812 provides an interface between processing component 1802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor component 1814 includes one or more sensors for providing various aspects of state assessment for the apparatus 1800. For example, the sensor assembly 1814 can detect an open/closed state of the device 1800, the relative positioning of components, such as a display and keypad of the device 1800, the sensor assembly 1814 can also detect a change in position of the device 1800 or a component of the device 1800, the presence or absence of user contact with the device 1800, orientation or acceleration/deceleration of the device 1800, and a change in temperature of the device 1800. Sensor assembly 1814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 1814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 1816 is configured to facilitate communications between the apparatus 1800 and other devices in a wired or wireless manner. The device 1800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1816 receives a broadcast signal or broadcast associated information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 1800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the methods described in any of the above embodiments.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as the memory 1804 including instructions that are executable by the processor 1820 of the apparatus 1800 to perform the above-described method. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The method and apparatus provided by the embodiments of the present invention are described in detail above, and the principle and the embodiments of the present invention are explained in detail herein by using specific examples, and the description of the embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. An auxiliary method for detecting a physical downlink control channel, performed by a base station, comprising:

determining tendency information for transmitting a physical downlink control channel, wherein the tendency information is used for indicating a base station to preferentially transmit DCI at a potential physical downlink control channel transmission position with a smaller number and/or indicating the base station to preferentially transmit DCI with a higher aggregation degree;

sending the detection sequence information to the user equipment;

the detection sequence information comprises at least one or a combination of the following:

2. The method of claim 1, further comprising:

sending quantity assistance information to the user equipment.

3. The method according to claim 2, wherein the number assistance information is included in the downlink control information and/or in cyclic redundancy check scrambling information of the downlink control information and/or other information included in the downlink control information.

4. The method of any of claims 1 to 3, further comprising:

and sending the sequence number auxiliary information to the user equipment.

5. The method according to claim 4, wherein the sequence number side information is included in the downlink control information and/or in cyclic redundancy check scrambling information of the downlink control information and/or other information included in the downlink control information.

6. An auxiliary method for detecting a physical downlink control channel, performed by a user equipment, comprising:

receiving detection sequence information for detecting a physical downlink control channel, wherein the detection sequence information is used for indicating an action sequence of user equipment for detecting the physical downlink control channel, the detection sequence information is determined by the base station according to tendency information for transmitting the physical downlink control channel, and the tendency information is used for indicating the base station to preferentially transmit DCI at a potential physical downlink control channel transmission position with a smaller number and/or indicating the base station to preferentially transmit DCI with a higher aggregation degree;

detecting a physical downlink control channel according to the action sequence indicated by the detection sequence information;

7. The method of claim 6, further comprising:

8. The method of claim 7, wherein the receiving the quantity assistance information sent by the base station comprises:

And attempting to descramble the cyclic redundancy check of the received physical downlink control channel, and determining the quantity of auxiliary information according to descrambling information which is descrambled successfully.

9. The method of claim 6, further comprising:

10. The method of claim 9, wherein receiving the sequence number assistance information sent by the base station comprises:

And attempting to descramble the cyclic redundancy check of the received physical downlink control channel, and determining the sequence number auxiliary information according to descrambling information which is descrambled successfully.

11. An auxiliary method for detecting a physical downlink control channel, comprising:

sending quantity assistance information to the user equipment;

the physical downlink control channels are detected according to a detection sequence, the detection sequence is determined by a base station according to tendency information for transmitting the physical downlink control channels, the tendency information is used for indicating the base station to preferentially transmit DCI at a potential physical downlink control channel transmission position with a smaller number, and/or indicating the base station to preferentially transmit DCI with a higher aggregation degree, and the detection sequence information includes at least one of the following information or a combination thereof:

12. The method according to claim 11, wherein the quantity assistance information is included in the downlink control information and/or in cyclic redundancy check scrambling information of the downlink control information and/or other information included in the downlink control information.

13. The method of claim 11, wherein the actual number is a total number of physical downlink control channel messages that the UE needs to detect in all search spaces.

14. The method of claim 11, wherein the actual number comprises a number of physical downlink control channel messages respectively required to be detected by the ue in each search space.

15. An auxiliary method for detecting a physical downlink control channel, comprising:

determining whether the detected physical downlink control channels reach the actual number, and stopping detection if the detected physical downlink control channels reach the actual number;

the physical downlink control channels are detected according to a detection sequence, the detection sequence is determined by the base station according to tendency information for transmitting the physical downlink control channels, the tendency information is used for indicating the base station to preferentially transmit DCI at a potential physical downlink control channel transmission position with a smaller number, and/or indicating the base station to preferentially transmit DCI with a higher aggregation degree, and the detection sequence information includes at least one or a combination of the following information:

16. The method of claim 15, wherein the receiving the quantity assistance information transmitted by the base station comprises:

17. The method of claim 15, wherein the actual number is a total number of physical downlink control channels that the ue needs to detect in all search spaces, and wherein the determining whether the detected physical downlink control channels reach the actual number comprises:

18. The method of claim 15, wherein the actual number comprises a number of physical downlink control channels respectively required to be detected by the ue in each search space, and wherein the determining whether the detected physical downlink control channels reach the actual number comprises:

19. An auxiliary apparatus for detecting a physical downlink control channel, comprising:

the device comprises a tendency determining module, a first transmitting module and a second transmitting module, wherein the tendency determining module is configured to determine tendency information for transmitting a physical downlink control channel, wherein the tendency information is used for instructing a base station to preferentially transmit DCI at a potential physical downlink control channel transmission position with a smaller number, and/or instructing the base station to preferentially transmit DCI with a higher aggregation degree;

an information sending module configured to send the detection order information to the user equipment;

20. The apparatus of claim 19, further comprising:

21. The apparatus according to claim 20, wherein the number assistance information is included in the downlink control information and/or in cyclic redundancy check scrambling information of the downlink control information and/or other information included in the downlink control information.

22. The apparatus of any one of claims 19 to 21, further comprising:

23. The apparatus according to claim 22, wherein the sequence number side information is included in the downlink control information and/or in cyclic redundancy check scrambling information of the downlink control information and/or other information included in the downlink control information.

24. An auxiliary apparatus for detecting a physical downlink control channel, comprising:

an information receiving module, configured to receive detection sequence information for detecting a physical downlink control channel, where the detection sequence information is used to indicate an action sequence for a user equipment to detect the physical downlink control channel, and the detection sequence information is determined by the base station according to trend information for transmitting the physical downlink control channel, where the trend information is used to indicate the base station to preferentially transmit DCI at a potential physical downlink control channel transmission position with a smaller number and/or to indicate the base station to preferentially transmit DCI with a higher aggregation degree;

a channel detection module configured to detect a physical downlink control channel according to an action sequence indicated by the detection sequence information;

25. The apparatus of claim 24, wherein the information receiving module is further configured to receive quantity assistance information sent by a base station, wherein the quantity assistance information is used to indicate an actual number of physical downlink control channels that need to be detected by a user equipment;

26. The apparatus of claim 25, wherein the information receiving module is configured to parse the received downlink control information to determine the amount of auxiliary information; or attempting to descramble a cyclic redundancy check of the received physical downlink control channel; and determining the quantity of auxiliary information according to the descrambling information after successful descrambling.

27. The apparatus of claim 24, wherein the information receiving module is further configured to receive sequence number assistance information sent by a base station, wherein the sequence number assistance information is used to indicate whether the downlink control information detected by the ue is the last downlink control information;

28. The apparatus of claim 27, wherein the information receiving module is further configured to parse a received physical downlink control channel to determine the sequence number assistance information; or attempting to descramble a cyclic redundancy check of the received physical downlink control channel; and determining the auxiliary information of the sequence number according to the descrambling information after successful descrambling.

29. An auxiliary apparatus for detecting a physical downlink control channel, comprising:

an information transmitting module configured to transmit quantity assistance information to the user equipment;

30. The apparatus according to claim 29, wherein the quantity assistance information is included in the downlink control information and/or in cyclic redundancy check scrambling information of the downlink control information and/or other information included in the downlink control information.

31. The apparatus of claim 29, wherein the actual number is a total number of pdcch messages that the ue needs to detect in all search spaces.

32. The apparatus of claim 29, wherein the actual number comprises a number of physical downlink control channel messages respectively required to be detected by the ue in each search space.

33. An auxiliary apparatus for detecting a physical downlink control channel, comprising:

a number detection module configured to determine whether the detected physical downlink control channel reaches the actual number, and if so, stop the detection;

34. The apparatus of claim 33, wherein the information receiving module is configured to parse the received downlink control information to determine the amount of auxiliary information; or attempting to descramble a cyclic redundancy check of the received physical downlink control channel; and determining the quantity of auxiliary information according to the descrambling information after successful descrambling.

35. The apparatus of claim 33, wherein the actual number is a total number of physical downlink control channels that the ue needs to detect in all search spaces, and wherein the number detection module is configured to determine whether a sum of the number of physical downlink control channels detected in each search space reaches the actual number.

36. The apparatus of claim 33, wherein the actual number comprises the number of physical downlink control channels that the ue needs to detect in each search space, and wherein the number detection module is configured to determine to complete detection of any search space when the detected physical downlink control channel in any search space reaches the number of physical downlink control channels that the search space corresponds to and needs to detect, and detect a physical downlink control channel in a next search space until all search spaces are detected.

37. An electronic device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the steps of the method of any of the preceding claims 1 to 18.

38. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any one of the preceding claims 1 to 18.