WO2018201407A1 - 报告发送方法、报告接收方法、装置及系统 - Google Patents

报告发送方法、报告接收方法、装置及系统 Download PDF

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Publication number
WO2018201407A1
WO2018201407A1 PCT/CN2017/083097 CN2017083097W WO2018201407A1 WO 2018201407 A1 WO2018201407 A1 WO 2018201407A1 CN 2017083097 W CN2017083097 W CN 2017083097W WO 2018201407 A1 WO2018201407 A1 WO 2018201407A1
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WO
WIPO (PCT)
Prior art keywords
terminal
information
relay
wireless environment
rlf
Prior art date
Application number
PCT/CN2017/083097
Other languages
English (en)
French (fr)
Inventor
唐海
Original Assignee
Oppo广东移动通信有限公司
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.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2017/083097 priority Critical patent/WO2018201407A1/zh
Priority to KR1020197035300A priority patent/KR102339471B1/ko
Priority to EP17908222.7A priority patent/EP3611966B1/en
Priority to US16/609,999 priority patent/US11133978B2/en
Priority to JP2019559106A priority patent/JP2020519107A/ja
Priority to CN201780089857.7A priority patent/CN110574428A/zh
Publication of WO2018201407A1 publication Critical patent/WO2018201407A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/305—Handover due to radio link failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/04—Reselecting a cell layer in multi-layered cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular, to a report sending method, a report receiving method, an apparatus, and a system.
  • a terminal and a base station communicate via a radio link (Ralink Link, RL).
  • Ralink Link RL
  • the terminal When the RL quality is poor or deteriorates, the terminal triggers a Radio Link Failure (RLF) mechanism, and performs RRC connection re-establishment with the base station, and after the connection is re-established, In the RRCConnectionReestablishmentComplete message, it is identified that the terminal side stores the RLF report.
  • the base station requests the terminal to report the RLF report by sending a terminal information request (UEInformationRequest), so as to obtain the reason for the occurrence of the RLF from the RLF report.
  • UEInformationRequest terminal information request
  • a device-to-device (D2D) technology is introduced in the wireless communication system.
  • the terminal can not only directly communicate with the base station, but also can communicate with the base station.
  • the base station communicates.
  • the foregoing RLF mechanism is only applicable to a scene in which a terminal is directly connected to a base station, and cannot be applied to a scenario in which a terminal is connected to a relay.
  • the embodiment of the present invention provides a report sending method, a report receiving method, a device, and a system.
  • the technical solution is as follows:
  • a report sending method comprising:
  • the terminal When the RLF occurs, the terminal generates an RLF report, where the RLF report includes related information about the wireless environment in which the terminal is located when the RLF occurs;
  • the terminal sends the RLF report to the access network device.
  • the RLF report includes a connection state identifier, where the connection state identifier is used to indicate a connection state of the terminal in a wireless environment when the RLF occurs, and the connection state includes Following the connected state and the directly connected state.
  • the RLF report includes first relay information, where the first relay information is used to indicate information of a service relay device serving the terminal before the RLF occurs.
  • the first relay information includes:
  • first link quality information is used to indicate a link quality of a link between the serving relay device and the terminal
  • the second link quality information is used to indicate a link quality of a link between the serving relay device and the access network device.
  • the RLF report includes second relay information, where the second relay information is used to indicate information about a neighboring relay device corresponding to the terminal before the RLF occurs, and the phase The neighboring relay device is adjacent to the terminal and does not serve the terminal.
  • the second relay information includes third link quality information, where the third link quality information is used to indicate a chain of links between the terminal and each adjacent relay device. Road quality.
  • the link quality is Reference Signal Receiving Power (RSRP) and/or Reference Signal Receiving Quality (RSRQ).
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • the method further includes:
  • the terminal When the terminal is in the relay connection state, the terminal reports the wireless environment information to the access network device, where the wireless environment information includes the first wireless environment information and the second wireless environment information;
  • the first wireless environment information is used to indicate a connection between the terminal and the relay device
  • the second wireless environment information is used to indicate a connection between the relay device and the access network device.
  • a report receiving method comprising:
  • the access network device sends a terminal information request to the terminal, where the terminal information request is used to obtain a radio link failure RLF report generated by the terminal, where the RLF report includes information about a radio environment in which the terminal is located when the RLF occurs. ;
  • the access network device receives the RLF report sent by the terminal.
  • the RLF report includes a connection state identifier, where the connection state identifier is used to indicate a connection state of the terminal in a wireless environment when the RLF occurs, and the connection state includes a relay connection state. And direct connection.
  • the RLF report includes first relay information, where the first relay information is used to indicate information of a service relay device serving the terminal before the RLF occurs.
  • the first relay information includes:
  • first link quality information is used to indicate a link quality of a link between the serving relay device and the terminal
  • the second link quality information is used to indicate a link quality of a link between the serving relay device and the access network device.
  • the RLF report includes second relay information, where the second relay information is used to indicate information about a neighboring relay device corresponding to the terminal before the RLF occurs, and the phase The neighboring relay device is adjacent to the terminal and does not serve the terminal.
  • the second relay information includes third link quality information, where the third link quality information is used to indicate a chain of links between the terminal and each adjacent relay device. Road quality.
  • the link quality is RSRP and/or RSRQ.
  • the method further includes:
  • the access network device obtains wireless environment information, and the wireless environment information is reported by each terminal in a relay connection state, where the wireless environment information includes first wireless environment information and second wireless environment information, the first wireless The environment information is used to indicate the connection between the terminal and the relay device, and the second wireless environment information is used to indicate the connection between the relay device and the access network device;
  • the access network device calculates a similarity between the wireless environment in which the terminal is located according to the RLF report and the wireless environment information;
  • the access network device re-allocates the relay device to the terminal.
  • a report transmitting apparatus wherein the report is sent
  • the apparatus comprises at least one unit for implementing the report transmission method provided by any of the possible implementations of the first aspect or the first aspect described above.
  • a report receiving apparatus comprising at least one unit for implementing any of the possible implementations of the second aspect or the second aspect described above The method of receiving reports provided by the method.
  • a terminal comprising a processor, a memory, a transmitter and a receiver; the processor is configured to store one or more instructions, the instruction being indicated as Executed by the processor, the processor is configured to control the transmitter and the receiver, and implement the report sending method provided by any one of the foregoing first aspect or the first aspect.
  • an access network device comprising a processor, a memory, a transmitter and a receiver; the processor is configured to store one or more instructions The instructions are indicated as being executed by the processor, the processor for controlling the transmitter and the receiver to implement the second aspect or any of the possible implementations of the second aspect Report receiving method.
  • a mobile communication system comprising: a terminal and an access network device;
  • the terminal includes the report transmitting device according to the third aspect
  • the access network device includes the report receiving device of the fourth aspect.
  • a mobile communication system comprising: a terminal and an access network device;
  • the terminal includes the terminal according to the fifth aspect
  • the access network device includes the access network device as described in the sixth aspect.
  • a computer readable medium storing one or more instructions for implementing any of the first aspect or the first aspect described above A report implementation method provided by a possible implementation.
  • a computer readable medium storing one or more instructions for implementing any of the above second aspect or second aspect A report receiving method provided by a possible implementation.
  • the terminal After the RLF occurs, the terminal generates an RLF report indicating the wireless environment where the terminal is located when the RLF occurs. And sending, according to the terminal information request sent by the access network device, the RLF report to the access network device, so that the access network device can identify the wireless environment in which the terminal is RLF based on the RLF report, so as to be subsequently based on the wireless
  • the environment optimizes and manages other connected terminals to improve the access quality of the terminals.
  • FIG. 1 is a schematic structural diagram of a mobile communication system according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for sending a report according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for sending a report according to another embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a mobile communication system according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a report sending apparatus according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a report receiving apparatus according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a terminal according to an exemplary embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of an access network device according to an exemplary embodiment of the present invention.
  • a “module” as referred to herein generally refers to a program or instruction stored in a memory that is capable of performing certain functions;
  • "unit” as referred to herein generally refers to a functional structure that is logically divided, the "unit” It can be implemented by pure hardware or a combination of hardware and software.
  • Multiple as referred to herein means two or more. "and/or”, describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately.
  • the character "/" generally indicates that the contextual object is an "or" relationship.
  • FIG. 1 shows a schematic structural diagram of a mobile communication system according to an embodiment of the present invention.
  • the mobile communication system may be an LTE system, or the mobile communication system may also be a 5G system, also known as a New Radio (NR) system.
  • the mobile communication system includes an access network device 120, a relay device 140, and a terminal 160.
  • the access network device 120 can be a base station, and the base station can be used to convert the received radio frame with the IP packet message, and can also coordinate the attribute management of the air interface.
  • the base station may be an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE, or a base station employing a centralized distributed architecture in a 5G system.
  • eNB evolved base station
  • e-NodeB evolutional Node B
  • LTE Long Term Evolutional Node B
  • a base station employing a centralized distributed architecture in a 5G system.
  • the access network device 120 adopts a centralized distributed architecture it generally includes a central unit (CU) and at least two distributed units (DUs).
  • CU central unit
  • DUs distributed units
  • a centralized data unit is provided with a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and a Media Access Control (MAC) layer protocol stack;
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Media Access Control
  • the physical layer (Physical, PHY) protocol stack is provided in the unit.
  • the specific implementation manner of the access network device 120 is not limited in the embodiment of the present invention.
  • the relay device 140 and the access network device 120 establish a wireless connection through the wireless air interface.
  • the wireless air interface is a Uu interface.
  • the relay device 140 may also access the access network device 120 by using a wireless air interface based on the fifth generation mobile communication network technology (5G) standard or a 5G-based next-generation mobile communication network technology standard. This is not limited.
  • 5G fifth generation mobile communication network technology
  • 5G-based next-generation mobile communication network technology standard This is not limited.
  • the relay device 140 is a device having a relay function.
  • the relay device 140 serves as a relay between the terminal 160 and the access network device 120, and also has an interface conforming to the D2D standard, such as a PC5 interface. Through this interface, the relay device 140 is capable of wireless communication with neighboring devices.
  • the relay device 140 is a PC5 relay terminal (PC5 relay UE).
  • Terminal 160 may be a device that provides voice and/or data connectivity to a user, and terminal 160 may also be referred to as a remote terminal.
  • the terminal 160 can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • RAN Radio Access Network
  • RAN can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • RAN Radio Access Network
  • RAN Radio Access Network
  • Subscriber Unit Subscriber Station, Mobile Station, Mobile, Remote Station, Access Point, Remote Terminal , Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • the terminal 160 has an interface conforming to the D2D standard, such as a PC5 interface. Through this interface, the terminal 160 is capable of wireless communication with the adjacent relay device 140. And, pick up The network device 120 stores context information between the relay device 140 and the terminal 160.
  • the report sending method and the report receiving method provided by the embodiments of the present invention is generated by the terminal 160 in the relay connection state (communication with the access network device 120 through the relay device 140), in the direct connection state
  • the access network device 120 re-establishes the connection and provides the access network device 120 with the scenario of the RLF report.
  • multiple access network devices 120, and/or multiple relay devices 140, and/or multiple terminals 160 may be included, but this embodiment The number of access network devices, relay devices, and terminals is not limited.
  • FIG. 2 is a flowchart of a method for sending a report according to an embodiment of the present invention. This embodiment is exemplified by applying the report transmission method to the mobile communication system shown in FIG. 1.
  • the method includes:
  • Step 201 When the RLF occurs, the terminal generates an RLF report, where the RLF report includes related information about the wireless environment where the terminal is located when the RLF occurs.
  • the RLF report generated by the terminal includes not only the cause of the RLF (rlf-Cause) but also the wireless environment in which the terminal is located when the RLF occurs. Related Information.
  • the information about the wireless environment includes a connection state identifier, where the connection state identifier is used to indicate a connection state of the terminal in the wireless environment when the RLF occurs, and the connection state includes a relay connection state and a direct connection. state.
  • the direct connection state when the terminal is directly connected to the access network device, the direct connection state is a Uu direct connection state; when the terminal passes the relay device and the access network device When connected, the trunk connection state is the PC5 trunk connection state.
  • the relay connection state and the direct connection state may adopt different expression manners, which are not limited by the present invention.
  • the RLF report includes a preset field for storing a bearer connection state identifier, and the location of the preset field in the RLF report is pre-defined with the access network device.
  • the terminal When the RLF report is generated, the terminal writes the corresponding connection state identifier into the preset field. For example, when the terminal is in the relay connection state, the terminal sets the connection state identifier of the preset field to 1. When the terminal generates the RLF in the direct connection state, the terminal sets the connection state identifier of the preset field to 0.
  • a terminal When a terminal generates an RLF report, in a possible implementation manner, in a direct connection state, when a T310 timeout occurs (the terminal does not recover from the out-of-synchronization state in time), or a T320 occurs. Timeout (the terminal does not recover from the out-of-synchronization state in time, and the measurement report has been sent), or the random access fails, or the radio link control (RLC) retransmission fails, the terminal determines that the RLF occurs, and An RLF report is generated that indicates that the terminal has an RLF in a directly connected state.
  • T310 timeout the terminal does not recover from the out-of-synchronization state in time
  • a T320 occurs. Timeout (the terminal does not recover from the out-of-synchronization state in time, and the measurement report has been sent), or the random access fails, or the radio link control (RLC) retransmission fails
  • RLC radio link control
  • the terminal determines that the RLF is generated, and generates an RLF report indicating that the terminal has an RLF in the relay connected state.
  • the RLF report when the terminal generates the RLF in the relay connection state, includes the connection state identifier, and may also include the relay information of the relay device serving the terminal before the RLF occurs, and/or the terminal. Relay information of other relay devices (non-service relay devices) in the wireless environment.
  • Step 202 The access network device sends a terminal information request to the terminal, where the terminal information request is used to obtain an RLF report generated by the terminal.
  • the terminal After determining that the RLF occurs, the terminal performs a reestablishment of the radio resource control connection with the access network device.
  • the terminal generates an RLF in a trunk connection state, and re-establishes a connection with the access network device in a directly connected state; or, the terminal generates an RLF in a relay connection state, and is in the middle Reconnecting with the access network device in the connected state; or, the terminal generates RLF in the directly connected state, and re-establishes the connection with the access network device in the relay connection state; or, the terminal is in the direct connection state RLF occurs and the connection is re-established with the access network device in the directly connected state.
  • the RLF is generated only in the relay connection state of the terminal, and the connection is re-established with the access network device in the directly connected state, and the present invention is not limited.
  • the terminal side stores the RLF message in the RRC connection re-establishment completion message.
  • the terminal sets the rlf-InfoAvailable identifier in the RRCConnectionReestablishmentComplete to identify that the terminal side stores the RLF message.
  • the terminal device sends a terminal information request to the access network device to obtain the RLF packet generated by the terminal.
  • the access network device sends a UEInformationRequest to the terminal, and sets rlf-ReportReq-r9 of the UEInformationRequest to TRUE.
  • Step 203 The terminal receives the terminal information request sent by the access network device.
  • Step 204 The terminal sends an RLF report to the access network device.
  • the terminal when it is recognized that rlf-ReportReq-r9 is TRUE, the terminal sends a UEInformationResponse to the access network device, where the UEInformationResponse contains the generated RLF report.
  • Step 205 The access network device receives the RLF report sent by the terminal.
  • the access network device After receiving the RLF report, the access network device parses the RLF report, and determines the wireless environment in which the terminal is in the RLF according to the information about the wireless environment, so as to optimize the management of other terminals in a similar wireless environment. Improve the access quality of such terminals.
  • the access network device and the terminal pre-arrange the predetermined field of the RLF report for carrying the connection state identifier.
  • the terminal parses the connection state identifier in the predetermined field to determine the connection state of the terminal before the RLF occurs. For example, when the connection state identifier in the predetermined field is parsed as 1, the access network device determines that the terminal generates RLF in the relay connection state; when the connection state identifier in the predetermined field is 0, the access network device determines The terminal generates RLF in a directly connected state.
  • the access network device when the parsed connection state identifier indicates that the terminal sends the RLF report in the relay connection state, the access network device further obtains the relay information included in the RLF report, where the relay information includes before the RLF occurs.
  • the terminal after the RLF occurs, the terminal generates an RLF report indicating the radio environment in which the terminal is located when the RLF occurs, and sends the RLF report to the terminal according to the terminal information request sent by the access network device.
  • the network access device enables the access network device to identify the wireless environment in which the terminal is RLF based on the RLF report, so as to optimize the management of other accessed terminals based on the wireless environment, and improve the access quality of the terminal.
  • the access network device can determine the wireless environment in which the RLF terminal is located in the trunk connection state.
  • the access network device further obtains the wireless environment information reported by each terminal (in the relay connection state, and no RLF occurs), and detects the wireless environment indicated by the wireless environment information and When the RLF-enabled terminal is in a similar wireless environment (very likely to occur with RLF), the terminal is actively disconnected from the currently connected relay device, and a relay connection is re-established for the terminal.
  • the access network device further obtains the wireless environment information reported by each terminal (in the relay connection state, and no RLF occurs), and detects the wireless environment indicated by the wireless environment information and When the RLF-enabled terminal is in a similar wireless environment (very likely to occur with RLF), the terminal is actively disconnected from the currently connected relay device, and a relay connection is re-established for the terminal.
  • FIG. 3 is a flowchart of a method for sending a report according to another embodiment of the present invention.
  • This embodiment uses the report transmission method to be applied to the mobile communication system shown in FIG. 1 as an example. Bright.
  • the method includes:
  • Step 301 When in the trunk connection state, the terminal reports the wireless environment information to the access network device.
  • the wireless environment information includes first wireless environment information and second wireless environment information, where the first wireless environment information is used to indicate (in the wireless environment where the terminal is located) the connection between the terminal and the relay device, and second The wireless environment information is used to indicate the connection between the relay device and the access network device (in the wireless environment where the terminal is located).
  • the first wireless environment information is PC5 relay environment information.
  • the PC5 relay environment information includes a service relay device (establishing a wireless connection with the terminal through the PC5 interface, And the identity of the service provided by the terminal and the identity of the non-service relay device (not serving the terminal).
  • the PC5 relay environment information further includes a link quality of a link between the terminal and the service relay device, address information of the service relay device, address information of the non-service relay device, or a terminal and each non-service. At least one of the link qualities of the links between the devices.
  • the second wireless environment information is Uu relay environment information, where the Uu relay environment information includes a link quality of a link between the service relay device and the access network device.
  • the wireless environment information reported by the terminal to the access network device is as shown in Table 1.
  • the terminal acquires the first wireless environment information every predetermined time interval, and receives the second wireless environment information reported by the relay device served by the terminal.
  • the embodiment of the present invention does not limit the specific manner in which the terminal acquires the wireless environment information.
  • Step 302 The access network device receives the wireless environment information reported by each terminal, and stores the information.
  • the access network device receives the wireless environment information reported by each terminal, and associates the terminal with the wireless environment information for subsequent call.
  • Step 303 When the RLF occurs, the terminal generates an RLF report, where the RLF report includes related information about the wireless environment where the terminal is located when the RLF occurs.
  • the RLF report generated by the terminal includes a connection indicating the connected state of the terminal when the RLF is triggered.
  • the terminal collects services for it before the RLF occurs. Serving the information of the relay device and adding this information as the first relay information to the RLF report.
  • the first relay information includes at least one of the following information:
  • the wireless environment in which the terminal is located includes at least one relay device, and one of the at least one relay device establishes a wireless connection with the terminal, and serves as a relay and access network of the terminal.
  • the device communicates, the relay device is the service relay device, and the remaining adjacent relay devices are adjacent relay devices (non-service).
  • the terminal obtains the address information of the service relay device.
  • the address information is a cell identifier of a cell where the serving relay device is located.
  • the terminal 33 includes a relay device 32b serving the same and a neighboring relay device 32a and 32c (not serving) in the wireless environment in which the RLF is located.
  • the terminal 33 acquires the address information of the relay device 32b before the RLF occurs.
  • the address information of the PC5relay UE is used as the address information of the service relay device before the RLF occurs.
  • the terminal uses its own address information as the first relay information.
  • the terminal uses the address information of the remote UE as the address information of the terminal.
  • the first link quality information where the first link quality information is used to indicate the link quality of the link between the serving relay device and the terminal.
  • the terminal collects the link quality of the link with the service relay device, and the The link quality is used as the first link quality information.
  • the link quality is the RSRP and/or the RSRQ, and the like.
  • the embodiment of the present invention does not limit the specific characterization of the link quality.
  • the terminal 33 collects the RSRP and RSRQ of the link with the relay device 32b as the first link quality information.
  • the terminal uses the link quality of the PC5 link with the PC5relay UE as the first link quality information.
  • the second link quality information where the second link quality information is used to indicate the link quality of the link between the serving relay device and the access network device.
  • the terminal After the service relay device establishes a wireless connection with the access network device, the terminal obtains the link quality of the link between the service relay device and the access network device, and uses the link quality as the second link quality information, where
  • the link quality is the RSRP or the RSRQ, and the like.
  • the embodiment of the present invention does not limit the specific characterization of the link quality.
  • the terminal 33 acquires the RSRP and RSRQ of the link between the relay device 32b and the access network device 31 as the second link quality information.
  • the terminal uses the link quality of the Uu link between the PC5relay UE and the eNB as the second link quality information.
  • the first relay information may include more related to the service relay device.
  • the information is not limited by the present invention.
  • the RLF report generated by the terminal further includes second relay information, where the second relay information is used to indicate that the RLF occurs.
  • the second relay information includes third link quality information, where the third link quality information is used to indicate a link quality of a link between the terminal and each neighboring relay device.
  • the relay device 32a and the relay device 32c are adjacent relay devices corresponding to the terminal 33, and the terminal 33 is about to link with the link between the relay device 32a and the relay device 32c.
  • the quality is determined as the third link quality information.
  • the link quality is RSRP and/or RSRQ and so on.
  • the terminal uses the link quality of the Uu link between the PC5relay UE and the eNB as the second link quality information.
  • the terminal obtains the quality of the transmission and reception of the reference signal according to the quality of the link between the terminal and each of the adjacent relay devices.
  • the link quality of the link is stored.
  • the foregoing information is included in the second relay information as an example.
  • the second relay information may include more related to the adjacent relay device. The information is not limited by the present invention.
  • the RLF report generated by the terminal is enhanced, which not only indicates the connection state of the terminal before the RLF occurs, but also describes the wireless location of the terminal through the included relay information. surroundings.
  • the access network can optimize the management of terminals in a similar wireless environment.
  • Step 304 The access network device sends a terminal information request to the terminal, where the terminal information request is used to obtain an RLF report generated by the terminal.
  • Step 305 The terminal receives the terminal information request sent by the access network device.
  • Step 306 The terminal sends an RLF report to the access network device.
  • Step 307 The access network device receives the RLF report sent by the terminal.
  • Step 308 The access network device acquires wireless environment information.
  • the access network device receives and stores the wireless environment information reported by each terminal. After receiving the RLF report sent by the terminal, the access network device acquires the wireless environment information, and according to the wireless environment information and the RLF. The report determines if there are terminals in a similar wireless environment.
  • Step 309 The access network device calculates the similarity of the wireless environment in which the terminal is located according to the RLF report and the wireless environment information.
  • the access network device can determine the wireless environment in which the terminal is located when the RLF occurs; based on the wireless environment information reported by the terminal, the access network device can determine that each terminal (the RLF has not yet occurred) Wireless environment. Therefore, based on the RLF report and the wireless environment information, the access network device can further calculate the similarity of the wireless environment in which the different terminals are located, and determine the risk degree of the subsequent occurrence of the RLF by the terminal that does not have the RLF.
  • the access network device determines that the risk of the RLF occurring in the terminal is high, and performs the following step 310; when the similarity of the wireless environment of the terminal is low, the access network The device determines that the risk of RLF occurring in the terminal is low and maintains the current connection state of the terminal.
  • the access network device calculates, according to the RLF report and the first wireless environment information, a first similarity of the first wireless sub-environment (a wireless environment between the terminal and the relay device), and/or according to The RLF report and the second wireless environment information calculate a second similarity of the second wireless sub-environment (a wireless environment between the relay device and the access network device), thereby calculating different according to the first similarity and/or the second similarity The similarity of the wireless environment in which the terminal is located.
  • an access network device determines, according to an RLF report, a first PC5 relay wireless environment formed by a terminal that generates an RLF and a relay device, and determines that no RLF occurs according to the first wireless environment information.
  • the second PC5 relay wireless environment formed by the terminal and the relay device By calculating the similarity between the first PC5 relay wireless environment and the second PC5 relay wireless environment, the access network device can determine whether the two terminals are in a similar PC5 relay wireless environment.
  • the access network device determines, according to the RLF report, the first Uu relay radio environment (corresponding to the RLF-enabled terminal) formed by the relay device and the access network device, and determines the relay device and the access according to the second radio environment information.
  • the second Uu relay wireless environment (corresponding to the terminal that does not generate RLF) formed by the network device, by calculating the similarity between the first Uu relay wireless environment and the second Uu relay wireless environment, the access network device can determine two Whether the terminal is in a similar Uu relay wireless environment.
  • Step 310 If the similarity is greater than the threshold, the access network device re-assigns the relay device to the terminal.
  • the access network device determines that the risk of subsequent RLF occurrence of the terminal is high. To prevent the RLF from occurring in the terminal, the access network device takes the initiative. The terminal is disconnected from the currently serving relay device, and the terminal is re-assigned to the terminal, thereby avoiding a similar RLF situation.
  • the terminal after the RLF occurs, the terminal generates an RLF report indicating the radio environment in which the terminal is located when the RLF occurs, and sends the RLF report to the terminal according to the terminal information request sent by the access network device.
  • the network access device enables the access network device to identify the wireless environment in which the terminal is RLF based on the RLF report, so as to optimize the management of other accessed terminals based on the wireless environment, and improve the access quality of the terminal.
  • the access network device obtains the wireless environment information reported by each terminal, and after receiving the RLF report sent by the terminal, determines the terminal in a similar wireless environment based on the wireless environment information and the RLF report, and The class terminal re-establishes the trunk connection, thereby avoiding RLF of such terminal and improving the connection quality of the terminal.
  • the step of using the terminal as the execution subject may be separately implemented as the report sending method on the terminal side, and the step of using the access network device as the execution subject may be separately implemented as the access network device side.
  • the method for receiving the report is not described herein.
  • FIG. 5 is a schematic structural diagram of a report sending apparatus according to an embodiment of the present invention.
  • the report transmitting device can be implemented as all or a part of the terminal by software, hardware, and a combination of both.
  • the report transmitting apparatus includes a report generating unit 520, a request receiving unit 540, and a report transmitting unit 560.
  • the report generating unit 520 is configured to implement the foregoing steps 201 and 303 and functions related to the generating report step;
  • the request receiving unit 540 is configured to implement the foregoing steps 203 and 305 and functions related to the receiving request step;
  • the report sending unit 560 is configured to implement the above steps 204 and 306 and functions related to the sending report step.
  • the apparatus further includes: an information reporting unit;
  • the information reporting unit is configured to implement the foregoing steps 301 and functions related to the reporting information step.
  • FIG. 6 is a schematic structural diagram of a report receiving apparatus according to an embodiment of the present invention.
  • the report receiving device can be implemented as all or part of the access network device by software, hardware, and a combination of both.
  • the report receiving apparatus includes a request transmitting unit 620 and a report receiving unit 640.
  • the request sending unit 620 is configured to implement the foregoing steps 202 and 304 and functions related to the sending request step;
  • the report receiving unit 640 is configured to implement the above steps 205, 307 and functions related to receiving the reporting step.
  • the apparatus further includes: an information acquiring unit, a calculating unit, and an allocating unit;
  • An information acquiring unit configured to implement the foregoing step 308 and a function related to the step of acquiring information
  • a calculating unit configured to implement the foregoing step 309 and functions related to the calculating step
  • An allocating unit for implementing the above step 310 and the functions related to the assigning step.
  • FIG. 7 is a schematic structural diagram of a terminal provided by an exemplary embodiment of the present invention.
  • the terminal includes a processor 21, a receiver 22, a transmitter 23, a memory 24, and a bus 25.
  • the processor 21 includes one or more processing cores, and the processor 21 executes various functional applications and information processing by running software programs and modules.
  • the receiver 22 and the transmitter 23 can be implemented as a communication component.
  • the communication component can be a communication chip.
  • the communication chip can include a receiving module, a transmitting module, a modem module, etc., for modulating and/or decoding information. Adjust and receive or send this information via wireless signal.
  • the memory 24 is connected to the processor 21 via a bus 25.
  • Memory 24 can be used to store software programs as well as modules.
  • the memory 24 can store at least one of the application modules 26 described by the functions.
  • the application module 26 can include a report generation module 261, a request receiving module 262, and a report sending module 263.
  • the processor 21 is configured to execute the report generating module 261 to implement the function of generating the reporting step in the foregoing various method embodiments; the processor 21 is configured to execute the request receiving module 262 to implement the function of receiving the request step in each of the foregoing method embodiments; The processor 21 is configured to execute the report sending module 263 to implement the function of transmitting the reporting step in the various method embodiments described above.
  • the application module 26 may further include an information reporting module, where the processor 21 is configured to execute the information reporting module to implement the function of reporting the information step in each of the foregoing method embodiments.
  • memory 24 can be implemented by any type of volatile or non-volatile memory device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable In addition to Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • FIG. 8 is a schematic structural diagram of an access network device according to an exemplary embodiment of the present invention.
  • the access network device includes: a processor 21 , a receiver 22 , a transmitter 23 , a memory 24 , and a bus 25 . .
  • the processor 21 includes one or more processing cores, and the processor 21 executes various functional applications and information processing by running software programs and modules.
  • the receiver 22 and the transmitter 23 can be implemented as a communication component.
  • the communication component can be a communication chip.
  • the communication chip can include a receiving module, a transmitting module, a modem module, etc., for modulating and/or decoding information. Adjust and receive or send this information via wireless signal.
  • the memory 24 is connected to the processor 21 via a bus 25.
  • Memory 24 can be used to store software programs as well as modules.
  • the memory 24 can store at least one of the application modules 26 described by the functions.
  • the application module 26 can include a request sending module 261 and a report receiving module 262.
  • the processor 21 is configured to execute the request sending module 261 to implement the function of the request sending step in the foregoing various method embodiments; the processor 21 is configured to execute the report receiving module 262 to implement the function of receiving the reporting step in the foregoing various method embodiments.
  • the application module 26 further includes: an information acquisition module, a calculation module, and an allocation module;
  • the processor 21 is configured to execute an information acquisition module to implement the function of acquiring information steps in the foregoing various method embodiments; the processor 21 is configured to execute the calculation module to implement the foregoing various method embodiments. The function of the calculation step; the processor 21 is configured to execute the allocation module to implement the functions of the allocation steps in the various method embodiments described above.
  • memory 24 can be implemented by any type of volatile or non-volatile memory device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable In addition to Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • the functions described in the embodiments of the present invention may be implemented in hardware, software, firmware, or any combination thereof.
  • the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

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Abstract

本发明实施例提供了一种报告发送方法、报告接收方法、装置及系统，涉及通信领域，所述方法包括：当发生RLF时，终端生成RLF报告，RLF报告中包括发生RLF时终端所处无线环境的相关信息；终端接收接入网设备发送的终端信息请求，终端信息请求用于获取终端生成的RLF报告；终端向接入网设备发送RLF报告。本发明实施例中，接入网设备能够根据RLF报告识别出终端发生RLF时所处的无线环境，以便后续基于无线环境对接入的终端进行优化管理，提高终端的接入质量。

Description

报告发送方法、报告接收方法、装置及系统 技术领域
本发明实施例涉及通信领域，特别涉及一种报告发送方法、报告接收方法、装置及系统。
背景技术
在长期演进(Long-Term Evolution，LTE)系统中，终端与基站之间通过无线链路(Radio Link，RL)进行通信。
当RL质量不佳或发生恶化时，终端即触发无线链路失败(Radio Link Failure，RLF)机制，与基站进行无线资源控制连接重建立(RRC connection re-establishment)，并在连接重新建立后，在无线资源控制连接重建立完成(RRCConnectionReestablishmentComplete)消息中标识终端侧存储有RLF报告。基站通过发送终端信息请求(UEInformationRequest)的方式，请求终端上报RLF报告，以便从该RLF报告中获取发生RLF的原因。
为了提高频谱资源利用率以及网络容量，无线通信系统中引入了设备到设备(Device-to-Device，D2D)技术，通过该技术，终端不仅能够与基站进行直连通信，还能够通过中继与基站进行通信。然而，上述RLF机制仅适用于终端与基站直连场景，无法适用于终端与中继相连的场景。
发明内容
为了解决相关技术中的无法适用于终端与中继相连的问题，本发明实施例提供了一种报告发送方法、报告接收方法、装置及系统。所述技术方案如下：
根据本发明实施例的第一方面，提供了一种报告发送方法，所述方法包括：
当发生RLF时，终端生成RLF报告，所述RLF报告中包括发生RLF时所述终端所处无线环境的相关信息；
所述终端接收接入网设备发送的终端信息请求，所述终端信息请求用于获取所述终端生成的所述RLF报告；
所述终端向所述接入网设备发送所述RLF报告。
在可选的实施例中，所述RLF报告中包括连接态标识，所述连接态标识用于指示发生RLF时所述终端在无线环境所处的连接态，所述连接态包括中 继连接态和直连连接态。
在可选的实施例中，所述RLF报告中包括第一中继信息，所述第一中继信息用于指示发生RLF前，为所述终端服务的服务中继设备的信息。
在可选的实施例中，所述第一中继信息包括：
所述服务中继设备的地址信息；
和/或，
所述终端的地址信息；
和/或，
第一链路质量信息，所述第一链路质量信息用于指示所述服务中继设备与所述终端之间链路的链路质量；
和/或，
第二链路质量信息，所述第二链路质量信息用于指示所述服务中继设备与所述接入网设备之间链路的链路质量。
在可选的实施例中，所述RLF报告中包括第二中继信息，所述第二中继信息用于指示发生RLF前，所述终端对应的相邻中继设备的信息，所述相邻中继设备与所述终端相邻，且未为所述终端服务。
在可选的实施例中，所述第二中继信息包括第三链路质量信息，所述第三链路质量信息用于指示所述终端与各个相邻中继设备之间链路的链路质量。
在可选的实施例中，所述链路质量为参考信号接收功率(Reference Signal Receiving Power，RSRP)和/或参考信号接收质量(Reference Signal Receiving Quality，RSRQ)。
在可选的实施例中，所述方法，还包括：
当所述终端处于中继连接态时，所述终端向所述接入网设备上报无线环境信息，所述无线环境信息包括第一无线环境信息和第二无线环境信息；
其中，所述第一无线环境信息用于指示所述终端与中继设备的连接情况，所述第二无线环境信息用于指示中继设备与接入网设备的连接情况。
根据本发明实施例的第二方面，提供了一种报告接收方法，所述方法包括：
接入网设备向终端发送终端信息请求，所述终端信息请求用于获取所述终端生成的无线链路失败RLF报告，所述RLF报告中包括发生RLF时所述终端所处无线环境的相关信息；
所述接入网设备接收所述终端发送的所述RLF报告。
在可选的实施例中，所述RLF报告中包括连接态标识，所述连接态标识用于指示发生RLF时所述终端在无线环境所处的连接态，所述连接态包括中继连接态和直连连接态。
在可选的实施例中，所述RLF报告中包括第一中继信息，所述第一中继信息用于指示发生RLF前，为所述终端服务的服务中继设备的信息。
在可选的实施例中，所述第一中继信息包括：
所述服务中继设备的地址信息；
和/或，
所述终端的地址信息；
和/或，
第一链路质量信息，所述第一链路质量信息用于指示所述服务中继设备与所述终端之间链路的链路质量；
和/或，
第二链路质量信息，所述第二链路质量信息用于指示所述服务中继设备与所述接入网设备之间链路的链路质量。
在可选的实施例中，所述RLF报告中包括第二中继信息，所述第二中继信息用于指示发生RLF前，所述终端对应的相邻中继设备的信息，所述相邻中继设备与所述终端相邻，且未为所述终端服务。
在可选的实施例中，所述第二中继信息包括第三链路质量信息，所述第三链路质量信息用于指示所述终端与各个相邻中继设备之间链路的链路质量。
在可选的实施例中，所述链路质量为RSRP和/或RSRQ。
在可选的实施例中，所述方法，还包括：
所述接入网设备获取无线环境信息，所述无线环境信息由各个处于中继连接态的终端上报，所述无线环境信息包括第一无线环境信息和第二无线环境信息，所述第一无线环境信息用于指示终端与中继设备的连接情况，所述第二无线环境信息用于指示中继设备与接入网设备的连接情况；
所述接入网设备根据所述RLF报告与所述无线环境信息，计算终端所处无线环境的相似度；
若所述相似度大于阈值，所述接入网设备则重新为所述终端分配中继设备。
根据本发明实施例的第三方面，提供了一种报告发送装置，所述报告发送 装置包括至少一个单元，该至少一个单元用于实现上述第一方面或第一方面中任意一种可能的实现方式所提供的报告发送方法。
根据本发明实施例的第四方面，提供了一种报告接收装置，所述报告接收装置包括至少一个单元，该至少一个单元用于实现上述第二方面或第二方面中任意一种可能的实现方式所提供的报告接收方法。
根据本发明实施例的第五方面，提供了一种终端，所述终端包括处理器、存储器、发射器和接收器；所述处理器用于存储一个或一个以上的指令，所述指令被指示为由所述处理器执行，所述处理器用于控制所述发射器和所述接收器，实现上述第一方面或第一方面中任意一种可能的实现方式所提供的报告发送方法。
根据本发明实施例的第六方面，提供了一种接入网设备，所述接入网设备设备包括处理器、存储器、发射器和接收器；所述处理器用于存储一个或一个以上的指令，所述指令被指示为由所述处理器执行，所述处理器用于控制所述发射器和所述接收器，实现上述第二方面或第二方面中任意一种可能的实现方式所提供的报告接收方法。
根据本发明实施例的第七方面，提供了一种移动通信系统，所述系统包括：终端和接入网设备；
所述终端包括如第三方面所述的报告发送装置；
所述接入网设备包括如第四方面所述的报告接收装置。
根据本发明实施例的第七方面，提供了一种移动通信系统，所述系统包括：终端和接入网设备；
所述终端包括如第五方面所述的终端；
所述接入网设备包括如第六方面所述的接入网设备。
根据本发明实施例的第九方面，提供了一种计算机可读介质，所述计算机可读介质存储有一个或一个以上的指令，所述指令用于实现上述第一方面或第一方面中任意一种可能的实现方式所提供的报告发送方法。
根据本发明实施例的第十方面，提供了一种计算机可读介质，所述计算机可读介质存储有一个或一个以上的指令，所述指令用于实现上述第二方面或第二方面中任意一种可能的实现方式所提供的报告接收方法。
本发明实施例提供的技术方案的有益效果是：
终端在发生RLF后，生成指示发生RLF时终端所处无线环境的RLF报告， 并根据接入网设备发送的终端信息请求，将该RLF报告发送给接入网设备，使得接入网设备基于该RLF报告能够识别出终端发生RLF时所处的无线环境，以便后续基于该无线环境对其他接入的终端进行优化管理，提高终端的接入质量。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1示出了本发明一个实施例提供的移动通信系统的结构示意图；
图2示出了本发明一个实施例提供的报告发送方法的方法流程图；
图3示出了本发明另一个实施例提供的报告发送方法的方法流程图；
图4示出了本发明一个实施例提供的移动通信系统的结构示意图；
图5示出了本发明一个实施例提供的报告发送装置的结构示意图；
图6示出了本发明一个实施例提供的报告接收装置的结构示意图；
图7示出了本发明一个示例性实施例提供的终端的结构示意图；
图8示出了本发明一个示例性实施例提供的接入网设备的结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。
在本文提及的“模块”通常是指存储在存储器中的能够实现某些功能的程序或指令；在本文中提及的“单元”通常是指按照逻辑划分的功能性结构，该“单元”可以由纯硬件实现，或者，软硬件的结合实现。
在本文中提及的“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
请参考图1，其示出了本发明一个实施例提供的移动通信系统的结构示意 图。该移动通信系统可以是LTE系统，或者，该移动通信系统还可以是5G系统，又称新空口(New Radio，NR)系统。该移动通信系统包括：接入网设备120、中继设备140和终端160。
接入网设备120可以是基站，该基站可用于将接收到的无线帧与IP分组报文进行相互转换，还可协调对空中接口的属性管理。例如，基站可以LTE中的演进型基站(eNB或e-NodeB，evolutional Node B)，或者，5G系统中采用集中分布式架构的基站。当接入网设备120采用集中分布式架构时，通常包括集中单元(central unit，CU)和至少两个分布单元(distributed unit，DU)。集中单元中设置有分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层、无线链路层控制协议(Radio Link Control，RLC)层、媒体访问控制(Media Access Control，MAC)层的协议栈；分布单元中设置有物理层(Physical，PHY)协议栈，本发明实施例对接入网设备120的具体实现方式不加以限定。
中继设备140和接入网设备120通过无线空口建立无线连接。比如，在LTE系统中，该无线空口为Uu接口。可选的，中继设备140还可以通过基于第五代移动通信网络技术(5G)标准，或基于5G的更下一代移动通信网络技术标准的无线空口接入接入网设备120，本发明并不对此进行限定。
中继设备140是具有中继(relay)功能的设备。本发明实施例中，中继设备140作为终端160与接入网设备120之间的中继，还具有符合D2D标准的接口，比如PC5接口。通过该接口，中继设备140即能够与邻近的设备进行无线通信。例如，该中继设备140为PC5中继终端(PC5relay UE)。
终端160可以是指向用户提供语音和/或数据连通性的设备，终端160还可以被称为远程终端(remote UE)。终端160可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，终端160可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。例如，订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、接入点(Access Point)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户装置(User Terminal)、用户代理(User Agent)、用户设备(User Device)、或用户终端(User Equipment)。
本发明实施例中，终端160具有符合D2D标准的接口，比如PC5接口。通过该接口，终端160即能够与邻近的中继设备140进行无线通信。并且，接 入网设备120中保存有中继设备140与终端160之间的上下文信息(context)。
本发明各个实施例提供的报告发送方法和报告接收方法，即用于终端160在中继连接态(通过中继设备140与接入网设备120通信)下发生RLF，在直连连接态下与接入网设备120重新建立连接，并向接入网设备120提供RLF报告的场景。
需要说明的是，在图1所示的移动通信系统中，可以包括多个接入网设备120，和/或，多个中继设备140，和/或，多个终端160，但本实施例并不对接入网设备、中继设备以及终端的数量进行限定。
请参考图2，其示出了本发明一个实施例提供的报告发送方法的方法流程图。本实施例以该报告发送方法应用于图1所示的移动通信系统中来举例说明。该方法包括：
步骤201，当发生RLF时，终端生成RLF报告，RLF报告中包括发生RLF时终端所处无线环境的相关信息。
不同于现有技术中终端生成的RLF报告，本发明实施例中，终端生成的RLF报告中不仅包含发生RLF的原因(rlf-Cause)，还包含用于描述发生RLF时终端所处无线环境的相关信息。
可选的，无线环境的相关信息中包含连接态标识，该连接态标识用于指示发生RLF时所述终端在无线环境中所处的连接态，该连接态包括中继连接态和直连连接态。
在一个示意性的实施例中，在LTE系统中，当终端与接入网设备直连时，该直连连接态即为Uu直连连接态；当终端通过中继设备与接入网设备中继相连时，该中继连接态即为PC5中继连接态。在不同的通信系统中，中继连接态和直连连接态可以采用不同的表述方式，本发明并不对此进行限定。
在一种可能的实施方式中，RLF报告中包含用于存储承载连接态标识的预设字段，该预设字段在RLF报告中的位置预先与接入网设备约定。在生成RLF报告时，终端即将相应的连接态标识写入该预设字段中。比如，当终端在中继连接态下发生RLF时，终端设置该预设字段的连接态标识为1，当终端在直连连接态下发生RLF时，终端设置该预设字段的连接态标识为0。
针对终端生成RLF报告的时机，在一种可能的实施方式中，在直连连接态下，当发生T310超时(终端未及时从失步状态中恢复)，或者，发生T320 超时(终端未及时从失步状态中恢复，且测量报告已发送)，或者，随机接入失败，或者，发生无线连接控制(Radio Link Control，RLC)重传失败时，终端确定发生RLF，并生成指示终端在直连连接态下发生RLF的RLF报告。
在另一种可能的实施方式中，在中继连接态下，当发生RLC重传失败，或者，检测到中继设备到接入网设备之间的链路的链路质量恶化，或者，检测到与接入网设备之间的链路的链路质量恶化时，终端确定发生RLF，并生成指示终端在中继连接态下发生RLF的RLF报告。
可选的，当终端在中继连接态下发生RLF时，RLF报告中包含连接态标识的同时，还可以包含发生RLF前，为终端服务的中继设备的中继信息，和/或，终端所处无线环境中其他中继设备(非服务的中继设备)的中继信息。
步骤202，接入网设备向终端发送终端信息请求，终端信息请求用于获取终端生成的RLF报告。
终端确定发生RLF后，即与接入网设备进行无线资源控制连接重建立。
在一种可能的实施方式中，终端在中继连接态下发生RLF，并在直连连接态下与接入网设备重新建立连接；或，终端在中继连接态下发生RLF，并在中继连接态下与接入网设备重新建立连接；或，终端在直连连接态下发生RLF，并在中继连接态下与接入网设备重新建立连接；或，终端在直连连接态下发生RLF，并在直连连接态下与接入网设备重新建立连接。下述实施例中，仅以终端在中继连接态下发生RLF，并在直连连接态下与接入网设备重新建立连接为例进行示意性说明，并不对本发明构成限定。
为了使接入网设备知悉发生RLF的具体原因，以便后续对接入的终端进行优化管理，终端重新建立连接后，在无线资源控制连接重建立完成消息中标识终端侧存储有RLF报文。
在一种可能的实施方式中，终端在RRCConnectionReestablishmentComplete中设置rlf-InfoAvailable标识，以标识终端侧存储有RLF报文。
相应的，接入网设备从无线资源控制连接重建立完成消息中识别出该标识后，即向接入网设备发送终端信息请求，请求获取终端生成的RLF报文。
在一种可能的实施方式中，接入网设备向终端发送UEInformationRequest，并设置UEInformationRequest的rlf-ReportReq-r9为TRUE。
步骤203，终端接收接入网设备发送的终端信息请求。
步骤204，终端向接入网设备发送RLF报告。
在一种可能的实施方式中，当识别到rlf-ReportReq-r9为TRUE时，终端即向接入网设备发送UEInformationResponse，该UEInformationResponse中即包含生成的RLF报告。
步骤205，接入网设备接收终端发送的RLF报告。
接入网设备接收到RLF报告后，即对该RLF报告进行解析，从而根据无线环境的相关信息确定出终端发生RLF时所处的无线环境，以便对其他处于相似无线环境的终端进行优化管理，提高此类终端的接入质量。
在一种可能的实施方式中，接入网设备与终端预先约定RLF报告的预定字段用于承载连接态标识。接收到RLF报告后，终端即解析预定字段中的连接态标识，从而确定发生RLF前终端所处的连接态。比如，当解析出预定字段中的连接态标识为1时，接入网设备确定终端在中继连接态下发生RLF；当解析出预定字段中的连接态标识为0时，接入网设备确定终端在直连连接态下发生RLF。
可选的，当解析出的连接态标识指示终端在中继连接态下发送RLF报告时，接入网设备进一步获取RLF报告中包含的中继信息，其中，该中继信息中包含发生RLF前，为终端服务的中继设备的中继信息，和/或，终端所处无线环境中其他中继设备(非服务的中继设备)的中继信息。
综上所述，本发明实施例中，终端在发生RLF后，生成指示发生RLF时终端所处无线环境的RLF报告，并根据接入网设备发送的终端信息请求，将该RLF报告发送给接入网设备，使得接入网设备基于该RLF报告能够识别出终端发生RLF时所处的无线环境，以便后续基于该无线环境对其他接入的终端进行优化管理，提高终端的接入质量。
基于接收到的RLF报告，接入网设备即能够确定出中继连接态下，发生RLF的终端所处的无线环境。可选的，接收到RLF报告后，接入网设备进一步获取各个终端(处于中继连接态，且未发生RLF)上报的无线环境信息，并在检测到该无线环境信息所指示的无线环境与发生RLF的终端所处的无线环境相似时(极有可能发生RLF)，主动将终端从当前连接的中继设备断开，并重新为该终端建立中继连接。下面采用示意性的实施例进行说明。
请参考图3，其示出了本发明另一个实施例提供的报告发送方法的方法流程图。本实施例以该报告发送方法应用于图1所示的移动通信系统中来举例说 明。该方法包括：
步骤301，当处于中继连接态时，终端向接入网设备上报无线环境信息。
可选的，该无线环境信息包括第一无线环境信息和第二无线环境信息，其中，第一无线环境信息用于指示(终端所处无线环境中)终端与中继设备的连接情况，第二无线环境信息则用于指示(终端所处无线环境中)中继设备与接入网设备的连接情况。
示意性的，在LTE系统中，该第一无线环境信息为PC5中继环境信息，可选的，该PC5中继环境信息中包含服务中继设备(与终端之间通过PC5接口建立无线连接，并为终端提供服务)的标识以及非服务中继设备(未为终端提供服务)的标识。可选的，该PC5中继环境信息还包括终端与服务中继设备之间链路的链路质量、服务中继设备的地址信息、非服务中继设备的地址信息或终端与各个非服务中继设备之间链路的链路质量中的至少一种。相应的，在LTE系统中，该第二无线环境信息为Uu中继环境信息，该Uu中继环境信息中包含服务中继设备与接入网设备之间链路的链路质量。
在一个示意性的例子中，终端向接入网设备上报的无线环境信息如表一所示。
表一
Figure PCTCN2017083097-appb-000001
在一种可能的实施方式中，终端每隔预定时间间隔获取第一无线环境信息，并接收为其服务的中继设备上报的第二无线环境信息。本发明实施例并不对终端获取无线环境信息的具体方式进行限定。
步骤302，接入网设备接收各个终端上报的无线环境信息，并进行存储。
相应的，接入网设备接收各个终端上报的无线环境信息，并将终端与无线环境信息进行关联存储，以便后续调用。
步骤303，当发生RLF时，终端生成RLF报告，RLF报告中包括发生RLF时终端所处无线环境的相关信息。
为了方便接入网设备检测发生RLF与未发生RLF的终端所处无线环境的相似度，在一种可能的实施方式中，终端生成的RLF报告除了包含指示发生RLF时终端所处连接态的连接态标识外，终端在发生RLF前采集为其服务的 服务中继设备的信息，并将该信息作为第一中继信息添加到RLF报告中。
可选的，该第一中继信息中包含如下信息中的至少一种：
1、服务中继设备的地址信息。
终端处于中继连接态时，终端所处的无线环境中包含至少一个中继设备，且至少一个中继设备中的一个中继设备与终端建立无线连接，并作为终端的中继与接入网设备进行通信，该中继设备即为服务中继设备，而其余相邻的中继设备则为相邻中继设备(非服务)。终端在发生RLF前(比如刚进入中继连接态时)，即获取该服务中继设备的地址信息。可选的，该地址信息为服务中继设备所处小区的小区标识。
示意性的，如图4所示，终端33发生RLF前所处的无线环境中包含为其服务的中继设备32b以及相邻的中继设备32a和32c(未为其服务)。终端33在发生RLF前，即获取该中继设备32b的地址信息。
在一个示意性的例子中，LTE系统中，终端将发生RLF前，PC5relay UE的地址信息作为服务中继设备的地址信息。
2、终端的地址信息。
为了使接入网设备知悉发生RLF时终端所处的位置，终端将自身的地址信息作为第一中继信息。在一个示意性的例子中，LTE系统中，终端将发生RLF前，remote UE的地址信息作为终端的地址信息。
3、第一链路质量信息，第一链路质量信息用于指示服务中继设备与终端之间链路的链路质量。
为了使接入网设备知悉终端与服务中继设备之间的链路状况，终端与服务中继设备建立无线连接后，终端收集与服务中继设备之间链路的链路质量，并将该链路质量作为第一链路质量信息。其中，该链路质量为RSRP和/或RSRQ等等，本发明实施例并不对链路质量的具体表征方式进行限定。
示意性的，如图4所示，终端33收集与中继设备32b之间链路的RSRP和RSRQ，并将其作为第一链路质量信息。
在一个示意性的例子中，LTE系统中，终端将与PC5relay UE之间PC5链路的链路质量作为第一链路质量信息。
4、第二链路质量信息，第二链路质量信息用于指示服务中继设备与接入网设备之间链路的链路质量。
为了使接入网设备知悉服务中继设备与接入网设备之间的链路状况，终端 通过服务中继设备与接入网设备建立无线连接后，终端获取服务中继设备与接入网设备之间链路的链路质量，并将该链路质量作为第二链路质量信息，其中，该链路质量为RSRP或RSRQ等等，本发明实施例并不对链路质量的具体表征方式进行限定。
示意性的，如图4所示，终端33获取中继设备32b与接入网设备31之间链路的RSRP和RSRQ，并将其作为第二链路质量信息。
在一个示意性的例子中，LTE系统中，终端将PC5relay UE与eNB之间Uu链路的链路质量作为第二链路质量信息。
需要说明的是，本实施例仅以第一中继信息中包含上述信息为例进行示意性说明，在实际实施过程中，该第一中继信息中可以包含更多与服务中继设备相关的信息，本发明并不对此进行限定。
为了更加准确描述出终端发生RLF前所处的无线环境，在一种可能的实施方式中，终端生成的RLF报告中还包含第二中继信息，该第二中继信息即用于指示发生RLF前，终端对应的相邻中继设备的信息，其中，该相邻中继设备与终端相邻，且未为终端服务。
可选的，该第二中继信息中包含第三链路质量信息，该第三链路质量信息用于指示终端与各个相邻中继设备之间链路的链路质量。
示意性的，如图4所示，中继设备32a和中继设备32c为终端33对应的相邻中继设备，终端33即将与中继设备32a和中继设备32c之间链路的链路质量确定为第三链路质量信息。其中，该链路质量为为RSRP和/或RSRQ等等。
在一个示意性的例子中，LTE系统中，终端将PC5relay UE与eNB之间Uu链路的链路质量作为第二链路质量信息。
针对获取终端与各个相邻中继设备间链路质量的方式，在一种可能的实施方式中，终端在与中继设备建立无线连接前，根据参考信号的收发质量获取与各个中继设备间链路的链路质量，并进行存储。
需要说明的是，本实施例仅以第二中继信息中包含上述信息为例进行示意性说明，在实际实施过程中，该第二中继信息中可以包含更多与相邻中继设备相关的信息，本发明并不对此进行限定。
通过上述步骤，终端生成的RLF报告得到增强，不仅能够指示出终端发生RLF前所处的连接态，还能够通过包含的中继信息描述出终端所处的无线 环境。接入网接收到该RLF报告后，即可对处于相似无线环境的终端进行优化管理。
步骤304，接入网设备向终端发送终端信息请求，终端信息请求用于获取终端生成的RLF报告。
步骤305，终端接收接入网设备发送的终端信息请求。
步骤306，终端向接入网设备发送RLF报告。
步骤307，接入网设备接收终端发送的RLF报告。
上述步骤304至307的实施方式与步骤202至205相似，本实施例在此不再赘述。
步骤308，接入网设备获取无线环境信息。
上述步骤301中，接入网设备接收并存储有各个终端上报的无线环境信息，当接收到终端发送的RLF报告后，接入网设备即获取该无线环境信息，并根据该无线环境信息和RLF报告确定是否存在处于相似无线环境的终端。
步骤309，接入网设备根据RLF报告与无线环境信息，计算终端所处无线环境的相似度。
基于接收到的RLF报告，接入网设备可以确定出发生RLF时终端所处的无线环境；基于终端上报的无线环境信息，接入网设备可以确定出各个终端(还未发生RLF)各自所处的无线环境。因此，基于RLF报告和无线环境信息，接入网设备可以进一步计算出不同终端所处无线环境的相似度，进而确定出未发生RLF的终端后续发生RLF的风险程度。当终端所处无线环境的相似度较高时，接入网设备确定该终端发生RLF的风险较高，并执行下述步骤310；当终端所处无线环境的相似度较低时，接入网设备确定该终端发生RLF的风险较低，并保持终端当前的连接态。
在一种可能的实施方式中，接入网设备根据RLF报告和第一无线环境信息计算第一无线子环境(终端与中继设备间的无线环境)的第一相似度，和/或，根据RLF报告和第二无线环境信息计算第二无线子环境(中继设备与接入网设备间的无线环境)的第二相似度，从而根据第一相似度和/或第二相似度计算得到不同终端所处无线环境的相似度。
在一个示意性的例子中，在LTE系统中，接入网设备根据RLF报告确定发生RLF的终端与中继设备构成的第一PC5中继无线环境，并根据第一无线环境信息确定未发生RLF的终端与中继设备构成的第二PC5中继无线环境， 通过计算第一PC5中继无线环境和第二PC5中继无线环境的相似度，接入网设备即可确定两个终端是否处于相似的PC5中继无线环境。
类似的，接入网设备根据RLF报告确定中继设备与接入网设备构成的第一Uu中继无线环境(对应发生RLF的终端)，并根据第二无线环境信息确定中继设备与接入网设备构成的第二Uu中继无线环境(对应未发生RLF的终端)，通过计算第一Uu中继无线环境和第二Uu中继无线环境的相似度，接入网设备即可确定两个终端是否处于相似的Uu中继无线环境。
步骤310，若相似度大于阈值，接入网设备则重新为终端分配中继设备。
当未发生RLF的终端与已发生RLF的终端所处无线环境的相似度大于阈值时，接入网设备确定该终端后续发生RLF的风险较高，为了避免该终端发生RLF，接入网设备主动将该终端从当前服务的中继设备上断开，并重新为终端分配中继设备，从而避免类似的RLF情况发生。
综上所述，本发明实施例中，终端在发生RLF后，生成指示发生RLF时终端所处无线环境的RLF报告，并根据接入网设备发送的终端信息请求，将该RLF报告发送给接入网设备，使得接入网设备基于该RLF报告能够识别出终端发生RLF时所处的无线环境，以便后续基于该无线环境对其他接入的终端进行优化管理，提高终端的接入质量。
本实施例中，接入网设备通过获取各个终端上报的无线环境信息，并在接收到终端发送的RLF报告后，基于该无线环境信息和RLF报告确定出处于相似无线环境的终端，并为此类终端重新建立中继连接，从而避免此类终端发生RLF，提高终端的连接质量。
需要说明的是，本发明各个实施例中，以终端为执行主体的步骤可单独实现成为终端侧的报告发送方法，以接入网设备为执行主体的步骤可单独实现成为接入网设备侧的报告接收方法，本发明在此不再赘述。
以下为本发明实施例的装置实施例，对于装置实施例中未详细阐述的部分，可以参考上述方法实施例中公开的技术细节。
请参考图5，其示出了本发明一个实施例提供的报告发送装置的结构示意图。该报告发送装置可以通过软件、硬件以及两者的组合实现成为终端的全部或一部分。该报告发送装置包括：报告生成单元520、请求接收单元540和报告发送单元560。
报告生成单元520，用于实现上述步骤201、303以及与生成报告步骤相关的功能；
请求接收单元540，用于实现上述步骤203、305以及与接收请求步骤相关的功能；
报告发送单元560，用于实现上述步骤204、306以及与发送报告步骤相关的功能。
在可选的实施例中，该装置还包括：信息上报单元；
信息上报单元，用于实现上述步骤301以及与上报信息步骤相关的功能。
请参考图6，其示出了本发明一个实施例提供的报告接收装置的结构示意图。该报告接收装置可以通过软件、硬件以及两者的组合实现成为接入网设备的全部或一部分。该报告接收装置包括：请求发送单元620和报告接收单元640。
请求发送单元620，用于实现上述步骤202、304以及与发送请求步骤相关的功能；
报告接收单元640，用于实现上述步骤205、307以及与接收报告步骤相关的功能。
在可选的实施例中，该装置还包括：信息获取单元、计算单元和分配单元；
信息获取单元，用于实现上述步骤308以及与获取信息步骤相关的功能；
计算单元，用于实现上述步骤309以及与计算步骤相关的功能；
分配单元，用于实现上述步骤310以及与分配步骤相关的功能。
请参考图7，其示出了本发明一个示例性实施例提供的终端的结构示意图，该终端包括：处理器21、接收器22、发射器23、存储器24和总线25。
处理器21包括一个或者一个以上处理核心，处理器21通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
接收器22和发射器23可以实现为一个通信组件，该通信组件可以是一块通信芯片，通信芯片中可以包括接收模块、发射模块和调制解调模块等，用于对信息进行调制和/或解调，并通过无线信号接收或发送该信息。
存储器24通过总线25与处理器21相连。
存储器24可用于存储软件程序以及模块。
存储器24可存储至少一个功能所述的应用程序模块26。应用程序模块26可以包括：报告生成模块261、请求接收模块262和报告发送模块263。
处理器21用于执行报告生成模块261以实现上述各个方法实施例中有关生成报告步骤的功能；处理器21用于执行请求接收模块262以实现上述各个方法实施例中有关接收请求步骤的功能；处理器21用于执行报告发送模块263以实现上述各个方法实施例中有关发送报告步骤的功能。
可选的，应用程序模块26还可以包括信息上报模块，处理器21用于执行信息上报模块以实现上述各个方法实施例中有关上报信息步骤的功能
此外，存储器24可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随时存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
请参考图8，其示出了本发明一个示例性实施例提供的接入网设备的结构示意图，该接入网设备包括：处理器21、接收器22、发射器23、存储器24和总线25。
处理器21包括一个或者一个以上处理核心，处理器21通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
接收器22和发射器23可以实现为一个通信组件，该通信组件可以是一块通信芯片，通信芯片中可以包括接收模块、发射模块和调制解调模块等，用于对信息进行调制和/或解调，并通过无线信号接收或发送该信息。
存储器24通过总线25与处理器21相连。
存储器24可用于存储软件程序以及模块。
存储器24可存储至少一个功能所述的应用程序模块26。应用程序模块26可以包括：请求发送模块261和报告接收模块262。
处理器21用于执行请求发送模块261以实现上述各个方法实施例中有关请求发送步骤的功能；处理器21用于执行报告接收模块262以实现上述各个方法实施例中有关接收报告步骤的功能。
可选的，应用程序模块26还包括：信息获取模块、计算模块和分配模块；
处理器21用于执行信息获取模块以实现上述各个方法实施例中有关获取信息步骤的功能；处理器21用于执行计算模块以实现上述各个方法实施例中 有关计算步骤的功能；处理器21用于执行分配模块以实现上述各个方法实施例中有关分配步骤的功能。
此外，存储器24可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随时存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本发明实施例所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，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。

Claims (50)

  1. 一种报告发送方法，其特征在于，所述方法包括：
    当发生无线链路失败RLF时，终端生成RLF报告，所述RLF报告中包括发生RLF时所述终端所处无线环境的相关信息；
    所述终端接收接入网设备发送的终端信息请求，所述终端信息请求用于获取所述终端生成的所述RLF报告；
    所述终端向所述接入网设备发送所述RLF报告。
  2. 根据权利要求1所述的方法，其特征在于，所述RLF报告中包括连接态标识，所述连接态标识用于指示发生RLF时所述终端在无线环境中所处的连接态，所述连接态包括中继连接态和直连连接态。
  3. 根据权利要求1或2所述的方法，其特征在于，所述RLF报告中包括第一中继信息，所述第一中继信息用于指示发生RLF前，为所述终端服务的服务中继设备的信息。
  4. 根据权利要求3所述的方法，其特征在于，所述第一中继信息包括：
    所述服务中继设备的地址信息；
    和/或，
    所述终端的地址信息；
    和/或，
    第一链路质量信息，所述第一链路质量信息用于指示所述服务中继设备与所述终端之间链路的链路质量；
    和/或，
    第二链路质量信息，所述第二链路质量信息用于指示所述服务中继设备与所述接入网设备之间链路的链路质量。
  5. 根据权利要求1或2所述的方法，其特征在于，所述RLF报告中包括第二中继信息，所述第二中继信息用于指示发生RLF前，所述终端对应的相邻中继设备的信息，所述相邻中继设备与所述终端相邻，且未为所述终端服务。
  6. 根据权利要求5所述的方法，其特征在于，所述第二中继信息包括第三链路质量信息，所述第三链路质量信息用于指示所述终端与各个相邻中继设备之间链路的链路质量。
  7. 根据权利要求4或6所述的方法，其特征在于，所述链路质量为参考信号接收功率RSRP和/或参考信号接收质量RSRQ。
  8. 根据权利要求1至7任一所述的方法，其特征在于，所述方法，还包括：
    当所述终端处于中继连接态时，所述终端向所述接入网设备上报无线环境信息，所述无线环境信息包括第一无线环境信息和第二无线环境信息；
    其中，所述第一无线环境信息用于指示所述终端与中继设备的连接情况，所述第二无线环境信息用于指示中继设备与接入网设备的连接情况。
  9. 一种报告接收方法，其特征在于，所述方法包括：
    接入网设备向终端发送终端信息请求，所述终端信息请求用于获取所述终端生成的无线链路失败RLF报告，所述RLF报告中包括发生RLF时所述终端所处无线环境的相关信息；
    所述接入网设备接收所述终端发送的所述RLF报告。
  10. 根据权利要求9所述的方法，其特征在于，所述RLF报告中包括连接态标识，所述连接态标识用于指示发生RLF时所述终端在无线环境中所处的连接态，所述连接态包括中继连接态和直连连接态。
  11. 根据权利要求9或10所述的方法，其特征在于，所述RLF报告中包括第一中继信息，所述第一中继信息用于指示发生RLF前，为所述终端服务的服务中继设备的信息。
  12. 根据权利要求11所述的方法，其特征在于，所述第一中继信息包括：
    所述服务中继设备的地址信息；
    和/或，
    所述终端的地址信息；
    和/或，
    第一链路质量信息，所述第一链路质量信息用于指示所述服务中继设备与所述终端之间链路的链路质量；
    和/或，
    第二链路质量信息，所述第二链路质量信息用于指示所述服务中继设备与所述接入网设备之间链路的链路质量。
  13. 根据权利要求9或10所述的方法，其特征在于，所述RLF报告中包括第二中继信息，所述第二中继信息用于指示发生RLF前，所述终端对应的相邻中继设备的信息，所述相邻中继设备与所述终端相邻，且未为所述终端服务。
  14. 根据权利要求13所述的方法，其特征在于，所述第二中继信息包括第三链路质量信息，所述第三链路质量信息用于指示所述终端与各个相邻中继设备之间链路的链路质量。
  15. 根据权利要求12或14所述的方法，其特征在于，所述链路质量为参考信号接收功率RSRP和/或参考信号接收质量RSRQ。
  16. 根据权利要求9至15任一所述的方法，其特征在于，所述方法，还包括：
    所述接入网设备获取无线环境信息，所述无线环境信息由各个处于中继连接态的终端上报，所述无线环境信息包括第一无线环境信息和第二无线环境信息，所述第一无线环境信息用于指示终端与中继设备的连接情况，所述第二无线环境信息用于指示中继设备与接入网设备的连接情况；
    所述接入网设备根据所述RLF报告与所述无线环境信息，计算终端所处无线环境的相似度；
    若所述相似度大于阈值，所述接入网设备则重新为所述终端分配中继设备。
  17. 一种报告发送装置，其特征在于，所述装置包括：
    报告生成单元，用于当发生无线链路失败RLF时，生成RLF报告，所述 RLF报告中包括发生RLF时所述终端所处无线环境的相关信息；
    请求接收单元，用于接收接入网设备发送的终端信息请求，所述终端信息请求用于获取所述终端生成的所述RLF报告；
    报告发送单元，用于向所述接入网设备发送所述RLF报告。
  18. 根据权利要求17所述的装置，其特征在于，所述RLF报告中包括连接态标识，所述连接态标识用于指示发生RLF时所述终端在无线环境中所处的连接态，所述连接态包括中继连接态和直连连接态。
  19. 根据权利要求17或18所述的装置，其特征在于，所述RLF报告中包括第一中继信息，所述第一中继信息用于指示发生RLF前，为所述终端服务的服务中继设备的信息。
  20. 根据权利要求19所述的装置，其特征在于，所述第一中继信息包括：
    所述服务中继设备的地址信息；
    和/或，
    所述终端的地址信息；
    和/或，
    第一链路质量信息，所述第一链路质量信息用于指示所述服务中继设备与所述终端之间链路的链路质量；
    和/或，
    第二链路质量信息，所述第二链路质量信息用于指示所述服务中继设备与所述接入网设备之间链路的链路质量。
  21. 根据权利要求17或18所述的装置，其特征在于，所述RLF报告中包括第二中继信息，所述第二中继信息用于指示发生RLF前，所述终端对应的相邻中继设备的信息，所述相邻中继设备与所述终端相邻，且未为所述终端服务。
  22. 根据权利要求21所述的装置，其特征在于，所述第二中继信息包括第三链路质量信息，所述第三链路质量信息用于指示所述终端与各个相邻中继设备之间链路的链路质量。
  23. 根据权利要求20或22所述的装置，其特征在于，所述链路质量为参考信号接收功率RSRP和/或参考信号接收质量RSRQ。
  24. 根据权利要求17至23任一所述的装置，其特征在于，所述装置，还包括：
    信息上报单元，用于当所述终端处于中继连接态时，向所述接入网设备上报无线环境信息，所述无线环境信息包括第一无线环境信息和第二无线环境信息；
    其中，所述第一无线环境信息用于指示所述终端与中继设备的连接情况，所述第二无线环境信息用于指示中继设备与接入网设备的连接情况。
  25. 一种报告接收装置，其特征在于，所述装置包括：
    请求发送单元，用于向终端发送终端信息请求，所述终端信息请求用于获取所述终端生成的无线链路失败RLF报告，所述RLF报告中包括发生RLF时所述终端所述无线环境的相关信息；
    报告接收单元，用于接收所述终端发送的所述RLF报告。
  26. 根据权利要求25所述的装置，其特征在于，所述RLF报告中包括连接态标识，所述连接态标识用于指示发生RLF时所述终端在无线环境中所处的连接态，所述连接态包括中继连接态和直连连接态。
  27. 根据权利要求25或26所述的装置，其特征在于，所述RLF报告中包括第一中继信息，所述第一中继信息用于指示发生RLF前，为所述终端服务的服务中继设备的信息。
  28. 根据权利要求27所述的装置，其特征在于，所述第一中继信息包括：
    所述服务中继设备的地址信息；
    和/或，
    所述终端的地址信息；
    和/或，
    第一链路质量信息，所述第一链路质量信息用于指示所述服务中继设备与所述终端之间链路的链路质量；
    和/或，
    第二链路质量信息，所述第二链路质量信息用于指示所述服务中继设备与所述接入网设备之间链路的链路质量。
  29. 根据权利要求25或26所述的装置，其特征在于，所述RLF报告中包括第二中继信息，所述第二中继信息用于指示发生RLF前，所述终端对应的相邻中继设备的信息，所述相邻中继设备与所述终端相邻，且未为所述终端服务。
  30. 根据权利要求29所述的装置，其特征在于，所述第二中继信息包括第三链路质量信息，所述第三链路质量信息用于指示所述终端与各个相邻中继设备之间链路的链路质量。
  31. 根据权利要求28或30所述的装置，其特征在于，所述链路质量为参考信号接收功率RSRP和/或参考信号接收质量RSRQ。
  32. 根据权利要求25至31任一所述的装置，其特征在于，所述装置，还包括：
    信息获取单元，用于获取无线环境信息，所述无线环境信息由各个处于中继连接态的终端上报，所述无线环境信息包括第一无线环境信息和第二无线环境信息，所述第一无线环境信息用于指示终端与中继设备的连接情况，所述第二无线环境信息用于指示中继设备与接入网设备的连接情况；
    计算单元，用于根据所述RLF报告与所述无线环境信息，计算终端所处无线环境的相似度；
    分配单元，用于当所述相似度大于阈值时，重新为所述终端分配中继设备。
  33. 一种终端，其特征在于，所述终端包括：
    处理器，用于当发生无线链路失败RLF时，生成RLF报告，所述RLF报告中包括发生RLF时所述终端所处无线环境的相关信息；
    接收器，用于接收接入网设备发送的终端信息请求，所述终端信息请求用 于获取所述终端生成的所述RLF报告；
    发射器，向所述接入网设备发送所述RLF报告。
  34. 根据权利要求33所述的终端，其特征在于，所述RLF报告中包括连接态标识，所述连接态标识用于指示发生RLF时所述终端在无线环境中所处的连接态，所述连接态包括中继连接态和直连连接态。
  35. 根据权利要求33或34所述的终端，其特征在于，所述RLF报告中包括第一中继信息，所述第一中继信息用于指示发生RLF前，为所述终端服务的服务中继设备的信息。
  36. 根据权利要求35所述的终端，其特征在于，所述第一中继信息包括：
    所述服务中继设备的地址信息；
    和/或，
    所述终端的地址信息；
    和/或，
    第一链路质量信息，所述第一链路质量信息用于指示所述服务中继设备与所述终端之间链路的链路质量；
    和/或，
    第二链路质量信息，所述第二链路质量信息用于指示所述服务中继设备与所述接入网设备之间链路的链路质量。
  37. 根据权利要求33或34所述的终端，其特征在于，所述RLF报告中包括第二中继信息，所述第二中继信息用于指示发生RLF前，所述终端对应的相邻中继设备的信息，所述相邻中继设备与所述终端相邻，且未为所述终端服务。
  38. 根据权利要求37所述的终端，其特征在于，所述第二中继信息包括第三链路质量信息，所述第三链路质量信息用于指示所述终端与各个相邻中继设备之间链路的链路质量。
  39. 根据权利要求36或38所述的终端，其特征在于，所述链路质量为参 考信号接收功率RSRP和/或参考信号接收质量RSRQ。
  40. 根据权利要求33至39任一所述的终端，其特征在于，发射器，还用于：
    当所述终端处于中继连接态时，向所述接入网设备上报无线环境信息，所述无线环境信息包括第一无线环境信息和第二无线环境信息；
    其中，所述第一无线环境信息用于指示所述终端与中继设备的连接情况，所述第二无线环境信息用于指示中继设备与接入网设备的连接情况。
  41. 一种接入网设备，其特征在于，所述接入网设备包括：
    发射器，用于向终端发送终端信息请求，所述终端信息请求用于获取所述终端生成的无线链路失败RLF报告，所述RLF报告中包括发生RLF时所述终端所述无线环境的相关信息；
    接收器，用于接收所述终端发送的所述RLF报告。
  42. 根据权利要求25所述的接入网设备，其特征在于，所述RLF报告中包括连接态标识，所述连接态标识用于指示发生RLF时所述终端在无线环境中所处的连接态，所述连接态包括中继连接态和直连连接态。
  43. 根据权利要求41或42所述的接入网设备，其特征在于，所述RLF报告中包括第一中继信息，所述第一中继信息用于指示发生RLF前，为所述终端服务的服务中继设备的信息。
  44. 根据权利要求43所述的接入网设备，其特征在于，所述第一中继信息包括：
    所述服务中继设备的地址信息；
    和/或，
    所述终端的地址信息；
    和/或，
    第一链路质量信息，所述第一链路质量信息用于指示所述服务中继设备与所述终端之间链路的链路质量；
    和/或，
    第二链路质量信息，所述第二链路质量信息用于指示所述服务中继设备与所述接入网设备之间链路的链路质量。
  45. 根据权利要求41或42所述的接入网设备，其特征在于，所述RLF报告中包括第二中继信息，所述第二中继信息用于指示发生RLF前，所述终端对应的相邻中继设备的信息，所述相邻中继设备与所述终端相邻，且未为所述终端服务。
  46. 根据权利要求45所述的接入网设备，其特征在于，所述第二中继信息包括第三链路质量信息，所述第三链路质量信息用于指示所述终端与各个相邻中继设备之间链路的链路质量。
  47. 根据权利要求44或46所述的接入网设备，其特征在于，所述链路质量为参考信号接收功率RSRP和/或参考信号接收质量RSRQ。
  48. 根据权利要求42至47任一所述的接入网设备，其特征在于，处理器，还用于：
    获取无线环境信息，所述无线环境信息由各个处于中继连接态的终端上报，所述无线环境信息包括第一无线环境信息和第二无线环境信息，所述第一无线环境信息用于指示终端与中继设备的连接情况，所述第二无线环境信息用于指示中继设备与接入网设备的连接情况；
    根据所述RLF报告与所述无线环境信息，计算终端所处无线环境的相似度；
    当所述相似度大于阈值时，重新为所述终端分配中继设备。
  49. 一种移动通信系统，其特征在于，所述系统中包括：终端和接入网设备；
    所述终端包括如权利要求17至24任一所述的报文发送装置；
    所述接入网设备包括如权利要求25至32任一所述的报文接收装置。
  50. 一种移动通信系统，其特征在于，所述系统中包括：终端和接入网设 备；
    所述终端包括如权利要求33至40任一所述的终端；
    所述接入网设备包括如权利要求41至48任一所述的接入网设备。
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CN110574428A (zh) 2019-12-13
US20200067762A1 (en) 2020-02-27
KR20200003095A (ko) 2020-01-08

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