CN109842869A - The received method and apparatus of scheduling information - Google Patents

The received method and apparatus of scheduling information Download PDF

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Publication number
CN109842869A
CN109842869A CN201810040728.5A CN201810040728A CN109842869A CN 109842869 A CN109842869 A CN 109842869A CN 201810040728 A CN201810040728 A CN 201810040728A CN 109842869 A CN109842869 A CN 109842869A
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China
Prior art keywords
dci
pusch
scheduling information
resource
transmission
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CN201810040728.5A
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Chinese (zh)
Inventor
周淼
孙霏菲
钱辰
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Beijing Samsung Telecom R&D Center
Beijing Samsung Telecommunications Technology Research Co Ltd
Samsung Electronics Co Ltd
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Beijing Samsung Telecommunications Technology Research Co Ltd
Samsung Electronics Co Ltd
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Application filed by Beijing Samsung Telecommunications Technology Research Co Ltd, Samsung Electronics Co Ltd filed Critical Beijing Samsung Telecommunications Technology Research Co Ltd
Priority to EP18841342.1A priority Critical patent/EP3646656A4/en
Priority to KR1020207006134A priority patent/KR20200027048A/en
Priority to PCT/KR2018/008766 priority patent/WO2019027262A1/en
Priority to US16/635,983 priority patent/US11317431B2/en
Publication of CN109842869A publication Critical patent/CN109842869A/en
Priority to US17/660,367 priority patent/US11963192B2/en
Pending legal-status Critical Current

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Abstract

The invention discloses a kind of scheduling information method of reseptances comprising: obtain Downlink Control Information DCI;According to the mapping relations of scheduling information in transmission configuration resource used in Physical Uplink Shared Channel PUSCH and DCI, the scheduling information for corresponding to the PUSCH is determined in the DCI.Compared with prior art, the present invention determines the scheduling information in DCI by the way that UE to be transmitted to the mapping relations of scheduling information in transmission configuration resource used in PUSCH and DCI, base station is allowed only to send a DCI, realize that there are the scheduling of all UE of mapping relations for scheduling information in PUSCH transmission configuration resource and DCI, reduce scheduling overhead, it reduces resource waste, has been obviously improved the efficiency that communication system is scheduled terminal.

Description

The received method and apparatus of scheduling information
Technical field
The present invention relates to wireless communication technology fields, more particularly, to a kind of received method and apparatus of scheduling information.
Background technique
In current MTC (Machine Type Communication, Machinery model communication) technology, system is supported to use DCI (Downlink Control Information, Downlink Control Information) be UE (User Equitment, user equipment) into Row ETS (Early Termination Signal, in advance abort signal) scheduling, i.e. base station pass through PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) on DCI to UE (User Equitment, Yong Hushe It is standby) (Physical Uplink Shared Channel, physical uplink are total to dispatch PUSCH used in UE for transmission ETS signal Enjoy channel) running time-frequency resource.According to ascending HARQ-ACK (Hybrid Automatic Retransmission Request Acknowledgement, hybrid automatic repeat-request response) transmitting for realizing ETS signal is fed back, a DCI can only be indicated The ACK information of one UE/HARQ process, i.e. MTC technology, which are only supported in a DCI, carries out ETS scheduling, scheduling letter for a UE Enable length identical as DCI format (DCI format) 6-0A/B, this mode information overhead is excessive, as the UE that needs are fed back It will cause the biggish wasting of resources when quantity is more.
LTE (Long Term Evolution, long term evolution) technical support is that multiple UE carry out power in a DCI Control scheduling, the DCI transmitting scheduling information of DCI format3/3A format is used when realization.But existing DCI format3/3A In the DCI of format, the mapping relations in UE and TPC command (power control command) domain are configured by high-level signaling, are lacked flexible Property, can not meet the needs of UE for each uplink or down control channel monitoring can neatly carry out ACK feedback ground Application scenarios.Therefore this mode can not be also multiplexed in MTC system.
In view of this, it is necessary to provide a kind of scheduling information method of reseptance for being able to solve above-mentioned technical problem and equipment.
Summary of the invention
It is an object of the invention to: it overcomes the deficiencies of the prior art and provide one kind and is able to use the multiple UE of DCI scheduling Scheduling information method of reseptance and equipment.
To achieve the goals above, the present invention provides a kind of scheduling information method of reseptances comprising following steps:
Obtain Downlink Control Information DCI;
It is reflected according to transmission configuration resource used in Physical Uplink Shared Channel PUSCH and scheduling information in the DCI Relationship is penetrated, the scheduling information for corresponding to the PUSCH is determined in the DCI.
Preferably, the acquisition DCI, comprising: obtain the DCI comprising one or more UE scheduling information.
Preferably, the acquisition DCI, comprising: obtain DCI with the radio network temporary identifier RNTI that base station is distributed.
Preferably, the acquisition DCI, comprising: the radio network temporary identifier RNTI distributed with base station is to candidate downlink control Channel PDCCH processed carries out cyclic redundancy check CRC descrambling, and PDCCH is successfully decoded, and obtains DCI.
Preferably, the acquisition DCI, comprising: obtain the higher DCI of priority according to priority orders, the priority is suitable Sequence is used to determine the priority of two class DCI, and the two classes DCI includes the scheduling information carried in a DCI message to a UE DCI and DCI message in carry multiple UE scheduling information DCI.
Preferably, the transmission configuration resource includes in running time-frequency resource, code source and demodulated reference signal DMRS resource At least one.
Preferably, letter is dispatched in the transmission configuration resource according to used in Physical Uplink Shared Channel PUSCH and DCI The mapping relations of breath determine the scheduling information for corresponding to the PUSCH in the DCI, comprising:
Relative position of the running time-frequency resource position according to used in PUSCH in the first running time-frequency resource region, in the DCI Middle determination corresponds to the scheduling information of the PUSCH.
Preferably, running time-frequency resource position or acquired DCI of first running time-frequency resource region by acquired DCI Content or base station configuration and/or protocol conventions determine.
Preferably, opposite position of the running time-frequency resource position according to used in PUSCH in the first running time-frequency resource region It sets, the scheduling information for corresponding to the PUSCH is determined in the DCI, comprising:
It is several minimum scheduling units by the running time-frequency resource region division;
It determines to dispatch in the corresponding minimum scheduling unit in running time-frequency resource position and the DCI used in transmission PUSCH and believe The mapping relations of breath;
The scheduling information for corresponding to the PUSCH is determined in the DCI according to the mapping relations.
Preferably, the corresponding minimum scheduling unit in running time-frequency resource position used in the determining transmission PUSCH with it is described The mapping relations of scheduling information in DCI, comprising: number in order, determined used in transmission PUSCH to each minimum scheduling unit The mapping relations of the number and scheduling information in the DCI of the corresponding minimum scheduling unit in running time-frequency resource position.
Preferably, described to determine the scheduling information for corresponding to the PUSCH, packet in the DCI according to the mapping relations It includes: determining the dispatching zone in DCI according to the mapping relations, obtain the scheduling information in the dispatching zone.
Preferably, the scheduling information includes at least one of following information: the ACK letter of instruction PUSCH decoding situation Breath, the nack message of instruction PUSCH decoding situation, the instruction information for terminating monitoring down physical channel PDCCH.
Preferably, letter is dispatched in the transmission configuration resource according to used in Physical Uplink Shared Channel PUSCH and DCI The mapping relations of breath determine in the DCI and correspond to after the scheduling information of the PUSCH, further includes: if identified scheduling Information is ACK, executes at least one in following operation:
Stop ongoing PUSCH transmission corresponding with the ACK information;
Empty uplink authorization UL grant corresponding with the PUSCH;
Discharge the remainder of the transfer resource of the PUSCH;
Empty the caching of hybrid automatic repeat-request HARQ process corresponding with the PUSCH;
Stop to monitor physical downlink control channel PDCCH.
Preferably, letter is dispatched in the transmission configuration resource according to used in Physical Uplink Shared Channel PUSCH and DCI The mapping relations of breath determine in the DCI and correspond to after the scheduling information of the PUSCH, comprising: if identified scheduling is believed At least one of breath is ACK, and predefined time window is interior or on predefined time point, in the following operation of execution:
Stop ongoing PUSCH transmission corresponding with the ACK information;
Empty uplink authorization UL grant corresponding with the PUSCH;
Discharge the remainder of the transfer resource of the PUSCH;
Empty the caching of hybrid automatic repeat-request HARQ process corresponding with the PUSCH;
Stop to monitor physical downlink control channel PDCCH.
To achieve the goals above, the present invention also provides a kind of user equipmenies comprising:
Downlink Control Information module is obtained, for obtaining Downlink Control Information DCI;
Determine scheduling information module, for the transmission configuration resource according to used in Physical Uplink Shared Channel PUSCH with The mapping relations of scheduling information in DCI determine the scheduling information for corresponding to the PUSCH in the DCI.
To achieve the goals above, the present invention also provides a kind of scheduling information transmitting methods comprising following steps:
The Physical Uplink Shared Channel of several UE is received and attempted to decode on the first uplink time/frequency source region PUSCH;
According to the decoded state of the PUSCH of several UE, the scheduling letter of the PUSCH corresponding to several UE is generated Breath;
The Downlink Control Information DCI of the scheduling information of the PUSCH comprising several UE, institute are generated according to mapping relations Mapping relations are stated for transmission configuration resource used in the PUSCH of several UE to be respectively mapped in DCI accordingly Dispatching zone;
Send the DCI.
Compared with prior art, technical effect of the invention includes but is not limited to: being transmitted by UE and is passed used in PUSCH Transmission & distribution set the mapping relations of scheduling information in resource and DCI to determine the scheduling information in DCI, and base station is allowed only to send one DCI, realizing reduces scheduling information in PUSCH transmission configuration resource and DCI there are the scheduling of all UE of mapping relations Scheduling overhead reduces resource waste, and has been obviously improved the efficiency that communication system is scheduled terminal.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for Those skilled in the art are also possible to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is the flow chart of scheduling information method of reseptance of the present invention;
Fig. 2 is the schematic diagram of three scheduling information receive process running time-frequency resource of the embodiment of the present invention;
Fig. 3 is the schematic diagram of four DCI message and scheduled the first corresponding relationship of running time-frequency resource of the embodiment of the present invention;
Fig. 4 is the schematic diagram of four DCI message and second of corresponding relationship of scheduled running time-frequency resource of the embodiment of the present invention;
Fig. 5 be five running time-frequency resource region minimum scheduling unit of the embodiment of the present invention with UE/HARQ process the first it is corresponding pass The schematic diagram of system;
Fig. 6, which is that five running time-frequency resource region minimum scheduling unit of the embodiment of the present invention is corresponding with second of UE/HARQ process, to close The schematic diagram of system;
Fig. 7 be five running time-frequency resource region minimum scheduling unit of the embodiment of the present invention with UE/HARQ process the third it is corresponding pass The schematic diagram of system;
Fig. 8, which is that five running time-frequency resource region minimum scheduling unit of the embodiment of the present invention is corresponding with the 4th kind of UE/HARQ process, to close The schematic diagram of system;
Fig. 9 is the schematic diagram that six DCI of the embodiment of the present invention dispatches ETS signal using HARQ-ACK;
Figure 10 is the first the exemplary schematic diagram for the configuration that the embodiment of the present invention seven newly defines search space;
Figure 11 is second of exemplary schematic diagram of the configuration that the embodiment of the present invention seven newly defines search space;
Figure 12 is the third the exemplary schematic diagram for the configuration that the embodiment of the present invention seven newly defines search space;
Figure 13 is the 4th kind of exemplary schematic diagram of the configuration that the embodiment of the present invention seven newly defines search space;
Figure 14 is the 5th kind of exemplary schematic diagram of the configuration that the embodiment of the present invention seven newly defines search space;
Figure 15 is the 6th kind of exemplary schematic diagram of the configuration that the embodiment of the present invention seven newly defines search space;
Figure 16 is applied to grant-free for seven scheduling information method of reseptance of the embodiment of the present invention and (exempts to authorize) communication scenes Schematic diagram;
Figure 17 is that eight scheduling information method of reseptance of the embodiment of the present invention is applied to semi-persistent scheduling (semi- Persistently scheduling, SPS) scene schematic diagram;
Figure 18 is module frame chart of the present invention for the user equipment of scheduling information method of reseptance.
Specific embodiment
The embodiment of the embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein certainly Begin to indicate same or similar element or element with the same or similar functions to same or similar label eventually.Below by The embodiment being described with reference to the drawings is exemplary, for explaining only the invention embodiment, and cannot be construed to of the invention real Apply the limitation of example.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one It is a ", " described " and "the" may also comprise plural form.It is to be further understood that making in the specification of the embodiment of the present invention Wording " comprising " refers to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of Or add other one or more features, integer, step, operation, element, component and/or their group.It should be understood that working as me Claim element to be " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or can also With there are intermediary elements.In addition, " connection " used herein or " coupling " may include being wirelessly connected or wirelessly coupling.Here make Wording "and/or" includes one or more associated wholes for listing item or any cell and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art Language and scientific term), there is meaning identical with the general understanding of those of ordinary skill in fields of the embodiment of the present invention. It should also be understood that those terms such as defined in the general dictionary, it should be understood that have upper and lower with the prior art The consistent meaning of meaning in text, and unless idealization or too formal otherwise will not be used by specific definitions as here Meaning explain.
Those skilled in the art of the present technique are appreciated that " terminal " used herein above, " terminal device " both include wireless communication The equipment of number receiver, only has the equipment of the wireless signal receiver of non-emissive ability, and including receiving and emitting hardware Equipment, have on bidirectional communication link, can carry out two-way communication reception and emit hardware equipment.This equipment It may include: honeycomb or other communication equipments, shown with single line display or multi-line display or without multi-line The honeycomb of device or other communication equipments;PCS (PerSonal CommunicationS Service, PCS Personal Communications System), can With combine voice, data processing, fax and/or communication ability;PDA (PerSonal Digital ASSiStant, it is personal Digital assistants), it may include radio frequency receiver, pager, the Internet/intranet access, web browser, notepad, day It goes through and/or GPS (Global PoSitioning SyStem, global positioning system) receiver;Conventional laptop and/or palm Type computer or other equipment, have and/or the conventional laptop including radio frequency receiver and/or palmtop computer or its His equipment." terminal " used herein above, " terminal device " can be it is portable, can transport, be mounted on the vehicles (aviation, Sea-freight and/or land) in, or be suitable for and/or be configured in local runtime, and/or with distribution form, operate in the earth And/or any other position operation in space." terminal " used herein above, " terminal device " can also be communication terminal, on Network termination, music/video playback terminal, such as can be PDA, MID (Mobile Internet Device, mobile Internet Equipment) and/or mobile phone with music/video playing function, it is also possible to the equipment such as smart television, set-top box.
The embodiment of the invention provides a kind of method of transmitting scheduling information so that DCI information can for multiple UE into Row scheduling, and the scheduling mechanism can correspond to the real-time Transmission situation on any given time point, have lower overhead With good flexibility.In addition, (exempting to authorize) under the typical scenes such as uplink for grant-free, multiple UE are matched in base station An identical resource pool is set, when UE selects transfer resource in a manner of there is competition, which can provide for such scene A kind of effectively reliable scheduling mode.
Referring to Fig. 1, the scheduling information method of reseptance of the embodiment of the present invention the following steps are included:
Step 101, Downlink Control Information DCI is obtained;
Step 102, it is dispatched in the transmission configuration resource according to used in Physical Uplink Shared Channel PUSCH and the DCI The mapping relations of information determine the scheduling information for corresponding to the PUSCH in the DCI.
The scheduling information transmitting method of the embodiment of the present invention the following steps are included:
Step 201, it is received on the first uplink time/frequency source region and the physical uplink for attempting to decode several UE is shared Channel PUSCH;
Step 202, according to the decoded state of the PUSCH of several UE, generate the PUSCH's corresponding to several UE Scheduling information;
Step 203, the downlink that the scheduling information of the PUSCH comprising several UE is generated according to mapping relations controls letter DCI is ceased, the mapping relations are used to transmission configuration resource used in the PUSCH of several UE being respectively mapped to DCI In corresponding dispatching zone;
Step 204, the DCI is sent.
Scheduling information method of reseptance disclosed by the embodiments of the present invention, specifically includes:
One, UE carries out transmitting uplink data in PUSCH channel, and base station receives the PUSCH transmission of UE and in a manner of DCI pair UE is scheduled.Specifically, base station makes according to the reception state of the PUSCH transmission to UE (receive successfully/not yet receive successfully) The HARQ-ACK feedback of UE UL (uplink) PUSCH transmission is carried out with DCI.
UE determines subsequent behavior after receiving the DCI of base station, according to DCI content.For example, UE receives the DCI of base station and obtains ACK feedback message is taken, then execute at least one of the following operation: UE stops ongoing corresponding with the ACK information PUSCH transmission;Empty the corresponding uplink grant of configuration;Discharge the remainder of the PUSCH transmission resource obtained from base station scheduling Point;Empty the caching of HARQ process;Stop monitor physical downlink control channel PDCCH (PDCCH can be MPDCCH, EPDCCH, NPDCCH etc.).
Two, when base station is scheduled UE using DCI, support that the scheduling to a UE is carried in a DCI message to be believed It ceases (in this book of telling somebody what one's real intentions are for ease of description, referred to as single DCI (single DCI)), supports to carry in a DCI message to more The scheduling information (in this book of telling somebody what one's real intentions are for ease of description, referred to as group DCI (group DCI)) of a UE, support single DCI and Group DCI is used in conjunction with.
(1) when single/group DCI is used in conjunction with, there are certain priority relationships between two class DCI, when UE is same When have received two class DCI message and two class message instruction uplink scheduling information difference when, UE is always preferentially with wherein certain class DCI Result subject to or UE according to quantity (single DCI/group DCI) or DCI format based on DCI scheduler object (DCI format) or carrying content (such as sending A/N feedback (ACK/NACK feedback), for sending UL grant, (uplink is awarded Power) scheduling etc.) determine DCI priority.The priority relationship can be pre-configuration or high-rise configuration.
1, extraly, consider two kinds of possible priority relationships: data transmission scheduling message is higher than other single DCI Higher than other group DCI;Or, data transmission scheduling message is higher than the single DCI for carrying NACK higher than carrying ACK's Group DCI is higher than the single DCI for carrying ACK higher than the group DCI for carrying NACK.Specifically, if UE is in group ACK information is received in DCI, but be scheduled re-transmission in single DCI and (e.g., referred to by NDI (New Data Indicator) It is shown as retransmitting), then UE is retransmitted according to the scheduling information of Single DCI.When base station needs to utilize the current uplink of the UE The resource of occupancy, when the UE being needed to discharge the ascending resource, base station can indicate ACK information by Group DCI, then UE can be eventually Only current uplink, but UE will not empty the caching (Buffer) of HARQ, this may not be successfully decoded for base station at this time Uplink.When continuing uplink when then there is ascending resource that can dispatch the UE, base station can pass through single DCI weight New triggering retransmits HARQ caching.
(2) when some give UE meet preset condition (such as after the UL end of transmission start a timer, timing Device is expired not to receive ACK/NACK message yet) after when not obtaining any of the above one kind DCI yet, UE uses preset processing result (such as being considered ACK, or be considered NACK).For example it is assumed that for ACK, (UE sends ACK message to upper layer, and empties HARQ buffer), or be assumed to NACK and retransmitted according to rule predetermined, for example, can be after 4 milliseconds, phase Same frequency domain resource position is retransmitted.
Three, for the single DCI in two, specifically, when HARQ-ACK is transmitted using single DCI in base station, as When the ETS signal of UE, it is multiplexed existing DCI format, such as the format 6-0A/B in eMTC.Carry row of the ETS signal for suspension It is monitored for type, including suspension PUSCH transmission, or suspension PDCCH, or stops both of the above.
(1) instruction carries ETS signal at least one of in the following way:
1, using the value being still not used by present in the certain field in existing DCI format;
2, the definition of part field in existing DCI format is changed;
3, other fields in existing DCI format are all set to predetermined value, such as complete " 1 " or complete " 0 ".
It (two), can be by following one or more when base station needs to stop the PUSCH transmission of UE with single DCI Scheme is realized:
1, by using some specific field value, stop specific one HARQ (hybrid automatic repeat-request) into Journey;
2, all HARQ processes are stopped by using some specific field value;
3, in a manner of bitmap (bitmap), stop one or more of multiple HARQ processes.For example, can be by more The method for changing part field in DCI format is realized.
(3) in single DCI, stop the PUSCH transmission of UE by using some specific field value, and/or, It is monitored by using the PDCCH that some specific field value stops UE, and/or, by using some specific field value The PUSCH transmission and PDCCH for stopping UE are monitored.
Four, for the group DCI in two, base station according to one group of specific UL running time-frequency resource Area generation group DCI, The group DCI is for dispatching all or part of UE transmitted in the time-frequency region.
(1) base station is that UE configures one or more group-RNTI (group-radio network temporary identifier) by high-level signaling, UE is decoded given group DCI using the group-RNTI (s) of oneself, if can successfully solve, then it is assumed that in the DCI In the presence of the Scheduling content to the UE.
(2) Group-RNTI can transmission configuration resource presence association corresponding with group DCI.For example, presetting several A transmission configuration resource, the mapping relations between several presetting group-RNTI and several transmission configuration resources;UE according to For the group-RNTI of group DCI to be successfully decoded, the corresponding transmission configuration resource of group DCI is obtained.
It five, can be by one of following manner or a variety of determinations for the specific UL running time-frequency resource region in four:
(1) it according to the mapping relations of predefined or high-rise configuration, is determined based on the transmission running time-frequency resource of group DCI; For example, UE is in subframe (subframe can be time slot or the minimum scheduling time unit of a resource unit (Resource unit)) n Group DCI and successfully decoded are received, according to the mapping relations of high level configuration, determines the corresponding specific UL time-frequency of group DCI Resource area is located at subframe n-4.
(2) it is carried in group DCI in direct or indirect mode;For example, being said in group DCI with message field Physical Resource Block (the Physical of the starting frequency domain position in the corresponding specific UL running time-frequency resource region bright group DCI Resource Block, PRB) serial number.
(3) it is configured by base station and/or is made an appointment by agreement;For example, several presetting transmission configuration resources, and It numbers in order, extraly, the serial number or UE that corresponding specific UL running time-frequency resource region is carried in group DCI are according to matching The RNTI set selects the serial number in corresponding specific UL running time-frequency resource region.
Six, it to distinguish all or part of UE that group DCI is scheduled in four, establishes every in UE and group DCI Mapping relations between item Scheduling content.
(1) using following either method or any combination thereof, the transmission configuration resource of UE, i.e. transmission configuration resource are defined May include running time-frequency resource, code word, any one in pilot signal or any a variety of combination:
1, it is based on running time-frequency resource: the specific UL running time-frequency resource in four being divided into several minimum scheduling units, and by money Source position sequence is numbered, then the corresponding minimum scheduling unit in running time-frequency resource position that UE carries out PUSCH transmission is that transmission is matched Set resource.
There can be multiple UE to be transmitted on (1) minimum scheduling unit and (distinguish these again by combining other methods UE);One UE can be transmitted on multiple minimum scheduling units, then by the volume of first of initial position minimum scheduling unit Number it is determined as transmission configuration resource.
(2) for minimum scheduling unit division methods, using predefined division methods, or according to part it is predefined/ High level configuration /DCI in the parameter that carries minimum scheduling unit division methods are calculated.For example, predefined minimum scheduling is single The running time-frequency resource of member is having a size of 1 subframe of time domain, 1 PRB of frequency domain.For example, high-rise configure on one section of continuous frequency domain, The frequency domain dimension of minimum scheduling unit is 3 subcarriers, and the time domain of predefined minimum scheduling unit is having a size of 1 subframe.
2, it is based on code word: if difference UE is transmitted on identical running time-frequency resource using different code words, and the code word number supported It measures limited, then code word is sequentially numbered, the codeword number that UE is used is transmission configuration resource.Specifically, different code word Can for different spreading codes, different scrambling codes, different interlaced codes, different resource particles (resource element, RE) mapping pattern etc..
3, it is based on pilot signal: according to demodulated reference signal predetermined (Demodulation Reference Signal, DMRS) sequence (such as different sequences and/or the different positions DMRS etc.) determine transmission configuration resource.UE is used Pilot signal as transmission configuration resource.
It 4, can be by configuring different group- to different UE when extraly, system is supported to configure multiple group-RNTI RNTI is as the approach for distinguishing UE.
(2) content of parameter relevant to UE transmission configuration resource is directly or indirectly carried in group DCI, or predetermined Mapping relations between the adopted domain DCI and UE transmission configuration resource related parameters, comprising:
1, it is based on the mapping mode of bitmap (Bitmap)
According to whole transfer resources configuration in the first running time-frequency resource region, sets up in group DCI and transmitted with every kind Several dispatching zones that resource distribution is corresponding in turn to.Specifically, the combination including any one or more in following manner:
(1) set up that there are the several of mapping relations with all minimum scheduling units for dividing in (one) in group DCI A dispatching zone carries the Scheduling content of the UE transmitted on corresponding minimum scheduling unit in each dispatching zone;
(2) if difference UE carries out PUSCH transmission using different code words, each code word is corresponded in a group DCI Dispatching zone carries the Scheduling content with the UE of corresponding codewords mapping;
(3) if difference UE using different pilot signal (such as the DMRS of different sequences, different running time-frequency resource positions DMRS etc.) PUSCH transmission is carried out, the dispatching zone in the corresponding group DCI of every kind of pilot signal carries and believes with corresponding pilot tone Number mapping UE Scheduling content;
(4) specifically, when Scheduling content is that UL A/N is fed back, all transmission in (one) are carried in the form of bitmap and are matched Set the A/N feedback result of resource (such as each code word on each minimum scheduling unit use each pilot signal).
2, based on the mapping mode of RNTI
(1) when system is supported to configure multiple group-RNTI, it is allocated to the group-RNTI of UE and for scrambled to DCI Group-RNTI can be used for determining whether DCI dispatching zone is associated with UE identity;
(2) and/or, when system is that UE configures group-RNTI, also configure UE serial number in this set, the serial number with There are mapping relations, UE selects to use in group DCI according to the serial number of configuration one or more dispatching zones in group DCI In the dispatching zone for obtaining scheduling information.
3, the mapping of dispatching zone and UE transmission configuration resource
(1) set up that there are several dispatching zones of mapping relations with the part UE that dispatches is needed in group DCI, every The transfer resource configuration of the Scheduling content and UE of corresponding UE is carried in a dispatching zone.
(2) there are mapping relations for the fractional transmission of the dispatching zone in Group DCI and UE configuration resource, in each dispatching zone The middle remainder transmission configuration resource for carrying Scheduling content and not there are no mapping relations.For example, for every in group DCI A minimum scheduling unit sets up several dispatching zones, and Scheduling content is carried in each dispatching zone and the part UE dispatched is needed to make Code word and pilot signal.
Seven, base station can only send one of ACK NACK state.For example, when base station carries out ACK/NACK feedback When, if base station only ACK is scheduled, UE such as during PUSCH transmission base station configure search space in non-As-received Stand send ACK message, then it is assumed that the PUSCH transmission of progress be NACK state., whereas if NACK is only adjusted in base station Degree, UE do not receive the NACK message of base station transmission such as during PUSCH transmission in the search space of base station configuration, then it is assumed that The PUSCH transmission of progress is ACK state.
(1) Scheduling content is omitted in group DCI, only carries several for determining the domain of UE transmission configuration resource; When base station is to carry out A/N feedback using the purpose of group DCI, if base station is only scheduled ACK, UE is obtained in DCI Behind the domain of its corresponding transmission configuration resource, it is believed that have received ACK, if base station is only scheduled NACK, UE is obtained pair in DCI Behind the domain for answering its transmission configuration resource, it is believed that have received NACK.
Eight, UE is decoded group DCI using the group-RNTI of oneself, if DCI can be solved successfully, according to pre- Definition/the UE identity of high-rise configuration and DCI in dispatching zone mapping relations, determine the associated dispatching zone position the UE, To solve the Scheduling content to the UE.
If nine, UE decoding obtains corresponding to from group DCI the ACK feedback result of some HARQ process, the subsequent rows of UE To include:
(1) when the ACK feedback result is used as ETS, at least one in following operation is executed:
1, stop ongoing PUSCH transmission corresponding with the ACK information;
2, the uplink authorization UL grant of base station configuration is emptied;
3, the remainder of the PUSCH transmission resource obtained from base station scheduling is discharged;
4, the caching of HARQ process is emptied;
5, stop to monitor physical downlink control channel PDCCH.
Preferably, in predefined time window or on predefined time point, according to predefined/high-rise configuration Priority or action selection configuration, UE carry out subsequent behavior (one or more in such as aforesaid operations 1~5).
If ten, UE decoding obtains NACK feedback result from single DCI or group DCI, UE continues not completing Transmission, or, if PUSCH head biography/current re-transmission is completed, UE triggers new PUSCH and retransmits.
11, extraly, group DCI configures UE suspension PDCCH and monitors;UE can be made in all ongoing HARQ processes Stop PDCCH monitoring automatically after all obtaining ACK feedback result, or can make to carry in each dispatching zone for matching in group DCI The field for whether stopping PDCCH monitoring set.
12, before base station sends single DCI or the group DCI for carrying A/N feedback result to UE and/or Later, continue to keep the monitoring to UE in the time window of one section of predefined length, to confirm it is anti-whether UE correctly received A/N Present result;If UE is received correctly, base station can proceed with subsequent scheduling, otherwise:
(1) if base station sends ACK, UE fails to be properly received feedback result, and triggering base station passes through single/group DCI ACK is sent to the UE again, or, base station carries real-time A/N when generating the group DCI for carrying out UL feedback next time again Feedback result.
(2) if base station sends NACK, UE fails to be properly received feedback result, and base station is sent again by single DCI NACK or directly scheduling UE are retransmitted accordingly.
13, the content of Group DCI includes following optional field:
(1) subframe index, PRB index: for determine the first running time-frequency resource regional location beginning and/or terminate subframe/ (sub-) serial number of PRB ((son) Physical Resource Block, (sub-) Physical Resource Block, (sub-) PRB);
(2) subframe lengths, PRB length: for determining the time domain and frequency domain length in the first running time-frequency resource region;
(3) time domain granularity, frequency domain granularity: when for determining that the first running time-frequency resource region is divided into minimum scheduling unit, (son) resource block number of each minimum scheduling unit time domain/frequency domain;For example, matching when time domain granularity is 1, it is 1 that frequency domain granularity, which is matched, When, if frequency domain configuration uses PRB rank, minimum scheduling unit is 1 PRB in LTE system;If frequency domain configuration uses muon physics Resource block (sub-PRB) rank, minimum scheduling unit are 1 sub-PRB in LTE system.For example, working as time domain granularity and frequency domain When the value of granularity is greater than 1, minimum scheduling unit is continuous several PRB or sub- on time domain and/or frequency domain in LTE system PRB。
(4) time domain serial number, frequency domain serial number:, should for determining when the first running time-frequency resource is divided into several regions The serial number in the corresponding region groupDCI;
(5) (time domain or frequency domain) resource granularity divides pattern: for predefining to the several of the specific running time-frequency resource of uplink When kind time domain and/or frequency domain divide pattern, the specifically used pattern type of group DCI is determined;
(6) Sub-PRB is identified: for determining that the frequency domain of the group DCI indicates that information is for PRB rank or needle To sub-PRB rank;
(7) Scheduling content: the scheduling feature of Scheduling content 1, each dispatching zone of Scheduling content 2 ... is identical or different, scheduling When function difference, each domain need to additionally point out the classification of scheduling feature or the length in the domain.
14, Group DCI is sent in the search space of down control channel as descending control signaling, can The search space of energy includes public search space (Common Search Space, CSS), the user's dedicated search defined at present Space (UE-specific Search Space, USS), or separately define a new group CSS (group common search sky Between) and send wherein.
(1) when sending group DCI using USS, in all scheduling informations with the group DCI, there are associated UE USS in sent;Same DCI may repeatedly be sent in different USS.
(2) using the CSS defined at present when, a part is preset in CSS and is used to or is served only for send group DCI's Resource location, other positions do not support the transmission of group DCI.
(3) using the group CSS separately defined when, it is empty that the group DCI newly defined a search is introduced in systems Between, which is allocated to a UE by base station and gathers, and the UE in the set is activated according to preset condition to the group The monitoring of the search space DCI.
(4) UE keeps monitoring to base station for all USS and CSS (s) of its configuration, empty by search space type/search Between the RNTI that uses of position/DCI group DCI and other DCI are distinguished;It supports to use when search space conflicts The search space priority of predefined/high-rise configuration.
The suspension in advance of PUSCH transmission or PDCCH monitoring is carried out in above step by using HARQ-ACK feedback DCI. Another method is to introduce the signal sequence for being exclusively used in being stopped in advance in systems.It abort signal sequence can should answer in advance With sleep (Go-To-Sleep, GTS) signal in MTC system, which includes by being sent out in existing system by GTS signal The suspension in advance that the PUSCH that the function for the sleep instruction sent additionally increases UE is received and PDCCH is monitored, also both UE receives existing system It also executes when GTS signal in system and stops in advance;And/or use a kind of sequence as abort signal in advance, the sequence in system Design it is identical with the design of GTS signal sequence, UE determines the sequence according to the resource location for receiving the sequence in advance to stop Signal or sleep signal.Or, the arrangement set separately defined should be used abort signal sequence in advance.
Abort signal sequence uses the transmission mechanism of similar DCI in advance, is sent out in the USS and/or CSS of UE by base station It send, the USS and/or CSS are to be allocated to UE defined in the type sequence dedicated new search space or existing system USS or CSS.
Embodiment one
UE1, UE2, UE3 initiate uplink to base station, and carry out respectively to base station for the PDCCH search space of its configuration It monitors.
Base station sends two DCI, the ACK feedback message of a single DCI transmission UE1, a group DCI to UE1 Transmit NACK feedback message of the UE1 for the running time-frequency resource position of UL transmission.
UE1 receives above two DCI in snoop procedure, according to single DCI priority in the priority of high level configuration Higher than group DCI, it is believed that UL transmission success.
Base station sends two DCI to UE2, the UL grant scheduling message of single DCI transmission UE2, and one Group DCI transmits NACK feedback message of the UE2 for the running time-frequency resource position of UL transmission.
UE2 receives above two DCI in snoop procedure, according to UL grant dispatching priority in predefined priority It is fed back higher than A/N, executes the dispatch command carried in UL grant.
Base station is properly received the upstream data of UE3, does not send the DCI for feedback to UE3.
UE3 completes to start a timer after UL is transmitted, and after the timer expiry, UE3 does not receive any base station yet and sends To the single DCI or group DCI of itself, UE3 thinks this UL transmission success, does not restart re-transmission.
Embodiment two
Under MTC ETS scene, base station 1 sends single DCI for carrying A/N feedback message to UE1, is multiplexed DCI format 6-0A/B。
When UE1 is coverage enhancement mode (Coverage Enhancement mode, CE mode) A, existing DCI Resource allocation field in format 6-0A has minimum 11 kinds according to the maximum PUSCH bandwidth and system bandwidth of configuration, and most 176 The not used value of kind.If in UE1 current DCI format 6-0A, the value that resource allocation field has M kind to be not used by, then It executes at least one of following movement: wherein any 8 values is respectively defined as to the biography of 8 UL HARQ process processes of UE1 Defeated suspension in advance;Wherein any one value is defined as to the suspension in advance of the transmission of all UL HARQ processes of UE1;It will Wherein any one value is defined as the suspension in advance of the PDCCH channel-monitoring of UE1;It will wherein any 8 values define respectively For 8 UL HARQ processes of UE 1 and the suspension in advance of PDCCH channel-monitoring;Wherein any one value is defined as UE1's The suspension in advance of the transmission of PDCCH channel-monitoring and all HARQ processes.In addition, several any values can wherein will also define For the suspension in advance of the transmission of several any HARQ processes.
Specifically, it is assumed that the maximum PUSCH transmission bandwidth of UE1 is 1.4MHz, system bandwidth 1.4MHz, DCI format The not used value of resource allocation field is 11 in 6-0A, and wherein n-th is defined as to the HARQ process #N of corresponding UE 1 in order With the suspension in advance of PDCCH channel-monitoring, N is the integer between 1 to 8, is defined as all of corresponding UE 1 for wherein the 9th Wherein the 10th is defined as the suspension in advance of the PDCCH channel-monitoring of corresponding UE 1 by the suspension in advance of HARQ process, will wherein 11st is defined as all HARQ processes and the suspension in advance of PDCCH channel-monitoring of corresponding UE 1.
When UE1 is coverage enhancement mode (Coverage Enhancement mode, CE mode) B, 11 kinds of tune are supported System and encoding scheme (Modulation and Coding Scheme, MCS) index (index), have 5 kinds not made in the domain MCS Value, as shown in table 1.It can at least one of as follows setting: will wherein any 2 values be respectively defined as The suspension in advance of the transmission of 2 UL HARQ processes of UE1;Wherein any one value is defined as to all UL HARQ of UE1 The suspension in advance of the transmission of process;Wherein any one value is defined as to the suspension in advance of the PDCCH channel-monitoring of UE1;It will Wherein any 2 values are respectively defined as the 2 UL HARQ processes and the suspension in advance of PDCCH channel-monitoring of UE1;It will wherein Any one value is defined as the suspension in advance of the PDCCH channel-monitoring of UE1 and the transmission of all HARQ processes.In addition, may be used also Wherein several any values are defined as to the suspension in advance of the transmission of several any HARQ processes.
The PUSCH MCS mapping table of 1 CE mode B of table
Specifically, MCS index 11,12 is defined as to the suspension in advance of HARQ the process #0, #1 of corresponding UE 1 in order, it will MCS index 13 is defined as the suspension in advance of all HARQ processes of corresponding UE 1, and MCS index 14 is defined as corresponding UE 1 MCS index 15 is defined as all HARQ processes and PDCCH channel-monitoring of corresponding UE 1 by the suspension in advance of PDCCH channel-monitoring Suspension in advance, as shown in table 2.
The PUSCH MCS mapping table of table 2CE mode B is used to indicate MTC ETS
Under MTC ETS scene, base station 2 sends single DCI for carrying A/N feedback message to UE2, is multiplexed DCI format 6-0A/B.As described above, the resource allocation field at CE mode A (coverage enhancement Mode A) or mode B in DCI Or there are at least five kinds of values being not used by the domain MCS.Can at least one of as follows setting: will wherein any one Value is defined as the suspension in advance of the transmission of all UL HARQ processes of UE2;Wherein any one value is defined as UE2's The suspension in advance of PDCCH channel-monitoring;Wherein any one value is defined as to the PDCCH channel-monitoring and all HARQ of UE2 The suspension in advance of the transmission of process;Wherein any one value is defined as to the transmission of the specific UL HARQ process of UE2 Stop in advance, and is multiplexed the number that HARQ process number domain indicates the specific HARQ process;It will wherein any one value define For UE2 specific UL HARQ process transmission and PDCCH channel-monitoring suspension in advance, and be multiplexed HARQ process number Domain indicates the number of the specific HARQ process.
Under MTC ETS scene, base station 3 sends single DCI for carrying A/N feedback message to UE3, is multiplexed DCI Format 6-0A/B, and change the meaning of wherein any X bit field, by it in a manner of bitmap respectively with X HARQ into Cheng Jincheng is corresponding, respectively indicates A/N feedback result with 0 and 1.X is 8 at CE mode A, is 2, X ratio at CE mode B The special specific position of field is predefined at UE.The single DCI can be by using different RNTI and existing DCI Format 6-0A/B is distinguished.
Embodiment three
Support the UE for using group DCI to carry the feedback message as ETS that should obtain group DCI from base station in advance Configuration information.The configuration information of Group DCI can be obtained by higher layer message, wherein at least include one or more group- RNTI additionally may include UE corresponding serial number in each group-RNTI.
It is passed referring to Fig. 2, UE carries out lasting or intermittent data on PUSCH running time-frequency resource of the base station for its scheduling It is defeated, and the monitoring for being configured to the PDCCH channel of search space is kept, blind examination is carried out to the possible DCI signal listened to, And group-RNTI based on configuration carries out CRC (cyclic redundancy check) decoding and attempts, when being configured more than one group- It is attempted one by one using group-RNTI when RNTI.For FD-FDD (full duplex frequency division duplex) UE, if the PUSCH of configuration is passed Defeated and PDCCH monitor resource position exists in the time domain to be overlapped, and UE is carried out in UL the and DL resource area of configuration respectively simultaneously PUSCH transmission and PDCCH are monitored;For HD-FDD (half-duplex frequency division duplex) UE, if the PUSCH transmission of configuration and PDCCH prison Listen resource location in the time domain exist be overlapped, overlapping region is not supported simultaneously UL the and DL resource area of configuration respectively into Row PUSCH transmission and PDCCH are monitored, and UE will be selected between UL (uplink) transmission and DL (downlink) are monitored according to preset priority The higher behavior of a kind of priority is selected, for example, preferentially carrying out the transmission of PUSCH always;For TDD (time division duplex) UE, due to DL resource and UL resource in all kinds of TDD configurations are not overlapped in time domain, and base station is the UL PUSCH transmission of TDD UE configuration There is no coincidences in time domain for resource and DL PDCCH monitor resource.
If the group-RNTI that UE is configured using some reads base from the DCI to the DCI successfully decoded listened to, UE Station is sent to the A/N feedback information of the UE.UE may determine how the A/N information read in the DCI by following any combination: The content for the message field that DCI is carried, DCI transmit the running time-frequency resource position used, decode the group-RNTI that the DCI is used, The parameter and mapping relations of configuration be pre-configured or high-rise.
For example, UE1 receives group DCI#0 and successfully decoded, UE1 is according to the time-domain resource position of group DCI#0 Subframe [t1=10, t2=11] determines the PUSCH time domain of group DCI#0 instruction using preset parameter k1=10, k2=7 Resource area is subframe [t1-k1, t1-k2] namely subframe [0,3];It is PRB [# according to the frequency domain resource position of group DCI#0 A1, #a2], using preset mapping relations, determine that the PUSCH frequency domain resource region of group DCI#0 instruction is PRB [#b1= 0, #b2=1];According to the PUSCH resource time domain granularity of pre-configuration and the frequency domain PUSCH resource location of pre-configuration and support The mapping relations of PUSCH resource frequency domain granularity determine that the frequency domain resource granularity supported on PRB [#0, #1] is 1 PRB, thus really The PUSCH resource granularity (referred to as one minimum scheduling unit) for determining the running time-frequency resource region of group DCI#0 instruction is time domain one A one RB of subframe * frequency domain shares 8 minimum scheduling units in the running time-frequency resource region.The PUSCH that UE1 is used according to itself Position of the transfer resource in the running time-frequency resource region be subframe [1,2] and PRB#1, it is preferential according to predefined time domain, then The mapping order of frequency domain determines that the PUSCH transmission resource itself used is located at continuous 6 to 7th minimum in the time-frequency region Scheduling unit.When UE1 obtains A/N feedback message from group DCI#0, it is long to read the domain A/N carried in group DCI#0 Degree is the content of the 6 to 7th bit in the bitmap of 8 bits.It is assumed that UE1 carried out in subframe 1, PRB#1 UL HARQ into The transmission of journey #0 carries out the transmission of UL HARQ process #1, the then domain A/N carried in group DCI#0 in subframe 2, PRB#1 The 6th bit is the A/N feedback result of HARQ process #0 in bitmap, and the 7th bit is the A/N feedback result of HARQ process #1.
For example, UE2 receives group DCI#1 and successfully decoded, UE2 is according to the time-domain resource position of group DCI#1 The serial number of the minimum scheduling unit classified types carried in subframe t3=12 and group DCI#1, in predefined minimum scheduling Corresponding parameter k3=12, k4=9 are found in dividing elements type table, determine the PUSCH time domain money of group DCI#1 instruction Source region is subframe [t3-k3, t3-k4] namely subframe [0,3], and the PUSCH frequency domain resource region of instruction is PRB [#b3=8, # B4=11], PUSCH resource granularity (referred to as one minimum scheduling unit) is one subframe * frequency domain of time domain, 2 RB, time-frequency money 8 minimum scheduling units are shared in source region.The PUSCH transmission resource that UE2 is used according to itself is in the running time-frequency resource region Position be subframe [1,2] and PRB [#8, #9], the mapping order of subsequent frequency domain preferential according to predefined time domain, determine oneself The PUSCH transmission resource that body uses is located at continuous 2 to 3rd minimum scheduling unit in the time-frequency region.UE2 is from group When obtaining A/N feedback message in DCI#1, the 2 to 3rd bit in the domain the A/N bitmap carried in group DCI#1 is read Content.It is assumed that UE2 carries out the transmission of UL HARQ process #0 on subframe [1,2], PRB [#8, #9], then in group DCI#0 The A/N length of field of carrying is the A/N feedback result that the 2nd and the 3rd bit is HARQ process #0 in the bitmap of 8 bits, decoding The A/N value of feedback obtained is answered identical.Otherwise it is handled as error situation, for example, UE thinks that this decoding DCI is erroneous detection, processing Mode, which is equal to, does not receive A/N feedback, and using without the A/N state defaulted when feeding back.
For example, UE3 receives group DCI#2 and successfully decoded, UE3 is according to the time-domain resource position of group DCI#2 Subframe t5=13 determines that the PUSCH time-domain resource region of group DCI#2 instruction is subframe using preset parameter k5=7 T5-k5 namely subframe 6;It is determined according to the group-RNTI for decoding group DCI#2 using preset mapping relations The PUSCH frequency domain resource region of group DCI#2 instruction is PRB [#b1=0, #b2=1];It is carried according in group DCI#2 Sub-PRB mark, determine that frequency domain parameter in group DCI#2 uses sub-PRB rank;It is taken according in group DCI#2 The minimum scheduling unit frequency domain granularity of division of band is 3 subcarriers, determines the running time-frequency resource region of group DCI#2 instruction PUSCH resource granularity (referred to as one minimum scheduling unit) is one subframe * frequency domain of time domain, 3 subcarriers, the running time-frequency resource area 8 minimum scheduling units are shared in domain.Position of the PUSCH transmission resource that UE3 is used according to itself in the running time-frequency resource region It is set to subframe 6 and the subcarrier [#3, #5] of PRB#0, the mapping order of subsequent frequency domain preferential according to predefined time domain determines The PUSCH transmission resource itself used is located at the 2nd minimum scheduling unit in the time-frequency region.UE3 is from group DCI#2 When obtaining A/N feedback message, reading the A/N length of field carried in group DCI#2 is the 2nd in the bitmap of 8 bits The content of bit.
For example, UE4 carries out PUSCH transmission in subframe 1, PRB#1, it is overlapped, leads to the part PUSCH transmission resource of UE1 It crosses different DMRS to distinguish, and UE1 and UE4 are configured for different group-RNTI.UE4 receives group DCI#0/1/2, but The non-successfully decoded of whole group-RNTI for being allocated to UE4 with base station, UE4 think that the A/N feedback for not receiving base station transmission disappears Breath.
UE, according to A/N state, is determined subsequent from being obtained after base station is sent to the A/N feedback information of the UE in group DCI Behavior.If UE obtains ACK feedback from group DCI, next subframe of the UE after decoding group DCI stops ACK feedback The transmission of corresponding UL HARQ process, and corresponding residue PUSCH resource is discharged, extraly, UE is in all ongoing UL After HARQ process all end of transmissions or acquisition ACK feedback, stop the monitoring to PDCCH channel.If UE is obtained from group DCI NACK feedback, UE continue unfinished PUSCH transmission or UE and are retransmitted by NACK triggering PUSCH.
It should be noted that it will be understood by those skilled in the art that method for the embodiment of the present invention, i.e. UE are true first Fixed specific running time-frequency resource region, further according to phase of the running time-frequency resource position used in PUSCH in the specific running time-frequency resource region To position, determines corresponding scheduling information in DCI, may be equally applicable for single DCI.The difference is that described The scheduling information to a UE is only carried in DCI, other contents refer to description above.
Example IV
Support is determined as follows frequency domain resource:
Frequency domain originates PRB index, and PRB length/frequency domain terminates PRB index, and frequency domain minimum scheduling unit granularity of division/ Number/pattern }.
Or, frequency domain indexes, and may be additionally using any combination of parameter in following set: { PRB length, minimum scheduling Unit frequency domain granularity, minimum scheduling unit frequency domain number, minimum scheduling unit divide pattern }.
In addition, supporting the frequency domain resource using PRB rank and Sub-PRB rank, it can be identified and be distinguished by Sub-PRB, or, It can be distinguished by RNTI, namely the specific RNTI in part can only be tied to PRB rank/sub-PRB rank, or, can pass through Specific wide of the subband in part can be tied to sub-PRB rank in frequency domain position differentiation namely transmission bandwidth.Further, make When with sub-PRB rank, it can only support limited several sub-PRB granularities, equally can carry out area by RNTI or frequency domain position Point.When using sub-PRB rank, support that all frequency domain parameters are sub-PRB rank, also support be pre-configured/high-level signaling The part frequency domain parameter of configuration uses sub-PRB rank, remaining frequency domain parameter uses PRB rank.
Support is determined as follows time-domain resource:
Time domain originates subframe index (difference between DCI transmission subframe (transmission intercal) can be used), subframe lengths/when Domain terminates subframe index, time domain minimum scheduling unit granularity of division/number/pattern }.
Or, when Domain Index, and may be additionally using any combination of parameter in following set: { subframe lengths, minimum scheduling Unit time domain granularity, minimum scheduling unit time domain number, minimum scheduling unit divide pattern }.
Support configures time and frequency parameter as follows: predefined/to be pre-configured, high-level signaling configuration, explicit or implicit in DCI It carries, the RNTI mapping used according to group DCI obtains, and is mapped and is obtained according to the time-frequency location of DCI.
Any given RNTI that Group DCI is used can correspond to predefined one section of frequency domain and/or time-domain resource position, Or, any one given group-RNTI can correspond in a kind of group DCI each bit of A/N feedback field and specific Mapping relations between frequency domain position.
Any given RNTI that Group DCI is used can correspond to the set of a UE or multiple UE, namely can give specific The given RNTI of one or more UE configuration.
One or more group-RNTI are defined, any one given group-RNTI can pass through pre-configuration or high-rise letter Configuration is enabled to be mapped to several continuous or discontinuous frequency domain subchannels, every sub-channels and each of the A/N feedback field in DCI Bit is corresponding by putting in order.
It can be obtained above by predefined or high-rise configuration.
Referring to Fig. 3, for example, group DCI is transmitted in base station on subframe [t1, t2] carries out UL A/N feedback, according to pre- The mapping relations of definition, it is time domain from subframe t1-k1 to subframe t1-k2 which, which corresponds to running time-frequency resource position, and frequency domain is N*M PRB in transmission bandwidth.K1, k2, n, M are predefined values, and wherein M is frequency domain minimum scheduling unit granularity of division, when Domain minimum scheduling unit granularity of division is k or is predefined as 1, the group- that the initial position of frequency domain is used according to group DCI The index of RNTI is calculated.Or, the value of k1, k2, n, M directly carry in DCI.Or, k1, k2 are predefined values, when Domain minimum scheduling unit granularity of division is predefined as 1, and the start/end of frequency domain is set and frequency domain minimum scheduling unit granularity of division It is directly carried in DCI, carrying mode is the serial number provided in predefined minimum scheduling unit division pattern table.Support t1 =t2, k1=k2.
Referring to Fig. 4, base station transmission group DCI carries out UL A/N feedback, it include that sub-PRB is identified in group DCI Domain and the domain value are 1, namely carry be sub-PRB rank information.Frequency domain is carried in Group DCI originates PRB index It is 0, minimum scheduling unit divides pattern=K.According to the content of pre-configuration, in the N number of of transmission bandwidth frequency domain lowest frequency position PRB only supports that granularity is the sub-PRB resource of 3 subcarriers and 6 subcarriers, and the group-RNTI according to group DCI is true The fixed group-RNTI supports that granularity is the sub-PRB resource of 1/2/3 subcarriers, therefore the use of granularity is finally 3 The sub-PRB rank minimum scheduling unit of subcarrier divides K division modes in pattern table.
Embodiment five
Base station transmits group DCI on subframe n and carries out UL A/N feedback, according to predefined mapping relations, the group It is time domain from subframe n-k-3 to subframe n-k that DCI, which corresponds to running time-frequency resource position, and frequency domain position is the 4M of the top in transmission bandwidth A PRB.According to predefined time domain and frequency domain minimum scheduling unit granularity, it is single which is divided into 16 minimum scheduling Member, the asset size of each minimum scheduling unit are 1 subframe of time domain, frequency domain M continuous PRB, as shown in Figure 5.Note: Fig. 5 The non-minimum scheduling unit number of the label of middle band # is only used for describing each minimum scheduling unit.
Scene one:
Referring to Fig. 6, preferential according to frequency domain, the sequence that time domain is taken second place is that minimum scheduling unit is numbered namely #00 is compiled Number for minimum scheduling unit 0, #10 number is that minimum scheduling unit 1 ... #23 number is minimum scheduling unit 15, and #33 number is Minimum scheduling unit 16.When base station is using the A/N feedback that group DCI is that UE sends HARQ process, used in group DCI The A/N feedback of the corresponding above 16 minimum scheduling units of the bitmap that length is 16.
For example, when UE1 transmits HARQ process #1 on minimum scheduling unit 1 (#10), in minimum scheduling unit 15 (#23) When transmitting HARQ process #1 on minimum scheduling unit 4 (#01), the value that bitmap is the 2nd is upper transmission HARQ process #0, UE2 The A/N feedback result of UE1HARQ process #1, the value that bitmap is the 5th are the A/N feedback result of UE2HARQ process #1, bitmap 15th value is the A/N feedback result of UE1 HARQ process #0.Specifically, can be used in bitmap " 0 " expression NACK, With " 1 " expression ACK.
Scene two:
Referring to Fig. 7, being grouped again in this scene to minimum scheduling unit, minimum is dispatched by the method in figure Dividing elements are group 0/1/2/3.UE1/2/3/4 carries out PUSCH transmission in group 0/1/2/3 respectively.When base station uses group When DCI is the A/N feedback that UE sends HARQ process, 4 minimums more than the bitmap for being 4 with length in group DCI is corresponding The A/N feedback of scheduling unit group.
Or, minimum scheduling unit group is not used in this scene, when base station is that UE sends HARQ process using group DCI A/N feedback when, the A/N feedback of 4 UE more than the bitmap for being 16 with length in group DCI is corresponding, each It is fed back in the corresponding domain DCI of minimum scheduling unit of the transmission initial position of UE.For example, at the 1st, 5,9,13 of bitmap The feedback result of UE1,2,3,4 is carried respectively.
Scene three:
Referring to Fig. 8, preferential according to frequency domain, the sequence that time domain is taken second place is that minimum scheduling unit is numbered namely #00 is compiled Number for minimum scheduling unit 0, #10 number is that minimum scheduling unit 1 ... #23 number is minimum scheduling unit 15, and #33 number is Minimum scheduling unit 16.When base station is using the A/N feedback that group DCI is that UE sends HARQ process, used in group DCI The A/N feedback of the corresponding above 16 minimum scheduling units of the bitmap that length is 16.
For example, HARQ process #1 is transmitted on #30/31/32 when UE1 transmits HARQ process #1, UE2 on #01/02/03, When transmitting HARQ process #0 on #33, the value that bitmap is the 5th, 9,13 is the A/N feedback result of UE1 HARQ process #1, the 4,8,12 values are the A/N feedback result of UE2HARQ process #1, and the A/N that the 16th value is UE2HARQ process #0 feeds back knot Fruit.Base station can assign identical take for multiple bits in the corresponding bitmap of the same HARQ process process of the same UE Value, if UE solves different values, then it is assumed that be erroneous detection.
Scene four:
Preferential according to frequency domain, the sequence that time domain is taken second place is that minimum scheduling unit is numbered namely #00 number is most ditty Unit 0 is spent, #10 number is that minimum scheduling unit 1 ... #23 number is minimum scheduling unit 15, and #33 number is that minimum scheduling is single Member 16.It is assumed that could support up 2 kinds of code words on a minimum scheduling unit, distinguished by DMRS.When base station is using group DCI When UE sends the A/N feedback of HARQ process, the bitmap for being 32 with length in group DCI corresponding above 16 minimum to be dispatched The A/N feedback of unit, as shown in table 3.
3 one, table minimum scheduling units support two kinds of code words
For example, the DMRS of UE1 and UE2 are right respectively when UE1 and UE2 is transmitted on minimum scheduling unit 1 (#10) Code word 1 and code word 2 are answered, then bitmap the 3rd value is the A/N feedback result of UE1, and the value that bitmap is the 4th is the A/N of UE2 Feedback result.
Scene five:
Preferential according to frequency domain, the sequence that time domain is taken second place is that minimum scheduling unit is numbered namely #00 number is most ditty Unit 0 is spent, #10 number is that minimum scheduling unit 1 ... #23 number is minimum scheduling unit 15, and #33 number is that minimum scheduling is single Member 16.It is assumed that could support up 8 kinds of code words on a minimum scheduling unit, distinguished by DMRS.When base station is using group DCI When UE sends the A/N feedback of HARQ process, in group DCI with 16 dispatching zones it is corresponding more than 16 minimum scheduling units A/N feedback includes the A/N that length is 1 bit and the codeword number that length is 3 bits in each dispatching zone.Each scheduling Information bit in domain can be it is continuous or discrete, for example, one long 16 bit of the A/N of 16 dispatching zones Bitmap, continuous 48 bit of codeword number of 16 dispatching zones.
For example, DMRS corresponds to code word 011, the 2nd dispatching zone when UE1 is transmitted on minimum scheduling unit 1 (#10) In A/N value be UE1 A/N feedback result, codeword number domain be 011.This method has multiple on same minimum scheduling unit When UE is transmitted, the feedback of one of UE can only be once carried out.
Scene six:
Preferential according to frequency domain, the sequence that time domain is taken second place is that minimum scheduling unit is numbered namely #00 number is most ditty Unit 0 is spent, #10 number is that minimum scheduling unit 1 ... #23 number is minimum scheduling unit 15, and #33 number is that minimum scheduling is single Member 16.It is assumed that could support up 8 kinds of code words on a minimum scheduling unit, distinguished by DMRS.
When base station is using the A/N feedback that group DCI is that UE sends HARQ process, with N number of scheduling in group DCI Domain corresponds to the A/N information of at most N number of UE HARQ processes, includes that 4 bit minimum scheduling units number and 3 are compared in each dispatching zone Special codeword number.
When UE transmission is failed, base station does not carry out A/N feedback to UE;After UE transmission is properly received by base station, Base station is in sending group DCI by carrying to the ACK feedback information of the UE.UE does not receive base station within the UL transmitting continuous time The A/N feedback message of transmission, then it is assumed that UL transmission is not yet successful.
For example, when UE1 is transmitted on minimum scheduling unit 1 (#10), when DMRS corresponds to code word 011, if base station is sent The transmission of UE1 received success when group DCI, then any one in N number of dispatching zone carries minimum scheduling unit and compiles Number domain is 0001, and codeword number domain is 011.This method on same minimum scheduling unit when having multiple UE to be transmitted, once It can carry out the feedback of multiple UE.
Scene seven:
Preferential according to frequency domain, the sequence that time domain is taken second place is that minimum scheduling unit is numbered namely #00 number is most ditty Unit 0 is spent, #10 number is that minimum scheduling unit 1 ... #23 number is minimum scheduling unit 15, and #33 number is that minimum scheduling is single Member 16.It is assumed that supporting multiple UE simultaneous transmissions on a minimum scheduling unit, and multiple UE all have different RNTI.
When base station is using the A/N feedback that group DCI is that UE sends HARQ process, UE carries out DCI with itself RNTI Decoding, only when that can solve, it is believed that the A/N feedback for being sent to itself is carried in the corresponding domain DCI.
For example, UE1 RNTI solves DCI success when UE1 and UE2 are transmitted on minimum scheduling unit 0 (#00), Then think the A/N feedback result that the bitmap of 16 bit lengths in DCI upper 1st is UE1;UE2 RNTI solves DCI failure, then Think the A/N feedback result without UE2 in DCI.This method on same minimum scheduling unit when having multiple UE to be transmitted, once It can only carry out the feedback of a UE.
Scene eight:
Base station is one number of configuration when UE configures group-RNTI, and UE is N according to number, can be solved with group-RNTI The n-th dispatching zone of DCI out is obtained to the Scheduling content of itself.
Embodiment six
It is as shown in Figure 9 when group DCI carries A/N feedback as ETS signal under MTC scene.
Base station generates a group DCI in subframe n-k2+1 and sends at subframe [n, n+m1], is sent to wherein carrying The ACK message of UE1 and UE2.
UE1, which receives the group DCI of base station transmission and solves, wherein the ACK message for being sent to itself, in subframe n+m1+ 1 terminates PUSCH transmission, and release is scheduled to the remainder of the PUSCH resource of UE1 before this, and terminates PDCCH monitoring.
UE2, which receives the group DCI of base station transmission and mistakenly solves, wherein the NACK message for being sent to itself, continues PDCCH monitoring is carried out, continues PUSCH transmission or triggered by NACK to carry out PUSCH re-transmission.
Base station keeps the whole UE dispatched to the group DCI in time window subframe [n-k2+1, n+m2] (m2 > m1+1) It is monitored, after subframe n+m1+1, is scheduled to the PUSCH transmission for no longer receiving UE1 on the running time-frequency resource of UE1, it is believed that UE1 received correctly group DCI, and the surplus resources for being scheduled to UE1 before are rescheduled and carry out UL transmission to other UE.Root After subframe n+m1+1, it is scheduled to the PUSCH transmission for remaining to receive UE2 on the running time-frequency resource of UE2, it is believed that UE2 garbled-reception Group DCI.Base station sends the single DCI of a carrying ACK message to UE2, or, base station generates group in next time When DCI, since UE2 is still carrying out PUSCH transmission in the corresponding running time-frequency resource of the DCI, the ACK that carrying is sent to UE2 again disappears Breath, or, base station next time generate group DCI when, since UE2 no longer carries out PUSCH transmission in the corresponding running time-frequency resource of the DCI Or since the PUSCH transmission of UE is in the running time-frequency resource, no longer carries the ACK message for being sent to UE2 or carry hair Give the NACK message of UE2.
UE3 starts the timer that a length is t after the UL end of transmission, and keeps the monitoring to PDCCH, fixed at this When device after do not receive yet base station transmission feedback message, UE3 using default feedback states.The feedback states of default are ACK, UE3 terminate UL transmission.The feedback states of default are NACK, and the UL that UE3 carries out limited times retransmits trial or limited times is sent UL retransmission request.
Embodiment seven
The transmission that group DCI is carried out in the CSS defined in current MTC, by RNTI and same search space Other DCI are distinguished.
Or, the dedicated group CSS of a group DCI is newly defined in MTC, if subsequent support in the group CSS Other are used to dispatch the DCI of multiple UE, are distinguished between the DCI of different purposes by RNTI.
Or, the transmission of group DCI is carried out in the USS defined in current MTC, specifically, for given certain Group DCI carries out the transmission of group DCI in the USS of the associated all or part of UE of the DCI;In addition, working as subframe The A/N feedback of the UE of the transmission of PUSCH is carried out in group DCI instruction subframe [n1-k1, n1-k2] transmitted on [n1, n2] When, if the USS configuration range of some UE does not include [n1, n2] or any subframe n, n1≤n≤n2, the A/N of the UE is fed back It should be fed back in another DCI for meeting transmission time sequence;DCI can be made to meet the suitable n of transmission time sequence if it does not exist, K can be fed back by way of indicating single UE/HARQ process in a DCI, or cancelled and being fed back to the A/N of the UE.
Wherein, the method for newly defining the dedicated group CSS of a group DCI in MTC, specifically, comprising:
Introduce a search space newly defined, the monitoring for UE to group DCI.The search space quilt of the new definition Base station is allocated to a UE set, and to all UE in the set, the new definition search space of the group DCI used is matched Confidence breath is consistent.UE quantity in the set can be one or more, should when the UE quantity in the set is one Search space is USS, and when the UE quantity in the set is multiple, which is the CSS of UE set.
When UE obtains the configuration information of search space from base station, additionally by high-level signaling or broadcast message, one is obtained The configuration information of the search space newly defined.The time-domain position of the search space of the new definition and base station be allocated to UE other solely The time-domain position of vertical search space USS and/or public search space CSS is all different, or, exist between time-domain position it is complete or Partial coincidence.
The configuration method of the time-domain resource of the search space of the new definition is multiplexed current mechanism, and the meter of subframe is originated to it Calculation method has following change: initial subframe number k '=k+ α T, wherein k is the search space being calculated by current mechanism in MTC Originating subframe, (current mechanism is k=k in MTCb, kbIt is from subframe k0The low covering of continuous b-th of the downlink started/covering increases Hadron frame, k0It is the parameter of parameter preset or high-rise configuration with b), T is the search space period, and α is additional increased base in system It stands configuration parameter.
The field being all different for the time-domain position of search space and other search space time-domain positions of UE that newly define Scape, the frequency domain position of the search space newly defined and other search space frequency domain positions of UE are identical or different.In the scene, When original search space of UE and the search space newly defined are configured for identical starting subframe parameter k, α T is greater than Or the time domain length of other original search spaces equal to UE.The example one in Figure 10 and the example in Figure 11 two are please referred to, Original search space of UE and the search space newly defined use different frequency domain resources in example one, and α T is greater than other of UE The time domain length of original search space;Original search space of UE and the search space newly defined use identical in example two Frequency domain resource, α T equal to UE other original search spaces time domain length.
There are the feelings being overlapped with other search space time-domain positions of UE in the time-domain position of the search space for newly defining Condition, the frequency domain position of the search space newly defined and other search space frequency domain positions of UE are identical.In the scene, in the original of UE When some search spaces and the search space newly defined are configured for identical starting subframe parameter k, α T is more than or equal to 0, And the time domain length of other original search spaces less than UE.The example three in Figure 12 and the example in Figure 13 four are please referred to, The time domain length of other original search spaces of the α T less than UE in example three, original search space of UE and what is newly defined search The time-domain resource in rope space partially overlaps, and uses identical frequency domain resource;Original search of the α T equal to 0, UE is empty in example four Between and the time domain of search space and frequency domain resource that newly define all be overlapped.
Or, what the time-domain position of the search space for newly defining was overlapped with the presence of other search space time-domain positions of UE Situation, the frequency domain position of the search space newly defined and other search space frequency domain positions of UE are adjacent in frequency domain.
In addition, be all different in the time-domain position of the search space newly defined and other search space time-domain positions of UE Under scene, the calculation method of the starting subframe of the search space newly defined using another kind: Figure 14, initial subframe number k ' are please referred to =k1+ α T, first subframe or first effective subframe of downlink after wherein k1 is the original search space UE, T are to search Rope space periodic, α are that additional increased base station configuration parameter, α are greater than or equal to 0 in system.
When the search space newly defined is configured to a UE set containing multiple UE as CSS, Figure 15 is please referred to The search space resource allocation example of middle offer, wherein the CSS newly defined is configured on frequency domain resource #M, and starting subframe is K '=k+ α T;Original search space of UE1 is configured on frequency domain resource #M, and starting subframe is k, the new definition CSS and original of UE1 There is the time-domain resource of search space different, frequency domain resource is identical;Original search space of UE2 is configured on frequency domain resource #N, Starting subframe is k, and the new definition CSS of UE2 and the time domain and frequency domain resource of original search space are different.
In the search space newly defined being introduced into systems, the Downlink Control Information DCI that base station is sent includes being configured with The shared group DCI of the new UE set for defining search space, it is also possible to the proprietary DCI including the UE in UE set. Group DCI length in the search space can be identical as the DCI length in USS and/or CSS existing in system, or, DCI length is less than the DCI length in existing USS and/or CSS.
UE keeps monitoring to base station for all USS and CSS (s) of its configuration, and passes through search space type and/or DCI The RNTI that position and/or DCI in search space use distinguishes whether the DCI received is group DCI, and may determine receipts To the scheduling feature that specifically carries of DCI, for example, carrying A/N feedback.
Wherein, the method for newly defining the dedicated group CSS of a group DCI in MTC, UE are it to base station The search space of configuration newly defined is monitored, including, UE obtains the configuration information of the search space newly defined from base station, When meeting the precondition for monitoring activation, start the monitoring to the search space.The precondition for monitoring activation includes following Meaning combination: UE currently has PUSCH transmission in progress or PDCCH in progress to monitor;UE is currently ongoing For PUSCH transmission from the scheduling information that base station obtains, number of repetition is more than threshold k 1;The current ongoing PUSCH transmission of UE The number of repetition that transmission is completed is more than threshold k 2.For example, in K1=0, when K2=0, UE to the search space newly defined always It is monitored, also both the behavior of monitoring covers the resource location in the search space each period.
When the search space (CSS, group CSS, USS) of configuration conflicts, UE is according to predefined/high-rise configuration Priority determines the currently search space type monitored, or the DCI received with all possible RNTI in collision position into The blind solution of row.Wherein, UE determines the search space type currently monitored according to the priority of predefined/high-rise configuration, including, When there is conflict in the search space resource location of configuration, and UE can not be while listening for the resource location of all search spaces, UE The search space resource location currently monitored is determined according to the priority of predefined/high-rise configuration.
When the search space of configuration conflicts with other channels (such as PDSCH), UE is searched according to what is obtained from base station The priority in rope space and other channels is monitored or is transmitted to the channel or search space of high priority, abandoned to low excellent The monitoring or transmission of first grade channel or search space.It is newly defined for example, the PDSCH priority that base station is UE configuration is higher than The priority of the search space group DCI is abandoned when UE needs to receive at the same time PDSCH and monitors the search space newly defined Monitoring to the search space carries out PDSCH reception.
Above method reusable in the present embodiment in the field NB-IoT, additionally it is originated the calculation method of subframe into Row explanation: similarly, initial subframe number k '=k+ α T, wherein k is the search space being calculated by current mechanism in NB-IoT Originating subframe, (current mechanism is k=k in NB-IoTb, kbIt is from subframe k0Continuous b-th of NB-IoT downlink subframe started, k0It is eligibleWherein nfFor the frame number of k0, nsFor the subframe numbers of k0, αoffsetIt is with b Parameter preset or the parameter of high-rise configuration), T is search space period (being multiplied to obtain with G by the parameter Rmax of high level configuration), α For increased base station configuration parameter additional in system.
Embodiment eight
In the typical scenes such as grant-free uplink, one section of continuous UL running time-frequency resource is allocated to several by base station A UE carries out UL transmission competition-based for it.In grant-free scene, different users can be used different code words, lead Frequency signal, multiple access access signature (Multiple Access Signature, MA Signature) are enterprising in identical running time-frequency resource Row transmission.
In one specific example, it is one group that multiple UE are matched in base station, and in the group, UE1, UE2, UE3 are voluntarily selected wherein Transmission of the running time-frequency resource for multiple HARQ processes is selected, it is specific such as Figure 16.
Figure 16 is please referred to, UE1/2/3 starts the timer of A/N feedback when terminating the transmission of 1 process of HARQ Timer1, and continue the transmission of 2 process of HARQ.Base station sends to this group of UE within the timer1 duration and carries A/N letter The group DCI of breath, UE1/2/3 obtains the HARQ that base station is sent in corresponding 3 bit positions respectively in the bitmap of A/N 1 feedback.
UE1/2/3 terminate 2 process of HARQ transmission when, start an A/N feedback timer timer2, and according to The feedback result of HARQ1 determines subsequent behavior.UE1 receives ACK feedback, stops subsequent transmission;UE2 receives ACK feedback, subsequent New data are sent using HARQ1 in resource;UE3 receives NACK feedback, is retransmitted on following resource using HARQ1.With This simultaneously, base station sends the group DCI for carrying A/N information within the timer2 duration to this group of UE, in the bitmap of A/N Interior UE1/2/3 obtains the HARQ 2 that base station is sent in corresponding 3 bit positions respectively and feeds back.
There may be other UE to be transmitted in the scene in resource identical with UE1/2/3.For example, base station can be UE4 Different group-RNTI is configured with UE1, configures identical one section of continuous running time-frequency resource, UE4 is in the continuous running time-frequency resource The resource of selection is identical with UE1, can be different from UE1 by group-RNTI to the feedback of UE4 at this time.For example, base station can be UE5 Identical group-RNTI is configured with UE1, configures identical one section of continuous running time-frequency resource, UE5 is in the continuous running time-frequency resource The resource of selection is identical with UE1, if DMRS UE5 and UE1 for example different using different code words or different reference signals at this time Sequence or different DMRS running time-frequency resource positions or different MA signature, base station can distinguish the transmission of UE5 and UE1, and And base station can be by directly or indirectly carrying corresponding code word/reference signal/MA to the feedback of UE5 in DCI Signature and be different from the feedback to UE1.
Figure 17 is please referred to, in the typical scenes such as (semi-static) scheduling of SPS, base station is periodically by one section of continuous resource point One UE of dispensing carries out UL transmission for it.In one specific example, base station UE1, UE2, UE3 carry out SPS scheduling, specifically such as The following figure.The SPS cycle initial position of UE1/2/3 and/or transmission initial position in each SPS period are unjustified in figure, because This only need to carry out respectively it or one goes forward side by side without fixed feedback time point, base station according to the instant reception state to UE1/2/3 Row A/N feedback.
As shown in figure 17, UE1/2/3 starts the timer of A/N feedback when terminating the SPS transmission in a cycle Timer-UE1/2/3, until restarting SPS transmission in the next period.Base station sends to UE1, UE2, UE3 in time point t1 and carries A/ The group DCI of N information, UE1/2/3 obtains what base station was sent in corresponding 3 bit positions respectively in the bitmap of A/N SPS feedback.SPS feedback is considered as the feedback content to the status transmission in the last SPS period.
There may be other UE to be transmitted in the scene in resource identical with UE1/2/3.Similarly, can pass through The codes point such as DMRS mode or group-RNTI are distinguished.
Figure 18 is please referred to, the embodiment of the present invention includes: for the received user equipment of scheduling information
Downlink Control Information module is obtained, for obtaining Downlink Control Information DCI;
Determine scheduling information module, for the transmission configuration resource according to used in Physical Uplink Shared Channel PUSCH with The mapping relations of scheduling information in DCI determine the scheduling information for corresponding to the PUSCH in the DCI.
It obtains Downlink Control Information module, determine that the course of work of scheduling information module corresponds respectively to the embodiment of the present invention The step 101 of scheduling information method of reseptance, 102 are not repeating herein.
In conjunction with can be seen that compared with prior art to the detailed description of the embodiment of the present invention above, the embodiment of the present invention At least there is technical effect beneficial below:
First, by UE is transmitted the mapping relations of scheduling information in transmission configuration resource and DCI used in PUSCH come It determines the scheduling information in DCI, base station is allowed only to send a DCI, realize in PUSCH transmission configuration resource and DCI Scheduling information reduces scheduling overhead, reduces resource waste, be obviously improved there are the scheduling of all UE of mapping relations The efficiency that communication system is scheduled terminal.
Second, base station is simultaneously scheduled UE using two class DCI, i.e. the tune to a UE is carried in a DCI message It spends in DCI and DCI message of information and carries the DCI of the scheduling information of multiple UE, therefore the technology of the embodiment of the present invention Scheme has preferable flexibility and compatibility.
UE is transmitted the pass used in PUSCH between running time-frequency resource position and specific running time-frequency resource regional scope by third System is mapped into DCI the scheduling information determined in DCI, and is directly determined using the running time-frequency resource position of acquired DCI For determining the running time-frequency resource region of scheduling information, reduces the extra signaling overheads for transmitting the running time-frequency resource region, mention High efficiency of transmission.
4th, a division can be used in the dispatching zone that will be mapped into DCI after the specific running time-frequency resource region division Unit corresponds to multiple UE, and a UE can also be made to correspond to multiple division units, has preferable flexibility and expansibility.
5th, obtaining after scheduling information can execute in preset time window or on time point corresponding according to ACK/NACK Operation has good flexibility.
6th, it can be applied to the typical scenes such as grant-free, SPS, base station is to multiple UE configuration one under these scenes A identical resource pool, UE select transfer resource in a manner of competing, and the dispatching method of the embodiment of the present invention is under these scenes It is more effective reliable.
Those skilled in the art of the present technique are appreciated that the embodiment of the present invention includes be related to for executing in the embodiment of the present invention One or more equipment in the operation.These equipment can specially design and manufacture, Huo Zheye for required purpose It may include the known device in general purpose computer.These equipment have the computer program being stored in it, these computers Activates or reconstruct to procedure selection.Such computer program can be stored in equipment (for example, computer) readable medium In or be stored in and be suitable for storage and e-command and be coupled in any kind of medium of bus respectively, it is described computer-readable Medium includes but is not limited to any kind of disk (including floppy disk, hard disk, CD, CD-ROM and magneto-optic disk), ROM (Read- Only Memory, read-only memory), RAM (Random AcceSS Memory, immediately memory), EPROM (EraSable Programmable Read-Only Memory, Erarable Programmable Read only Memory), EEPROM (Electrically EraSable Programmable Read-Only Memory, Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic card Or light card.It is, readable medium includes the form storage or transmission information by equipment (for example, computer) can read Any medium.
Those skilled in the art of the present technique be appreciated that can be realized with computer program instructions these structure charts and/or The combination of each frame and these structure charts and/or the frame in block diagram and/or flow graph in block diagram and/or flow graph.This technology neck Field technique personnel be appreciated that these computer program instructions can be supplied to general purpose computer, special purpose computer or other The processor of programmable data processing method is realized, to pass through the processing of computer or other programmable data processing methods The scheme specified in frame or multiple frames of the device to execute structure chart and/or block diagram and/or flow graph disclosed by the embodiments of the present invention.
Those skilled in the art of the present technique are appreciated that the various operations crossed by discussion in the embodiment of the present invention, method, stream Step, measure, scheme in journey can be replaced, changed, combined or be deleted.Further, have in the embodiment of the present invention The various operations crossed by discussion, method, other steps, measures, and schemes in process can also be replaced, change, reset, point Solution, combination are deleted.Further, in the prior art to have and various operations, method, stream disclosed in the embodiment of the present invention Step, measure, scheme in journey may also be alternated, changed, rearranged, decomposed, combined or deleted.
The above is only some embodiments of the embodiment of the present invention, it is noted that for the common of the art For technical staff, without departing from the principles of the embodiments of the present invention, several improvements and modifications can also be made, these change Into the protection scope that also should be regarded as the embodiment of the present invention with retouching.

Claims (11)

1. a kind of scheduling information method of reseptance, which is characterized in that the described method comprises the following steps:
Obtain Downlink Control Information DCI;
It is closed according to the mapping of scheduling information in transmission configuration resource used in Physical Uplink Shared Channel PUSCH and the DCI System determines the scheduling information for corresponding to the PUSCH in the DCI.
2. scheduling information method of reseptance as described in claim 1, which is characterized in that the acquisition DCI, comprising: acquisition includes The DCI of one or more user equipment (UE) scheduling informations.
3. scheduling information method of reseptance as described in claim 1, which is characterized in that the acquisition DCI, comprising: with base station point The radio network temporary identifier RNTI matched obtains DCI.
4. scheduling information method of reseptance as described in claim 1, which is characterized in that the transmission configuration resource includes time-frequency money At least one of source, code source and demodulated reference signal DMRS resource.
5. scheduling information method of reseptance as described in claim 1, which is characterized in that described according to Physical Uplink Shared Channel The mapping relations of transmission configuration resource used in PUSCH and scheduling information in DCI are determined to correspond in the DCI and are somebody's turn to do The scheduling information of PUSCH, comprising:
Relative position of the running time-frequency resource position according to used in PUSCH in the first running time-frequency resource region, in the DCI really Surely correspond to the scheduling information of the PUSCH.
6. scheduling information method of reseptance as claimed in claim 5, which is characterized in that first running time-frequency resource region is by being obtained The running time-frequency resource position of the DCI taken or the content of acquired DCI or base station configuration and/or protocol conventions determine.
7. scheduling information method of reseptance as claimed in claim 5, which is characterized in that the time-frequency according to used in PUSCH Relative position of the resource location in the first running time-frequency resource region determines that the scheduling corresponding to the PUSCH is believed in the DCI Breath, comprising:
It is several minimum scheduling units by the running time-frequency resource region division;
Determine scheduling information in the corresponding minimum scheduling unit in running time-frequency resource position and the DCI used in transmission PUSCH Mapping relations;
The scheduling information for corresponding to the PUSCH is determined in the DCI according to the mapping relations.
8. scheduling information method of reseptance as claimed in claim 7, which is characterized in that used in the determining transmission PUSCH The mapping relations of running time-frequency resource position corresponding minimum scheduling unit and scheduling information in the DCI, comprising: to each minimum scheduling Unit numbers in order, and determines number and the institute of the corresponding minimum scheduling unit in running time-frequency resource position used in transmission PUSCH State the mapping relations of scheduling information in DCI.
9. scheduling information method of reseptance as claimed in claim 7, which is characterized in that it is described according to the mapping relations described The scheduling information for corresponding to the PUSCH is determined in DCI, comprising: determine the dispatching zone in DCI according to the mapping relations, obtain Scheduling information in the dispatching zone.
10. scheduling information method of reseptance as described in claim 1, which is characterized in that described according to Physical Uplink Shared Channel The mapping relations of transmission configuration resource used in PUSCH and scheduling information in DCI are determined to correspond in the DCI and are somebody's turn to do After the scheduling information of PUSCH, further includes: if identified scheduling information is ACK, execute at least one in following operation:
Stop ongoing PUSCH transmission corresponding with the ACK information;
Empty uplink authorization UL grant corresponding with the PUSCH;
Discharge the remainder of the transfer resource of the PUSCH;
Empty the caching of hybrid automatic repeat-request HARQ process corresponding with the PUSCH;
Stop to monitor physical downlink control channel PDCCH.
11. a kind of user equipment characterized by comprising
Downlink Control Information module is obtained, for obtaining Downlink Control Information DCI;
Scheduling information module is determined, in the transmission configuration resource according to used in Physical Uplink Shared Channel PUSCH and DCI The mapping relations of scheduling information determine the scheduling information for corresponding to the PUSCH in the DCI.
CN201810040728.5A 2017-08-02 2018-01-16 The received method and apparatus of scheduling information Pending CN109842869A (en)

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PCT/KR2018/008766 WO2019027262A1 (en) 2017-08-02 2018-08-01 Method, equipment for receiving scheduling information, terminal, base station and method for transmitting information.
US16/635,983 US11317431B2 (en) 2017-08-02 2018-08-01 Method, equipment for receiving scheduling information, terminal, base station and method for transmitting information
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