CN105636203A - Method and device for transmitting public paging message used for machine-type communication (MTC) user equipment (UE) - Google Patents
Method and device for transmitting public paging message used for machine-type communication (MTC) user equipment (UE) Download PDFInfo
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Abstract
The present invention provides a method used for transmitting a public paging message used for MTC UE. The method comprises the steps of configuring the public paging message used for one or more MTC UE in a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (EPDCCH), and broadcasting the PDCCH or the EPDCCH to the MTC UE.
Description
Technical field
The present invention generally relates to wireless communication field, more specifically, relates to a kind of method and apparatus for transmitting the public beep-page message for MTCUE.
Background technology
In third generation partner program (3GPP) Long Term Evolution (LTE) system, difference according to action scope, physical downlink control channel (PDCCH) carries the Downlink Control Information (DCI) for one or more subscriber equipmenies (UE), and carrying information is divided into common control information (public search space (CSS)) and dedicated control information (dedicated search space). Wherein CSS is mainly used in sending some instructions to UE, including each Radio Network Temporary Identifier (RNTI), such as system information RNTI (SI-RNTI), paging RNTI (P-RNTI) and Stochastic accessing RNTI (RA-RNTI), to notify, to UE, the information that they are desired, such as system information block (SIB) message, paging (Paging) message and accidental access response (RAR) message, if transmit in the resource distributed.
PDCCH and Physical Downlink Shared Channel (PDSCH) time division multiplex transmitting downlink data. UE carries out blind check in PDCCH control area, and whether search exists for the PDCCH of its transmission. Namely blind check uses the corresponding RNTI of this UE to be decoded PDCCH attempting. If decoding is correct, then receive the DCI for this UE, in PDSCH, then receive the message of correspondence, such as SIB message, beep-page message or RAR message.
Machine type communication (MTC) is a kind of important application in Future wireless systems, can be widely applied to the fields such as intelligent transportation, remotely charge, long-range monitoring. 3GPP has started coverage enhancement (CE) MTC job in Rel-12, target is to obtain the coverage enhancement of 15dB, and has agreed to set up another job to further enhance complexity/cost and the power consumption covering and reducing MTCUE in 3GPPRel-13. The bandwidth of restriction MTCUE is a kind of important way reducing cost, but this will further decrease covering. As a result, the target improved that covers of CEMTC brings up to 18dB in Rel-13.
In LTE, beep-page message is for supporting discontinuous transmission (DRX) and allowing UE dormancy extremely important to save energy. Each UE calculates the paging occasion of their own according to the international mobile subscriber identity (IMSI) of systematic parameter and its own. A paging cycle has 2-32 paging occasion. Beep-page message has two types: the specific beep-page message of UE and the public beep-page message informing all UE, such as system information block (SIB) amendment, earthquake and tsunami warning system (ETWS) instruction and extended access restriction (EAB) parameter modification. For public beep-page message, owing to it is destined to all UE, so it should send in all paging occasion. It is to say, same public beep-page message can send at most 32 times in a paging cycle.
Process and common UE for the specific beep-page message of MTCUE, UE and public beep-page message are essentially identical, and difference is only in that the beep-page message for MTCUE can repeatedly repeat to realize coverage goal. Repeatedly repeating is a kind of major technique that can realize big advantages in covering, and estimates to need to repeat for hundreds of times. Although repeating to provide so big income, but also should consider efficiency from the angle of whole system. Unnecessary repeating and the inefficient mechanism for CEMTC should be revised should be avoided. Considering to meet most stringent of coverage enhancement target, each paging occasion can be repeated hundreds of times, therefore, for CEMTCUE, is transmitted to take excess resource in each paging occasion, thus the transmission of public beep-page message is effective not. This problem should be solved to improve the efficiency of whole network.
Summary of the invention
For problem above, invention proposes a kind of scheme for transmitting the public beep-page message for MTCUE.
According to the first aspect of the invention, it is provided that a kind of method for transmitting the public beep-page message for MTCUE, including: in PDCCH or EPDCCH, configuration is for the public beep-page message of one or more MTCUE; And described PDCCH or EPDCCH is broadcast to described MTCUE.
According to the second aspect of the invention, it is provided that a kind of device for transmitting the public beep-page message for MTCUE, including: dispensing unit, for configuration in PDCCH or EPDCCH for the public beep-page message of one or more MTCUE; And transmitting element, for described PDCCH or EPDCCH is broadcast to described MTCUE.
According to the third aspect of the present invention, it is provided that a kind of method for transmitting the public beep-page message for MTCUE, including: pre-defined or be pre-configured with the time for broadcasting the public beep-page message for MTCUE and/or frequency resource; And broadcast described public beep-page message at each paging cycle periodically by PDSCH, wherein said public beep-page message need not be broadcasted in each paging occasion.
According to the fourth aspect of the present invention, provide a kind of device for transmitting the public beep-page message for MTCUE, including: pre-configured unit, for pre-defining or being pre-configured with the time for broadcasting the public beep-page message for MTCUE and/or frequency resource; And transmitting element, for broadcasting described public beep-page message at each paging cycle periodically by PDSCH, wherein said public beep-page message need not be broadcasted in each paging occasion.
The solution of the present invention can reduce the resource of the public beep-page message for transmitting MTCUE, thus improving efficiency of transmission.
Accompanying drawing explanation
After the description below with reference to the specific embodiment of the present invention given by drawings below, it is better understood with the present invention, and other purposes of the present invention, details, feature and advantage will become apparent from. In the accompanying drawings:
Fig. 1 illustrates the flow chart of the method for transmitting the public beep-page message being exclusively used in MTCUE according to one aspect of the invention;
Fig. 2 illustrates the flow chart of the method for transmitting the public beep-page message being exclusively used in MTCUE according to a further aspect of the present invention;
Fig. 3 illustrates the schematic diagram of the device for transmitting the public beep-page message being exclusively used in MTCUE according to one aspect of the invention; And
Fig. 4 illustrates the schematic diagram of the device for transmitting the public beep-page message being exclusively used in MTCUE according to a further aspect of the present invention.
Detailed description of the invention
It is more fully described the preferred implementation of the disclosure below with reference to accompanying drawings. Although accompanying drawing shows the preferred implementation of the disclosure, however, it is to be appreciated that may be realized in various forms the disclosure and should do not limited by embodiments set forth herein. On the contrary, it is provided that these embodiments are to make the disclosure more thorough and complete, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
A kind of aspect of the present invention is the public beep-page message being transmitted by PDCCH/EPDCCH rather than PDSCH and being exclusively used in MTCUE, the public beep-page message that MTCUE is included in by receiving and decode PDCCH/EPDCCH to identify, obtains public beep-page message without by reception PDSCH.
Fig. 1 illustrates the flow chart of the method 100 for transmitting the public beep-page message being exclusively used in MTCUE according to one aspect of the invention. Method 100 such as can be performed by the serving BS of MTCUE.
As shown in fig. 1, method 100 includes step 110, and wherein serving BS configures the public beep-page message for its one or more MTCUE serviced in PDCCH or EPDCCU.
Owing to public beep-page message is very little, therefore in PDCCH/EPDCCH, configuration is very many for the method for the public beep-page message of MTCUE. For example, it is possible to by defining new special DCI format or using the redundancy of current DCI format or combine use both options.
Making to transmit the key point worked based on the public beep-page message of PDCCH/EPDCCH is the MTCUE DCI that should correctly identify in the PDCCH/EPDCCH including public beep-page message. Shown below is how the public beep-page message that three kinds of detailed description of the invention comprise in the DCI representing in PDCCH/EPDCCH works.
Embodiment 1
In this embodiment, indicate PDCCH/EPDCCH comprises the public beep-page message for MTCUE by defining new special DCI format. It is to say, this special DCI format is different from the existing DCI format for common traditional UE (i.e. non-MTCUE).
In one implementation, this special DCI format can with the varying in size of existing DCI format, and its length depends on the species number of the MTC public beep-page message supported. Owing to the public beep-page message for MTCUE is generally smaller, therefore this special DCI format can define closely. Such as, as it has been described above, only exist three kinds of public beep-page messages in current system, i.e. SIB amendment, ETWS instruction and EAB amendment. In this case, if MTC also supports the public beep-page message of these three type, then the special DCI format for MTCUE minimum can only include 2 bits. It is to say, add minimum 2 bits in PDCCH/EPDCCH to be sufficient for the instruction public beep-page message of these three. But, it will be understood by those skilled in the art that and the invention is not limited in this. When the kind of the MTC public beep-page message supported is more or less, the size of this special DCI format can also be greater or lesser therewith.
For this embodiment, in MTCUE side, MTCUE utilizes this special DCI format that PDCCH/EPDCCH is carried out blind decoding in each paging occasion. If MTCUE detects this special DCI format, then it is known and comprises public beep-page message in this PDCCH/EPDCCH, thus correspondingly obtaining this public beep-page message.
Embodiment 2
Different from embodiment 1, in this embodiment, it not define new special DCI format for the public beep-page message of MTCUE, but reuse the existing DCI format for non-MTCUE, but use special this DCI of RNTI sequence pair to carry out scrambling, comprise the DCI of the public beep-page message for MTCUE to indicate this DCI to be.
In this embodiment, the DCI format comprising the public beep-page message for MTCUE has formed objects with the one in existing DCI format, for instance have formed objects with DCI format 1A or DCI format 1C, and itself and other DCI format are distinguished by RNTI. It is to say, this DCI comprising public beep-page message uses the RNTI sequence being exclusively used in MTCUE rather than P-RNTI to carry out scrambling.
Such as, this special RNTI sequence can be reserved RNTI sequence, in FFF4-FFFC, or can be M-RNTI (multimedia broadcast multicast services (MBMS) RNTI), i.e. FFFD, because estimating in Rel-13, MTCUE does not support MBMS.
For this embodiment, MTCUE is known a priori by this special RNTI for public beep-page message, for instance specifies according to standard or is known by wireless heterogeneous networks (RRC) signaling. Therefore, in each paging occasion, MTCUE uses this special RNTI that DCI is decoded, thus obtaining the DCI including the public beep-page message for MTCUE in PDCCH/EPDCCH, and correspondingly receives this public beep-page message.
Embodiment 3
Different from embodiment 1 or 2, in this embodiment, it not use special DCI format or special RNTI sequence to indicate the public beep-page message for MTCUE, but reuse the existing DCI format for non-MTCUE, and use this DCI of P-RNTI sequence pair to carry out scrambling as existing beep-page message, it is different in that, using indication field to indicate and comprise the public beep-page message for MTCUE in this DCI in DCI, this indication field such as includes in existing DCI format for insignificant information MTCUE.
Owing to, in Rel-13, MTCUE has the bandwidth restriction of general 6PRB, and therefore in existing DCI format, some PRB instruction is not required to. Therefore can define some Rel-13MTCUE PRB that will not use instruction and represent the public beep-page message for MTCUE.
In this embodiment, the DCI format comprising the public beep-page message for MTCUE has formed objects with the one in existing DCI format, such as there is with DCI format 1A or DCI format 1C formed objects, and use P-RNTI (i.e. FFFE) to carry out scrambling. In other words, public beep-page message sends with traditional DCI format (DCI format 1A or 1C), for the paging of MTCUE. But, in this DCI format, some fields comprise for insignificant instruction Rel-13MTC. This field is defined as indication field. To MTCUE, indication field is for notifying that this DCI is public beep-page message for sending other fields in public beep-page message and this DCI.
For this embodiment, receiving and when detecting DCI, it is decoded determining that whether this DCI is the schedule information of the beep-page message in PDSCH by MTCUE. If MTCUE is after have detected whole schedule information, discovery can not be deferred to this schedule information and is operated, because this schedule information has exceeded its ability, then MTCUE will be appreciated by this DCI format and contains the public beep-page message for MTCUE, thus correspondingly receiving this public beep-page message.
Such as, in one implements, it is possible to by tradition DCI format in Modulation and Coding Scheme (MCS) field definition be indication field. In Rel-13, MTCUE only supports QPSK, namely only supports MCS0-9. Therefore, it can use higher order of modulation to indicate this DCI to comprise the public beep-page message for MTCUE in MCS field.
When MTCUE reads MCS field and finds the order of modulation that MCS instruction is higher, for instance during 16QAM or 64QAM, it is known that this indicates in DCI and comprises the public beep-page message for MTCUE and read this public beep-page message from other fields.
It will be appreciated by those skilled in the art that, this is an example, other fields, as Physical Resource Block (PRB) allocation field or or even a bit will not using of Rel-13MTC can be defined as the instruction to the public beep-page message for MTCUE.
It follows that in step 120, after being configured with for the public beep-page message of MTCUE in PDCCH or EPDCCH as mentioned above, such PDCCH or EPDCCH is broadcast to these MTCUE by serving BS.
Another aspect of the present invention is periodically to broadcast the public beep-page message for MTCUE.
Fig. 2 illustrates the flow chart of the method 200 for transmitting the public beep-page message being exclusively used in MTCUE according to a further aspect of the present invention.
Method 200 includes step 210, wherein pre-defines or is pre-configured with the time for broadcasting the public beep-page message for MTCUE and/or frequency resource.
It follows that in step 220, serving BS periodically broadcasts this public beep-page message at each paging cycle in Energy Resources Service that is pre-defined or that be pre-configured with. Wherein, this public beep-page message is not broadcasted in each paging occasion. Therefore, compared with the scheme broadcasting public beep-page message in prior art in each paging time, system resource is saved.
Such as, in one implementation, public beep-page message can be broadcasted once at each paging cycle as required. Subframe (time) and/or the frequency resource of the public beep-page message of broadcast can pre-define, for instance pre-defined by standard, or can be pre-configured with, for instance configured by system information block (SIB), such as SIB1 or SIB2.
For this implementation, after being initially accessed, MTCUE can periodically receive public beep-page message according to pre-defined or that be pre-configured with time and frequency information.
Fig. 3 illustrates the schematic diagram of the device 300 for transmitting the public beep-page message being exclusively used in MTCUE according to one aspect of the invention. Device 300 such as can be implemented in the serving BS of MTCUE.
As shown in Figure 3, device 300 includes dispensing unit 310, for configuration in PDCCH or EPDCCH for the public beep-page message of one or more MTCUE; And transmitting element 320, for PDCCH or EPDCCH is broadcast to MTCUE.
In one implementation, dispensing unit 310 is for configuring special DCI format to comprise public beep-page message, and described special DCI format is different from the DCI format for non-MTCUE.
In one implementation, this special DCI format comprises 2 bits, is respectively used to the public beep-page message of SIB amendment, ETWS instruction and EAB amendment for instruction.
In one implementation, dispensing unit 310 for reusing the DCI format for non-MTCUE to comprise described public beep-page message, and use the public beep-page message for MTCUE special RNTI sequence pair its carry out scrambling.
In one implementation, dispensing unit 310 uses any one in FFF4-FFFC or uses M-RNTI that the DCI comprising described public beep-page message is carried out scrambling.
In one implementation, dispensing unit 310 is for reusing the DCI format for non-MTCUE to comprise described public beep-page message, and use the beep-page message for non-MTCUE RNTI sequence pair its carry out scrambling, but comprise in described DCI format for insignificant field MTCUE to indicate described DCI to comprise the public beep-page message for MTCUE.
Fig. 4 illustrates the schematic diagram of the device 400 for transmitting the public beep-page message being exclusively used in MTCUE according to a further aspect of the present invention. Device 400 such as can be implemented in the serving BS of MTCUE.
As shown in Figure 4, device 400 can include pre-configured unit 410, for pre-defining or being pre-configured with the time for broadcasting the public beep-page message for MTCUE and/or frequency resource; And transmitting element 420, for broadcasting described public beep-page message at each paging cycle periodically by PDSCH, wherein said public beep-page message is not broadcasted in each paging occasion.
In this article, with reference to accompanying drawing, method disclosed herein is described. It is to be understood that, shown in accompanying drawing and sequence of steps described in this description is merely schematic, without departing from the scope of the claims, these method steps and/or action can perform in a different order and be not limited to particular order shown in accompanying drawing and described in this description.
In one or more exemplary design, it is possible to realize function described herein by hardware, software, firmware or their combination in any. If realized with software, then described function can be stored on a computer-readable medium as one or more instructions or code, or transmit as the one or more instructions on computer-readable medium or code. Computer-readable medium includes computer-readable storage medium and communication media, and wherein communication media includes contributing to computer program and is delivered to the arbitrary medium of another place from a place. Storage medium can be the addressable any usable medium of universal or special computer. This computer-readable medium can include, such as but not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disc memory apparatus, disk storage equipment or other magnetic storage apparatus, or can be used for carrying with the form of universal or special computer or the addressable instruction of universal or special processor or data structure or storing other medium any of desired code modules. Further, computer-readable medium of can also being known as arbitrarily is connected. Such as, if software be use coaxial cable, optical fiber cable, twisted-pair feeder, Digital Subscriber Line (DSL) or such as infrared ray, radio and microwave etc wireless technology come from website, server or other remote source, then the wireless technology of coaxial cable, optical fiber cable, twisted-pair feeder, DSL or such as infrared ray, radio and microwave etc is also included within the definition of medium.
Can realize or perform by general processor, digital signal processor (DSP), special IC (ASIC), field programmable gate array (FPGA) or other PLD, discrete gate or transistor logic, discrete hardware components or the combination in any for performing function as herein described in conjunction with the various exemplary logical block described by the disclosure, module and circuit. General processor can be microprocessor, or, processor can also be any common processor, controller, microcontroller or state machine. Processor can also be embodied as the combination of computing equipment, for instance, the combination of DSP and the combination of microprocessor, multi-microprocessor, one or more microprocessor and DSP core, or other this kind of structure any.
Those of ordinary skill in the art it is also understood that the various exemplary logical block, module, circuit and the algorithm steps that describe in conjunction with embodiments herein can be implemented as electronic hardware, computer software or combination. In order to clearly show that this interchangeability between hardware and software, above various exemplary parts, block, module, circuit and step are all carried out general description around its function. It is implemented as hardware as this function and is also implemented as software, depend on specific application and apply design constraint over the whole system. Those skilled in the art for every kind of application-specific, can realize described function in the way of flexible, but, this realize decision-making and should not be construed as and deviate from protection scope of the present invention.
The above description of the disclosure is for making any those of ordinary skill of this area be capable of or use the present invention. To those skilled in the art, the various amendments of the disclosure will be apparent from, and general principle defined herein can also be applied to other deformation when without deviating from the spirit and scope of the disclosed invention. Therefore, the present invention is not limited to example as herein described and design, but consistent with the widest scope of principle disclosed herein and novel features.
Claims (14)
1. the method being used for the public beep-page message of machine type communication (MTC) subscriber equipment (UE) for transmission, including:
In Physical Downlink Control Channel (PDCCH) or enhancing PDCCH (EPDCCH), configuration is for the public beep-page message of one or more MTCUE; And
Described PDCCH or EPDCCH is broadcast to described MTCUE.
2. the method for claim 1, wherein configures described public beep-page message and includes: configuring special DCI format to comprise described public beep-page message, described special DCI format is different from the DCI format for non-MTCUE.
3. method as claimed in claim 2, the length of wherein said special DCI format depends on the species number of the MTC public beep-page message supported.
4. the method for claim 1, wherein configure described public beep-page message to include: reuse the DCI format for non-MTCUE to comprise described public beep-page message, and use for MTCUE public beep-page message special RNTI sequence pair its carry out scrambling.
5. method as claimed in claim 4, wherein uses any one in FFF4-FFFC or uses M-RNTI that the DCI comprising described public beep-page message is carried out scrambling.
6. the method for claim 1, wherein configure described public beep-page message to include: reuse the DCI format for non-MTCUE to comprise described public beep-page message, and use the beep-page message for non-MTCUE RNTI sequence pair its carry out scrambling, but comprise in described DCI format for insignificant field MTCUE to indicate described DCI to comprise the public beep-page message for MTCUE.
7. a device for the public beep-page message of machine type communication (MTC) subscriber equipment (UE) it is used for for transmission, including:
Dispensing unit, for configuration in Physical Downlink Control Channel (PDCCH) or enhancing PDCCH (EPDCCH) for the public beep-page message of one or more MTCUE; And
Transmitting element, for being broadcast to described MTCUE by described PDCCH or EPDCCH.
8. device as claimed in claim 7, wherein said dispensing unit is for configuring special DCI format to comprise described public beep-page message, and described special DCI format is different from the DCI format for non-MTCUE.
9. device as claimed in claim 8, wherein said special DCI format comprises 2 bits, is respectively used to the public beep-page message of SIB amendment, ETWS instruction and EAB amendment for instruction.
10. device as claimed in claim 7, wherein said dispensing unit for reusing the DCI format for non-MTCUE to comprise described public beep-page message, and use the public beep-page message for MTCUE special RNTI sequence pair its carry out scrambling.
11. device as claimed in claim 10, wherein said dispensing unit uses any one in FFF4-FFFC or uses M-RNTI that the DCI comprising described public beep-page message is carried out scrambling.
12. device as claimed in claim 7, wherein said dispensing unit is for reusing the DCI format for non-MTCUE to comprise described public beep-page message, and use the beep-page message for non-MTCUE RNTI sequence pair its carry out scrambling, but comprise in described DCI format for insignificant field MTCUE to indicate described DCI to comprise the public beep-page message for MTCUE.
13. the method being used for the public beep-page message of machine type communication (MTC) subscriber equipment (UE) for transmission, including:
Pre-define or be pre-configured with the time for broadcasting the public beep-page message for MTCUE and/or frequency resource; And
Periodically broadcasting described public beep-page message at each paging cycle in Energy Resources Service that is pre-defined or that be pre-configured with, wherein said public beep-page message is not broadcasted in each paging occasion.
14. be used for a device for the public beep-page message of machine type communication (MTC) subscriber equipment (UE) for transmission, including:
Pre-configured unit, for pre-defining or being pre-configured with the time for broadcasting the public beep-page message for MTCUE and/or frequency resource; And
Transmitting element, for periodically broadcasting described public beep-page message at each paging cycle in Energy Resources Service that is pre-defined or that be pre-configured with, wherein said public beep-page message is not broadcasted in each paging occasion.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108990149A (en) * | 2017-06-05 | 2018-12-11 | 普天信息技术有限公司 | Page configuration method |
| CN108990149B (en) * | 2017-06-05 | 2021-10-26 | 普天信息技术有限公司 | Paging configuration method |
| WO2021197225A1 (en) * | 2020-03-31 | 2021-10-07 | 华为技术有限公司 | Communication method and device |
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