CN109286983A - A kind of method and device of determining search space - Google Patents
A kind of method and device of determining search space Download PDFInfo
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- CN109286983A CN109286983A CN201710600450.8A CN201710600450A CN109286983A CN 109286983 A CN109286983 A CN 109286983A CN 201710600450 A CN201710600450 A CN 201710600450A CN 109286983 A CN109286983 A CN 109286983A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The embodiment of the present invention provides a kind of method and device of determining search space, this method comprises: obtaining the ability rating information of user terminal, which is used to indicate the subband numerical value M that user terminal can be supported, wherein M is the integer more than or equal to 1；According to the working condition of subband numerical value M and the user terminal, the search space of user terminal is determined.The device includes: acquiring unit, and for obtaining the ability rating information of user terminal, which is used to indicate the subband numerical value M that user terminal can be supported, wherein M is the integer more than or equal to 1；Determination unit determines the search space of user terminal according to the working condition of subband numerical value M and the user terminal.Method and apparatus provided in an embodiment of the present invention, search space flexibility and changeability, the bandwidth ability of adaptive terminal.
Description
Technical field
The present embodiments relate to the communications field more particularly to a kind of method and devices of determining search space.
Background technique
In broadband access system (abbreviation system) based on TD-LTE technology, system available bandwidth be divided into it is multiple continuous or
Discrete subband uses orthogonal frequency division multiplexing (OFDM) technical transmission on each subband.One typical application scenarios is electricity
The radio bandwidth access network of Force system, abbreviation TD-LTE230 network, frequency spectrum it is discrete be distributed in 230M frequency range, bandwidth is
8.15MHz.Fig. 4 is electric system 230MHz band frequency resource distribution schematic diagram, as shown in figure 4, sharing the son of 40 25kHz
Band, the subband of minimum frequency point are 223.525MHz, and the subband of highest frequency point is 231.65MHz.
In broadband access system based on TD-LTE technology, PDCCH (Physical Downlink Control Channel) is system resource allocation
With the core of control message scheduling, information (Downlink Control Information, DCI) is controlled for bearing downlink,
Including information such as descending scheduling distribution and uplink scheduling authorizations.
However, the DCI information for receiving PDCCH transmission is a pretty troublesome thing for UE (user terminal), because
What information do not know current PDCCH transmission for UE is, do not know yet oneself information needed where, it is therefore necessary to adopt
Take the mode of blind examination.So-called blind examination refers to that, for different expectation information, UE is gone and CCE (PDCCH occupancy with corresponding X-RNTI
The minimum unit of resource) information does CRC check, if CRC check success, UE are known that this information is oneself needs
, it is also known that corresponding DCI format, to further solve DCI content.Here it is so-called " blind examination " processes.
Search space (SS, Search Space) is made of, UE several groups candidate control channel (PDCCH candidate)
Search space is monitored, and carries out blind examination in search space, to detect and oneself respective impact control channel.Have
Two kinds of search space: one is public search space (UE-common Search Space), i.e., all UE will be supervised
The search space listened, what is carried thereon is and system information (SI, System information), random access (RA, Random
Access) respond and page (Paging) relevant public information；Another kind is the dedicated search space (UE- of UE
Specific Search Space), wherein what is carried is the uplink and downlink scheduling authorization information of UE itself.
In the prior art, the design method of search space is distributed in search space in whole bandwidth ranges of system,
Therefore it is required that UE must also have the ability for monitoring full bandwidth, the user only to work in the continuous subband of list band or part is not supported
Terminal improves the cost of user terminal.
Summary of the invention
It does not support only to work to solve existing search space and be asked in the user terminal of the continuous subband of list band or part
Topic, the embodiment of the present invention provide a kind of method and device of determining search space.
In a first aspect, the embodiment of the present invention provides a kind of method of determining search space, this method comprises:
The ability rating information of user terminal is obtained, the ability rating information is used to indicate the user terminal and can prop up
The subband numerical value M held, wherein M is the integer more than or equal to 1；
According to the working condition of the subband numerical value M and the user terminal, the search space of the user terminal is determined.
Second aspect, the embodiment of the present invention also provide a kind of device of determining search space, which includes:
Acquiring unit, for obtaining the ability rating information of user terminal, the ability rating information is used to indicate described
The subband numerical value M that user terminal can be supported, wherein M is the integer more than or equal to 1；
Determination unit determines the user terminal according to the working condition of the subband numerical value M and the user terminal
Search space.
The third aspect, the embodiment of the present invention provide a kind of electronic equipment, which includes: memory and processor,
The processor and the memory complete mutual communication by bus；The memory is stored with can be by the processor
The program instruction of execution, the processor call described program instruction to be able to carry out following method: obtaining the ability of user terminal
Class information, the ability rating information are used to indicate the subband numerical value M that the user terminal can be supported, wherein M be greater than
Integer equal to 1；According to the working condition of the subband numerical value M and the user terminal, the search of the user terminal is determined
Space.
Fourth aspect, the embodiment of the present invention provide a kind of computer readable storage medium, are stored thereon with computer program,
The computer program realizes following method when being executed by processor: obtaining the ability rating information of user terminal, the ability
Class information is used to indicate the subband numerical value M that the user terminal can be supported, wherein M is the integer more than or equal to 1；According to institute
The working condition for stating subband numerical value M and the user terminal determines the search space of the user terminal.
The method and device of determining search space provided in an embodiment of the present invention, passes through the ability rating according to user terminal
Information determines the search space of the user terminal, search space flexibility and changeability, to reach in conjunction with the working condition of user terminal
To the user terminal for supporting different bandwidth capabilities, the bandwidth ability of adaptive terminal reduces terminal cost；Further, since search is empty
Between flexibility and changeability, on the one hand, the blind examination number for reducing user terminal improves the working efficiency of user terminal；On the other hand,
System can also optimize making for system resource according to the utilization power of band resource, the band resource of reasonable distribution search space
With rate.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of the method for determining search space provided in an embodiment of the present invention；
Fig. 2 is a kind of device of determining search space provided in an embodiment of the present invention；
Fig. 3 is the structural block diagram of a kind of electronic equipment provided in an embodiment of the present invention；
Fig. 4 is electric system 230MHz band frequency resource distribution schematic diagram in the prior art.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
In the embodiment of the present invention, TD-LTE broadband system is divided by multiple subbands continuously or discontinuously based on bandwidth,
Subband refers to frequency point, i.e. an a frequency point i.e. subband.In general, it determines search space, that is, determines the position letter of search space
The length information of breath and search space, and the length information of search space includes: size and search of the search space on frequency domain
The size of space in the time domain.
The size of search space in the time domain is related with the repetition of PDCCH needed for user terminal transmission times.System can root
PDCCH is determined and adjusted according to the parameter for reflecting channel quality that user terminal measurement reports and repeats transmission times, to improve
PDCCH transmission performance is adapted to the terminal of different covering demands.It is allocated to terminal by RRC signaling, and can be matched by DCI
It sets dynamic to adjust, the method for determining the size of search space in the time domain can use the prior art, and details are not described herein again.This
The method for the determination search space that inventive embodiments provide is intended to determine size of the search space on frequency domain and its on frequency domain
Location information.
Fig. 1 is a kind of flow diagram of the method for determining search space provided in an embodiment of the present invention.As shown in Figure 1,
Method includes the following steps:
Step S101, the ability rating information of user terminal is obtained, the ability rating information is used to indicate the user
The subband numerical value M that terminal can be supported, wherein M is the integer more than or equal to 1；
Specifically, user terminal is stored with the ability rating information of itself, and user terminal in the random access procedure can be to
Base station reports the ability rating information of itself, which is used to indicate the sub-band number that the user terminal can be supported
Value M, wherein M is the integer more than or equal to 1.For example, showing that user terminal is only capable of work in list band if M=1；If M=3,
Show that user terminal can choose and at most takes work in 3 sons.For the convenience of description, the embodiment of the present invention is arranged, it is only capable of
The user terminal of list band work is list band user terminal；If M is greater than 1, corresponding user terminal is that multi-subband user is whole
End namely M subband user terminal.For user terminal after the ability rating information for reporting itself, base station obtains the energy of user terminal
Power class information.
Step S102, according to the working condition of the subband numerical value M and the user terminal, the user terminal is determined
Search space.
Specifically, search space includes the starting subband position of search space and the length of search space.Base station is true
When determining the search space of user terminal, need to determine the starting subband position and its length value of the search space respectively.The present invention
In embodiment, the minimum unit of search space length is subband.Base station is according to the subband numerical value M and the work shape of the user terminal
State can determine position and its length of search space, so that it is determined that the search space of the user terminal.
The method of determining search space provided in an embodiment of the present invention, base station according to the ability rating of user terminal by believing
Breath, in conjunction with the working condition of user terminal, determines the search space of the user terminal, search space flexibility and changeability, to reach
Support the user terminal of different bandwidth capabilities, the bandwidth ability of adaptive terminal reduces terminal cost；Further, since search space
Flexibility and changeability, on the one hand, the blind examination number for reducing user terminal improves the working efficiency of user terminal；On the other hand, base
System resource can also be optimized according to the utilization power of band system band resource, the band resource of reasonable distribution search space by standing
Utilization rate.
On the basis of the above embodiments, the working condition in this method includes: resident state and data transmission state.
Specifically, resident state and data transmission state refer both to user terminal and are under RRC connection status, the difference of the two
It is that resident state refers to that user terminal up-downlink direction is in DRX unactivated state or activation to dispatch state, data pass
Defeated state then refers to that the up direction of user terminal or down direction are in the working condition of transmission data.
The method of determining search space provided in an embodiment of the present invention, base station pass through two kinds of work shapes according to user terminal
State, designs search space, and different working conditions corresponds to different search spaces.It thus can be according to the specific of user terminal
Situation concrete analysis, can rationally save band resource and reduce the blind examination number of user terminal, improve the work of user terminal
Make efficiency.
The work according to the subband numerical value M and user terminal on the basis of the various embodiments described above, in this method
Make state, determine the search space of the user terminal, comprising:
If user terminal is in resident state, described search space is residence sub-band.
Specifically, residence sub-band refers in the random access procedure, and base station is user terminal distribution, with fixed position
List band.It is one-to-many relationship between residence sub-band and user terminal, base station can be distributed same for multiple user terminals
Residence sub-band, and for each user terminal, residence sub-band is determining, therefore the user terminal can be based on being somebody's turn to do
Determining residence sub-band scans for.
If user terminal is in data transmission state, described search space is with the starting of last data transmission band
Subband is starting subband, and with the N times of continuous subband for length of the subband numerical value M, wherein N is the integer more than or equal to 1.
Specifically, data transmission band refers to subband used in user terminal transmission data.The position of data transmission band is
It is determined according to the received DCI information of the user terminal, base station is configured by DCI, and indicating user terminal transmits the son of data
Band position, and this time data transmission band starting subband be then user terminal receive next time DCI when, the search of user terminal
The starting subband of the starting subband in space, i.e. search space is the starting subband of last data transmission band, search space
Starting subband position changes with the variation of data transmission band.And the length of search space is then the integer of subband numerical value
Times, according to above-mentioned starting subband and length so that it is determined that search space.In the embodiment of the present invention, each subband in system full bandwidth
There is subband number, in order to express easily, subband position is indicated with subband number, continuous subband refers to the adjacent multiple subbands of subband number.
The method of determining search space provided in an embodiment of the present invention, base station pass through two kinds of work shapes according to user terminal
State, designs search space, and different working conditions corresponds to different search spaces.It thus can be according to the specific of user terminal
Situation concrete analysis, can rationally save band resource and reduce the blind examination number of user terminal, improve the work of user terminal
Make efficiency.
On the basis of the above embodiments, the M of subband numerical value described in this method is 1, then N is 1；If the subband numerical value M
More than or equal to 2, then N is 2.
Specifically, if user terminal is in data transmission state, user terminal is list band user terminal, then described search
Data transmission band when space is last transmission data；User terminal is M subband user, then described search space is upper one
The starting subband of secondary data transmission subband is starting subband, optional with 2 times of continuous subbands for length of the subband numerical value M
Ground, same search space include two equal-sized candidate resource positions, support the uplink and downlink of same user, Huo Zheshang
Two users of row user and downlink user work at the same time.
For example, a list band user terminal, if being in resident state, search space is residence sub-band, it is assumed that
Base station is the subband that the residence sub-band of user terminal distribution is number 1 when random access, and therefore, which receives for the first time
The search space of DCI is subband 1.If first time DCI indicates subband 2 of the list with user terminal transmission data, base station is true
The search space that the fixed user terminal receives second of DCI is subband 2；If second of DCI indicates the list, band user terminal is passed
The subband 3 of transmission of data, then the search space that base station determines that the user terminal receives third time DCI is that subband 3 namely list band are used
Data transmission band when the search space of family terminal is last data transmission.
For example, a 3 subband user terminals, if being in resident state, search space is residence sub-band, it is assumed that with
Base station is the subband that the residence sub-band of user terminal distribution is number 3 when machine accesses, and therefore, which receives for the first time
The search space of DCI is subband 3.If first time DCI indicates that the subband of 3 subband user terminal transmission data is 4,5, base station
Determine that the user terminal receives the search space of second of DCI to be starting subband is searched for using 6 subbands as length with subband 4
Space is continuous subband 4-9；If second of DCI indicate subband position that the 3 subband user terminal carries out data transmission be 10,
11,12, then base station determines that the user terminal receives the search space of third time DCI to be starting subband with subband 10, with 6 subbands
For length, i.e., search space is continuous subband 10-15 namely the search space of multi-subband user terminal is with data transmission band
Variation and change.
The method of determining search space provided in an embodiment of the present invention, search space flexibility and changeability, on the one hand, reduce use
The blind examination number of family terminal, improves the working efficiency of user terminal；On the other hand, system can also be according to the utilization of band resource
Situation, the band resource of reasonable distribution search space optimize the utilization rate of system resource.
On the basis of the various embodiments described above, this method further include: if judgement knows that N times of the subband numerical value M is greater than
Preset threshold, then the length in described search space is preset threshold, and the preset threshold is used to indicate the length in described search space
The maximum value of degree.
Specifically, preset threshold can be configured according to the ability of system requirements and user terminal, which takes
Being worth range is { 2, P }, wherein P is the maximum even number less than system full bandwidth value, and system full bandwidth value refers to that system is drawn according to bandwidth
It is divided into multiple subbands, the sum of all subbands is system full bandwidth value.If the ability rating of user terminal is very high, i.e., user is whole
When holding the sub-band number supported very big, the length of search space is also to have maximum value.According to the length for determining search space
It is M × N that method, which obtains length, and base station is by the way that M × N to be compared with preset threshold, if judgement is learnt, which is greater than pre-
If threshold value, then the length of the search space is redefined.
For example, a 20 subband user terminals, if N=2, the length of search space is 40 subbands, work as preset threshold
When for 16 subband, it is evident that 40 > 16, then the length of its search space is 16 subbands, rather than 40 subbands.
On the basis of the above embodiments, this method further include: according to whether to user terminal send uplink authorization and/
Or the DCI information of downstream grants, determine the working condition of user terminal.
Specifically, if base station does not also send downlink to user terminal to the DCI information that user terminal sends uplink authorization
The DCI information of authorization, then user terminal is in resident state；If base station to user terminal have sent uplink authorization and/or under
The DCI information of row authorization, then user terminal is in data transmission state.
Fig. 2 is a kind of device of determining search space provided in an embodiment of the present invention, as shown in Fig. 2, the device includes: to obtain
Take unit 201 and determination unit 202.Wherein, acquiring unit 201 is used to obtain the ability rating information of user terminal, the energy
Power class information is used to indicate the subband numerical value M that the user terminal can be supported, wherein M is the integer more than or equal to 1；It determines
Unit 202 determines the search space of the user terminal according to the working condition of the subband numerical value M and the user terminal.
Specifically, user terminal is stored with the ability rating information of itself, user terminal in the random access procedure can on
The ability rating information of itself is reported, acquiring unit 201 obtains the ability rating information that user terminal reports；Determination unit 202
According to the working condition of ability rating information and user terminal at this time, the search space of the user terminal is determined.The present invention is real
The device for applying example offer is in order to realize that above method embodiment, function specifically refer to above method embodiment, herein
It repeats no more.
The device of determining search space provided in an embodiment of the present invention, determination unit are whole based on the user that acquiring unit obtains
The ability rating information at end, and the working condition of user terminal is combined, the final search space for determining user terminal.Therefore, should
Device can support the user terminal of different bandwidth capabilities, reduce terminal cost；In addition, the working condition in conjunction with user is further
Search space is designed, the length of the search space under different working condition is different, therefore reduces the blind examination number of user terminal,
Improve the working efficiency of user terminal.
On the basis of the above embodiments, the working condition in the device includes: resident state and data transmission shape
State.
On the basis of the various embodiments described above, the determination unit in the device is specifically included:
If user terminal is in resident state, described search space is residence sub-band；
If user terminal is in data transmission state, described search space is with the starting of last data transmission band
Subband is starting subband, and with the N times of continuous subband for length of the subband numerical value M, wherein N is the integer more than or equal to 1.
Specifically, either list is with user terminal or multi-subband user terminal, if user terminal is in resident state,
Determination unit be the user terminal determine search space be random access procedure for its distribution, have unique fixed bit
The list band set.If user terminal is in data transmission state, the user terminal that determination unit is obtained based on acquiring unit
Ability rating information determine its search space in conjunction with the working condition of user terminal.Device provided in an embodiment of the present invention
It is to realize that above method embodiment, function specifically refer to above method embodiment, details are not described herein again.
The device of determining search space provided in an embodiment of the present invention, by two kinds of working conditions according to user terminal,
Search space is designed, different working conditions corresponds to different search spaces.It thus can be according to the specific feelings of user terminal
Condition concrete analysis, can rationally save band resource and reduce the blind examination number of user terminal, improve the work of user terminal
Efficiency.
On the basis of the various embodiments described above, in the device, if the subband numerical value M is 1, N 1；If the subband
Numerical value M is more than or equal to 2, then N is 2.
Specifically, if user terminal is in data transmission state, acquiring unit learns that user terminal is that list band user is whole
End, determination unit then think data transmission band when its search space is last transmission data；If acquiring unit learns use
Family terminal is M subband user, and determination unit then thinks that its search space is that the starting subband of last data transmission band is
Beginning subband, with 2 times of continuous subbands for length of the subband numerical value M.Device provided in an embodiment of the present invention is to realize
Above method embodiment, function specifically refers to above method embodiment, and details are not described herein again.
The device of determining search space provided in an embodiment of the present invention, search space are flexibility and changeabilities, can be supported not
The user terminal of ad eundem, and according to the working condition of user terminal, length and the position of its search space is adjusted flexibly, thus
The reasonable employment of each band resource of realization system improves the working efficiency of system and user terminal both sides.
On the basis of the various embodiments described above, the device further include: judging unit 203 (do not show that) in Fig. 2, the judgement
If unit judgement knows that N times of the subband numerical value M is greater than preset threshold, the length in described search space is preset threshold,
The preset threshold is used to indicate the maximum value of the length in described search space.
Specifically, if acquiring unit learns that the ability rating of user terminal is very high, i.e. the sub-band number M of user terminal support is very
When big, determination unit determine search space length be M × N, judging unit by comparing both the length and preset threshold it
Between size, if the length is not above preset threshold, the length of search space is M × N；If the length is greater than the default threshold
Value, then the length of search space is the preset threshold, and the value range of the preset threshold is { 2, P }, wherein P is less than being
Unite full bandwidth value maximum even number, system full bandwidth value refer to system according to bandwidth partition be multiple subbands, the sum of all subbands
As system full bandwidth value.Device provided in an embodiment of the present invention is to realize that above method embodiment, function are specific
It can refer to above method embodiment, details are not described herein again.
On the basis of the various embodiments described above, the device further include: state cell 204 (do not show that) in Fig. 2, the state
Unit 204 determines that the user is whole according to whether to user terminal transmission uplink authorization and/or the DCI information of downstream grants
The working condition at end.
Specifically, if base station does not send the DCI information of uplink authorization to user terminal, the DCI letter of downstream grants is also sent
Breath, state cell then think that user terminal is in resident state；If base station to user terminal have sent uplink authorization and/or under
The DCI information of row authorization, state cell then think that user terminal is in data transmission state.Determination unit is obtained according to acquiring unit
The judging result of the ability rating information and state cell that take determines the search space of the user terminal.
Optionally it is determined that unit is after determining the length of search space, judging unit compares the length and preset threshold
Size, according to judging unit as a result, the length of search space is determined again, according to the length of the search space and starting subband
Position, determination unit determine the search space of user terminal.Device provided in an embodiment of the present invention is to realize the above method
Embodiment, function specifically refers to above method embodiment, and details are not described herein again.
The device of determining search space provided in an embodiment of the present invention, the judging result based on state cell, concrete condition
Concrete analysis, search space is flexibility and changeability, different grades of user terminal can be supported, according to the work shape of user terminal
State, can be adjusted flexibly length and the position of its search space, to realize the reasonable employment of each band resource of system, improve system
With the working efficiency of user terminal both sides.
Fig. 3 is the structural block diagram of a kind of electronic equipment provided in an embodiment of the present invention.Referring to Fig. 3, the electronic equipment, packet
It includes: processor (processor) 301, memory (memory) 302 and bus 303；Wherein, it the processor 301 and described deposits
Reservoir 302 completes mutual communication by the bus 303；The processor 301 is for calling in the memory 302
Program instruction, to execute method provided by above-mentioned each method embodiment, for example, obtain the ability rating letter of user terminal
Breath, the ability rating information are used to indicate the subband numerical value M that the user terminal can be supported, wherein M is more than or equal to 1
Integer；According to the working condition of the subband numerical value M and the user terminal, the search space of the user terminal is determined.
The embodiment of the present invention also provides a kind of computer program product, and the computer program product is non-temporary including being stored in
Computer program on state computer readable storage medium, the computer program include program instruction, when described program instructs
When being computer-executed, computer is able to carry out method provided by above-mentioned each method embodiment, for example, it is whole to obtain user
The ability rating information at end, the ability rating information are used to indicate the subband numerical value M that the user terminal can be supported, wherein
M is the integer more than or equal to 1；According to the working condition of the subband numerical value M and the user terminal, the user terminal is determined
Search space.
The embodiment of the present invention also provides a kind of computer readable storage medium, the computer-readable recording medium storage meter
The instruction of calculation machine, the computer instruction make the computer execute method provided by above-mentioned each method embodiment, for example,
The ability rating information of user terminal is obtained, the ability rating information is used to indicate the subband that the user terminal can be supported
Numerical value M, wherein M is the integer more than or equal to 1；According to the working condition of the subband numerical value M and the user terminal, institute is determined
State the search space of user terminal.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of method of determining search space characterized by comprising
The ability rating information of user terminal is obtained, the ability rating information is used to indicate what the user terminal can be supported
Subband numerical value M, wherein M is the integer more than or equal to 1；
According to the working condition of the subband numerical value M and the user terminal, the search space of the user terminal is determined.
2. the method according to claim 1, wherein the working condition includes: resident state and data transmission
State.
3. according to the method described in claim 2, it is characterized in that, described according to the subband numerical value M and the user terminal
Working condition, determine the search space of the user terminal, comprising:
If user terminal is in resident state, described search space is residence sub-band；
If user terminal is in data transmission state, described search space is with the starting subband of last data transmission band
To originate subband, with the N times of continuous subband for length of the subband numerical value M, wherein N is the integer more than or equal to 1.
4. according to the method described in claim 3, it is characterized in that, if the subband numerical value M is 1, N 1；
If the subband numerical value M is more than or equal to 2, N 2.
5. the method according to claim 3 or 4, which is characterized in that further include:
If judgement knows that N times of the subband numerical value M is greater than preset threshold, the length in described search space is preset threshold,
The preset threshold is used to indicate the maximum value of the length in described search space.
6. the method according to claim 1, wherein further include:
According to whether sending the DCI information of uplink authorization and/or downstream grants to user terminal, the user terminal is determined
Working condition.
7. a kind of device of determining search space characterized by comprising
Acquiring unit, for obtaining the ability rating information of user terminal, the ability rating information is used to indicate the user
The subband numerical value M that terminal can be supported, wherein M is the integer more than or equal to 1；
Determination unit determines the search of the user terminal according to the working condition of the subband numerical value M and the user terminal
Space.
8. the apparatus according to claim 1, which is characterized in that the working condition includes: resident state and data transmission
State.
9. a kind of electronic equipment characterized by comprising
Memory and processor, the processor and the memory complete mutual communication by bus；The memory
It is stored with the program instruction that can be executed by the processor, the processor calls described program instruction to be able to carry out right such as and wants
Seek 1 to 6 any method.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The method as described in claim 1 to 6 is any is realized when being executed by processor.
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| CN109286983B (en) | 2023-08-08 |
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