CN109274463A

CN109274463A - The detection and sending method and equipment of control channel

Info

Publication number: CN109274463A
Application number: CN201811209691.0A
Authority: CN
Inventors: 刘鹍鹏
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-07-30
Filing date: 2013-07-30
Publication date: 2019-01-25
Also published as: CN104584661B; WO2015013894A1; CN104584661A

Abstract

The embodiment of the present invention provides the detection and sending method and equipment of a kind of control channel, the detection method of the control channel, it include: that the region of search of the first control channel is determined according to the corresponding first control channel candidate's number for needing to detect of aggregation level each in the corresponding first aggregation level set of the first control channel resource collection and the first aggregation level set；Control channel is detected in the region of search of first control channel.The embodiment of the present invention realizes user equipment blind examination control channel on CSS, and the network equipment sends control channel on CSS.

Description

Method and equipment for detecting and sending control channel

Technical Field

The present invention relates to communications technologies, and in particular, to a method and a device for detecting and sending a control channel.

Background

In a Long Term Evolution (LTE) system, before a User Equipment (UE) receives or sends service data, it needs to acquire downlink control information configured to the UE by a network device, where the downlink control information is carried by an Enhanced Physical Downlink Control Channel (EPDCCH). For the Enhanced physical downlink Control channel, the network device may further configure an Enhanced physical downlink Control channel resource set for each UE, where each Enhanced physical downlink Control channel resource set includes at least one physical resource block, and each physical resource block includes multiple Enhanced Control Channel Elements (ECCEs).

Furthermore, in LTE, a Common Search Space (CSS) and a UE Specific Search Space (USS) are also partitioned. The CSS refers to an interval to which all UEs need to monitor, and is generally used for transmitting scheduling indication signaling of common control information (system broadcast message, paging message, random access message, and the like). The USS is used for transmitting scheduling indication signaling of uplink and downlink data transmission of a user. In the prior art, a specific implementation manner exists for a blind detection manner of a user equipment on a USS for an enhanced physical control channel, but no specific implementation manner exists for a control channel sent by a network equipment on a CSS and a blind detection manner of the user equipment on the CSS.

Disclosure of Invention

The embodiment of the invention provides a method and equipment for detecting and sending a control channel, which are used for realizing the blind detection of the control channel on a CSS by user equipment and the sending of the control channel on the CSS by network equipment.

In a first aspect, an embodiment of the present invention provides a method for detecting a control channel, including:

determining a search interval of a first control channel according to a first aggregation level set corresponding to a first control channel resource set and the number of first control channel candidates needing to be detected corresponding to each aggregation level in the first aggregation level set;

detecting a control channel within a search interval of the first control channel.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the first aggregation level set includes:

aggregation levels in the second aggregation level set are smaller than a preset threshold; or

Aggregation levels in the second aggregation level set which are larger than a preset threshold;

the preset threshold is obtained according to a broadcast notification of the network device, or is a semi-statically configured threshold, or is a fixedly configured threshold, or is a threshold determined by any one or a combination of the following: a system bandwidth, a location of a set of resources of a first control channel, a size of a set of resources of a first control channel, a location of a set of resources of a second control channel, and a size of a set of resources of a second control channel.

With reference to the first aspect, in a second possible implementation manner of the first aspect, the first aggregation level set includes:

the X aggregation levels with the highest aggregation level in the second aggregation level set; or

The X aggregation levels with the lowest aggregation level in the second aggregation level set;

wherein, X is a positive integer, and X is obtained according to a broadcast notification of a network device, or is a semi-statically configured threshold, or is a fixedly configured threshold, or is determined by any one or a combination of the following: a system bandwidth, a location of a set of resources of a first control channel, a size of a set of resources of a first control channel, a location of a set of resources of a second control channel, and a size of a set of resources of a second control channel.

With reference to the first aspect, in a third possible implementation manner of the first aspect, the first aggregation level set includes:

the aggregation level corresponding to the Y control channel candidates with the lowest aggregation level among all the control channel candidates supported by the second aggregation level set; or

The aggregation level corresponding to the Y control channel candidates with the highest aggregation level in all the control channel candidates supported by the second aggregation level set;

wherein Y is a positive integer, and the value of Y is obtained according to a broadcast notification of a network device, or is a semi-statically configured value, or is a fixedly configured value, or is a value determined by any one or a combination of the following: the system bandwidth, the location of the set of resources of the first control channel, the size of the set of resources of the first control channel, the location of the set of resources of the second control channel, and the size of the set of resources of the second control channel.

With reference to any one of the first to third possible implementation manners of the first aspect, in a fourth possible implementation manner of the first aspect, the second aggregation level set is a set of aggregation levels with a control channel candidate number that is not zero and is supported by the first control channel resource set.

With reference to the first aspect and any one of the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, a sum of the number of first control channel candidates to be detected, which is corresponding to each aggregation level, is smaller than a second preset sum value, or

The sum of the candidate numbers of the first control channels to be detected corresponding to each aggregation level is greater than a second preset sum value, or

The sum of the number of the first control channel candidates to be detected corresponding to each aggregation level is equal to a second preset sum value, or

The sum of the number of the first control channel candidates to be detected and the sum of the number of the second control channel candidates corresponding to each aggregation level meet a preset association condition;

the second preset sum value is obtained according to a broadcast notification of the network device, or is a sum value configured semi-statically by the network device, or is a sum value configured fixedly, or is a sum value determined by any one or a combination of the following: a system bandwidth, a location of a set of resources of a first control channel, a size of a set of resources of a first control channel, a location of a set of resources of a second control channel, and a size of a set of resources of a second control channel.

With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the preset association condition includes:

the sum of the number of the first control channel candidates to be detected is a decreasing function of the sum of the number of the second control channel candidates to be detected; or,

the sum of the number of the second control channel candidates to be detected is a decreasing function of the sum of the number of the first control channel candidates to be detected; or

The sum of the number of the first control channel candidates to be detected is equal to:

or

Wherein floor () represents rounding down, ceil () represents rounding up, H is a third predetermined sum value, U_iThe number of the second control channel candidates which need to be detected for the ith blind detection process is the sum of the numbers of the second control channel candidates, β is a weighting factor of the number of the control channel candidates, G is the sum of the maximum control channel candidates supported by each aggregation level in the first aggregation level set, N is the total number of the second control channel blind detection processes, i is more than or equal to 0 and less than or equal to N, and i and N are integers;

the sum of the number of the first control channel candidates needing to be detected and the sum of the number of the second control channel candidates corresponding to each aggregation level meet a third preset sum value; or the sum of the number of the first control channel candidates needing to be detected corresponding to each aggregation level and the number of the second control channel candidates of the same aggregation level meets a fourth preset sum value;

the third preset sum value and/or the fourth preset sum value are obtained according to a broadcast notification of the network device, or are sum values configured semi-statically, or are sum values configured fixedly, or are sum values determined by any one or a combination of the following: the system bandwidth, the location of the set of resources of the first control channel, the size of the set of resources of the first control channel, the location of the set of resources of the second control channel, and the size of the set of resources of the second control channel.

With reference to the fifth or sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the number of first control channel candidates to be detected satisfies a first condition, where the first condition includes:

according to the sequence of the aggregation levels in the first aggregation level set from low to high, the number of the control channel candidates with the aggregation levels lower than the first control channel candidate with the highest supportable first condition is preferentially met; or

And according to the sequence of the aggregation levels in the first aggregation level set from high to low, the high aggregation level of the first control channel is made to satisfy the maximum supportable number of control channel candidates preferentially.

With reference to the fifth or sixth possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the number of second control channel candidates to be detected satisfies a second condition, where the second condition includes:

according to the sequence of the aggregation levels required to be detected from low to high, the second control channel with the low aggregation level preferentially meets the maximum supportable control channel candidate number; or

According to the sequence of the aggregation levels required to be detected from high to low, the high aggregation level of the second control channel is made to meet the maximum supportable control channel candidate number preferentially;

wherein the total number of the second control channel candidates to be detected is equal toOr

Wherein, floor () tableIndicating rounding-down, ceil () indicating rounding-up, T being a fifth preset sum, D being the sum of the maximum number of control channel candidates supported by the aggregation level of each second control channel, C_jSum of the number of first control channel candidates to be detected for each blind detection process, U_jPresetting the total number of second control channel candidates to be detected for each blind detection process, wherein α is a weighting factor of the number of the control channel candidates, P is the total number of the second control channel blind detection processes, and Q is the total number of the first control channel blind detection processes;

the fifth preset sum is equal to the third preset sum, and the fifth preset sum is obtained according to a broadcast notification of a network device, or is a semi-statically configured sum, or is a fixedly configured sum, or is a sum determined by any one or a combination of the following: the system bandwidth, the location of the set of resources of the first control channel, the size of the set of resources of the first control channel, the location of the set of resources of the second control channel, and the size of the set of resources of the second control channel.

With reference to the fifth or sixth possible implementation manner of the first aspect, in a ninth possible implementation manner of the first aspect, the number of second control channel candidates to be detected satisfies a second condition, where the second condition includes:

the sum of the number of the second control channel candidates to be detected is equal to min (E-F, J), E is a sixth preset sum, F is the sum of the number of the first control channel candidates to be detected, and J is the sum of the maximum number of the control channel candidates supported by the aggregation level of each second control channel;

the sixth preset sum is obtained according to a broadcast notification of the network device, or is a sum configured semi-statically, or is a sum configured fixedly, or is a sum determined by any one or a combination of the following: the system bandwidth, the location of the set of resources of the first control channel, the size of the set of resources of the first control channel, the location of the set of resources of the second control channel, and the size of the set of resources of the second control channel.

With reference to the fifth or sixth possible implementation manner of the first aspect, in a tenth possible implementation manner of the first aspect, the number of second control channel candidates to be detected satisfies a second condition, where the second condition includes:

the number of the second control channel candidates to be detected is equal to min (K-L, M), where K is a seventh preset sum, L is the number of the first control channel candidates to be detected corresponding to the aggregation level of the at least one first control channel, and M is the maximum number of the control channel candidates supported by the aggregation level of the at least one second control channel;

the seventh preset total value is obtained according to a broadcast notification of the network device, or is a semi-statically configured total value, or is a fixedly configured total value, or is a total value determined by any one or a combination of the following: the system bandwidth, the location of the set of resources of the first control channel, the size of the set of resources of the first control channel, the location of the set of resources of the second control channel, and the size of the set of resources of the second control channel.

With reference to the fifth possible implementation manner of the first aspect, in an eleventh possible implementation manner of the first aspect, when the resource set of the first control channel and the resource set of the second control channel have resource overlap, the preset association condition includes:

the aggregation level and/or the number of the control channel candidates of the second control signal to be detected follow the aggregation level and/or the number of the control channel candidates of the first control channel; or,

the aggregation level and/or the number of control channel candidates of the first control channel to be detected follow the aggregation level and/or the number of control channel candidates of the second control channel.

With reference to any one of the first to eleventh possible implementation manners of the first aspect, in a twelfth possible implementation manner of the first aspect, the second control channel is a UE-specific control channel.

With reference to the first aspect and any one of the first to twelfth possible implementation manners of the first aspect, in a thirteenth possible implementation manner of the first aspect, the first control channel is a common control channel.

With reference to the first aspect, in a fourteenth possible implementation manner of the first aspect, the first aggregation level set includes:

repeatedly detecting the aggregation level of the same downlink control information DCI in different time units;

wherein, the aggregation levels for repeatedly detecting the same DCI in different time units are different.

With reference to the fourteenth possible implementation manner of the first aspect, in a fifteenth possible implementation manner of the first aspect, the repeatedly detecting that aggregation levels of the same DCI in different time units are different includes:

according to the time sequence, the control channel candidates with large aggregation levels are repeatedly detected, the control channel candidates with small aggregation levels are repeatedly detected, and the repeated detection times of different aggregation levels can be different or the same; or

According to the time sequence, the control channel candidates with small aggregation level are repeatedly detected, the control channel candidates with large aggregation level are repeatedly detected, and the repeated detection times of different aggregation levels can be different or the same; or

And circularly detecting according to the sequence of the aggregation levels from large to small or from small to large according to the time sequence.

With reference to the fifteenth possible implementation manner of the first aspect, in a sixteenth possible implementation manner of the first aspect, the number of times that the different aggregation levels are repeatedly detected or the detection order of the aggregation levels may be configured by a higher layer, or predefined, or determined by the number of available resource elements REs in each physical resource block pair, or inversely proportional to the aggregation level, or determined by the size of the number of bits included in the format of the DCI, or determined according to a coverage, or determined according to the radio network temporary identity RNTI.

With reference to any one of the fourteenth to the sixteenth possible implementation manners of the first aspect, in a seventeenth possible implementation manner of the first aspect, the time unit may be a subframe, a slot, or a radio frame.

With reference to any one of the fourteenth to the seventeenth possible implementation manners of the first aspect, in an eighteenth possible implementation manner of the first aspect, the first control channel is a UE-specific control channel or a common control channel.

In a second aspect, an embodiment of the present invention provides a method for sending a control channel, including:

determining a search interval of a first control channel according to a first aggregation level set corresponding to a first control channel resource set and the number of first control channel candidates corresponding to aggregation levels in the first aggregation level set;

and transmitting the control channel in the search interval of the first control channel.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the first aggregation level set includes:

wherein, the preset threshold is a semi-statically configured threshold, or a fixedly configured threshold, or a threshold determined by any one or a combination of the following: a system bandwidth, a location of a set of resources of a first control channel, a size of a set of resources of a first control channel, a location of a set of resources of a second control channel, and a size of a set of resources of a second control channel.

With reference to the second aspect, in a second possible implementation manner of the second aspect, the first aggregation level set includes:

wherein, X is a positive integer, and X is a semi-statically configured threshold, or a fixedly configured threshold, or is determined by any one or a combination of the following: a system bandwidth, a location of a set of resources of a first control channel, a size of a set of resources of a first control channel, a location of a set of resources of a second control channel, and a size of a set of resources of a second control channel.

With reference to the second aspect, in a third possible implementation manner of the second aspect, the first aggregation level set includes:

wherein Y is a positive integer, and the value of Y is a semi-statically configured value, or a fixedly configured value, or a value determined by any one or a combination of the following: the system bandwidth, the location of the set of resources of the first control channel, the size of the set of resources of the first control channel, the location of the set of resources of the second control channel, and the size of the set of resources of the second control channel.

With reference to any one of the first to third possible implementation manners of the second aspect, in a fourth possible implementation manner of the second aspect, the second aggregation level set is a set of aggregation levels with a control channel candidate number that is not zero and is supported by the first control channel resource set.

With reference to the second aspect and any one of the first to fourth possible implementation manners of the second aspect, in a fifth possible implementation manner of the second aspect, a sum of the number of the first control channel candidates corresponding to each aggregation level is smaller than a second preset sum value, or

The sum of the candidate numbers of the first control channels corresponding to each aggregation level is greater than a second preset sum value, or

The sum of the number of the first control channel candidates corresponding to each aggregation level is equal to a second preset sum value, or

The sum of the number of the first control channel candidates corresponding to each aggregation level and the sum of the number of the second control channel candidates meet a preset association condition;

wherein the second preset sum value is a sum value of semi-static configuration of the network device, or a sum value of fixed configuration, or a sum value determined by any one or a combination of the following: a system bandwidth, a location of a set of resources of a first control channel, a size of a set of resources of a first control channel, a location of a set of resources of a second control channel, and a size of a set of resources of a second control channel.

With reference to the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner of the second aspect, the preset association condition includes:

the sum of the number of the first control channel candidates is a decreasing function of the sum of the number of the second control channel candidates to be transmitted; or,

the sum of the second control channel candidate numbers is a decreasing function of the sum of the first control channel candidate numbers to be transmitted; or

The sum of the first number of control channel candidates is equal to:

or

Wherein floor () represents rounding down, ceil () represents rounding up, H is a third predetermined sum value, U_iThe total number of second control channel candidates corresponding to the ith downlink control information DCI, β is a weighting factor of the control channel candidates, G is the total number of the maximum control channel candidates supported by each aggregation level in the first aggregation level set, N is the total number of the DCI corresponding to the second control channel, i is greater than or equal to 0 and less than or equal to N, and i and N are integers;

the sum of the number of the first control channel candidates corresponding to each aggregation level and the sum of the number of the second control channel candidates meet a third preset sum value; or the sum of the number of the first control channel candidates corresponding to each aggregation level and the number of the second control channel candidates of the same aggregation level meets a fourth preset sum value;

the third preset sum value and/or the fourth preset sum value is a sum value of a semi-static configuration, or a sum value of a fixed configuration, or a sum value determined by any one or a combination of the following: the system bandwidth, the location of the set of resources of the first control channel, the size of the set of resources of the first control channel, the location of the set of resources of the second control channel, and the size of the set of resources of the second control channel.

With reference to the fifth or sixth possible implementation manner of the second aspect, in a seventh possible implementation manner of the second aspect, the first number of control channel candidates satisfies a first condition, where the first condition includes:

With reference to the fifth or sixth possible implementation manner of the second aspect, in an eighth possible implementation manner of the second aspect, the second number of control channel candidates satisfies a second condition, where the second condition includes:

according to the sequence of the aggregation levels needing to be sent from low to high, the second control channel with the low aggregation level preferentially meets the maximum supportable control channel candidate number; or

According to the sequence of the aggregation levels required to be sent from high to low, the high aggregation level of the second control channel is made to meet the maximum supportable control channel candidate number preferentially;

wherein the sum of the second control channel candidate number is equal toOr

Wherein floor () represents rounding down, ceil () represents rounding up, T is a fifth preset sum, D is a sum of the maximum number of control channel candidates supported by the aggregation level of each second control channel, C_jIs the sum of the number of first control channel candidates corresponding to the jth DCI, U_jPresetting the total number of second control channel candidates corresponding to jth DCI, α is a weighting factor of the number of the control channel candidates, P is the total number of the DCI corresponding to the second control channel, and Q is the total number of the DCI corresponding to the first control channel;

the fifth preset sum is equal to the third preset sum, and the fifth preset sum is a sum of semi-static configuration, or a sum of fixed configuration, or a sum determined by any one or a combination of the following: the system bandwidth, the location of the set of resources of the first control channel, the size of the set of resources of the first control channel, the location of the set of resources of the second control channel, and the size of the set of resources of the second control channel.

With reference to the fifth or sixth possible implementation manner of the second aspect, in a ninth possible implementation manner of the second aspect, the second number of control channel candidates satisfies a second condition, where the second condition includes:

according to the sequence of the aggregation levels from low to high, the second control channel with the low aggregation level preferentially meets the maximum supportable number of control channel candidates; or

According to the sequence of the aggregation levels from high to low, the high aggregation level of the second control channel is made to meet the maximum supportable control channel candidate number preferentially;

wherein, the sum of the second control channel candidate numbers is equal to min (E-F, J), E is a sixth preset sum, F is the sum of the first control channel candidate numbers, and J is the sum of the maximum control channel candidate numbers supported by the aggregation levels of the second control channels;

the sixth preset sum is a sum of semi-static configurations, or a sum of fixed configurations, or a sum determined by any one or a combination of the following: the system bandwidth, the location of the set of resources of the first control channel, the size of the set of resources of the first control channel, the location of the set of resources of the second control channel, and the size of the set of resources of the second control channel.

With reference to the fifth or sixth possible implementation manner of the second aspect, in a tenth possible implementation manner of the second aspect, the second number of control channel candidates satisfies a second condition, where the second condition includes:

the number of the second control channel candidates is equal to min (K-L, M), where K is a seventh preset sum, L is the number of the first control channel candidates to be sent corresponding to the aggregation level of the at least one first control channel, and M is the maximum number of the control channel candidates supported by the aggregation level of the at least one second control channel;

the seventh preset sum is a sum of semi-static configurations, or a sum of fixed configurations, or a sum determined by any one or a combination of the following: the system bandwidth, the location of the set of resources of the first control channel, the size of the set of resources of the first control channel, the location of the set of resources of the second control channel, and the size of the set of resources of the second control channel.

With reference to the fifth possible implementation manner of the second aspect, in an eleventh possible implementation manner of the second aspect, when there is resource overlap between the resource set of the first control channel and the resource set of the second control channel, the presetting the association condition includes:

the aggregation level and/or the number of the control channel candidates of the second control signal to be transmitted follow the aggregation level and/or the number of the control channel candidates of the first control channel; or,

the aggregation level and/or the number of control channel candidates of the first control channel to be transmitted follow the aggregation level and/or the number of control channel candidates of the second control channel.

With reference to any one of the first to eleventh possible implementation manners of the second aspect, in a twelfth possible implementation manner of the second aspect, the second control channel is a UE-specific control channel.

With reference to the second aspect and any one of the first to twelfth possible implementation manners of the second aspect, in a thirteenth possible implementation manner of the second aspect, the first control channel is a common control channel.

With reference to the second aspect, in a fourteenth possible implementation manner of the second aspect, the first aggregation level set includes:

repeatedly sending the aggregation level of the same downlink control information DCI in different time units;

wherein, the aggregation levels for repeatedly transmitting the same DCI in different time units are different.

With reference to the fourteenth possible implementation manner of the second aspect, in a fifteenth possible implementation manner of the second aspect, the repeatedly sending the same DCI in different time units at different aggregation levels is different, and the repeatedly sending the same DCI includes:

according to the time sequence, the control channel candidates with large aggregation level are repeatedly sent, and then the control channel candidates with small aggregation level are repeatedly sent, and the repeated sending times of different aggregation levels can be different or the same; or

According to the time sequence, the control channel candidates with small aggregation level are repeatedly sent, the control channel candidates with large aggregation level are repeatedly sent, and the repeated sending times of different aggregation levels can be different or the same; or

And circularly transmitting according to the sequence of the aggregation levels from large to small or from small to large according to the time sequence.

With reference to the fifteenth possible implementation manner of the second aspect, in a sixteenth possible implementation manner of the second aspect, the number of times that the different aggregation levels are repeatedly transmitted or the transmission order of the aggregation levels may be configured by a higher layer, or predefined, or determined by the number of available resource elements REs in each physical resource block pair, or inversely proportional to the aggregation level, or determined by the size of the number of bits included in the format of the DCI, or determined according to a coverage, or determined according to the radio network temporary identity RNTI.

With reference to any one of the fourteenth to the sixteenth possible implementation manners of the second aspect, in a seventeenth possible implementation manner of the second aspect, the time unit may be a subframe, a slot, or a radio frame.

With reference to any one of the fourteenth to the seventeenth possible implementation manners of the second aspect, in an eighteenth possible implementation manner of the second aspect, the first control channel is a UE-specific control channel or a common control channel.

In a third aspect, an embodiment of the present invention provides an information processing method, including:

the user equipment starts to repeatedly send or repeatedly detect the first information at different moments;

the user equipment starts to repeatedly send or repeatedly detect first information at different moments, wherein the times or modulation coding modes of the first information are different, and the first information comprises at least one of a Physical Downlink Shared Channel (PDSCH), a Physical Broadcast Channel (PBCH), a physical control format indicator channel, a physical hybrid automatic repeat request indicator channel (PHICH), a Physical Multicast Channel (PMCH), a Physical Random Access Channel (PRACH), a Physical Uplink Control Channel (PUCCH) and a Physical Uplink Shared Channel (PUSCH).

With reference to the third aspect, in a first possible implementation manner of the third aspect, when the ue fails to detect the second information at the different time, the ue starts to repeatedly send or repeatedly detect the first information for different times at the different time; or

When the user equipment fails to detect the second information at different moments, the user equipment starts to repeatedly send or repeatedly detect the first information at different moments in different modulation and coding modes;

the second information is different from the first information, and the second information includes at least one of a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, a physical broadcast channel PBCH, a physical control format indicator channel PCFICH, a physical hybrid automatic repeat request indicator channel, a physical multicast channel PMCH, a physical random access channel PRACH, a physical uplink control channel PUCCH, and a physical uplink shared channel PUSCH.

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the more times that the user equipment fails to detect the second information at the different time, the more times that the user equipment starts to repeatedly transmit or repeatedly detect the first information at the different time; or

The more times that the user equipment fails to detect the second information at different time, the lower the modulation and coding mode of the user equipment starting to repeatedly send or repeatedly detect the first information at different time.

With reference to the first or second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, when the user equipment fails to detect the second information at different time, the number of times that the user equipment starts to repeatedly transmit or repeatedly detect the first information at the different time is configured by a higher layer signaling, or is predefined, or is determined by a radio network temporary identity RNTI; or

When the user equipment fails to detect the second information at different time, the modulation and coding mode of the user equipment starting to repeatedly send or repeatedly detect the first information at different time is configured through high-level signaling, or is predefined, or is determined by the Radio Network Temporary Identifier (RNTI).

In a fourth aspect, an embodiment of the present invention provides an information processing method, including:

the network equipment starts to repeatedly send or repeatedly detect the first information at different moments;

the network equipment starts to repeatedly send or repeatedly detect first information at different moments, wherein the times or modulation coding modes of the first information are different, and the first information comprises at least one of a Physical Downlink Shared Channel (PDSCH), a Physical Broadcast Channel (PBCH), a physical control format indicator channel, a physical hybrid automatic repeat request indicator channel (PHICH), a Physical Multicast Channel (PMCH), a Physical Random Access Channel (PRACH), a Physical Uplink Control Channel (PUCCH) and a Physical Uplink Shared Channel (PUSCH).

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, when the network device fails to detect the second information at the different time, the network device starts to repeatedly send or repeatedly detect the first information for different times at the different time; or

When the network equipment fails to detect the second information at different moments, the network equipment starts to repeatedly send or repeatedly detect the first information at different moments in different modulation and coding modes;

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the more times that the network device fails to detect the second information at the different time, the more times that the network device starts to repeatedly send or repeatedly detect the first information at the different time; or

The more times that the network device fails to detect the second information at the different time, the lower the modulation and coding scheme of the network device that starts to repeatedly transmit or repeatedly detect the first information at the different time.

With reference to the first or second possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, when the network device fails to detect the second information at different times, the number of times that the network device starts to repeatedly transmit or repeatedly detect the first information at the different times is configured by a higher layer signaling, or is predefined, or is determined by the radio network temporary identity RNTI; or

When the network equipment fails to detect the second information at different moments, the network equipment starts to repeatedly send or repeatedly detect the modulation coding mode of the first information at the different moments through high-level signaling configuration, or is predefined, or is determined by a Radio Network Temporary Identifier (RNTI).

In a fifth aspect, an embodiment of the present invention provides a user equipment, including:

a determining module, configured to determine a search interval of a first control channel according to a first aggregation level set corresponding to a first control channel resource set and a number of first control channel candidates to be detected corresponding to each aggregation level in the first aggregation level set;

a search module configured to detect a control channel within a search interval of the first control channel.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the first aggregation level set includes:

With reference to the fifth aspect, in a second possible implementation manner of the fifth aspect, the first aggregation level set includes:

With reference to the fifth aspect, in a third possible implementation manner of the fifth aspect, the first aggregation level set includes:

With reference to any one of the first to third possible implementation manners of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the second aggregation level set is a set of aggregation levels with a control channel candidate number that is not zero and is supported by the first control channel resource set.

With reference to the fifth aspect and any one of the first to fourth possible implementation manners of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, a sum of the number of first control channel candidates to be detected corresponding to each aggregation level is smaller than a second preset sum value, or

With reference to the fifth possible implementation manner of the fifth aspect, in a sixth possible implementation manner of the fifth aspect, the preset association condition includes:

or

With reference to the fifth possible implementation manner or the sixth possible implementation manner of the fifth aspect, in a seventh possible implementation manner of the fifth aspect, the number of first control channel candidates to be detected satisfies a first condition, where the first condition includes:

With reference to the fifth possible implementation manner or the sixth possible implementation manner of the fifth aspect, in an eighth possible implementation manner of the fifth aspect, the number of second control channel candidates to be detected satisfies a second condition, where the second condition includes:

Wherein floor () represents rounding down, ceil () represents rounding up, T is a fifth preset sum, D is a sum of the maximum number of control channel candidates supported by the aggregation level of each second control channel, C_jSum of the number of first control channel candidates to be detected for each blind detection process, U_jPresetting the total number of second control channel candidates to be detected for each blind detection process, α being the weighting factor of the number of control channel candidates, P being the total number of the blind detection processes of the second control channel, Q being the blind detection progress of the first control channelThe total number of passes;

With reference to the fifth possible implementation manner or the sixth possible implementation manner of the fifth aspect, in a ninth possible implementation manner of the fifth aspect, the number of second control channel candidates to be detected satisfies a second condition, where the second condition includes:

With reference to the fifth possible implementation manner or the sixth possible implementation manner of the fifth aspect, in a tenth possible implementation manner of the fifth aspect, the number of second control channel candidates to be detected satisfies a second condition, where the second condition includes:

With reference to the fifth possible implementation manner of the fifth aspect, in an eleventh possible implementation manner of the fifth aspect, when there is resource overlap between the resource set of the first control channel and the resource set of the second control channel, the presetting the association condition includes:

With reference to any one of the first to eleventh possible implementation manners of the fifth aspect, in a twelfth possible implementation manner of the fifth aspect, the second control channel is a UE-specific control channel.

With reference to the fifth aspect and any one of the first to twelfth possible implementation manners of the fifth aspect, in a thirteenth possible implementation manner of the fifth aspect, the first control channel is a common control channel.

With reference to the fifth aspect, in a fourteenth possible implementation manner of the fifth aspect, the first aggregation level set includes:

With reference to the fourteenth possible implementation manner of the fifth aspect, in a fifteenth possible implementation manner of the fifth aspect, the repeatedly detecting that aggregation levels of the same DCI in different time units are different includes:

With reference to the fifteenth possible implementation manner of the fifth aspect, in a sixteenth possible implementation manner of the fifth aspect, the number of times that the different aggregation levels are repeatedly detected or the detection order of the aggregation levels may be configured by a higher layer, or predefined, or determined by the number of available resource elements RE in each physical resource block pair, or inversely proportional to the aggregation level, or determined by the size of the number of bits included in the format of the DCI, or determined according to a coverage, or determined according to the radio network temporary identity RNTI.

With reference to any one of the fourteenth to the sixteenth possible implementation manners of the fifth aspect, in a seventeenth possible implementation manner of the fifth aspect, the time unit may be a subframe, a slot, or a radio frame.

With reference to any one of the fourteenth to the seventeenth possible implementation manners of the fifth aspect, in an eighteenth possible implementation manner of the fifth aspect, the first control channel is a UE-specific control channel or a common control channel.

In a sixth aspect, an embodiment of the present invention provides a network device, including:

a determining module, configured to determine a search interval of a first control channel according to a first aggregation level set corresponding to a first control channel resource set and a first control channel candidate number corresponding to an aggregation level in the first aggregation level set;

a sending module, configured to send a control channel in a search interval of the first control channel.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the first aggregation level set includes:

With reference to the sixth aspect, in a second possible implementation manner of the sixth aspect, the first aggregation level set includes:

With reference to the sixth aspect, in a third possible implementation manner of the sixth aspect, the first aggregation level set includes:

With reference to any one of the first to third possible implementation manners of the sixth aspect, in a fourth possible implementation manner of the sixth aspect, the second aggregation level set is a set of aggregation levels whose number of control channel candidates supported by the first control channel resource set is not zero.

With reference to the sixth aspect or any one of the first to the fourth possible implementation manners of the sixth aspect, in a fifth possible implementation manner of the sixth aspect, a sum of the number of the first control channel candidates corresponding to each aggregation level is smaller than a second preset sum value, or

With reference to the fifth possible implementation manner of the sixth aspect, in a sixth possible implementation manner of the sixth aspect, the preset association condition includes:

The sum of the first number of control channel candidates is equal to:

or

With reference to the fifth or sixth possible implementation manner of the sixth aspect, in a seventh possible implementation manner of the sixth aspect, the first number of control channel candidates satisfies a first condition, where the first condition includes:

With reference to the fifth or sixth possible implementation manner of the sixth aspect, in an eighth possible implementation manner of the sixth aspect, the second number of control channel candidates satisfies a second condition, where the second condition includes:

wherein the sum of the second control channel candidate number is equal toOr

With reference to the fifth or sixth possible implementation manner of the sixth aspect, in a ninth possible implementation manner of the sixth aspect, the second number of control channel candidates satisfies a second condition, where the second condition includes:

With reference to the fifth or sixth possible implementation manner of the sixth aspect, in a tenth possible implementation manner of the sixth aspect, the second number of control channel candidates satisfies a second condition, where the second condition includes:

With reference to the fifth possible implementation manner of the sixth aspect, in an eleventh possible implementation manner of the sixth aspect, when there is resource overlap between the resource set of the first control channel and the resource set of the second control channel, the preset association condition includes:

With reference to any one of the first to eleventh possible implementation manners of the sixth aspect, in a twelfth possible implementation manner of the sixth aspect, the second control channel is a UE-specific control channel.

With reference to the sixth aspect and any one of the first to the twelfth possible implementation manners of the sixth aspect, in a thirteenth possible implementation manner of the sixth aspect, the first control channel is a common control channel.

With reference to the sixth aspect, in a fourteenth possible implementation manner of the sixth aspect, the first aggregation level set includes:

With reference to the fourteenth possible implementation manner of the sixth aspect, in a fifteenth possible implementation manner of the sixth aspect, the repeatedly transmitting the same DCI in different time units has different aggregation levels, and the repeatedly transmitting the same DCI in different time units includes:

With reference to the fifteenth possible implementation manner of the sixth aspect, in a sixteenth possible implementation manner of the sixth aspect, the number of times that the different aggregation levels are repeatedly transmitted or the transmission order of the aggregation levels may be configured by a higher layer, or predefined, or determined by the number of available resource elements RE in each physical resource block pair, or inversely proportional to the aggregation level, or determined by the size of the number of bits included in the format of the DCI, or determined according to a coverage, or determined according to the radio network temporary identity RNTI.

With reference to any one of the fourteenth to the sixteenth possible implementation manners of the sixth aspect, in a seventeenth possible implementation manner of the sixth aspect, the time unit may be a subframe, a slot, or a radio frame.

With reference to any one of the fourteenth to the seventeenth possible implementation manners of the sixth aspect, in an eighteenth possible implementation manner of the sixth aspect, the first control channel is a UE-specific control channel or a common control channel.

In a seventh aspect, an embodiment of the present invention provides a user equipment, including:

the processing module is used for starting to repeatedly send or repeatedly detect the first information at different moments;

the processing module starts to repeatedly send or repeatedly detect first information at different moments, wherein the times or modulation coding modes of the first information are different, and the first information comprises at least one of a Physical Downlink Shared Channel (PDSCH), a Physical Broadcast Channel (PBCH), a physical control format indicator channel, a physical hybrid automatic repeat request indicator channel (PHICH), a Physical Multicast Channel (PMCH), a Physical Random Access Channel (PRACH), a Physical Uplink Control Channel (PUCCH) and a Physical Uplink Shared Channel (PUSCH).

With reference to the seventh aspect, in a first possible implementation manner of the seventh aspect, when the processing module fails to detect the second information at the different time, the processing module starts to repeatedly send or repeatedly detect the first information at the different time for different times; or

When the processing module fails to detect the second information at different moments, the processing module starts to repeatedly send or repeatedly detect the first information at different moments in different modulation and coding modes;

With reference to the first possible implementation manner of the seventh aspect, in a second possible implementation manner of the seventh aspect, the more times that the processing module fails to detect the second information at the different time, the more times that the processing module starts to repeatedly send or repeatedly detect the first information at the different time; or

The more times that the processing module fails to detect the second information at different times, the lower the modulation and coding mode of the processing module starting to repeatedly send or repeatedly detect the first information at different times.

With reference to the first or second possible implementation manner of the seventh aspect, in a third possible implementation manner of the seventh aspect, when the processing module fails to detect the second information at different times, the number of times that the processing module starts to repeatedly transmit or repeatedly detect the first information at the different times is configured by a higher layer signaling, or is predefined, or is determined by the radio network temporary identity RNTI; or

When the processing module fails to detect the second information at different time, the processing module starts to repeatedly send or repeatedly detect the modulation coding mode of the first information at different time through high-level signaling configuration, or is predefined, or is determined by the Radio Network Temporary Identifier (RNTI).

In an eighth aspect, an embodiment of the present invention provides a network device, including:

With reference to the eighth aspect, in a first possible implementation manner of the eighth aspect, when the processing module fails to detect the second information at the different time, the processing module starts to repeatedly send or repeatedly detect the first information for different times at the different time; or

With reference to the first possible implementation manner of the eighth aspect, in a second possible implementation manner of the eighth aspect, the more times that the processing module fails to detect the second information at the different time, the more times that the processing module starts to repeatedly send or repeatedly detect the first information at the different time; or

With reference to the first or second possible implementation manner of the eighth aspect, in a third possible implementation manner of the eighth aspect, when the processing module fails to detect the second information at different times, the number of times that the processing module starts to repeatedly transmit or repeatedly detect the first information at the different times is configured by a higher layer signaling, or is predefined, or is determined by the radio network temporary identity RNTI; or

In a ninth aspect, an embodiment of the present invention provides a user equipment, including: a processor and a memory, wherein the memory stores execution instructions, and when the user equipment runs, the processor communicates with the memory, and the processor executes the execution instructions to enable the user equipment to execute any one of the possible implementation manners of the first aspect and the first to eighteenth aspects.

In a tenth aspect, an embodiment of the present invention provides a network device, including: a processor and a memory, wherein the memory stores execution instructions, and when the network device runs, the processor communicates with the memory, and the processor executes the execution instructions to enable the network device to execute any one of the possible implementation manners of the second aspect and the first to the eighteenth aspects.

In an eleventh aspect, an embodiment of the present invention provides a user equipment, including: a processor and a memory, wherein the memory stores execution instructions, and when the user equipment runs, the processor communicates with the memory, and the processor executes the execution instructions to enable the user equipment to execute any one of the possible implementation manners of the third aspect and the first to third aspects.

In a twelfth aspect, an embodiment of the present invention provides a network device, including: a processor and a memory, wherein the memory stores execution instructions, and when the network device runs, the processor communicates with the memory, and the processor executes the execution instructions to enable the network device to execute any one of the possible implementation manners of the fourth aspect and the first to the third aspects.

The detection method determines a search interval of a first control channel according to a first aggregation level set corresponding to a first control channel resource set and the number of first control channel candidates needing to be detected corresponding to aggregation levels in the first aggregation level set; and detecting the control channel in the search interval of the first control channel, and providing a specific implementation mode for blind detection of the user equipment on the CSS.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a flowchart illustrating a first embodiment of a method for detecting a control channel according to the present invention;

fig. 2 is a flowchart illustrating a first method for transmitting a control channel according to a first embodiment of the present invention;

FIG. 3 is a diagram illustrating allocation of control channel candidates according to the present invention;

FIG. 4 is a diagram illustrating a first rule for control channel mapping according to the present invention;

FIG. 5 is a diagram illustrating a second rule for control channel mapping according to the present invention;

FIG. 6 is a diagram illustrating a third rule for control channel mapping according to the present invention;

FIG. 7 is a diagram illustrating a fourth rule for control channel mapping according to the present invention;

fig. 8 is a schematic structural diagram of a ue according to a first embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a network device according to a first embodiment of the present invention;

fig. 10 is a schematic structural diagram of a second ue embodiment according to the present invention;

fig. 11 is a schematic structural diagram of a second network device according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

Fig. 1 is a flowchart illustrating a method for detecting a control channel according to a first embodiment of the present invention. The execution subject of this implementation is a user device, which may be implemented by software and/or hardware. As shown in fig. 1, a method for detecting a control channel according to an embodiment of the present invention includes:

step 101, determining a search interval of a first control channel according to a first aggregation level set corresponding to a first control channel resource set and the number of first control channel candidates needing to be detected corresponding to each aggregation level in the first aggregation level set;

step 102, detecting the control channel in the search interval of the first control channel.

The present embodiment will describe the blind detection manner of the CSS by the user equipment in detail. In step 101, the UE may determine a search interval of a first control channel according to a first aggregation level set corresponding to a first control channel resource set and a number of first control channel candidates to be detected corresponding to each aggregation level in the first aggregation level set.

The first control channel resource set may specifically be a physical resource block set configured by the network device according to the common search interval. The network device may be an evolved base station, a micro base station, a macro base station, or a relay device. The set of Physical Resource blocks may include two Physical Resource Blocks (PRBs), four PRBs, or eight PRBs or other number of PRBs. One PRB includes 4 ECCEs or 2 ECCEs. The number of physical resource blocks is different, and the number of control channel candidates supported by the aggregation level is different, and this embodiment takes that each PRB includes 4 ECCEs as an example, which may be specifically shown in table 1A and table 1B.

TABLE 1A

TABLE 1B

In this embodiment, when blind detection is performed on the CSS, the number of control channel candidates supported by each aggregation level may be determined according to the existing USS, that is, as shown in table 1A; meanwhile, when blind detection is performed on the CSS, the maximum supportable number of control channel candidates may also be satisfied for each aggregation level, as shown in table 1B. Wherein N is_RBIt represents the number of PRB pairs in the physical resource block set, and L represents the aggregation level, and as can be seen from tables 1A and 1B, different physical resource block sets correspond to different aggregation levels and control channel candidate numbers.

The first control channel resource set corresponds to the first aggregation level set, which means that all aggregation levels in the first control channel resource set may become aggregation levels in the first aggregation level set, and the aggregation levels include an aggregation level in which the number of supported control channel candidates is 0 and an aggregation level in which the number of supported control channel candidates is not 0.

The first aggregation level set is a set consisting of one or more aggregation levels corresponding to the first control channel candidate sum to be detected. For example, in table 1A, when the sum of the first control channel candidates to be detected is 5, the aggregation levels corresponding to the first control channel candidates may be aggregation levels 2 and 4, and the first aggregation level set is a set consisting of aggregation level 2 and aggregation level 4.

Correspondingly, the number of the first control channel candidates to be detected corresponding to each aggregation level in the first aggregation level set is the number of the control channel candidates to be detected corresponding to each of one or more aggregation levels in the first aggregation level set. For example, the first aggregation level set includes an aggregation level 2 and an aggregation level 4, a value range of the number of first control channel candidates to be detected corresponding to the aggregation level 2 may be 0 to 8, and a value range of the number of first control channel candidates to be detected corresponding to the aggregation level 4 may be 0 to 4.

Therefore, the user equipment may determine the search interval of the first control channel according to the first aggregation level set corresponding to the first control channel resource set and the number of first control channel candidates to be detected corresponding to each aggregation level in the first aggregation level set.

In step 102, the user equipment may detect a control channel within a search interval of a first control channel. Those skilled in the art, accordingly, the network device transmits the control channel in the first control channel search interval.

In the method for detecting a control channel provided in this embodiment, a search interval of a first control channel is determined according to a first aggregation level set corresponding to a first control channel resource set and a number of first control channel candidates to be detected corresponding to an aggregation level in the first aggregation level set; and detecting the control channel in the search interval of the first control channel, and providing a specific implementation mode for blind detection of the user equipment on the CSS.

Fig. 2 is a flowchart illustrating a first method for transmitting a control channel according to an embodiment of the present invention. The execution subject of this implementation is a network device, which may be implemented by software and/or hardware. As shown in fig. 2, a method for transmitting a control channel according to an embodiment of the present invention includes:

step 201, determining a search interval of a first control channel according to a first aggregation level set corresponding to a first control channel resource set and a number of first control channel candidates to be detected corresponding to aggregation levels in the first aggregation level set;

step 202, sending a control channel in the search interval of the first control channel.

In this embodiment, the network device may be an evolved base station, a micro base station, a macro base station, or a relay device. In step 201, the network device determines the first control channel search interval in the same manner as the user equipment. In step 202, the network device transmits a control channel in a first control channel search interval. The embodiment provides a specific implementation mode for the network equipment to send the channel on the CSS.

On the basis of the embodiments in fig. 1 and fig. 2, in the sending method of the control channel provided in this embodiment, the network device determines a search interval of the first control channel according to the first aggregation level set corresponding to the first control channel resource set and the number of first control channel candidates to be detected corresponding to the aggregation level in the first aggregation level set, and sends the control channel in the search interval of the first control channel, so that a specific implementation manner is provided for the network device to send the control channel on the CSS.

In this embodiment, the aggregation level set with the number of control channel candidates supported by the first control channel resource set being different from zero is the second aggregation level set. Taking NRB as an example 2, since the number of control channel candidates supported by aggregation levels 16 and 32 is zero, the aggregation level set composed of aggregation levels 2, 4, and 8 is the second aggregation level set.

In a specific implementation, the first aggregation level set includes the following possible implementations. In particular, in the following implementations, tables 2A-8A are implemented based on table 1A and tables 2B-8B are implemented based on table 1B.

One possible implementation, the first set of aggregation levels, includes:

a set of aggregation levels in the second set of aggregation levels that is less than a preset threshold. In a specific implementation process, a set of aggregation levels smaller than a preset threshold in the second aggregation level set may be determined according to a preset arrangement order, specifically, the preset arrangement order may be a low-to-high arrangement order, or a high-to-low arrangement order, and when the preset threshold is specifically an aggregation level 8, the set of aggregation levels smaller than the preset threshold may be as shown in table 2A or table 2B.

TABLE 2A

TABLE 2B

In table 2A or table 2B, aggregation levels for which the number of control channel candidates is not 0 constitute a first aggregation level set.

Or, the aggregation level in the second aggregation level set is larger than a preset threshold. In a specific implementation process, a set of aggregation levels greater than a preset threshold in the second aggregation level set may be determined according to a preset ranking order. Specifically, the preset permutation order may be a permutation order from low to high, or may be a permutation order from high to low, and when the preset threshold is specifically the aggregation level 4, the set of aggregation levels greater than the preset threshold may be as shown in table 3A or table 3B.

TABLE 3A

TABLE 3B

In table 3A or table 3B, the aggregation level set in which the number of control channel candidates is not 0 is the first aggregation level set.

The preset threshold is obtained according to a broadcast notification of the network device, or is a semi-statically configured threshold, or is a fixedly configured threshold, or is a threshold determined by any one or a combination of the following: the system bandwidth, the location of the set of resources of the first control channel, the size of the set of resources of the first control channel, the location of the set of resources of the second control channel, and the size of the set of resources of the second control channel.

In another possible implementation, the first aggregation level set includes: the X aggregation levels with the highest aggregation level in the second aggregation level set. Specifically, the highest X aggregation levels in the second aggregation level set may be determined in an order of arrangement from high to low. In a specific implementation, taking X as 2 as an example, the highest X aggregation levels may be as shown in table 4A or table 4B.

TABLE 4A

TABLE 4B

In table 5A or table 5B, the aggregation level set in which the number of control channel candidates is not 0 is the first aggregation level set.

Alternatively, the first set of aggregation levels comprises: the X aggregation levels with the lowest aggregation level in the second aggregation level set. Specifically, the lowest X aggregation levels in the second aggregation level set may be determined in an order from low to high, and in a specific implementation process, taking X as 2 as an example, the lowest X aggregation levels may be as shown in table 5A or table 5B.

TABLE 5A

TABLE 5B

In yet another possible implementation, the first aggregation level set includes: and the aggregation level corresponding to the Y control channel candidates with the lowest aggregation level in all the control channel candidates supported by the second aggregation level set. I.e., the Y control channel candidates, which correspond to the lowest aggregation level. For example, Y is 7, N_RBAt 2, the corresponding lowest aggregation levels are 2, 4, and 8. See table 6A or table 6B for others.

Expressed another way, the second set of aggregation levels is a set of aggregation levels in order from low to high such that a low aggregation level preferentially satisfies the largest supportable number of control channel candidates. In a specific implementation process, the sum of the numbers of the control channel candidates detected by each aggregation level in the first aggregation level set satisfies a first preset sum value, for example, when the first preset sum value is 7, the set of aggregation levels with low aggregation levels preferentially satisfying the maximum supportable number of the control channel candidates is shown in table 6A or table 6B.

TABLE 6A

TABLE 6B

In table 6A or table 6B, the aggregation level set in which the number of control channel candidates is not 0 is the first aggregation level set.

Or, among all the control channel candidates supported by the second aggregation level set, the aggregation level corresponding to the Y control channel candidates with the highest aggregation level. I.e., the Y control channel candidates, which correspond to the highest aggregation level. For example, Y is 7, N_RBAt 2, the corresponding highest aggregation levels are 8, 4, 2. See table 6A or table 6B for others.

Expressed another way, the second aggregation level set is a set of aggregation levels in order from high to low, such that a high aggregation level preferentially satisfies the largest supportable number of control channel candidates. In a specific implementation process, the sum of the numbers of the control channel candidates detected by each aggregation level in the first aggregation level set satisfies a first preset sum value, for example, when the first preset sum value is 6, the set of aggregation levels with the high aggregation level preferentially satisfying the maximum supportable number of the control channel candidates is shown in table 7A or table 7B.

TABLE 7A

TABLE 7B

In table 7A or 7B, the set of aggregation levels whose number of control channel candidates is not 0 is the first aggregation level set.

The first preset sum value is obtained according to a broadcast notification of the network device, or is a sum value configured semi-statically, or is a sum value configured fixedly, or is a sum value determined by any one or a combination of the following: the system bandwidth, the location of the set of resources of the first control channel, the size of the set of resources of the first control channel, the location of the set of resources of the second control channel, and the size of the set of resources of the second control channel.

In this embodiment, the sum of the number of the first control channel candidates to be detected corresponding to each aggregation level is smaller than a second preset sum value, or the sum of the number of the first control channel candidates to be detected corresponding to each aggregation level is greater than the second preset sum value, or the sum of the number of the first control channel candidates to be detected corresponding to each aggregation level is equal to the second preset sum value.

In a specific implementation process, for example, when the second preset total value is 6, under a specific physical resource block set, the total of the number of first control channel candidates to be detected corresponding to each aggregation level is equal to 6, or greater than 6, or less than 6. Taking 6 as an example, the total number of the first control channel candidates may be obtained in an order from high to low of the aggregation level, or from low to high, and is equal to 6. Those skilled in the art will appreciate that each aggregation level may or may not satisfy the maximum supportable number of control channel candidates. Specifically, the results are shown in tables 8A and 8B.

TABLE 8A

TABLE 8B

In tables 8A and 8B, the sum of the first control channel candidate numbers at each aggregation level where the control channel candidate number is not 0 is the sum of the first control channel candidate numbers to be detected.

Or the sum of the number of the first control channel candidates to be detected and the sum of the number of the second control channel candidates corresponding to each aggregation level satisfy a preset association condition.

The sum of the number of the first control channel candidates to be detected may be the sum of the number of the CSS control channel candidates to be detected; the sum of the number of the second control channel candidates to be detected may be the sum of the number of the USS control channel candidates to be detected.

In one possible implementation manner, the preset association condition may include the following possible situations, and one situation may be:

the sum of the number of first control channel candidates to be detected is a decreasing function of the sum of the number of second control channel candidates to be detected. Alternatively, the sum of the number of second control channel candidates to be detected is a decreasing function of the sum of the number of first control channel candidates to be detected.

In a specific application process, in Release 10 (Release 10, abbreviated as R10) of the LTE system, the number of control channel candidates of the CSS of the PDCCH is 4 at aggregation level 4 and 2 at aggregation level 8. Those skilled in the art will understand that the number of control channel candidates corresponds to the number of blind detections, and thus, within the CSS interval, the number of blind detections for one DCI is 6. The number of control channel candidates for the USS of the PDCCH is 6 at aggregation level 1, 6 at aggregation level 2, 2 at aggregation level 4, and 2 at aggregation level 8 (table 9). Therefore, in the USS interval, the number of blind detections is 6+6+2+2 — 16 for one DCI. When the CSS needs to detect two blind detection processes, for the DCI format (0/1a/3/3a), the bits included in the blind detection process are the same, so that one blind detection process is uniformly performed, which is called blind detection process 1, and the blind detection process is 6 blind detections, and for the DCI format (1C), since the bits included in the blind detection process are different from those of the DCI format (0/1a/3/3a), another blind detection process is required, which is still 6 blind detections, and which is called blind detection process 2. For the USS region, there are also cases where multiple blind detection processes are performed, for example, for DCI format (0/1a), a process of performing one blind detection is required, which is called blind detection process 1, and total 6+6+2+2 is 16 blind detections, and for DCI format (1/1B/1D/2/2a/2B/2C/2D), a process of performing one blind detection is also required, which is called blind detection process 2, and total 6+6+2+2 is 16 blind detections, and for cross-carrier scheduling, because control channels of other carriers are detected, there are also blind detection process 3 and blind detection process 4, each process is maximum 16 blind detections. If cross-carrier scheduling is not considered, the total maximum number of blind detections for CSS and USS is 6 × 2+16 × 2 — 44 times.

TABLE 9

The control channel candidates of the USS of the EPDCCH are defined in R11, where the control channel candidates of the USS in one configuration can be determined as shown in tables 10A and 10B, and tables 10A and 10B are discrete EPDCCH-PRB.

TABLE 10A

TABLE 10B

In case1 of Table 11A, for normal CP and normal subframe, and when the system bandwidth is greater than 25 PRBs, the detected DCI formats are 2/2A/2B/2C/2D, or

For normal CP, and configuring 3, 4, 8 special subframes for special subframes, and when the system bandwidth is greater than 25 PRBs, the detected DCI formats are 2/2A/2B/2C/2D, or

Or for a normal subframe under a normal CP, the available REs for transmitting the EPDCCH by deducting overhead such as pilot frequency in each PRB are less than 104 REs, and the detected DCI formats are 1A/1B/1D/1/2/2A/2B/2C/2D/0/4, or

For normal CP, and special subframes of 3, 4, and 8 are configured for the special subframe, and when the system bandwidth is greater than 25 PRBs, the detected DCI formats are 1A/1B/1D/1/2a/2/2B/2C/2D/0/4, and the available REs for transmitting EPDCCH with overhead such as pilot subtracted in each PRB are less than 104 REs.

In Case2 of table 11A, for extended CP, when detected DCI formats are 1A/1B/1D/1/2a/2/2B/2C/2D/0/4 in normal subframe, or,

for normal CP, the special subframe configuration is 1, 2, 6, 7, 9, the detected DCI formats are 1A/1B/1D/1/2A/2/2B/2C/2D/0/4, or

For the extended CP, the special subframe configuration is 1, 2, 3, 5, 6, and the detected DCI formats are 1A/1B/1D/1/2A/2/2B/2C/2D/0/4.

The exception of the conditions of case1 and case2 is case 3.

Control channel candidates for USS of localized EPDCCH are also defined in R11, as shown in tables 11A and 11B.

TABLE 11A

TABLE 11B

In R11, when one DCI format occupies two discrete EPDCCH-PRB, the control channel candidates of the USS are shown in tables 12A and 12B, and when one DCI format configures two localized EPDCCH-PRB sets, the control channel candidates of the USS are shown in tables 13A and 13B. Xp₁And Xp₂Respectively representing the identities of two PRBs. In a specific implementation process, the number of control channel candidates under the same aggregation level may be added. That is, in Case1 in table 12A, the number of control channel candidates at aggregation level 2 may be added, that is, 4+4 — 8.

TABLE 12A

TABLE 12B

TABLE 13A

TABLE 13B

At R11In this embodiment, when a DCI format configures a localized EPDCCH-PRB and a discrete EPDCCH-PRBset, the control channel candidates of the USS are shown in tables 14A and 14B. Xp₁Identification of localized EPDCCH-PRB-set, Xp₂Is the identification of the discrete EPDCCH-PRB-set.

TABLE 14A

TABLE 14B

As can be seen from table 10A, for the USS of the EPDCCH, for the number of PRBs in the resource set of different control channels, the number of control channel candidates for each blind detection process varies, and taking case1 in table 11A as an example, when the resource set of the control channels includes 2 physical resource blocks PRB and is case1, the number of control channel candidates under aggregation level 2 is 4, the number of control channel candidates under aggregation level 4 is 2, the number of control channel candidates under aggregation level 8 is 1, and the total number of blind detections (number of control channel candidates) is 4+2+1 — 7; when the resource set of the control channel includes 4 PRBs, the number of control channel candidates is 8 at aggregation level 2, 4 at aggregation level 4, 4 at aggregation level 8, and 1 at aggregation level 16, and the total blind detection number (the number of control channel candidates) is 8+4+2+1 — 15.

Therefore, the number of control channel candidates of the USS of the EPDCCH is not fixed, and different from the USS of the PDCCH, each blind detection process is 16, so that if the sum of the number of CSS control channel candidates to be detected and the sum of the number of USS control channel candidates to be detected satisfy the third preset sum value, the sum of the number of USS control channel candidates to be detected changes, and the sum of the number of USS control channel candidates to be detected may change accordingly. In a specific implementation process, the sum of the number of the control channel candidates of the CSS to be detected is a decreasing function of the sum of the number of the control channel candidates of the USS to be detected; or, the sum of the numbers of the control channel candidates of the USS to be detected is a decreasing function of the sum of the numbers of the control channel candidates of the CSS to be detected.

The other situation is as follows: the sum of the number of the first control channel candidates to be detected is equal to:

or

Wherein floor () represents rounding down, ceil () represents rounding up, H is a third predetermined sum value, U_iThe number of the second control channel candidates to be detected for the ith blind detection process is the sum of the numbers of the second control channel candidates, β is a weighting factor of the numbers of the control channel candidates, G is the sum of the maximum numbers of the control channel candidates supported by each aggregation level in the first aggregation level set, N is the total number of the blind detection processes of the second control channel, that is, the total number of detected DCI formats, wherein the DCI formats with the same number of bits can be combined into one blind detection process, i is greater than or equal to 0 and less than or equal to N, i and N are integers, β is obtained according to a network equipment broadcast notification, or is configured in a semi-static state, or is configured in a fixed state.

β is the weighting factor of the number of candidate control channels, if CSS needs to detect two processesThe number of total control channel candidates of at least one blind detection process in total required to be detected for the CSS, if the blind detection processes of each CSS are equally divided, the number of the total control channel candidates is equal to the number of the blind detection processes of each CSSM is the number of blind detection processes of the CSS, β is the number which is more than 0 and less than or equal to 1, an unequal method can be adopted, the weighting factors of different processes are different, and in the specific implementation process, the first condition can be rounded downOr rounding upThe number of the control channel candidates of each blind detection process obtained by the method should be limited to the upper limit of G (the maximum supportable number of the control channel candidates of the control channel resource set configured for each blind detection process), and cannot exceed the upper limit.

Taking two blind detection processes of the USS as an example (7+7), H is 44, and each process of the CSS is equally divided as an example, if the CSS has two processes, thenThe above formula becomes

When the control channel resource set of the CSS is 2 PRBs (table 15), and the maximum supportable number of control channel candidates is G equal to 7, then 7 is obtained through the above formula; when the control channel resource set of the CSS is 4 PRBs, the maximum supportable number of control channel candidates is G15, and then 15 is obtained through the above formula; if the control channel resource set of the CSS is 8 PRBs, if the maximum supportable number of control channel candidates is G31, 15 is obtained by the above formula, and at this time, the 15 candidates are prioritized in order from high to low so that the high aggregation level satisfies the maximum supportable number of candidates, and table 16 is obtained. It will be appreciated by those skilled in the art that table 16 is an empty table when control channel candidates are initially allocated to CSS.

Watch 15

TABLE 16

In particular, when the sum of the number of CSS control channel candidates to be detected corresponding to each aggregation level and the number of USS control channel candidates to be detected corresponding to the same aggregation level satisfies a fourth preset sum value.

The number of candidates of the first aggregation level of the first control channel is determined by the following formula

min (floor (β × H-U), G), or;

min(ceil(β*(H-U),G)，

h is a fourth preset sum, U is the number of candidates of a second aggregation level of the second control channel, and G is the maximum number of the candidates of the control channel which can be supported under the first aggregation level of the first control channel;

the first aggregation level and the second aggregation level may be the same aggregation level or different aggregation levels.

In the two possible cases, the number of the first control channel candidates to be detected satisfies a first condition, where the first condition includes:

In another possible implementation manner, the number of second control channel candidates to be detected satisfies a second condition, where the second condition includes:

Wherein floor () represents rounding down, ceil () represents rounding up, T is a fifth preset sum, D is a sum of the maximum number of control channel candidates supported by the aggregation level of each second control channel, C_jSum of the number of first control channel candidates to be detected for each blind detection process, U_jPresetting the total number of second control channel candidates to be detected for each blind detection process, wherein α is a weighting factor of the number of the control channel candidates, P is the total number of the second control channel blind detection processes, and Q is the total number of the first control channel blind detection processes;

As can be understood by those skilled in the art, for a user equipment, a blind detection process is called when a user needs to perform blind detection on a control channel candidate, and for a network equipment, the network equipment needs to send downlink control information on the control channel candidate. That is, the network device sends the downlink control information to the user equipment on the control channel candidates, and correspondingly, the user equipment performs blind detection on the downlink control information on the control channel candidates to acquire the downlink control information.

In the specific implementation process, assuming that the total number of each process of the CSS is fixed to 5, there are two processes,equal to 10, assuming H44, 44-5 2 34 and USS has two processes, in a halving manner, α 1/2, each process is 17 at most, but in case1 currently defined by USS, table 11A shows that when the control channel resource set includes 8 PRB pairs, the number of existing control channel candidates, i.e., the number of existing control channel candidates is equal to 17Is 2(6+4+3+2+1) ═ 32, so that(D-U_j) 16+8+4+2+ 1-16-15. Thus, it is possible to provideThere may also be another 1, which may be assigned, for example, to L-2 in a high-to-low or low-to-high manner, so that the number of control channel candidates is 6 to 7, as shown in table 17.

TABLE 17

the sixth preset sum is equal to the third preset sum, and the sixth preset sum is obtained according to a broadcast notification of a network device, or is a semi-statically configured sum, or is a fixedly configured sum, or is a sum determined by any one or a combination of the following: the system bandwidth, the location of the set of resources of the first control channel, the size of the set of resources of the first control channel, the location of the set of resources of the second control channel, and the size of the set of resources of the second control channel.

Specifically, the seventh preset total value may be a total of the number of control channel candidates corresponding to aggregation level 2 of the CSS and the number of control channel candidates corresponding to aggregation level 2 of the USS, or the seventh preset total value may be a total of the number of control channel candidates corresponding to aggregation level 4 of the CSS and the number of control channel candidates corresponding to aggregation level 2 of the USS, or the seventh preset total value may be a total of the number of control channel candidates corresponding to aggregation levels 2 and 4 of the CSS and the number of control channel candidates corresponding to aggregation levels 2 and 8 of the USS. The present embodiment is not particularly limited with respect to a specific implementation of the seventh preset sum value.

In another possible implementation manner of the preset association condition, when there is resource overlap between the resource set of the first control channel and the resource set of the second control channel, another possible implementation manner of the preset association condition is:

In a specific implementation process, if the CSS and the USS collide, the USS adopts a control channel candidate allocation mode of the CSS. As shown in fig. 3, fig. 3 is a schematic diagram illustrating allocation of control channel candidates according to the present invention, where the first control channel adopts a frequency hopping manner, that is, the frequency domain position of the first control channel is different with time (the frequency domain position of the first control channel is different in sub-frame T1, sub-frame T2, and sub-frame T3), and when the resources of the first control channel and the second control channel overlap, the aggregation level and/or the number of control channel candidates of the second control channel to be detected conform to the aggregation level and/or the number of control channel candidates of the first control channel; or the aggregation level and/or the number of control channel candidates of the control channel which needs to be detected by the first control channel follows the aggregation level and/or the number of control channel candidates of the second control channel.

For the UE, the first set of aggregation levels comprises:

Optionally, the repeatedly detecting that the aggregation levels of the same DCI in different time units are different includes:

Alternatively, the number of times of repeated detection of different aggregation levels or the detection order of the aggregation levels may be configured by a higher layer, or predefined, or determined by the number of available resource elements REs in each physical resource block pair, or inversely proportional to the aggregation level, or determined by the size of the number of bits included in the format of the DCI, or determined according to the coverage, or determined according to the radio network temporary identity RNTI.

Alternatively, the time unit may be a subframe, a slot, or a radio frame.

Optionally, the first control channel is a UE-specific control channel or a common control channel.

For a network device, the first set of aggregation levels comprises:

Optionally, the repeatedly transmitting the same DCI in different time units has different aggregation levels, including:

Optionally, the number of times of repeated transmission of the different aggregation levels or the transmission order of the aggregation levels may be configured by a higher layer, or predefined, or determined by the number of available resource elements REs in each physical resource block pair, or inversely proportional to the aggregation level, or determined by the size of the number of bits included in the format of the DCI, or determined according to a coverage, or determined according to the radio network temporary identity RNTI.

Alternatively, the time unit may be a subframe, a slot, or a radio frame.

For an EPDCCH of a Machine Type Communication (MTC) user, in order to ensure the transmission performance of the EPDCCH, a method of repeatedly transmitting the same DCI in multiple subframes may be adopted. The transmission is repeated multiple times, and different aggregation levels can be adopted for different subframes.

A first rule may be adopted, that is, according to the order of the aggregation levels from large to small, the aggregation level is repeated first and then is repeated for a small time, and the number of times of repetition of different aggregation levels may be different.

Fig. 4 is a schematic diagram of a first rule of the control channel mapping of the present invention, fig. 5 is a schematic diagram of a second rule of the control channel mapping of the present invention, fig. 6 is a schematic diagram of a third rule of the control channel mapping of the present invention, and fig. 7 is a schematic diagram of a fourth rule of the control channel mapping of the present invention.

As shown in fig. 4, for the same DCI, the aggregation level is 8(AL ═ 8) control channels, the time units are T1 subframes and T2 subframes, and the repetition number is K1; aggregating a control channel of level 4(AL ═ 4), time units being T3 subframes and T4 subframes, the number of repetitions being K2; the time unit is T5 subframes and T6 subframes, the aggregation level is 2 control channels (AL ═ 2), and the repetition number is K3; the time unit is a T7 subframe and a T8 subframe, the aggregation level is 1 for the control channel (AL ═ 1), and the repetition number is K4;

alternatively, a second rule may be adopted, that is, according to the order of the aggregation levels from small to large, the aggregation level is repeated first and then the aggregation level is repeated again. And the number of repetitions may be different for different aggregation levels. The UE first detects that the aggregation level is small, for example, in fig. 5, the aggregation level is 1, and if K1 times are detected and not correctly detected yet, the upper limit of the number of detections for detecting the aggregation level 2 is K2, and if not correctly detected yet, the aggregation level is increased again, the aggregation level is detected to be 4, the upper limit of the number of detections is K3, and if not correctly detected yet, the aggregation level is increased again to be 8, and the upper limit of the number of detections is K4.

Alternatively, a third rule may be adopted, for example, in fig. 6, that is, the detection is performed sequentially from small to large in the order of aggregation level, or sequentially from large to small, and if not, the detection is performed sequentially from small to large in the order of aggregation level, or sequentially from large to small until the maximum detection time is detected or reached.

As shown in fig. 7, the positions of the frequency domains of the control channel candidates when the same DCI is repeated in different subframes and the same aggregation level is adopted may be different, for example, the positions of the frequency domains of the T1 subframe and the T2 subframe are changed, all being the control channel candidates having the repetition aggregation level of 1.

For MTC users, in order to ensure the coverage performance of the MTC users, if a Physical Downlink Shared Channel (PDSCH) or a Physical Uplink Shared Channel (PUSCH) for controlling Channel scheduling needs to repeat, the PDSCH or PUSCH may be repeatedly transmitted in the following manner.

Firstly, for user equipment, the user equipment starts to repeatedly send or repeatedly detect first information at different moments;

the user equipment starts to repeatedly send or repeatedly detect first information at different times or in different modulation and coding modes, where the first information includes at least one of a Physical Downlink Shared Channel (PDSCH), a Physical Broadcast Channel (PBCH), a Physical Control format Indicator Channel (pdcch), a Physical hybrid automatic repeat request Indicator Channel (PHICH), a Physical Multicast Channel (PMCH), a Physical Random Access Channel (PRACH), a Physical Uplink Control Channel (PUCCH), and a Physical Uplink Shared Channel (PUSCH).

Optionally, when the user equipment fails to detect the second information at the different time, the user equipment starts to repeatedly send or repeatedly detect the first information for different times at the different time; or

Optionally, the more times that the user equipment fails to detect the second information at the different time, the more times that the user equipment starts to repeatedly send or repeatedly detect the first information at the different time; or

Optionally, when the user equipment fails to detect the second information at different times, the number of times that the user equipment starts to repeatedly transmit or repeatedly detect the first information at the different times is configured by a high-level signaling, or is predefined, or is determined by the radio network temporary identity RNTI; or

For the network equipment, the network equipment starts to repeatedly send or repeatedly detect the first information at different moments;

Optionally, when the network device fails to detect the second information at the different time, the network device starts to repeatedly send or repeatedly detect the first information at the different time for different times; or

Optionally, the more times that the network device fails to detect the second information at the different time, the more times that the network device starts to repeatedly send or repeatedly detect the first information at the different time; or

Optionally, when the network device fails to detect the second information at different times, the number of times that the network device starts to repeatedly send or repeatedly detect the first information at the different times is configured by a high-level signaling, or is predefined, or is determined by the radio network temporary identity RNTI; or

In particular, it can be realized by following possible implementation manners, and in one possible implementation manner, the number of times of repeated transmission of the PDSCH or the PUSCH is associated with the detection performance of the control channel,

when the control channel detection fails, the number of times of repeatedly transmitting or detecting the PDSCH or the PUSCH is increased, and when the control channel detection fails at different time, the number of times of repeatedly transmitting the PDSCH or the PUSCH is increased is different.

The more times of control channel detection failure, the more times of PDSCH or PUSCH repetition transmission increase.

For example, if the control channel is not correctly detected at the first time, the number of repeated transmissions of the PDSCH or the PUSCH is increased by M1 times, and if the control channel is not correctly detected at the second time, the number of repeated transmissions of the PDSCH or the PUSCH is increased by M2 times.

The M1 and M2 are informed by a predefined mode or a high-layer signaling or dynamic signaling mode.

In another possible implementation manner, the modulation and demodulation manner adopted by the repeated transmission of the PDSCH or the PUSCH is associated with the detection performance of the control channel,

when the repeated detection of the control channel fails at different time, the adopted modulation or coding modes for repeatedly transmitting or detecting the PDSCH or the PUSCH are different.

The more times of repeated detection of the control channel failure at different times, the lower the modulation or coding scheme adopted for repeated transmission of the PDSCH or PUSCH.

For example, if 16 Quadrature Amplitude Modulation (QAM) is used for repeatedly transmitting or detecting the PDSCH or PUSCH at a first time and the control channel detection fails at the first time, Quadrature Phase Shift Keying (QPSK) is used for repeatedly transmitting or detecting the PDSCH or PUSCH next time.

Or, if the code rate for repeatedly transmitting or detecting the PDSCH or the PUSCH at the first time is 1/4 and the detection of the control channel at the first time fails, the lower code rate 1/3 is used for repeatedly transmitting or detecting the PDSCH or the PUSCH next time.

Fig. 8 is a schematic structural diagram of a ue according to a first embodiment of the present invention. As shown in fig. 8, the user equipment 80 provided by the embodiment of the present invention includes a determining module 801 and a searching module 802.

The determining module 801 is configured to determine a search interval of a first control channel according to a first aggregation level set corresponding to a first control channel resource set and a number of first control channel candidates to be detected corresponding to each aggregation level in the first aggregation level set;

a searching module 802, configured to detect a control channel within a search interval of the first control channel.

The user equipment provided by the embodiment of the present invention may be configured to execute the technical solution of the method embodiment, and the implementation principle and the technical effect are similar, which are not described herein again.

Optionally, the first aggregation level set comprises:

Optionally, the second aggregation level set is a set of aggregation levels whose number of control channel candidates supported by the first control channel resource set is not zero.

Optionally, a sum of the number of the first control channel candidates to be detected corresponding to each aggregation level is smaller than a second preset sum value, or

Optionally, the preset association condition includes:

or

Optionally, the number of the first control channel candidates to be detected satisfies a first condition, where the first condition includes:

Optionally, the number of second control channel candidates to be detected satisfies a second condition, where the second condition includes:

Optionally, when there is resource overlap between the resource set of the first control channel and the resource set of the second control channel, the preset association condition includes:

Optionally, the second control channel is a UE-specific control channel.

Optionally, the first control channel is a common control channel.

Optionally, the first aggregation level set comprises:

Alternatively, the time unit may be a subframe, a slot, or a radio frame.

An embodiment of the present invention further provides a user equipment, including:

Optionally, when the processing module fails to detect the second information at the different time, the processing module starts to repeatedly send or repeatedly detect the first information at the different time for different times; or

Optionally, the more times that the processing module fails to detect the second information at the different time, the more times that the processing module starts to repeatedly send or repeatedly detect the first information at the different time; or

Optionally, when the processing module fails to detect the second information at different times, the number of times that the processing module starts to repeatedly send or repeatedly detect the first information at the different times is configured by a high-level signaling, or is predefined, or is determined by the radio network temporary identity RNTI; or

Fig. 9 is a schematic structural diagram of a network device according to a first embodiment of the present invention. As shown in fig. 9, the network device 90 provided in the embodiment of the present invention includes a determining module 901 and a sending module 902.

The determining module 901 is configured to determine a search interval of a first control channel according to a first aggregation level set corresponding to a first control channel resource set and a first control channel candidate number corresponding to an aggregation level in the first aggregation level set;

a sending module 902, configured to send a control channel in a search interval of the first control channel.

The network device provided by the embodiment of the present invention may be configured to implement the technical solution of the method embodiment, and the implementation principle and the technical effect are similar, which are not described herein again.

Optionally, the first aggregation level set comprises:

Optionally, a sum of the number of the first control channel candidates corresponding to each aggregation level is smaller than a second preset sum value, or

Optionally, the preset association condition includes:

The sum of the first number of control channel candidates is equal to:

or

Wherein floor () representsRounding down, ceil () meaning rounding up, H being a third predetermined sum value, U_iThe total number of second control channel candidates corresponding to the ith downlink control information DCI, β is a weighting factor of the control channel candidates, G is the total number of the maximum control channel candidates supported by each aggregation level in the first aggregation level set, N is the total number of the DCI corresponding to the second control channel, i is greater than or equal to 0 and less than or equal to N, and i and N are integers;

Optionally, the first number of control channel candidates satisfies a first condition, where the first condition includes:

Optionally, the second number of control channel candidates satisfies a second condition, where the second condition includes:

wherein the sum of the second control channel candidate number is equal toOr

Optionally, the second control channel is a UE-specific control channel.

Optionally, the first control channel is a common control channel.

Optionally, the first aggregation level set comprises:

Optionally, the number of times of repeated transmission of the different aggregation levels or the transmission order of the aggregation levels may be configured by a higher layer, or predefined, or determined by the number of available resource elements REs in each physical resource block pair, or inversely proportional to the aggregation level, or determined by the size of the number of bits included in the format of the DCI, or determined according to the coverage, or determined according to the radio network temporary identity RNTI.

Alternatively, the time unit may be a subframe, a slot, or a radio frame.

An embodiment of the present invention further provides a network device, including:

Fig. 10 is a schematic structural diagram of a second ue embodiment of the present invention. As shown in fig. 10, the user equipment 100 provided in the present embodiment includes a processor 1001 and a memory 1002. The user equipment 100 may further include a transmitter 1003 and a receiver 1004. The transmitter 1003 and the receiver 1004 may be connected to the processor 1001. Wherein the transmitter 1003 is configured to transmit data or information, the receiver 1004 is configured to receive data or information, the memory 1002 stores execution instructions, and when the user equipment 100 operates, the processor 1001 communicates with the memory 1002, and the processor 1001 calls the execution instructions in the memory 1002 to perform the following operations:

Optionally, the first aggregation level set comprises:

Optionally, the preset association condition includes:

or

Optionally, the second control channel is a UE-specific control channel.

Optionally, the first control channel is a common control channel.

Optionally, the first aggregation level set comprises:

Optionally, the repeatedly detecting the same DCI at different time units has different aggregation levels, including:

Alternatively, the time unit may be a subframe, a slot, or a radio frame.

Fig. 11 is a schematic structural diagram of a second network device according to the embodiment of the present invention. As shown in fig. 11, the network device 110 provided by the present embodiment includes a processor 1101 and a memory 1102. Network device 110 may also include a transmitter 1103, a receiver 1104. The transmitter 1103 and the receiver 1104 may be coupled to the processor 1101. Wherein the transmitter 1103 is configured to transmit data or information, the receiver 1104 is configured to receive data or information, the memory 1102 stores execution instructions, when the network device 110 operates, the processor 1101 communicates with the memory 1102, and the processor 1101 calls the execution instructions in the memory 1102 to perform the following operations:

Optionally, the first aggregation level set comprises:

Optionally, the preset association condition includes:

The sum of the first number of control channel candidates is equal to:

or

wherein the sum of the second control channel candidate number is equal toOr

Optionally, the second control channel is a UE-specific control channel.

Optionally, the first control channel is a common control channel.

Optionally, the first aggregation level set comprises:

Alternatively, the time unit may be a subframe, a slot, or a radio frame.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units or modules is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or modules may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.

The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, 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.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for detecting a control channel, comprising:

2. A method for transmitting a control channel, comprising:

3. A method for processing information, comprising:

4. A method for processing information, comprising:

5. A user device, comprising:

6. A network device, comprising:

7. A user device, comprising:

8. A network device, comprising: