CN109729573A - A kind of method and device for transmitting Downlink Control Information - Google Patents

A kind of method and device for transmitting Downlink Control Information Download PDF

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Publication number
CN109729573A
CN109729573A CN201810136994.8A CN201810136994A CN109729573A CN 109729573 A CN109729573 A CN 109729573A CN 201810136994 A CN201810136994 A CN 201810136994A CN 109729573 A CN109729573 A CN 109729573A
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user equipment
dci
transmission cycle
group
pdcch resource
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CN109729573B (en
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丁志明
庄宏成
杜振国
韩云博
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN202111154639.1A priority Critical patent/CN114040476B/en
Priority to CN202111149915.5A priority patent/CN114040475A/en
Priority to PCT/CN2018/111454 priority patent/WO2019080839A1/en
Publication of CN109729573A publication Critical patent/CN109729573A/en
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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

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Abstract

This application discloses it is a kind of transmit Downlink Control Information method and device, to solve in the prior art user equipment detect base station be sent to the Downlink Control Information of the user equipment itself when, the big problem of power consumption.This method comprises: user equipment is in inscribed the first instruction information for receiving base station and sending in the setting resource of physical downlink control channel PDCCH resource-area of a transmission cycle；The user equipment judges to whether there is the DCI in the PDCCH resource area in the transmission cycle according to the first instruction information；If it is described first instruction information instruction in the transmission cycle in the PDCCH resource area there are the DCI, the user equipment detects the DCI in the corresponding search space of user equipment described in the PDCCH resource area in the transmission cycle；If the first instruction information indicates that the DCI is not present in the transmission cycle in the PDCCH resource area, the user equipment detects the DCI in the PDCCH resource area not in the transmission cycle.

Description

A kind of method and device for transmitting Downlink Control Information
This application claims submission on October 27th, 2017 Patent Office of the People's Republic of China, application No. is 201711056899.9, invention The priority of the Chinese patent application of entitled " a kind of downlink data transmission method and equipment ", entire contents pass through reference knot It closes in this application.
Technical field
This application involves information technology field more particularly to a kind of method and devices for transmitting Downlink Control Information.
Background technique
In long term evolution (Long Term Evolution, LTE), Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) it is used for transmission the Downlink Control Information (Downlink that base station is sent to UE Control Information, DCI).One DCI is transmitted in a PDCCH, and PDCCH is transmitted in PDCCH resource area, PDCCH resource area includes numerous control information units (Control Channel Element, CCE), base station (Base Station, BS) it is selected according to the size of DCI and the transmission reliability of needs in 1 CCE, 2 CCE, 4 CCE or 8 CCE On carry out transmitting the DCI, the quantity of CCE used in a PDCCH is known as polymerization grade (Aggregation Level, AL).
In order to improve resource utilization, fixed PDCCH resource is not prepared in LTE for each UE, therefore UE and do not know Ground knows that any one DCI of oneself can be transmitted on which specific resource location, and UE must be searched in certain scope of resource can The DCI (being properly termed as target DCI, which can have one or more target DCI) can be existing or oneself expected, such money Source range is known as search space.PDCCH resource area includes the specific search space USS of public search space CSS and UE.The money of CSS Source position is fixed.USS determines that the USS of different UE may according to a radio network temporary identifier C-RNTI and subframe numbers of UE It can overlap even completely overlapped.
In LTE, PDCCH resource area includes numerous PDCCH resource unit CCE.BS is according to the size of DCI and the biography of needs DCI is transmitted in the selection of defeated reliability on 1 CCE, 2 CCE, 4 CCE or 8 CCE, i.e. a PDCCH may include 1,2, 4 or 8 CCE.The quantity of CCE used in one PDCCH is known as polymerization grade AL, such as is equal to 1 using AL when 1 CCE, It is equal to 4 using AL when 4 CCE.The same DCI, the AL value that when transmission uses is bigger, and reliability is higher, the resource occupied certainly Also more.BS, can be according to circumstances it is determined that the AL value used when transmitting DCI to UE, and combines the transmission of the DCI of other UE Situation determines a suitable location transmission DCI in the USS of the UE.The less DCI of partial bit number may also be passed in CSS It is defeated.If a DCI is transmitted in CSS, it is 4 or 8 that AL, which is used only,.In this way, UE needed when receiving DCI USS even can The DCI of reception oneself is attempted on position that can be different in CSS, and may need to be tasted in each possible AL value Examination, this process are known as searching for.
One DCI includes payload (payload) the i.e. effective information and scrambled CRC code of DCI in transmission.Wherein Just whether CRC code is that 16 bit informations generated are calculated using CRC algorithm to payload, for the received information of receiving end verification institute Really.CRC code using one it is relevant to DCI be all 16 bits RNTI scrambling (specially XOR operation), then DCI through volume It is transmitted on PDCCH (according to AL, 1 CCE or 2 CCE etc. may be occupied) after code, rate-matched.UE is receiving a PDCCH That need to transmit on detection PDCCH afterwards is any DCI, then needs to know the size (size) of the payload of target DCI to be detected That is size is inputed to decoder by bit number, and decoder exports decoded result according to the size of input.Decoded result Payload comprising DCI and scrambled CRC code, UE calculates CRC code to payload part, using the corresponding RNTI of target DCI to calculating CRC code scrambling out, then by scrambled CRC code compared with the scrambled CRC code in decoding result, if the two it is equal (or With), then explanation has received the target DCI, if the two is unequal, if also need detection to have simultaneously has with the target DCI Identical payload size but the different another target DCI of corresponding RNTI then detect institute using the corresponding RNTI of another target DCI Whether decoded result is another target DCI.If it is corresponding to attempt all each target DCI with same payload size The scrambled CRC code being unable in matching and decoding result after RNTI needs weight if also needing to detect the DCI of other payload sizes New payload size newly is inputted to decoder to decode again, repeats aforementioned activities.Different DCI's is attempted to a PDCCH Payload size, this process are known as blind examination.A decoding process is all undergone in each blind examination, and decoding process has compared with intensive, disappears Consume more electricity.UE is in order to receive DCI oneself expectation or that detection may occur at any time, in the different position in search space It sets, carry out blind examination using different AL, it may be necessary to which a large amount of blind examination number can just receive a target DCI or exhaustive maximum A target DCI is not received after blind examination number yet.The USS of regulation UE has 6 candidates when AL is 1 and 2 respectively in LTE PDCCH, AL have 2 candidate PDCCH when being 4 and 8 respectively, then detect that the maximum blind examination number of a target DCI is 6+6+2+2 =16 times, if it is considered that target DCI is possible to transmit in CSS, then blind examination number is more.
DCI refers to the control information of downlink transfer, is sent by BS, and UE is received.Content in DCI may be to control upper line number According to the control information of transmission or the control information of control downlink data transmission.The DCI of control transmitting uplink data is known as uplink DCI, the DCI for controlling downlink data transmission are known as downlink DCI.
Under normal circumstances, when UE needs to send upstream data to BS, UE sends resource request to BS first, and then BS is to UE Sending uplink DCI is the resource that UE distributes that transmitting uplink data needs, and UE is uploaded in the uplink data channels resource of distribution later Defeated upstream data.If BS sends downlink data to UE, BS sends downlink DCI to UE first, to UE indicating downlink data channel Resource, then UE receives downlink data in the downstream data channel resource of instruction.
Since uplink DCI is to be triggered by UE, such as UE sends triggering BS transmission uplink DCI after resource request, according to The regulation of agreement, UE always can know that the uplink DCI for receiving expectation at what time.
Since downlink DCI is initiated by BS, UE is not sure to be aware of when to have the downlink DCI for being sent to the UE, So if UE will receive the downlink data that base station is sent to the UE in time, UE has to each transmission cycle (such as duration Subframe for 1 millisecond) listen to whether have downlink DCI, when in fact without downlink DCI, but always want exhaustive maximum blind Number is examined, many electricity are wasted.For UE power saving, DRX technology, i.e. discontinuous reception are used in LTE, UE is specified according to BS's, It attempts to receive downlink DCI, such as every ten transmission cycles (10 subframes i.e. 10 milliseconds) or 1,000 at regular intervals A transmission cycle (1000 subframes i.e. 1 second) attempts to receive downlink DCI, reaches UE power saving purpose with this.Although DRX can reach To the purpose of UE power saving, but downlink data cannot reach UE in time.
Shown in sum up, UE needs to detect that base station is sent to the downlink DCI of the UE itself in PDCCH resource area Different location, according to the different polymerization grades of PDCCH, using different DCI payload sizes come blind examination downlink DCI, blind examination Cheng Benshen compares power consumption, and may not detect that base station is sent to the downlink of the UE itself after exhaustive maximum blind examination number DCI wastes more electricity.
Summary of the invention
The application provides a kind of method and device for transmitting Downlink Control Information, to solve use existing in the prior art Family equipment is when detection base station is sent to the Downlink Control Information DCI of the user equipment itself, the big problem of power consumption.
In a first aspect, this application provides a kind of methods for transmitting Downlink Control Information, this method comprises: base station is at one In transmission cycle, the first instruction letter is sent to user equipment in the setting resource of physical downlink control channel PDCCH resource-area Breath, wherein the first instruction information is used to indicate in the transmission cycle in the PDCCH resource area with the presence or absence of described The corresponding Downlink Control Information DCI of user equipment；The user equipment judges according to the first instruction information in the transmission It whether there is the DCI in period in the PDCCH resource area；If the first instruction information instruction is in the transmission cycle There are the DCI in the PDCCH resource area, then the base station is in the transmission cycle described in the PDCCH resource area The DCI is sent to the user equipment in the search space of user equipment, then the user equipment is in the transmission cycle The DCI is detected in the corresponding search space of user equipment described in the interior PDCCH resource area；If the first instruction information Indicate that there is no the DCI in the PDCCH resource area in the transmission cycle, then the user equipment is not or not the transmission week The DCI is detected in the PDCCH resource area in phase.
By the above method, user equipment is believed according to the first instruction that the base station received is sent in a transmission cycle Breath determines the DCI that whether there is the user equipment in PDCCH resource area in the transmission cycle, if the first instruction information Indicate the DCI that the user equipment is not present in PDCCH resource area in the transmission cycle, then the user equipment is not needed in institute State the DCI for detecting the user equipment in transmission cycle in the PDCCH resource area, wherein the user equipment receives the base The the first instruction information sent of standing can use various ways, and cost is smaller, receives for example, by using bright procuratorial organ's formula, or with less blind Number is examined to receive.The first instruction letter is sent to user equipment in the setting resource in the PDCCH resource area by the base station Breath allows user equipment clearly to detect that described first indicates information in the setting resource, the cost of cost compared with It is small, by the instruction of the first instruction information, it is informed in the transmission cycle in PDCCH resource area and is set with the presence or absence of the user Standby corresponding DCI, determines whether the detection for needing to carry out the DCI, in the not no user equipment pair of most transmission cycles In the case where the DCI answered, the number of user equipment blind examination DCI can be substantially reduced using this method, reach power saving purpose.
In a kind of possible design, in the transmission cycle, the setting in the PDCCH resource area is provided for the base station The first DCI is sent to user equipment in source, wherein the first DCI includes an indicating bit table, is used to indicate the user and sets Each user equipment whether there is in the PDCCH resource area in the transmission cycle in the group of user equipments at standby place corresponds to DCI, at least one bit in the indicating bit table is used to indicate is in the PDCCH resource area in the transmission cycle It is no that there are the DCI of the user equipment.
In this way, the first DCI can indicate simultaneously multiple user equipmenies whether in the transmission cycle institute It states and detects DCI in PDCCH resource area, save the resource of the first DCI of transmission.
In a kind of possible design, the user equipment judges according to the first instruction information in the transmission cycle In the interior PDCCH resource area whether there is the DCI, can by the transmission cycle according in the indicating bit table At least one bit corresponding with itself judges to whether there is in the PDCCH resource area in the transmission cycle described DCI。
In this way, user equipment can be according at least one bit corresponding with itself in indicating bit table, judgement The DCI is detected in the no PDCCH resource area described in the transmission cycle, the ratio in user equipment and indicating bit table is peculiar to be set Fixed corresponding relationship improves the accuracy of judgement.
In a kind of possible design, the setting resource includes public search space or user equipment place The corresponding constant transmissions money of group of user equipments where corresponding group of public search space of group of user equipments or the user equipment Source.
In a kind of possible design, if the value of at least one bit is all the first setting value, the user is set It is standby to determine that there are the DCI in the PDCCH resource area described in the transmission cycle；If at least one at least one described bit When the value of a bit is the second setting value, the user equipment is determined in the PDCCH resource area described in the transmission cycle not There are the DCI.
In a kind of possible design, the indicating bit table for including in the first DCI is the use where the user equipment The indicating bit table of family equipment group, or the compression indicating bit table for the group of user equipments where the user equipment, wherein the pressure Contracting indicating bit table is that the indicating bit table of the group of user equipments is obtained through overcompression.
In this way, the bit of indicating bit table in the first DCI can be made full use of, waste bit is avoided.
In a kind of possible design, the base station can send the first configuration information, the use to the user equipment Family equipment receives the first configuration information that the base station is sent, and includes the group of user equipments pair in first configuration information The public wireless network temporary identifier G-RNTI and the user equipment answered is identified in the group in the group of user equipments, In, the G-RNTI is that group of user equipments is corresponding where the user equipment for the DCI that user equipment identification receives The first DCI, in described group mark determined in the indicating bit table of the group of user equipments for the user equipment with it is described The corresponding bit of user equipment itself.
In a kind of possible design, the base station can also send the second configuration information to the user equipment, described User equipment receives the second configuration information that the base station is sent, and includes indicator wireless network in second configuration information The group mark of group of user equipments where temporary identifier I-RNTI, the user equipment and the user equipment are in the user equipment Mark in group in group, wherein the I-RNTI is the first DCI, institute for the DCI that user equipment identification receives Whether state group mark for determining received DCI is corresponding first DCI of the group of user equipments, described group of internal standard Know and is determined and the corresponding bit of the user equipment itself in the first DCI for the user equipment.
In a kind of possible design, in the transmission cycle, the setting in the PDCCH resource area is provided for the base station At least 1 bit information can also be sent to user equipment in source, then the user equipment receives in the transmission cycle At least 1 bit information that base station is sent in the setting resource in PDCCH resource area, wherein at least 1 bit information is for referring to Show in the transmission cycle Downlink Control Information DCI in the PDCCH resource area with the presence or absence of the user equipment, it is described The each bit information for including at least 1 bit information can be with individual transmission.
In this way, whether there is in the PDCCH resource area in the transmission cycle by individual transmission instruction At least 1 bit information of the DCI of the user equipment, can quickly indicate whether user equipment needs in the transmission cycle The DCI is detected in the interior PDCCH resource area.
In a kind of possible design, the user equipment can determine itself at least one described bit information At least one corresponding bit information, according at least one corresponding bit decision of the user equipment itself in the transmission week It whether there is the DCI in phase in the PDCCH resource area.
In a kind of possible design, if the value of corresponding at least 1 bit information of the user equipment itself is all third When setting value, the user equipment can determine that there are the DCI in the PDCCH resource area in the transmission cycle；If When the value at least one bit for including in corresponding at least 1 bit information of the user equipment itself is four setting value, institute It states user equipment and determines that there is no the DCI in the PDCCH resource area described in the transmission cycle.
In a kind of possible design, the setting resource includes the corresponding constant transmissions resource of the user equipment.
In a kind of possible design, the base station can also send third configuration information to the user equipment, described It include the corresponding relationship of at least one resource location and the user equipment in third configuration information, wherein each resource Position is used for transmission 1 bit information at least 1 bit information.
Second aspect, the application provide a kind of user equipment, including Transmit-Receive Unit and processing unit, the Transmit-Receive Unit and Processing unit can also be realized by hardware realization by corresponding logic functional block.Transmit-Receive Unit and processing unit It may be implemented in above-mentioned first aspect and its first aspect by reciprocal complete by user equipment in any possible design At method process.
In a kind of possible design, the Transmit-Receive Unit can refer to the volume solution in user equipment in baseband processing module The code circuits such as device and modem, the processing unit can refer to the processor in user equipment in baseband processing module； Alternatively, the Transmit-Receive Unit can refer to baseband processing module in user equipment, the processing unit be baseband processing module it Outer application processor.
The third aspect, the application provide a kind of base station, including Transmit-Receive Unit, and the Transmit-Receive Unit can pass through hardware reality It is existing, it can also be realized by corresponding logic functional block.Above-mentioned second aspect and its second aspect may be implemented in Transmit-Receive Unit In the method process completed by base station in any possible design.
Fourth aspect, the embodiment of the present application also provides a kind of equipment, including processor and memory, the memory is used In storage software program, the processor is for reading the software program stored in the memory and realizing first aspect, the The method that any one design of any one design, second aspect and second aspect of one side provides.
5th aspect, present invention also provides a kind of computer readable storage mediums, execute above-mentioned first for being stored as Computer software instructions used in the function of any one design of aspect, first aspect, it includes for executing above-mentioned first Designed by the method for any one design of any one design, second aspect and second aspect of aspect, first aspect Program.
6th aspect, the embodiment of the present application also provides a kind of device, described device is connected with memory, for reading simultaneously Execute the software program stored in the memory, with realize first aspect or above-mentioned first aspect any one design, the Two aspect and second any one design method, described device be chip or chip system.
7th aspect, the embodiment of the present application also provides a kind of systems, including realize first aspect or above-mentioned first aspect Any one design user equipment and, realize second aspect and second any one design base station.
Present invention also provides any one following embodiments:
1. a kind of downlink data transmission method is used for user equipment, which comprises
The user equipment receives the first instruction information that base station is sent, and the first instruction information is used to indicate whether to deposit In the Downlink Control Information about downlink data transmission, that is, downlink DCI of the user equipment；
If the first instruction information instruction is without downlink DCI, the user equipment does not detect downlink DCI；Or,
If the first instruction information instruction has downlink DCI, the user equipment receives the user equipment by blind examination Downlink DCI, if the downlink DCI for detecting the user equipment according in the downlink DCI control information receive described in Base station is sent to the downlink data of the user equipment.
The first instruction information that wherein user equipment receives that the base station is sent can use various ways, and cost compared with It is small, it is received for example, by using bright procuratorial organ's formula, or with the reception of less blind examination number.There is no the feelings of downlink DCI in most transmission cycles Under condition, the number of user equipment blind examination downlink DCI can be substantially reduced using this method, reaches power saving purpose.
The first instruction information, the downlink DCI and the downlink data are transmitted in the same transmission cycle, the use Family equipment receives the first instruction information in each transmission cycle.
Control information in the downlink DCI includes the resource allocation information and transmission rate letter for transmitting the downlink data Breath etc..
Wherein, the downlink DCI is one kind of DCI, refers to the DCI about downlink data transmission, that is, under for dispatching The DCI of row data transmission.
2. the user equipment receives the first instruction information and specifically includes according to method described in method 1:
The corresponding indicator Downlink Control Information I- of group of user equipments where the user equipment receives the user equipment DCI, the I-DCI are used to indicate whether each user equipment in the group of user equipments has downlink DCI, wrap in the I-DCI Table containing indicating bit, the corresponding bit carrying of user equipment described in the indicating bit table the first instruction information, described first Instruction information takes the first value to indicate downlink DCI, and the first instruction information takes second value to indicate no downlink DCI.
Fixed polymerization grade transmission can be used in the I-DCI, and search range is smaller, or passes in fixed position It is defeated, so that the number of the user equipment blind examination I-DCI reduces or should not blind examination.
The I-DCI, which can be, has the public DCI of group, wherein further including other information relevant to group of user equipments.
The indicating bit table for including in the I-DCI can be original indicating bit table, then the user equipment can directly from The corresponding bit of the user equipment is obtained in the original indicating bit table.The indicating bit table for including in the I-DCI can also be with To compress indicating bit table, then the user equipment needs compression indicating bit table expanding into original indicating bit table, then from original finger Show and obtains the corresponding bit of the user equipment in a table.
Can also be to indicate the indicating bit table that the I-DCI includes comprising compression the first instruction information in the I-DCI Original indicating bit table still compresses indicating bit table.
Wherein, the I-DCI is referred to as the first DCI, can also be called with other titles, as long as its function is identical ?.
3. the user equipment also wraps before receiving the first instruction information that base station is sent according to method described in method 2 It includes:
The user equipment receives the first configuration information that the base station is sent, and first configuration information includes the use At least one group of user equipments configuration information where the equipment of family, one group of user equipments configuration information include at least described The public wireless network temporary identifier G-RNTI and the user equipment of one group of user equipments are in one group of user equipments Device identification in interior group, the G-RNTI identify that received DCI is one group of user equipments for the user equipment Corresponding I-DCI, device identification determines the user equipment for the user equipment from the indicating bit table in described group Corresponding bit；Or,
The user equipment receives the second configuration information that the base station is sent, and second configuration information includes indicator Radio network temporary identifier I-RNTI and at least one group of user equipments configuration information where the user equipment, the I- RNTI identifies that received DCI is I-DCI for the user equipment, and one group of user equipments configuration information includes at least institute State the brief group mark and user equipment equipment mark in the group in one group of user equipments of a group of user equipments Know, the I-DCI further includes a group identification field, and the user equipment determines that institute is received according to the value of described group of identification field Whether I-DCI is the corresponding I-DCI of one group of user equipments, and device identification is used for the user equipment from institute in described group The corresponding bit of the user equipment is determined in the indicating bit table for including in received I-DCI.
The indicating bit table can be original indicating bit table or compression indicating bit table, if the indicating bit table is compression instruction Position table, the user equipment determine the corresponding ratio of the user equipment according to device identification in described group from the indicating bit table It needs that compression indicating bit table is expanded into original indicating bit table first when special, then according to device identification in described group from the original The corresponding bit of the user equipment is determined in beginning indicating bit table.
The G-RNTI identifies that received DCI is the corresponding I- of one group of user equipments for the user equipment DCI specifically, the user equipment detects the scrambled CRC code of a received DCI using the G-RNTI, if it does, Then the received DCI of institute is exactly the corresponding I-DCI of one group of user equipments.
The I-RNTI identifies that received DCI is I-DCI specifically, the user equipment uses for the user equipment The I-RNTI detects the scrambled CRC code of a received DCI, if it does, then the received DCI of institute is exactly an I-DCI.
4. the user equipment receives the first instruction information and specifically includes according to method described in method 1:
The corresponding indicator Downlink Control Information I- of group of user equipments where the user equipment receives the user equipment It include Bloom filter in DCI, the I-DCI, the Bloom filter includes M bit, and the M is greater than 1, and described first refers to Show that information occupies K bit in the Bloom filter, the K is greater than 1 and is less than M, and the K bit all takes the first value to indicate There is downlink DCI, any bit takes second value expression not have downlink DCI in the K bit.
Fixed polymerization grade transmission can be used in the I-DCI, and search range is smaller, or passes in fixed position It is defeated so that the user equipment reduce blind examination I-DCI number or should not blind examination.
The I-DCI, which can be in the prior art, has the public DCI of group, wherein further including other related to group of user equipments Information.
The number of user equipment that the corresponding group of user equipments of the I-DCI includes is greater than the bit in the Bloom filter Number, any two user equipmenies in the group of user equipments may share in the Bloom filter 1 to K bit.
5. the user equipment also wraps before receiving the first instruction information that base station is sent according to method described in method 4 It includes:
The user equipment receives the third configuration information that the base station is sent, and the third configuration information includes the use At least one group of user equipments configuration information where the equipment of family, one group of user equipments configuration information include at least described The public wireless network temporary identifier G-RNTI and K bit position information of one group of user equipments, the G-RNTI are used for institute Stating the user equipment identification received DCI of institute is the corresponding I-DCI of one group of user equipments, K bit position information For the user equipment from include in received I-DCI Bloom filter in obtain the user equipment K corresponding Bit；Or,
The user equipment receives the 4th configuration information that the base station is sent, and the 4th configuration information includes indicator Radio network temporary identifier I-RNTI and at least one group of user equipments configuration information where the user equipment, the I- The received DCI of institute is I-DCI to RNTI for identification, and one group of user equipments configuration information includes at least group of user equipments mark Knowledge and K bit position information, the I-DCI further includes a group identification field, and the user equipment is according to described group of identification field Determine that the received I-DCI of institute is the corresponding I-DCI of one group of user equipments, K bit position information is for described User equipment from include in received I-DCI Bloom filter in obtain the corresponding K bit of the user equipment.
The particular use of the G-RNTI and I-RNTI can be with reference to the description in method 3.
6. the user equipment receives the first instruction information and specifically includes according to method described in method 1:
The first instruction information is a bit information, and the user equipment is in the corresponding physics of the user equipment Downlink instruction channel receives the first instruction information that the base station is sent, and the first instruction information takes the first value to indicate Downlink DCI, the first instruction information take second value to indicate no downlink DCI.
7. the user equipment also wraps before receiving the first instruction information that base station is sent according to method described in method 6 It includes:
The user equipment receives the 5th configuration information that the base station is sent, and the 5th configuration information includes the object Manage the running time-frequency resource and code domain resource information of downlink instruction channel；Or,
The user equipment receives the 6th configuration information that the base station is sent, and the 6th configuration information includes the object The code domain resource information and the first calculating parameter information of downlink instruction channel are managed, the user equipment is calculated according to described first joins Number information calculates the running time-frequency resource for obtaining the physical down instruction channel；Or,
The user equipment receives the second calculating parameter information that the base station is sent, and the user equipment is according to described the Two calculating parameter information calculate the running time-frequency resource and code domain resource information for obtaining the physical down instruction channel.
The first calculating parameter information may include the calculating factor of the user equipment, and the user equipment is according to institute The running time-frequency resource for stating the first calculating parameter information calculating acquisition physical down instruction channel specifically can be, and the user sets It is standby according to the calculating therefore, the information such as the radio network temporary identifier RNTI of the user equipment calculate and obtain under the physics The running time-frequency resource of row instruction channel.
The second calculating parameter information can specifically include radio network temporary identifier RNTI of the user equipment etc..
8. the user equipment receives the first instruction information and specifically includes according to method described in method 1:
The first instruction information is K bit information, and the K is greater than 1, and the user equipment is corresponding in the user equipment K physical down instruction channel receive the first instruction information that the base station is sent, the K physical down instruction is believed Each of road physical down indicates that 1 bit information of transmission, each bit in the first instruction information take the One value indicates downlink DCI, and any bit takes second value to indicate no downlink DCI in the first instruction information.
9. the user equipment also wraps before receiving the first instruction information that base station is sent according to method described in method 8 It includes:
The user equipment receives the 7th configuration information that the base station is sent, and the 7th configuration information includes the K The running time-frequency resource and code domain resource information of a physical down instruction channel；Or,
The user equipment receives the 8th configuration information that the base station is sent, and the 8th configuration information includes the K The code domain resource information and third calculating parameter information of a physical down instruction channel, the user equipment is according to the third meter It calculates parameter information and calculates the running time-frequency resource for obtaining the K physical down instruction channel；Or,
The user equipment receives the 4th calculating parameter information that the base station is sent, and the user equipment is according to described the Four calculating parameter information calculate the running time-frequency resource and code domain resource information for obtaining the K physical down instruction channel.
It can be with reference to the first calculating parameter described in method 7 about the third calculating parameter.
It can be with reference to the second calculating parameter described in method 7 about the 4th calculating parameter.
10. a kind of downlink data transmission method is used for base station, which comprises
The base station sends the first instruction information to the first user equipment, and the first instruction information is used to indicate whether to deposit In the Downlink Control Information about downlink data transmission, that is, downlink DCI of first user equipment, so as to first user Equipment determines the need for blind examination downlink DCI according to the first instruction information；
If the first instruction information instruction has downlink DCI, the base station also sends downlink to first user equipment DCI and downlink data, the downlink DCI include the control information for controlling the downlink data transmission.
Wherein the base station to first user equipment send first instruction information can use various ways, and cost compared with It is small, such as sending on fixed resource receives first user equipment using bright procuratorial organ's formula, or makes first user Equipment sends the first instruction information in such a way that less blind examination number receives the first instruction information.It is transmitted in majority In the case that period does not have the downlink DCI of first user equipment, first user can be substantially reduced using this method and set The number of standby blind examination downlink DCI, achievees the purpose that make the first user equipment power saving.
The first instruction information, the downlink DCI and the downlink data are transmitted in the same transmission cycle, the base It stands and sends the first instruction information in each transmission cycle.
Control information in the downlink DCI includes the resource allocation information and transmission rate letter for transmitting the downlink data Breath etc..
11. the base station sends the first instruction information to the first user equipment and specifically wraps according to method described in method 10 It includes:
A group of user equipments transmission indicator Downlink Control Information where the base station to first user equipment It include indicating bit table in I-DCI, the I-DCI, the corresponding bit of the first user equipment described in the indicating bit table carries institute The first instruction information is stated, the first instruction information takes the first value to indicate downlink DCI, and the first instruction information takes second value Indicate no downlink DCI.
Fixed polymerization grade transmission can be used in the I-DCI, and search range is smaller, or passes in fixed position It is defeated, to reduce the number of the first user equipment blind examination I-DCI or not need the first user equipment blind examination.
The I-DCI, which can be, has the public DCI of group, wherein further including user where other and described first user equipment The relevant information of equipment group.
The indicating bit table for including in the I-DCI can be original indicating bit table, each ratio in the original indicating bit table The corresponding user equipment of spy, then first user equipment directly can obtain oneself from the indicating bit table in I-DCI and correspond to Bit.The indicating bit table for including in the I-DCI may be compression indicating bit table, compress indicating bit table according to described original The contracting of indicating bit gauge pressure obtains, then first user equipment needs the compression indicating bit table expanding into original indicating bit table, The corresponding bit of first user equipment is obtained from original indicating bit table again.
Can also be to indicate the indicating bit table that the I-DCI includes comprising compression the first instruction information in the I-DCI Original indicating bit table still compresses indicating bit table.
12. the base station is gone back before sending the first instruction information to the first user equipment according to method described in method 11 Include:
The base station sends the first configuration information to first user equipment, and first configuration information includes described the At least one group of user equipments configuration information where one user equipment, one group of user equipments configuration information include at least The public wireless network temporary identifier G-RNTI of one group of user equipments and first user equipment are in one use Device identification in group in the equipment group of family, it is that one user sets that the G-RNTI, which is used to identify the DCI that the base station is sent, Standby to organize corresponding I-DCI, device identification is for determining described in the corresponding I-DCI of one group of user equipments the in described group The corresponding bit of one user equipment；Or,
The base station sends the second configuration information to first user equipment, and second configuration information includes indicator Radio network temporary identifier I-RNTI and at least one group of user equipments configuration information where first user equipment, it is described It is I-DCI that I-RNTI, which is used to identify the DCI that the base station is sent, and one group of user equipments configuration information includes at least described The group mark of one group of user equipments and the first user equipment device identification in the group in one group of user equipments, The I-DCI further includes a group identification field, and the value of described group of identification field indicates that the I-DCI that the base station is sent is described one A group of user equipments corresponding I-DCI, device identification is for determining the corresponding I-DCI of one group of user equipments in described group In include indicating bit table described in the corresponding bit of the first user equipment.
The indicating bit table can be original indicating bit table or compression indicating bit table, if the indicating bit table is compression instruction Position table, device identification is for determining in the indicating bit table for including in the corresponding I-DCI of one group of user equipments in described group The corresponding bit of first user equipment specifically, the base station generates original indicating bit table, first user equipment Device identification corresponds to corresponding bit in the original indicating bit table in group, and the base station is compressed after raw bits gauge pressure contracts Indicating bit table is contained in the I-DCI.
It is the corresponding I-DCI tool of one group of user equipments that the G-RNTI, which is used to identify the DCI that the base station is sent, Body is that using the CRC code in the I-DCI of G-RNTI scrambling transmission, identifying transmitted I-DCI with this is exactly for the base station The corresponding I-DCI of one group of user equipments.
It is I-DCI specifically, the base station uses the I- that the I-RNTI, which is used to identify the DCI that the base station is sent, The CRC code for the I-DCI that RNTI scrambling is sent, identifying transmitted DCI with this is an I-DCI.
13. according to method described in method 10, which is characterized in that the base station sends the first instruction to the first user equipment Information specifically includes:
The corresponding finger of group of user equipments where the base station sends first user equipment to first user equipment Show device Downlink Control Information I-DCI, include Bloom filter in the I-DCI, the Bloom filter includes M bit, institute M is stated greater than 1, the first instruction information occupies K bit in the Bloom filter, and the K is greater than 1 and is less than M, the K A bit all takes the first value to indicate downlink DCI, and any bit takes second value expression not have downlink DCI in the K bit.
Fixed polymerization grade transmission can be used in the I-DCI, and search range is smaller, or passes in fixed position It is defeated so that first user equipment reduce blind examination I-DCI number or should not blind examination.
The I-DCI, which can be in the prior art, has the public DCI of group, wherein further including other related to group of user equipments Information.
The number of user equipment that the corresponding group of user equipments of the I-DCI includes is greater than the bit in the Bloom filter Number, any two user equipmenies in first group of user equipments can share in the Bloom filter 1 to K bit.
14. the base station is gone back before sending the first instruction information to the first user equipment according to method described in method 13 Include:
The base station sends third configuration information to first user equipment, and the third configuration information includes described the At least one group of user equipments configuration information where one user equipment, one group of user equipments configuration information include at least The public wireless network temporary identifier G-RNTI of one group of user equipments and K bit position information, the G-RNTI are used It is the corresponding I-DCI of one group of user equipments in identifying the DCI that the base station is sent, K bit position information is used In instruction the first user equipment corresponding K in the Bloom filter in the corresponding I-DCI of one group of user equipments A bit；Or,
The base station sends the 4th configuration information to first user equipment, and the 4th configuration information includes indicator Radio network temporary identifier I-RNTI and at least one group of user equipments configuration information where first user equipment, it is described It is I-DCI that I-RNTI, which is used to identify the DCI that the base station is sent, and one group of user equipments configuration information includes at least user Equipment group mark and K bit position information, the I-DCI further includes a group identification field, and the value of described group of identification field refers to Show that the I-DCI that the base station is sent is the corresponding I-DCI of one group of user equipments, K bit position information is used for Indicate first user equipment corresponding K in the Bloom filter in the corresponding I-DCI of one group of user equipments Bit.
The particular use of the G-RNTI and I-RNTI can be with reference to the description in method 12.
15. the base station sends the first instruction information to the first user equipment and specifically wraps according to method described in method 10 It includes:
The first instruction information is a bit information, and the base station is in the corresponding physics of first user equipment Downlink indicates that channel sends the first instruction information, and the first instruction information takes the first value to indicate downlink DCI, described the One instruction information takes second value to indicate no downlink DCI.
Wherein, first value is properly termed as the first setting value, and second value is properly termed as the second setting value.
16. the base station is gone back before sending the first instruction information to the first user equipment according to method described in method 15 Include:
The base station sends the 5th configuration information to first user equipment, and the 5th configuration information includes the object Manage the running time-frequency resource and code domain resource information of downlink instruction channel；Or,
The base station sends the 6th configuration information to first user equipment, and the 6th configuration information includes the object The code domain resource information and the first calculating parameter information of downlink instruction channel are managed, the first calculating parameter information is for determining institute State the running time-frequency resource of physical down instruction channel；Or,
The base station sends the second calculating parameter information to first user equipment, and the second calculating parameter information is used In the running time-frequency resource and code domain resource information that determine the physical down instruction channel.
The first calculating parameter information may include the calculating factor of first user equipment, and the base station is according to The calculating such as radio network temporary identifier RNTI of one calculating parameter information, first user equipment obtain the physical down and refer to Show the running time-frequency resource of channel, alternatively, the base station first determines the running time-frequency resource of the physical down instruction channel, further according to described Running time-frequency resource and the radio network temporary identifier RNTI of first user equipment of physical down instruction channel etc. calculate institute The calculating factor is stated, is referred to so that first user equipment can calculate the physical down according to information such as the calculating factors Show the running time-frequency resource of channel.
The second calculating parameter information can specifically include the radio network temporary identifier of first user equipment RNTI etc..
17. the base station sends the first instruction information to the first user equipment and specifically wraps according to method described in method 10 It includes:
The first instruction information is K bit information, and the K is greater than 1, and the base station is corresponding in first user equipment K physical down instruction channel send the first instruction information, the K physical down indicates each of channel object It manages downlink and indicates that 1 bit information of transmission, each bit in the first instruction information take the first value to indicate downlink DCI, described first indicates that any bit takes second value to indicate no downlink DCI in information.
18. the base station is gone back before sending the first instruction information to the first user equipment according to method described in method 17 Include:
The base station sends the 7th configuration information to first user equipment, and the 7th configuration information includes the K The running time-frequency resource and code domain resource information of a physical down instruction channel；Or,
The base station sends the 8th configuration information to first user equipment, and the 8th configuration information includes the K The code domain resource information and third calculating parameter information of a physical down instruction channel, the third calculating parameter information is for true The running time-frequency resource of the fixed K physical down instruction channel；Or,
The base station sends the 4th calculating parameter information to first user equipment, and the 4th calculating parameter information is used In the running time-frequency resource and code domain resource information that determine the K physical down instruction channel.
It can be with reference to the first calculating parameter described in method 16 about the third calculating parameter.
It can be with reference to the second calculating parameter described in method 16 about the 4th calculating parameter.
19. a kind of user equipment, comprising:
Memory, for storing instruction；
Processor executes any method of above method 1-9 for calling the instruction in the memory.
A kind of 20 base stations, comprising:
Memory, for storing instruction；
Processor executes any method of above method 10-18 for calling the instruction in the memory.
21. a kind of user equipment, comprising: processor, memory and transceiver；
The transceiver is realized with base station and is wirelessly communicated for sending and receiving data；
The memory is for storing instruction；
The processor is used to execute the described instruction in the memory, executes the method as described in method 1-9 is any.
22. a kind of base station, comprising: processor, memory and transceiver；
The transceiver is realized with user equipment and is wirelessly communicated for sending and receiving data；
The memory is for storing instruction；
The processor is used to execute the described instruction in the memory, executes the side as described in method 10-18 is any Method.
23, a kind of user equipment is configured as executing the method as described in method 1-9 is any.
24, a kind of base station is configured as executing the method as described in method 10-18 is any.
25, a kind of computer program product, including computer program, the computer program execute on a certain computer When, it will make any method of the computer implemented method 1-9.
26, a kind of computer program product, including computer program, the computer program execute on a certain computer When, it will make any method of the computer implemented method 10-18.
27, a kind of computer program, the computer program on a certain computer when executing, it will keeps the computer real The existing any method of method 1-9.
28, a kind of computer program, the computer program on a certain computer when executing, it will keeps the computer real The existing any method of method 10-18.
29, a kind of communication system, including the user equipment as described in method 1-9 is any and as described in method 10-18 is any Base station.
30, a kind of computer readable storage medium, is stored thereon with computer program, and the computer program is in a certain calculating When being executed on machine, it will the computer is made to realize the method as described in 1-9 is any.
31, a kind of computer readable storage medium, is stored thereon with computer program, and the computer program is in a certain calculating When being executed on machine, it will the computer is made to realize the method as described in 10-18 is any.
32, a kind of chip, comprising: processing module and communication interface, the processing module require 1 to 9 for perform claim Any one of described in method.
33, the chip according to 32, the chip further include memory module (e.g., memory), and the memory module is used In store instruction, the processing module is used to execute the instruction of the memory module storage, and to depositing in the memory module The execution of the instruction of storage is so that method described in any one of processing module perform claim requirement 1 to 9.
34, a kind of chip, comprising: processing module and communication interface, the processing module for perform claim require 10 to Method described in any one of 18.
35, the chip according to 34, the chip further include memory module (e.g., memory), and the memory module is used In store instruction, the processing module is used to execute the instruction of the memory module storage, and to depositing in the memory module The execution of the instruction of storage is so that method described in any one of processing module perform claim requirement 10 to 18.
The number of the number and following each embodiment of each embodiment of aforementioned offer has no specific corresponding relationship, only Convenience of this part in statement.
Present invention also provides following any embodiment, (number and this paper other parts of each embodiment in this part are provided The number of each embodiment has no specific corresponding relationship, only for convenience of this part in statement.):
1, a kind of method for transmitting Downlink Control Information, which is characterized in that the described method includes:
User equipment is inscribed in a transmission cycle and receives base station in the setting of physical downlink control channel PDCCH resource-area The the first instruction information sent in resource, wherein the first instruction information is used to indicate in the transmission cycle described It whether there is the corresponding Downlink Control Information DCI of the user equipment in PDCCH resource area；
The user equipment judges in the transmission cycle in the PDCCH resource area according to the first instruction information With the presence or absence of the DCI；
If the first instruction information instruction in the transmission cycle in the PDCCH resource area there are the DCI, The user equipment detects in the corresponding search space of user equipment described in the PDCCH resource area in the transmission cycle The DCI；
If the first instruction information indicates that the DCI is not present in the transmission cycle in the PDCCH resource area, The user equipment detects the DCI in the PDCCH resource area not in the transmission cycle.
2, method as described in Example 1, which is characterized in that As-received is inscribed in a transmission cycle in the user equipment First sent in the setting resource of physical downlink control channel PDCCH resource-area that stand indicates information, comprising:
The user equipment receives base station in the setting resource in the PDCCH resource area and sends out the transmission cycle is inscribed The first DCI sent, wherein the first DCI includes an indicating bit table, and the user where being used to indicate the user equipment sets Each user equipment whether there is corresponding DCI, the instruction in the transmission cycle in standby group in the PDCCH resource area At least one bit in the table of position is used to indicate in the transmission cycle in the PDCCH resource area with the presence or absence of the user The DCI of equipment.
3, method as described in Example 2, which is characterized in that the user equipment judges according to the first instruction information It whether there is the DCI in the PDCCH resource area in the transmission cycle, comprising:
The user equipment in the transmission cycle according in the indicating bit table it is corresponding with the user equipment extremely A few bit judges to whether there is the DCI in the PDCCH resource area in the transmission cycle.
4, the method as described in any in embodiment 1-3, which is characterized in that the setting resource includes common search sky Between or the user equipment where use where corresponding group of public search space of group of user equipments or the user equipment The corresponding constant transmissions resource of family equipment group.
5, method as described in Example 3, which is characterized in that the user equipment is in the transmission cycle according to At least one bit corresponding with the user equipment in indicating bit table, judges the PDCCH resource in the transmission cycle It whether there is the DCI in area, specifically include:
If the value of at least one bit is all the first setting value, the user equipment is determined in the transmission cycle There are the DCI in the interior PDCCH resource area；
If the value of at least one bit is the second setting value at least one described bit, the user equipment is determined The DCI is not present in the transmission cycle in the PDCCH resource area.
6, the method as described in any in embodiment 2-5, which is characterized in that the indicating bit table for including in the first DCI For the indicating bit table of the group of user equipments where the user equipment, or the pressure for the group of user equipments where the user equipment Contracting indicating bit table, wherein the compression indicating bit table is that the indicating bit table of the group of user equipments is obtained through overcompression.
7, the method as described in any in embodiment 2-6, which is characterized in that the user equipment is in the transmission cycle Before receiving the first instruction information that base station is sent in the setting resource in the PDCCH resource area, this method further include:
The user equipment receives the first configuration information that the base station is sent, and includes institute in first configuration information The corresponding public wireless network temporary identifier G-RNTI of group of user equipments and the user equipment are stated in the group of user equipments In group in mark, wherein where the G-RNTI is the user equipment for the DCI that receives of user equipment identification Corresponding first DCI of group of user equipments, described group of interior mark are used for the user equipment in the finger of the group of user equipments Show in a table and determines and the corresponding bit of the user equipment itself.
8, the method as described in embodiment 2-6 is any, which is characterized in that the user equipment is inscribed in the transmission cycle Before receiving the first instruction information that base station is sent in the setting resource in the PDCCH resource area, this method further include:
The user equipment receives the second configuration information that the base station is sent, and includes referring in second configuration information The group mark of group of user equipments where showing device radio network temporary identifier I-RNTI, the user equipment and the user equipment exist Mark in group in the group of user equipments, wherein DCI of the I-RNTI for user equipment identification to receive is institute The first DCI is stated, whether described group of mark is the group of user equipments corresponding described first for determining received DCI DCI, described group of interior mark determine ratio corresponding with the user equipment itself for the user equipment in the first DCI Special position.
9, method as described in Example 1, which is characterized in that As-received is inscribed in a transmission cycle in the user equipment First sent in the setting resource of physical downlink control channel PDCCH resource-area that stand indicates information, comprising:
The user equipment is inscribed in the transmission cycle and receives what base station was sent in the setting resource in PDCCH resource area At least 1 bit information, wherein at least 1 bit information is used to indicate in the transmission cycle in the PDCCH resource area With the presence or absence of the Downlink Control Information DCI of the user equipment, each bit information for including at least 1 bit information is only It writes a biography defeated.
10, method as described in Example 9, which is characterized in that the user equipment is sentenced according to the first instruction information Break and whether there is the DCI in the PDCCH resource area in the transmission cycle, comprising:
The user equipment determines itself at least one corresponding bit information at least one described bit information, It is in the PDCCH resource area in the transmission cycle according at least one corresponding bit decision of the user equipment itself It is no that there are the DCI.
11, the method as described in embodiment 9 or 10, which is characterized in that described corresponding according to the user equipment itself At least one bit decision whether there is the DCI in the transmission cycle in the PDCCH resource area, specifically include:
If the value of corresponding at least 1 bit information of the user equipment itself is all third setting value, the user is set It is standby to determine that there are the DCI in the PDCCH resource area described in the transmission cycle；
If the value at least one bit for including in corresponding at least 1 bit information of the user equipment itself sets for the 4th When definite value, the user equipment, which is determined, is not present the DCI in the PDCCH resource area described in the transmission cycle.
12, the method as described in any in embodiment 9-11, which is characterized in that the setting resource includes that the user sets Standby corresponding constant transmissions resource.
13, the method as described in embodiment 9-12 is any, which is characterized in that the user equipment is in the transmission cycle Before receiving at least 1 bit information that base station is sent in the setting resource in PDCCH resource area, this method further include:
The user equipment receives the third configuration information that the base station is sent, and includes extremely in the third configuration information The corresponding relationship of few a resource location and the user equipment, wherein each resource location is used for transmission described at least 1 1 bit information in bit information.
14, a kind of method for transmitting Downlink Control Information, which is characterized in that the described method includes:
Base station is in a transmission cycle, to user in the setting resource of physical downlink control channel PDCCH resource-area Equipment sends the first instruction information, wherein the first instruction information is used to indicate the PDCCH money in the transmission cycle It whether there is the corresponding Downlink Control Information DCI of the user equipment in source region；
If the first instruction information instruction in the transmission cycle in the PDCCH resource area there are the DCI, The base station is set in the search space of user equipment described in the PDCCH resource area to the user in the transmission cycle Preparation send the DCI.
15, the method that such as embodiment 14 is stated, which is characterized in that the base station is in a transmission cycle, in physical down The first instruction information is sent to user equipment in the setting resource in control channel PDCCH resource area, comprising:
The base station is sent in the setting resource in the PDCCH resource area to user equipment in the transmission cycle First DCI, wherein the first DCI includes an indicating bit table, the group of user equipments being used to indicate where the user equipment In each user equipment in the PDCCH resource area whether there is corresponding DCI, at least one of described indicating bit table Bit is used to indicate the DCI that whether there is the user equipment in the PDCCH resource area in the transmission cycle.
16, the method as described in embodiment 14 or 15, which is characterized in that the setting resource include public search space, Or user where corresponding group of public search space of group of user equipments where the user equipment or the user equipment sets It is standby to organize corresponding constant transmissions resource.
17, method as described in Example 15, which is characterized in that if the value of at least one bit is all the first setting Value, the first DCI indicate the DCI in the transmission cycle in the PDCCH resource area there are the user equipment； If the value of at least one bit is the second setting value at least one described bit, the first DCI instruction is in the transmission week The DCI of the user equipment is not present in phase in the PDCCH resource area.
18, the method as described in any in embodiment 15-17, which is characterized in that the indicating bit for including in the first DCI Table is the indicating bit table of the group of user equipments where the user equipment, or is the group of user equipments where the user equipment Compress indicating bit table, wherein the compression indicating bit table is that the indicating bit table of the group of user equipments is obtained through overcompression.
19, method as described in Example 15, which is characterized in that the base station is in the transmission cycle, described Before sending the first instruction information to user equipment in the setting resource in PDCCH resource area, this method further include:
The base station sends the first configuration information to the user equipment, includes the user in first configuration information The group of the corresponding public wireless network temporary identifier G-RNTI of equipment group and the user equipment in the group of user equipments Interior mark, wherein user where DCI of the G-RNTI for user equipment identification to receive is the user equipment sets Standby to organize corresponding first DCI, mark is used for the user equipment in the indicating bit table of the group of user equipments in described group The corresponding bit of middle determination itself.
20, the method as described in any in embodiment 15-19, which is characterized in that the base station in the transmission cycle, Before sending the first instruction information to user equipment in the setting resource in the PDCCH resource area, this method further include:
The base station sends the second configuration information to the user equipment, include indicator in second configuration information without The group mark of group of user equipments where line Network Temporary Identifier I-RNTI, the user equipment and the user equipment are in the use Mark in group in the equipment group of family, wherein the I-RNTI identifies that received DCI is described first for the user equipment DCI, for determining, whether received DCI is corresponding first DCI of the group of user equipments to described group of mark, described group Interior mark determines and the corresponding bit of the user equipment itself in the first DCI for the user equipment.
21, method as described in Example 14, which is characterized in that the base station is in a transmission cycle, under physics The first instruction information is sent to user equipment in the setting resource in row control channel PDCCH resource area, comprising:
The base station is sent in the setting resource in the PDCCH resource area to user equipment in the transmission cycle At least 1 bit information, wherein at least 1 bit information is used to indicate in the transmission cycle in the PDCCH resource area With the presence or absence of the Downlink Control Information DCI of the user equipment, each bit information for including in an at least bit information Individual transmission.
22, method as described in Example 21, which is characterized in that if the value of at least 1 bit information all sets for third Definite value, there are the DCI in the PDCCH resource area in the transmission cycle for at least 1 bit information instruction；If described At least the value of 1 bit information is all the 4th setting value, and at least 1 bit information instruction is described in the transmission cycle The DCI is not present in PDCCH resource area.
23, the method as described in embodiment 21 or 22, which is characterized in that the setting resource includes the user equipment pair The constant transmissions resource answered.
24, the method as described in embodiment 21-23 is any, which is characterized in that the base station in the transmission cycle, Before sending at least 1 bit information to user equipment in the setting resource in the PDCCH resource area, this method further include:
The base station sends third configuration information to the user equipment, includes at least one in the third configuration information The corresponding relationship of resource location and the user equipment, wherein each resource location is used for transmission at least 1 bit letter 1 bit information in breath.
25, a kind of user equipment, which is characterized in that the user equipment includes:
Transmit-Receive Unit receives base station in physical downlink control channel PDCCH resource-area for being inscribed in a transmission cycle Setting resource in send first instruction information, wherein it is described first instruction information be used to indicate in the transmission cycle With the presence or absence of the corresponding Downlink Control Information DCI of user equipment belonging to the Transmit-Receive Unit in the PDCCH resource area；
Processing unit, for judging the PDCCH resource area in the transmission cycle according to the first instruction information In whether there is the DCI；
If the first instruction information instruction in the transmission cycle in the PDCCH resource area there are the DCI, The Transmit-Receive Unit detects in the corresponding search space of user equipment described in the PDCCH resource area in the transmission cycle The DCI；
If the first instruction information indicates that the DCI is not present in the transmission cycle in the PDCCH resource area, The Transmit-Receive Unit detects the DCI in the PDCCH resource area not in the transmission cycle.
26, user equipment as described in Example 25, which is characterized in that the Transmit-Receive Unit is used in a transmission cycle Inscribed the first instruction information for receiving base station and being sent in the setting resource of physical downlink control channel PDCCH resource-area, comprising:
The Transmit-Receive Unit is used for:
The first DCI for receiving base station and sending in the setting resource in the PDCCH resource area is inscribed in the transmission cycle, Wherein, the first DCI includes an indicating bit table, is used to indicate each use in the group of user equipments where the user equipment Family equipment whether there is corresponding DCI in the transmission cycle in the PDCCH resource area, in the indicating bit table at least One bit is used to indicate the DCI that whether there is the user equipment in the PDCCH resource area in the transmission cycle.
27, user equipment as described in Example 25, which is characterized in that the processing unit is used for:
According at least one bit corresponding with the user equipment in the indicating bit table in the transmission cycle, sentence Break and whether there is the DCI in the PDCCH resource area in the transmission cycle.
28, the user equipment as described in any in embodiment 25-27, which is characterized in that the setting resource includes public Corresponding group of public search space of group of user equipments or the user equipment where search space or the user equipment The corresponding constant transmissions resource of place group of user equipments.
29, user equipment as described in Example 27, which is characterized in that the processing unit is specifically used for:
If the value of at least one bit is all the first setting value, the PDCCH described in the transmission cycle is determined There are the DCI in resource-area；
If the value of at least one bit is the second setting value at least one described bit, determine in the transmission cycle The DCI is not present in the interior PDCCH resource area.
30, the user equipment as described in any in embodiment 26-29, which is characterized in that the finger for including in the first DCI Show that a table is the indicating bit table of the group of user equipments where the user equipment, or is the user equipment where the user equipment The compression indicating bit table of group, wherein the compression indicating bit table is that the indicating bit gauge pressure contracting of the group of user equipments obtains.
31, the user equipment as described in any in embodiment 26-30, which is characterized in that the Transmit-Receive Unit is also used to:
In inscribed the first instruction for receiving base station and being sent in the setting resource in the PDCCH resource area of the transmission cycle Before information, the first configuration information that the base station is sent is received, includes the group of user equipments in first configuration information Corresponding public wireless network temporary identifier G-RNTI and the user equipment identify in the group in the group of user equipments, Wherein, the G-RNTI is group of user equipments pair where the user equipment for the DCI that user equipment identification receives The first DCI answered, described group of interior mark determining and institute in the indicating bit table of the group of user equipments for the user equipment State the corresponding bit of user equipment itself.
32, the user equipment as described in any in embodiment 26-30, which is characterized in that the Transmit-Receive Unit is also used to:
In inscribed the first instruction for receiving base station and being sent in the setting resource in the PDCCH resource area of the transmission cycle Before information, the second configuration information that the base station is sent is received, includes indicator wireless network in second configuration information The group mark of group of user equipments where network temporary identifier I-RNTI, the user equipment and the user equipment are set in the user Mark in group in standby group, wherein the I-RNTI is the first DCI for the DCI that user equipment identification receives, Described group of mark is for determining whether received DCI is corresponding first DCI of the group of user equipments, in described group Mark determines and the corresponding bit of the user equipment itself in the first DCI for the user equipment.
33, user equipment as described in Example 25, which is characterized in that the Transmit-Receive Unit is used for:
In the inscribed at least 1 bit letter for receiving base station and being sent in the setting resource in PDCCH resource area of the transmission cycle Breath, wherein at least 1 bit information is used to indicate in the transmission cycle in the PDCCH resource area with the presence or absence of institute State the Downlink Control Information DCI of user equipment, each bit information individual transmission for including at least 1 bit information.
34, the user equipment as described in embodiment 33, which is characterized in that the processing unit is used for:
Itself at least one corresponding bit information is determined at least one described bit information, according to the user At least one corresponding bit decision of equipment itself is in the transmission cycle with the presence or absence of described in the PDCCH resource area DCI。
35, the user equipment as described in embodiment 33 or 34, which is characterized in that the processing unit is specifically used for:
If the value of corresponding at least 1 bit information of the user equipment itself is all third setting value, determine described There are the DCI in the PDCCH resource area in transmission cycle；
If the value at least one bit for including in corresponding at least 1 bit information of the user equipment itself sets for the 4th When definite value, determines and the DCI is not present in the PDCCH resource area described in the transmission cycle.
36, the user equipment as described in any in embodiment 33-35, which is characterized in that the setting resource includes described The corresponding constant transmissions resource of user equipment.
37, the user equipment as described in embodiment 33-36, which is characterized in that the Transmit-Receive Unit is also used to:
In the inscribed at least 1 bit letter for receiving base station and being sent in the setting resource in PDCCH resource area of the transmission cycle Before breath, the third configuration information that the base station is sent is received, includes at least one resource-niche in the third configuration information Set the corresponding relationship with the user equipment, wherein each resource location is used for transmission the 1 of at least 1 bit information A bit information.
38, a kind of base station, which is characterized in that the base station includes:
Transmit-Receive Unit, for the setting resource in a transmission cycle, in physical downlink control channel PDCCH resource-area It is middle to send the first instruction information to user equipment, wherein the first instruction information is used to indicate the institute in the transmission cycle It states in PDCCH resource area with the presence or absence of the corresponding Downlink Control Information DCI of the user equipment；
If the first instruction information instruction in the transmission cycle in the PDCCH resource area there are the DCI, The Transmit-Receive Unit is also used to, in the transmission cycle in the search space of user equipment described in the PDCCH resource area The DCI is sent to the user equipment.
39, the base station as described in embodiment 38, which is characterized in that the Transmit-Receive Unit is used for:
In the transmission cycle, the first DCI is sent to user equipment in the setting resource in the PDCCH resource area, Wherein, the first DCI includes an indicating bit table, is used to indicate each in the group of user equipments where the user equipment User equipment whether there is corresponding DCI in the PDCCH resource area, at least one bit in the indicating bit table is used for Indicate the DCI that whether there is the user equipment in the PDCCH resource area in the transmission cycle.
40, the base station as described in embodiment 38 or 39, which is characterized in that the setting resource include public search space, Or user where corresponding group of public search space of group of user equipments where the user equipment or the user equipment sets It is standby to organize corresponding constant transmissions resource.
41, the base station as described in embodiment 39, which is characterized in that if the value of at least one bit is all the first setting Value, the first DCI indicate the DCI in the transmission cycle in the PDCCH resource area there are the user equipment； If the value of at least one bit is the second setting value at least one described bit, the first DCI instruction is in the transmission week The DCI of the user equipment is not present in phase in the PDCCH resource area.
42, the base station as described in any in embodiment 39-41, which is characterized in that the indicating bit for including in the first DCI Table is the indicating bit table of the group of user equipments where the user equipment, or is the group of user equipments where the user equipment Compress indicating bit table.
43, the base station as described in embodiment 39, which is characterized in that the Transmit-Receive Unit is also used to:
Before sending the first instruction information to user equipment in the setting resource in the PDCCH resource area, to the use Family equipment sends the first configuration information, includes the corresponding public wireless network of the group of user equipments in first configuration information Temporary identifier G-RNTI and the user equipment identify in the group in the group of user equipments, wherein the G-RNTI is used Identify that the DCI received is corresponding first DCI of group of user equipments where the user equipment, institute in the user equipment It states mark in group and is used for the user equipment itself determining corresponding bit in the indicating bit table of the group of user equipments.
44, the base station as described in any in embodiment 39-43, which is characterized in that the Transmit-Receive Unit is also used to:
Before sending the first instruction information to user equipment in the setting resource in the PDCCH resource area, to the use Family equipment sends the second configuration information, includes indicator radio network temporary identifier I-RNTI, institute in second configuration information The group mark of group of user equipments where stating user equipment and the user equipment identify in the group in the group of user equipments, In, the I-RNTI identifies that received DCI is the first DCI for the user equipment, and described group of mark is received for determination DCI whether be corresponding first DCI of the group of user equipments, mark is for the user equipment described in described group It is determined and the corresponding bit of the user equipment itself in first DCI.
45, the base station as described in embodiment 38, which is characterized in that the Transmit-Receive Unit is used in a transmission cycle, The first instruction information is sent to user equipment in the setting resource of physical downlink control channel PDCCH resource-area, comprising:
The Transmit-Receive Unit is used for:
In the transmission cycle, at least 1 bit is sent to user equipment in the setting resource in the PDCCH resource area Information, wherein at least 1 bit information is used to indicate whether there is in the PDCCH resource area in the transmission cycle The Downlink Control Information DCI of the user equipment, each bit information individual transmission for including in an at least bit information.
46, the base station as described in embodiment 45, which is characterized in that if the value of at least 1 bit information all sets for third Definite value, there are the DCI in the PDCCH resource area in the transmission cycle for at least 1 bit information instruction；；If institute The value for stating at least 1 bit information is all the 4th setting value, and at least 1 bit information instruction is described in the transmission cycle The DCI is not present in PDCCH resource area.
47, the base station as described in embodiment 45 or 46, which is characterized in that the setting resource includes the user equipment pair The constant transmissions resource answered.
48, the base station as described in any in embodiment 45-57, which is characterized in that the Transmit-Receive Unit is also used to:
Before sending at least 1 bit information to user equipment in the setting resource in the PDCCH resource area, to the use Family equipment sends third configuration information, includes at least one resource location and the user equipment in the third configuration information Corresponding relationship, wherein each resource location is used for transmission 1 bit information at least 1 bit information.
49, a kind of equipment, which is characterized in that including processor, memory and transceiver,
The memory, is stored with software program；
The processor is received for calling and executing the software program stored in the memory by the transceiver Data are sent out to realize the method as described in any one of embodiment 1 to 24.
50, a kind of computer-readable medium, which is characterized in that the computer-readable medium storage has computer instruction, When described instruction is run on computers, so that computer executes the method as described in any one of embodiment 1 to 24.
51, a kind of device, which is characterized in that described device be connected with memory or described device in have memory, it is described Device reads and executes the software program stored in the memory, to realize such as the described in any item methods of embodiment 1 to 24.
52, the device as described in embodiment 51, which is characterized in that described device is chip or chip system.
53, a kind of system, which is characterized in that including the user equipment as described in embodiment of the method 1-13 is any, He Rufang Method
Any base station embodiment 14-24.
54, a kind of system, including base station and user equipment characterized by comprising
The base station, for the setting resource in a transmission cycle, in physical downlink control channel PDCCH resource-area Middle to send the first instruction information to the user equipment, user equipment is inscribed in a transmission cycle and receives base station in physical down The the first instruction information sent in the setting resource in control channel PDCCH resource area, wherein the first instruction information is for referring to Show and whether there is the corresponding Downlink Control Information DCI of the user equipment in the PDCCH resource area in the transmission cycle； The user equipment judges to whether there is in the PDCCH resource area in the transmission cycle according to the first instruction information The DCI；
If the first instruction information instruction in the transmission cycle in the PDCCH resource area there are the DCI, The base station is set in the search space of user equipment described in the PDCCH resource area to the user in the transmission cycle Preparation send the DCI, and user equipment user equipment described in the PDCCH resource area in the transmission cycle is corresponding The DCI is detected in search space；
If the first instruction information indicates that the DCI is not present in the transmission cycle in the PDCCH resource area, The user equipment detects the DCI in the PDCCH resource area not in the transmission cycle.
Detailed description of the invention
Fig. 1 is a kind of wireless communication system schematic diagram of a scenario provided by the present application；
Fig. 2 is a kind of method flow diagram for transmitting Downlink Control Information provided by the present application；
Fig. 3 is a kind of schematic diagram in physical downlink control channel resource area provided by the present application；
Fig. 4 is that a kind of indicating bit provided by the present application indicates to be intended to；
Fig. 5 is that another indicating bit provided by the present application indicates to be intended to；
Fig. 6 is that a kind of Bloom filter provided by the present application indicates schematic diagram；
Fig. 7 is the schematic diagram in another physical downlink control channel resource area provided by the present application；
Fig. 8 is a kind of Bloom filter schematic diagram provided by the present application；
Fig. 9 is a kind of user equipment (ue) device schematic diagram provided by the present application；
Figure 10 is a kind of base station apparatus schematic diagram provided by the present application；
Figure 11 is a kind of hardware structure diagram of equipment provided by the present application.
Specific embodiment
The embodiment of the present application is described in further detail below in conjunction with attached drawing.
The embodiment of the present application provides a kind of method and device for transmitting Downlink Control Information, deposits in the prior art for solving User equipment when blind detection of base station is sent to the Downlink Control Information DCI of the user equipment itself, the big problem of power consumption. Wherein, method and apparatus be based on the same inventive concept, since the principle that method and apparatus solves the problems, such as is similar, equipment Implementation with method can be with cross-reference, and overlaps will not be repeated.
Hereinafter, the part term in the application is explained, to make those skilled in the art understand that.
1) user equipment (user equipment, UE), also referred to as terminal device, mobile station (mobile station, MS), mobile terminal (mobile terminal, MT) etc., is a kind of equipment for providing a user voice and/or data connectivity, For example, handheld device, mobile unit etc. with wireless connecting function.Currently, the citing of some terminals are as follows: mobile phone (mobile phone), tablet computer, laptop, palm PC, mobile internet device (mobile internet Device, MID), wearable device, virtual reality (virtual reality, VR) equipment, augmented reality (augmented Reality, AR) equipment, the wireless terminal in Industry Control (industrial control), unmanned (self Driving the wireless terminal in wireless terminal, remote operation (remote medical surgery) in), smart grid The wireless terminal in wireless terminal, transportation safety (transportation safety) in (smart grid), smart city The wireless terminal etc. in wireless terminal, wisdom family (smart home) in (smart city), UE in the application can be with (ultra-reliability low latency communication, URLLC) UE is communicated for highly reliable low time delay.
2) base station (base station, BS), is the equipment that terminal device is linked into wireless network in network.The net Network equipment is the node in wireless access network, and can also be known as wireless access network (radio access with the network equipment Network, RAN) node (or equipment).Currently, the citing of some network equipments are as follows: gNB, transmission receiving point (transmission reception point, TRP), evolved node B (evolved Node B, eNB), wireless network control Device (radio network controller, RNC) processed, node B (Node B, NB), base station controller (base station Controller, BSC), base transceiver station (base transceiver station, BTS), Home eNodeB is (for example, home Evolved NodeB or home Node B, HNB), Base Band Unit (base band unit, BBU) or Wireless Fidelity (wireless fidelity, Wifi) access point (access point, AP) etc..In addition, in a kind of network structure, it is described The network equipment may include centralized unit (centralized unit, CU) node and distribution unit (distributed unit, DU) node.This structure splits the protocol layer of eNB in long term evolution (long term evolution, LTE) system, portion The function of protocol layer is divided to be placed on CU centralized control, the function of being left part or all of protocol layer is distributed in DU, is concentrated and is controlled by CU DU processed.
3) transmission cycle, base station send the period of data to user equipment, and the transmission cycle in the application is user equipment It is transmitted in the transmission cycle of transmission cycle or user equipment under Idle state under the wake states of connected state, the application The duration in period can be 10ms.
4) the first instruction information, is used to indicate in transmission cycle in PDCCH resource area with the presence or absence of the user equipment Corresponding Downlink Control Information, which can be the first DCI, and (and one kind of DCI can also be known as indicator Downlink Control Information I-DCI can also be called with other titles), it is also possible at least one bit information.
5) indicating bit table includes multiple bits, is existed with each user equipment at least one bit indication group of user equipments It whether there is corresponding DCI in the transmission cycle in the PDCCH resource area.
6) public search space (common search space, CSS), multiple user equipmenies can be in common search The first instruction information that base station is sent to user equipment is retrieved in space.
7) the first setting value is binary number, is used to indicate user equipment PDCCH resource in the transmission cycle The DCI is detected in the corresponding search space of user equipment described in area, specific value is 1 or is 0, not with the second setting value Together.
8) the second setting value is binary number, is used to indicate user equipment PDCCH resource in the transmission cycle The DCI is not detected in the corresponding search space of user equipment described in area, specific value is 0 or is 1, not with the first setting value Together.
9) third setting value is binary number, is used to indicate described in user equipment judges in the transmission cycle The DCI is detected in PDCCH resource area, specific value is 0 or is 1, different from the 4th setting value.
10) the 4th setting value is binary number, is used to indicate described in user equipment judges in the transmission cycle The DCI is not detected in PDCCH resource area, specific value is 1 or is 0, different from third setting value.
11) public wireless network temporary identifier (group radio network tempory identity, G-RNTI), Indicate the shared RNTI of one group of user equipment, the corresponding group of user equipments of a G-RNTI, an I-DCI is one for identification The corresponding I-DCI of a UE group.
12) indicator radio network temporary identifier (indicators radio network tempory identity, I-RNTI the radio network temporary identifier of I-DCI) is indicated, I-RNTI described herein can be called with other titles, is used for The user equipment identifies that received DCI is the first DCI.
13) physical down instruction channel (physical downlink indicator channel, PDICH), for referring to Show whether there is downlink data, the title is not defined in the embodiment of the present application, as long as 1 bit information can be transmitted.
14) physical layer hybrid automatic repeat-request indicator channel (physical hybrid-ARQ indicator Channel, PHICH), the data of sender's transmission whether are had correctly received with 1 bit indication.
15) resource unit (resource element, RE), an Orthodoxy Frequency Division Multiplex (orthogonal Frequency division multiplexing, OFDM) the minimal physical signal that constitutes of symbol and subcarrier transmit it is single Member.
16) multiple, refer to two or more.
In addition, it is necessary to understand, in the description of the present application, the vocabulary such as " first ", " second " are only used for distinguishing description Purpose, be not understood to indicate or imply relative importance, can not be interpreted as indication or suggestion sequence.
Present document relates to abbreviation and Key Term definition:
This application can be applied to the scene of wireless communication system, including multiple BS, each BS can be in coverage area Multiple UE communication service is provided, UE can move, and may be at the coverage area of different BS in different positions, and BS can be with Downlink data is sent to UE, it is specific as shown in Figure 1.
URLLC business in 5G:
3GPP is formulating 5G communication standard at present.It requires to support super reliable low time delay, that is, URLLC business in 5G.URLLC Business need UE or BS completes the data transmission in a direction in 0.5 millisecond.For uplink, BS is configured with shared upper Row data transmission resources area, UE can be randomly choosed in shared transmitting uplink data resource-area immediately when having data transmission One or more resource units are transmitted, and achieve the purpose that low time delay.And for downlink data transmission, if it has to using biography The transmission mode of system, i.e. BS first transmit a downlink DCI, the transmission location of instruction downlink data and other phases in downlink DCI Parameter is closed, UE first receives downlink DCI, then the downlink data transmission resource location indicated into downlink DCI receives downlink data.For Low time delay, UE can not detect downlink DCI using DRX technology certain interval of time, but each transmission of having to is all Phase will detect downlink DCI, to reach low time delay purpose.Son and in order to reach low time delay, in this transmission cycle ratio LTE Frame (1 millisecond of duration) is shorter, such as a time slot (half of subframe), or even only 2 OFDM symbols, the most short transmission week of support Phase is 0.125 millisecond.Shorter transmission cycle means more frequently to detect downlink DCI, this causes UE power consumption more serious.According to Foregoing description detects downlink DCI, needs by multiple blind examination, and URLLC business actual amount of data and little, data are transmitted simultaneously Infrequently, this does not receive downlink DCI but after leading to UE most of the time and being exhaustive maximum blind examination number, in vain many electricity of consumption Amount.
The scheme for providing transmission Downlink Control Information to the application with reference to the accompanying drawing is specifically described.
It referring to fig. 2, is a kind of method flow diagram for transmitting Downlink Control Information provided by the present application.This method comprises:
Step 201, base station send the first instruction information to user equipment in a transmission cycle.
Step S202, user equipment receives above-mentioned base station in physical downlink control channel PDCCH in the transmission cycle The the first instruction information sent in the setting resource of resource-area, wherein the first instruction information is used to indicate in the transmission It whether there is the corresponding Downlink Control Information DCI of the user equipment in period in the PDCCH resource area.In a kind of embodiment party In formula, the corresponding DCI of the user equipment and " DCI " cited below also refers to downlink recited above DCI。
Step S203, the described user equipment judges described in the transmission cycle according to the first instruction information It whether there is the DCI in PDCCH resource area.
If step S2041, the described first instruction information instruction exists in the PDCCH resource area in the transmission cycle The DCI, the then user equipment corresponding search of user equipment described in the PDCCH resource area in the transmission cycle The DCI is detected in space.
If step S2042, the described first instruction information indicates to be not present in the PDCCH resource area in the transmission cycle The DCI, then the user equipment detects the DCI in the PDCCH resource area not in the transmission cycle.
By the above method, user equipment is believed according to the first instruction that the base station received is sent in a transmission cycle Breath determines the DCI that whether there is the user equipment in PDCCH resource area in the transmission cycle, if the first instruction information Indicate the DCI that the user equipment is not present in PDCCH resource area in the transmission cycle, then the user equipment is not needed in institute The DCI for detecting the user equipment in transmission cycle in the PDCCH resource area is stated, blind examination number is reduced, reduces electric quantity consumption, though Right each transmission cycle requires detection the first instruction information, but detects electricity consumed by the first instruction information UE and be much smaller than UE Blindly detect electricity required for DCI.
In the embodiment of the present application, when the first instruction information instruction PDCCH resource area in the transmission cycle In there are in the case where the DCI, it is corresponding that base station has also issued user equipment in the transmission cycle for issuing the first instruction information DCI, i.e., it is described first instruction information, the DCI (the corresponding DCI of the user equipment i.e. described herein, concretely under Row DCI) and downlink data, that is, these information are transmitted in the same transmission cycle, wherein the downlink data is described Data scheduled in DCI.
In a kind of possible embodiment, the user equipment can receive described first in each transmission cycle and refer to Show information, detects electricity consumed by downlink DCI in each transmission cycle to reduce the user equipment.
In embodiment itself, the first instruction information in step S201 is the first DCI or at least one bit information two Kind situation, is separately below illustrated two kinds of situations.
Situation one, the user equipment are inscribed in the transmission cycle receives base station in the setting in the PDCCH resource area The first DCI sent in resource.
Specifically, the first DCI includes an indicating bit table, the user equipment being used to indicate where the user equipment Each user equipment whether there is corresponding DCI, the indicating bit in the transmission cycle in group in the PDCCH resource area At least one bit in table is used to indicate in the transmission cycle in the PDCCH resource area to be set with the presence or absence of the user Standby DCI, wherein the first DCI is referred to as I-DCI.
The schematic diagram in physical downlink control channel resource area in transmission cycle, as shown in Figure 3, wherein wherein 301 indicate Physical downlink control channel resource area in one transmission cycle, 302 indicate to transmit I- in physical downlink control channel resource areas The setting resource-area of DCI, i.e. setting resource-area, the setting resource includes public search space or user equipment institute In the corresponding constant transmissions of group of user equipments where corresponding group of public search space of group of user equipments or the user equipment Resource.303 be the specific search space UE (UE-specific search space, USS) of a UE, and 304 be an I- DCI, 305 indicate a downlink DCI.For example, UE receives a user equipment where itself in setting resource-area 402 After the corresponding I-DCI 404 of group, if indicating in I-DCI 404, the UE does not have downlink DCI, UE not to need to arrive itself again The downlink DCI of blind examination oneself in USS 403.If indicating in I-DCI 404, the UE has downlink DCI, USS of the UE to itself The downlink DCI of blind examination oneself in 403, i.e. DCI 405.If UE detects downlink DCI, according to the control in the downlink DCI detected Information processed receives downlink data or obtains the configuration information in the downlink DCI.In the embodiment of the present application, Fig. 3 is only as signal Figure does not imply that the time-frequency domain information in physical downlink control channel resource area and transmits resource-area and the physical down of I-DCI The positional relationship of control channel resource-area.
In the embodiment of the present application, the institute in the transmission cycle is used to indicate using at least one bit in indicating bit table The DCI that whether there is the user equipment in PDCCH resource area is stated, including uses a bit indication or uses at least Two bit indications, two kinds of specific embodiments, are separately below specifically described two kinds of embodiments.
Specific embodiment one, below in indicating bit table use one user equipment of a bit indication whether in the biography For the DCI that whether there is the user equipment in the defeated period in the PDCCH resource area, it is described in detail.
Indicating bit table is the indicating bit table of the group of user equipments where the user equipment, or for where the user equipment Group of user equipments compression indicating bit table.That is the indicating bit table original that can be one group of user equipment comprising the user equipment Beginning indicating bit table is also possible to the compression indicating bit table comprising one big group user equipment.
(1) when the original indicating bit table of an indicating bit epitope, it is used to indicate one group of user equipment, which sets Include 24 user equipmenies in standby, the schematic diagram of indicating bit table as shown in figure 4, when in indicating bit table each bit respectively at setting UE it is corresponding, when the value of bit be 1 when, indicate the corresponding user equipment of bit PDCCH in the transmission cycle There are DCI in resource-area, for example, first bit corresponding UE 1 in Fig. 4, the value of bit is 1, indicate UE1 in the transmission cycle There are DCI in the interior PDCCH resource area.When the value of bit is 0, indicate the corresponding user equipment of the bit in the transmission DCI is not present in period in the PDCCH resource area, for example, third bit corresponding UE 3 in Fig. 3, the value of bit is 0, is indicated DCI is not present in UE3 in the transmission cycle in the PDCCH resource area, other and so on repeat no more.
It is inscribed in the user equipment in the transmission cycle and receives base station in the setting resource in the PDCCH resource area Before the first DCI sent, the user equipment receives the first configuration information that the base station is sent, and described first matches confidence It include the corresponding public wireless network temporary identifier G-RNTI of the group of user equipments and the user equipment in breath described Mark in group in group of user equipments, wherein the G-RNTI is the use for the DCI that user equipment identification receives Corresponding first DCI of group of user equipments where the equipment of family, described group of interior mark is for the user equipment in the user equipment It is determined and the corresponding bit of the user equipment itself in the indicating bit table of group.In the embodiment of the present application, if the user sets Standby to be included in multiple group of user equipments, the base station needs multiple group of user equipments where the user equipment are corresponding Multiple G-RNTI are sent to user equipment.The G-RNTI of corresponding this group of I-DCI of each group of user equipments carries out scrambling and follows Ring redundancy check (cyclic redundancy check, CRC), when user equipment setting resource in retrieve in I-DCI, I-DCI is descrambled using preconfigured multiple G-RNTI, and base station is that each UE distributes equipment in a group in group It indicates, so that BS and UE determines position of the corresponding bit of UE in dial gauge according to device identification in organizing.
Wherein, device identification is substantially an index in organizing, and is used to indicate the corresponding bit of the UE in indicating bit table Position.Such as when a UE group up to 24 UE, the value range for organizing interior device identification can be 0~23.
(2) when an indicating bit table is compression indicating bit table, one big group user equipment, the big group of use are used to indicate It include more user equipment, such as more than 24 user equipmenies in the equipment of family, but since the downlink data of each UE is diluter It dredges, then the bit number that 1 is set in indicating bit table generally much less than takes 0 bit number, then indicating bit table can compress, to scheme 5 examples illustrate the compression indicating bit table of one of situation, by the user equipment of 3 smallest sizes be combined into one big group into Row compression, the size constancy of corresponding big group of indicating bit table, therefore the size constancy of I-DCI.The size constancy of I-DCI, keeps away Exempt from UE when receiving I-DCI because having different I-DCI sizes and multiple blind examination, reduces power consumption.
Comprehensive (one) (two) two kinds of indicating bit tables, in the embodiment of the present application, corresponding group of original indicating bit table is known as group, The group that the corresponding multiple groups of compression indicating bit table merge is known as big group, determines its first instruction information in group pair for convenience of UE In the I-DCI answered or in organizing corresponding I-DCI greatly, BS can send two G-RNTI for each UE, and a G-RNTI is used Corresponding I-DCI is organized greatly for descrambling in the corresponding I-DCI of descrambling group, another G-RNTI.Such as each group of packet of group Containing 24 UE, organize every group greatly and include 48 or 72 UE etc., the present invention to it without limitation.
Further, BS can configure each UE in multiple UE groups of different sizes, and by the G- of each UE group RNTI is sent to UE.For UE when receiving I-DCI, the G-RNTI according to used in the I-DCI received may know that I-DCI is corresponding The scale of UE group, such as the scale of the corresponding UE group of the first G-RNTI is 24 UE, the scale of the corresponding UE group of the 2nd G-RNTI 48 UE, the scale of the corresponding UE group of the 3rd G-RNTI is 96 UE, the present invention to it without limitation.It illustrates, it is assumed that BS could support up 96 UE, and each UE is individually identified as 0~95, be properly termed as the short mark in part.BS can be by the 0th to the 23rd UE assigns to the 1st group, and the 24 to 47th UE assigns to the 2nd group, and the 48 to 71st UE assigns to the 3rd group, and the 72 to 95th UE assigns to the 4th Group.1st group to the 4th group be all smallest size UE group, the original indicating bit table length of each group of needs is 24 bits, each UE The corresponding G-RNTI of group.The UE of 1st group and the 2nd group is further merged into the 5th group by BS, is merged into for the 3rd group and the 4th group 6 groups, 1 group and the 3rd group further can also be merged into the 7th group, the 2nd group and the 4th group are merged into the 8th group, by 1 group and the 4th Group is merged into the 9th group, and the 2nd group and the 3rd group are merged into the 10th group.5th group to the 10th group is all biggish group, also there is one respectively A G-RNTI.BS can according to circumstances send corresponding 1st group to the 4th group of totally 4 I-DCI when sending I-DCI respectively, or Person sends corresponding 1st group, the 2nd group and the 6th group of totally 3 I-DCI or the 7th group and the 8th group of totally 2 I-DCI, the present invention Without limitation to it.The indicating bit table transmitted in 1st group to the 4th group corresponding I-DCI is original indicating bit table, the 5th group to The indicating bit table transmitted in 10 groups of corresponding I-DCI is compression indicating bit table, and compression indicating bit table is no more than 24 bits.BS is also All UE can be placed in a group, it is determined as the 11st group, be no more than if the indicating bit gauge pressure of corresponding 96 UE can be reduced to 24 bits, then BS only sends the 11st group of corresponding I-DCI.UE is after receiving an I-DCI, if wherein included is compression instruction Position table, it should compression indicating bit table is first launched into original indicating bit table, according to oneself group in the corresponding UE group of the I-DCI Whether interior device identification positions the bit of oneself in original indicating bit table, determined under oneself having according to the value of the bit of oneself Row DCI.
In order to support a UE in multiple UE groups of different sizes, an I-RNTI can also be only used and scramble all I- The CRC code of DCI indicates the corresponding group number of the I-DCI comprising a group number field in I-DCI, such as group number is above-mentioned specific The 1st group or the 2nd group or the 5th group etc. in citing.After UE receives I-DCI success using I-RNTI, indicated according to group number field Group number be known that original indicating bit table size and I-DCI transmission be original indicating bit table or compression indicating bit Table, for example, if being above-mentioned the 1st group, then the indicating bit table transmitted in corresponding I-DCI is original indicating bit table, if it is upper The 5th group stated or the 11st group etc., then the indicating bit table transmitted in corresponding I-DCI is compression indicating bit table.The embodiment of the present application In, the corresponding I-DCI of big UE group is sent as far as possible, to reduce the quantity of I-DCI in a transmission cycle, saves system resource.
In the embodiment of the present application, the compression side of indicating bit table can be indicated comprising a compress mode field in I-DCI Formula, BS can make to compress according to the distribution situation for the bit for taking the first setting value in original indicating bit table using different compress modes As a result it can be sent in the size that an I-DCI is limited, and indicate compress mode using compress mode field.For example, I-DCI is total It is comprising a compress mode field, indicate to transmit in I-DCI when value is 0 is original indicating bit table, and other values is taken to indicate What is transmitted in I-DCI is compression indicating bit table and specific compress mode.If compress mode field only has 1 bit, only indicate What is transmitted in I-DCI is that original indicating bit table or compression indicating bit table, compress mode are fixed.Alternatively, including original indicating bit Compress mode field is not present in the I-DCI of table, and including can be more with a small amount of bit indication in the I-DCI for compress indicating bit table One of kind of compress mode, such as with 2 bit indications, 4 kinds of compress modes, compress indicating bit table and be no more than 22 bits.It can Compress mode field to be regarded as to a part of compression indicating bit table, then indicating bit table is compressed no more than 24 bits.
In the embodiment of the present application, UE number for including to a UE group without limitation, to the mode of compression indicating bit table Without limitation, travel compression mode can be used or compress mode of leaving out the beginning and the end.
In a kind of mode middle age of possible realization, BS can be distributed each UE in a UE group, and indicating bit table does not make With compress mode, then BS only needs to add G-RNTI device identification either I-RNTI in group that group number is added to add device identification hair in group Give UE.UE can not also be grouped by BS, then BS issue UE configuration information need to comprising the local short mark of BS of I-RNTI, UE, And it will affect the length of indicating bit table because of the variation of UE quantity to the dimension information of UE notice I-DCI immediately.BS how will The configuration information of UE is sent to UE, and the present invention is not construed as limiting.
It possible is realized at that time, when a UE pertains only to a UE group, BS can specify this UE group a kind of The constant transmissions position of corresponding I-DCI, UE do not have to blind examination itself corresponding I-DCI ready to receive.When a UE be related to it is multiple UE group, BS cannot transmit I-DCI determining resource location, then UE needs the blind examination I-DCI in certain scope of resource.
Illustrate, it is assumed that UE1 and UE2 respectively in two different groups, but simultaneously again at one big group, if UE1 The group at place and the group where UE2 all have more UE to have downlink DCI respectively, take first in the original indicating bit table organized greatly The bit of setting value and take the second setting value bit almost and distribution it is relatively uniform cause to compress, cannot be in an I- The indicating bit table organized greatly is transmitted in DCI, then BS can only send the I-DCI of corresponding Liang Ge group respectively.And if small where UE1 Group and the group where UE2 all have respectively it is less have downlink DCI even without UE, or there is a large amount of UE to have downlink DCI (one The bit of the first setting value or the second setting value is taken to account for absolute majority in a table, indicating bit table can compress), or have downlink The UE's of DCI is unevenly distributed, and concentrates on some section, so that the corresponding original indicating bit table organized greatly may be compressed to foot Enough small to transmit in an I-DCI, then BS sends the corresponding I-DCI of group greatly at the common place UE1 and UE2, just without hair Send two I-DCI.
When UE sends I-DCI, using higher polymerization grade (aggregation level, AL), it is reliable to improve transmission Property.For example, AL can be 4 or 8, AL value is higher, and the transmission reliability of I-DCI is higher.Also, an AL value is used, can be kept away Exempt from UE blind examination I-DCI in different AL values, reduces the number of UE blind examination I-DCI, be conducive to UE power saving.
Specific embodiment two
Below to use at least two bit indications, one user equipment whether in the transmission cycle in indicating bit table For the DCI that whether there is the user equipment in the PDCCH resource area, wherein a mode is Bloom filter Instruction, it is specific as follows.
A Bloom filter (bloom filter) is carried in the present embodiment in I-DCI, Bloom filter includes multiple Bit, a UE correspond to K bit in Bloom filter, and K is at least 2, may there is 1 in the corresponding bit of any two UE It is identical to multiple bits, but the corresponding K bit of two UE is not exactly the same under normal circumstances, as shown in Figure 6.Assuming that grand mistake The initial value of each bit is the second setting value such as " 0 " in filter, and the first bit and the second bit are used to indicate UE1, the first ratio Special and the first bit value is all 1, therefore has the corresponding DCI of UE1 in PDCCH resource area in transmission cycle.Second bit and Third bit is used to indicate UE2, third bit 0, therefore does not have UE2 corresponding in PDCCH resource area in transmission cycle DCI.First bit and third bit are used to indicate UE3, third bit 0, therefore do not have in PDCCH resource area in transmission cycle There is the corresponding downlink DCI of UE2.Fig. 6 is only the one of specific example of Bloom filter.
If a UE has downlink DCI, BS that the corresponding K bit of the UE is all set to the first setting value such as " 1 ".When one After UE receives I-DCI, it is found that K bit for it is corresponded in Bloom filter is all the first setting value, then it is assumed that has downlink DCI, but the characteristics of according to Bloom filter, this may be accidentally to indicate, there is no the corresponding downlink DCI of the UE for actual capabilities, but When any of the corresponding K bit of UE bit takes the second setting value, which does not have downlink DCI certainly.In view of UE The case where having downlink DCI, is less, i.e., in most transmission cycles, UE is no downlink DCI, then utilizes Bloom filter this Feature, it is ensured that UE will not miss the downlink DCI of not timing appearance, and can not spend detection definitely in most cases Downlink DCI reduces electric quantity consumption.
UE can be divided into multiple groups by BS, and each UE group uses a Bloom filter.Using Bloom filter, each UE Group may include more UE, and the bit that Bloom filter needs is less, for example, each UE group includes 48 or 72 UE, and Bloom filter only has 24 bits, by 24 bit indications 48 or 72 UE, can save system resource.
Situation two, the user equipment are inscribed in the transmission cycle receives base station in the setting resource in PDCCH resource area At least 1 bit information of middle transmission.
Specifically, at least 1 bit information be used to indicate in the transmission cycle in the PDCCH resource area whether There are the Downlink Control Information DCI of the user equipment, each bit information for including at least 1 bit information is independently passed Defeated, the setting resource in the PDCCH resource area can be the resource-area PDICH, and 1 bit information can be used one PDICH resource is transmitted, and the setting resource includes the corresponding constant transmissions resource of the user equipment.
The schematic diagram in another physical downlink control channel resource area in transmission cycle, as shown in Figure 7, wherein 701 tables Show the physical downlink control channel resource area in a transmission cycle, 702 indicate to be included in physical downlink control channel resource area In the resource-area PDICH, 703 be the USS of a UE, and 704 be the PDICH resource of the UE, and 705 indicate a downlink DCI.Its Middle physical downlink control channel resource area 701 is a part of whole transfer resources in a transmission cycle, other to deposit Uplink control channel resource area, transmitting uplink data resource-area or downlink data transmission resource-area do not represent.Physics Down control channel resources area 701 may include one or more OFDM symbols in the time domain, may carry comprising entire on frequency domain A part of wave or carrier wave.The shape in physical downlink control channel resource area 701 shown in Fig. 7 do not imply that any frequency domain or when Meaning on domain is merely representative of one piece of radio resource.The resource-area PDICH shown in Fig. 7 702 is in physical downlink control channel resource The position in area 701 is not offered as actual location of the resource-area PDICH 702 in physical downlink control channel resource area 701, only table Show that the resource-area PDICH 702 is a part in physical downlink control channel resource area 701.The position of USS shown in Fig. 7 only shows Meaning, physical location should be calculated according to the calculation formula of regulation and be determined, the present invention does not limit how to calculate USS.It is shown in Fig. 7 The position of PDICH is only illustrated, and physical location calculation formula should calculate determination according to the rules, or true according to the configuration of BS It is fixed.
In one possible implementation, the user equipment is inscribed in the transmission cycle and receives base station in PDCCH Before at least 1 bit information sent in the setting resource of resource-area, the user equipment receive that the base station sends the Three configuration informations include the corresponding relationship of at least one resource location and the user equipment in the third configuration information, In, each resource location is used for transmission 1 bit information.
In the embodiment of the present application, using at least one bit information instruction PDCCH resource area in the transmission cycle In whether there is the DCI of the user equipment, including use the instruction of 1 bit information or believed using at least two bits Breath two kinds of specific embodiments of instruction, are separately below specifically described two kinds of embodiments.
Specific embodiment three, below to use bit information to indicate a user equipment whether in the transmission cycle For the DCI that whether there is the user equipment in the interior PDCCH resource area, it is described in detail.
If the value of corresponding at least 1 bit information of the user equipment itself is all third setting value, the user is set It is standby to judge to detect the DCI, institute in the PDCCH resource area in the transmission cycle according at least 1 bit information Stating third setting value can be 1 or 0, different from the 4th setting value；If corresponding at least 1 bit information of the user equipment itself In the value of at least one bit when being four setting values, the user equipment judges according at least 1 bit information not in institute It states and detects the DCI in the PDCCH resource area in transmission cycle, the 4th setting value can be 0 or 1, set with third Definite value is different.
In the embodiment of the present application, a PDICH occupies seldom transfer resource, as long as 1 bit information, the application can be transmitted The transmission of PDICH can use the transmission technology of PHICH in prior art LTE in embodiment, and every 8 PHICH occupy 12 in LTE A resource unit RE forms a PHICH group, and the different PHICH in same PHICH group are orthogonally superimposed using Walsh code sequence Signal, average each PHICH occupy 1.5 RE, and the signal distributions of each PHICH are on 12 RE.Wherein, the transmission of PDICH Also other technologies can be used, for example, each PDICH monopolizes one or two RE etc..The present invention does not limit PDICH and specifically passes Defeated mode.
One PDICH resource is the resource that a PDICH is occupied, and using existing transmission technology, 8 PDICH constitute one A PDICH group occupies 12 RE jointly, wherein each PDICH uses different Walsh code sequences, then a PDICH resource is Refer to its occupied 12 RE and used Walsh code sequence.
The resource-area PDICH can be located at the given zone in physical downlink control channel resource area as defined in BS is specified or system Domain.Position of the corresponding PDICH resource of each UE in the resource-area PDICH can explicitly be configured by BS, can also be according to formula Calculating acquisition is carried out, specifically, the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (cell RNTI, C-RNTI) using UE calculates, or is made It is calculated with the C-RNTI of UE and the ID number of transmission cycle.When transmission cycle is subframe, then the ID number of transmission cycle is exactly subframe numbers (for example, a subframe includes 2 time slots).When transmission cycle is time slot (for example, a time slot includes 14 OFDM symbols), then The ID number of transmission cycle is exactly timeslot number.Transmission cycle can be period more smaller than time slot, such as 2 OFDM symbols, can be with Referred to as mini-slot, then the ID number of transmission cycle is exactly mini-slot number.BS can also to each UE configure a different calculating because Son, the position of the PDICH for calculating UE, so that the position of the counted PDICH of each UE is different.The Walsh code sequence that UE is used Column can be configured by BS, can also be calculated according to formula.
When being calculated by the way of PDICH resource location using formula, calculation formula can be with are as follows:
IPDICH=(AUE* (NC-RNTI+P) * Q) mod NPDICH
Wherein, IPDICH indicates call number of the PDICH of UE in multiple PDICH resources that the resource-area PDICH is included. The corresponding call number of each PDICH resource, the call number of PDICH resource have determined corresponding running time-frequency resource and walsh code sequence Column, AUE indicate that BS for the relevant calculating factor of UE of UE configuration, is configured by BS, can also not used, NC-RNTI indicates UE's The value of C-RNTI, P are a prime numbers, can also not used, and Q is another prime number, can also not used, tri- numbers of AUE, P, Q Value is in order to make calculated result have preferable distribution, so that the IPDICH of each UE is as different as possible.Different UE has phase Same IPDICH may will affect the power saving effect of UE, i.e., multiple UE can share a PDICH resource, for sharing PDICH Multiple UE of resource are judged certainly with it using other UE of identical PDICH resource accordingly if only one UE has downlink DCI Oneself has downlink DCI, then goes the USS of oneself to attempt to receive downlink DCI, does not receive downlink DCI finally, only wastes primary Electricity can't generate malfunction.NPDICH indicates the PDICH number of resources for including in the resource-area PDICH, it is assumed for example that The resource-area PDICH includes 24 RE, then it is 16 PDICH resources that the resource-area PDICH, which includes 2 PDICH groups,.Mod indicates that mould removes.
In the embodiment of the present application, above-mentioned formula calculating is also can be used in the corresponding Walsh code sequence of UE, will be in formula NPDICH changes the quantity of Walsh code sequence into.
In a kind of possible realization, due to the corresponding PDICH resource of UE be it is determining, UE receive PDICH be not required to Blind examination is wanted, the information of clear information content is received in specific resource.And PDICH only includes 1 bit information, is received The energy consumption that PDICH needs is much smaller than energy consumption required for DCI of blind examination.
Specific embodiment four, below with use at least two bit informations indicate a user equipment whether in the transmission For the DCI that whether there is the user equipment in period in the PDCCH resource area, wherein a mode is that cloth is grand Filter instruction, is described in detail.
The present embodiment is accounted for using Bloom filter (bloom filter) technology combination PDICH to reduce the resource-area PDICH Stock number.The description as described in can refer in embodiment two Bloom filter, it is assumed that the resource-area PDICH includes M PDICH money Source can transmit M bit information, can be a Bloom filter by this M organized, i.e. BS will be every in Bloom filter A bit transmits in corresponding PDICH.Whether each UE has downlink DCI using K bit indication in Bloom filter, i.e., UE each period receives corresponding K PDICH, when the bit in this K PDICH all takes third setting value, such as when " 1 ", Indicate that the UE there may be downlink DCI, when at least one bit is the 4th setting value in this K bit, such as when " 0 ", then the UE Certainly there is no downlink DCI.Using Bloom filter, under M bit can serve to indicate that whether each UE has in the UE more than M Row DCI, this reduces the stock numbers that the resource-area PDICH occupies.
By taking Fig. 8 as an example, the small frame of each in Fig. 8 indicates 1 bit of PDICH carrying for the use of specific Bloom filter Information, the bit information of multiple PDICH carryings, which is combined, just forms a Bit String, and the transmission technology of PDICH can use The resource-area PDICH described in embodiment three includes 24 RE, then shares 16 PDICH resources, can also transmit 16 Bit information, Fig. 8 only show 10 bit informations as signal.In Fig. 8, the indicating bit of UE1 is bit 0 and 2, the finger of UE2 Show that position is bit 2 and 6, the indicating bit of UE3 is bit 6 and 8, and the indicating bit of UE4 is bit 0 and 6.UE1 and UE4 have shared bit 0, UE1 and UE2 has shared bit 2, and UE2 and UE4 have shared bit 6.BS, which indicates UE1, UE2, downlink DCI, therefore cloth is grand Bit 0,2,6 in filter is set to third setting value " 1 ", and other bits are set to the 4th setting value " 0 ".UE1 and UE2 and UE4 The indicating bit for detecting itself is all " 1 ", then all thinks itself there is DCI, wherein UE1 and UE2 will test the downlink of oneself DCI, due to UE4 and the public bit of UE1 and UE2, but actually in transmission cycle, there is no UE pairs by UE4 in PDCCH resource area The DCI answered, therefore UE4 cannot then detect the DCI of oneself, this belongs to a kind of accidentally instruction.Accidentally instruction only makes accidentally to be indicated UE is not able to achieve a power saving, will not generate other negative effects.When UE3 detects that its 2 indicating bits are not all " 1 ", then recognize Oneself there is no downlink DCI, detection downlink DCI will not be removed, energy consumption is reduced.
In the embodiment of the present application, the position of K bit in the corresponding Bloom filter of a UE can be configured by BS, Can also according to setting formula be calculated, for example, when K be 2 when, can be with formula construction described in reference implementation example three below Formula:
IPDICH1=(AUE* (NC-RNTI+P1) * Q) mod NPDICH
IPDICH2=(AUE* (NC-RNTI+P2) * Q) mod NPDICH
Wherein, IPDICH1 and IPDICH2 indicates the corresponding two PDICH resources of UE, that is, has corresponded in Bloom filter The position of two bits.P1 and P2 is the not isobar for calculating the two of UE bit positions.In order to calculate one UE pairs The 2 different bit positions answered, also can be set AUE in formula or Q is not identical.In the embodiment of the present application, UE's is multiple Similar fashion calculating can be used in the corresponding Walsh code sequence of PDICH resource, with specific reference to specific embodiment three.
In the embodiment of the present application, Bloom filter is transmitted using multiple PDICH, each PDICH is transmitted in Bloom filter A bit, each UE corresponds to the i.e. multiple PDICH of multiple bits in Bloom filter, and UE is corresponding according to UE in Bloom filter Multiple bits determine whether blind examination downlink DCI, system resource can be saved.
Based on inventive concept same as embodiment of the method, present invention also provides a kind of user equipment schematic diagram, such as Fig. 9 It is shown, including Transmit-Receive Unit 901, base station is received in physical downlink control channel PDCCH money for being inscribed in a transmission cycle The the first instruction information sent in the setting resource of source region, wherein the first instruction information was used to indicate in the transmission week With the presence or absence of the corresponding Downlink Control Information DCI of user equipment belonging to the Transmit-Receive Unit in the PDCCH resource area in phase； Processing unit 902, for judging whether the PDCCH resource area in the transmission cycle according to the first instruction information The middle detection DCI；If the first instruction information instruction exists described in the transmission cycle in the PDCCH resource area DCI, the then Transmit-Receive Unit corresponding search space of user equipment described in the PDCCH resource area in the transmission cycle The middle detection DCI；If the first instruction information indicates that there is no described in the PDCCH resource area in the transmission cycle DCI, then the Transmit-Receive Unit detects the DCI in the PDCCH resource area not in the transmission cycle.
Based on inventive concept same as embodiment of the method, present invention also provides a kind of base station schematic diagrames, such as Figure 10 institute Show, including Transmit-Receive Unit 1001, for the setting in a transmission cycle, in physical downlink control channel PDCCH resource-area The first instruction information is sent to user equipment in resource, wherein the first instruction information is used to indicate in the transmission cycle It whether there is the corresponding Downlink Control Information DCI of the user equipment in the interior PDCCH resource area；If the first instruction letter There are the DCI in the PDCCH resource area in the transmission cycle for breath instruction, then the Transmit-Receive Unit is in the transmission week The DCI is sent to the user equipment in the search space of user equipment described in the PDCCH resource area in phase；Processing is single Member 1002, the processing unit send the first instruction information and DCI for controlling the Transmit-Receive Unit.
It is schematical, only a kind of logical function partition to the division of module in the embodiment of the present application, it is practical to realize When there may be another division manner, in addition, each functional module in each embodiment of the application can integrate at one It manages in device, is also possible to physically exist alone, can also be integrated in two or more modules in a module.It is above-mentioned integrated Module both can take the form of hardware realization, can also be realized in the form of software function module.
Wherein, when integrated module both can take the form of hardware realization, as shown in figure 11, a kind of equipment may include Processor 1102.Above-mentioned processing unit 902,1002 corresponding entities hardware can be processor 1102.Processor 1102, can It to be a central processing module (English: central processing unit, abbreviation CPU), or is digital processing module Etc..The equipment can also include communication interface 1101 (can be transceiver), and above-mentioned Transmit-Receive Unit 901,1001 is corresponding Hardware entities can be communication interface 1101.The equipment can also include: memory 1103, execute for storage processor 1102 Program.Memory 1103 can be nonvolatile memory, such as hard disk (English: hard disk drive, abbreviation: HDD) Or solid state hard disk (English: solid-state drive, abbreviation: SSD) etc., can also be volatile memory (English: Volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM).Storage Device 1103 can be used for the desired program code of carrying or storage with instruction or data structure form and can be by calculating Any other medium of machine access, but not limited to this.
Processor 1102 is used to execute the program code of the storage of memory 1103, is specifically used for executing embodiment illustrated in fig. 2 The method.It may refer to method described in embodiment illustrated in fig. 2, details are not described herein by the application.
The tool between above-mentioned communication interface 1101, processor 1102 and memory 1103 is not limited in the embodiment of the present application Body connects medium.The embodiment of the present application in Figure 11 between memory 1103, processor 1102 and communication interface 1101 lead to The connection of bus 1104 is crossed, bus indicates that the connection type between other components is only schematically to be said in Figure 11 with thick line It is bright, do not regard it as and is limited.The bus can be divided into address bus, data/address bus, control bus etc..For convenient for indicating, in Fig. 7 It is only indicated with a thick line, it is not intended that an only bus or a type of bus.
The embodiment of the invention also provides a kind of computer readable storage mediums, execute above-mentioned processor institute for being stored as The computer software instructions that need to be executed, it includes the programs for execution needed for executing above-mentioned processor.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.
It should also be understood that the differentiation that first, second and various digital numbers that are referred to herein only carry out for convenience of description, It is not intended to limit scope of the present application.
In the application, "and/or" describes the incidence relation of affiliated partner, indicates may exist three kinds of relationships, for example, A And/or B, the case where can indicate: individualism A exists simultaneously A and B, individualism B, wherein A, B can be odd number or Plural number.Character "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or".
In the application, "at least one" refers to one or more, and " multiple " refer to two or more." with down toward One item missing (a) " or its similar expression, refer to these in any combination, appointing including individual event (a) or complex item (a) Meaning combination.For example, " at least one (a) in a, b or c ", or, " at least one (a) in a, b and c ", it can be with table Show: a, b, c, a-b (i.e. a and b), a-c, b-c or a-b-c, wherein a, b, c can be individually respectively, be also possible to multiple.
It should be understood that magnitude of the sequence numbers of the above procedures are not meant to execute suitable in the various embodiments of the application Sequence it is successive, part or all of step can be executed parallel or successively be executed, the execution sequence Ying Yiqi function of each process and interior It is determined in logic, the implementation process without coping with the embodiment of the present application constitutes any restriction.
The application be referring to according to the present processes, equipment (system) and computer program product flow chart and/or Block diagram describes.It should be understood that each process that can be realized by computer program instructions in flowchart and/or the block diagram and/or The combination of process and/or box in box and flowchart and/or the block diagram.It can provide these computer program instructions to arrive General purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices processor to generate one Machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for realizing flowing The device for the function of being specified in journey figure one process or multiple processes and/or block diagrams one box or multiple boxes.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies Within, then the application is also intended to include these modifications and variations.

Claims (13)

1. a kind of method for transmitting Downlink Control Information, which is characterized in that the described method includes:
User equipment is inscribed in a transmission cycle and receives base station in the setting resource of physical downlink control channel PDCCH resource-area First instruction information of middle transmission, wherein the first instruction information is used to indicate the PDCCH money in the transmission cycle It whether there is the corresponding Downlink Control Information DCI of the user equipment in source region；
The user equipment according to the first instruction information judge in the transmission cycle in the PDCCH resource area whether There are the DCI；
If there are the DCI in the PDCCH resource area in the transmission cycle for the first instruction information instruction, described User equipment is in the transmission cycle in the corresponding search space of user equipment described in the PDCCH resource area described in detection DCI；
If the first instruction information indicates that the DCI is not present in the transmission cycle in the PDCCH resource area, described User equipment detects the DCI in the PDCCH resource area not in the transmission cycle.
2. the method as described in claim 1, which is characterized in that the user equipment is inscribed in a transmission cycle and receives base station The the first instruction information sent in the setting resource of physical downlink control channel PDCCH resource-area, comprising:
The user equipment is inscribed in the transmission cycle and receives what base station was sent in the setting resource in the PDCCH resource area First DCI, wherein the first DCI includes an indicating bit table, the group of user equipments being used to indicate where the user equipment In each user equipment in the transmission cycle in the PDCCH resource area whether there is corresponding DCI, the indicating bit table In at least one bit be used to indicate in the transmission cycle in the PDCCH resource area with the presence or absence of the user equipment DCI；
The user equipment according to the first instruction information judge in the transmission cycle in the PDCCH resource area whether There are the DCI to include:
The user equipment is in the transmission cycle according in the indicating bit table corresponding with the user equipment at least one A bit judges to whether there is the DCI in the PDCCH resource area in the transmission cycle.
3. method according to claim 1 or 2, which is characterized in that the setting resource includes public search space or institute Group of user equipments pair where corresponding group of public search space of group of user equipments where stating user equipment or the user equipment The constant transmissions resource answered.
4. method according to claim 2, which is characterized in that the user equipment is in the transmission cycle according to the finger Show at least one bit corresponding with the user equipment in a table, judges the PDCCH resource area in the transmission cycle In whether there is the DCI, specifically include:
If the value of at least one bit is all the first setting value, the user equipment determines the institute in the transmission cycle State in PDCCH resource area that there are the DCI；
If the value of at least one bit is the second setting value at least one described bit, the user equipment is determined described The DCI is not present in transmission cycle in the PDCCH resource area.
5. the method as described in any in claim 2-4, which is characterized in that the user equipment is inscribed in the transmission cycle Before receiving the first instruction information that base station is sent in the setting resource in the PDCCH resource area, this method further include:
The user equipment receives the first configuration information that the base station is sent, and includes the use in first configuration information The corresponding public wireless network temporary identifier G-RNTI of family equipment group and the user equipment are in the group of user equipments Mark in group, wherein the G-RNTI is user where the user equipment for the DCI that user equipment identification receives Corresponding first DCI of equipment group, described group of interior mark are used for the user equipment in the indicating bit of the group of user equipments It is determined and the corresponding bit of the user equipment itself in table.
6. the method as described in claim 2-4 is any, which is characterized in that the user equipment receives in the transmission cycle Before the first instruction information sent in the setting resource in the PDCCH resource area to base station, this method further include:
The user equipment receives the second configuration information that the base station is sent, and includes indicator in second configuration information The group mark of group of user equipments where radio network temporary identifier I-RNTI, the user equipment and the user equipment are described Mark in group in group of user equipments, wherein the I-RNTI is described for the DCI that user equipment identification receives Whether one DCI, described group of mark are corresponding first DCI of the group of user equipments, institute for determining received DCI Mark in group is stated to determine and the corresponding bit of the user equipment itself in the first DCI for the user equipment.
7. the method as described in claim 1, which is characterized in that the user equipment is inscribed in a transmission cycle and receives base station The the first instruction information sent in the setting resource of physical downlink control channel PDCCH resource-area, comprising:
The user equipment receives base station in the setting resource in PDCCH resource area and sends at least the transmission cycle is inscribed 1 bit information, wherein at least 1 bit information be used to indicate in the transmission cycle in the PDCCH resource area whether There are the Downlink Control Information DCI of the user equipment, each bit information for including at least 1 bit information is independently passed It is defeated；
The user equipment according to the first instruction information judge in the transmission cycle in the PDCCH resource area whether There are the DCI, comprising:
The user equipment determines itself at least one corresponding bit information at least one described bit information, according to Whether at least one corresponding bit decision of the user equipment itself deposits in the PDCCH resource area in the transmission cycle In the DCI.
8. the method for claim 7, which is characterized in that the user equipment is inscribed in the transmission cycle and receives base station Before at least 1 bit information sent in the setting resource in PDCCH resource area, this method further include:
The user equipment receives the third configuration information that the base station is sent, and includes at least one in the third configuration information The corresponding relationship of a resource location and the user equipment, wherein each resource location is used for transmission at least 1 bit 1 bit information in information.
9. a kind of method for transmitting Downlink Control Information, which is characterized in that the described method includes:
Base station is in a transmission cycle, to user equipment in the setting resource of physical downlink control channel PDCCH resource-area Send the first instruction information, wherein the first instruction information is used to indicate the PDCCH resource area in the transmission cycle In whether there is the corresponding Downlink Control Information DCI of the user equipment；
If there are the DCI in the PDCCH resource area in the transmission cycle for the first instruction information instruction, described It is sent out in the search space of user equipment described in the PDCCH resource area to the user equipment in the transmission cycle base station Send the DCI.
10. a kind of user equipment, which is characterized in that the user equipment includes:
Transmit-Receive Unit receives base station setting in physical downlink control channel PDCCH resource-area for being inscribed in a transmission cycle Determine the send in resource first instruction information, wherein the first instruction information is used to indicate in the transmission cycle described With the presence or absence of the corresponding Downlink Control Information DCI of user equipment belonging to the Transmit-Receive Unit in PDCCH resource area；
Processing unit, for indicating that information judges to be in the PDCCH resource area in the transmission cycle according to described first It is no that there are the DCI；
If there are the DCI in the PDCCH resource area in the transmission cycle for the first instruction information instruction, described Transmit-Receive Unit is in the transmission cycle in the corresponding search space of user equipment described in the PDCCH resource area described in detection DCI；
If the first instruction information indicates that the DCI is not present in the transmission cycle in the PDCCH resource area, described Transmit-Receive Unit detects the DCI in the PDCCH resource area not in the transmission cycle.
11. a kind of base station, which is characterized in that the base station includes:
Transmit-Receive Unit, in a transmission cycle, in the setting resource of physical downlink control channel PDCCH resource-area to User equipment sends the first instruction information, wherein the first instruction information is used to indicate in the transmission cycle described It whether there is the corresponding Downlink Control Information DCI of the user equipment in PDCCH resource area；
If there are the DCI in the PDCCH resource area in the transmission cycle for the first instruction information instruction, described Transmit-Receive Unit is also used to, to institute in the search space of user equipment described in the PDCCH resource area in the transmission cycle It states user equipment and sends the DCI.
12. a kind of equipment, which is characterized in that including processor, memory and transceiver,
The memory, is stored with software program；
The processor receives and dispatches number by the transceiver for calling and executing the software program stored in the memory According to realizing method as claimed in any one of claims 1-9 wherein.
13. a kind of system, including base station and user equipment characterized by comprising
The base station, in a transmission cycle, in the setting resource of physical downlink control channel PDCCH resource-area to The user equipment sends the first instruction information, and user equipment is in the inscribed base station that receives of a transmission cycle in physical down control The the first instruction information sent in the setting resource in channel PDCCH resource area, wherein the first instruction information is used to indicate It whether there is the corresponding Downlink Control Information DCI of the user equipment in the transmission cycle in the PDCCH resource area；It is described User equipment judges to whether there is in the PDCCH resource area in the transmission cycle described according to the first instruction information DCI；
If there are the DCI in the PDCCH resource area in the transmission cycle for the first instruction information instruction, described It is sent out in the search space of user equipment described in the PDCCH resource area to the user equipment in the transmission cycle base station Send the DCI, the user equipment corresponding search of user equipment described in the PDCCH resource area in the transmission cycle The DCI is detected in space；
If the first instruction information indicates that the DCI is not present in the transmission cycle in the PDCCH resource area, described User equipment detects the DCI in the PDCCH resource area not in the transmission cycle.
CN201810136994.8A 2017-10-27 2018-02-09 Method, equipment and system for transmitting downlink control information Active CN109729573B (en)

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CN202111154639.1A CN114040476B (en) 2017-10-27 2018-02-09 Method, equipment and system for transmitting downlink control information
CN202111149915.5A CN114040475A (en) 2017-10-27 2018-02-09 Method, equipment and system for transmitting downlink control information
PCT/CN2018/111454 WO2019080839A1 (en) 2017-10-27 2018-10-23 Downlink control information transmission method and apparatus

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WO2021035611A1 (en) * 2019-08-29 2021-03-04 华为技术有限公司 Resource request method and communication device
WO2021184936A1 (en) * 2020-03-19 2021-09-23 华为技术有限公司 Communication method and apparatus

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Publication number Priority date Publication date Assignee Title
WO2021035611A1 (en) * 2019-08-29 2021-03-04 华为技术有限公司 Resource request method and communication device
WO2021184936A1 (en) * 2020-03-19 2021-09-23 华为技术有限公司 Communication method and apparatus

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