CN109819475A

CN109819475A - A kind of the determination method and device of search space resource

Info

Publication number: CN109819475A
Application number: CN201711160222.XA
Authority: CN
Inventors: 贺海港; 左志松; 郝鹏; 毕峰; 刘文豪
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-11-20
Filing date: 2017-11-20
Publication date: 2019-05-28
Anticipated expiration: 2037-11-20
Also published as: WO2019096324A1; CN109819475B

Abstract

The invention discloses determination method, apparatus, storage medium and the processors of a kind of search space resource of Physical Downlink Control Channel.This method, comprising: according to the attribute information of physical downlink control channel PDCCH, obtain accumulated value k, the attribute information includes at least following one: information, information, the information of time slot of monitoring machine meeting of orthogonal frequency division multiplex OFDM symbol；According to the accumulated value k, the index value of control channel unit CCE in PDCCH search space is determined.The determination of the starting control channel unit index to monitoring cycle less than the USS of 1 time slot is realized, and then is avoided under the scene of multiple PDCCH monitoring machines meeting of same time slot, two terminals have monitoring conflict on search space.

Description

Method and device for determining search space resources

Technical Field

The present invention relates to communications technologies, and in particular, to a method, an apparatus, a storage medium, and a processor for determining search space resources of a physical downlink control channel.

Background

In a Long Term Evolution (LTE) technology, a terminal needs to perform blind detection on a Physical Downlink Control Channel (PDCCH for short) to obtain Downlink Control Information (DCI for short) carried on the PDCCH, where the DCI includes scheduling Information for indicating the terminal to carry a Downlink shared Channel of Downlink data. That is, the terminal may obtain scheduling information of the PDSCH according to downlink control information carried by the PDCCH, and then receive downlink data information carried on the PDSCH according to the scheduling information.

In the prior art, a terminal attempts to receive DCI corresponding to a PDCCH candidate in a UE-Specific Search Space (USS). Specifically, the terminal may determine an index of a starting Control Channel Element of the USS according to a slot number and a Radio Network Temporary Identity (RNTI), and further, attempt to receive DCI carried by the PDCCH at some resource locations that may carry PDCCH channels, where the PDCCH resources that may carry DCI are referred to as PDCCH candidates, and each PDCCH candidate is composed of L Control Channel Elements (CCEs), where a value of L is, for example, one of {1,2,4,8}, and multiple PDCCH candidates may form one PDCCH search space.

In a new generation communication technology, a monitoring period of a terminal monitoring a PDCCH may be less than one time slot, that is, in a scenario on a plurality of PDCCH monitoring opportunities in the same time slot, an index of a start control channel unit of a USS is determined by using a time slot number and an RNTI, which may cause a monitoring conflict between two UEs in a search space of the PDCCH.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a method, an apparatus, a storage medium, and a processor for determining search space resources of a physical downlink control channel, which can solve the technical problem that two UEs have a monitoring conflict in a search space of a PDCCH.

In order to achieve the object of the present invention, the present invention provides a method for determining search space resources of a physical downlink control channel, including:

acquiring an accumulated value k according to attribute information of a Physical Downlink Control Channel (PDCCH), wherein the attribute information at least comprises one of the following items: information of OFDM symbols, information of monitoring opportunities, information of time slots;

and determining an index value of a Control Channel Element (CCE) in the PDCCH search space according to the accumulated value k.

Further, the obtaining the accumulated value k according to the attribute information of the physical downlink control channel PDCCH includes:

and accumulating the OFDM symbols of each time slot in the PDCCH to obtain the accumulated value.

Further, the information of the monitoring opportunity at least comprises: monitoring an opportunity index value, wherein the information of the orthogonal frequency division multiplexing OFDM symbol at least comprises: the number of OFDM symbols, the information of the time slot at least comprises an index value of the time slot;

the accumulating the OFDM symbols of each slot in the PDCCH to obtain the accumulated value includes:

and multiplying the index value of the time slot by the number of the OFDM symbols, adding the obtained product to the index value of the monitoring opportunity, wherein the obtained sum is the accumulated value k, the number of the OFDM symbols comprises the number of the OFDM symbols in the time slot, and the index value of the monitoring opportunity comprises the index value of the OFDM symbol with the first monitoring opportunity in the current time slot.

Further, the obtaining of the accumulated value k includes:

and adding the monitoring opportunities in each time slot to obtain the accumulated value k.

Further, the information of the time slot at least comprises: an index value of a slot, the information of the monitoring opportunity at least comprises: a monitoring opportunity index value and a monitoring opportunity number;

the adding the monitoring opportunities in each time slot to obtain the accumulated value k includes:

when the monitoring period is less than or equal to 1 time slot, multiplying the index value of the time slot by the monitoring opportunity number, adding the obtained product to the monitoring opportunity index value in the time slot, wherein the obtained sum is the accumulated value k, the monitoring opportunity number comprises the number of the monitoring opportunities in each time slot, and the monitoring opportunity index value comprises the index value of the OFDM symbol with the first monitoring opportunity in the current time slot; or,

when the monitoring period is larger than 1 time slot, subtracting the index value of the time slot from an offset value, taking an integer as the result of dividing the obtained difference value by the number of the time slots in the monitoring period, multiplying the integer by the number of monitoring opportunities, adding the obtained product to the index value of the monitoring opportunities in the time slot, and obtaining the sum of the obtained sum as the accumulated value k, wherein the number of the monitoring opportunities comprises the number of the monitoring opportunities in each time slot, and the offset value comprises the initial value of the monitoring period to the offset value of the time slot with the monitoring opportunities.

Further, the obtaining of the accumulated value k includes:

accumulating the number of the time slots with the monitoring opportunity to obtain the accumulated value k, wherein the information of the time slots comprises the number of the time slots with the monitoring opportunity.

Further, the information of the time slot at least includes an index value of the time slot, and the information of the time slot at least includes: monitoring the number of time slots in a period;

accumulating the number of time slots in which the monitoring opportunity exists to obtain the accumulated value k, wherein the accumulating comprises:

and when the monitoring period is greater than 1 time slot, subtracting the index value of the time slot from an offset value, taking an integer from the obtained difference value and the result of dividing the number of the time slots in the monitoring period, wherein the obtained integer is the accumulated value k, and the offset value comprises the initial value of the monitoring period to the offset value of the time slot with monitoring opportunity.

Further, the obtaining of the accumulated value k includes: when the monitoring period is greater than 1 time slot, adding the number of monitoring opportunities in each first type of time slot to the preset number of monitoring opportunities in each second type of time slot, wherein the obtained sum is the accumulated value k, the first type of time slot includes time slots with monitoring opportunities, the second type of time slot includes time slots without monitoring opportunities, the preset number of monitoring opportunities is an integer value, and the information of the monitoring opportunities at least includes: the number of monitoring opportunities.

Further, the preset number of monitoring opportunities is equal to the number of monitoring opportunities in the first class of time slots.

Further, after determining the index value of the CCE in the PDCCH search space according to the accumulated value k, the method further includes:

and according to the index value of the CCE, carrying the downlink control information DCI at the position of the index mark of the CCE.

and monitoring the downlink control information DCI on the PDCCH at the position identified by the index value of the CCE according to the index value of the CCE.

The invention also provides a device for determining the search space resource of the physical downlink control channel, which comprises the following steps:

a processing module, configured to obtain an accumulated value k according to attribute information of a physical downlink control channel PDCCH, where the attribute information at least includes any one or a combination of the following: information of OFDM symbols, information of monitoring opportunities, information of time slots;

and the determining module is used for determining the index value of the control channel element CCE in the PDCCH searching space according to the accumulated value k.

Further, the processing module is further configured to accumulate the OFDM symbols of each slot in the PDCCH to obtain the accumulated value.

the processing module is further configured to multiply an index value of a time slot by the number of OFDM symbols, add the obtained product to a monitoring opportunity index value, where the obtained sum is the accumulated value k, the number of OFDM symbols includes the number of OFDM symbols in the time slot, and the monitoring opportunity index value includes an index value of a monitoring opportunity in the current time slot.

Further, the processing module is further configured to add the monitoring opportunities in each time slot to obtain the accumulated value k.

the processing module is further configured to, when the monitoring period is less than or equal to 1 time slot, multiply an index value of the time slot by a monitoring opportunity number, add an obtained product to the monitoring opportunity index value in the time slot, where the obtained sum is the accumulated value k, and the monitoring opportunity number includes the number of monitoring opportunities in each time slot; or,

Further, the processing module is further configured to accumulate the number of time slots in which the monitoring opportunity exists to obtain the accumulated value k, where the information of the time slots includes the number of time slots in which the monitoring opportunity exists.

the processing module is further configured to subtract the index value of the timeslot from an offset value when the monitoring period is greater than 1 timeslot, obtain an integer from a result of dividing an obtained difference value by the number of timeslots in the period, where the obtained integer is the accumulated value k, and the offset value includes an initial value of the monitoring period and an offset value of a timeslot with a monitoring opportunity.

Further, the processing module is further configured to, when the monitoring period is greater than 1 time slot, add and add the number of monitoring opportunities in each first-class time slot and a preset number of monitoring opportunities in each second-class time slot, where the obtained sum is the accumulated value k, the first-class time slot includes a time slot in which a monitoring opportunity exists, the second-class time slot includes a time slot in which a monitoring opportunity does not exist, the preset number of monitoring opportunities is an integer value, and the information of the monitoring opportunities at least includes: the number of monitoring opportunities.

Further, the processing module is further configured to bear downlink control information DCI at the position identified by the index value of the CCE according to the index value of the CCE.

Further, the processing module is further configured to monitor the downlink control information DCI of the PDCCH at the position identified by the index value of the CCE according to the index value of the CCE.

The present invention provides a storage medium comprising a stored program, wherein the program when executed performs any of the methods described above.

The invention provides a processor for running a program, wherein the program executes to perform any one of the above methods.

Compared with the prior art, the method comprises the steps of obtaining an accumulated value k according to attribute information of a Physical Downlink Control Channel (PDCCH), wherein the attribute information at least comprises any one of the following items: information of OFDM symbols, information of monitoring opportunities, information of time slots; and determining an index value of a Control Channel Element (CCE) in the PDCCH search space according to the accumulated value k. The method and the device realize the determination of the initial control channel unit index of the USS with the monitoring period less than 1 time slot, and further avoid the monitoring conflict between two terminals in a search space under the scene of a plurality of PDCCH monitoring opportunities in the same time slot.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a flowchart illustrating an embodiment of a method for determining search space resources of a physical downlink control channel according to the present invention;

fig. 2 is a flowchart illustrating an embodiment of a method for determining search space resources of a physical downlink control channel according to the present invention;

fig. 3 is a schematic time slot structure diagram of an embodiment of a method for determining search space resources of a physical downlink control channel according to the present invention;

fig. 4 is a schematic diagram of a time slot structure of a second embodiment of the method for determining search space resources of a physical downlink control channel according to the present invention;

fig. 5 is a schematic diagram of a time slot structure of a third embodiment of a method for determining search space resources of a physical downlink control channel according to the present invention;

fig. 6 is a schematic structural diagram of an embodiment of a device for determining search space resources of a physical downlink control channel according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.

The method for determining the search space resource of the physical downlink control channel provided by the embodiment of the invention can be particularly applied to determining the search space resource of the physical downlink control channel. The method for determining the search space resource of the physical downlink control channel provided in this embodiment may be executed by a determining apparatus and a terminal for the search space resource of the physical downlink control channel, where the determining apparatus for the search space resource of the physical downlink control channel may be integrated in a base station, a terminal, or separately configured, and the determining apparatus for the search space resource of the physical downlink control channel may be implemented in a software and/or hardware manner. The following describes a method, an apparatus, a terminal and a system for determining search space resources of a physical downlink control channel according to this embodiment in detail.

Fig. 1 is a flowchart illustrating an embodiment of a method for determining search space resources of a physical downlink control channel according to the present invention; as shown in fig. 1, an executing subject of this embodiment may be a base station, and the method for determining search space resources of a physical downlink control channel provided by the present invention includes:

step 101, obtaining an accumulated value k according to attribute information of a physical downlink control channel PDCCH.

In this embodiment, the attribute information includes at least one of: information of Orthogonal Frequency Division Multiplexing (OFDM) symbol, information of monitoring opportunity, information of time slot.

For obtaining the accumulated value k according to the attribute information of the physical downlink control channel PDCCH, the method at least comprises the following implementation modes:

in a first implementation manner, the OFDM symbols of each slot in the PDCCH are accumulated to obtain the accumulated value.

For example, the information of the monitoring opportunity includes at least: monitoring an opportunity index value, wherein the information of the orthogonal frequency division multiplexing OFDM symbol at least comprises: the number of OFDM symbols, the information of the time slot at least comprises an index value of the time slot; multiplying the index value of the time slot by the number of OFDM symbols, adding the obtained product to the index value of the monitoring opportunity, wherein the obtained sum is the accumulated value k, the number of the OFDM symbols comprises the number of the OFDM symbols in the time slot, and the index value of the monitoring opportunity comprises the index value of the OFDM symbol with the first monitoring opportunity in the current time slot.

In a second implementation, the monitoring opportunities in each time slot are added to obtain the accumulated value k. The information of the time slot at least comprises: an index value of a slot, the information of the monitoring opportunity at least comprises: a monitoring opportunity index value and a monitoring opportunity number;

for example, when the monitoring period is less than or equal to 1 time slot, multiplying the index value of the time slot by the number of monitoring opportunities, adding the obtained product to the index value of the monitoring opportunities in the time slot, and obtaining the sum as the accumulated value k, where the number of monitoring opportunities includes the number of monitoring opportunities in each time slot, and the index value of the monitoring opportunities includes the index value of the OFDM symbol in which the first monitoring opportunity exists in the current time slot; or,

In a third implementation manner, the number of time slots with monitoring opportunities is accumulated to obtain the accumulated value k, where information of the time slots at least includes an index value of the time slot, and the information of the time slots at least includes: the number of slots within a period is monitored.

For example, when the monitoring period is greater than 1 time slot, subtracting the index value of the time slot from an offset value, taking an integer as a result of dividing the obtained difference value by the number of time slots in the period, where the obtained integer is the accumulated value k, and the offset value includes an initial value of the monitoring period and an offset value of a time slot with a monitoring opportunity.

In a fourth implementation manner, when the monitoring period is greater than 1 time slot, the number of monitoring opportunities in each first-class time slot is added to the preset number of monitoring opportunities in each second-class time slot, the obtained sum is the accumulated value k, the first-class time slot includes a time slot in which a monitoring opportunity exists, the second-class time slot includes a time slot in which no monitoring opportunity exists, and the preset number of monitoring opportunities is an integer value. The information of the monitoring opportunity includes at least: the number of monitoring opportunities.

And step 102, determining an index value of the CCE in the PDCCH search space according to the accumulated value k.

Specifically, the initial CCE index Yp, k of the search space corresponding to the given aggregation level L is determined based on the accumulated value k and the RNTI, and then all CCE indexes of the search space are obtained. For example, Yp, k ═ Y_p,k＝(A_p·Y_p,k-1) mod D, in which Y_p,-1＝n_RNTI≠0，A₀＝39827，A₁＝39829， D＝65537，n_RNTIDenotes the number of RNTI, L is one value in the set {1,2,4,8,16,32}, and Y is 0 when k is_p,kIs indexed by the starting CCE of the search space.

On the basis of the above embodiment, an accumulated value k is obtained according to attribute information of a physical downlink control channel PDCCH, where the attribute information at least includes any one or a combination of the following items: orthogonal Frequency Division Multiplexing (OFDM) symbol information, monitoring opportunity information and time slot information; and determining an index value of the CCE in the PDCCH search space according to the accumulated value k. The method and the device realize the determination of the initial control channel unit index of the USS with the monitoring period less than 1 time slot, and further avoid the monitoring conflict between two terminals in a search space under the scene of a plurality of PDCCH monitoring opportunities in the same time slot.

In a fourth implementation manner of the foregoing embodiment, preferably, the preset number of monitoring opportunities is equal to the number of monitoring opportunities in the first class of time slots.

Further, on the basis of the foregoing embodiment, after determining an index value of a CCE in a PDCCH search space according to the accumulated value k, the method further includes:

according to the index value of the CCE, the downlink control information DCI is carried at the position identified by the CCE index value, that is, firstly, according to the index value of the initial CCE, the index values of all CCEs in the PDCCH search control space are determined, and then, the downlink control information DCI is carried at least at part of the positions identified by the indexes of all CCEs.

Fig. 2 is a flowchart illustrating an embodiment of a method for determining search space resources of a physical downlink control channel according to the present invention; as shown in fig. 2, an execution subject of this embodiment may be a terminal, and the method for determining search space resources of a physical downlink control channel provided by the present invention includes:

step 201, obtaining an accumulated value k according to attribute information of a physical downlink control channel PDCCH.

In this embodiment, the attribute information includes at least one of: information of OFDM symbols, information of monitoring opportunities, information of time slots.

For example, the index value of the time slot is multiplied by the number of OFDM symbols, the obtained product is added to the index value of the monitoring opportunity, the obtained sum is the accumulated value k, the number of OFDM symbols includes the number of OFDM symbols in the time slot, and the index value of the monitoring opportunity includes the index value of the monitoring opportunity in the current time slot.

In a second implementation, the monitoring opportunities in each time slot are added to obtain the accumulated value k.

For example, when the monitoring period is less than 1 time slot, multiplying the index value of the time slot by the number of monitoring opportunities, adding the obtained product to the monitoring opportunity index value in the time slot, and obtaining the sum as the accumulated value k, where the monitoring opportunity index value includes the index value of the OFDM symbol having the first monitoring opportunity in the current time slot; or,

when the monitoring period is larger than 1 time slot, subtracting the index value of the time slot from an offset value, taking an integer as the result of dividing the obtained difference value by the number of the time slots in the period, multiplying the integer by the number of monitoring opportunities, adding the obtained product to the index value of the monitoring opportunities in the time slot, wherein the obtained sum is the accumulated value k, the number of the monitoring opportunities comprises the number of the monitoring opportunities in each time slot, and the offset value comprises the initial value of the monitoring period to the offset value of the time slot with the monitoring opportunities.

In a third implementation manner, the number of time slots with monitoring opportunities is accumulated to obtain the accumulated value k.

In a fourth implementation manner, when the monitoring period is greater than 1 time slot, the number of monitoring opportunities in each first-class time slot and the preset number of monitoring opportunities in each second-class time slot are added in an accumulated manner, the obtained sum is the accumulated value k, the first-class time slot includes a time slot in which a monitoring opportunity exists, the second-class time slot includes a time slot in which a monitoring opportunity does not exist, and the preset number of monitoring opportunities is an integer value.

And step 202, determining an index value of the CCE in the PDCCH search space according to the accumulated value k.

Specifically, the initial CCE index Yp, k of the search space corresponding to the given aggregation level L is determined based on the accumulated value k and the RNTI. For example, Yp, k ═ Y_p,k＝(A_p·Y_p,k-1) mod D, where Y_p,-1＝n_RNTI≠0，A₀＝39827，A₁＝39829，D＝65537，n_RNTIDenotes the number of RNTI, L is one value in the set {1,2,4,8,16,32}, and Y is 0 when k is_p,kIs indexed by the starting CCE of the search space.

On the basis of the above embodiment, an accumulated value k is obtained according to attribute information of a physical downlink control channel PDCCH, where the attribute information at least includes one of: information of OFDM symbols, information of monitoring opportunities, information of time slots; and determining an index value of the CCE in the PDCCH search space according to the accumulated value k. The method and the device realize the determination of the initial control channel unit index of the USS with the monitoring period less than 1 time slot, and further avoid the monitoring conflict between two terminals in a search space under the scene of a plurality of PDCCH monitoring opportunities in the same time slot.

Fig. 3 is a schematic time slot structure diagram of an embodiment of a method for determining search space resources of a physical downlink control channel according to the present invention; as shown in fig. 3, for the first implementation manner, the method for determining search space resources of a physical downlink control channel provided by the present invention specifically includes:

the monitoring period of the search space is one slot less. In this embodiment, it is assumed that one slot includes 14 symbols, and each slot includes N ═ 2 monitoring opportunities in a search space, each PDCCH monitoring opportunity is composed of two OFDM symbols, and the period of the monitoring opportunities in the search space is 7 OFDM symbols. In this embodiment, for a given search space, there are two monitoring opportunities on each slot, containing 2 OFDM symbols for each PDCCH monitoring opportunity.

And on the base station side, accumulating the OFDM symbols by the base station to generate an accumulated value k, and calculating the index of the initial CCE of the search space by the base station according to the accumulated value k and the RNTI. More specifically, for the accumulation of OFDM symbols, accumulation is started from slot index0, which is n for slot index_sFor the ith monitoring opportunity numbered from zero in the slot of (a), the accumulated value k is 14 × n_s+j。

In the above formula, 14 indicates that one slot contains 14 OFDM symbols, and j indicates n_sThe index of the first OFDM symbol of the two OFDM symbols corresponding to the ith PDCCH monitoring opportunity numbered from zero in the slot of (a). According to the above formula, in fig. 3, for the monitoring opportunity with i being 0 numbered from zero in slot index0, the accumulated value k is 0; for the monitoring opportunity of the ith 1 numbered from zero in the slot index 1, the accumulated value k is 21; for the monitoring opportunity with the i-th value of 0 numbered from zero in the slot index 3, the accumulated value k is 42;

after computing the accumulated value k, the starting CCE index Yp, k for a given USS search space is computed based on the accumulated value k and the RNTI, and Yp, k ═ Y_p,k＝(A_p·Y_p,k-1) mod D, where Y_p,-1＝n_RNTI≠0,A₀＝39827,A₁＝39829,D＝65537,n_RNTIThe number of the RNTI is shown.

According to the formula, the nth can be calculated_sThe accumulated value k corresponding to the ith monitoring opportunity numbered from zero in each slot, and the starting CCE index Yp, k of the USS search space corresponding to the monitoring opportunity. In thatAfter calculating Yp, k, further obtaining the indexes of all CCEs in the USS search space according to the following formula,

for the above formula, the meaning of the individual parameters is explained in table 1:

table 1 search space parameter interpretation

And at the terminal side, accumulating the OFDM symbols by the terminal to generate an accumulated value k, and calculating the index of the initial CCE of the search space by the terminal according to the accumulated value k and the RNTI. More specifically, for the accumulation of OFDM symbols, accumulation is started from slot index0, which is n for slot index_sFor the ith monitoring opportunity in slot, the accumulated value k is 14 xn_s+j；

In the above formula, 14 indicates that one slot contains 14 OFDM symbols, and j indicates n_sThe slot of (a) is the index of the first OFDM symbol of the two OFDM symbols corresponding to the ith monitoring opportunity numbered from zero.

According to the above formula, in fig. 3, for the monitoring opportunity with i being 0 numbered from zero in slot index0, the accumulated value k is 0; for the monitoring opportunity with the number i being 1 from zero in slot index 1, the accumulated value k being 21; for the monitoring opportunity with the i-th value of 0 numbered from zero in the slot index 3, the accumulated value k is 42;

after computing the accumulated value k, the starting CCE index Yp, k for a given USS search space is computed based on the accumulated value k and the RNTI, and Yp, k ═ Y_p,k＝(A_p·Y_p,k-1) mod D, in which,

Y_p,-1＝n_RNTI≠0，A₀＝39827，A₁＝39829，D＝65537，n_RNTIthe number of the RNTI is shown.

According to the formula, the nth can be calculated_sThe accumulated value k corresponding to the ith monitoring opportunity numbered from zero in each slot, and the starting CCE index Yp, k of the USS search space corresponding to the monitoring opportunity. After calculating Yp, k, the indexes of all CCEs in the USS search space are further obtained according to the following formula.

For a given search space, after the terminal obtains the CCE index corresponding to the search space, the terminal performs blind detection on the PDCCH on the aggregation level corresponding to the given search space.

Another embodiment of the method for determining search space resources of a physical downlink control channel provided in the present invention, when a monitoring period of a search space in the second implementation manner is less than 1 time slot, specifically includes: as shown in fig. 3, it is assumed that one slot contains 14 symbols, and N ═ 2 monitoring opportunities in each slot are contained, each monitoring opportunity is composed of two OFDM symbols, and the period of the monitoring opportunities in the search space is 7 OFDM symbols. In this embodiment, there are two PDCCH monitoring opportunities on each slot for a given search space.

And on the base station side, accumulating by the base station according to the number of the monitoring opportunities to generate an accumulated value k, and calculating the index of the initial CCE of the search space by the base station according to the accumulated value k and the RNTI. More specifically, for accumulation of the number of detection opportunities, accumulation is performed starting from slot index0, which is n for slot index_sFor the ith monitoring opportunity numbered from zero in the slot of (a), the accumulated value k is N × N_s+ i. Where N is the number of monitoring opportunities in each slot, as shown in the figureAccording to this formula, for example, for the monitoring opportunity of i-0 numbered from zero in slot index0, the accumulated value k is 0 in fig. 3; for the monitoring opportunity with the number i being 1 from zero in the slotindex 2, the accumulated value k being 5; for the monitoring opportunity with the i-th value of 0 numbered from zero in slot index 3, the accumulated value k is 6.

After computing the accumulated value k, the starting CCE index Yp, k for a given USS search space is computed based on the accumulated value k and the RNTI, and Yp, k ═ Y_p,k＝(A_p·Y_p,k-1) mod D, where Y_p,-1＝n_RNTI≠0， A₀＝39827，A₁＝39829，D＝65537，n_RNTIThe number of the RNTI is shown.

According to the formula, the nth can be calculated_sThe accumulated value k corresponding to the ith monitoring opportunity numbered from zero in each slot, and the starting CCE index Yp, k of the USS search space corresponding to the monitoring opportunity. After calculating Yp, k, further obtain the index of all CCEs in the USS search space according to the following formula:

for the above formula, the meaning of each parameter is explained as shown in table 1.

And at the terminal side, accumulating by the terminal according to the number of the monitoring opportunities to generate an accumulated value k, and calculating the index of the initial CCE of the search space by the terminal according to the accumulated value k and the RNTI. More specifically, for accumulation of the number of detection opportunities, accumulation is performed starting from slot index0, which is n for slot index_sFor the ith monitoring opportunity numbered from zero in the slot of (a), the accumulated value k is N × N_s+ i. Where N is the number of monitoring opportunities per slot, as shown in fig. 3, for example, N is 2, according to the above formula, in fig. 3, for the monitoring opportunity whose i is 0 numbered from zero in slot index0, the accumulated value k is 0; for the monitoring opportunity with the number i being 1 from zero in the slotindex 2, the accumulated value k being 5; to pairThe monitoring opportunity of the i-th which is numbered from zero in slot index 3 is 0, and the accumulated value k is 6;

after calculating the accumulated value k, the base station calculates the starting CCE index Yp, k of the given USS search space based on the accumulated value k and the RNTI, and Yp, k ═ Y_p,k＝(A_p·Y_p,k-1) mod D, where Y_p,-1＝n_RNTI≠0,A₀＝39827,A₁＝39829,D＝65537,n_RNTIThe number of the RNTI is shown.

According to the formula, the base station calculates to obtain the nth_sThe accumulated value k corresponding to the ith monitoring opportunity numbered from zero in each slot, and the starting CCE index Yp, k of the USS search space corresponding to the monitoring opportunity. After calculating Yp, k, further obtaining the indexes of all CCEs in the USS search space according to the following formula

Fig. 4 is a schematic diagram of a time slot structure of a second embodiment of the method for determining search space resources of a physical downlink control channel according to the present invention; as shown in fig. 4, for the method for determining search space resources of a physical downlink control channel provided by the present invention when the monitoring period is greater than 1 time slot in the second implementation manner, the method specifically includes:

the monitoring period of the search space is M slots, where M is 5 in this embodiment. Within one detection slot, there are N monitoring opportunities, N being 2 in this embodiment. As shown in FIG. 4, the offset of the first monitor slot relative to the slot of slot index0 is 2 slots. In addition, in the present embodiment, it is assumed that one slot includes 14 symbols, and each PDCCH monitoring opportunity is composed of two OFDM symbols.

And on the base station side, accumulating by the base station according to the number of the monitoring opportunities to generate an accumulated value k, and calculating the index of the initial CCE of the search space by the base station according to the accumulated value k and the RNTI. More specifically, the accumulated value k is obtained by accumulating the number of detection opportunities, and in the calculation of the accumulated value k, only the detection opportunities on the slots of the monitored PDCCH are accumulated, and the detection opportunities on the non-PDCCH detection slots are not accumulated, corresponding to a specific search space. For example, in fig. 4, in slots 0 to 11, for a certain search space, the terminal only needs to perform PDCCH blind detection on slots 2 and 7, and on other slots, PDCCH blind detection is not needed. Therefore, slots 2 and 7 of slots 0 to 11 are slots for monitoring the PDCCH, and slots other than slots 2 and 7 of slots 0 to 11 are slots for not monitoring the PDCCH.

In this embodiment, the calculation of the accumulated value k starts from slot index0, and is performed for slot n for PDCCH detection_sFor the ith monitoring opportunity, the accumulated value k is N × floor ((N)_s-offset)/M) + i. According to this formula, in fig. 4, for a PDCCH monitoring opportunity with the i-th value of 0 numbered from zero in slot index2, the accumulated value k is 0; for a PDCCH monitoring opportunity with the number i being 1 from zero in slot index2, the accumulated value k being 1; for a PDCCH monitoring opportunity with the number of i being 1 from zero in slot index 7, the accumulated value k being 3;

According to the formula, the nth can be calculated_sThe accumulated value k corresponding to the ith monitoring opportunity numbered from zero in each slot, and the starting CCE index Yp, k of the USS search space corresponding to the monitoring opportunity. After calculating Yp, k, further obtaining the indexes of all CCEs in the USS search space according to the following formula

And the terminal side accumulates according to the number of the monitoring opportunities to generate an accumulated value k, and the terminal calculates the index of the initial CCE of the search space according to the accumulated value k and the RNTI. More specifically, the accumulated value k is obtained by accumulating the number of detection opportunities, and in the calculation of the accumulated value k, only the detection opportunities on the slots of the monitored PDCCH are accumulated, and the detection opportunities on the non-PDCCH detection slots are not accumulated, corresponding to a specific search space. For example, in fig. 4, in slots 0 to 11, for a certain search space, the terminal only needs to perform PDCCH blind detection on slots 2 and 7, and on other slots, PDCCH blind detection is not needed. Therefore, slots 2 and 7 of slots 0 to 11 are slots for monitoring the PDCCH, and slots other than slots 2 and 7 of slots 0 to 11 are slots for not monitoring the PDCCH.

In this embodiment, the calculation of the accumulated value k starts from slot index0, and is performed for slot n for PDCCH detection_sFor the ith monitoring opportunity numbered from zero, the accumulated value k is N × floor ((N)_s-offset)/M) + i. According to this formula, in fig. 4, for a PDCCH monitoring opportunity with the i-th value of 0 numbered from zero in slot index2, the accumulated value k is 0; for a PDCCH monitoring opportunity with the number i being 1 from zero in slot index2, the accumulated value k being 1; for a PDCCH monitoring opportunity with the number of i being 1 from zero in slot index 7, the accumulated value k being 3;

after calculating the accumulated value k, the terminal calculates a starting CCE index Yp, k of a given USS search space based on the accumulated value k and the RNTI, and Yp, k ═ Y_p,k＝(A_p·Y_p,k-1) mod D, where Y_p,-1＝n_RNTI≠0,A₀＝39827,A₁＝39829,D＝65537,n_RNTIThe number of the RNTI is shown.

According to the above formula, can be calculatedTo the n-th_sThe accumulated value k corresponding to the ith monitoring opportunity numbered from zero in each slot, and the starting CCE index Yp, k of the USS search space corresponding to the monitoring opportunity. After calculating Yp, k, further obtaining the indexes of all CCEs in the USS search space according to the following formula

Fig. 5 is a schematic diagram of a time slot structure of a third embodiment of a method for determining search space resources of a physical downlink control channel according to the present invention; as shown in fig. 5, for the method for determining search space resources of a physical downlink control channel provided by the present invention when the monitoring period is greater than 1 time slot in the third implementation manner, the method specifically includes:

the monitoring period of the search space is M slots, where M is 5 in this embodiment. In one PDCCH monitoring slot, 1 monitoring opportunity, where N is 2 in this embodiment. As shown in fig. 5, the offset of the first PDCCH monitoring slot with respect to the slot of slot index0 is 1 slot. In addition, in the present embodiment, it is assumed that one slot includes 14 symbols, and each PDCCH monitoring opportunity is composed of two OFDM symbols.

And on the base station side, accumulating the slot number of the PDCCH to be detected by the base station to generate an accumulated value k, and calculating the index of the initial CCE of the search space by the base station according to the accumulated value k and the RNTI. More specifically, the accumulated value k is obtained by accumulating the number of slots of the PDCCH to be detected, and only the slots of the monitored PDCCH are accumulated, but not the slots of the non-PDCCH detection slots, in the calculation of the accumulated value k, corresponding to a specific search space. For example, in fig. 5, in slots 0 to 11, for a certain search space, the terminal only needs to perform PDCCH blind detection on slots 2 and 7, and on other slots, PDCCH blind detection is not needed. Therefore, slots 2 and 7 of slots 0 to 11 are slots for monitoring the PDCCH, and slots other than slots 2 and 7 of slots 0 to 11 are slots for not monitoring the PDCCH.

In this embodiment, the calculation of the accumulated value k starts from slot index0, and is performed for slot n for PDCCH detection_sIn other words, the accumulated value k is floor ((n)_s-offset)/M). According to this formula, in fig. 5, for a PDCCH monitoring opportunity corresponding to slot index 1, the accumulated value k is 0; for a PDCCH monitoring opportunity corresponding to slot index 6, an accumulated value k is 1;

According to the formula, the accumulated value k corresponding to the PDCCH monitoring time slot and the initial CCE index Yp, k of the USS search space corresponding to the PDCCH monitoring time slot can be obtained through calculation. After calculating Yp, k, further obtaining indexes of all CCEs in the USS search space according to the following formula;

And at the terminal side, accumulating the slot number of the PDCCH to be detected by the terminal to generate an accumulated value k, and calculating the index of the initial CCE of the search space by the terminal according to the accumulated value k and the RNTI. More specifically, the accumulated value k is obtained by accumulating the number of slots of the PDCCH to be detected, and only the slots of the monitored PDCCH are accumulated, but not the slots of the non-PDCCH detection slots, in the calculation of the accumulated value k, corresponding to a specific search space. For example, in fig. 5, in slots 0-11, for a certain search space, the terminal only needs to perform on slot1 and slot6And PDCCH blind detection is carried out, and on other slots, PDCCH blind detection is not required. Therefore, slots 1 and slot6 in slots 0 to 11 are slots for monitoring the PDCCH, and slots other than slots 1 and slots 6 in slots 0 to 11 are slots for not monitoring the PDCCH. In this embodiment, the calculation of the accumulated value k starts from slot index0, and is performed for slot n for PDCCH detection_sIn other words, the accumulated value k is floor ((n)_s-offset)/M). According to this formula, in fig. 5, for a PDCCH monitoring opportunity corresponding to slot index 1, the accumulated value k is 0; for a PDCCH monitoring opportunity corresponding to slot index 6, an accumulated value k is 1;

According to the formula, the accumulated value k corresponding to the PDCCH monitoring time slot and the initial CCE index Yp, k of the USS search space corresponding to the PDCCH monitoring time slot can be obtained through calculation. After calculating Yp, k, further obtaining the indexes of all CCEs in the USS search space according to the following formula

As for the fourth implementation manner, the method for determining search space resources of a physical downlink control channel provided by the present invention specifically includes:

the monitoring period of the search space is M slots, where M is 5 in this embodiment. Within one detection slot, there are N monitoring opportunities, N being 2 in this embodiment. As shown in FIG. 5, the offset of the first monitor slot relative to the slot of slot index0 is 2 slots. In addition, in the present embodiment, it is assumed that one slot includes 14 symbols, and each monitoring opportunity is composed of two OFDM symbols.

On the base station side, in this embodiment, the base station accumulates the monitoring opportunity number to generate an accumulated value k, and the base station calculates an index of the initial CCE of the search space according to the accumulated value k and the RNTI. More specifically, the accumulated value k is obtained by accumulating the number of detection opportunities, and in the calculation of the accumulated value k, not only the PDCCH monitoring opportunities on the slots where the PDCCH is monitored are accumulated, but also the PDCCH monitoring opportunities on the slots where the PDCCH is not detected are accumulated, corresponding to a specific search space. According to the foregoing description, the slot in which the PDCCH needs to be monitored includes N PDCCH monitoring opportunities, and therefore, for the slot in which the PDCCH is monitored or the slot in which the PDCCH is not monitored, N PDCCH monitoring opportunities need to be accumulated in the calculation of the accumulated value k for one slot. In fig. 5, in slots 0 to 11, for a certain search space, the terminal only needs to perform PDCCH blind detection on slot2 and slot7, and does not need to perform PDCCH blind detection on other slots. In this embodiment, the calculation of the accumulated value k starts from slot index0, and is performed for slot n for PDCCH detection_sFor the monitor opportunity index i numbered from zero, the accumulated value k is N × N_s+ i. According to this formula, in fig. 5, for a PDCCH monitoring opportunity numbered from zero in slot index2 with the i-th value of 0 (the monitoring opportunity number of this PDCCH monitoring opportunity in the slot is i-0), the accumulated value k is 4; for a PDCCH monitoring opportunity with the number i being 1 from zero in slot index2, the accumulated value k being 5; for a PDCCH monitoring opportunity with the number i being 1 from zero in slot index 7, the accumulated value k being 15;

after computing the accumulated value k, the starting CCE index Yp, k for a given USS search space is computed based on the accumulated value k and the RNTI, and Yp, k ═ Y_p,k＝(A_p·Y_p,k-1) mod D, in which Y_p,-1＝n_RNTI≠0， A₀＝39827，A₁＝39829，D＝65537，n_RNTIThe number of the RNTI is shown.

According to the formula, the nth can be calculated_sThe index of each slot from zero is i, and the cumulative value k corresponds to the PDCCH monitoring opportunity and the initial CCE index Yp, k of the USS search space corresponding to the monitoring opportunity. After calculating Yp, k, further obtaining the indexes of all CCEs in the USS search space according to the following formula

And at the terminal side, accumulating by the terminal according to the number of the monitoring opportunities to generate an accumulated value k, and calculating the index of the initial CCE of the search space by the terminal according to the accumulated value k and the RNTI. More specifically, the accumulated value k is obtained by accumulating the number of detection opportunities, and in the calculation of the accumulated value k, not only the accumulation of the monitoring opportunities on the slots in which the PDCCH is monitored but also the accumulation of the detection opportunities on the slots in which the PDCCH is not detected are performed, corresponding to a specific search space. According to the foregoing description, the slot in which the PDCCH needs to be monitored includes N PDCCH monitoring opportunities, and therefore, for both the slot in which the PDCCH is detected and the slot in which the PDCCH is not monitored, N detection opportunities need to be accumulated in the calculation of the accumulated value k for one slot. In fig. 5, in slots 0 to 11, for a certain search space, the terminal only needs to perform PDCCH blind detection on slot2 and slot7, and does not need to perform PDCCH blind detection on other slots. In this embodiment, the calculation of the accumulated value k starts from slotindex0, and is performed on the slotn for PDCCH detection_sFor the monitor opportunity index i numbered from zero, the accumulated value k is N × N_s+ i. According to this formula, in fig. 5, for the PDCCH monitoring opportunity with i being 0 numbered from zero in slot index2, the accumulated value k is 4; for the monitoring opportunity of the i-th which is numbered from zero in the slot index2, the accumulated value k is 5; for the monitoring opportunity of the i-th which is numbered from zero in the slot index 7, the accumulated value k is 15;

According to the formula, the nth can be calculated_sThe index of each slot from zero is i, and the cumulative value k corresponds to the PDCCH monitoring opportunity and the initial CCE index Yp, k of the USS search space corresponding to the monitoring opportunity. After calculating Yp, k, further, obtaining indexes of all CCEs in the USS search space according to the following formula;

Fig. 6 is a schematic structural diagram of an embodiment of a device for determining search space resources of a physical downlink control channel according to the present invention; as shown in fig. 6, the apparatus for determining search space resources of a physical downlink control channel provided in the present invention includes: a processing module 61 and a determination module 62, wherein,

a processing module 61, configured to obtain an accumulated value k according to attribute information of a physical downlink control channel PDCCH, where the attribute information at least includes any one of the following: information of OFDM symbols, information of monitoring opportunities, information of time slots;

and a determining module 62, configured to determine an index value of a control channel element CCE in the PDCCH search space according to the accumulated value k.

In this embodiment, an accumulated value k is obtained according to attribute information of a physical downlink control channel PDCCH, where the attribute information at least includes any one of: information of OFDM symbols, information of monitoring opportunities, information of time slots; and determining an index value of the CCE in the PDCCH search space according to the accumulated value k. The method and the device realize the determination of the initial control channel unit index of the USS with the monitoring period less than 1 time slot, and further avoid the monitoring conflict between two terminals in a search space under the scene of a plurality of PDCCH monitoring opportunities in the same time slot.

Further, on the basis of the foregoing embodiment, the processing module 61 is further configured to accumulate the OFDM symbols of each slot in the PDCCH to obtain the accumulated value.

Further, on the basis of the above embodiment, the information of the monitoring opportunity at least includes: monitoring an opportunity index value, wherein the information of the orthogonal frequency division multiplexing OFDM symbol at least comprises: the number of OFDM symbols, the information of the time slot at least comprises an index value of the time slot;

the processing module 61 is further configured to multiply the index value of the time slot by the number of OFDM symbols, add the obtained product to the monitoring opportunity index value, where the obtained sum is the accumulated value k, the number of OFDM symbols includes the number of OFDM symbols in the time slot, and the monitoring opportunity index value includes the index value of the monitoring opportunity in the current time slot.

Further, on the basis of the above embodiment, the processing module 61 is further configured to add the monitoring opportunities in each time slot to obtain the accumulated value k.

Further, on the basis of the above embodiment, the information of the timeslot at least includes: an index value of a slot, the information of the monitoring opportunity at least comprises: a monitoring opportunity index value and a monitoring opportunity number;

the processing module 61 is further configured to, when the monitoring period is less than or equal to 1 time slot, multiply an index value of the time slot by a monitoring opportunity number, add an obtained product to the monitoring opportunity index value in the time slot, and obtain a sum which is the accumulated value k, where the monitoring opportunity number includes the number of monitoring opportunities in each time slot; or,

Further, on the basis of the foregoing embodiment, the processing module 61 is further configured to accumulate the number of time slots in which the monitoring opportunity exists to obtain the accumulated value k, where the information of the time slots includes the number of time slots in which the monitoring opportunity exists.

Further, on the basis of the foregoing embodiment, the processing module 61 is further configured to subtract the index value of the timeslot from an offset value when the monitoring period is greater than 1 timeslot, obtain an integer as a result of dividing the difference value by the number of timeslots in the period, where the obtained integer is the accumulated value k, and the offset value includes an initial value of the monitoring period and an offset value of a timeslot having a monitoring opportunity.

Further, on the basis of the foregoing embodiment, the processing module 61 is further configured to, when the monitoring period is greater than 1 time slot, add and add the number of monitoring opportunities in each first type time slot and the preset number of monitoring opportunities in each second type time slot, where the obtained sum is the accumulated value k, the first type time slot includes a time slot in which a monitoring opportunity exists, the second type time slot includes a time slot in which a monitoring opportunity does not exist, and the preset number of monitoring opportunities is an integer value.

Further, on the basis of the above embodiment, the preset number of monitoring opportunities is equal to the number of monitoring opportunities in the first class of time slots.

Further, on the basis of the foregoing embodiment, the processing module 61 is further configured to bear the downlink control information DCI at the position identified by the index value of the CCE, that is, firstly determine the index values of all CCEs in the PDCCH search control space according to the index value of the initial CCE, and then bear the downlink control information DCI at least a part of the positions identified by the indexes of all CCEs.

Further, on the basis of the foregoing embodiment, the processing module 61 is further configured to monitor, according to the index value of the CCE, the downlink control information DCI on the PDCCH at the position identified by the index value of the CCE.

In this embodiment, a monitoring conflict between two terminals in a search space in a scenario where multiple PDCCH monitoring opportunities are in the same time slot is avoided.

The present invention also provides a terminal, which can execute the methods described in the above fig. 1-5.

The present invention also provides a base station, which can execute the methods described in the above fig. 1-5.

The invention also provides a communication system, which comprises the terminal and the base station.

The present invention also provides a storage medium comprising a stored program, wherein the program is operable to perform the method of fig. 1-5.

The present invention also provides a processor for executing a program, wherein the program executes the method described in fig. 1 to 5.

It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical units; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.

Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method for determining search space resources of a Physical Downlink Control Channel (PDCCH) comprises the following steps:

2. The method of claim 1, wherein the obtaining an accumulated value k according to attribute information of a Physical Downlink Control Channel (PDCCH) comprises:

3. The method of claim 2, wherein the information of the monitoring opportunity comprises at least: monitoring an opportunity index value, wherein the information of the orthogonal frequency division multiplexing OFDM symbol at least comprises: the number of OFDM symbols, the information of the time slot at least comprises an index value of the time slot;

4. The method of claim 1, wherein obtaining an accumulated value k comprises:

5. The method of claim 4, wherein the information of the time slot at least comprises: an index value of a slot, the information of the monitoring opportunity at least comprises: a monitoring opportunity index value and a monitoring opportunity number;

6. The method of claim 1, wherein obtaining an accumulated value k comprises:

7. The method of claim 6, wherein the information of the time slot comprises at least an index value of the time slot, and wherein the information of the time slot comprises at least: monitoring the number of time slots in a period;

8. The method of claim 1, wherein obtaining an accumulated value k comprises: when the monitoring period is greater than 1 time slot, adding the number of monitoring opportunities in each first type of time slot to the preset number of monitoring opportunities in each second type of time slot, wherein the obtained sum is the accumulated value k, the first type of time slot includes time slots with monitoring opportunities, the second type of time slot includes time slots without monitoring opportunities, the preset number of monitoring opportunities is an integer value, and the information of the monitoring opportunities at least includes: the number of monitoring opportunities.

9. The method of claim 8, wherein the preset number of monitoring opportunities is equal to the number of monitoring opportunities in the first class of time slots.

10. The method according to any of claims 1-9, wherein after determining index values of CCEs in PDCCH search space according to the accumulated value k, further comprising:

11. The method according to any of claims 1-9, wherein after determining index values of CCEs in PDCCH search space according to the accumulated value k, further comprising:

12. An apparatus for determining search space resources of a physical downlink control channel, comprising:

13. The apparatus of claim 1, wherein the processing module is further configured to accumulate OFDM symbols of each slot in the PDCCH to obtain the accumulated value.

14. The apparatus of claim 2, wherein the information of the monitoring opportunity comprises at least: monitoring an opportunity index value, wherein the information of the orthogonal frequency division multiplexing OFDM symbol at least comprises: the number of OFDM symbols, the information of the time slot at least comprises an index value of the time slot;

15. The apparatus of claim 12, wherein the processing module is further configured to add the monitoring opportunities in each time slot to obtain the accumulated value k.

16. The apparatus of claim 15, wherein the information of the timeslot comprises at least: an index value of a slot, the information of the monitoring opportunity at least comprises: a monitoring opportunity index value and a monitoring opportunity number;

17. The apparatus of claim 12, wherein the processing module is further configured to accumulate the number of slots in which there are monitoring opportunities to obtain the accumulated value k, and the information of the slots includes the number of slots in which there are monitoring opportunities.

18. The apparatus of claim 17, wherein the information of the slot comprises at least an index value of the slot, and wherein the information of the slot comprises at least: monitoring the number of time slots in a period;

19. The apparatus of claim 12, wherein the processing module is further configured to, when the monitoring period is greater than 1 time slot, add, cumulatively, a number of monitoring opportunities in each first type time slot and a preset number of monitoring opportunities in each second type time slot, where the sum obtained is the cumulative value k, the first type time slot includes a time slot in which a monitoring opportunity exists, the second type time slot includes a time slot in which a monitoring opportunity does not exist, the preset number of monitoring opportunities is an integer value, and the information of the monitoring opportunities at least includes: the number of monitoring opportunities.

20. The apparatus of claim 19, wherein the preset number of monitoring opportunities is equal to the number of monitoring opportunities in the first class of time slots.

21. The apparatus according to any of claims 12-20, wherein the processing module is further configured to carry downlink control information DCI at a location identified by the index value of the CCE according to the index value of the CCE.

22. The apparatus according to any of claims 12-20, wherein the processing module is further configured to monitor the PDCCH for downlink control information DCI at a location identified by the index value of the CCE according to the index value of the CCE.

23. A storage medium, comprising a stored program, wherein the program when executed performs the method of any one of claims 1 to 11.

24. A processor, configured to run a program, wherein the program when running performs the method of any one of claims 1 to 11.