WO2017028462A1 - Procédé de communication, terminal, et station de base - Google Patents

Procédé de communication, terminal, et station de base Download PDF

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Publication number
WO2017028462A1
WO2017028462A1 PCT/CN2015/100267 CN2015100267W WO2017028462A1 WO 2017028462 A1 WO2017028462 A1 WO 2017028462A1 CN 2015100267 W CN2015100267 W CN 2015100267W WO 2017028462 A1 WO2017028462 A1 WO 2017028462A1
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WIPO (PCT)
Prior art keywords
terminal
relay
base station
information
system information
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PCT/CN2015/100267
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English (en)
Chinese (zh)
Inventor
雷艺学
吴宽
江明
郑倩
张晨璐
张云飞
Original Assignee
宇龙计算机通信科技(深圳)有限公司
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Publication of WO2017028462A1 publication Critical patent/WO2017028462A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a communication method, a terminal, and a base station.
  • D2D communication is a new technology that allows terminals to communicate directly by multiplexing cell resources under the control of the system. It can increase the spectrum efficiency of the cellular communication system and reduce the terminal. The transmission power solves the problem of lack of spectrum resources of the wireless communication system to a certain extent.
  • the D2D communication technology specifically refers to direct communication between terminals, and does not need to be transmitted or forwarded through a device such as a base station.
  • D2D can be deployed within cellular network coverage and/or outside network coverage.
  • the function of the relay terminal is a new feature introduced in D2D communication. Its deployment is very flexible, and it can expand the network coverage without increasing the existing network equipment. In commercial communication, public safety communication (such as earthquake, war), etc. The field has important applications. Therefore, D2D communication and relay terminals have good application prospects.
  • the terminal under the coverage of the base station is only an ordinary terminal before becoming the relay terminal, it needs to be initialized so that it can perform data forwarding for the base station and the remote terminal to complete the relay.
  • the existing protocol specifications there is no specific scheme for relay initialization of the terminal.
  • the technical problem to be solved by the embodiments of the present invention is to provide a communication method, a terminal, and a base station. To solve the problem of how the terminal is initialized as a relay terminal to complete relay communication.
  • a first aspect of the embodiments of the present invention provides a communication method, including:
  • the terminal acquires a system information block message sent by the base station, where the system information block message is included for selecting Select the parameter information of the relay terminal;
  • the terminal capability information is reported to the base station, so that the base station selects the relay terminal from the respective terminals to perform communication according to the terminal capability information reported by each terminal in the signal coverage range. .
  • the acquiring, by the terminal, the system information block message sent by the base station includes:
  • the terminal determines that it can become a relay terminal according to the power capacity and/or the reference signal received power, transmitting a relay initialization request message for requesting to become the relay terminal to the base station;
  • the acquiring, by the terminal, the system information block message sent by the base station includes:
  • the terminal monitors a system information block message periodically broadcast by the base station.
  • the acquiring, by the terminal, the system information block message sent by the base station includes:
  • the terminal determines that it can become a relay terminal according to the power capacity and/or the reference signal received power, the terminal listens to the system information block message broadcast by the base station.
  • the parameter information for selecting the relay terminal includes a reference signal receiving power threshold value and a threshold value of the number of times the cell changes within a preset time.
  • the parameter information used for selecting the relay terminal further includes at least one of the following information:
  • the power threshold value including a first threshold value corresponding to the executable resource scheduling, and a second threshold value corresponding to the remote terminal that can serve the coverage of the base station signal And corresponding to a third threshold value that can only serve the terminal within the signal coverage of the base station;
  • the terminal capability information includes at least one of the following information:
  • Terminal power information capability information for resource scheduling, reference signal received power information, and maximum number of remote terminals that can be served.
  • the terminal Before the acquiring the system information block message sent by the base station, the terminal further includes:
  • a second aspect of the embodiments of the present invention provides a communication method, including:
  • the base station sends a system information block message to the terminal, where the system information block message includes parameter information for selecting the relay terminal;
  • the base station After the terminal determines that the user meets the condition of being the relay terminal according to the parameter information, the base station receives the terminal capability information reported by the terminal;
  • the base station sends a system information block message to the terminal, including:
  • the terminal After the terminal determines that it can become a relay terminal according to the power capacity and/or the reference signal received power, the terminal receives a relay initialization request message sent by the terminal for requesting to become a relay terminal;
  • a system information block message is returned to the terminal.
  • the base station sends a system information block message to the terminal, including:
  • the base station periodically broadcasts a system information block message.
  • the base station receives the relay initialization request message that exceeds the preset number of times within the preset time period, the period of the broadcast system information block message is extended.
  • the parameter information for selecting the relay terminal includes a reference signal receiving power threshold value and a threshold value of the number of times the cell changes within a preset time.
  • the parameter information used for selecting the relay terminal further includes at least one of the following information:
  • the power threshold value including a first threshold value corresponding to the executable resource scheduling, and a second threshold value corresponding to the remote terminal that can serve the coverage of the base station signal And corresponding to a third threshold value that can only serve the terminal within the signal coverage of the base station;
  • the terminal capability information includes at least one of the following information:
  • Terminal power information capability information for resource scheduling, reference signal received power information, and maximum number of remote terminals that can be served.
  • the method further includes:
  • a terminal including:
  • An acquiring unit configured to acquire a system information block message sent by the base station, where the system information block message includes parameter information for selecting a relay terminal;
  • a determining unit configured to determine, according to the parameter information, whether the terminal satisfies a condition that becomes a relay terminal;
  • a reporting unit configured to report terminal capability information to the base station if the terminal satisfies the condition of being a relay terminal, so that the base station selects from each terminal according to terminal capability information reported by each terminal in the signal coverage range
  • the relay terminal communicates.
  • the obtaining unit is specifically configured to:
  • the terminal can be a relay terminal, sending a relay initialization request message for requesting to become a relay terminal to the base station;
  • the obtaining unit is specifically configured to:
  • the obtaining unit is specifically configured to:
  • the terminal can become a relay terminal, the system information block message broadcast by the base station is monitored.
  • the parameter information for selecting the relay terminal includes a reference signal receiving power threshold value and a threshold value of the number of times the cell changes within a preset time.
  • the parameter information used for selecting the relay terminal further includes at least one of the following information:
  • the power threshold value including a first threshold value corresponding to the executable resource scheduling, and a second threshold value corresponding to the remote terminal that can serve the coverage of the base station signal And corresponding to a third threshold value that can only serve the terminal within the signal coverage of the base station;
  • the terminal capability information includes at least one of the following information:
  • Terminal power information capability information for resource scheduling, reference signal received power information, and maximum number of remote terminals that can be served.
  • a determining unit configured to: before the terminal acquires the system information block message sent by the base station, listen to a relay request of the remote terminal in the coverage of the terminal signal, and record information corresponding to the relay request, where The information corresponding to the request includes the number of remote terminals that initiate the relay request and/or the priority of the relay request;
  • a fourth aspect of the embodiments of the present invention provides a base station, including:
  • a sending unit configured to send a system information block message to the terminal, where the system information block message includes parameter information for selecting a relay terminal;
  • a receiving unit configured to receive terminal capability information reported by the terminal after the terminal determines that the user meets the condition of being the relay terminal according to the parameter information;
  • a selecting unit configured to select a relay terminal from the respective terminals to perform communication according to the terminal capability information reported by each terminal in the coverage of the base station signal.
  • the sending unit is specifically configured to:
  • the terminal After the terminal determines that it can become a relay terminal according to the power capacity and/or the reference signal received power, the terminal receives a relay initialization request message sent by the terminal for requesting to become a relay terminal;
  • a system information block message is returned to the terminal.
  • the sending unit is specifically configured to:
  • Periodically broadcast system information block messages Periodically broadcast system information block messages.
  • the sending unit is further configured to:
  • the parameter information for selecting the relay terminal includes a reference signal receiving power threshold value and a threshold value of the number of times the cell changes within a preset time.
  • the parameter information used for selecting the relay terminal further includes at least one of the following information:
  • the power threshold value including a first threshold value corresponding to the executable resource scheduling, and a second threshold value corresponding to the remote terminal that can serve the coverage of the base station signal And corresponding to a third threshold value that can only serve the terminal within the signal coverage of the base station;
  • the terminal capability information includes at least one of the following information:
  • Terminal power information capability information for resource scheduling, reference signal received power information, and maximum number of remote terminals that can be served.
  • the sending unit is further configured to: before sending the system information block message to the terminal, acquire a priority of the current remote terminal's relay demand and/or the relay request;
  • the terminal may determine whether it satisfies the condition of becoming the relay terminal according to the parameter information, and report the terminal capability information to the time when the terminal information is satisfied.
  • the base station enables the base station to select an optimal terminal as the relay terminal from the terminal reporting the information, thereby completing the process of relay initialization, so that the terminal can perform relay communication as a relay terminal, filling the blank of the existing protocol specification. It is convenient for relay terminals and base stations to provide better relay services for remote terminals.
  • FIG. 1 is a schematic flow chart of a first embodiment of a method for communicating according to the present invention
  • FIG. 2 is a schematic diagram of signaling interaction of a second embodiment of a method for communicating according to the present invention
  • FIG. 3 is a schematic diagram of signaling interaction of a third embodiment of a method for communicating according to the present invention.
  • FIG. 4 is a schematic diagram of signaling interaction of a fourth embodiment of a method for communicating according to the present invention.
  • FIG. 5 is a schematic flowchart diagram of a fifth embodiment of a method for communicating according to the present invention.
  • Figure 6 is a schematic diagram showing the composition of a first embodiment of the terminal of the present invention.
  • Figure 7 is a schematic diagram showing the composition of a second embodiment of the terminal of the present invention.
  • FIG. 8 is a schematic diagram of the composition of a base station according to an embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of a first embodiment of a method for communication according to the present invention.
  • the method includes the following steps:
  • the terminal acquires a System Information Block (SIB) message sent by the base station.
  • SIB System Information Block
  • the system information block message includes parameter information for selecting a relay terminal. These parameter information can be used as a criterion for the base station to select a relay terminal.
  • the parameter information used for selecting the relay terminal includes a reference signal receiving power (RSRP) threshold value and a threshold value of the number of times the cell changes within a preset time.
  • RSRP reference signal receiving power
  • RSRP is one of the key parameters of the LTE network that can represent the wireless signal strength and one of the physical layer measurement requirements, and is the average value of the signal power received on all resource particles (RE) carrying the reference signal within a certain symbol.
  • the terminal can be used as a relay terminal only when the RSRP value of the terminal reaches a certain threshold.
  • the number of cell changes in the preset time period can be used to characterize the stability of the terminal. If it changes too much within the preset time, such as 24 hours, if it exceeds the threshold, it will not meet the standard of the relay terminal. Only when the threshold is lower than the set threshold, it is better to be stable.
  • the terminal provides a relay service.
  • the two thresholds may be set by the device manufacturer when the device is shipped from the factory or provide a number of setting options for the user to select, or may be customized by the user, which is not limited in the embodiment of the present invention.
  • the parameter information used for selecting the relay terminal may further include at least one of the following information:
  • the power threshold value including a first threshold value corresponding to the executable resource scheduling, and a second threshold value corresponding to the remote terminal that can serve the coverage of the base station signal And corresponding to a third threshold value that can only serve the terminal within the signal coverage of the base station;
  • a link between D2D terminals is defined as a secondary link, and two resource allocation modes are defined: a scheduling mode and a resource pool optional mode.
  • the resource allocation may be performed in any manner according to the configuration of the base station; when the resource pool self-selection mode is adopted, the resource pool information is controlled by the base station through Radio Resource Control (RRC).
  • RRC Radio Resource Control
  • SIB18 sets and broadcasts the resource pool information of the terminal within the coverage by means of broadcast.
  • the base station can also set a power threshold value for screening, and the power threshold value can also be stepped. For example, it is divided into three power thresholds, which respectively correspond to different levels of capabilities. When the power of the terminal reaches different thresholds, the base station can select the terminal as a suitable relay terminal according to its capability.
  • the base station can also select the terminal by setting a threshold number of remote terminals for the service.
  • the terminal can monitor whether the remote terminal in the coverage of the model exceeds its service capability. If it exceeds, the initialization of the relay terminal may not be performed, or the relay initialization may be performed, but the distance is excluded during the relay service. Remote terminal with far or weak signal.
  • the base station sets the number of services that must be met in the reference information, the terminal must meet the number threshold requirement before it can be selected by the base station as the relay terminal.
  • the above parameter information may be separately defined, or may be defined in any combination, thereby enabling flexible selection and filtering of whether the terminal can become a relay terminal.
  • step S102 The terminal determines, according to the parameter information, whether it satisfies a condition of becoming a relay terminal. If yes, step S103 is performed, otherwise no processing is required.
  • the terminal can perform comparison and matching according to the parameter information. If the terminal can satisfy all the conditions, the relay initialization step can be continued. Otherwise, the terminal does not have the capability of becoming a relay terminal, and no relay initialization is required.
  • the number of terminals in the coverage of the base station signal may be zero or one or more, and the number of terminals having the relay capability may also be zero, one or multiple.
  • the terminal may be notified to the base station that the number of terminals that meet the requirements is greater than two and the number of relay terminals that meet the current relay requirement is less than or equal to the requirements.
  • the base station can select or allocate each terminal according to the terminal capability information reported by each terminal. For example, there are two qualified terminals, but the capability information of the terminal A is superior to the terminal B, and only one terminal A is needed to meet the relay requirement of the remote terminal, and the base station can select the terminal A from the terminal.
  • the base station can select terminal A and terminal B as relay terminals; if terminal a's capability is stronger than terminal B, and terminal A's b capability If it is weaker than the terminal B, it can determine which terminal to select as the relay terminal according to the dependence of the remote terminal's relay requirement on the a capability and the b capability.
  • the terminal capability information includes at least one of the following information:
  • Terminal power information capability information for resource scheduling, reference signal received power information, and maximum number of remote terminals that can be served.
  • the terminal power information serves as the basis of the relay service, and has a very important role. Even if the other capabilities of the terminal are strong, such as high signal quality, the number of remote terminals that can be served is large, but if the power is insufficient to support the relay service, Then you still have to discard when you choose. For the power to meet the demand and the ability to schedule resources, the PSRP is high, and the maximum number of remote terminals that can be served can be preferentially selected as the relay terminal.
  • Obtaining a parameter for selecting a relay terminal by acquiring a system information block message sent by the base station
  • the information can be determined by the terminal according to the parameter information, and the terminal can report the terminal capability information to the base station, so that the base station can select the optimal terminal as the relay terminal from the terminal reporting the information.
  • the process of relay initialization is completed, so that the terminal can perform relay communication as a relay terminal, which fills the gap of the existing protocol specification, and facilitates the relay terminal and the base station to provide better relay service for the remote terminal.
  • the architecture of the entire communication system includes a base station, a terminal 1 and a terminal 2, wherein the terminal 1 is provided with a relay.
  • the terminal of the capability can complete the relay initialization after the process described in this embodiment, and performs functions such as data forwarding by the relay terminal.
  • Terminal 2 is a remote terminal and has a relay requirement.
  • the interaction process of the three includes the following steps:
  • the terminal 1 predetermines whether it can become a relay terminal based on the power capacity and/or the reference signal received power.
  • the terminal 1 can determine the data according to the current data, and can also perform the determination according to the historical data, which is not limited in the embodiment of the present invention.
  • a relay initialization request message for requesting to become a relay terminal is transmitted to the base station.
  • the base station responds to the relay request initialization message and returns a system information block message to the terminal 1.
  • the terminal 1 determines whether it satisfies the condition of becoming a relay terminal based on the parameter information included in the system information block message.
  • the terminal capability information is reported to the base station.
  • the base station selects a relay terminal from the respective terminals to perform communication according to the terminal capability information reported by each terminal in the signal coverage range.
  • the base station feeds back an RRC connection reset message.
  • Terminal 1 becomes a relay terminal.
  • a remote terminal that is informed of its signal coverage can provide relay services.
  • the terminal since the terminal needs to perform two judgments, firstly, the pre-judgment of the relay condition is first performed, and the relay initialization request message is actively reported to the base station to inform the base station of its own relay initialization tendency, so that the relay establishment process is performed.
  • the architecture of the entire communication system includes a base station, a terminal 1 and a terminal 2, wherein the terminal 1 is provided with a relay.
  • the terminal of the capability can complete the relay initialization after the process described in this embodiment, and performs functions such as data forwarding by the relay terminal.
  • Terminal 2 is a remote terminal and has a relay requirement.
  • the interaction process of the three includes the following steps:
  • the terminal 1 listens to the system information block message periodically broadcast by the base station.
  • the base station periodically broadcasts a system information block message.
  • the terminal 1 determines whether it satisfies the condition of becoming a relay terminal based on the parameter information included in the system information block message.
  • the terminal capability information is reported to the base station.
  • the base station selects a relay terminal from the respective terminals to perform communication according to the terminal capability information reported by each terminal in the signal coverage range.
  • the base station feeds back an RRC Connection Reset message.
  • Terminal 1 becomes a relay terminal.
  • a remote terminal that is informed of its signal coverage can provide relay services.
  • the terminal does not need to make two judgments, that is, relative to the second embodiment, the pre-judgment process can be saved, and only the SIB message broadcast by the base station is monitored, and the parameter information carried therein is used to determine whether it conforms to the relay. If the requirements are met, and the terminal capability information of the terminal is fed back to the base station, the process brought by the terminal pre-judging process and the corresponding energy consumption can be reduced.
  • FIG. 4 is a schematic diagram of signaling interaction according to a fourth embodiment of a method for communicating according to the present invention.
  • the architecture of the entire communication system includes a base station, a terminal 1 and a terminal 2, wherein the terminal 1 is a terminal having a relay capability, and after the process described in this embodiment, the relay initialization can be completed. Following the terminal to perform data forwarding and other functions.
  • Terminal 2 is a remote terminal and has a relay requirement.
  • the interaction process of the three includes the following steps:
  • the terminal 1 predetermines whether it can become a relay terminal based on the power capacity and/or the reference signal received power.
  • the terminal 1 determines whether it satisfies the condition of becoming a relay terminal based on the parameter information included in the system information block message.
  • the terminal capability information is reported to the base station.
  • the base station selects a relay terminal from the respective terminals to perform communication according to the terminal capability information reported by each terminal in the signal coverage range.
  • the base station feeds back an RRC connection reset message.
  • Terminal 1 becomes a relay terminal.
  • a remote terminal that is informed of its signal coverage can provide relay services.
  • the terminal that performs the relay condition pre-determination process does not actively send a relay initialization request message to the base station to indicate its relay tendency, but listens to the SIB message broadcast by the base station, and then responds, triggering according to the parameter.
  • the flow of information for the second judgment Compared with the second embodiment, although the speed of the relay establishment process is reduced due to the fact that the terminal does not actively inform the base station of the relaying tendency, the consumption caused by the reported message of the terminal can be reduced, and between the initialization speed of the relay and the consumption of the terminal. A balance has been achieved.
  • the method before the terminal acquires the system information block message sent by the base station, the method further includes:
  • the priority of the request can be understood as the urgency of the relay task. The higher the priority, the more urgent the relay task needs to be processed as soon as possible.
  • the terminal can select whether to perform the “relay condition pre-judgment according to the information and the capability information of the terminal itself.
  • the mechanism for returning the SIB message according to the relay request initialization message may be correspondingly opened, thereby implementing the spirit of the above three relay initialization methods. Live switching.
  • the relay capability terminal can enable the function of the relay pre-judgment according to the number of the relay request that is triggered, and the base station can correspondingly open the management function of the relay initialization request message, and the system is converted into the first method by the fourth embodiment.
  • the mode in the second embodiment for example, the current system performs the mode in the second embodiment, but the relay requirement of the remote terminal is gradually reduced, and the remaining power of the terminal having the relay capability is not sufficient, then the system
  • the terminal having the relay capability can turn off the function of the relay pre-judging according to the number of the initiating relay request that is monitored, and the base station can also correspondingly close the management function of the relay initialization request, and the system is converted into the mode in the second embodiment to The manner in the fourth embodiment performs relay initialization, thereby implementing flexible switching in various modes.
  • FIG. 5 is a schematic flowchart of a fifth embodiment of a method for communication according to the present invention.
  • the method includes the following steps:
  • the base station sends a system information block message to the terminal.
  • the system information block message includes parameter information for selecting a relay terminal.
  • the parameter information used for selecting the relay terminal includes a reference signal receiving power threshold value and a threshold value of the number of times the cell changes within a preset time.
  • the parameter information used for selecting the relay terminal further includes at least one of the following information:
  • the power threshold value including a first threshold value corresponding to the executable resource scheduling, and a second threshold value corresponding to the remote terminal that can serve the coverage of the base station signal And corresponding to a third threshold value that can only serve the terminal within the signal coverage of the base station;
  • the sending, by the base station, the system information block message to the terminal includes:
  • the terminal After the terminal determines that it can become a relay terminal according to the power capacity and/or the reference signal received power, the terminal receives a relay initialization request message sent by the terminal for requesting to become a relay terminal;
  • a system information block message is returned to the terminal.
  • the base station periodically broadcasts a system information block message.
  • the specific interaction process between the base station and the terminal may refer to the second embodiment shown in FIG. 2 to FIG. 4 of the present invention.
  • the embodiment is to the fourth embodiment, and details are not described herein again.
  • the base station receives a relay initialization request message exceeding a preset number of times within a preset time period, the period of the broadcast system information block message is extended. Thereby, excessive terminals are prevented from transmitting the relay initialization request, and the power consumption of the base station and the terminal is reduced.
  • the base station After the terminal determines, according to the parameter information, that the self-satisfaction condition is the relay terminal, the base station receives the terminal capability information reported by the terminal.
  • the terminal capability information includes at least one of the following information:
  • Terminal power information capability information for resource scheduling, reference signal received power information, and maximum number of remote terminals that can be served.
  • the method before the base station sends the system information block message to the terminal, the method further includes:
  • FIG. 6 it is a schematic diagram of a composition of a first embodiment of a terminal according to the present invention.
  • the terminal includes:
  • the acquiring unit 100 is configured to acquire a system information block message sent by the base station, where the system information block message includes parameter information for selecting a relay terminal;
  • the determining unit 200 is configured to determine, according to the parameter information, whether the terminal satisfies a condition that becomes a relay terminal;
  • the reporting unit 300 is configured to: if the terminal meets the condition of being a relay terminal, report the terminal capability information to the base station, so that the base station selects the terminal capability information according to the terminal capability information reported by each terminal in the signal coverage range.
  • the relay terminal communicates.
  • the obtaining unit 100 is specifically configured to:
  • the terminal can be a relay terminal, sending a relay initialization request message for requesting to become a relay terminal to the base station;
  • the obtaining unit 100 is specifically configured to:
  • the obtaining unit 100 is specifically configured to:
  • the terminal can become a relay terminal, the system information block message broadcast by the base station is monitored.
  • the parameter information used for selecting the relay terminal includes a reference signal receiving power threshold value and a threshold value of the number of times the cell changes within a preset time.
  • the parameter information used for selecting the relay terminal further includes at least one of the following information:
  • the power threshold value including a first threshold value corresponding to the executable resource scheduling, and a second threshold value corresponding to the remote terminal that can serve the coverage of the base station signal And corresponding to a third threshold value that can only serve the terminal within the signal coverage of the base station;
  • the terminal capability information includes at least one of the following information:
  • Terminal power information capability information for resource scheduling, reference signal received power information, and maximum number of remote terminals that can be served.
  • FIG. 7 it is a schematic diagram of a composition of a second embodiment of the terminal according to the present invention.
  • the terminal further includes:
  • a determining unit 400 configured to: after the terminal acquires the system information block message sent by the base station, listen to a relay request of the remote terminal in the coverage of the terminal signal, and record information corresponding to the relay request, where The information corresponding to the relay request includes the number of remote terminals that initiate the relay request and/or the priority of the relay request;
  • the above obtaining unit 100, the determining unit 200, the reporting unit 300, and the determining unit 400 may be independent
  • the setting unit 100, the determining unit 200, the reporting unit 300 or the determining unit 400 may be separately set in hardware form independently of the processor of the terminal, and the setting form may be in the form of a microprocessor; It is embedded in the processor of the terminal in hardware, and can also be stored in the memory of the terminal in software, so that the processor of the terminal invokes the above obtaining unit 100, the determining unit 200, the reporting unit 300, and the determining unit. 400 corresponding operation.
  • the obtaining unit 100 and the reporting unit 300 can also be used as an interface circuit of the terminal, and can be integrated with the determining unit 200 or the determining unit 400, or can be independently set.
  • the determining unit 200 may be a processor of the terminal, and the functions of the obtaining unit 100, the reporting unit 300, and the determining unit 400 may be embedded.
  • the processor it can also be set separately from the processor, or can be stored in the memory in the form of software, and the function is called by the processor.
  • the embodiment of the invention does not impose any limitation.
  • the above processor may be a central processing unit (CPU), a microprocessor, a single chip microcomputer, or the like.
  • FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the base station includes:
  • a sending unit 500 configured to send a system information block message to the terminal, where the system information block message includes parameter information for selecting a relay terminal;
  • the receiving unit 600 is configured to receive the terminal capability information reported by the terminal after the terminal determines that the user meets the condition of being the relay terminal according to the parameter information;
  • the selecting unit 700 is configured to select a relay terminal from the respective terminals to perform communication according to the terminal capability information reported by each terminal in the coverage of the base station signal.
  • the sending unit 500 is specifically configured to:
  • the terminal After the terminal determines that it can become a relay terminal according to the power capacity and/or the reference signal received power, the terminal receives a relay initialization request message sent by the terminal for requesting to become a relay terminal;
  • a system information block message is returned to the terminal.
  • the sending unit 500 is specifically configured to:
  • Periodically broadcast system information block messages Periodically broadcast system information block messages.
  • the sending unit 500 is further configured to:
  • Extending the broadcast if a relay initialization request message exceeding a preset number of times is received within a preset time period The period of the system information block message.
  • the parameter information used for selecting the relay terminal includes a reference signal receiving power threshold value and a threshold value of the number of times the cell changes within a preset time.
  • the parameter information used for selecting the relay terminal further includes at least one of the following information:
  • the power threshold value including a first threshold value corresponding to the executable resource scheduling, and a second threshold value corresponding to the remote terminal that can serve the coverage of the base station signal And corresponding to a third threshold value that can only serve the terminal within the signal coverage of the base station;
  • the terminal capability information includes at least one of the following information:
  • Terminal power information capability information for resource scheduling, reference signal received power information, and maximum number of remote terminals that can be served.
  • the sending unit 500 is further configured to: before sending the system information block message to the terminal, acquire a priority of the current remote terminal's relay demand and/or the relay request;
  • the foregoing sending unit 500, the receiving unit 600, and the selecting unit 700 may exist independently or may be integrated.
  • the sending unit 500, the receiving unit 600, or the selecting unit 700 may be separately set in hardware form independently of the processor of the base station, and the setting form may be It is in the form of a microprocessor; it can also be embedded in the processor of the base station in hardware form, and can also be stored in the memory of the base station in software, so that the processor of the base station calls the above sending unit 500 to receive The operations of unit 600 and selection unit 700.
  • the sending unit 500 and the receiving unit 600 can also be used as interface circuits of the base station, and can be integrated with the selecting unit 700 or independently.
  • the selecting unit 700 may be a processor of the base station, and the functions of the sending unit 500 and the receiving unit 600 may be embedded in the processor. It can also be set independently of the processor, or it can be stored in the memory in the form of software, and its function can be called by the processor.
  • the embodiment of the invention does not impose any limitation.
  • the above processor can It is a central processing unit (CPU), a microprocessor, a single chip microcomputer, and the like.
  • the present invention has the following advantages:
  • the terminal may determine whether it satisfies the condition of becoming the relay terminal according to the parameter information, and report the terminal capability information to the time when the terminal information is satisfied.
  • the base station enables the base station to select an optimal terminal as the relay terminal from the terminal reporting the information, thereby completing the process of relay initialization, so that the terminal can perform relay communication as a relay terminal, filling the blank of the existing protocol specification. It is convenient for relay terminals and base stations to provide better relay services for remote terminals.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de communication comprenant les étapes suivantes : un terminal acquiert un message de bloc d'informations système envoyé par une station de base, le message de bloc d'informations système contenant des informations de paramètres pour sélectionner un terminal relais ; le terminal détermine s'il remplit lui-même une condition pour servir de terminal relais, d'après les informations de paramètres ; et si le terminal remplit la condition pour servir de terminal relais, il rapporte des informations de capacité à la station de base, de sorte que la station de base sélectionne un terminal relais parmi divers terminaux pour exécuter une communication d'après les informations de capacité du terminal rapportées par les divers terminaux à l'intérieur d'une plage de couverture du signal. L'invention concerne également un terminal et une station de base. La présente invention permet à un terminal d'être initialisé comme terminal relais et de pouvoir relayer ainsi des communications.
PCT/CN2015/100267 2015-08-14 2015-12-31 Procédé de communication, terminal, et station de base WO2017028462A1 (fr)

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