WO2016107169A1 - 重复发送处理方法、装置及节点 - Google Patents

重复发送处理方法、装置及节点 Download PDF

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Publication number
WO2016107169A1
WO2016107169A1 PCT/CN2015/085797 CN2015085797W WO2016107169A1 WO 2016107169 A1 WO2016107169 A1 WO 2016107169A1 CN 2015085797 W CN2015085797 W CN 2015085797W WO 2016107169 A1 WO2016107169 A1 WO 2016107169A1
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node
channel
physical channel
physical
message
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PCT/CN2015/085797
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English (en)
French (fr)
Inventor
刘锟
戴博
鲁照华
夏树强
陈宪明
石靖
方惠英
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中兴通讯股份有限公司
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Publication of WO2016107169A1 publication Critical patent/WO2016107169A1/zh

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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

Definitions

  • the present invention relates to the field of communications, and in particular to a method, an apparatus, and a node for repeating transmission processing.
  • MTC UE Machine Type Communication (MTC) User Terminal (MTC UE), also known as M2M (Machine to Machine, Machine to Machine, M2M) user communication equipment, is the current Internet of Things.
  • M2M devices deployed on the market are mainly based on the Global System of Mobile Communication (GSM) system.
  • GSM Global System of Mobile Communication
  • LTE Long Term Evolution
  • LTE-A the evolution of LTE
  • M2M multi-class data services based on LTE/LTE-A will also be more attractive. Only when the cost of the LTE-M2M device can be lower than the MTC terminal of the GSM system can the M2M service be truly transferred from the GSM to the LTE system.
  • the main alternative methods for reducing the cost of the MTC user terminal include: reducing the number of terminal receiving antennas, reducing the baseband processing bandwidth of the terminal, reducing the peak rate supported by the terminal, adopting a half-duplex mode, and the like.
  • the cost reduction means that the performance is degraded.
  • the demand for the LTE/LTE-A system cell coverage cannot be reduced. Therefore, the MTC terminal with low-cost configuration needs to take some measures to meet the coverage performance requirements of the existing LTE terminal.
  • the MTC terminal may be located in a basement, a corner, etc., and the scene is worse than that of a normal LTE UE. In order to compensate for the decrease in coverage caused by the penetration loss, some MTC UEs need higher performance improvement. Therefore, it is necessary to perform uplink and downlink channel coverage enhancement of some MTC UEs for such a scenario.
  • the embodiment of the present invention provides a method and an apparatus for repeatedly transmitting a message, so as to at least solve the problem in the related art, how to implement channel coverage enhancement of a part of user equipment UE in a special scenario.
  • a method for performing a repetitive transmission process includes: determining an application scenario of a message transmitted by a physical channel and/or a physical channel; and transmitting a configuration to the second node in the determined application scenario a message, wherein the second node determines the physical channel and/or the at least according to the configuration message The number of repeated transmissions of messages carried by the physical channel.
  • the application scenario includes a first application scenario, where the first application scenario includes one of: an initial random access procedure of the second node; and a contention-based random access procedure of the second node
  • the second node transitions from the radio resource control idle state RRC_IDLE to establish a radio resource control connection state RRC_CONNECTED with the first node; or the application scenario includes a second application scenario, where the second application scenario includes: The second node and the first node have established a radio resource control RRC connection state.
  • the physical channel includes at least one of: a physical random access channel; a physical uplink shared channel; a physical uplink control channel; a physical downlink control shared channel; a physical downlink control channel; an enhanced physical downlink control channel;
  • the bearer message includes at least one of the following: a random access response message; a radio resource control RRC connection re-establishment request message; a radio resource control RRC connection setup request message; a random access conflict resolution message.
  • the configuration message carries the quantity information of the second node channel enhancement level, and the second node repeatedly sends the level index information; wherein the second node channel enhancement level quantity information is used from one Selecting, in a plurality of mapping tables, a mapping table supporting the number of the second node channel enhancement levels, wherein the one or more mapping tables include one or more messages of the physical channel and/or physical channel carrying Repetitively transmitting the correspondence between the level and the channel enhancement level; the second node repeatedly transmitting the level index information for determining, in the selected mapping table, that the second node sends the physical channel and/or the physical channel bearer The number of times the message was sent repeatedly.
  • the level index is repeatedly transmitted according to the message carried by the physical channel and/or the physical channel. Determining the number of repeated transmissions; when the second node repeatedly transmits a level index indicating the number of repeated transmissions of messages carried by the at least two physical channels and/or physical channels, according to the physical channel sent to the second node and/or The selection information of the number of repeated transmissions of the message carried by the physical channel determines the number of repeated transmissions.
  • the channel enhancement level comprises one of: coverage enhancement level; physical channel repetition transmission level; physical random access channel coverage enhancement level; physical random access channel repetition transmission level.
  • the maximum value of the number of channel enhancement levels corresponding to the frequency division duplex FDD mode is different from the maximum value of the number of channel enhancement levels corresponding to the time division duplex TDD mode.
  • the method further includes: sending, to the second node, the configuration message An adjustment message indicating that the number of repeated transmissions is adjusted.
  • the adjustment message carries the following information: an adjustment step size for adjusting the number of repeated transmissions, and an adjustment level for adjusting the number of repeated transmissions, wherein the product of the adjustment step size and the adjustment level Indicates the number of repeated transmissions of the adjustment.
  • a repetitive transmission processing apparatus including: a first determining module, configured to determine an application scenario of a message transmitted by a physical channel and/or a physical channel; a first sending module, setting And sending, to the second node, a configuration message, in the determined application scenario, where the second node determines, according to the configuration message, the number of times of repeated transmission of the physical channel and/or the message carried by the physical channel.
  • the first sending module is further configured to send, when the application scenario is that the second node and the first node have established a radio resource control RRC connection state, to send to the second node, An adjustment message that is adjusted by the number of repeated transmissions indicated by the configuration message.
  • the second node comprises at least one of: one or more terminals; one or more terminal groups.
  • the terminal comprises at least one of: a terminal H2H UE communicating with a person, a terminal M2M UE communicating with a machine, a machine type communication terminal MTC UE, and a terminal D2D UE communicating with the device.
  • a terminal H2H UE communicating with a person
  • a terminal M2M UE communicating with a machine
  • a machine type communication terminal MTC UE communicating with the device.
  • a terminal D2D UE communicating with the device.
  • a node comprising the apparatus of any of the above.
  • the node comprises at least one of the following: a macro base station, a micro base station, a pico base station, a femto base station, a low power node, and a relay station.
  • the application scenario of the message that is sent by the physical channel and/or the physical channel is determined by using the embodiment of the present invention; the configuration message is sent to the second node in the determined application scenario, where the second node is at least according to the
  • the configuration message determines the number of repeated transmissions of the information carried by the physical channel and/or the physical channel, and solves the problem of how to implement channel coverage enhancement of some user equipments in a special scenario in the related art, thereby achieving fine control.
  • the channel enhancement level of different channels of different terminals saves the overhead of time-frequency resources and improves the spectrum utilization of the system.
  • FIG. 1 is a flowchart of a method of repeating transmission processing according to an embodiment of the present invention
  • FIG. 2 is a block diagram showing the structure of a repetitive transmission processing apparatus according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram of a node in accordance with an embodiment of the present invention.
  • FIG. 1 is a flowchart of a repeated transmission processing method according to an embodiment of the present invention. As shown in FIG. 1, the flow includes the following steps:
  • Step S102 determining an application scenario of sending a message carried by a physical channel and/or a physical channel
  • Step S104 Send a configuration message to the second node in the determined application scenario, where the second node determines, according to the configuration message, the number of repeated transmissions of the message carried by the physical channel and/or the physical channel.
  • the number of repeated transmissions of the message for determining the physical channel and/or the physical channel bearer is sent to the second node according to different scenarios, and the related art has how to implement the channel of the user equipment in the special scenario. Covering the enhanced problem, the channel enhancement level of different channels of different terminals is refined, which saves the overhead of time-frequency resources and improves the spectrum utilization of the system.
  • the foregoing application scenario includes a first application scenario, where the first application scenario includes one of: an initial random access procedure of the second node; a second node based on a contention random access procedure; and the second node from the wireless resource Controlling the idle state RRC_IDLE transitions to establish a radio resource control connection state RRC_CONNECTED with the first node; the application scenario includes a second application scenario, where the second application scenario includes: the second node and the first node have established a radio resource control RRC connection state .
  • the physical channel includes at least one of the following: a physical random access channel (Physical Random Access Channel, PRACH), a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), and a physical downlink.
  • PRACH Physical Random Access Channel
  • PUSCH physical uplink shared channel
  • PUCCH physical uplink control channel
  • the message carried by the physical channel includes at least one of the following: a random access response message; a radio resource control RRC connection re-establishment request message; a radio resource control RRC connection setup request message; a random access conflict resolution message.
  • the second node determines the number of repeated transmissions of the message carried by the physical channel and/or the physical channel according to the configuration message
  • the number of repeated transmissions is determined according to the information carried in the received configuration message
  • multiple processing manners may be used, for example, configuring the message.
  • the second node channel enhancement level quantity information is used to select to support the second node channel enhancement from one or more mapping tables A mapping table of the number of levels, wherein one or more mapping tables include repeated transmission levels and channel enhancement levels of messages carried by one or more physical channels and/or physical channels Another correspondence relationship; the second node repeatedly sends the level index information for determining, in the selected mapping table, the number of repeated transmissions of the message that the second node sends the physical channel and/or the physical channel bearer.
  • the second node repeating the transmission level index may indicate a message carried by one physical channel and/or a physical channel, and may also indicate a plurality of (at least two) physical channel and/or a message carried by the physical channel, which are respectively described below.
  • the second node When the second node repeatedly sends the level index indicating the number of repeated transmissions of the message carried by the physical channel and/or the physical channel, determining the number of repeated transmissions according to the repeated transmission level index of the message carried by the physical channel and/or the physical channel; When the two-node repeated transmission level index indicates the number of repeated transmissions of the message carried by the at least two physical channels and/or the physical channel, the selection information of the number of repeated transmissions of the message carried by the physical channel and/or the physical channel transmitted to the second node Determine the number of repeated transmissions.
  • the foregoing channel enhancement level may include one of the following: an coverage enhancement level; a physical channel repeated transmission level; a physical random access channel coverage enhancement level; and a physical random access channel repeated transmission level.
  • the maximum value of the number of channel enhancement levels corresponding to the frequency division duplex FDD mode may be different from the maximum value of the number of channel enhancement levels corresponding to the time division duplex TDD mode, for example, the maximum number of channel enhancement levels in the FDD mode. The value may be greater than the maximum of the number of channel enhancement levels corresponding to the TDD mode.
  • the method further includes: sending, to the second node, an adjustment message for adjusting the number of repeated transmissions indicated by the configuration message.
  • the adjustment message carries the following information: an adjustment step for adjusting the number of repeated transmissions, and an adjustment level for adjusting the number of repeated transmissions, wherein the product of the adjustment step size and the adjustment level indicates the repeated transmission of the adjustment. frequency.
  • a repetitive transmission processing device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 2 is a block diagram showing the structure of a repetitive transmission processing apparatus according to an embodiment of the present invention. As shown in FIG. 2, the apparatus includes a first determining module 22 and a first transmitting module 26, which will be described below.
  • the first determining module 22 is configured to determine an application scenario of the message that is sent by the physical channel and/or the physical channel.
  • the first sending module 26 is connected to the first determining module 22, and is configured to be in the determined application scenario.
  • the node sends a configuration message, where the second node determines, according to the configuration message, the number of repeated transmissions of the message carried by the physical channel and/or the physical channel.
  • the foregoing first sending module 26 may be further configured to: when the application scenario is that the second node and the first node have established a radio resource control RRC connection state, send, to the second node, The number of repeated transmissions is adjusted to adjust the message.
  • the foregoing second node may include at least one of: one or more terminals; one or more terminal groups.
  • the terminal includes at least one of the following: a Human To Human User Equipment (H2H UE), a Machine To Machine User Equipment (M2M UE), and a machine type communication terminal (Machine) Type Communication User Equipment (MTC UE), Device To Device User Equipment (D2D UE).
  • H2H UE Human To Human User Equipment
  • M2M UE Machine To Machine User Equipment
  • Machine Machine Type Communication User Equipment
  • D2D UE Device To Device User Equipment
  • the node 30 includes the repeated transmission processing device 32 of any of the above.
  • the foregoing node may include at least one of the following: a macro base station, a micro base station, a pico base station, a femto base station, a low power node, and a relay station.
  • a channel enhancement level indication method by which the enhancement level (repeated transmission times) of different channels of different terminals can be finely controlled, thereby saving time and frequency resource overhead and improving the system.
  • Spectrum utilization includes: the number of repeated transmissions of the message carried by the physical channel and/or the physical channel is determined by using different methods according to the application scenario.
  • the number of times of repeated transmission of the message carried by the physical channel and/or the physical channel is determined by at least the configuration information of the first class level (the information carried by the configuration message);
  • the number of repeated transmissions of the message carried by the physical channel and/or the physical channel is determined by at least the first type of configuration information and the first type of adjustment information (the information carried by the adjustment message).
  • the first type of level may be one of the following: coverage enhancement level; physical channel repetition transmission level; physical random access channel coverage enhancement level; physical random access channel repeated transmission level.
  • the configuration information of the first type of the foregoing level may include at least one of the following: the quantity information of the first type of the first type of node configuration, and the index information of the first type of the first type of node configuration.
  • the maximum value of the first type of level that the first type of node can be configured may be different.
  • the maximum value of the first type of level that the first type of node can configure in the FDD mode is greater than the TDD mode.
  • the foregoing first application scenario may include at least one of the following: an initial random access procedure; a contention-based random access procedure; and the second type of node transitions from a radio resource management idle state (RRC_IDLE) to establishing with a first type of node. Radio resource management connection status (RRC_CONNECTED).
  • RRC_IDLE radio resource management idle state
  • RRC_CONNECTED Radio resource management connection status
  • the message carried by the physical channel and/or the physical channel may include at least one of the following: a physical uplink shared channel, a physical uplink control channel, a physical downlink control shared channel, a physical downlink control channel, and an enhanced physical downlink control channel. a random access response message; an RRC connection re-establishment request message; an RRC connection setup request message; a random access conflict resolution message;
  • the number of times the repeated transmission of the message carried by the physical channel and/or the physical channel is determined by at least the configuration information of the first type of class may include: predefining one or more physical channels and/or physical channel bearers. a repeating transmission level of the message and a mapping table of the first class level; according to the quantity information of the first class level in the configuration of the first class level, selecting a mapping table supporting the number of the first class level from the mapping table; In the mapping table, determining a repeated transmission level index of a message carried by the physical channel and/or the physical channel according to the index of the first class level; determining the physical channel and/or according to the repeated transmission level index of the message carried by the physical channel and/or the physical channel The number of repeated transmissions of messages carried by the physical channel.
  • the number of repeated transmissions of the message carried by the physical channel and/or the physical channel which may include at least one of the following: when the repeated transmission level index indicates a physical When the number of repeated transmissions of the message carried by the channel and/or the physical channel is determined, the number of repeated transmissions is determined according to the repeated transmission level index of the message carried by the physical channel and/or the physical channel; when the repeated transmission level index indicates multiple physical channels and/or physics When the number of repeated transmissions of the message carried by the channel, the selection information of the number of times of repeated transmission of the message carried by the physical channel and/or the physical channel is indicated by the first type of node in the configuration information of the first class level or sent to the second by signaling. Class node.
  • the second type of application scenario may include at least one of the following: after the second type of node establishes a radio resource management (Radio Resource Control, referred to as RRC) connection state with the first type of node; in the second type of application scenario, the physical channel and/or
  • the message carried by the physical channel may include at least one of the following: a physical random access channel (Physical Random Access Channel) (PRACH), a physical uplink shared channel (PUSCH), and a physical uplink control channel (Physical Uplink Control Channel, PUCCH).
  • PRACH Physical Random Access Channel
  • PUSCH physical uplink shared channel
  • PUCCH Physical Uplink Control Channel
  • the number of times the repeated transmission of the message carried by the physical channel and/or the physical channel is determined by at least the first type of configuration information and the first type of adjustment information may include: predefining one or more a repeating transmission level of the message carried by the physical channel and/or the physical channel and a mapping table of the first class level; selecting the support form from the mapping table defined above according to the quantity information of the first class level in the configuration of the first class level a mapping table of the number of levels; in the selected mapping table, determining a repeated transmission level index of a message carried by the physical channel and/or the physical channel according to the index of the first class level; carrying according to the physical channel and/or the physical channel The repeated transmission level index of the message determines the number of repeated transmissions of the message carried by the physical channel and/or the physical channel; The number of repeated transmissions of the message carried by the physical channel and/or the physical channel is adjusted by the first type of adjustment information, wherein the first type of adjustment information is for determining the number of
  • the foregoing first type of adjustment information may include the following information: determining an adjustment step of the number of repeated transmissions of messages carried by the physical channel and/or the physical channel, Step; determining a message carried by the physical channel and/or the physical channel.
  • the physical channel includes at least one of a physical channel and/or a message carried by the physical channel in the second type of application scenario; and when the second type of node receives the unicast to send the first type of hierarchical information, the first type according to the indication
  • the level information is updated; when the second type of node receives the repeated transmission level information of the unicast transmission physical channel and/or the message carried by the physical channel, the level information is updated according to the repeated transmission level information indicated by the unicast node.
  • the system configuration indication may include at least one of the following: predefined by the standard; predefined by the network; configured by the standard; configured by the network; configured by the network upper layer.
  • the first type of node may be at least one of the following: a macro base station, a micro base station, a picocell, a femtocell, a home base station, a low power node (LPN), and a relay station ( Relay).
  • the second type of node may be at least one of: one or more terminals; one or more terminal groups.
  • the terminal may be at least one of the following: a Human To Human User Equipment (H2H UE), a Machine To Machine User Equipment (M2M UE), and a machine type communication terminal ( Machine Type Communication User Equipment (MTC UE), Device To Device User Equipment (D2D UE).
  • H2H UE Human To Human User Equipment
  • M2M UE Machine To Machine User Equipment
  • MTC UE Machine Type Communication User Equipment
  • D2D UE Device To Device User Equipment
  • the coverage enhancement enhanced MTC UEs are divided into multiple coverage enhancement levels (CELs) according to different coverage enhancement target values.
  • CELs coverage enhancement levels
  • three coverage enhancement levels are configured in the system. , including CEL0, CEL1, CEL2.
  • the UE1 is an MTC UE that needs coverage enhancement, and the coverage enhancement level of the UE1 is CEL1, and the UE1 is in the scenario of the initial access system.
  • the UE1 first establishes downlink synchronization with a base station in the FDD LTE system (for example, the base station is eNB1), and obtains system information.
  • the UE1 learns from the system information that three CELs are supported in the system, namely, CEL0 and CEL1. CEL2.
  • the FDD LTE system pre-defines a mapping table of repeated transmission levels and coverage enhancement levels of messages carried by multiple physical channels and/or physical channels.
  • the UE1 selects a mapping table supporting three CELs from the mapping table, for example, Table1.
  • the UE1 finds the repeated transmission level of the message carried by the physical channel and/or the physical channel required by the initial random access system procedure corresponding to the CEL1.
  • the message carried by the physical channel and/or the physical channel required by the process of the initial random access system may include at least one of the following: a physical random access channel (Physical Random Access Channel, PRACH for short), and a physical uplink shared channel (Physical) Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), Physical Downlink Shared Channel (PDSCH), Physical Downlink Control Channel (Physical Downlink Control Channel) PDCCH), an Enhanced Physical Downlink Control Channel (EPDCCH); a random access response message; an RRC connection re-establishment request message; an RRC connection setup request message; a random access conflict resolution message.
  • PRACH Physical Random Access Channel
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • PDCCH Physical Downlink Control Channel
  • the repeated transmission level of the message carried by each physical channel and/or the physical channel is limited to only one repeated transmission number, and the UE1 further knows the number of repeated transmissions.
  • the UE1 completes the initial random access procedure according to the number of repeated transmissions of the message carried by the learned physical channel and/or the physical channel, and according to a predefined process.
  • the repeated transmission level of the message defined by the physical channel and/or the physical channel in the system may correspond to multiple repeated transmission times, and the eNB1 sends the system information or sends the unicast signaling to the UE1 to select which repeated transmission.
  • the number of times the following is an example.
  • all the UEs (including the UE1) that receive the system information need to configure the message carried by the physical channel and/or the physical channel according to the repetition number indicated by the eNB1; when the eNB1 sends the signal through the unicast signaling, Then, only UE1 needs to configure the message carried by the physical channel and/or the physical channel according to the number of repetitions indicated by eNB1.
  • the MTC UEs that need to be covered by the coverage enhancement are divided into multiple coverage enhancement levels (CELs) according to different coverage enhancement target values. In this embodiment, at most three coverage enhancement levels are configured in the system. , including CEL0, CEL1, CEL2.
  • the UE1 learns from the serving base station in the TDD LTE system (for example, the base station is eNB1) that two CELs are supported in the system, which are CEL0 and CEL1, respectively.
  • UE1 is an MTC UE that needs coverage enhancement, and the coverage enhancement level of UE1 is CEL1, and UE1 is in transition from radio resource management idle state (RRC_IDLE) to radio resource management connection state (RRC_CONNECTED);
  • RRC_IDLE radio resource management idle state
  • RRC_CONNECTED radio resource management connection state
  • the TDD LTE system pre-defines a mapping table of repeated transmission levels and coverage enhancement levels of messages carried by multiple physical channels and/or physical channels.
  • UE1 selects a mapping table supporting two CELs from the mapping table, for example, Table2;
  • the UE1 finds the repeated transmission level of the message carried by the physical channel and/or the physical channel required for the transition from the radio resource management idle state (RRC_IDLE) to the radio resource management connection state (RRC_CONNECTED) corresponding to the CEL1.
  • the message carried by the physical channel and/or the physical channel required by the initial random access system process may include at least one of the following: a PRACH, a PUSCH, a physical uplink control channel, a PUCCH, a PDSCH, a PDCCH, an EPDCCH, and a random access response message.
  • the RRC connection re-establishment request message, the RRC connection setup request message, and the random access conflict resolution message may include at least one of the following: a PRACH, a PUSCH, a physical uplink control channel, a PUCCH, a PDSCH, a PDCCH, an EPDCCH, and a random access response message.
  • the repeated transmission level of the message carried by each physical channel and/or the physical channel is limited to only one repeated transmission number, and the UE1 further knows the number of repeated transmissions.
  • the UE1 completes the transition from the radio resource management idle state (RRC_IDLE) to the radio resource management connection state (RRC_CONNECTED) according to a predefined flow.
  • the MTC UEs that need to be covered by the coverage enhancement are divided into multiple coverage enhancement levels (CELs) according to different coverage enhancement target values. In this embodiment, at most three coverage enhancement levels are configured in the system. , including CEL0, CEL1, CEL2.
  • the UE1 learns from the serving base station in the TDD LTE system (for example, the base station is eNB1) that two CELs are supported in the system, which are CEL0 and CEL1, respectively.
  • UE1 is an MTC UE that needs coverage enhancement, and the coverage enhancement level of UE1 is CEL1, UE1 is in the radio resource management connection state (RRC_CONNECTED) and has a service to be sent;
  • RRC_CONNECTED radio resource management connection state
  • the TDD LTE system pre-defines a mapping table of repeated transmission levels and coverage enhancement levels of messages carried by multiple physical channels and/or physical channels.
  • the UE1 selects a mapping table supporting two CELs from the mapping table, for example, Table 2.
  • the UE1 finds the repeated transmission level of the message carried by the physical channel and/or the physical channel required for the service transmission corresponding to the CEL1.
  • the message carried by the physical channel and/or the physical channel required for the service transmission may include at least one of the following: PRACH, PUSCH, PUCCH, PDSCH, PDCCH, and EPDCCH.
  • the repeated transmission level of the message carried by each physical channel and/or the physical channel is limited to only one type of repeated transmission, and the UE1 is aware of the repeated transmission level of the message carried by the physical channel and/or the physical channel required for the service transmission. After that, the number of repeated transmissions is known.
  • the UE1 Before receiving the adjustment information of the number of repeated transmissions of the PUSCH, for example, the UE1 needs to update the number of repeated transmissions of the PUSCH according to the adjustment information.
  • the UE 1 completes the service transmission according to the predetermined procedure according to the number of repeated transmissions of the message carried by the learned physical channel and/or the physical channel and the number of repeated transmissions of the PUSCH after the update.
  • modules or steps of the embodiments of the present invention can be implemented by a general computing device, which can be concentrated on a single computing device or distributed in multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from The steps shown or described are performed sequentially, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.

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Abstract

本发明公开了一种重复发送处理方法、装置及节点，其中，该方法包括：确定发送物理信道和/或物理信道承载的消息的应用场景；在确定的应用场景中向第二节点发送配置消息，其中，第二节点至少根据配置消息确定物理信道和/或物理信道承载的消息的重复发送次数，解决了相关技术中，存在如何实现特殊场景下部分用户设备UE信道覆盖增强的问题，进而达到了精细化控制不同终端的不同信道的信道增强级别，节省了时频资源的开销，提高了***频谱利用率的效果。

Description

重复发送处理方法、装置及节点 技术领域
本发明涉及通信领域，具体而言，涉及一种重复发送处理方法、装置及节点。
背景技术
机器类型通信(Machine Type Communication，简称为MTC)用户终端(MTC User Equipment，简称MTC UE)，又称M2M(Machine to Machine，机器到机器，简称为M2M)用户通信设备，是现阶段物联网的主要应用形式。低功耗低成本是其可大规模应用的重要保障。目前市场上部署的M2M设备主要基于全球移动通信GSM(Global System of Mobile communication，简称为GSM)***。近年来，由于长期演进LTE(Long Term Evolution，简称为LTE)/LTE-A(LTE的后续演进)的频谱效率的提高，越来越多的移动运营商选择LTE/LTE-A作为未来宽带无线通信***的演进方向。基于LTE/LTE-A的M2M多种类数据业务也将更具吸引力。只有当LTE-M2M设备的成本能做到比GSM***的MTC终端低时，M2M业务才能真正从GSM转到LTE***上。
目前对于降低MTC用户终端成本的主要备选方法包括：减少终端接收天线的数目、降低终端基带处理带宽、降低终端支持的峰值速率、采用半双工模式等等。然而成本的降低意味着性能的下降，对于LTE/LTE-A***小区覆盖的需求是不能降低的，因此采用低成本配置的MTC终端需要采取一些措施才能达到现有LTE终端的覆盖性能需求。另外，MTC终端可能位于地下室、墙角等位置，所处场景要比普通LTE UE恶劣。为了弥补穿透损耗导致的覆盖下降，部分MTC UE需要更高的性能提升，因此针对这种场景进行部分MTC UE的上下行信道覆盖增强是必要的。
因此，在相关技术中，存在如何实现特殊场景下部分用户设备UE信道覆盖增强的问题。
发明内容
本发明实施例提供了一种重复发送处理方法及装置，以至少解决相关技术中，存在如何实现特殊场景下部分用户设备UE信道覆盖增强的问题。
根据本发明实施例的一个方面，提供了一种重复发送处理方法，包括：确定发送物理信道和/或物理信道承载的消息的应用场景；在确定的所述应用场景中向第二节点发送配置消息，其中，所述第二节点至少根据所述配置消息确定所述物理信道和/或所 述物理信道承载的消息的重复发送次数。
优选地，所述应用场景包括第一应用场景，其中，所述第一应用场景包括以下之一：所述第二节点的初始随机接入过程；所述第二节点基于竞争的随机接入过程；所述第二节点从无线资源控制空闲状态RRC_IDLE转变到与第一节点建立无线资源控制连接状态RRC_CONNECTED；或者，所述应用场景包括第二应用场景，其中，所述第二应用场景包括：所述第二节点与第一节点已经建立无线资源控制RRC连接状态。
优选地，所述物理信道包括以下至少之一：物理随机接入信道；物理上行共享信道；物理上行控制信道；物理下行控共享信道；物理下行控制信道；增强物理下行控制信道；所述物理信道承载的消息包括以下至少之一：随机接入响应消息；无线资源控制RRC连接重新建立请求消息；无线资源控制RRC连接建立请求消息；随机接入冲突解决消息。
优选地，所述配置消息携带有所述第二节点信道增强级别的数量信息，以及所述第二节点重复发送等级索引信息；其中，所述第二节点信道增强级别的数量信息用于从一个或多个映射表格中选择支持所述第二节点信道增强级别的数量的映射表格，其中，所述一个或多个映射表格包括一个或多个所述物理信道和/或物理信道承载的消息的重复发送等级与信道增强级别的对应关系；所述第二节点重复发送等级索引信息用于在选择的所述映射表格中，确定所述第二节点发送所述物理信道和/或物理信道承载的消息的重复发送次数。
优选地，当所述第二节点重复发送等级索引指示一种物理信道和/或物理信道承载的消息的重复发送次数时，根据所述物理信道和/或物理信道承载的消息的重复发送等级索引确定所述重复发送次数；当所述第二节点重复发送等级索引指示至少两种物理信道和/或物理信道承载的消息的重复发送次数时，依据向所述第二节点发送的物理信道和/或物理信道承载的消息的重复发送次数的选择信息确定所述重复发送次数。
优选地，所述信道增强级别包括以下之一：覆盖增强等级；物理信道重复发送等级；物理随机接入信道覆盖增强等级；物理随机接入信道重复发送等级。
优选地，频分双工FDD模式对应的信道增强级别的数量的最大值与时分双工TDD模式对应的信道增强级别的数量的最大值不同。
优选地，在所述应用场景为所述第二应用场景的情况下，在向所述第二节点发送所述配置消息之后，还包括：向所述第二节点发送用于对所述配置消息指示的所述重复发送次数进行调整的调整消息。
优选地，所述调整消息中携带有以下信息：对所述重复发送次数进行调整的调整步长，对所述重复发送次数进行调整的调整级别，其中，调整步长与调整级别的乘积 表示调整的重复发送次数。
根据本发明实施例的另一方面，提供了一种重复发送处理装置，包括：第一确定模块，设置为确定发送物理信道和/或物理信道承载的消息的应用场景；第一发送模块，设置为在确定的所述应用场景中向第二节点发送配置消息，其中，所述第二节点至少根据所述配置消息确定所述物理信道和/或所述物理信道承载的消息的重复发送次数。
优选地，所述第一发送模块，还设置为在所述应用场景为所述第二节点与第一节点已经建立无线资源控制RRC连接状态的情况下，向所述第二节点发送用于对所述配置消息指示的所述重复发送次数进行调整的调整消息。
优选地，所述第二节点包括以下至少之一：一个或多个终端；一个或多个终端组。
优选地，所述终端包括以下至少之一：人与人通信的终端H2H UE、机器与机器通信的终端M2M UE、机器类型通信终端MTC UE、设备与设备通信的终端D2D UE。
根据本发明实施例的还一方面，提供了一种节点，包括上述任一项所述的装置。
优选地，所述节点包括以下至少之一：宏基站、微基站、微微基站、毫微微基站、低功率节点、中继站。
通过本发明实施例，采用确定发送物理信道和/或物理信道承载的消息的应用场景；在确定的所述应用场景中向第二节点发送配置消息，其中，所述第二节点至少根据所述配置消息确定所述物理信道和/或所述物理信道承载的消息的重复发送次数，解决了相关技术中，存在如何实现特殊场景下部分用户设备UE信道覆盖增强的问题，进而达到了精细化控制不同终端的不同信道的信道增强级别，节省了时频资源的开销，提高了***频谱利用率的效果。
附图说明
此处所说明的附图用来提供对本发明实施例的进一步理解，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是根据本发明实施例的重复发送处理方法的流程图；
图2是根据本发明实施例的重复发送处理装置的结构框图；
图3是根据本发明实施例的节点的结构框图。
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。
在本实施例中提供了一种重复发送处理方法，图1是根据本发明实施例的重复发送处理方法的流程图，如图1所示，该流程包括如下步骤：
步骤S102，确定发送物理信道和/或物理信道承载的消息的应用场景；
步骤S104，在确定的应用场景中向第二节点发送配置消息，其中，第二节点至少根据配置消息确定物理信道和/或物理信道承载的消息的重复发送次数。
通过上述步骤，依据不同的场景，向第二节点发送用于确定发送物理信道和/或物理信道承载的消息的重复发送次数，解决了相关技术中，存在如何实现特殊场景下部分用户设备UE信道覆盖增强的问题，进而达到了精细化控制不同终端的不同信道的信道增强级别，节省了时频资源的开销，提高了***频谱利用率的效果。
其中，上述的应用场景包括第一应用场景，其中，第一应用场景包括以下之一：第二节点的初始随机接入过程；第二节点基于竞争的随机接入过程；第二节点从无线资源控制空闲状态RRC_IDLE转变到与第一节点建立无线资源控制连接状态RRC_CONNECTED；上述应用场景包括第二应用场景，其中，第二应用场景包括：第二节点与第一节点已经建立无线资源控制RRC连接状态。
物理信道包括以下至少之一：物理随机接入信道(Physical Random Access Channel，PRACH)，物理上行共享信道(Physical Uplink Shared Channel，PUSCH)，物理上行控制信道(Physical Uplink Control Channel，PUCCH)，物理下行共享信道(Physical Downlink Shared Channel，PDSCH)，物理下行控制信道(Physical Downlink Control Channel，PDCCH)，增强物理下行控制信道(Enhanced Physical Downlink Control Channel，EPDCCH)；物理信道承载的消息包括以下至少之一：随机接入响应消息；无线资源控制RRC连接重新建立请求消息；无线资源控制RRC连接建立请求消息；随机接入冲突解决消息。
第二节点至少根据配置消息确定物理信道和/或物理信道承载的消息的重复发送次数时，依据接收到的配置消息携带的信息确定重复发送次数时，可以采用多种处理方式，例如，配置消息携带有第二节点信道增强级别的数量信息，以及第二节点重复发送等级索引信息；其中，第二节点信道增强级别的数量信息用于从一个或多个映射表格中选择支持第二节点信道增强级别的数量的映射表格，其中，一个或多个映射表格包括一个或多个物理信道和/或物理信道承载的消息的重复发送等级与信道增强级 别的对应关系；第二节点重复发送等级索引信息用于在选择的映射表格中，确定第二节点发送物理信道和/或物理信道承载的消息的重复发送次数。
其中，该第二节点重复发送等级索引可以指示一种物理信道和/或物理信道承载的消息，也可以指示多种(至少两种)物理信道和/或物理信道承载的消息，下面分别说明。
当第二节点重复发送等级索引指示一种物理信道和/或物理信道承载的消息的重复发送次数时，根据物理信道和/或物理信道承载的消息的重复发送等级索引确定重复发送次数；当第二节点重复发送等级索引指示至少两种物理信道和/或物理信道承载的消息的重复发送次数时，依据向第二节点发送的物理信道和/或物理信道承载的消息的重复发送次数的选择信息确定重复发送次数。
需要说明的是，上述信道增强级别可以包括以下之一：覆盖增强等级；物理信道重复发送等级；物理随机接入信道覆盖增强等级；物理随机接入信道重复发送等级。其中，频分双工FDD模式对应的信道增强级别的数量的最大值与时分双工TDD模式对应的信道增强级别的数量的最大值可以不同，例如，FDD模式下的信道增强级别的数量的最大值可以大于TDD模式对应的信道增强级别的数量的最大值。
优选地，在应用场景为第二应用场景的情况下，在向第二节点发送配置消息之后，还包括：向第二节点发送用于对配置消息指示的重复发送次数进行调整的调整消息。较优地，该调整消息中可以携带有以下信息：对重复发送次数进行调整的调整步长，对重复发送次数进行调整的调整级别，其中，调整步长与调整级别的乘积表示调整的重复发送次数。
在本实施例中还提供了一种重复发送处理装置，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图2是根据本发明实施例的重复发送处理装置的结构框图，如图2所示，该装置包括第一确定模块22和第一发送模块26，下面对该装置进行说明。
第一确定模块22，设置为确定发送物理信道和/或物理信道承载的消息的应用场景；第一发送模块26，连接至上述第一确定模块22，设置为在确定的应用场景中向第二节点发送配置消息，其中，第二节点至少根据所述配置消息确定物理信道和/或物理信道承载的消息的重复发送次数。
优选地，上述第一发送模块26，还可以设置为在应用场景为第二节点与第一节点已经建立无线资源控制RRC连接状态的情况下，向第二节点发送用于对配置消息指示 的重复发送次数进行调整的调整消息。
优选地，上述第二节点可以包括以下至少之一：一个或多个终端；一个或多个终端组。其中，该终端包括以下至少之一：人与人通信的终端(Human To Human User Equipment，H2H UE)、机器与机器通信的终端(Machine To Machine User Equipment，M2M UE)、机器类型通信终端(Machine Type Communication User Equipment，简称为MTC UE)、设备与设备通信的终端(Device To Device User Equipment，简称为D2D UE)。
图3是根据本发明实施例的节点的结构框图，如图3所示，该节点30包括上述任一项的重复发送处理装置32。
优选地，上述节点可以包括以下至少之一：宏基站、微基站、微微基站、毫微微基站、低功率节点、中继站。
在本实施例中，提供了一种信道增强级别的指示方法，通过该方法可以精细化的控制不同终端的不同信道的增强级别(重复发送次数)，进而可以节省时频资源的开销，提高***频谱利用率。该方法包括：物理信道和/或物理信道承载的消息的重复发送次数按照应用场景不用采用不同的方法确定。其中，在第一类应用场景，物理信道和/或物理信道承载的消息的重复发送次数至少由第一类等级的配置信息(同上述配置消息所携带的信息)确定；在第二类应用场景，物理信道和/或物理信道承载的消息的重复发送次数至少由第一类等级的配置信息以及第一类调整信息(同上述调整消息所携带的信息)确定。
其中，该第一类等级(同上述信道增强级别)可以是以下之一：覆盖增强等级；物理信道重复发送等级；物理随机接入信道覆盖增强等级；物理随机接入信道重复发送等级。
需要说明的是，上述第一类等级的配置信息可以包括以下至少之一：第一类节点配置的第一类等级的数量信息、第一类节点配置的第一类等级的索引信息。
优选地，在频分双工(Frequency Division Duplex，简称为FDD)和时分双工(Frequency Division Duplex，简称为TDD)模式下，该第一类节点可以配置的第一类等级数量的最大值可以不同。例如，FDD模式下第一类节点可以配置的第一类等级数量的最大值大于TDD模式。
另外，上述第一类应用场景可以包括以下至少之一：初始随机接入过程；基于竞争的随机接入过程；第二类节点从无线资源管理空闲状态(RRC_IDLE)转变到与第一类节点建立无线资源管理连接状态(RRC_CONNECTED)。
在第一类应用场景，物理信道和/或物理信道承载的消息可以包括以下至少之一：物理上行共享信道；物理上行控制信道；物理下行控共享信道；物理下行控制信道；增强物理下行控制信道；随机接入响应消息；RRC连接重新建立请求消息；RRC连接建立请求消息；随机接入冲突解决消息；
在第一类应用场景下，物理信道和/或物理信道承载的消息的重复发送次数至少由第一类等级的配置信息确定可以包括：预先定义一个或多个物理信道和/或物理信道承载的消息的重复发送等级与第一类等级的映射表格；根据第一类等级的配置中的第一类等级的数量信息，从映射表格中选择支持第一类等级的数量的映射表格；在选择的映射表中，根据第一类等级的索引确定物理信道和/或物理信道承载的消息的重复发送等级索引；根据物理信道和/或物理信道承载的消息的重复发送等级索引确定物理信道和/或物理信道承载的消息的重复发送次数。
其中，根据物理信道和/或物理信道承载的消息的重复发送等级索引确定物理信道和/或物理信道承载的消息的重复发送次数，可以包括以下至少之一：当重复发送等级索引指示一种物理信道和/或物理信道承载的消息的重复发送次数时，根据物理信道和/或物理信道承载的消息的重复发送等级索引确定重复发送次数；当重复发送等级索引指示多种物理信道和/或物理信道承载的消息的重复发送次数时，物理信道和/或物理信道承载的消息的重复发送次数的选择信息由第一类节点在第一类等级的配置信息中指示或者通过信令发送给第二类节点。
第二类应用场景可以包括以下至少之一：第二类节点与第一类节点建立无线资源管理(Radio Resource Control，简称为RRC)连接状态之后；在第二类应用场景，物理信道和/或物理信道承载的消息可以包括以下至少之一：物理随机接入信道(Physical Random Access Channel，PRACH)，物理上行共享信道(Physical Uplink Shared Channel，PUSCH)，物理上行控制信道(Physical Uplink Control Channel，PUCCH)，物理下行共享信道(Physical Downlink Shared Channel，PDSCH)，物理下行控制信道(Physical Downlink Control Channel，PDCCH)，增强物理下行控制信道(Enhanced Physical Downlink Control Channel，EPDCCH)。
优选地，在第二类应用场景中，物理信道和/或物理信道承载的消息的重复发送次数至少由第一类等级的配置信息以及第一类调整信息确定可以包括：预先定义一个或多个物理信道和/或物理信道承载的消息的重复发送等级与第一类等级的映射表格；根据第一类等级的配置中的第一类等级的数量信息，从上述定义的映射表格中选择支持第一类等级的数量的映射表格；在选择的映射表中，根据第一类等级的索引确定物理信道和/或物理信道承载的消息的重复发送等级索引；根据物理信道和/或物理信道承载的消息的重复发送等级索引确定物理信道和/或物理信道承载的消息的重复发送次数； 物理信道和/或物理信道承载的消息的重复发送次数通过第一类调整信息调整，其中，该第一类调整信息是针对确定物理信道和/或物理信道承载的消息的重复发送次数的。
需要说明的是，上述第一类调整信息中可以包括以下信息：确定物理信道和/或物理信道承载的消息的重复发送次数的调整步长，Step；确定物理信道和/或物理信道承载的消息的重复发送次数的调整级别，A；其中，A为整数，并且可以取负整数；根据调整步长Step和调整级别A，确定物理信道和/或物理信道承载的消息重复发送次数的调整信息，可以采用如下方式获得：调整信息＝A*Step。
调整后的确定物理信道和/或物理信道承载的消息重复发送次数，采用如下方式获得：确定物理信道和/或物理信道承载的消息的重复发送次数＝确定物理信道和/或物理信道承载的消息的重复发送次数+调整信息。
确定物理信道包括在第二类应用场景中物理信道和/或物理信道承载的消息中至少之一；当第二类节点接收到单播发送第一类等级信息，则按其指示的第一类等级信息更新；当第二类节点接收到单播发送物理信道和/或物理信道承载的消息的重复发送等级信息，则按其指示的重复发送等级信息更新。
其中，由***配置指示可以包括以下至少之一：由标准预定义；由网络预定义；由标准配置；由网络配置；由网络高层配置。
上述第一类节点可以是以下至少之一：宏基站(Macrocell)、微基站(Microcell)、微微基站(Picocell)、毫微微基站(Femtocell)又叫家庭基站、低功率节点(LPN)及中继站(Relay)。上述第二类节点可以为以下至少之一：一个或多个终端；一个或多个终端组。其中，该终端可以为以下至少之一：人与人通信的终端(Human To Human User Equipment，H2H UE)、机器与机器通信的终端(Machine To Machine User Equipment，M2M UE)、机器类型通信终端(Machine Type Communication User Equipment，简称为MTC UE)、设备与设备通信的终端(Device To Device User Equipment，简称为D2D UE)。
下面结合优选实施方式进行说明。
优选实施例1
在FDD LTE***中存在大量MTC UEs，其中的一部分MTC终端可能位于地下室、墙角等无线环境恶劣的场景，因此针对这种场景进行上下行信道覆盖增强是必要的。按照覆盖增强目标值(Coverage Enhancement Target)不同将上述需要覆盖增强的MTC UEs划分为多个覆盖增强等级(Coverage Enhancement Level，简称为CEL)，在本实施例中，***中配置三个覆盖增强等级，包括CEL0、CEL1、CEL2。
本实施例中，UE1为一个需要覆盖增强的MTC UE，UE1的覆盖增强等级为CEL1，并且UE1处于初始接入***的场景。
UE1首先与FDD LTE***中一个基站(例如，该基站为eNB1)建立下行同步，并且获得***信息，本实施例中，UE1从***信息中获知***中支持3个CEL，分别为CEL0、CEL1、CEL2。
FDD LTE***预先定义多个物理信道和/或物理信道承载的消息的重复发送等级与覆盖增强等级的映射表格。UE1从映射表格中选择支持3个CEL的映射表格，例如为Table1。
UE1在选择的映射表格Table1中，找到CEL1对应的初始随机接入***流程所需要的物理信道和/或物理信道承载的消息的重复发送等级。其中，初始随机接入***流程所需要的物理信道和/或物理信道承载的消息可以包括以下至少之一：物理随机接入信道(Physical Random Access Channel，简称为PRACH)，物理上行共享信道(Physical Uplink Shared Channel，简称为PUSCH)，物理上行控制信道(Physical Uplink Control Channel，简称为PUCCH)，物理下行共享信道(Physical Downlink Shared Channel，简称为PDSCH)，物理下行控制信道(Physical Downlink Control Channel，简称为PDCCH)，增强物理下行控制信道(Enhanced Physical Downlink Control Channel，简称为EPDCCH)；随机接入响应消息；RRC连接重新建立请求消息；RRC连接建立请求消息；随机接入冲突解决消息。
***中定义每个物理信道和/或物理信道承载的消息的重复发送等级只对应一种重复发送次数，则UE1进而获知其重复发送次数。
最后，UE1按照获知的物理信道和/或物理信道承载的消息的重复发送次数，并按照预定义的流程，完成初始随机接入过程。
除本实施例外，***中定义物理信道和/或物理信道承载的消息的重复发送等级可以对应多种重复发送次数，eNB1通过***信息发送或者通过单播信令发送给UE1具体选择哪种重复发送次数；下面举例说明。
当eNB1通过***信息发送时，所有收到上述***信息的UE(包括UE1)都需要按照eNB1指示的重复次数配置物理信道和/或物理信道承载的消息；当eNB1通过单播信令发送时，则只有UE1需要按照eNB1指示的重复次数配置物理信道和/或物理信道承载的消息。
优选实施例2
在TDD LTE***中存在大量MTC UEs，其中的一部分MTC终端可能位于地下 室、墙角等无线环境恶劣的场景，因此针对这种场景进行上下行信道覆盖增强是必要的。按照覆盖增强目标值(Coverage Enhancement Target)不同将上述需要覆盖增强的MTC UEs划分为多个覆盖增强等级(Coverage Enhancement Level，简称为CEL)，本实施例中，***中最多配置三个覆盖增强等级，包括CEL0、CEL1、CEL2。
UE1从TDD LTE***中的服务基站(例如，该基站为eNB1)中获知***中支持2个CEL，分别为CEL0、CEL1。
在本实施例中，UE1为一个需要覆盖增强的MTC UE，并且UE1的覆盖增强等级为CEL1，并且UE1处于从无线资源管理空闲状态(RRC_IDLE)转变到无线资源管理连接状态(RRC_CONNECTED)；
TDD LTE***预先定义多个物理信道和/或物理信道承载的消息的重复发送等级与覆盖增强等级的映射表格。UE1从映射表格中选择支持2个CEL的映射表格，例如为Table2；
UE1在选择的Table2中，找到CEL1对应的从无线资源管理空闲状态(RRC_IDLE)转变到无线资源管理连接状态(RRC_CONNECTED)所需要的物理信道和/或物理信道承载的消息的重复发送等级。其中，初始随机接入***流程所需要的物理信道和/或物理信道承载的消息可以包括以下至少之一：PRACH，PUSCH，物理上行控制信道PUCCH，PDSCH，PDCCH，EPDCCH，随机接入响应消息，RRC连接重新建立请求消息，RRC连接建立请求消息，随机接入冲突解决消息。
***中定义每个物理信道和/或物理信道承载的消息的重复发送等级只对应一种重复发送次数，则UE1进而获知其重复发送次数。
最后，UE1按照预定义的流程，完成从无线资源管理空闲状态(RRC_IDLE)到无线资源管理连接状态(RRC_CONNECTED)的转变。
优选实施例3
在TDD LTE***中存在大量MTC UEs，其中的一部分MTC终端可能位于地下室、墙角等无线环境恶劣的场景，因此针对这种场景进行上下行信道覆盖增强是必要的。按照覆盖增强目标值(Coverage Enhancement Target)不同将上述需要覆盖增强的MTC UEs划分为多个覆盖增强等级(Coverage Enhancement Level，简称为CEL)，本实施例中，***中最多配置三个覆盖增强等级，包括CEL0、CEL1、CEL2。
UE1从TDD LTE***中的服务基站(例如，该基站为eNB1)中获知***中支持2个CEL，分别为CEL0、CEL1。
本实施例中，UE1为一个需要覆盖增强的MTC UE，并且UE1的覆盖增强等级为 CEL1，UE1处于无线资源管理连接状态(RRC_CONNECTED)且有业务需要发送；
TDD LTE***预先定义多个物理信道和/或物理信道承载的消息的重复发送等级与覆盖增强等级的映射表格。UE1从映射表格中选择支持2个CEL的映射表格，例如为Table2。
UE1在选择的Table2中，找到CEL1对应的业务发送所需要的物理信道和/或物理信道承载的消息的重复发送等级。其中，业务发送所需要的物理信道和/或物理信道承载的消息可以包括以下至少之一：PRACH，PUSCH，PUCCH，PDSCH，PDCCH，EPDCCH。
***中定义每个物理信道和/或物理信道承载的消息的重复发送等级只对应一种重复发送次数，则UE1在获知业务发送所需要的物理信道和/或物理信道承载的消息的重复发送等级后，进而获知其重复发送次数。
UE1在业务发送之前，例如，收到了PUSCH重复发送次数的调整信息，则需要按照调整信息更新PUSCH的重复发送次数。
其中，调整信息可以包括：重复发送次数的调整步长，Step；调整级别，A；根据调整步长Step和调整级别A，PUSCH信道的调整次数，可以采用如下方式获得：调整次数＝A*Step；则更新后的PUSCH重复发送次数＝原PUSCH重复发送次数+调整次数。
进而，UE1按照获知的物理信道和/或物理信道承载的消息的重复发送次数以及更新后的PUSCH重复发送次数，按照预定流程完成业务发送。
显然，本领域的技术人员应该明白，上述的本发明实施例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，本发明实施例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
如上所述，通过上述实施例及优选实施方式，解决了相关技术中，存在如何 实现特殊场景下部分用户设备UE信道覆盖增强的问题，进而达到了精细化控制不同终端的不同信道的信道增强级别，节省了时频资源的开销，提高了***频谱利用率的效果。

Claims (15)

  1. 一种重复发送处理方法，包括：
    确定发送物理信道和/或物理信道承载的消息的应用场景；
    在确定的所述应用场景中向第二节点发送配置消息，其中，所述第二节点至少根据所述配置消息确定所述物理信道和/或所述物理信道承载的消息的重复发送次数。
  2. 根据权利要求1所述的方法，其中，
    所述应用场景包括第一应用场景，其中，所述第一应用场景包括以下之一：所述第二节点的初始随机接入过程；所述第二节点基于竞争的随机接入过程；所述第二节点从无线资源控制空闲状态RRC_IDLE转变到与第一节点建立无线资源控制连接状态RRC_CONNECTED；或者，
    所述应用场景包括第二应用场景，其中，所述第二应用场景包括：所述第二节点与第一节点已经建立无线资源控制RRC连接状态。
  3. 根据权利要求1所述的方法，其中，
    所述物理信道包括以下至少之一：物理随机接入信道；物理上行共享信道；物理上行控制信道；物理下行控共享信道；物理下行控制信道；增强物理下行控制信道；
    所述物理信道承载的消息包括以下至少之一：随机接入响应消息；无线资源控制RRC连接重新建立请求消息；无线资源控制RRC连接建立请求消息；随机接入冲突解决消息。
  4. 根据权利要求1所述的方法，其中，
    所述配置消息携带有所述第二节点信道增强级别的数量信息，以及所述第二节点重复发送等级索引信息；
    其中，所述第二节点信道增强级别的数量信息用于从一个或多个映射表格中选择支持所述第二节点信道增强级别的数量的映射表格，其中，所述一个或多个映射表格包括一个或多个所述物理信道和/或物理信道承载的消息的重复发送等级与信道增强级别的对应关系；
    所述第二节点重复发送等级索引信息用于在选择的所述映射表格中，确定所述第二节点发送所述物理信道和/或物理信道承载的消息的重复发送次数。
  5. 根据权利要求4所述的方法，其中，
    当所述第二节点重复发送等级索引指示一种物理信道和/或物理信道承载的消息的重复发送次数时，根据所述物理信道和/或物理信道承载的消息的重复发送等级索引确定所述重复发送次数；
    当所述第二节点重复发送等级索引指示至少两种物理信道和/或物理信道承载的消息的重复发送次数时，依据向所述第二节点发送的物理信道和/或物理信道承载的消息的重复发送次数的选择信息确定所述重复发送次数。
  6. 根据权利要求4所述的方法，其中，所述信道增强级别包括以下之一：
    覆盖增强等级；物理信道重复发送等级；物理随机接入信道覆盖增强等级；物理随机接入信道重复发送等级。
  7. 根据权利要求6所述的方法，其中，频分双工FDD模式对应的信道增强级别的数量的最大值与时分双工TDD模式对应的信道增强级别的数量的最大值不同。
  8. 根据权利要求2所述的方法，其中，在所述应用场景为所述第二应用场景的情况下，在向所述第二节点发送所述配置消息之后，还包括：
    向所述第二节点发送用于对所述配置消息指示的所述重复发送次数进行调整的调整消息。
  9. 根据权利要求8所述的方法，其中，所述调整消息中携带有以下信息：
    对所述重复发送次数进行调整的调整步长，对所述重复发送次数进行调整的调整级别，其中，调整步长与调整级别的乘积表示调整的重复发送次数。
  10. 一种重复发送处理装置，包括：
    第一确定模块，设置为确定发送物理信道和/或物理信道承载的消息的应用场景；
    第一发送模块，设置为在确定的所述应用场景中向第二节点发送配置消息，其中，所述第二节点至少根据所述配置消息确定所述物理信道和/或所述物理信道承载的消息的重复发送次数。
  11. 根据权利要求10所述的装置，其中，所述第一发送模块，还设置为
    在所述应用场景为所述第二节点与第一节点已经建立无线资源控制RRC连接状态的情况下，向所述第二节点发送用于对所述配置消息指示的所述重复发送次数进行调整的调整消息。
  12. 根据权利要求10或11中任一项所述的装置，其中，所述第二节点包括以下至少 之一：
    一个或多个终端；一个或多个终端组。
  13. 根据权利要求12所述的装置，其中，所述终端包括以下至少之一：
    人与人通信的终端H2H UE、机器与机器通信的终端M2M UE、机器类型通信终端MTC UE、设备与设备通信的终端D2D UE。
  14. 一种节点，包括权利要求10至13中任一项所述的装置。
  15. 根据权利要求14所述的节点，其中，所述节点包括以下至少之一：
    宏基站、微基站、微微基站、毫微微基站、低功率节点、中继站。
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