CN105519025A - CQI report method, trigger method, device and wireless communication system - Google Patents
CQI report method, trigger method, device and wireless communication system Download PDFInfo
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- CN105519025A CN105519025A CN201480036543.7A CN201480036543A CN105519025A CN 105519025 A CN105519025 A CN 105519025A CN 201480036543 A CN201480036543 A CN 201480036543A CN 105519025 A CN105519025 A CN 105519025A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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Abstract
The embodiment of the invention provides a CQI report method, a trigger method, a device and a wireless communication system, and relates to the technical field of communication. The invention is used for raising accuracy of MCS selection and further reducing influences for a downlink throughput. The method comprises the steps of obtaining a report period of periodical CQI reporting of a CQI report device and a relation between the report period and a first preset time segment; when the report period is not shorter than the first preset time segment, whether downlink data exists in the CQI report device in a second preset time segment exists is tested; when the downlink data exists in the CQI report device, the CQI report trigger device sends trigger signals for reporting CQI to the CQI report trigger device. The embodiment of the invention is applied to wireless communication.
Description
Technical field
The present invention relates to communication technical field, (English: ChannelQualityIndicatio is called for short: CQI) report method, triggering method, equipment and wireless communication system to particularly relate to the instruction of a kind of channel quality.
Background technology
CQI, as the instruction of down channel quality, (English: UserEquipment by subscriber equipment, be called for short: UE) report base station, the CQI that base station reports according to UE, (English: ModulationandCodingScheme is called for short: MCS), and the selection of MCS directly affects the size of downlink throughput capacity to select suitable modulation coding mode.
At present, the CQI of UE to down channel has reported and has reported periodic report and aperiodic two kinds of modes.In the mode of periodic report, UE can according to the cycle of base station configuration, and periodically report CQI, the CQI of periodic report can be called cycle CQI; In the mode reported aperiodic, base station can report CQI by triggering signaling triggering UE, and the CQI reported aperiodic can be called CQI aperiodic.
MCS when sending data to UE is determined according to the CQI that the last time receives in base station.In the scene of periodic report CQI, when the report cycle of CQI is longer, the interval time that adjacent twice CQI reports is longer, within the interval time that adjacent twice CQI reports, the channel status of down channel may have occurred larger change, so the MCS that base station is determined according to the CQI that the last time receives may be not suitable for current channel status, and then downlink throughput capacity can be affected.
Summary of the invention
Method, triggering method, equipment and wireless communication system that embodiments of the invention provide a kind of CQI to report, to improve the accuracy that MCS selects, and then reduce the impact on downlink throughput capacity.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, provides a kind of channel quality indicator (CQI) to report trigger equipment, comprising:
Acquiring unit, for obtaining the report cycle of CQI reporting equipment periodic report CQI;
Determining unit, the described report cycle for obtaining according to described acquiring unit determines the relation of described report cycle and the first preset time period;
Detecting unit, whether for when described determining unit determines that described report cycle is not less than described first preset time period, detecting described CQI reporting equipment in the second preset time period has downlink data;
Transmitting element, during for detecting when detecting unit that in described second preset time period described CQI reporting equipment has a downlink data, sends the triggering signaling reporting CQI to described CQI reporting equipment.
In conjunction with first aspect, in the implementation that the first is possible, described transmitting element periodically sends described triggering signaling.
In conjunction with the first possible implementation of first aspect, in the implementation that the second is possible, the cycle that described transmitting element periodically sends described triggering signaling is described first preset time period.
In conjunction with first aspect, or any one possible implementation of first aspect, in the implementation that the third is possible, described second preset time period is greater than described first preset time period.
In conjunction with first aspect, or any one possible implementation of first aspect, in the 4th kind of possible implementation, described second preset time period is the integral multiple of described first preset time period.
Second aspect, provides a kind of channel quality indicator (CQI) reporting equipment, comprising:
Receiving element, for receiving the triggering signaling reporting CQI that CQI reports trigger equipment to send, wherein, described triggering signaling by described CQI report trigger equipment the report cycle of CQI reporting equipment periodic report CQI be not less than the first preset time period and in the second preset time period, described CQI reporting equipment has a downlink data time send to described CQI reporting equipment;
Report unit, for the described triggering signaling received according to described receiving element, report trigger equipment to report CQI to described CQI.
In conjunction with second aspect, in the implementation that the first is possible, described in described receiving element periodic receipt, trigger signaling.
In conjunction with the first possible implementation of second aspect, in the implementation that the second is possible, the cycle of triggering signaling described in described receiving element periodic receipt is described first preset time period.
In conjunction with second aspect, or any one possible implementation of second aspect, in the implementation that the third is possible, described second preset time period is greater than described first preset time period.
In conjunction with second aspect, or any one possible implementation of second aspect, in the 4th kind of possible implementation, described second preset time period is the integral multiple of described first preset time period.
The third aspect, a kind of channel quality indicator (CQI) is provided to report trigger equipment, comprise: memory, processor, first interface circuit and bus, wherein said memory, processor and first interface circuit connect realization by described bus and intercom mutually, and described memory is for storing the data of described processor process;
Described processor for obtaining the report cycle of CQI reporting equipment periodic report CQI, and determines the relation of described report cycle and the first preset time period;
Whether when described processor determines that described report cycle is not less than described first preset time period, detecting described CQI reporting equipment in the second preset time period has downlink data;
Described first interface circuit is used for, when described processor to detect that in the second preset time period described CQI reporting equipment has a downlink data, reporting the triggering signaling of CQI to described CQI reporting equipment transmission.
In conjunction with the third aspect, in the implementation that the first is possible, described first interface circuit period property sends described triggering signaling.
In conjunction with the first possible implementation of the third aspect, in the implementation that the second is possible, the cycle that described first interface circuit period property sends described triggering signaling is described first preset time period.
In conjunction with the third aspect, or any one possible implementation of the third aspect, in the implementation that the third is possible, described second preset time period is greater than described first preset time period.
In conjunction with the third aspect, or any one possible implementation of the third aspect, in the 4th kind of possible implementation, described second preset time period is the integral multiple of described first preset time period.
Fourth aspect, a kind of channel quality indicator (CQI) reporting equipment is provided, comprise: memory, processor, first interface circuit, the second interface circuit and bus, wherein said memory, processor, first interface circuit and the second interface circuit connect realization by described bus and intercom mutually, and described memory is for storing the data of described processor process;
The triggering signaling reporting CQI that described first interface circuit reports trigger equipment to send for receiving CQI, wherein, described triggering signaling by described CQI report trigger equipment the report cycle of described CQI reporting equipment periodic report CQI be not less than the first preset time period and in the second preset time period, described CQI reporting equipment has a downlink data time send to described CQI reporting equipment;
Described second interface circuit is used for the described triggering signaling received according to described first interface circuit, reports trigger equipment to report CQI to described CQI.
In conjunction with fourth aspect, in the implementation that the first is possible, described first interface circuit period property receives described triggering signaling.
In conjunction with the first possible implementation of fourth aspect, in the implementation that the second is possible, the cycle that described first interface circuit period property receives described triggering signaling is described first preset time period.
In conjunction with fourth aspect, or any one possible implementation of fourth aspect, in the implementation that the third is possible, described second preset time period is greater than described first preset time period.
In conjunction with fourth aspect, or any one possible implementation of fourth aspect, in the 4th kind of possible implementation, described second preset time period is the integral multiple of described first preset time period.
5th aspect, provides a kind of wireless communication system, and described wireless communication system comprises: CQI reports trigger equipment and CQI reporting equipment;
Described CQI reports trigger equipment to report trigger equipment for the CQI described in above-mentioned any one of first aspect;
Described CQI reporting equipment is the CQI reporting equipment described in above-mentioned any one of second aspect;
Or;
Described CQI reports trigger equipment to report trigger equipment for the CQI described in above-mentioned any one of the third aspect;
Described CQI reporting equipment is the CQI reporting equipment described in above-mentioned any one of fourth aspect.
6th aspect, provide a kind of channel quality indicator (CQI) to report triggering method, described method comprises:
Obtain the report cycle of CQI reporting equipment periodic report CQI;
Determine the relation of described report cycle and the first preset time period;
Whether when described report cycle is not less than described first preset time period, detecting described CQI reporting equipment in the second preset time period has downlink data;
When described CQI reporting equipment has downlink data, described CQI reports trigger equipment to send the triggering signaling reporting CQI to described CQI reporting equipment.
In conjunction with the 6th aspect, in the implementation that the first is possible, described CQI reports trigger equipment periodically to send described triggering signaling.
In conjunction with the first possible implementation of the 6th aspect, in the implementation that the second is possible, the cycle that described CQI reports trigger equipment periodically to send described triggering signaling is described first preset time period.
In conjunction with the 6th aspect, or any one possible implementation of the 6th aspect, in the implementation that the third is possible, described second preset time period is greater than described first preset time period.
In conjunction with the 6th aspect, or any one possible implementation of the 6th aspect, in the 4th kind of possible implementation, described second preset time period is the integral multiple of described first preset time period.
7th aspect, provides a kind of channel quality indicator (CQI) report method, comprising:
CQI reporting equipment receives the triggering signaling reporting CQI that CQI reports trigger equipment to send, wherein, described triggering signaling by described CQI report trigger equipment the report cycle of CQI reporting equipment periodic report CQI be not less than the first preset time period and in the second preset time period, described CQI reporting equipment has a downlink data time, send to described CQI reporting equipment;
Described CQI reporting equipment, according to described triggering signaling, reports trigger equipment to report CQI to described CQI.
In conjunction with the 7th aspect, in the implementation that the first is possible, described in described CQI reporting equipment periodic receipt, trigger signaling.
In conjunction with the first possible implementation of the 7th aspect, in the implementation that the second is possible, the cycle of triggering signaling described in described CQI reporting equipment periodic receipt is described first preset time period.
In conjunction with the 7th aspect, or any one possible implementation of the 7th aspect, in the implementation that the third is possible, described second preset time period is greater than described first preset time period.
In conjunction with the 7th aspect, or any one possible implementation of the 7th aspect, in the 4th kind of possible implementation, described second preset time period is the integral multiple of described first preset time period.
Embodiments of the invention provide CQI report method, triggering method, equipment and wireless communication system, triggering CQI gives the correct time, combine and determine the described report cycle of CQI reporting equipment periodic report CQI and the relation of the first preset time period, and whether detection described CQI reporting equipment in the second preset time period has downlink data, namely when reporting CQI aperiodic, combine the scene and data transmission service state that trigger and report aperiodic, so the embodiment of the present invention can, obtain the CQI closer to current channel condition, and then the accuracy of MCS selection can be improved, and then the impact that can reduce downlink throughput capacity.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
A kind of wireless communication system schematic diagram that Fig. 1 provides for the embodiment of the present invention;
A kind of CQI that Fig. 2 provides for the embodiment of the present invention reports trigger equipment schematic diagram;
A kind of CQI reporting equipment schematic diagram that Fig. 3 provides for the embodiment of the present invention;
The another kind of CQI that Fig. 4 provides for the embodiment of the present invention reports trigger equipment schematic diagram;
The another kind of CQI reporting equipment schematic diagram that Fig. 5 provides for the embodiment of the present invention;
A kind of CQI that Fig. 6 provides for the embodiment of the present invention reports triggering method flow chart of steps;
A kind of CQI report method flow chart of steps that Fig. 7 provides for the embodiment of the present invention;
The another kind of CQI that Fig. 8 provides for the embodiment of the present invention reports, triggering method flow chart of steps.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
CQI reporting equipment in the embodiment of the present invention is generally UE, UE can be wireless terminal also can be catv terminal, wireless terminal can be point to the equipment that user provides voice and/or data connectivity, has the portable equipment of wireless connecting function or is connected to other treatment facility of radio modem.Wireless terminal can be (English: RadioAccessNetwork through wireless access network, be called for short: RAN) communicate with one or more core net, wireless terminal can be mobile terminal, as mobile phone (or being called " honeycomb " phone) and the computer with mobile terminal, such as, can be portable, pocket, hand-hold type, built-in computer or vehicle-mounted mobile device, they and wireless access network exchange language and/or data.Such as, Personal Communications Services is (English: PersonalCommunicationService, be called for short: PCS) phone, cordless telephone, Session initiation Protocol (English: SessionInitiationProtocol, be called for short: SIP) phone, wireless local loop (English: WirelessLocalLoop, be called for short: WLL) stand, personal digital assistant (English: PersonalDigitalAssistant, PDA) abbreviation: the equipment such as.Wireless terminal also can be called system, subscri er unit is (English: SubscriberUnit), subscriber station is (English: SubscriberStation), mobile radio station is (English: MobileStation, be called for short: MS), travelling carriage is (English: Mobile), distant station is (English: RemoteStation), access point is (English: AccessPoint, be called for short AP), remote terminal is (English: RemoteTerminal), access terminal (English: AccessTerminal), user terminal is (English: UserTerminal), user agent is (English: UserAgent).
CQI in the embodiment of the present invention reports trigger equipment to be generally network equipment, network equipment includes but not limited to: the base stations such as macro base station, micro-base station, femto base station, little base station, relay station, Remote Radio Unit, such as, can to refer in Access Network the equipment by one or more sector and wireless terminal communications on aloft interface.The agreement that network equipment can be used for interconnecting between the air frame received and network is (English: InternetProtocol, be called for short: IP) grouping is changed mutually, as the router between wireless terminal and the remainder of Access Network, wherein the remainder of Access Network can comprise IP protocol network, goes back the attribute management of tunable to air interface.Such as, network equipment can be that GSM is (English: GlobalSystemforMobileCommunication, global system for mobile communications) or CDMA (English: CodeDivisionMultipleAccess, code division multiple access) in base station (English: BaseTransceiverStation, be called for short: BTS), also can be WCDMA (WidebandCDMA, Wideband Code Division Multiple Access (WCDMA)) in base station (be called for short: NodeB), can also be the evolved base station in LTE, not limit in the embodiment of the present invention.
It should be noted that, in embodiments of the present invention, " up " refers to that for network equipment be the data transfer direction of data receiver, i.e. uplink receiving; " descending " refers to that for network equipment be the data transfer direction that data send, i.e. descending transmission; Other does not have specified otherwise to point out all to take this as the standard, certainly based on this other distortion or substitute all should belong to protection scope of the present invention.
With reference to shown in Fig. 1, the wireless communication system that embodiments of the invention are applied comprises CQI and reports trigger equipment (for eNB in Fig. 1) and CQI to report trigger equipment (for UE in Fig. 1), wherein, radio communication can be carried out between eNB and UE, and eNB is for determining MCS when sending data to UE.
Usually, eNB is the MCS that the CQI received according to the last time determines when sending data to UE, if eNB only determines MCS when sending data to UE according to cycle CQI.Under the scene that cycle CQI report cycle is longer, the interval time that adjacent twice cycle CQI reports is longer, within the interval time that adjacent twice cycle CQI reports, the channel status of down channel may have occurred larger change, so the MCS that eNB determines according to the cycle CQI that the last time receives may be not suitable for current channel status, and then the reception of UE to downlink data can be affected.In order to the reception making UE better can carry out downlink data, the application proposes the scheme that a kind of aperiodic reports CQI, make CQI report trigger equipment can report CQI aperiodic by triggering signaling triggering UE, thus obtain the CQI closer to current channel condition, improve downlink throughput capacity.Trigger condition is considered as follows:
The first, reporting of CQI needs to consume ascending resource, and the frequency that CQI reports is higher, and the ascending resource of consumption is more, but the downlink space interface gain obtained is larger.The application consumes in downlink space interface gain and ascending resource and obtains balance, the thresholding that one-period reports the report cycle of CQI is set, when the actual report cycle of UE is greater than this thresholding, triggering UE carries out CQI and reports aperiodic, to increase the frequency that CQI reports, obtain larger downlink space interface gain.
The second, there is no the scene of downlink data transmission between eNB and UE under, if eNB high-frequency triggering CQI aperiodic reports, then can increase the signaling consumption between eNB and UE, cause the wasting of resources; And have the scene of downlink data transmission between eNB and UE under, if eNB low-frequency triggering CQI aperiodic reports, then eNB still may be not suitable for current channel status according to the MCS that CQI determines, affect the reception of UE to downlink data.Therefore, a time period can be set, screen UE by this time period, and then only allow in this time period and have the UE of downlink data to report CQI, reduce ascending resource waste.Therefore, be provided with the triggering thresholding that two report CQI aperiodic in above-mentioned wireless communication system, first time period and the second time period, be respectively used to judge whether the frequency of periodic report CQI reaches thresholding, report CQI aperiodic to trigger, and the UE that screening has downlink data reports CQI aperiodic.Such as, first the report cycle of periodic report CQI and the relation of the first preset time period is judged, when report cycle is not less than the first preset time period, detect the UE whether eNB has downlink data in the second preset time period, and the UE with downlink data is reported the triggered target of CQI as aperiodic, send to this or these UE the triggering signaling reporting CQI aperiodic.Aperiodic CQI gives the correct time in triggering, combine the scene and data transmission service state that trigger and aperiodic gives the correct time, so when the embodiment of the present invention can have a downlink data transmission between eNB and UE, make eNB obtain CQI closer to current channel condition; When there is no downlink data transmission between eNB and UE, do not carry out the triggering that aperiodic, CQI reported, thus reduce the wasting of resources, eNB acquisition namely can be made while reducing the wasting of resources closer to the CQI of current channel condition.Visible, utilize above scheme, the balance of the wasting of resources and descending gain can be obtained.
It should be noted that, first time period and arranging of the second time period can be carried out according to the demand of the actual conditions of system or operator, and the application is not limited with its value.
With reference to the wireless communication system shown in Fig. 1, embodiments of the invention provide a kind of CQI to report trigger equipment; Report trigger equipment to be that example is described for eNB, CQI reporting equipment is UE with CQI below, concrete, with reference to shown in Fig. 2, this equipment 200 comprises:
Acquiring unit 201, for obtaining the report cycle of UE periodic report CQI;
Wherein, the report cycle of above-mentioned acquiring unit acquisition UE periodic report CQI can pass through the following two kinds mode specific implementation:
Mode one: when the report cycle of periodic report CQI is eNB configuration, described acquiring unit directly can obtain this report cycle of self configuration; Such as: this eNB is the controlled entity that macro base station or this eNB comprise the report cycle reporting CQI for configuration cycle;
Mode two: when the report cycle of periodic report CQI is other Equipments Setting, described acquiring unit can by detecting the moment of the CQI of double reception UE periodic report, and the moment of the CQI of double reception UE periodic report is done difference, obtain this report cycle, such as: this eNB is relay base station, or be positioned at other apparatus for network node for the controlled entity of the report cycle of configuration cycle CQI.
Determining unit 202, the described report cycle for obtaining according to described acquiring unit determines the relation of described report cycle and the first preset time period;
In addition, above-mentioned first preset time period, for representing special time length, does not limit starting point and the terminal of the first preset time period herein.When report cycle is not less than the first preset time period, represent that current report cycle is longer.
Detecting unit 203, whether for when described determining unit determines that described report cycle is not less than described first preset time period, detecting described UE in the second preset time period has downlink data.
Exemplary, detecting unit can detect eNB in the second preset time period and whether send data to UE, or whether the spatial cache of the down link of eNB comprises the downlink data of UE in the second preset time period, whether there is downlink data to detect UE in the second preset time period.
Wherein, the second preset time period can be configured to different length according to different scene and different demands, when sending data to UE in the second preset time period, represents that current eNB sends data to UE more frequent.
Transmitting element 204, during for detecting when detecting unit that in described second preset time period described UE has a downlink data, sends the triggering signaling reporting CQI to described UE.
Embodiments of the invention provide CQI to report trigger equipment, triggering CQI gives the correct time, combine and determine the described report cycle of CQI reporting equipment periodic report CQI and the relation of the first preset time period, and whether detection described CQI reporting equipment in the second preset time period has downlink data, namely when reporting CQI aperiodic, combine the scene and data transmission service state that trigger and report aperiodic, so the embodiment of the present invention can, obtain the CQI closer to current channel condition, and then the accuracy of MCS selection can be improved, and then the impact that can reduce downlink throughput capacity.
Optionally, described transmitting element 204 periodically sends described triggering signaling.
Further alternative, the cycle that described transmitting element 204 periodically sends described triggering signaling is described first preset time period.Exemplary, the cycle that transmitting element 204 sends described triggering signaling can be 5 milliseconds, and namely the first preset time period can be 5 milliseconds.
Optionally, described second preset time period is greater than described first preset time period.
Optionally, described second preset time period is the integral multiple of described first preset time period.
Exemplary, when described first preset time period is 5 milliseconds, then described second preset time period can be the integral multiple of 5 milliseconds, 10 milliseconds etc. 5 milliseconds.
It should be noted that, if the acquiring unit pass-through mode one in above-described embodiment obtains described report cycle, then described acquiring unit, determining unit and detecting unit can report for CQI the processor set up separately in trigger equipment, or being integrated in CQI to report in trigger equipment in a certain processor, or be stored in CQI with the form of program code to report in the memory of trigger equipment, and report some processors of trigger equipment call and perform the function of above unit by CQI.Above-described processor can be that a central processing unit is (English: CentralProcessingUnit, be called for short: CPU), or specific integrated circuit is (English: ApplicationSpecificIntegratedCircuit, be called for short: ASIC), or be configured to the one or more integrated circuits implementing the embodiment of the present invention.If the acquiring unit pass-through mode two in above-described embodiment obtains described report cycle, then described acquiring unit can obtain report cycle by the CQI of the UE periodic report with the interface circuit reception of receiving function, and transmitting element can for possessing the interface circuit of sending function.Further, when CQI reports trigger equipment and CQI reporting equipment carries out radio communication, the CQI of the UE periodic report that acquiring unit can be received by receiver obtains report cycle, transmitting element can report the transmitter of trigger equipment for CQI, CQI can be reported the Receiver And Transmitter of trigger equipment to integrate in addition and form the transceiver that CQI reports trigger equipment.
With reference to the wireless communication system shown in Fig. 1, embodiments of the invention provide a kind of CQI reporting equipment, and report trigger equipment to be that example is described for eNB, CQI reporting equipment is UE with CQI below, concrete, with reference to shown in Fig. 3, this equipment comprises:
Receiving element 301, for receiving the triggering signaling reporting CQI that eNB sends, wherein, described triggering signaling by described eNB the report cycle of described UE periodic report CQI be not less than the first preset time period and in the second preset time period, described UE has a downlink data time, send to described UE;
Report unit 302, for the described triggering signaling received according to described receiving element, report CQI to described eNB.
Optionally, signaling is triggered described in described receiving element 301 periodic receipt.
Further, the cycle of triggering signaling described in described receiving element 301 periodic receipt is described first preset time period.
Optionally, described second preset time period is greater than described first preset time period.
Optionally, described second preset time period is the integral multiple of described first preset time period.
It should be noted that, receiving element can for having the interface circuit of receiving function in CQI reporting equipment, report unit can be the interface circuit in CQI reporting equipment with emission function, when CQI reports trigger equipment and CQI reporting equipment carries out radio communication, receiving element can report the receiver of trigger equipment for CQI, transmitting element can report the transmitter of trigger equipment for CQI, CQI can be reported the Receiver And Transmitter of trigger equipment to integrate in addition and form the transceiver that CQI reports trigger equipment.
The CQI reporting equipment that embodiments of the invention provide, triggering CQI gives the correct time, combine and determine the described report cycle of CQI reporting equipment periodic report CQI and the relation of the first preset time period, and whether detection described CQI reporting equipment in the second preset time period has downlink data, namely when reporting CQI aperiodic, combine the scene and data transmission service state that trigger and report aperiodic, so the embodiment of the present invention can, obtain the CQI followed close to current channel condition, and then the accuracy of MCS selection can be improved, and then the impact that can reduce downlink throughput capacity.
Yet another embodiment of the invention provides a kind of CQI to report trigger equipment, concrete, with reference to shown in Fig. 4, this equipment 400 comprises: memory 401, processor 402, first interface circuit 403 and bus 404, wherein said memory 401, processor 402 and interface circuit 403 connect realization by described bus 404 and intercom mutually, and described memory 401 is for storing the data of described processor 402 process;
This bus 404 can be that industry standard architecture is (English: IndustryStandardArchitecture, referred to as ISA) bus, peripheral component interconnect be (English: PeripheralComponent, referred to as PCI) bus or extended industry-standard architecture be (English: ExtendedIndustryStandardArchitecture, referred to as EISA) bus etc., do not limit herein.This bus 404 can be divided into address bus, data/address bus, control bus etc.For ease of representing, only representing with a thick line in Fig. 4, but not representing the bus only having a bus or a type.
Memory 401 is for storing data or executable program code, and wherein program code comprises computer-managed instruction, is specifically as follows: operating system, application program etc.Memory 401 may comprise high-speed RAM memory, still may comprise nonvolatile memory (English: non-volatilememory), such as at least one magnetic disc store.
Processor 402 may be that a central processing unit is (English: CentralProcessingUnit, referred to as CPU), or specific integrated circuit is (English: ApplicationSpecificIntegratedCircuit, referred to as ASIC), or be configured to the one or more integrated circuits implementing the embodiment of the present invention.Such as: one or more microprocessor (English: digitalsingnalprocessor, to be called for short DSP), or, one or more field programmable gate array (English: FieldProgrammableGateArray, be called for short: FPGA)
Processor 402 is for realizing the technical scheme in above-described embodiment by the program code in execute store 401.Trigger equipment is reported to be that example is described for eNB, CQI reporting equipment is UE with CQI below.
Concrete, described processor 402 for obtaining the report cycle of UE periodic report CQI, and determines the relation of described report cycle and the first preset time period;
Wherein, the report cycle of above-mentioned processor acquisition UE periodic report CQI can pass through the following two kinds mode specific implementation:
Mode one: when the report cycle of periodic report CQI is eNB configuration, described processor directly can obtain this report cycle of self configuration; Such as: this eNB is the controlled entity that macro base station or this eNB comprise the report cycle for configuration cycle CQI;
Mode two: when the report cycle of periodic report CQI is other Equipments Setting, described processor can by detecting the double moment of passing through the CQI of the second interface circuit reception UE periodic report, and the moment of the CQI of double reception UE periodic report is done difference, obtain this report cycle, such as: this eNB is relay base station, or be positioned at other apparatus for network node for the controlled entity of the report cycle of configuration cycle CQI.
Whether when described processor 402 determines that described report cycle is not less than described first preset time period, detecting described UE in the second preset time period has downlink data;
When described first interface circuit 403 has a downlink data for described UE to be detected in the second preset time period when described processor 402, send the triggering signaling reporting CQI to described UE.
Optionally, described first interface circuit 403 periodically sends described triggering signaling.
Further, described first interface circuit 403 periodically sends the cycle of described triggering signaling is described first preset time period.
Optionally, described second preset time period is greater than described first preset time period.
Optionally, described second preset time period is the integral multiple of described first preset time period.
Further, when CQI reports trigger equipment and CQI reporting equipment carries out radio communication, the CQI of the UE periodic report that second mouthful of circuit can be received by receiver obtains report cycle, first interface circuit can report the transmitter of trigger equipment for CQI, CQI can be reported the Receiver And Transmitter of trigger equipment to integrate in addition and form the transceiver that CQI reports trigger equipment.
Embodiments of the invention provide CQI to report trigger equipment, triggering CQI gives the correct time, combine and determine the described report cycle of CQI reporting equipment periodic report CQI and the relation of the first preset time period, and whether detection described CQI reporting equipment in the second preset time period has downlink data, namely when reporting CQI aperiodic, combine the scene and data transmission service state that trigger and report aperiodic, so the embodiment of the present invention can, obtain the CQI closer to current channel condition, and then the accuracy of MCS selection can be improved, and then the impact that can reduce downlink throughput capacity.
Yet another embodiment of the invention provides a kind of CQI reporting equipment, concrete, with reference to shown in Fig. 5, this equipment 500 comprises: memory 501, processor 502, first interface circuit 503, second interface circuit 504 and bus 505, wherein said memory 501, processor 502, first interface circuit 503 and the second interface circuit 504 connect realization by described bus 505 and intercom mutually, and described memory 501 is for storing the data of described processor 502 process;
This bus 504 can be that industry standard architecture is (English: IndustryStandardArchitecture, referred to as ISA) bus, peripheral component interconnect be (English: PeripheralComponent, referred to as PCI) bus or extended industry-standard architecture be (English: ExtendedIndustryStandardArchitecture, referred to as EISA) bus etc., do not limit herein.This bus 504 can be divided into address bus, data/address bus, control bus etc.For ease of representing, only representing with a thick line in Fig. 5, but not representing the bus only having a bus or a type.
Memory 501 is for storing data or executable program code, and wherein program code comprises computer-managed instruction, is specifically as follows: operating system, application program etc.Memory 401 may comprise high-speed RAM memory, still may comprise nonvolatile memory (English: non-volatilememory), such as at least one magnetic disc store.
Processor 502 may be that a central processing unit is (English: CentralProcessingUnit, referred to as CPU), or specific integrated circuit is (English: ApplicationSpecificIntegratedCircuit, referred to as ASIC), or be configured to the one or more integrated circuits implementing the embodiment of the present invention.Such as: one or more microprocessor (English: digitalsingnalprocessor, to be called for short DSP), or, one or more field programmable gate array (English: FieldProgrammableGateArray, be called for short: FPGA)
Processor 402 is for realizing the technical scheme in above-described embodiment by the program code in execute store 501.Trigger equipment is reported to be that example is described for eNB, CQI reporting equipment is UE with CQI below.
Concrete, the triggering signaling reporting CQI that described first interface circuit 503 sends for receiving eNB, wherein, described triggering signaling is not less than the first preset time period and described UE has during downlink data and sends to described UE in the second preset time period by described eNB at the report cycle of described UE periodic report CQI;
Described second interface circuit 504, for the described triggering signaling received according to described first interface circuit, reports CQI to described eNB.
Optionally, signaling is triggered described in described first interface circuit 503 periodic receipt.
Further, described first interface circuit 503 receives the cycle of described triggering signaling is described first preset time period.
Optionally, described second preset time period is greater than described first preset time period.
Optionally, described second preset time period is the integral multiple of described first preset time period.
Further, when CQI reports trigger equipment and CQI reporting equipment carries out radio communication, first interface circuit can be the receiver of CQI reporting equipment, second interface circuit can be the transmitter of CQI reporting equipment, CQI can be reported the Receiver And Transmitter of trigger equipment to integrate the transceiver forming CQI reporting equipment in addition.
The CQI reporting equipment that embodiments of the invention provide, when CQI reports triggering, combine and determine the described report cycle of CQI reporting equipment periodic report CQI and the relation of the first preset time period, and whether detection described CQI reporting equipment in the second preset time period has downlink data, namely when reporting CQI aperiodic, combine the scene and data transmission service state that trigger and report aperiodic, so the embodiment of the present invention can, obtain the CQI followed close to current channel condition, and then the accuracy of MCS selection can be improved, and then the impact that can reduce downlink throughput capacity.
Embodiments of the invention provide a kind of CQI triggering method reported, and in the method, with reference to shown in Fig. 6, CQI reports trigger equipment for performing following steps:
S601, CQI report trigger equipment to obtain the report cycle of CQI reporting equipment periodic report CQI.
Wherein, in step s 201, described CQI reports trigger equipment that the following two kinds mode specifically can be adopted to obtain the report cycle of UE periodic report CQI.
Mode one: when the report cycle of periodic report CQI be CQI report trigger equipment to configure time, described CQI reports trigger equipment directly can obtain this report cycle of self configuration; Such as: this CQI reports trigger equipment to be that macro base station or this CQI report trigger equipment to comprise the controlled entity of the report cycle for configuration cycle CQI;
Mode two: when the report cycle of periodic report CQI is other Equipments Setting, described CQI reports trigger equipment can pass through the moment of the CQI detecting double reception CQI reporting equipment periodic report, and the moment of the CQI of double reception CQI reporting equipment periodic report is done difference, obtain this report cycle, such as: this CQI reports trigger equipment to be relay base station, or is positioned at other apparatus for network node for the controlled entity of the report cycle of configuration cycle CQI.
S602, described CQI report trigger equipment to determine the relation of described report cycle and the first preset time period.
After step S602, when CQI reports trigger equipment to judge that described report cycle is not less than the first preset time period, perform step S603; If CQI reports trigger equipment to judge, described report cycle is less than the first preset time period, then do not trigger CQI reporting equipment and report CQI aperiodic.
Whether S603, CQI report trigger equipment to detect described CQI reporting equipment in the second preset time period has downlink data.
Exemplary, CQI reports trigger equipment whether to send data to CQI reporting equipment to detect CQI reporting equipment in the second preset time period, or CQI reports the spatial cache of the down link of trigger equipment to comprise the downlink data of CQI reporting equipment in the second preset time period, whether there is downlink data to detect described UE in the second preset time period.
Wherein, in step S603, second preset time period can be configured to different length according to different scene and different demands, when sending data to CQI reporting equipment in the second preset time period, represents that current C QI reports trigger equipment to send data to CQI reporting equipment more frequent.
In step S603, if described CQI reports trigger equipment to send data to described CQI reporting equipment in described second preset time period, then perform step S204; Described CQI report trigger equipment to detect in the second preset time period, described CQI reporting equipment does not have downlink data, then CQI reporting equipment UE does not report CQI.
S604, CQI report trigger equipment to send the triggering signaling reporting CQI to described CQI reporting equipment.
Report trigger equipment corresponding to the CQI in above-described embodiment, CQI reporting equipment, for performing following steps, with reference to shown in Fig. 7, comprising:
S701, CQI reporting equipment receives the triggering signaling reporting CQI that CQI reports trigger equipment to send, wherein, described triggering signaling by described CQI report trigger equipment the report cycle of described UE periodic report CQI be not less than the first preset time period and in the second preset time period, described CQI reporting equipment has a downlink data time, send to described CQI reporting equipment;
S702, described CQI reporting equipment report trigger equipment to report CQI according to described triggering signaling to CQI.
Embodiments of the invention provide CQI to report, triggering method, triggering CQI gives the correct time, combine and determine the described report cycle of CQI reporting equipment periodic report CQI and the relation of the first preset time period, and whether detection described CQI reporting equipment in the second preset time period has downlink data, namely when reporting CQI aperiodic, combine the scene and data transmission service state that trigger and report aperiodic, so the embodiment of the present invention can, obtain the CQI followed close to current channel condition, and then the accuracy of MCS selection can be improved, and then the impact that can reduce downlink throughput capacity.
One embodiment of the invention provides a kind of CQI report method, triggering method, and with reference to shown in Fig. 8, wherein, the trigger equipment reported with CQI is that example is described for eNB, CQI reporting equipment is UE, and the method comprises the following steps:
S801, eNB obtain the report cycle of UE periodic report CQI.
In step S801, the concrete grammar of the report cycle of eNB acquisition UE periodic report CQI repeats no more here with reference to step S601.
S802, eNB determine the relation of described report cycle and the first preset time period.
Exemplary, the first preset time period can be set to 5 milliseconds.
When eNB determines that described report cycle is not less than the first preset time period, perform step S803.
Whether S803, eNB detect UE in the second preset time period has downlink data.
Same as above, the second preset time period can be configured to different length according to different scene and different demands; Exemplary, the length of the second preset time period is greater than described first preset time period.Further, the second preset time period can be the integral multiple of described first preset time period.
After step S803, when described UE has downlink data, perform step S804.
S804, eNB periodically send the triggering signaling reporting CQI to described UE.
Optionally, described eNB sends the cycle of described triggering signaling is described first preset time period.Corresponding to UE, the cycle that described UE receives described triggering signaling is described first preset time period.
The described CQI that S805, UE periodic receipt eNB sends reports triggering signaling, and reports CQI.
Exemplary, in step S805, report triggering signaling when UE often receives a CQI, then report triggering signaling to report a CQI to described eNB according to described CQI.
Exemplary, if the first preset time period is 5 milliseconds, is then equivalent to insert in twice periodic report CQI process report CQI an aperiodic, thus shortens the interval time reporting CQI for twice, improve the real-time reporting CQI.
Embodiments of the invention provide CQI report method, triggering method, when CQI reports triggering, combine and determine the described report cycle of CQI reporting equipment periodic report CQI and the relation of the first preset time period, and whether detection described CQI reporting equipment in the second preset time period has downlink data, namely when reporting CQI aperiodic, combine the scene and data transmission service state that trigger and report aperiodic, so the embodiment of the present invention can, obtain the CQI followed close to current channel condition, and then the accuracy of MCS selection can be improved, and then the impact that can reduce downlink throughput capacity.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (21)
1. channel quality indicator (CQI) reports a trigger equipment, it is characterized in that, comprising:
Acquiring unit, for obtaining the report cycle of CQI reporting equipment periodic report CQI;
Determining unit, the described report cycle for obtaining according to described acquiring unit determines the relation of described report cycle and the first preset time period;
Detecting unit, whether for when described determining unit determines that described report cycle is not less than described first preset time period, detecting described CQI reporting equipment in the second preset time period has downlink data;
Transmitting element, during for detecting when detecting unit that in described second preset time period described CQI reporting equipment has a downlink data, sends the triggering signaling reporting CQI to described CQI reporting equipment.
2. equipment according to claim 1, is characterized in that, described transmitting element periodically sends described triggering signaling.
3. equipment according to claim 2, is characterized in that, the cycle that described transmitting element periodically sends described triggering signaling is described first preset time period.
4. the equipment according to any one of claim 1-3, is characterized in that, described second preset time period is greater than described first preset time period.
5. the equipment according to any one of claim 1-4, is characterized in that, described second preset time period is the integral multiple of described first preset time period.
6. a channel quality indicator (CQI) reporting equipment, is characterized in that, comprising:
Receiving element, for receiving the triggering signaling reporting CQI that CQI reports trigger equipment to send, wherein, described triggering signaling by described CQI report trigger equipment the report cycle of CQI reporting equipment periodic report CQI be not less than the first preset time period and in the second preset time period, described CQI reporting equipment has a downlink data time send to described CQI reporting equipment;
Report unit, for the described triggering signaling received according to described receiving element, report trigger equipment to report CQI to described CQI.
7. equipment according to claim 6, is characterized in that, triggers signaling described in described receiving element periodic receipt.
8. equipment according to claim 7, is characterized in that, the cycle of triggering signaling described in described receiving element periodic receipt is described first preset time period.
9. the equipment according to any one of claim 6-8, is characterized in that, described second preset time period is greater than described first preset time period.
10. the equipment according to any one of claim 6-9, is characterized in that, described second preset time period is the integral multiple of described first preset time period.
11. 1 kinds of wireless communication systems, is characterized in that, described wireless communication system comprises: CQI reports trigger equipment and CQI reporting equipment;
Described CQI reports trigger equipment to report trigger equipment for the CQI described in any one of claim 1-5;
Described CQI reporting equipment is the CQI reporting equipment described in any one of claim 6-10.
The triggering method that 12. 1 kinds of channel quality indicator (CQI)s report, is characterized in that, described method comprises:
Obtain the report cycle of CQI reporting equipment periodic report CQI;
Determine the relation of described report cycle and the first preset time period;
Whether when described report cycle is not less than described first preset time period, detecting described CQI reporting equipment in the second preset time period has downlink data;
When described CQI reporting equipment has downlink data, described CQI reports trigger equipment to send the triggering signaling reporting CQI to described CQI reporting equipment.
13. methods according to claim 12, is characterized in that, described CQI reports trigger equipment periodically to send described triggering signaling.
14. methods according to claim 13, is characterized in that, the cycle that described CQI reports trigger equipment periodically to send described triggering signaling is described first preset time period.
15. methods according to any one of claim 12-14, it is characterized in that, described second preset time period is greater than described first preset time period.
16. methods according to any one of claim 12-15, it is characterized in that, described second preset time period is the integral multiple of described first preset time period.
The method that 17. 1 kinds of channel quality indicator (CQI)s report, is characterized in that, comprising:
CQI reporting equipment receives the triggering signaling reporting CQI that CQI reports trigger equipment to send, wherein, described triggering signaling by described CQI report trigger equipment the report cycle of CQI reporting equipment periodic report CQI be not less than the first preset time period and in the second preset time period, described CQI reporting equipment has a downlink data time, send to described CQI reporting equipment;
Described CQI reporting equipment reports trigger equipment to report CQI according to described triggering signaling to described CQI.
18. methods according to claim 17, is characterized in that, trigger signaling described in described CQI reporting equipment periodic receipt.
19. methods according to claim 18, is characterized in that, the cycle of triggering signaling described in described CQI reporting equipment periodic receipt is described first preset time period.
20. methods according to any one of claim 17-19, it is characterized in that, described second preset time period is greater than described first preset time period.
21. methods according to any one of claim 17-20, it is characterized in that, described second preset time period is the integral multiple of described first preset time period.
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| PCT/CN2014/094556 WO2016101110A1 (en) | 2014-12-22 | 2014-12-22 | Cqi reporting method, triggering method, device and wireless communication system |
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| WO2021134593A1 (en) * | 2019-12-31 | 2021-07-08 | 华为技术有限公司 | Wi-fi channel measurement method, apparatus, and system |
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| CN110049571B (en) * | 2018-01-16 | 2022-10-21 | 中国移动通信有限公司研究院 | Channel quality transmission method, terminal and base station |
| GB2617188A (en) * | 2022-03-31 | 2023-10-04 | Nec Corp | Communication system |
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| CN105519025B (en) | 2019-08-06 |
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