WO2016101747A1 - 下行信息的发送方法及装置 - Google Patents

下行信息的发送方法及装置 Download PDF

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Publication number
WO2016101747A1
WO2016101747A1 PCT/CN2015/095446 CN2015095446W WO2016101747A1 WO 2016101747 A1 WO2016101747 A1 WO 2016101747A1 CN 2015095446 W CN2015095446 W CN 2015095446W WO 2016101747 A1 WO2016101747 A1 WO 2016101747A1
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Prior art keywords
information
dci
transmitting
specified information
specified
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PCT/CN2015/095446
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English (en)
French (fr)
Inventor
张雯
夏树强
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN201510236650.0A external-priority patent/CN106211329A/zh
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to JP2017533830A priority Critical patent/JP2018506207A/ja
Priority to US15/539,274 priority patent/US20170367070A1/en
Priority to EP15871816.3A priority patent/EP3240347A4/en
Publication of WO2016101747A1 publication Critical patent/WO2016101747A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02Arrangements for increasing efficiency of notification or paging channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular to a method and an apparatus for transmitting downlink information.
  • MTC Machine Type Communication
  • UE Terminal User Equipment
  • M2M Machine to Machine
  • LTE Long-Term Evolution
  • LTE-Advance Long-Term Evolution Advance
  • MTC multi-class data services based on LTE/LTE-A will also be more attractive.
  • the MTC device is usually a low-cost device with a supported radio frequency (RF) bandwidth and a single receiving antenna.
  • RF radio frequency
  • the 3rd Generation Partnership Project (3GPP) is neutralized in R12 and R13 for low cost and An enhanced MTC UE is required to provide a solution.
  • the current solution for coverage enhancement is to improve coverage by a large number of repetitions of certain channels.
  • paging can send pages to idle and connected UEs.
  • the paging process may be triggered by the core network to notify a certain UE to receive a paging request, or triggered by an Evolved Node B (eNB) for notifying the system information update, and notifying the UE to receive the earthquake, Information such as the Earthquake and Tsunami Warning System (ETWS) or the Commercial Mobile Alert Service (CMAS).
  • ENB Evolved Node B
  • Evolved Node B eNB
  • Information such as the Earthquake and Tsunami Warning System (ETWS) or the Commercial Mobile Alert Service (CMAS).
  • EWS Earthquake and Tsunami Warning System
  • CMAS Commercial Mobile Alert Service
  • Radio Resource Control (Radio Resource Control, abbreviated as RRC) idle state UE, where paging information refers to information that the RRC idle state UE is called;
  • RRC Radio Resource Control
  • the UE is notified about the CMAS notification information.
  • a paging message is a public message that is sent on a paging subframe and may contain all of the above information, ie, system message change information, ETWS notification information, and CMAS notification information, or a subset of these types of information (if Need to be sent on the paging subframe).
  • the terminal Before receiving the paging message, the terminal needs to first monitor the physical downlink control channel (Physical Downlink Control Channel, PDCCH for short), and then according to whether there is a PDCCH channel.
  • P-RNTI Paging Radio Network Temporary Identifier
  • the eNB does not send paging information to it, and only needs to receive the system message change information, the ETWS notification information, and the CMAS notification information, but when receiving, the UE still needs to receive the entire paging message.
  • the UE For a UE that needs to cover the enhanced connection state, in order to correctly receive the paging message, the UE needs to receive a large number of repeated control information for scheduling paging messages, and a large number of repeated paging messages themselves, on the one hand, only supporting RF narrowband. For the MTC UE, it affects its reception of proprietary information. On the other hand, if proprietary information is sent in another narrowband, it is also not conducive to MTC UE energy saving. Even if the paging message is in the form of blind transmission, that is, the control information is not used, the paging message itself contains a large amount of information, and the transmission block size (TBS) is large, and it is still necessary to receive a large number of repetitions. Page message.
  • TBS transmission block size
  • the embodiment of the invention provides a method and a device for transmitting downlink information, so as to at least solve the technical problem that the UE needs to receive a large number of repeated unnecessary paging messages in the related art.
  • a method for transmitting downlink information including: determining specified information that needs to be sent to a user equipment UE, where the specified information includes at least one of: system message change information, earthquake and Tsunami warning system ETWS notification information, commercial mobile alarm service CMAS notification information, Extended Access Barring (EAB) parameter change notification information; the specified information is sent to the UE according to a predetermined manner, wherein The predetermined manner is different from the manner in which the specified information is transmitted by the paging message.
  • the specified information includes at least one of: system message change information, earthquake and Tsunami warning system ETWS notification information, commercial mobile alarm service CMAS notification information, Extended Access Barring (EAB) parameter change notification information
  • EAB Extended Access Barring
  • the predetermined manner includes one of: transmitting by scheduling scheduled downlink control information DCI; transmitting by DCI dedicated to transmitting the specified information; by being dedicated to transmitting the specified information
  • the physical downlink shared channel PDSCH or the physical uplink shared channel PUSCH transmission scheduled by the DCI transmitted by a Master Information Block (MIB) information; and transmitted through a channel dedicated to transmitting the specified information.
  • MIB Master Information Block
  • transmitting by scheduling an existing DCI includes one of: DCI transmission by scheduling a paging message; DCI transmission by scheduling UE-specific data.
  • the sending, by scheduling, the existing DCI includes: adding a field for carrying the specified information to the existing DCI; and specifying a field in the existing DCI Re-defining, wherein the re-defined specified field is used to indicate the specified information; and the specified information is indicated by one of the existing DCIs: reserved bits, idle bits, idle of the specified field State; using a different paging radio network temporary identifier P-RNTI to scramble or mask the cyclic redundancy check CRC of the existing DCI to indicate different specified information.
  • transmitting, by DCI, dedicated to transmitting the specified information includes: scrambling or masking the CRC of the DCI dedicated to transmitting the specified information by using a dedicated P-RNTI Code to indicate the finger Information.
  • the DCI dedicated to sending the specified information when the specified information is sent by using the DCI dedicated to sending the specified information, the DCI dedicated to sending the specified information does not have a corresponding PDSCH or physical uplink. Shared channel PUSCH.
  • the sending by the MIB information includes one of: indicating the specified information by using idle bits in the MIB;
  • a field for indicating the specified information is defined in the MIB; different specified information is indicated by scrambling or masking the CRC of the MIB with a different sequence.
  • the system message change information includes: system message change information on one or more working frequency bands.
  • a method for receiving downlink information including: receiving, by a UE, specified information according to a predetermined manner, wherein the specified information includes at least one of: system message change information, earthquake and tsunami warning
  • the system ETWS notification information, the commercial mobile alarm service CMAS notification information, and the extended access control EAB parameter change notification information are different from the manner of receiving the specified information by the paging message.
  • the predetermined manner includes one of: receiving by scheduled downlink control information DCI; receiving on a DCI dedicated to transmitting the specified information; and dedicated to transmitting the The physical downlink shared channel PDSCH or the physical uplink shared channel PUSCH scheduled by the DCI of the specified information is received; received by the MIB information; and received on a channel dedicated to transmitting the specified information.
  • receiving on the scheduled existing DCI includes receiving one of: receiving on the DCI through the scheduled paging message; and scheduling the DCI reception of the UE-specific data.
  • a device for transmitting downlink information including: a determining module, configured to determine specified information that needs to be sent to a user equipment UE, where the specified information includes at least one of: a system Message change information, earthquake and tsunami warning system ETWS notification information, commercial mobile alarm service CMAS notification information, extended access control EAB parameter change notification information, and a sending module, configured to send the specified information to the UE according to a predetermined manner
  • the predetermined manner is different from the manner in which the specified information is sent by using a paging message.
  • the sending module is configured to send the specified information according to one of the following predetermined manners: by scheduling existing downlink control information DCI; by transmitting the specified information DCI transmission; transmission by a physical downlink shared channel PDSCH or a physical uplink shared channel PUSCH scheduled by a DCI dedicated to transmitting the specified information; transmission by a primary information block MIB information; transmission by a channel dedicated to transmitting the specified information.
  • the sending module is configured to schedule the existing DCI to send the specified information by using one of the following methods: DCI transmission by scheduling a paging message; DCI by scheduling UE proprietary data. send.
  • a receiving apparatus for downlink information which is applied to a UE, and includes: a receiving module, configured to receive specified information according to a predetermined manner, wherein the specified information includes at least one of: a system Eliminate The information change information, the earthquake and tsunami warning system ETWS notification information, the commercial mobile alarm service CMAS notification information, and the extended access control EAB parameter change notification information are different from the manner of receiving the specified information by the paging message.
  • a system Eliminate The information change information, the earthquake and tsunami warning system ETWS notification information, the commercial mobile alarm service CMAS notification information, and the extended access control EAB parameter change notification information are different from the manner of receiving the specified information by the paging message.
  • the receiving module is configured to receive the specified information according to a predetermined manner according to one of the following: receiving by the scheduled existing DCI; and DCI dedicated to transmitting the specified information.
  • the receiving module is configured to receive the specified information by scheduling an existing DCI according to one of the following manners: receiving by using a scheduled paging message on a DCI; DCI reception of data.
  • Technical problems such as unnecessary paging messages, thereby reducing the impact of the UE on the reception of proprietary information, and avoiding energy consumption problems caused by the UE receiving a large number of repeated paging messages.
  • FIG. 1 is a flowchart of a method for transmitting downlink information according to an embodiment of the present invention
  • FIG. 2 is a structural block diagram of a device for transmitting downlink control information according to an embodiment of the present invention.
  • the UE For a UE that needs to cover the enhanced connection state, in order to correctly receive the paging message, the UE needs to receive a large number of repeated control messages for scheduling paging messages, and a large number of repeated paging messages themselves, for MTCs that only support RF narrowband. For the UE, it affects the reception of proprietary information. If the proprietary information is sent in another narrowband, it is also not conducive to the MTC UE energy saving. Even if the paging message adopts the blind transmission mode, that is, the control information scheduling is not used, since the paging message itself contains more information and the TBS is larger, it still needs to receive a large number of repeated paging messages. To solve this problem, the embodiment of the present invention redefines a paging mode for a UE in a connected state (but not limited to a UE in the state). The details are as follows.
  • FIG. 1 is a flowchart of a method for transmitting downlink information according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following processing steps S102-S104:
  • Step S102 determining specified information that needs to be sent to the UE, where the specified information includes at least one of the following: System message change information, ETWS notification information, CMAS notification information, EAB parameter change notification information;
  • Step S104 The specified information is sent to the UE according to a predetermined manner, where the predetermined manner is different from the manner of transmitting the specified information by using a paging message.
  • the specified information that needs to be sent to the UE by using the paging message in the prior art can be sent in the manner different from the manner in which the specified information is sent by using the paging message, so that the UE needs to be solved.
  • the predetermined manner described above includes, but is not limited to, one of the following:
  • the scheduling by the existing DCI includes one of the following: DCI transmission by scheduling a paging message; DCI transmission by scheduling UE proprietary data; the existing DCI can be understood as an existing communication.
  • the above is transmitted by DCI dedicated to transmitting the above specified information.
  • the CRC of the DCI dedicated to transmitting the specified information may be scrambled or masked with a dedicated P-RNTI to indicate the specified information.
  • the DCI dedicated to transmitting the specified information does not have a corresponding PDSCH or PUSCH.
  • a dedicated P-RNTI it can be understood that the P-RNTI different from the P-RNTI indicating the paging message can also be understood as being dedicated to CRC scrambling or masking the DCI dedicated to transmitting the specified information. To indicate the P-RNTI of the above specified information.
  • the MIB information transmission may be expressed as one of the following implementation forms, but is not limited thereto: the idle information bit in the MIB is used to indicate the specified information; and the field for indicating the specified information is defined in the MIB; Differentiating the above specified information by scrambling or adding a different sequence to the CRC code of the MIB;
  • the scheduling of the existing DCI transmission may be implemented by one of the following methods, but is not limited thereto:
  • the CRC code of the existing DCI is scrambled or masked by different P-RNTIs to indicate different specified information.
  • the system message change information described above may include system message change information on one or more operating bands.
  • a device for transmitting downlink information is further provided to implement the foregoing method. As shown in FIG. 2, the device includes:
  • the determining module 20 is configured to determine specified information that needs to be sent to the user equipment UE by using a paging message, where the specified information includes at least one of: system message change information, earthquake and tsunami warning system ETWS notification information, commercial mobile alarm Service CMAS notification information, EAB parameter change notification information;
  • the sending module 22 is configured to send the specified information to the UE according to a predetermined manner, where the predetermined manner is different from the manner of sending the specified information by using a paging message.
  • the sending module 22 is configured to send the specified information according to a predetermined manner in one of the following: by scheduling existing downlink control information DCI; by DCI dedicated to transmitting the specified information Transmission; transmission by PDSCH or PUSCH scheduled by DCI dedicated to transmitting the specified information; transmission by MIB information; transmission by a channel dedicated to transmitting the specified information.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the determining module 20 and the sending module 22 are located in the same processor; or determining the module 20 and The transmitting module 22 is located in the first processor and the second processor, respectively.
  • the embodiment of the present invention further improves the UE side, and the method for receiving downlink information provided by the embodiment of the present invention includes:
  • the UE receives the specified information according to a predetermined manner, where the specified information includes at least one of: system message change information, earthquake and tsunami warning system ETWS notification information, commercial mobile alert service CMAS notification information, and EAB parameter change notification information,
  • the predetermined manner is different from the manner in which the specified information is received by the paging message.
  • the predetermined manner includes one of: receiving by scheduled downlink control information DCI; receiving on a DCI dedicated to transmitting the specified information; and dedicated to transmitting the Receiving on the PDSCH or PUSCH scheduled by the DCI of the specified information; receiving by the MIB information; receiving on the channel dedicated to transmitting the specified information.
  • receiving on the scheduled existing DCI includes receiving one of: receiving on the DCI through the scheduled paging message; and scheduling the DCI reception of the UE-specific data.
  • the embodiment of the present invention further provides a downlink information receiving apparatus, which is applied to a UE, and includes: a receiving module, configured to receive specified information according to a predetermined manner, where the specified information includes at least one of: system message change information, ETWS
  • the notification information, the CMAS notification information, and the EAB parameter change notification information are different from the manner of receiving the specified information by the paging message.
  • the receiving module is configured to receive the specified information in a predetermined manner according to one of the following:
  • DCI Received by the scheduled downlink control information DCI; DCI refers to the DCI already existing in the related art.
  • the receiving module is further configured to receive the specified information by scheduling the existing DCI according to one of the following methods: receiving on the DCI of the scheduled paging message; and scheduling the DCI reception of the UE-specific data.
  • the above-mentioned respective modules involved in the embodiment may be implemented by software or by corresponding hardware.
  • the receiving module may be Located in the processor.
  • the definition information related to the following embodiments may be defined as one or more of system message change information, ETWS notification information, CMAS notification information, and EAB parameter change notification information as designation information.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the specified information is included.
  • a field indicating the specified information is added to the DCI that schedules the paging message. Or re-defining certain fields in the DCI to indicate specified information, such as redefining a Hybrid Automatic Repeat Request (HARQ) process indication field as a field indicating the specified information.
  • HARQ Hybrid Automatic Repeat Request
  • the reserved bit or the vacant bit in the DCI of the paging message or the vacant state of some fields may be used, for example, the reserved bit in the DCI format 1A is used to indicate, or the HARQ process number indication field (3 bit)
  • the high-order bit (1 bit) of the transmission power control (TPC) command field of the PUCCH, or the reserved state indication of the MCS domain, is not limited to this. An example of a specific indication is given below.
  • the 3bit information can be used to represent whether there is system message change information, ETWS notification information, and CMAS notification information. For example, if the first bit is “1”, it indicates that the system message has changed, and "0" indicates that the system message has not changed; the second If the bit is "1", it indicates that the eNB is about to send an ETWS message, that is, a System Information Block (SIB) 10 and/or SIB11. A “0" indicates that the eNB will not send an ETWS message; if the third bit is It is "1", indicating that there is an eNB that will send a CMAS message, that is, SIB12, and "0" indicates that the eNB will not send a CMAS message.
  • SIB System Information Block
  • the UE will receive the system message instead of receiving the SIB10 corresponding to the ETWS. SIB11, and the SIB12 corresponding to the CMAS.
  • the actual application is not limited to this representation.
  • This information may not be included if the UE or eNB does not support ETWS and/or CMAS. For example, it is assumed that the UE or the eNB does not support these two functions, that is, only one bit is needed to indicate whether a system message change has occurred.
  • the system message change information, the ETWS notification information, and the CMAS notification information in the paging message of the DCI scheduling may be retained or deleted. This embodiment does not limit the information.
  • the system change information in the specified information may be system message change information on one or more working frequency bands.
  • one or more working frequency bands are one or more MTC UEs.
  • the narrow band of work If there are multiple working narrowbands in the system bandwidth, there are corresponding system information on multiple narrowbands (system information office) If the number of narrowbands is not greater than the total number of working narrowbands, it may be necessary to indicate whether system messages on multiple narrowbands have changed. You can use 1bit to indicate whether the system messages on multiple narrowbands have changed. For example, if the system messages on all narrowbands have not changed, they are represented by "0", otherwise they are represented by "1".
  • the DCI that schedules the paging message may be received, and the specified information is obtained from the DCI, and the specified information may be acquired without receiving the paging message scheduled by the DCI.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the designation information is indicated in the DCI that schedules the UE's proprietary data, that is, in the DCI that schedules the UE to transmit the PUSCH or receives the PDSCH, such that the eNB may notify the UE of the designation information when scheduling the UE to transmit/receive data.
  • a field indicating the specified information is added in the DCI of the UE's proprietary data, or a reserved bit or a vacant bit or a vacant state of some fields is used to indicate, or some existing fields are redefined to indicate.
  • the DCI may be a DCI of all formats, or may be a partial format DCI, such as format1A.
  • the indication method is similar to that of the first embodiment.
  • the UE After receiving the DCI scheduling the UE, the UE obtains the specified information according to the field. For example, if the 3 bit information is used to represent whether there is system message change information, ETWS notification information, and CMAS notification information, if the UE receives the field as "000", it means that no system message change occurs, and its eNB will not send ETWS and CMAS. The message, the UE will not receive system messages and SIBs 10-12. The actual application is not limited to this representation.
  • Different P-RNTIs are used to notify the specified information. That is, the CRC of the DCI that schedules the paging message or the CRC of the DCI that schedules the UE's proprietary data is scrambled or masked with different P-RNTIs to indicate the specified information.
  • the system information may also be system information on a plurality of narrowbands.
  • the system message change information, the ETWS notification information, and the CMAS notification information in the paging message of the DCI scheduling may be retained or removed, which is not limited in the embodiment of the present invention.
  • the P-RNTI_1 is used to scramble or add a mask to the DCI of the scheduled paging message to indicate that the system message has not changed.
  • - RNTI_2 scrambling or masking the CRC of the DCI that schedules the paging message indicates that the system message has changed.
  • the UE performs de-scrambling or de-masking on the DCI CRC by using P-RNTI_1 and P-RNTI2, performs CRC check, and determines which P-RNTI is used to determine whether system information change has occurred.
  • the method of scrambling or adding a mask may be adopted.
  • the method of XORing the bits for example, the P-RNTI is 16 bits, and the CRC is also 16 bits.
  • the bits of the corresponding positions are XORed, for example, the P-RNTI is "0000110100001111” and the CRC is "1111001111110011”.
  • the CRC is scrambled with the P-RNTI to obtain "1111111011111100”.
  • the receiver will XOR the scrambled CRC and the P-RNTI bit by bit, and the CRC can be obtained.
  • the actual application is not limited to this way of scrambling or adding a mask.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the DCI's CRC is scrambled or masked with a dedicated P-RNTI (ie, scrambled or masked with a dedicated P-RNTI).
  • the DCI does not have a corresponding scheduled PDSCH or PUSCH. For example, if it is necessary to notify the system message change information, the notification information, and the CMAS notification information, the system message change information is 1 bit, the ETWS notification information is 1 bit, and the CMAS notification information is 1 bit, then 3 bits are used to indicate the information in the DCI.
  • the DCI may have only 3 bits of useful information, or may have some redundant bits.
  • the redundant bits are not defined, or the other bits may be used to indicate some other common information, which is not limited in the embodiment of the present invention.
  • the size of the DCI may be the same as some existing DCIs, such as equal to format 1C.
  • the DCI may be sent on some preset subframes or on the paging occasion of the cell.
  • the connected UE detects the P-RNTI scrambled or masked DCI on the preset subframe or the paging occasion of the cell, and obtains the specified information according to the content of the DCI.
  • the method of scrambling or adding a mask may adopt a method of performing XOR by bit, but is not limited thereto.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • the above specified information is transmitted through a PDSCH or a PUSCH scheduled by a dedicated DCI (ie, DCI dedicated to transmitting the above specified information), the CRC of the dedicated DCI is scrambled or masked by a dedicated P-RNTI, the DCI You can use an existing DCI format, such as format 1C, or a new DCI format.
  • the TBS of the dedicated DCI-scheduled PDSCH may be used in the existing TBS, or may be redefined, which is not limited in the embodiment of the present invention. This has the advantage that the packet can be transmitted with more resources, and the code rate can be very low, so that the UE can obtain the specified information as soon as possible.
  • the dedicated DCI and the scheduled PDSCH may be sent on some preset subframes, or may also be sent on the paging occasion of the cell.
  • the UE in the connected state detects the dedicated DCI that is scrambled or masked by using the P-RNTI on the preset subframe or the paging occasion of the cell, and obtains the specified information loaded on the PDSCH scheduled by the DCI according to the DCI.
  • the method of scrambling or adding a mask may adopt a method of performing XOR by bit, but is not limited thereto.
  • the MIB may be an existing MIB, for example, using a number of bits in the idle 10 bits in the MIB to indicate specified information, and the indication information in the MIB may remain unchanged in one cycle, such as staying in a paging cycle. Alternatively, or may not be limited to a paging cycle, it may be a newly defined period value.
  • the field in the information MIB may remain unchanged for one period, such as remaining in a paging cycle, or may not be limited to With the paging cycle, it can be a newly defined period value.
  • the CRC of the new MIB may be scrambled or masked by using an unused scrambling code to indicate specified information, the scrambling code remains unchanged during a paging cycle, or may not be limited to adopting a homing
  • the call cycle can be a newly defined cycle value.
  • the method of scrambling or adding a mask may adopt a method of performing XOR by bit, but is not limited thereto.
  • the connected UE receives the MIB at least once during the period to obtain the specified information.
  • a dedicated channel i.e., a channel dedicated to transmitting the specified information
  • the channel is sent in a preset symbol of the preset subframe and a preset frequency domain position, for example, six physical resource blocks (PRBs) in the center of the last three symbols of the subframe #0. In fact, this is not limited to this method.
  • the information contained in a preset period is unchanged, such as the information contained in a paging cycle.
  • the UE may receive information on the channel on the subframe within the preset period to obtain the specified information.
  • the UE receives the designated information according to a predetermined manner, wherein the specified information includes at least EAB parameter change notification information; the predetermined manner is different from the manner of receiving the specified information by the paging message.
  • the predetermined manner may be at least one of the predetermined manners described in the first embodiment to the seventh embodiment, that is, the predetermined manner may be at least one of: receiving by the scheduled existing downlink control information DCI; and dedicated to transmitting the specified Receiving on the DCI of the information; receiving on the PDSCH or PUSCH scheduled by the DCI dedicated to transmitting the specified information; receiving through the MIB information; receiving on the channel dedicated to transmitting the specified information.
  • the EAB parameter change notification information may be 1 bit information, for example, “0” indicates that the EAB parameter has not changed, “1” indicates that the EAB parameter has been changed, and if the UE receives the EAB parameter change notification information “1”, the UE will receive Changed EAB parameter information.
  • the EAB parameter information is included in the SIB 14. If the UE receives the EAB parameter change notification information as "1”, the UE will re-receive the SIB 14. In future actual systems, EAB parameters can also be included in the newly defined SIB.
  • a storage medium is further provided, wherein the software includes the above-mentioned software, including but not limited to: an optical disk, a floppy disk, a hard disk, an erasable memory, and the like.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network of multiple computing devices. Alternatively, they may be implemented by program code executable by a computing device such that they may be stored in a storage device by a computing device and, in some cases, may be executed in a different order than herein.
  • the steps shown or described are either made separately into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
  • the foregoing technical solution provided by the embodiment of the present invention may be applied to the sending of the specified information that needs to be sent to the UE in the prior art in a predetermined manner different from the sending manner in which the specified information is sent by using the paging message.
  • the technical solution solves the technical problem that the UE needs to receive a large number of repeated unnecessary paging messages in the related art, thereby reducing the impact of the UE on the reception of the proprietary information, and avoiding the UE receiving a large number of repeated paging messages. Energy consumption issues.

Abstract

本发明提供了一种下行信息的发送方法及装置,其中,上述发送方法包括:确定需要发送给UE的指定信息,其中,所述指定信息包括以下至少之一:系统消息变更信息、ETWS通知信息、CMAS通知信息、EAB参数变更通知信息;将所述指定信息按照预定方式发送给所述UE,其中,所述预定方式为与通过寻呼消息发送所述指定信息的方式不同。采用本发明提供的上述技术方案,解决了相关技术中UE需要接收大量重复的不必要寻呼消息等技术问题,从而降低了UE对专有信息接收的影响,以及避免了UE由于接收大量重复的寻呼消息而导致的能耗问题。

Description

下行信息的发送方法及装置 技术领域
本发明涉及通信领域,具体而言,涉及一种下行信息的发送方法及装置。
背景技术
机器类型通信(Machine Type Communication,简称为MTC)用户设备(又称为终端User Equipment,简称为UE),又称,机器到机器(Machine to Machine,简称M2M)用户通信设备,是目前物联网的主要应用形式。
近年来,由于长期演进(Long-Term Evolution,简称为LTE)/高级长期演进系统(Long-Term Evolution Advance,简称为LTE-Advance或LTE-A)的频谱效率高,越来越多的移动运营商选择LTE/LTE-A作为宽带无线通信系统的演进方向。基于LTE/LTE-A的MTC多种类数据业务也将更具吸引力。
MTC设备通常是低成本的设备,具有支持的射频(Radio Frequency,简称为RF)带宽比较小、单接收天线等特征。有一类MTC设备,比如电表等,可能被放置在地下室的铁皮柜中,覆盖非常差,第三代合作伙伴计划(3rd Generation Partnership Project,简称为3GPP)在R12和R13中立项,为低成本和需要覆盖增强的MTC UE提供解决方案。目前针对覆盖增强的解决方案是通过对某些信道的大量重复来提升覆盖。
在现有的LTE系统中,寻呼可以向空闲态和连接态的UE发送寻呼。寻呼过程可以由核心网触发,用于通知某个UE接收寻呼请求,或者由演进的节点B(Evolved Node B,简称为eNB)触发,用于通知系统信息更新,以及通知UE接收地震、海啸预警系统(Earthquake and Tsunami warning System,简称为ETWS)或者商业移动告警服务(Commercial Mobile Alert Service,简称为CMAS)等信息。寻呼的目的如下:
发送寻呼信息(paging information)给无线资源控制(Radio Resource Control,简称为RRC)空闲态的UE,这里的寻呼信息是指所述RRC空闲态的UE被呼叫的信息;
通知RRC连接态/空闲态的UE系统消息变更;
通知UE关于ETWS主通知、辅助通知的信息;
通知UE关于CMAS通知信息。
寻呼消息(paging message)是一个公共信息,在寻呼子帧上发送,可能包含上述所有信息,即系统消息变更信息、ETWS通知信息和CMAS通知信息,或者这几种信息的子集(如果需要在所述寻呼子帧上发送的话)。在接收寻呼消息之前,终端需要先去监听物理下行控制信道(Physical Downlink Control Channel,简称为PDCCH),然后根据PDCCH信道上是否有 携带寻呼无线网络临时标识(Paging Radio Network Temporary Identifier,简称为P-RNTI),来判断网络在本次寻呼周期是否有发寻呼消息,如果检测到P-RNTI,则去接收寻呼消息。对于RRC连接态的UE,eNB不会给其发送寻呼信息,只需要接收系统消息变更信息、ETWS通知信息和CMAS通知信息即可,但在接收时,UE仍需接收整个寻呼消息。
对于需要覆盖增强的连接态的UE来说,为了能正确接收寻呼消息,UE需要接收大量重复的调度寻呼消息的控制信息,以及大量重复的寻呼消息本身,一方面对于只支持RF窄带的MTC UE来说,影响了其接收专有信息。另一方面如果专有信息在另一个窄带发送,也不利于MTC UE节能。即使寻呼消息采用盲传输的方式,即不使用控制信息调度,但由于寻呼消息本身包含信息较多,传输块尺寸(Transmission-Block Size,简称为TBS)较大,仍需要接收大量的重复的寻呼消息。
针对相关技术中的上述问题,目前尚无有效的解决方案。
发明内容
本发明实施例提供了一种下行信息的发送方法及装置,以至少解决相关技术中UE需要接收大量重复的不必要寻呼消息等技术问题。
根据本发明的一个实施例,提供了一种下行信息的发送方法,包括:确定需要发送给用户设备UE的指定信息,其中,所述指定信息包括以下至少之一:系统消息变更信息、地震和海啸预警系统ETWS通知信息、商业移动告警服务CMAS通知信息、扩展接入控制(Extended Access Barring,简称EAB)参数变更通知信息;将所述指定信息按照预定方式发送给所述UE,其中,所述预定方式为与通过寻呼消息发送所述指定信息的方式不同。
在本发明的一个可选实施例中,所述预定方式包括以下之一:通过调度已有下行控制信息DCI发送;通过专用于发送所述指定信息的DCI发送;通过专用于发送所述指定信息的DCI所调度的物理下行共享信道PDSCH或物理上行共享信道PUSCH发送;通过主信息块(Master Information Block,简称为MIB)信息发送;通过专用于发送所述指定信息的信道发送。
在本发明的一个可选实施例中,通过调度已有DCI发送包括以下之一:通过调度寻呼消息的DCI发送;通过调度UE专有数据的DCI发送。
在本发明的一个可选实施例中,通过调度已有DCI发送包括以下之一:在所述已有DCI中增加用于携带所述指定信息的字段;对所述已有DCI中的指定字段进行重新定义,其中,重新定义后的所述指定字段用于指示所述指定信息;采用所述已有DCI中的以下之一指示所述指定信息:预留比特、空闲比特、指定字段的空闲状态;采用不同的寻呼无线网络临时标识P-RNTI对所述已有DCI的循环冗余校验CRC进行加扰或加掩码来指示不同的所述指定信息。
在本发明的一个可选实施例中,通过专用于发送所述指定信息的DCI发送,包括:采用专用P-RNTI对所述专用于发送所述指定信息的DCI的CRC进行加扰或加掩码来指示所述指 定信息。
在本发明的一个可选实施例中,在通过所述专用于发送所述指定信息的DCI发送所述指定信息时,所述专用于发送所述指定信息的DCI不存在对应的PDSCH或物理上行共享信道PUSCH。
在本发明的一个可选实施例中,通过MIB信息发送包括以下之一:采用MIB中的空闲比特指示所述指定信息;
在MIB中定义用于指示所述指定信息的字段;通过对MIB的CRC采用不同的序列进行加扰或加掩码来指示不同的所述指定信息。
在本发明的一个可选实施例中,所述系统消息变更信息包括:一个或者多个工作频带上的系统消息变更信息。
根据本发明的又一个实施例,提供了一种下行信息的接收方法,包括:UE按照预定方式接收指定信息,其中,所述指定信息包括以下至少之一:系统消息变更信息、地震和海啸预警系统ETWS通知信息、商业移动告警服务CMAS通知信息、扩展接入控制EAB参数变更通知信息,所述预定方式为与通过寻呼消息接收所述指定信息的方式不同。
在本发明的一个可选实施例中,所述预定方式包括以下之一:通过调度的已有下行控制信息DCI接收;在专用于发送所述指定信息的DCI上接收;在专用于发送所述指定信息的DCI所调度的物理下行共享信道PDSCH或物理上行共享信道PUSCH上接收;通过MIB信息接收;在专用于发送所述指定信息的信道上接收。
在本发明的一个可选实施例中,通过调度的已有DCI上接收包括以下之一:通过调度的寻呼消息的DCI上接收;通过调度UE专有数据的DCI接收。
根据本发明的又一个实施例,提供了一种下行信息的发送装置,包括:确定模块,设置为确定需要发送给用户设备UE的指定信息,其中,所述指定信息包括以下至少之一:系统消息变更信息、地震和海啸预警系统ETWS通知信息、商业移动告警服务CMAS通知信息、扩展接入控制EAB参数变更通知信息;发送模块,设置为将所述指定信息按照预定方式发送给所述UE,其中,所述预定方式为与通过寻呼消息发送所述指定信息的方式不同。
在本发明的一个可选实施例中,所述发送模块设置为按照以下之一所述预定方式发送所述指定信息:通过调度已有下行控制信息DCI发送;通过专用于发送所述指定信息的DCI发送;通过专用于发送所述指定信息的DCI所调度的物理下行共享信道PDSCH或物理上行共享信道PUSCH发送;通过主信息块MIB信息发送;通过专用于发送所述指定信息的信道发送。
在本发明的一个可选实施例中,所述发送模块,设置为通过以下之一方式调度已有DCI发送所述指定信息:通过调度寻呼消息的DCI发送;通过调度UE专有数据的DCI发送。
根据本发明的又一个实施例,提供了一种下行信息的接收装置,应用于UE,包括:接收模块,设置为按照预定方式接收指定信息,其中,所述指定信息包括以下至少之一:系统消 息变更信息、地震和海啸预警系统ETWS通知信息、商业移动告警服务CMAS通知信息、扩展接入控制EAB参数变更通知信息,所述预定方式为与通过寻呼消息接收所述指定信息的方式不同。
在本发明的一个可选实施例中,所述接收模块,设置为按照以下之一所述预定方式接收所述指定信息:通过调度的已有DCI接收;在专用于发送所述指定信息的DCI上接收;在专用于发送所述指定信息的DCI所调度的物理下行共享信道PDSCH或物理上行共享信道PUSCH上接收;通过MIB信息接收;在专用于发送所述指定信息的信道上接收。
在本发明的一个可选实施例中,所述接收模块,设置为按照以下之一方式通过调度已有DCI接收所述指定信息:通过调度的寻呼消息的DCI上接收;通过调度UE专有数据的DCI接收。
通过本发明实施例,采用与通过寻呼消息发送所述指定信息的发送方式不同的预定方式发送现有技术中需要发送给UE的指定信息的技术手段,解决了相关技术中UE需要接收大量重复的不必要寻呼消息等技术问题,从而降低了UE对专有信息接收的影响,以及避免了UE由于接收大量重复的寻呼消息而导致的能耗问题。
附图说明
此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:
图1为根据本发明实施例的下行信息的发送方法的流程图;
图2为根据本发明实施例的下行控制信息的发送装置的结构框图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
对于需要覆盖增强的连接态的UE来说,为了能正确接收寻呼消息,UE需要接收大量重复的调度寻呼消息的控制信息,以及大量重复的寻呼消息本身,对于只支持RF窄带的MTC UE来说,影响了其接收专有信息,如果专有信息在另一个窄带发送的话,另一方面也不利于MTC UE节能。即使寻呼消息采用盲传输的方式,即不使用控制信息调度,但由于寻呼消息本身包含信息较多,TBS较大,仍需要接收大量的重复的寻呼消息。为解决这个问题,本发明实施例为连接态的UE(但不限于处于该状态的UE)重新定义一种寻呼的方式。以下详细说明。
图1为根据本发明实施例的下行信息的发送方法的流程图。如图1所示,该方法包括以下处理步骤S102-S104:
步骤S102,确定需要发送给UE的指定信息,其中,上述指定信息包括以下至少之一: 系统消息变更信息、ETWS通知信息、CMAS通知信息、EAB参数变更通知信息;
步骤S104,将上述指定信息按照预定方式发送给上述UE,其中,上述预定方式为与通过寻呼消息发送上述指定信息的方式不同。
通过上述各个处理步骤,由于可以将现有技术中需要通过寻呼消息发送给UE的指定信息按照与通过寻呼消息发送上述指定信息的方式不同的方式发送上述指定信息,因此,可以解决UE需要接收大量重复的不必要寻呼消息等技术问题,从而降低了UE对专有信息接收的影响,以及避免了UE由于接收大量重复的寻呼消息而导致的能耗问题。
在一个优选实施例中,上述预定方式包括但不限于以下之一:
通过调度已有DCI发送,其中,通过调度已有DCI发送包括以下之一:通过调度寻呼消息的DCI发送;通过调度UE专有数据的DCI发送;该已有DCI可以理解为现有的通信标准中所提及的DCI。
通过上述专用于发送上述指定信息的DCI发送。在一个优选实施例中,可以采用专用P-RNTI对所述专用于发送所述指定信息的DCI的CRC进行加扰或加掩码来指示所述指定信息。在通过上述专用于发送上述指定信息的DCI发送上述指定信息时,上述专用于发送上述指定信息的DCI不存在对应的PDSCH或PUSCH。其中,对于专用P-RNTI可以理解为:与指示寻呼消息的P-RNTI不同的P-RNTI,也可以理解为专用于对上述专用于发送上述指定信息的DCI进行CRC加扰或加掩码来指示上述指定信息的P-RNTI。
通过专用于发送上述指定信息的DCI所调度的PDSCH或PUSCH发送;
通过MIB信息发送,在一个优选实施方式中,可以表现为以下之一实现形式,但不限于此:采用MIB中的空闲比特指示上述指定信息;在MIB中定义用于指示上述指定信息的字段;通过对MIB的CRC码采用不同的序列进行加扰或加掩码来指示不同的上述指定信息;
通过专用于发送上述指定信息的信道发送。
在本实施例的一个优选实施方式中,通过调度已有DCI发送可以通过以下之一方式实现,但不限于此:
在上述已有DCI中增加用于携带上述指定信息的字段;
对上述已有DCI中的指定字段进行重新定义,其中,重新定义后的上述指定字段用于指示上述指定信息;
采用上述已有DCI中的以下之一指示上述指定信息:预留比特、空闲比特、指定字段的空闲状态;
采用不同的P-RNTI对上述已有DCI的CRC码进行加扰或加掩码来指示不同的上述指定信息。
上述系统消息变更信息可以包括一个或者多个工作频带上的系统消息变更信息。
在本实施例中,还提供一种下行信息的发送装置,用于实现上述方法,如图2所示,该装置包括:
确定模块20,设置为确定需要通过寻呼消息发送给用户设备UE的指定信息,其中,所述指定信息包括以下至少之一:系统消息变更信息、地震和海啸预警系统ETWS通知信息、商业移动告警服务CMAS通知信息、EAB参数变更通知信息;
发送模块22,设置为将所述指定信息按照预定方式发送给所述UE,其中,所述预定方式为与通过寻呼消息发送所述指定信息的方式不同。
在本发明的一个可选实施例中,发送模块22设置为按照以下之一所述预定方式发送所述指定信息:通过调度已有下行控制信息DCI发送;通过专用于发送所述指定信息的DCI发送;通过专用于发送所述指定信息的DCI所调度的PDSCH或PUSCH发送;通过MIB信息发送;通过专用于发送所述指定信息的信道发送。
需要说明的是,上述各个模块可以通过软件或硬件来实现,对于后者,可以通过以下方式实现,但不限于此:确定模块20和发送模块22位于同一处理器中;或者,确定模块20和发送模块22分别位于第一处理器和第二处理器中。
本发明实施例还对UE侧进行了改进,本发明实施例提供的一种下行信息的接收方法包括:
UE按照预定方式接收指定信息,其中,所述指定信息包括以下至少之一:系统消息变更信息、地震和海啸预警系统ETWS通知信息、商业移动告警服务CMAS通知信息、EAB参数变更通知信息,所述预定方式为与通过寻呼消息接收所述指定信息的方式不同。
在本发明的一个可选实施例中,所述预定方式包括以下之一:通过调度的已有下行控制信息DCI接收;在专用于发送所述指定信息的DCI上接收;在专用于发送所述指定信息的DCI所调度的PDSCH或PUSCH上接收;通过MIB信息接收;在专用于发送所述指定信息的信道上接收。
在本发明的一个可选实施例中,通过调度的已有DCI上接收包括以下之一:通过调度的寻呼消息的DCI上接收;通过调度UE专有数据的DCI接收。
本发明实施例还提供一种下行信息的接收装置,应用于UE,包括:接收模块,设置为按照预定方式接收指定信息,其中,所述指定信息包括以下至少之一:系统消息变更信息、ETWS通知信息、CMAS通知信息、EAB参数变更通知信息,所述预定方式为与通过寻呼消息接收所述指定信息的方式不同。
在本发明的一个可选实施例中,所述接收模块,设置为按照以下之一所述预定方式接收所述指定信息:
通过调度的已有下行控制信息DCI接收;此处已有DCI是指相关技术中已经存在的DCI。
在专用于发送所述指定信息的DCI上接收;
在专用于发送所述指定信息的DCI所调度的PDSCH或PUSCH上接收;
通过主信息块MIB信息接收;
在专用于发送所述指定信息的信道上接收。
在一个优选实施过程中,接收模块,还设置为按照以下之一方式通过调度已有DCI接收所述指定信息:通过调度的寻呼消息的DCI上接收;通过调度UE专有数据的DCI接收。
正如上面所述,本实施例中涉及到的上述各个模块既可以通过软件来实现,也可以通过相应地硬件来实现,对于后者,可以采用以下方式实现,但不限于此:上述接收模块可以位于处理器中。
为了更好地理解上述实施例,以下结合优选实施例详细说明。需要说明的是,以下实施例中所涉及的指定信息的定义可以为:将系统消息变更信息、ETWS通知信息、CMAS通知信息和EAB参数变更通知信息中的一个或多个定义为指定信息。
实施例一:
在调度寻呼消息的DCI中,包含指定信息。
在调度寻呼消息的DCI中增加指示指定信息的字段。或者对所述DCI中的某些字段进行重新定义来指示指定信息,比如把混合自动重传请求(Hybrid Automatic Repeat Request,简称为HARQ)进程指示字段重新定义为指示指定信息的字段。或者也可以采用调度寻呼消息的DCI中的预留bit或者空余bit或者某些字段的空余状态来指示,比如:采用DCI format 1A中的预留bit来指示,或者HARQ进程号指示字段(3bit),或者PUCCH的传输功率控制(Transmission Power Control,简称为TPC)命令字段的高位bit(1bit)等,或者用MCS域的预留状态指示,实际中不限于这种方式。下面给出具体指示的例子。可以用3bit信息分别代表是否有系统消息变更信息、ETWS通知信息和CMAS通知信息,比如第一个bit如果是“1”,表示系统消息发生变更,“0”表示系统消息没有变更;第二个bit如果是“1”,表示eNB将要发送ETWS消息,即系统信息块(System Information Block,简称为SIB)10和/或SIB11,“0”表示eNB将不会发送ETWS消息;第三个bit如果是“1”,表示有eNB将要发送CMAS消息,即SIB12,“0”表示eNB将不会发送CMAS消息。如果3bit信息为“100”,则表示发生了系统消息变更,且eNB将不会发送ETWS和CMAS消息,UE收到该信息后,会去接收系统消息,而不会去接收ETWS对应的SIB10和SIB11,以及CMAS对应的SIB12。实际应用中不限于这种表示方式。如果UE或者eNB不支持ETWS和/或CMAS,也可以不包含这些信息。比如假设UE或者eNB对这两个功能都不支持,即只需要用一个bit来表示是否发生系统消息变更。所述DCI调度的寻呼消息中的系统消息变更信息、ETWS通知信息和CMAS通知信息可以保留也可以去掉,本实施例不做限制。
进一步地,指定信息中的系统变更信息,可以是一个或者多个工作频带上的系统消息变更信息,在本发明的一个可选实施例中,一个或者多个工作频带为一个或者多个MTC UE的工作窄带。如果系统带宽中有多个工作窄带,多个窄带上都有相应的系统信息(系统信息所 在的窄带数不大于总的工作窄带数),可能需要指示多个窄带上的系统消息是否发生变更。可以用1bit来表示多个窄带上的系统消息是否发生变更,比如所有窄带上的系统消息都未发生变更,则用“0”表示,否则用“1”表示。也可以用多个bit分别表示多个窄带上的系统消息发生变更。比如系统中有5个工作窄带,每个工作窄带上都有系统信息,那么可以用5bit来指示这几个窄带上的系统消息是否发生变更。或者如果5个工作窄带中,只有2个窄带上有系统信息,那么可以用2bit来指示这两个窄带上的系统消息是否发生变更。或者如果5个工作窄带中,虽然每个工作窄带上都有系统信息,但其中有3个窄带上的系统消息是完全相同的,其他2个窄带上的系统消息是完全相同的,那么可以用2bit来指示这2种系统消息是否发生变更。
当系统带宽中有多个工作窄带时,也可以为UE指示多个工作窄带上的指定信息,假设指定信息由3bit来指示,指示5个工作窄带上的指定信息就需要3×5=15个bit,实际应用中不限于这种指示方式。
对于连接态的UE,可以只接收调度寻呼消息的DCI,从该DCI中获取上述指定信息,而不必接收所述DCI调度的寻呼消息才可以获取上述指定信息。
实施例二:
在调度UE的专有数据的DCI中指示指定信息,即在调度UE发送PUSCH或者接收PDSCH的DCI中指示,这样,eNB可以在调度UE发送/接收数据时将指定信息通知给UE。比如在调度UE的专有数据的DCI中增加指示指定信息的字段,或者利用一些预留bit或者空余bit或者某些字段的空余状态来指示,或者对某些已有字段进行重新定义来指示。所述的DCI可以是所有格式的DCI,也可以是部分格式的DCI,比如format1A。指示方法与实施例一类似。
UE接收到调度所述UE的DCI后,根据所述字段来获得指定信息。比如假设用3bit信息分别代表是否有系统消息变更信息、ETWS通知信息和CMAS通知信息,UE接收到所述字段为“000”,则表示未发生系统消息变更、其eNB将不会发送ETWS和CMAS消息,则UE不会去接收系统消息以及SIB10~12。实际应用中不限于这种表示方式。
实施例三
采用不同的P-RNTI来通知指定信息。即调度寻呼消息的DCI的CRC或者在调度UE的专有数据的DCI的CRC采用不同的P-RNTI来加扰或加掩码,来表示指定信息。与实施例一类似,系统信息也可以是多个窄带上的系统信息。所述DCI调度的寻呼消息中的系统消息变更信息、ETWS通知信息和CMAS通知信息可以保留也可以去掉,本发明实施例不做限制。
假设对UE或者eNB不支持ETWS和/或CMAS,只需要支持系统消息变更,那么采用P-RNTI_1对调度寻呼消息的DCI的CRC进行加扰或加掩码表示系统消息未发生变更,采用P-RNTI_2对调度寻呼消息的DCI的CRC进行加扰或加掩码表示系统消息发生变更。UE对DCI的CRC分别采用P-RNTI_1和P-RNTI2进行解扰或解掩码,做CRC校验,判断采用了哪个P-RNTI,来确定是否发生了系统信息变更。本实施例中,加扰或者加掩码的方式可以采用 按比特位做异或的方式,如P-RNTI为16位,CRC也为16位,两者对应位置的bit之间做异或,例如P-RNTI为“0000110100001111”,CRC为“1111001111110011”,那么用该P-RNTI对该CRC加扰之后得到“1111111011111100”。接收方将加扰后的CRC再和P-RNTI按位做异或,就可以得到CRC了。实际应用中不限于这种加扰或者加掩码的方式。
实施例四:
重新定义一个专用的DCI,来通知指定信息。该DCI的CRC采用一个专用的P-RNTI加扰或加掩码(即采用专用P-RNTI加扰或加掩码)。该DCI并没有对应的调度的PDSCH或者PUSCH。比如,假设需要通知系统消息变更信息、通知信息和CMAS通知信息,系统消息变更信息为1bit,ETWS通知信息为1bit,CMAS通知信息为1bit,那么在这个DCI中采用3bit指示这些信息。所述DCI可以只有3bit有用信息,或者也可以有一些冗余bit,冗余bit并未定义,或者也可以用这些冗余bit来指示一些其他的公共信息,本发明实施例不做限制。进一步地,为了不增加UE的盲检测次数,所述DCI的大小(size)可以与现有某些DCI相同,比如和format 1C相等。所述DCI可以在一些预设的子帧上发送,也可以在小区的寻呼时机上进行发送。
连接态的UE在所述预设的子帧上或者小区的寻呼时机上检测所述P-RNTI加扰或加掩码的DCI,根据DCI的内容,得到上述指定信息。本实施例中,加扰或者加掩码的方式可以采用按比特位做异或的方式,但不限于此。
实施例五:
通过一个专用DCI(即专用于发送上述指定信息的DCI)所调度的PDSCH或PUSCH发送上述指定信息,所述专用DCI的CRC采用专用的P-RNTI来加扰或加掩码,所述的DCI可以采用现有的DCI格式,比如format 1C,或者新定义一种DCI格式。所述的专用DCI调度的PDSCH的TBS可以沿用现有的TBS,或者也可以重新定义,本发明实施例不做限制。这样的好处是可以用更多的资源传输小包,码率可以非常低,使得UE能尽快地获取指定信息。所述专用DCI以及调度的PDSCH可以在一些预设的子帧上发送,或者也可以在小区的寻呼时机上进行发送。
连接态的UE在所述预设的子帧上或者小区的寻呼时机上检测采用所述P-RNTI加扰或加掩码的专用DCI,根据DCI获取其调度的PDSCH上加载的上述指定信息。本实施例中,加扰或者加掩码的方式可以采用按比特位做异或的方式,但不限于此。
实施例六:
在MIB中指示指定信息。所述MIB可以是现有的MIB,比如采用MIB中空闲的10bit中的若干bit来指示指定信息,MIB中的这些指示信息会在一个周期内保持不变,比如在一个寻呼周期内保持不变,或者也可以不限于采用寻呼周期,可以是一个新定义的周期值。
或者可以新定义一个MIB,在新MIB中定义一个字段表示指定信息。所述信息MIB中的所述字段会在一个周期内保持不变,比如在一个寻呼周期内保持不变,或者也可以不限于采 用寻呼周期,可以是一个新定义的周期值。或者也可以对所述新MIB的CRC采用不用的扰码进行加扰或加掩码,来指示指定信息,所述的扰码在一个寻呼周期内保持不变,或者也可以不限于采用寻呼周期,可以是一个新定义的周期值。本实施例中,加扰或者加掩码的方式可以采用按比特位做异或的方式,但不限于此。
连接态的UE在所述周期内至少接收一次MIB来获得指定信息。
实施例七:
新定义一个专用信道(即专用于发送所述指定信息的信道),在所述专用信道上传输指定信息。所述信道在预设子帧的预设的符号以及预设的频域位置上发送,比如在子帧#0的后三个符号的中心6个物理资源块(Physical Resource Block,简称为PRB)上,实际中不限于这种方式。其在一个预设周期中包含的信息不变,比如在一个寻呼周期内包含的信息不变。UE会在所述预设周期内的所述子帧上接收所述信道上的信息,以获得上述指定信息。
实施例八:
UE按照预定方式接收指定信息,其中,该指定信息至少包括EAB参数变更通知信息;预定方式为与通过寻呼消息接收所述指定信息的方式不同。其中该预定方式可以为实施例一至实施例七中描述的至少之一预定方式,即该预定方式可以为以下至少之一:通过调度的已有下行控制信息DCI接收;在专用于发送所述指定信息的DCI上接收;在专用于发送所述指定信息的DCI所调度的PDSCH或PUSCH上接收;通过MIB信息接收;在专用于发送所述指定信息的信道上接收。
所述EAB参数变更通知信息可以是1bit信息,比如“0”表示EAB参数未发生变更,“1”表示EAB参数发生了变更,如果UE收到EAB参数变更通知信息为“1”,UE将接收变更的EAB参数信息。在现有的LTE系统中,EAB参数信息包含在SIB14中,如果UE接收到EAB参数变更通知信息为“1”,那么UE会重新去接收SIB14。在未来的实际系统中,EAB参数也可以包含在新定义的SIB中。
在另外一个实施例中,还提供了一种软件,该软件用于执行上述实施例及优选实施方式中描述的技术方案。
在另外一个实施例中,还提供了一种存储介质,该存储介质中存储有上述软件,该存储介质包括但不限于:光盘、软盘、硬盘、可擦写存储器等。
显然,本领域的技术人员应该明白,本发明的各模块或各步骤可以用通用的计算装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,可选地,它们可以用计算装置可执行的程序代码来实现,从而,可以将它们存储在存储装置中由计算装置来执行,并且在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤,或者将它们分别制作成各个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
工业实用性
本发明实施例提供的上述技术方案,可以应用于行信息的发送过程中,采用与通过寻呼消息发送所述指定信息的发送方式不同的预定方式发送现有技术中需要发送给UE的指定信息的技术手段,解决了相关技术中UE需要接收大量重复的不必要寻呼消息等技术问题,从而降低了UE对专有信息接收的影响,以及避免了UE由于接收大量重复的寻呼消息而导致的能耗问题。

Claims (17)

  1. 一种下行信息的发送方法,包括:
    确定需要发送给用户设备UE的指定信息,其中,所述指定信息包括以下至少之一:系统消息变更信息、地震和海啸预警系统ETWS通知信息、商业移动告警服务CMAS通知信息、扩展接入控制EAB参数变更通知信息;
    将所述指定信息按照预定方式发送给所述UE,其中,所述预定方式为与通过寻呼消息发送所述指定信息的方式不同。
  2. 根据权利要求1所述的方法,其中,所述预定方式包括以下之一:
    通过调度已有下行控制信息DCI发送;
    通过专用于发送所述指定信息的DCI发送;
    通过专用于发送所述指定信息的DCI所调度的物理下行共享信道PDSCH或物理上行共享信道PUSCH发送;
    通过主信息块MIB信息发送;
    通过专用于发送所述指定信息的信道发送。
  3. 根据权利要求2所述的方法,其中,通过调度已有DCI发送包括以下之一:
    通过调度寻呼消息的DCI发送;
    通过调度UE专有数据的DCI发送。
  4. 根据权利要求2所述的方法,其中,通过调度已有DCI发送包括以下之一:
    在所述已有DCI中增加用于携带所述指定信息的字段;
    对所述已有DCI中的指定字段进行重新定义,其中,重新定义后的所述指定字段用于指示所述指定信息;
    采用所述已有DCI中的以下之一指示所述指定信息:预留比特、空闲比特、指定字段的空闲状态;
    采用不同的寻呼无线网络临时标识P-RNTI对所述已有DCI的循环冗余校验CRC进行加扰或加掩码来指示不同的所述指定信息。
  5. 根据权利要求2所述的方法,其中,通过专用于发送所述指定信息的DCI发送,包括:
    采用专用P-RNTI对所述专用于发送所述指定信息的DCI的CRC进行加扰或加掩码来指示所述指定信息。
  6. 根据权利要求2所述的方法,其中,在通过所述专用于发送所述指定信息的DCI发送所述指定信息时,所述专用于发送所述指定信息的DCI不存在对应的PDSCH或物理上行共 享信道PUSCH。
  7. 根据权利要求2所述的方法,其中,通过MIB信息发送包括以下之一:
    采用MIB中的空闲比特指示所述指定信息;
    在MIB中定义用于指示所述指定信息的字段;
    通过对MIB的CRC采用不同的序列进行加扰或加掩码来指示不同的所述指定信息。
  8. 根据权利要求1至7中任一项所述的方法,其中,所述系统消息变更信息包括:
    一个或者多个工作频带上的系统消息变更信息。
  9. 一种下行信息的接收方法,其中,包括:
    用户设备UE按照预定方式接收指定信息,其中,所述指定信息包括以下至少之一:系统消息变更信息、地震和海啸预警系统ETWS通知信息、商业移动告警服务CMAS通知信息、扩展接入控制EAB参数变更通知信息,所述预定方式为与通过寻呼消息接收所述指定信息的方式不同。
  10. 根据权利要求9所述的方法,其中,所述预定方式包括以下之一:
    通过调度的已有下行控制信息DCI接收;
    在专用于发送所述指定信息的DCI上接收;
    在专用于发送所述指定信息的DCI所调度的物理下行共享信道PDSCH或物理上行共享信道PUSCH上接收;
    通过主信息块MIB信息接收;
    在专用于发送所述指定信息的信道上接收。
  11. 根据权利要求10所述的方法,其中,通过调度的已有DCI上接收包括以下之一:
    通过调度的寻呼消息的DCI上接收;
    通过调度UE专有数据的DCI接收。
  12. 一种下行信息的发送装置,包括:
    确定模块,设置为确定需要发送给用户设备UE的指定信息,其中,所述指定信息包括以下至少之一:系统消息变更信息、地震和海啸预警系统ETWS通知信息、商业移动告警服务CMAS通知信息、扩展接入控制EAB参数变更通知信息;
    发送模块,设置为将所述指定信息按照预定方式发送给所述UE,其中,所述预定方式为与通过寻呼消息发送所述指定信息的方式不同。
  13. 根据权利要求12所述的装置,其中,所述发送模块设置为按照以下之一所述预定方式发送所述指定信息:
    通过调度已有下行控制信息DCI发送;
    通过专用于发送所述指定信息的DCI发送;
    通过专用于发送所述指定信息的DCI所调度的物理下行共享信道PDSCH或物理上行共享信道PUSCH发送;
    通过主信息块MIB信息发送;
    通过专用于发送所述指定信息的信道发送。
  14. 根据权利要求13所述的装置,其中,所述发送模块,设置为通过以下之一方式调度已有DCI发送所述指定信息:
    通过调度寻呼消息的DCI发送;
    通过调度UE专有数据的DCI发送。
  15. 一种下行信息的接收装置,应用于用户设备UE,所述装置包括:
    接收模块,设置为按照预定方式接收指定信息,其中,所述指定信息包括以下至少之一:系统消息变更信息、地震和海啸预警系统ETWS通知信息、商业移动告警服务CMAS通知信息、扩展接入控制EAB参数变更通知信息,所述预定方式为与通过寻呼消息接收所述指定信息的方式不同。
  16. 根据权利要求15所述的装置,其中,所述接收模块,设置为按照以下之一所述预定方式接收所述指定信息:
    通过调度的已有下行控制信息DCI接收;
    在专用于发送所述指定信息的DCI上接收;
    在专用于发送所述指定信息的DCI所调度的物理下行共享信道PDSCH或物理上行共享信道PUSCH上接收;
    通过主信息块MIB信息接收;
    在专用于发送所述指定信息的信道上接收。
  17. 根据权利要求16所述的装置,其中,所述接收模块,设置为按照以下之一方式通过调度已有DCI接收所述指定信息:
    通过调度的寻呼消息的DCI上接收;
    通过调度UE专有数据的DCI接收。
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