CN110149180A

CN110149180A - The distribution method and terminal device of search space channel estimation number

Info

Publication number: CN110149180A
Application number: CN201810147557.6A
Authority: CN
Inventors: 纪子超; 潘学明
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-02-12
Filing date: 2018-02-12
Publication date: 2019-08-20
Anticipated expiration: 2038-02-12
Also published as: CN110149180B

Abstract

The invention discloses the distribution methods and terminal device of a kind of search space channel estimation number, this method comprises: carrying out the first distribution to the corresponding channel estimation number in the search space of terminal device if the sum of channel estimation number that all search spaces of terminal device need is more than the maximum channel estimative figure that terminal device is supported；Wherein, the sum of the channel estimation number that all search spaces need after the first distribution of terminal device progress is less than or equal to the maximum channel estimative figure that terminal device is supported.The embodiment of the present invention reallocates to the corresponding channel estimation number in search space when ordering by the way that the channel estimation number needed in terminal device is super, so that the sum of channel estimation number that all search spaces need is less than or equal to the maximum channel estimative figure that terminal device is supported, so as to make full use of the processing capacity of terminal device, maximize control resource allocation, it reduces control channel and distributes blocking probability, while guaranteeing the maximum channel estimative figure for being no more than terminal device.

Description

The distribution method and terminal device of search space channel estimation number

Technical field

The present invention relates to the communications field/field of terminal more particularly to a kind of distribution methods of search space channel estimation number And terminal device.

Background technique

In long term evolution (Long Term Evolution, LTE) system, user equipment (User Equipment, UE) is only Monitor a Physical Downlink Control Channel (physical downlink control channel, PDCCH) channel.At this In PDCCH, the PDCCH in the fixed search space of UE blind examination is candidate, and trial demodulates Downlink Control Information (downlink Control information, DCI) and the sum of blind examination PDCCH candidate be determining.PDCCH uses cell reference signals (Cell-specific reference signal, CRS) carries out channel estimation.Since CRS is that cell is specific, the channel of UE Estimate complexity not as blind examination quantity linearly increases.

5G NR system support be UE configure multiple control resource sets (control resource set, CORESET) and Multiple search spaces, and be each search space flexible configuration blind examination number, it can flexibly be closed between CORESET and search space Connection.On the other hand, the PDCCH of NR system supports the specific demodulated reference signal of UE (URS) to carry out channel estimation for UE.This Outside, in order to reduce the implementation complexity of UE, NR system alsies specify maximum channel estimative figure of the UE within the unit time, i.e., all The sum of channel estimation on search space is no more than the upper limit.

For the channel estimation of UE with control channel element (CCE) for unit, the PDCCH candidate for being assigned with identical CCE can be with Shared channel estimation results.In NR system, the PDCCH of different polymerization grades (aggregation level, AL) in search space Candidate position (number for being equivalent to the CCE that it is assigned to) is determined by pseudo-random function (hash function).Therefore, according to The Hash result of hash function, the candidate CCE possibility distributed of the PDCCH of different AL is identical may also be different.Therefore, different Time point, blind examination search space in total needed for channel estimation sum it is also different, and be possible to be more than UE support maximum channel Estimated number.

If according to required for (CCE for assuming that the candidate of different AL is distributed never is overlapped) under worst condition Channel estimation number configures search space, although may insure to be no more than the maximum channel estimative figure that UE is supported, can greatly reduce Allow the blind examination quantity configured, the system of will lead to can only use the maximum channel estimative figure supported much smaller than UE.This distribution side Formula cannot make full use of the ability of UE, greatly reduce the control resource utilization of system, improve control channel distribution obstruction Probability.

Summary of the invention

The purpose of the embodiment of the present invention is that the distribution method and terminal device of a kind of search space channel estimation number are provided, with The processing capacity of terminal device is made full use of, control resource allocation is maximized, control channel is reduced and distributes blocking probability, protect simultaneously Card is no more than the maximum channel estimative figure of terminal device.

In a first aspect, providing a kind of distribution method of search space channel estimation number, it is applied to terminal device, this method Include:

If the sum of channel estimation number that all search spaces of terminal device need is more than the maximum that terminal device is supported Channel estimation number then carries out the first distribution to the corresponding channel estimation number in the search space of terminal device；Wherein, the terminal device The sum of the channel estimation number that all search spaces need after the first distribution of progress is less than or equal to the maximum that terminal device is supported Channel estimation number.

Second aspect provides a kind of terminal device, which includes:

First distribution module, if the sum of channel estimation number that all search spaces of the terminal device need is more than terminal The maximum channel estimative figure that equipment is supported then carries out the first distribution to the corresponding channel estimation number in the search space of terminal device；

Wherein, the sum of the channel estimation number which carries out that all search spaces after the first distribution need be less than or The maximum channel estimative figure supported equal to terminal device.

The third aspect provides a kind of terminal device, which includes processor, memory and be stored in described deposit On reservoir and the computer program that can run on the processor, the computer program are realized when being executed by the processor The step of method as described in first aspect or the third aspect.

Fourth aspect provides a kind of computer readable storage medium, stores meter on the computer readable storage medium Calculation machine program realizes the step of the method as described in first aspect or the third aspect when computer program is executed by processor Suddenly.

The method of the embodiment of the present invention, can be realized it is following at least one the utility model has the advantages that

The corresponding channel estimation number in search space is carried out again when being ordered by the way that the channel estimation number needed in terminal device is super Distribution is estimated so that the sum of channel estimation number that all search spaces need is less than or equal to the maximum channel that terminal device is supported It counts, so as to make full use of the processing capacity of terminal device, maximizes control resource allocation, reduce control channel distribution resistance Probability is filled in, while guaranteeing the maximum channel estimative figure for being no more than terminal device.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 is the distribution method flow chart of one embodiment of the present of invention search space channel estimation number.

Fig. 2 is the candidate nonoverlapping schematic diagram of a scenario of search space PDCCH.

Fig. 3 is the schematic diagram of a scenario that search space PDCCH candidate has overlapping.

Fig. 4 is the distribution method flow chart of another embodiment of the invention search space channel estimation number.

Fig. 5 is the schematic diagram of a scenario of the PDCCH candidate allocation of one embodiment of the present of invention difference polymerization grade.

Fig. 6 is the structural schematic diagram of one embodiment of the present of invention terminal device.

Fig. 7 is the structural schematic diagram of the first distribution module of one embodiment of the present of invention.

Fig. 8 is the structural schematic diagram of the first distribution module of another embodiment of the invention.

Fig. 9 is the structural schematic diagram of another embodiment of the invention terminal device.

Figure 10 is the structural schematic diagram of the second distribution module of one embodiment of the present of invention.

Figure 11 is the structural schematic diagram of the second distribution module of another embodiment of the invention.

Figure 12 is the structural schematic diagram of the second distribution module of yet another embodiment of the present invention.

Figure 13 is the structural schematic diagram of yet another embodiment of the present invention terminal device.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.

Technical solution of the present invention can be applied to various communication systems, such as: global system for mobile communications (GSM, Global System of Mobile communication), CDMA (CDMA, Code Division Multiple Access) system, wideband code division multiple access (WCDMA, Wideband Code Division Multiple Access), general point Group wireless traffic (GPRS, General Packet Radio Service), long term evolution (LTE, Long Term Evolution)/enhancing long term evolution (LTE-A, Long Term Evolution advanced), NR (New Radio) etc..

User terminal (UE, User Equipment), also referred to as terminal device (Mobile Terminal), mobile use Family equipment etc., can through wireless access network (for example, RAN, Radio Access Network) and one or more core nets into Row communication, user equipment can be terminal device, such as mobile phone (or being " honeycomb " phone) and the meter with terminal device Calculation machine, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they and nothing Line access exchanges language and/or data.

Base station can be the base station (BTS, Base Transceiver Station) in GSM or CDMA, be also possible to Base station (NodeB) in WCDMA can also be evolved base station (eNB or e-NodeB, evolutional Node in LTE B) and the base station 5G (gNB), the present invention does not limit, but for convenience of description, and following embodiments are illustrated by taking gNB as an example.

The technical solution provided below in conjunction with attached drawing, each embodiment that the present invention will be described in detail.

Fig. 1 is the distribution method flow chart of one embodiment of the present of invention search space channel estimation number.The method of Fig. 1 can Applied to terminal device.This method comprises:

S101, if the sum of channel estimation number that all search spaces of terminal device need is more than what terminal device was supported Maximum channel estimative figure then carries out the first distribution to the corresponding channel estimation number in the search space of terminal device.

In the embodiment of the present invention, to the corresponding letter in search space when being ordered by the way that the channel estimation number needed in terminal device is super Road estimative figure is reallocated, so that the sum of channel estimation number that all search spaces need is less than or equal to terminal device branch The maximum channel estimative figure held maximizes control resource allocation, reduces so as to make full use of the processing capacity of terminal device Control channel distributes blocking probability, while guaranteeing the maximum channel estimative figure for being no more than terminal device.

It should be understood, of course, that in the embodiment of the present invention, in the channel estimation number and maximum letter that more all search spaces need It when road estimative figure, is compared in unit at the same time.For example, the channel that all search spaces of terminal device need is estimated It counts, refers to the channel estimation number that all search spaces of terminal device in a chronomere need.What terminal device was supported Maximum channel estimative figure also refers to the maximum channel estimative figure that terminal device is supported in a chronomere.Time herein Unit, can be subframe, time slot or symbol etc., the embodiment of the present invention to this with no restriction.

For ease of understanding, it is described below with reference to the method for Fig. 2, Fig. 3 to the embodiment of the present invention.Wherein, Fig. 2 is search The candidate nonoverlapping schematic diagram of a scenario of space PDCCH, wherein hatched example areas numbered entry is PDCCH candidate.Fig. 3 is search space PDCCH candidate has the schematic diagram of a scenario of overlapping, and wherein hatched example areas numbered entry is PDCCH candidate.

Optionally, step S101 specifically can be achieved are as follows:

The first distribution is carried out based on the corresponding channel estimation number in search space of first parameter to terminal device；

Wherein, which includes following at least one:

DCI format, the number of candidates of search space, end of PDCCH candidate carrying in search space type, search space The candidate sum of the PDCCH of all search spaces of end equipment, the scheduling type of PDCCH candidate, PDCCH candidate type of service, Channel estimation number, the listening period of search space needed for search space, the priority of search space, in search space The DCI size of PDCCH candidate carrying.

For example, can be determined according to the candidate sum of the PDCCH of search space type and all search spaces of terminal device The first distribution how is carried out, or first distribution of progress, etc. is determined how according to the priority of search space.

Optionally, in some embodiments, based on the corresponding channel estimation in search space of first parameter to terminal device Number carries out the first distribution, may be implemented are as follows:

Based on first parameter, priority ranking is carried out to unit search space；

According to priority orders, reduce the channel estimation number of the low unit search space of priority, until all search are empty Between the sum of the channel estimation number that needs be less than or equal to the maximum channel estimative figure.

For example, it is assumed that the first parameter includes search space type.Wherein, network side equipment is that UE is configured with two search skies Between, one is public search space, and one is the specific search space UE, and each search space has different period and PDCCH to wait Arrangement.

UE can be based on search space type, carry out priority ranking to search space, determine public search space priority Preceding, the specific search space priority of UE is rear.

When UE needs two search spaces of blind examination (i.e. search space is overlapped in time) in the same time slot, and needs Channel estimation number when being more than the maximum channel estimative figure of UE, channel estimation number needed for UE preferentially meets public search space, Remaining channel estimation number is distributed into the specific search space UE again.That is, UE first reduces the specific search space the low UE of priority Channel estimation number, until the sum of channel estimation number that all search spaces need is less than or equal to the maximum channel estimative figure；Such as The channel estimation number of the specific search space fruit UE the sum of the channel estimation number that all search spaces need when being 0 is still greater than the maximum Channel estimation number then reduces the channel estimation number of public search space.

It should be understood that in the embodiment of the present invention, by carrying out channel estimation number based on the corresponding priority in unit search space Distribution, so that the distribution of channel estimation number can guarantee the demand of the high unit search space of priority.

It should be understood that in embodiments of the present invention, unit search space may include a search space；Alternatively, unit is searched for Space includes a search space group, includes multiple search spaces in the search space group；Alternatively, unit search space Ke Bao Include the associated all search spaces a CORESET.

Based on first parameter, the scaling of the corresponding unit search space of each first parameter is determined；

Based on the scaling of constituent parts search space, the channel estimation number of constituent parts search space is distributed, until all The sum of channel estimation number of search space is less than or equal to the maximum channel estimative figure.

For example, it is again assumed that the first parameter includes search space type.Wherein, network side equipment is that UE is configured with two UE Specific search space, each search space have different period and PDCCH candidate to configure.

When UE needs two search spaces of blind examination (i.e. search space is overlapped in time) in the same time slot, and needs Channel estimation number when being more than the maximum channel estimative figure of UE, it is assumed that channel estimation number needed for the S1 of search space is C1, search Channel estimation number needed for space S 2 is C2, and the maximum channel estimative figure that UE is supported is M, and C1+C2 > M.

UE is according to formulaCalculate separately the scaling of S1 and S2；

UE scales the channel estimation number of S1 and S2 according to scaling.

Optionally, UE can according to the channel estimation number of scaling linear scale S1 and S2,

It should be understood that in the embodiment of the present invention, by being zoomed in and out based on the corresponding scaling in unit search space, thus So that the distribution of channel estimation number can take into account the equilibrium of constituent parts search space.

It should be understood that in embodiments of the present invention, unit search space may include a search space；Alternatively, unit is searched for Space includes a search space group, includes multiple search spaces in the rope spatial group；Alternatively, the unit search space may include The associated all search spaces one CORESET.

Fig. 4 is the distribution method flow chart of another embodiment of the invention search space channel estimation number.Optionally, such as Shown in Fig. 4, after step slol, this method may also include that

S102, if the channel estimation number that the target unit search space of terminal device needs is more than the first channel estimation Number carries out the second distribution to the corresponding channel estimation number in the target unit search space.

Wherein, the first channel estimation number is the channel estimation number that network side equipment is target unit search space configuration, Either the terminal device is that target unit search space carries out the channel estimation number obtained after first distribution；

Carry out target unit search space after the second distribution the sum of second channel estimative figure be less than or equal to this first Channel estimation number.

It is more than net by the channel estimation number needed in the target unit search space of terminal device in the embodiment of the present invention Network side apparatus is the channel estimation number of target unit search space configuration, and to the target unit search space, corresponding channel is estimated Counting is reallocated, and so as to make full use of the processing capacity of terminal device, is maximized control resource allocation, is reduced control Channel distribution blocking probability, while guaranteeing the channel estimation number for being no more than network side equipment configuration.

Further, step S102 specifically can be achieved are as follows:

The second distribution is carried out to the corresponding channel estimation number in the target unit search space based on the second parameter；

Wherein, which includes following at least one:

The polymerization grade of PDCCH candidate, the scheduling type of PDCCH candidate, PDCCH candidate type of service, scheduled Cell or carrier type, the subcarrier spacing of scheduled cell or carrier wave, PDCCH candidate carrying in search space DCI Format, search space PDCCH number of candidates.

Optionally, in some embodiments, based on the second parameter to the corresponding channel estimation in target unit search space Number carries out the second distribution, it may include:

Based on second parameter, priority ranking is carried out to the PDCCH candidate of the target unit search space；

The low PDCCH of loss priority is candidate, until the channel estimation number of the target unit search space is less than or equal to The first channel estimation number.

For example, it is assumed that the second parameter includes scheduled cell type.Assuming that network side equipment is that be configured with UE specific by UE Main plot and secondary cell are dispatched simultaneously in search space, the search space.

UE can determine that the priority of the PDCCH candidate of main plot is higher than the priority of the PDCCH candidate of secondary cell.

If UE is assigned to the channel estimation number of the search space at a certain moment, own less than in the blind examination search space The candidate required channel estimation number of PDCCH, then UE can preferentially meet the candidate required channel estimation number of scheduling main plot PDCCH, The PDCCH that remaining channel estimation number is distributed to scheduling secondary cell again is candidate.

Optionally, in some embodiments, step S102 specifically can be achieved are as follows:

The PDCCH candidate of the target unit search space is divided into multiple PDCCH candidate collections according to polymerization grade；

Determine that PDCCH is candidate in each PDCCH candidate collection based on the candidate corresponding control channel Elements C CE number of PDCCH Discarding sequence；

In the way of multiple PDCCH candidate collection polls, one by one in multiple PDCCH candidate collections by discarding sequence preceding PDCCH candidate abandon, until the target unit search space channel estimation number be less than or equal to the first channel estimation number.

For example, it is assumed that network is that UE is configured with the specific search space UE, wherein the blind examination number of AL-4 is the blind of 2, AL-2 Examining the blind examination number that number is 4, AL-1 is 4.

If UE is assigned to the maximum channel estimative figure of the search space at a certain moment, less than institute in the blind examination search space When having the candidate required channel estimation number of PDCCH, then UE can be by AL from small to large, and the sequential selection of CCE number from small to large is lost It is candidate to abandon PDCCH.For example, first abandoning a CCE numbers the PDCCH candidate of the smallest AL-1, then abandon a CCE number minimum AL-2 PDCCH it is candidate, and so on, if the PDCCH without bigger AL is candidate, again since AL-1.Always Until required channel estimation number is less than and is assigned to the maximum channel estimative figure of the search space.

Determine the candidate corresponding CCE of the PDCCH of each polymerization grade in the target unit search space；

Classify to the PDCCH candidate in each polymerization grade in the target unit search space, wherein the first kind The candidate corresponding CCE of PDCCH not with it is other in the associated control resource set CORESET in the target unit search space The candidate corresponding CCE overlapping of PDCCH, the PDCCH candidate of Second Type and the PDCCH candidate of lower polymerization grade share CCE, The PDCCH candidate of third type and the PDCCH candidate of higher polymerization grade share CCE；

Circulation executes following steps to adjust over-expense channel estimation number, until over-expense channel estimation number is less than or equal to zero:

It determines the equivalent channel estimative figure of each PDCCH candidate in the target unit search space, and determines over-expense channel Estimative figure, wherein the over-expense channel estimation number is equal to target unit search space channel estimation number actually required and subtracts this First channel estimation number；

Selection target PDCCH is waited from the PDCCH of the first kind of the target unit search space or Second Type candidate It selects and abandons；

The over-expense channel estimation number is subtracted into the candidate corresponding equivalent channel estimative figure of target PDCCH, after adjustment The over-expense channel estimation number.

It should be understood that in embodiments of the present invention, sorted PDCCH candidate can be divided into the first kind, Second Type and the Three type three classes.

It should be understood that in embodiments of the present invention, there may be one or more search spaces on a CORESET, at this point, The CORESET is the associated CORESET in the one or more search space.

It should be understood that the candidate corresponding CCE of PDCCH, it may include the CCE of PDCCH candidate allocation or occupancy.

It should be understood, of course, that the PDCCH of the above-mentioned first kind is candidate, also it is readily modified as meeting following condition:

The candidate corresponding CCE of the PDCCH of the first kind is not corresponding with other PDCCH candidates of the target unit search space CCE overlapping.

Further, it is determined that in the target unit search space each PDCCH candidate equivalent channel estimative figure, comprising:

By the polymerization grade of the first PDCCH candidate of the first kind, the equivalent channel for being determined as the first PDCCH candidate is estimated It counts；

It is not associated with the target unit search space by in the CCE of the 2nd PDCCH candidate allocation of Second Type The CCE quantity of other PDCCH candidates overlapping of CORESET, is determined as the equivalent channel estimative figure of the 2nd PDCCH candidate；

Determine that the equivalent channel estimative figure of the 3rd PDCCH candidate of third type is determined as 0.

Of course, it is also possible to there are it is determined that the scheme of the equivalent channel estimative figure of PDCCH candidate, the embodiment of the present invention exist This will not enumerate.

It should be understood that the selection target from the PDCCH of the first kind of the target unit search space or Second Type candidate The scheme of PDCCH candidate, can be it is predefined, such as defined in agreement or network side configuration, the embodiment of the present invention It is not limited thereto.

For example, the selection target from the PDCCH of the first kind of the target unit search space or Second Type candidate PDCCH is candidate and abandons, it may include:

The alternately selection target from the PDCCH of the first kind of the target unit search space or Second Type candidate PDCCH is candidate and abandons；

Alternatively, selection target PDCCH is candidate from the PDCCH candidate of the first kind of the target unit search space and loses It abandons, when the PDCCH candidate of the first kind of the target unit search space is empty, from the second of the target unit search space Selection target PDCCH is candidate in the PDCCH candidate of type and abandons；

Alternatively, selection target PDCCH is candidate from the PDCCH candidate of the Second Type of the target unit search space and loses It abandons, when the PDCCH candidate of the first kind of the target unit search space is empty, from the first of the target unit search space Selection target PDCCH is candidate in the PDCCH candidate of type and abandons；

Alternatively, from the PDCCH of the first kind of the target unit search space or Second Type candidate, preferential selection etc. The PDCCH candidate for imitating channel estimation number closest to the over-expense channel estimation number is candidate as target PDCCH.

It should be understood, of course, that as the PDCCH candidate that there are multiple closest to the over-expense channel estimation number, according to polymerization etc. Grade sequence from small to large is from multiple closest to selecting target PDCCH to wait in the PDCCH of over-expense channel estimation number candidate Choosing；When closest to the over-expense channel estimation number PDCCH candidate in there are when the minimum PDCCH candidate of multiple polymerization grades, press According to the sequence of the candidate corresponding CCE number of PDCCH, in the PDCCH candidate minimum from multiple polymerization grade, CCE number is selected Maximum or the smallest PDCCH candidate is candidate as target PDCCH.

For ease of understanding, it is illustrated below with reference to Fig. 5.Fig. 5 is another embodiment of the invention difference polymerization grade PDCCH candidate allocation schematic diagram of a scenario.

Step 1. assume to be determined according to the hash function of search space the blind examination of certain moment each AL it is candidate distribute (or Occupy) CCE it is as shown in Figure 5.

Blind examination candidate is divided into three classes by step 2., wherein blind examination candidate 3,6 is the first kind, and blind examination candidate 1 is the second class Type, blind examination candidate 2,4,5 are third type.

Step 3. calculates the equivalent channel estimative figure (EC) of each blind examination candidate, wherein the EC=2 of blind examination candidate 3, blind examination The EC=1 of candidate 6；The EC=1 of blind examination candidate 1；The EC=0 of blind examination candidate 2,4,5.

Step 4. selects according to over-expense channel estimation number (X) and abandons blind examination candidate.Wherein, it if X=2, selects blind Inspection candidate 3；If X=1, blind examination candidate 6 or 1 is selected.Preferentially select the blind examination of low AL candidate, i.e. blind examination candidate 6.

It should be understood that in embodiments of the present invention, which can be with, including a search space；Alternatively, The target unit search space can include a search space group, include multiple search spaces in the search space group；Alternatively, should Target unit search space may include the associated all search spaces a CORESET.

Fig. 6 is the structural schematic diagram of one embodiment of the present of invention terminal device 600.As shown in fig. 6, terminal device 600 Can include:

First distribution module 610, if the sum of the channel estimation number that all search spaces of the terminal device need is more than The maximum channel estimative figure that terminal device is supported then carries out first point to the corresponding channel estimation number in the search space of terminal device Match；

Further, which is specifically used for:

Wherein, which includes following at least one:

The Downlink Control Information DCI format of PDCCH candidate carrying in search space type, search space, search space Physical downlink control channel PDCCH number of candidates, terminal device the candidate sum of PDCCH, the PDCCH of all search spaces wait Channel estimation number needed for the scheduling type of choosing, the type of service of PDCCH candidate, search space, search space listening period, The DCI size of PDCCH candidate carrying in the priority of search space, search space.

Fig. 7 is the structural schematic diagram of the first distribution module of one embodiment of the present of invention.Optionally, in some embodiments In, the first distribution module 610 of terminal device 600 can be as shown in fig. 7, first distribution module 610 includes:

First sorting sub-module 611 is based on first parameter, carries out priority ranking to unit search space；

First distribution sub module 612 reduces the channel estimation of the low unit search space of priority according to priority orders Number, until the sum of channel estimation number that all search spaces need is less than or equal to the maximum channel estimative figure.

Fig. 8 is the structural schematic diagram of the first distribution module of another embodiment of the invention.Optionally, in some embodiments In, the first distribution module 610 of terminal device 600 can be as shown in figure 8, first distribution module 610 includes:

First determines submodule 613, is based on first parameter, determines the scaling of the constituent parts search space of the terminal device Ratio；

Second distribution sub module 614 distributes the letter of constituent parts search space based on the scaling of constituent parts search space Road estimative figure, until the sum of channel estimation number of all search spaces is less than or equal to the maximum channel estimative figure.

Fig. 9 is the structural schematic diagram of another embodiment of the invention terminal device.Optionally, in some embodiments, Terminal device 600 may also include that

Second distribution module 620, if the channel estimation number that needs of the target unit search space of terminal device is more than the One channel estimation number carries out the second distribution to the corresponding channel estimation number in the target unit search space,

Further, which is specifically used for:

Wherein, which includes following at least one:

Figure 10 is the structural schematic diagram of the second distribution module of one embodiment of the present of invention.Optionally, in some embodiments In, the second distribution module 620 of terminal device 600 can be as shown in Figure 10, which includes:

Second sorting sub-module 621 is based on second parameter, carries out to the PDCCH candidate of the target unit search space Priority ranking；

Third distribution sub module 622, the low PDCCH of loss priority is candidate, until the letter of the target unit search space Road estimative figure is less than or equal to the first channel estimation number.

Figure 11 is the structural schematic diagram of the second distribution module of another embodiment of the invention.Optionally, in some implementations In example, the second distribution module 620 of terminal device 600 can be as shown in Figure 10, which includes:

Submodule 623 is divided, is divided into the PDCCH candidate of the target unit search space according to polymerization grade multiple PDCCH candidate collection；

Second determines submodule 624, determines that each PDCCH is waited based on the candidate corresponding control channel Elements C CE number of PDCCH The discarding sequence of PDCCH candidate in selected works conjunction；

4th distribution sub module 625, in the way of multiple PDCCH candidate collection polls, one by one in multiple PDCCH Candidate Sets The preceding PDCCH candidate of discarding sequence is abandoned in conjunction, until the channel estimation number of the target unit search space is less than or waits In the first channel estimation number.

Figure 12 is the structural schematic diagram of the second distribution module of yet another embodiment of the present invention.Optionally, in some implementations In example, the second distribution module 620 of terminal device 600 can be as shown in Figure 10, which includes:

Third determines submodule 626, determines that the PDCCH candidate of each polymerization grade in the target unit search space is corresponding CCE；

Classification submodule 627, divides the PDCCH candidate in each polymerization grade in the target unit search space Class, wherein the candidate corresponding CCE of the PDCCH of the first kind not with the associated control resource set in the target unit search space The candidate corresponding CCE overlapping of other PDCCH in CORESET, PDCCH candidate and the lower polymerization grade of Second Type PDCCH candidate shares CCE, and the PDCCH candidate of third type and the PDCCH candidate of higher polymerization grade share CCE；

4th determines submodule 628, determines the equivalent channel estimation of each PDCCH candidate in the target unit search space Number, and determine over-expense channel estimation number, wherein it is actually required that the over-expense channel estimation number is equal to the target unit search space Channel estimation number subtracts the first channel estimation number；

5th distribution sub module 629, it is candidate from the first kind of the target unit search space or the PDCCH of Second Type Middle selection target PDCCH is candidate and abandons；

The over-expense channel estimation number is subtracted the candidate corresponding equivalent channel of target PDCCH and estimated by adjusting submodule 630 Number, as the over-expense channel estimation number adjusted；

6th distribution sub module 631, recursive call the 4th determine submodule, the 5th distribution sub module and adjusting submodule, Overspend channel estimation number with adjustment, until over-expense channel estimation number is less than or equal to zero.

Further, the 4th determine that submodule 628 is specifically used for:

Optionally, which includes a search space；Alternatively, the target unit search space includes One search space group includes multiple search spaces in the search space group；Alternatively, the target unit search space includes one The associated all search spaces CORESET.

Terminal device 600 can also carry out the method that terminal device or UE are executed in Fig. 1 or embodiment illustrated in fig. 4, specific real It now can refer to Fig. 1, embodiment illustrated in fig. 4, details are not described herein for the embodiment of the present invention.

A kind of hardware structural diagram of Figure 13 terminal device of each embodiment to realize the present invention.The terminal device 1300 include but is not limited to: radio frequency unit 1301, network module 1302, audio output unit 1303, input unit 1304, sensing Device 1305, display unit 1306, user input unit 1307, interface unit 1308, memory 1309, processor 1310 and The components such as power supply 1311.It will be understood by those skilled in the art that the not structure paired terminal of terminal device structure shown in Figure 13 The restriction of equipment, terminal device may include perhaps combining certain components or different than illustrating more or fewer components Component layout.In embodiments of the present invention, terminal device includes but is not limited to mobile phone, tablet computer, laptop, palm electricity Brain, car-mounted terminal, wearable device and pedometer etc..

Wherein, processor 1310 are used for:

If the sum of channel estimation number that all search spaces of UE need more than the maximum channel estimative figure that UE is supported, First distribution is carried out to the corresponding channel estimation number in the search space of UE；

Wherein, the sum of the channel estimation number that all search spaces of UE need after the first distribution is less than or equal to UE and supports Maximum channel estimative figure.

It should be understood that the embodiment of the present invention in, radio frequency unit 1301 can be used for receiving and sending messages or communication process in, signal Send and receive, specifically, by from base station downlink data receive after, to processor 1310 handle；In addition, by uplink Data are sent to base station.In general, radio frequency unit 1301 includes but is not limited to antenna, at least one amplifier, transceiver, coupling Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 1301 can also by wireless communication system and network and other Equipment communication.

Terminal device provides wireless broadband internet by network module 1302 for user and accesses, and such as user is helped to receive It sends e-mails, browse webpage and access streaming video etc..

Audio output unit 1303 can be received by radio frequency unit 1301 or network module 1302 or in memory The audio data stored in 1309 is converted into audio signal and exports to be sound.Moreover, audio output unit 1303 can be with Audio output relevant to the specific function that terminal device 1300 executes is provided (for example, call signal receives sound, message sink Sound etc.).Audio output unit 1303 includes loudspeaker, buzzer and receiver etc..

Input unit 1304 is for receiving audio or video signal.Input unit 1304 may include graphics processor (Graphics Processing Unit, GPU) 13041 and microphone 13042, graphics processor 13041 are captured in video In mode or image capture mode by image capture apparatus (such as camera) obtain static images or video image data into Row processing.Treated, and picture frame may be displayed on display unit 1306.Through treated the picture frame of graphics processor 13041 It can store in memory 1309 (or other storage mediums) or carried out via radio frequency unit 1301 or network module 1302 It sends.Microphone 13042 can receive sound, and can be audio data by such acoustic processing.Audio that treated Data can be converted to the lattice that mobile communication base station can be sent to via radio frequency unit 1301 in the case where telephone calling model Formula output.

Terminal device 1300 further includes at least one sensor 1305, for example, optical sensor, motion sensor and other Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to ring The light and shade of border light adjusts the brightness of display panel 13061, proximity sensor can when terminal device 1300 is moved in one's ear, Close display panel 13061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions The size of (generally three axis) acceleration, can detect that size and the direction of gravity, can be used to identify terminal device appearance when static State (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) Deng；Sensor 1305 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, gas Meter, hygrometer, thermometer, infrared sensor etc. are pressed, details are not described herein.

Display unit 1306 is for showing information input by user or being supplied to the information of user.Display unit 1306 can Including display panel 13061, liquid crystal display (Liquid Crystal Display, LCD), organic light-emitting diodes can be used Forms such as (Organic Light-Emitting Diode, OLED) are managed to configure display panel 13061.

User input unit 1307 can be used for receiving the number or character information of input, and generate the use with terminal device Family setting and the related key signals input of function control.Specifically, user input unit 1307 include touch panel 13071 with And other input equipments 13072.Touch panel 13071, also referred to as touch screen collect the touch behaviour of user on it or nearby Make (for example user uses any suitable objects or attachment such as finger, stylus on touch panel 13071 or in touch panel Operation near 13071).Touch panel 13071 may include both touch detecting apparatus and touch controller.Wherein, it touches The touch orientation of detection device detection user is touched, and detects touch operation bring signal, transmits a signal to touch controller； Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 1310, It receives the order that processor 1310 is sent and is executed.Furthermore, it is possible to using resistance-type, condenser type, infrared ray and surface The multiple types such as sound wave realize touch panel 13071.In addition to touch panel 13071, user input unit 1307 can also include Other input equipments 13072.Specifically, other input equipments 13072 can include but is not limited to physical keyboard, function key (ratio Such as volume control button, switch key), trace ball, mouse, operating stick, details are not described herein.

Further, touch panel 13071 can be covered on display panel 13061, when touch panel 13071 detects After touch operation on or near it, processor 1310 is sent to determine the type of touch event, is followed by subsequent processing device 1310 Corresponding visual output is provided on display panel 13061 according to the type of touch event.Although in Figure 13, touch panel 13071 and display panel 13061 are the functions that outputs and inputs of realizing terminal device as two independent components, but In some embodiments, touch panel 13071 can be integrated with display panel 13061 and realize outputting and inputting for terminal device Function, specifically herein without limitation.

Interface unit 1308 is the interface that external device (ED) is connect with terminal device 1300.For example, external device (ED) may include Wired or wireless headphone port, external power supply (or battery charger) port, wired or wireless data port, storage card Port, port, the port audio input/output (I/O), video i/o port, earphone for connecting the device with identification module Port etc..Interface unit 1308 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED) simultaneously And by one or more elements that the input received is transferred in terminal device 1300 or it can be used in terminal device Data are transmitted between 1300 and external device (ED).

Memory 1309 can be used for storing software program and various data.Memory 1309 can mainly include storage program Area and storage data area, wherein storing program area can application program needed for storage program area, at least one function (such as Sound-playing function, image player function etc.) etc.；Storage data area, which can be stored, uses created data (ratio according to mobile phone Such as audio data, phone directory) etc..In addition, memory 1309 may include high-speed random access memory, it can also include non- Volatile memory, for example, at least a disk memory, flush memory device or other volatile solid-state parts.

Processor 1310 is the control centre of terminal device, utilizes each of various interfaces and the entire terminal device of connection A part by running or execute the software program and/or module that are stored in memory 1309, and calls and is stored in storage Data in device 1309 execute the various functions and processing data of terminal device, to carry out integral monitoring to terminal device.Place Managing device 1310 may include one or more processing units；Preferably, processor 1310 can integrate application processor and modulation /demodulation Processor, wherein the main processing operation system of application processor, user interface and application program etc., modem processor master Handle wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 1310.

Terminal device 1300 can also include the power supply 1311 (such as battery) powered to all parts, it is preferred that power supply 1311 can be logically contiguous by power-supply management system and processor 1310, to realize that management is filled by power-supply management system The functions such as electricity, electric discharge and power managed.

In addition, terminal device 1300 includes some unshowned functional modules, details are not described herein.

Preferably, the embodiment of the present invention also provides a kind of terminal device, including processor 1310, memory 1309, storage On memory 1309 and the computer program that can run on the processor 1310, the computer program is by processor 1310 Each process of the embodiment of the method for above-mentioned Fig. 1 or Fig. 4 is realized when execution, and can reach identical technical effect, to avoid weight Multiple, which is not described herein again.

The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium Calculation machine program, the computer program realize each process of the embodiment of the method for above-mentioned Fig. 1 or Fig. 4 when being executed by processor, and Identical technical effect can be reached, to avoid repeating, which is not described herein again.Wherein, the computer readable storage medium, such as Read-only memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc..

It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do There is also other identical elements in the process, method of element, article or device.

Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art The part contributed out can be embodied in the form of software products, which is stored in a storage medium In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.

The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much Form belongs within protection of the invention.

Claims

1. a kind of distribution method of search space channel estimation number characterized by comprising

If the sum of channel estimation number that all search spaces of terminal device need is more than the maximum channel that terminal device is supported Estimative figure then carries out the first distribution to the corresponding channel estimation number in the search space of terminal device；

Wherein, the sum of the channel estimation number that all search spaces of terminal device need after the first distribution is less than or equal to terminal The maximum channel estimative figure that equipment is supported.

2. the method as described in claim 1, which is characterized in that the corresponding channel estimation number in the search space of terminal device into Row first distributes, comprising:

Wherein, first parameter includes following at least one:

The object of Downlink Control Information DCI format, search space that PDCCH candidate in search space type, search space carries Manage down control channel PDCCH number of candidates, terminal device all search spaces the candidate sum of PDCCH, PDCCH it is candidate Channel estimation number needed for scheduling type, the type of service of PDCCH candidate, search space, the listening period of search space, search The DCI size of PDCCH candidate carrying in the priority in space, search space.

3. method according to claim 2, which is characterized in that

The first distribution is carried out based on the corresponding channel estimation number in search space of first parameter to terminal device, comprising:

According to priority orders, reduce the channel estimation number of the low unit search space of priority, until all search spaces need The sum of channel estimation number wanted is less than or equal to the maximum channel estimative figure.

4. the method as described in claim 1, which is characterized in that

Based on first parameter, the scaling of the constituent parts search space of the terminal device is determined；

Based on the scaling of constituent parts search space, the channel estimation number of constituent parts search space is distributed, until all search The sum of the channel estimation number in space is less than or equal to the maximum channel estimative figure.

5. such as method of any of claims 1-4, which is characterized in that

The unit search space includes a search space；Or

The unit search space includes a search space group, includes multiple search spaces in described search spatial group；Or

The unit search space includes the associated all search spaces a CORESET.

6. method according to any one of claims 1 to 5, which is characterized in that the method also includes:

If the channel estimation number that the target unit search space of terminal device needs is more than the first channel estimation number, to the mesh It marks the corresponding channel estimation number in unit search space and carries out the second distribution,

Wherein, the first channel estimation number is the channel estimation number that network side equipment is target unit search space configuration, or Person is that the terminal device is that target unit search space carries out the channel estimation number obtained after first distribution；

The sum of the second channel estimative figure of target unit search space is less than or equal to first letter after the second distribution of progress Road estimative figure.

7. method as claimed in claim 6, which is characterized in that

Second distribution is carried out to the corresponding channel estimation number in the target unit search space, comprising:

Wherein, second parameter includes following at least one:

The polymerization grade of PDCCH candidate, the scheduling type of PDCCH candidate, PDCCH candidate type of service, scheduled cell Or carrier type, the subcarrier spacing of scheduled cell or carrier wave, PDCCH candidate carrying in search space DCI format, The PDCCH number of candidates of search space.

8. the method for claim 7, which is characterized in that

The second distribution is carried out to the corresponding channel estimation number in the target unit search space based on the second parameter, comprising:

The low PDCCH of loss priority is candidate, until the channel estimation number of the target unit search space is less than or equal to institute State the first channel estimation number.

9. the method for claim 7, which is characterized in that

The discarding sequence of PDCCH candidate in each PDCCH candidate collection is determined based on the candidate corresponding CCE number of PDCCH；

It is in multiple PDCCH candidate collections that discarding sequence is preceding one by one in the way of multiple PDCCH candidate collection polls PDCCH candidate abandons, until the channel estimation number of the target unit search space is less than or equal to first channel estimation Number.

10. the method for claim 7, which is characterized in that

It determines the equivalent channel estimative figure of each PDCCH candidate in the target unit search space, and determines that over-expense channel is estimated It counts, wherein the over-expense channel estimation number is equal to target unit search space channel estimation number actually required and subtracts The first channel estimation number；

Selection target PDCCH is candidate from the PDCCH of the first kind of the target unit search space or Second Type candidate And it abandons；

The over-expense channel estimation number is subtracted into the candidate corresponding equivalent channel estimative figure of the target PDCCH, after adjustment The over-expense channel estimation number.

11. method as claimed in claim 10, which is characterized in that

Determine the equivalent channel estimative figure of each PDCCH candidate in the target unit search space, comprising:

By the polymerization grade of the first PDCCH candidate of the first kind, it is determined as the equivalent channel estimation of the first PDCCH candidate Number；

12. the method as described in any one of claim 6-11, which is characterized in that

The target unit search space includes a search space；Or

The target unit search space includes a search space group, includes multiple search spaces in described search spatial group； Or

The target unit search space includes the associated all search spaces a CORESET.

13. a kind of terminal device, which is characterized in that be applied to terminal device, comprising:

First distribution module, if the sum of the channel estimation number that all search spaces of the terminal device need is set more than terminal The standby maximum channel estimative figure supported then carries out the first distribution to the corresponding channel estimation number in the search space of terminal device；

Wherein, the sum of the channel estimation number that all search spaces need after first distribution of terminal device progress is less than or waits In the maximum channel estimative figure that terminal device is supported.

14. terminal device as claimed in claim 13, which is characterized in that first distribution module is specifically used for:

Wherein, first parameter includes following at least one:

15. terminal device as claimed in claim 14, which is characterized in that first distribution module includes:

First sorting sub-module is based on first parameter, carries out priority ranking to unit search space；

First distribution sub module reduces the channel estimation number of the low unit search space of priority according to priority orders, until The sum of channel estimation number that all search spaces need is less than or equal to the maximum channel estimative figure.

16. terminal device as claimed in claim 13, which is characterized in that first distribution module includes:

First determines submodule, is based on first parameter, determines the pantograph ratio of the constituent parts search space of the terminal device Example；

Second distribution sub module distributes the channel estimation of constituent parts search space based on the scaling of constituent parts search space Number, until the sum of channel estimation number of all search spaces is less than or equal to the maximum channel estimative figure.

17. the terminal device as described in any one of claim 13-16, which is characterized in that

The unit search space includes a search space；Or

The unit search space includes the associated all search spaces a CORESET.

18. the terminal device as described in any one of claim 13-17, which is characterized in that the terminal device further include:

Second distribution module, if the channel estimation number that the target unit search space of terminal device needs is more than that the first channel is estimated It counts, the second distribution is carried out to the corresponding channel estimation number in the target unit search space,

19. terminal device as claimed in claim 18, which is characterized in that second distribution module is specifically used for:

Wherein, second parameter includes following at least one:

20. terminal device as claimed in claim 19, which is characterized in that

Second distribution module includes:

Second sorting sub-module is based on second parameter, carries out to the PDCCH candidate of the target unit search space preferential Grade sequence；

Third distribution sub module, the low PDCCH of loss priority is candidate, until the channel estimation of the target unit search space Number is less than or equal to the first channel estimation number.

21. terminal device as claimed in claim 18, which is characterized in that second distribution module includes:

Submodule is divided, the PDCCH candidate of the target unit search space is divided into multiple PDCCH according to polymerization grade and is waited Selected works close；

Second determines submodule, determines each PDCCH candidate collection based on the candidate corresponding control channel Elements C CE number of PDCCH The discarding sequence of middle PDCCH candidate；

4th distribution sub module one by one will in multiple PDCCH candidate collections in the way of multiple PDCCH candidate collection polls The preceding PDCCH candidate of discarding sequence abandons, until the channel estimation number of the target unit search space is less than or equal to institute State the first channel estimation number.

22. terminal device as claimed in claim 18, which is characterized in that second distribution module includes:

Third determines submodule, determines that the PDCCH candidate of each polymerization grade in the target unit search space is corresponding CCE；

Classification submodule, classifies to the PDCCH candidate in each polymerization grade in the target unit search space, In, the candidate corresponding CCE of the PDCCH of the first kind not with the associated control resource set in the target unit search space The candidate corresponding CCE overlapping of other PDCCH in CORESET, PDCCH candidate and the lower polymerization grade of Second Type PDCCH candidate shares CCE, and the PDCCH candidate of third type and the PDCCH candidate of higher polymerization grade share CCE；

4th determines submodule, determines the equivalent channel estimative figure of each PDCCH candidate in the target unit search space, and Determine over-expense channel estimation number, wherein it is actually required that the over-expense channel estimation number is equal to the target unit search space Channel estimation number subtracts the first channel estimation number；

5th distribution sub module is selected from the PDCCH of the first kind of the target unit search space or Second Type candidate It selects target PDCCH candidate and abandons；

The over-expense channel estimation number is subtracted the candidate corresponding equivalent channel estimative figure of the target PDCCH by adjusting submodule, As the over-expense channel estimation number adjusted；

6th distribution sub module, recursive call the 4th determine submodule, the 5th distribution sub module and adjusting submodule, super to adjust Branch channel estimation number, until over-expense channel estimation number is less than or equal to zero.

23. terminal device as claimed in claim 22, which is characterized in that

4th determines that submodule is specifically used for:

24. the terminal device as described in any one of claim 13-23, which is characterized in that

The target unit search space includes a search space；Or

25. a kind of terminal device characterized by comprising memory, processor and be stored on the memory and can be in institute State the computer program run on processor, when the computer program is executed by the processor realize as claim 1 to The step of method described in any one of 12.

26. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium Program, the step of method as described in any one of claims 1 to 12 is realized when the computer program is executed by processor.