WO2017166115A1 - 数据传输的方法、基站及终端设备 - Google Patents

数据传输的方法、基站及终端设备 Download PDF

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Publication number
WO2017166115A1
WO2017166115A1 PCT/CN2016/077842 CN2016077842W WO2017166115A1 WO 2017166115 A1 WO2017166115 A1 WO 2017166115A1 CN 2016077842 W CN2016077842 W CN 2016077842W WO 2017166115 A1 WO2017166115 A1 WO 2017166115A1
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WO
WIPO (PCT)
Prior art keywords
base station
terminal device
relay node
relay
information
Prior art date
Application number
PCT/CN2016/077842
Other languages
English (en)
French (fr)
Inventor
曾元清
Original Assignee
广东欧珀移动通信有限公司
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 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to CN201680080725.3A priority Critical patent/CN108605379B/zh
Priority to US16/071,036 priority patent/US10849037B2/en
Priority to JP2018544100A priority patent/JP6761044B2/ja
Priority to KR1020187023675A priority patent/KR20180125455A/ko
Priority to EP16895896.5A priority patent/EP3399835A4/en
Priority to PCT/CN2016/077842 priority patent/WO2017166115A1/zh
Priority to TW106110881A priority patent/TWI725157B/zh
Publication of WO2017166115A1 publication Critical patent/WO2017166115A1/zh
Priority to US17/037,278 priority patent/US11463931B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/16Performing reselection for specific purposes
    • H04W36/165Performing reselection for specific purposes for reducing network power consumption
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/03Reselecting a link using a direct mode connection
    • H04W36/033Reselecting a link using a direct mode connection in pre-organised networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/34Reselection control
    • H04W36/38Reselection control by fixed network equipment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005Transmission of information for alerting of incoming communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/23Manipulation of direct-mode connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/005Discovery of network devices, e.g. terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/04Interfaces between hierarchically different network devices
    • H04W92/10Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular, to a method, a base station, and a terminal device for data transmission.
  • Traditional mobile communication generally adopts a cellular network-based communication method. Specifically, in the cellular network, when the source terminal needs to transmit data to the target terminal, the source terminal first needs to establish a connection with the base station, and then sends the data of the source terminal to the target terminal via the base station.
  • LTE Long Term Evolution
  • R12 Device to Device
  • D2D Device to Device
  • the terminal can directly communicate with other terminals by using resources allocated by the base station.
  • the entire D2D process can be roughly divided into a D2D discovery process and a D2D communication process.
  • the D2D terminal detects the discovery signals broadcast by other D2D terminals, thereby detecting the presence of other D2D terminals in a close range and identifying them. Identity information of other D2D terminals.
  • D2D terminals can perform various forms of data exchange such as voice call or multimedia information sharing at close range.
  • Release 13 (Release 13, R13) of LTE introduces a D2D-based terminal relay technology. That is, D2D cooperative relay communication technology.
  • D2D cooperative relay communication technology when the terminal is in an environment without network coverage, or the network coverage of the terminal is poor, the terminal can use other terminals in the network coverage as a springboard to access the base station (or access network).
  • a terminal that is a springboard may be referred to as a relay terminal, or a relay node.
  • the transmitting terminal may be based on a direct link (Sidelink, SL) between the transmitting terminal and the relay terminal, and a Uu interface between the relay terminal and the base station (including downlink (DL) and uplink (Uplink, UL)), thereby performing data exchange with the base station through the relay terminal.
  • SL direct link
  • DL downlink
  • Uplink Uplink
  • the terminal performs SL and Uu selection based on the quality of the signal.
  • the base station broadcasts a threshold value for evaluating the signal.
  • the terminal selects and requests to establish a connection with the relay node; when the Uu interface signal is higher than With this threshold, the terminal stops using the relay node to establish a connection.
  • terminals in addition to terminals in the traditional sense, more and more types of terminals, such as smart bracelets, wireless televisions, smart glasses, robots, watches and other wearable devices, may appear. These special types of terminals are less expensive and can support different bandwidths and transmit powers.
  • the status of different relay terminals may be different. For example, a relay terminal whose power or load reaches a certain threshold may not be able to provide access services for a new terminal.
  • the link selection and reselection in the terminal direct connection technology is completely based on the terminal decision, and the network side only partially controls the threshold value and resource allocation of the broadcast signal, and cannot be based on the terminal. The actual situation is adjusted, and the communication method is not flexible enough.
  • the embodiment of the invention provides a data transmission method, which can perform link switching on communication between the terminal device and the base station, and the communication mode can be flexibly implemented.
  • a method of data transmission comprising:
  • the base station sends a first notification message to the terminal device, where the first notification message is used to indicate that the terminal device communicates with the base station by using the first relay node.
  • the base station may instruct the terminal device to switch the cellular link to the direct link through the first relay node, thereby ensuring the communication quality between the terminal device and the base station.
  • the method before the determining, by the base station, that the terminal device communicates with the base station by using the first relay node, the method further includes:
  • Determining, by the base station, that the terminal device communicates with the base station by using the first relay node according to the terminal information including:
  • the base station determines, according to the terminal information and the relay information, that the terminal device communicates with the base station by using a first relay node.
  • the relay information includes at least one of power information, load information, and status information of the first relay node.
  • the base station is configured according to Determining, by the terminal information, that the terminal device communicates with the base station by using a first relay node, including:
  • the base station receives a first feedback message of the first relay node, where the first feedback message is used to indicate that the first relay node agrees to be the relay.
  • the base station may send the determining criterion to the first relay node, so that the first relay node determines according to the determining criterion. Whether as the relay.
  • the determining criterion may include a preset power threshold and/or a preset load threshold.
  • the determining, by the base station, that the terminal device communicates with the base station by using the first relay node, according to the terminal information includes:
  • the base station receives a third feedback message of the first relay node, where the third feedback message is used to indicate that the first relay node agrees to be the relay.
  • the method further includes: sending, by the base station, the first relay node And a second notification message, where the second notification message is used to indicate that the terminal device is to communicate with the base station by using the first relay node.
  • the method further includes: sending, by the base station, the first relay node And following the resource configuration information, so that the first relay node uses the relay resource to assist the communication between the terminal device and the base station.
  • the method further includes: sending, by the base station, the terminal device Radio resource configuration information, so that the terminal device uses the radio resource to perform the communication.
  • the base station may further include: the base station sending configuration information to the terminal device, where the configuration information is used to instruct the terminal device to perform signal quality measurement.
  • the terminal information includes at least one of: relay request information; signal quality information between the terminal device and the first relay node; and the terminal device Signal quality information with the base station; service priority or link tendency of the terminal device.
  • a method of data transmission including:
  • the terminal device sends the terminal information to the base station
  • the terminal device receives a first notification message sent by the base station, where the first notification message is used to indicate that the terminal device communicates with the base station by using the first relay node, where the first notification is The message is determined by the base station according to the terminal information.
  • the terminal device receives the notification of the base station, and according to this, the cellular link is switched to the direct link through the first relay node, so that the communication quality between the terminal device and the base station can be ensured.
  • the method may further include: the terminal device receiving the radio resource configuration information sent by the base station; the terminal device using the radio resource, The first relay node communicates with the base station.
  • the method further includes: the terminal device, by using the pre-assigned radio resource, to communicate with the base station by using the first relay node.
  • the method further includes: the terminal device receiving configuration information sent by the base station; and the terminal device performing signal quality measurement according to the configuration information.
  • a method of data transmission including:
  • the first relay node If the first relay node agrees to be the relay, the first relay node sends a first feedback message to the base station, where the first feedback message is used to indicate that the first relay node agrees to The relay, or
  • the first relay node rejects the relay, the first relay node to the base
  • the station sends a second feedback message, the second feedback message is used to indicate that the first relay node rejects the relay.
  • the base station and the first relay node perform coordinated interaction, and the first relay node can assist the base station to switch the cellular link of the terminal device to the direct link through the first relay node.
  • the first relay node may reject the request and the base station switches the cellular link of the terminal device to another direct link that does not pass through the first relay node. Thereby, the communication quality between the terminal device and the base station can be ensured.
  • the method may further include: determining, by the first relay node, whether to agree to be the relay according to the determining criterion.
  • the method further includes: the first relay node receives configuration information sent by the base station, and the configuration information includes the determining criterion.
  • the determining criterion may include a preset power threshold and/or a preset load threshold.
  • the first relay node determines, according to the determining criterion, whether to agree to be the relay, and includes: the first relay node according to the determining criterion and the first relay
  • the relay information of the node determines whether or not to agree as the relay.
  • the relay information may include at least one of power information, load information, and status information of the first relay node.
  • the method may further include: the first relay node receiving the base station sending And a second notification message, where the second notification message is used to indicate that the terminal device is to communicate with the base station by using the first relay node.
  • the method may further include: the first relay node receiving the base station sending Trunk resource configuration information; the first relay node uses the relay resource to assist the communication between the terminal device and the base station.
  • a data transmission method including:
  • the terminal device communicates with the base station by using the first link according to the first notification message.
  • the terminal device may switch the direct link through the first relay node to the first link according to the notification of the first relay node, thereby ensuring the communication quality between the terminal device and the base station. the amount.
  • the terminal device before the terminal device receives the first notification message sent by the first relay node, the terminal device communicates with the base station by using the first relay node.
  • the first link is a cellular link between the terminal device and the base station, and the first notification message is used to indicate the terminal device Communication with the base station over the cellular link.
  • the communicating with the base station by using the first link includes: receiving, by the terminal device, an access resource sent by the first relay node, where the access resource is the first The relay node applies to the base station; the terminal device accesses the base station according to the access resource; and after the access, communicates with the base station by using the cellular link.
  • the first link is a direct link between the terminal device and a second relay node, and the first notification message is used to indicate The terminal device communicates with the base station through the direct link.
  • the first notification message is used to indicate that the terminal device selects one of the multiple links as the first link, and passes the first Communicating with the base station; wherein the plurality of links include a direct link between the terminal device and a second relay node, and a cellular chain between the terminal device and the base station road.
  • the communicating with the base station by using the first link includes:
  • the terminal device Determining, by the terminal device, the first link as a cellular link between the terminal device and the base station according to a signal strength between the terminal device and the base station, and passing the first link Communicating with the base station.
  • the communicating with the base station by using the first link includes:
  • the communicating with the base station by using the first link may include: the signal strength of the terminal device according to the terminal device and the second relay node, and according to the second Relay information of the relay node, determining that the first link is a direct link between the terminal device and the second relay node, and communicating with the base station by using the first link .
  • the relay information includes at least one of power information, load information, and status information of the second relay node.
  • a data transmission method including:
  • the first relay node determines to stop as a relay between the terminal device and the base station
  • the first relay node sends a first notification message to the terminal device, where the first notification message is used to indicate that the terminal device communicates with the base station by using a first link.
  • the relay node may determine the path switching between the terminal device and the base station, and switch the direct link of the relay node to the first link, so as to ensure the communication quality between the terminal device and the base station.
  • the first relay node determines to stop as a relay between the terminal device and the base station, and includes: the first relay node determines to stop as the terminal device and the base station according to the relay information.
  • the relay information includes at least one of power information, load information, and status information of the first relay node.
  • the first link is a cellular link between the terminal device and the base station.
  • the method further includes: the first relay node sending a request message to the base station, where the request message is used to replace the terminal device to request an access resource from the base station; Receiving, by the base station, the access resource, where the first relay node sends the access resource to the terminal device, so that the terminal device accesses the base station according to the access resource.
  • the first link is a direct link between the terminal device and the second relay node.
  • the first notification message is used to indicate that the terminal device selects one of the multiple links as the first link, and passes the The first link communicates with the base station; wherein the multiple links include a direct link between the terminal device and a second relay node, and the terminal device and the base station Inter-cell link.
  • the sixth aspect provides a base station, including a receiving unit, a sending unit, and a determining unit, which can be used to implement the data transmission method in any of the foregoing first aspect or the first aspect.
  • a terminal device including a transmitting unit, a receiving unit, and a communication unit.
  • a method for implementing data transmission in any of the foregoing second aspect or the second aspect; or the terminal device can be used to implement data transmission in any of the foregoing fourth or fourth aspects Methods.
  • a relay node is provided, and the relay node is a terminal device that implements a relay function.
  • the relay node includes a receiving unit, a transmitting unit, and a determining unit, and the relay node can be used to implement the method for data transmission in any of the foregoing third or third aspects.
  • the relay node includes a receiving unit, a sending unit, and a determining unit, and the relay node can be used to implement the method for data transmission in any of the implementations of the fifth aspect or the fifth aspect.
  • a ninth aspect provides a base station, including a receiver, a transmitter, and a processor, which can be used to implement the data transmission method in any of the foregoing first aspect or the first aspect.
  • a terminal device including a transmitter, a receiver, and a processor.
  • a method for implementing data transmission in any of the foregoing second aspect or the second aspect; or the terminal device can be used to implement data transmission in any of the foregoing fourth or fourth aspects Methods.
  • a relay node refers to a terminal device that implements a relay function, and the relay node includes a receiver, a transmitter, and a processor.
  • the relay node can be used to implement the method for data transmission in any of the foregoing third or third aspects; or the relay node can be used to implement any of the foregoing fifth or fifth aspects The method of data transmission.
  • a computer readable storage medium storing a program causing a base station to perform the first aspect described above, and any of its various implementations for The method of data transmission.
  • a thirteenth aspect a computer readable storage medium storing a program, the program causing a terminal device to perform the second aspect described above, and any of the various implementations thereof The method of data transmission; or the program causes the terminal device to perform the fourth aspect described above, and any of its various implementations for a method of data transmission.
  • a computer readable storage medium in a fourteenth aspect, storing a program causing a relay node to perform the third aspect described above, and any of its various implementations A method for data transmission; or the program causes the relay node to perform the fifth aspect described above, and any of its various implementations for a method of data transmission.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for data transmission according to an embodiment of the present invention.
  • FIG. 3 is another schematic flowchart of a method for data transmission according to an embodiment of the present invention.
  • FIG. 4 is another schematic flowchart of a method for data transmission according to an embodiment of the present invention.
  • FIG. 5 is another schematic flowchart of a method for data transmission according to an embodiment of the present invention.
  • FIG. 6 is another schematic flowchart of a method for data transmission according to an embodiment of the present invention.
  • FIG. 7 is another schematic flowchart of a method for data transmission according to an embodiment of the present invention.
  • FIG. 8 is a structural block diagram of a base station according to an embodiment of the present invention.
  • FIG. 9 is a structural block diagram of a base station according to another embodiment of the present invention.
  • Figure 10 is a schematic block diagram of a system chip in accordance with one embodiment of the present invention.
  • Figure 11 is a block diagram showing the structure of a terminal device according to an embodiment of the present invention.
  • Figure 12 is a block diagram showing the structure of a terminal device according to another embodiment of the present invention.
  • Figure 13 is a schematic structural view of a system chip according to another embodiment of the present invention.
  • FIG. 14 is a structural block diagram of a relay node according to an embodiment of an embodiment of the present invention.
  • Figure 15 is a block diagram showing the structure of a relay node according to another embodiment of the present invention.
  • Figure 16 is a schematic structural view of a system chip of another embodiment of the present invention.
  • FIG. 17 is a structural block diagram of a relay node according to an embodiment of another embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • the base station may also be referred to as a network device or a network side device, and the base station may be a base station (Base Transceiver Station, BTS) in GSM or CDMA, or may be a base station (NodeB) in WCDMA.
  • BTS Base Transceiver Station
  • NodeB base station
  • the present invention is not limited to this, and may be an evolved Node B (eNB or eNodeB) in LTE, or a base station device in a future 5G network.
  • the terminal device may communicate with one or more core networks through a Radio Access Network (RAN), and the terminal device may be referred to as an access terminal and a user.
  • RAN Radio Access Network
  • UE User Equipment
  • subscriber unit subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user equipment.
  • the terminal device can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), and a wireless communication function.
  • FIG. 1 is a schematic diagram of a scenario of cellular communication and D2D communication.
  • the terminal device 11, the terminal device 12, the terminal device 13, and the base station 21 are shown in FIG.
  • the terminal device 12 can communicate with the base station 21 through the path 2 (ie, the cellular link).
  • the terminal device 12 may communicate with the base station 21 via the terminal device 11 as a relay node through the path 1 (i.e., the direct link or the relay link).
  • the path 1 i.e., the direct link or the relay link.
  • the terminal device 12 can perform path selection based on the threshold value of the signal transmitted by the base station 21 broadcasted.
  • the terminal device 12 is a special type of terminal, for example, the terminal device 12 is a wearable device that cannot communicate with the base station, and when the terminal device 12 is connected to the network through the relay node, the terminal directly connected to the prior art can be reused as much as possible.
  • Technology and terminal relay technology are used.
  • the link selection and reselection are completely based on the terminal decision.
  • the network side only partially controls the quality of the broadcast signal and the resource allocation, and cannot completely control.
  • coverage wearable devices coverage is not the only requirement for a relay link
  • some terminals want to be able to save power or aggregate traffic through the relay link, so the signal Good or bad is not the only criterion for judging the use of relay links. Therefore, this patent attempts to better control the selection and reselection of the terminal relay link through the interaction of the network and the relay terminal.
  • FIG. 2 is a flow chart of a method of data transmission in accordance with an embodiment of the present invention.
  • the method shown in Figure 2 includes:
  • the base station 21 transmits configuration information to the terminal device 12.
  • the base station 21 can transmit the configuration information in the form of a broadcast. In this way, all terminal devices within the coverage of the base station 21 can receive the configuration information. For example, another terminal device 11 can also receive the configuration information.
  • S201 may be performed.
  • S201 may be performed.
  • S201 can be understood as that the base station 21 configures the terminal device 12 to perform signal quality measurement. Specifically, the base station 21 configures the terminal device 12 to perform Uu and/or SL measurement.
  • the Uu refers to an interface between the terminal device 12 and the base station 21
  • the SL refers to an interface between the terminal device 12 and other terminal devices.
  • the terminal device 12 reports the terminal information to the base station 21.
  • the terminal device 12 may perform signal quality measurement after receiving the configuration information.
  • the terminal device 12 can determine the signal quality information between the terminal device 12 and the base station 21.
  • the terminal device 12 may further initiate a D2D discovery process, thereby determining signal quality information between the terminal device 12 and other terminal devices in the vicinity thereof, for example, the terminal device 12 may determine with another terminal.
  • another terminal device 11 is referred to as a first relay node 11.
  • the terminal information may include signal quality information between the terminal device 12 and the base station 21, and/or include signal quality information between the terminal device 12 and the first relay node 11.
  • the terminal information may further include a service priority or a link preference of the terminal device.
  • the priority of the service may include that the priority of the first service is 1, and the priority of the second service is 2.
  • the link propensity may include: the first service tends to be used in the middle of the first relay node 11 Following the link, the second service tends to use a relay link through another relay node, the third service tends to use a cellular link with the base station, and so on.
  • the service priority or the link preference may be that the user preference is set in advance on the terminal device 12. That is to say, it can be set in advance by the user according to his or her own preferences or business needs.
  • the step of S201 is optional.
  • the terminal device 12 may perform S202 according to its own needs. For example, in the process in which the terminal device 12 communicates with the base station 21 through the cellular link, if link switching is desired, S202 may be performed. For example, if the terminal device 12 measures that the signal quality between the terminal device 12 and the base station 21 is lower than a preset signal threshold, then S202 is performed to request to switch the cellular link to the SL.
  • the terminal device 12 detects that the link bandwidth between the terminal device 12 and the base station 21 does not satisfy a specific service (for example, service A), perform S202, requesting that the transmission link of the service A be used by the cellular link. Switch to SL.
  • a specific service for example, service A
  • the terminal information includes relay request information.
  • the relay request information indicates that the terminal device 12 desires to use the relay node to perform subsequent communication with the base station 21.
  • the terminal information may further include the aforementioned signal quality information, service priority or link tendency even if S201 is not executed. That is to say, the terminal device 12 can actively initiate signal quality measurement to obtain the aforementioned signal quality information.
  • the base station 21 can receive terminal information of a plurality of terminal devices.
  • the first relay node 11 transmits the relay information to the base station 21.
  • the relay information may include at least one of power amount information, load information, and status information of the first relay node 11.
  • the status information may include a network status of the first relay node 11 and the like. For example, the network status can indicate whether the data is open.
  • the relay information indicates whether the first relay node 11 can serve as a relay terminal, and other terminals (such as the terminal device 12) are connected to the base station 21.
  • the base station 21 can receive relay information transmitted by a plurality of terminal devices.
  • S202 and S203 are not limited in the embodiment of the present invention. For example, S202 may be performed first, and then S203 may be performed; or S203 may be performed first and then S202 may be performed; or S202 and S203 may be simultaneously performed.
  • the terminal device 12 may also send the relay information of the terminal device 12 to the base station 21, including the power information, the load information, and the status of the terminal device 12. At least one of the information. That is to say, the terminal device 12 can also serve as a relay for other terminals.
  • the first relay node 11 may also send the terminal information of the first relay node 11 to the base station 21, including the signal quality between the first relay node 11 and the base station 21. Information, etc. That is to say, the terminal device 11 can also request other terminals as a relay between the terminal device 11 and the base station 21.
  • the base station 21 determines, according to the terminal information received in S202, that the terminal device 12 performs subsequent communication with the base station 21 through the first relay node 11.
  • the base station 21 can select the first relay node 11 as a relay for communication between the terminal device 12 and the base station 21 for the terminal device 12 based on the terminal information.
  • the base station 21 may be based on the signal quality between the terminal device 12 and the base station 21, the signal quality between the terminal device 12 and the first relay node 11, and the signal quality between the first relay node 11 and the base station 21.
  • the first relay node 11 is determined as a relay for communication between the terminal device 12 and the base station 21. For example, if the signal quality between the terminal device 12 and the base station 21 is weak (for example, below a certain preset first threshold), but the signal quality between the terminal device 12 and the first relay node 11 and The signal quality between the first relay node 11 and the base station 21 is strong (for example, higher than a certain preset second threshold), then the base station 21 can determine the first relay node 11 as the terminal device 12 and the base station 21 Relay between communications.
  • the base station 21 may determine, according to the service priority or the link preference of the terminal device, the first relay node 11 as a relay of communication between the terminal device 12 and the base station 21. For example, suppose the priority of the first service is 1, if the signal quality between the terminal device 12 and the base station 21 is weak, but the signal quality between the terminal device 12 and the first relay node 11 and the first relay The signal quality between the node 11 and the base station 21 is strong, and the base station 21 can determine the relay of the first relay node 11 as the communication of the first service between the terminal device 12 and the base station 21. To ensure the transmission of the first service with priority 1.
  • the base station 21 can determine The first relay node 11 serves as a relay for communication between the terminal device 12 and the base station 21.
  • the base station 21 may determine, according to the relay request information, the relay of the first relay node 11 as a communication between the terminal device 12 and the base station 21.
  • the base station 21 can perform S204 based on the location information and/or the signal quality information. For example, if the base station 21 determines that the first relay node 11 is located near the terminal device 12, and the signal quality between the first relay node 11 and the base station 21 is due to A certain preset threshold may determine that the first relay node 11 acts as a relay for communication between the terminal device 12 and the base station 21.
  • the base station can optimize the relay link selection according to the user preferences and service requirements of the terminal device, and can select a better transmission link for the terminal device.
  • the base station 21 may determine, according to the terminal information received in S202 and the relay information received in S203, the first relay node 11 as a relay of communication between the terminal device 12 and the base station 21. For example, if the signal quality between the terminal device 12 and the first relay node 11 is strong (for example, higher than a certain preset second threshold), and the power of the first relay node 11 is high (for example, high) At a predetermined power threshold, the base station 21 can determine the first relay node 11 as a relay for communication between the terminal device 12 and the base station 21.
  • the base station 21 sends a first notification message to the terminal device 12, where the first notification message is used to instruct the terminal device 12 to communicate with the base station 21 through the first relay node 11.
  • the identifier of the first relay node 11 may be included in the first notification message.
  • the first notification message can be understood as indicating that the terminal device 12 switches the data service from the Uu interface to the SL interface. That is, the terminal device 12 is instructed to transfer the transmission link of the data service from the cellular link between the terminal device 12 and the base station 21 to the Sidelink between the terminal device 12 and the first relay node 11.
  • S206 may also be included:
  • the base station 21 sends a second notification message to the first relay node 11, where the second notification message is used to indicate that the terminal device 12 is to communicate with the base station 21 through the first relay node 11.
  • the second notification message is used to instruct the first relay node 11 as a relay for communication between the terminal device 12 and the base station 21.
  • the identifier of the terminal device 12 may be included in the second notification message.
  • S207 may also be included:
  • the base station 21 transmits radio resource configuration information to the terminal device 12, so that the terminal device 12 performs the communication using the radio resource.
  • the base station 21 can transmit the radio resource configuration to the terminal device 12, and further, the terminal device 12 uses the radio resource in the process of communicating with the base station 21 through the first relay node 11.
  • radio resource in S207 is performed between the terminal device 12 and the first relay node 11. D2D transmission resources for communication.
  • S208 may also be included:
  • the base station 21 sends the relay resource configuration information to the first relay node 11 so that the first relay node 11 uses the relay resource to assist the communication between the terminal device 12 and the base station 21.
  • S205 and S207 can be performed simultaneously, and the first notification message in S205 and the radio resource configuration in S207 can be indicated in the same message.
  • S206 and S208 can be performed simultaneously, and the second notification message in S206 and the relay resource configuration in S208 can be indicated in the same message.
  • S205 and S206 is not limited in the embodiment of the present invention.
  • S206 may be performed first and then S205 may be performed.
  • the order of execution of S207 and S208 is not limited in the embodiment of the present invention.
  • S208 may be performed first and then S207 may be performed.
  • S209 can be performed.
  • the terminal device 12 communicates with the base station 21 through the first relay node 11.
  • the terminal device 12 communicates with the base station 21 through a direct link (SL) between the terminal device 12 and the first relay node 11.
  • SL direct link
  • the terminal device 12 may send uplink data to the first relay node 11 through a direct link with the first relay node 11, and then forward the uplink data to the base station by the first relay node 11. twenty one.
  • the terminal device 12 may use the radio resource to communicate with the first relay node 11. That is to say, the terminal device 12 uses the radio resource for data transmission in the process of communicating with the base station through the first relay node 11.
  • the terminal device 12 may communicate with the first relay node 11 using a pre-assigned radio resource. That is, the terminal device 12 performs data transmission using the pre-assigned radio resource in the process of communicating with the base station through the first relay node 11.
  • the first relay node 11 may assist the communication between the terminal device 12 and the base station 21 by using the relay resources configured in S208.
  • the base station can perform the determination of the relay link according to the terminal information, so that the transmission between the terminal device and the base station is switched from the cellular link to the direct link, thereby ensuring the terminal device selection.
  • Better transmission links ensure efficient transmission.
  • the method may include:
  • the base station 21 sends a first request message to the first relay node 11, where the first request is cancelled.
  • the information is used to request the first relay node 11 as a relay between the terminal device 12 and the base station 21.
  • the first relay node 11 can determine whether it can be used as a relay between the terminal device 12 and the base station 21 based on the relay information.
  • the first relay node 11 can perform the determination according to a predefined determination criterion.
  • the predefined determination criteria may include a preset power threshold and/or a preset load threshold, and the like.
  • the predefined criterion may be pre-configured on the first relay node 11, or the predefined criterion may be sent by the base station 21 through configuration information. It can be understood that the configuration information in S201 can include the predefined determination criteria. Alternatively, the configuration information in S201 may include a preset power threshold and/or a preset load threshold.
  • the first relay node 11 determines whether to allow the terminal device 12 to communicate with the base station 21 using the relay (ie, the first relay node 11) according to the judgment criterion and the relay information.
  • the first relay node 11 may perform the determination according to the preset power threshold and the power of the first relay node 11. If the amount of power of the first relay node 11 is higher than the power threshold, it may be determined that the result of the determination is permission. If the amount of power of the first relay node 11 is lower than the power threshold, it may be determined that the result of the determination is rejection.
  • the first relay node 11 may perform determination according to a preset load threshold and a load of the first relay node 11. If the load of the first relay node 11 is lower than the load threshold, it may be determined that the result of the determination is permission. If the load of the first relay node 11 is higher than the load threshold, it may be determined that the result of the determination is rejection.
  • the terminal device 12 is allowed to communicate with the base station 21 using the relay (i.e., the first relay node 11).
  • the first relay node 11 sends a first feedback message to the base station 21, where the first feedback message is used to indicate that the first relay node 11 agrees to be the relay.
  • the first feedback message may also be considered as a relay acknowledgement message of the first relay node 11.
  • the base station 21 After receiving the first feedback message of the first relay node 11, the base station 21 performs S205 again. That is to say, after receiving the relay confirmation of the first relay node 11, the base station 21 executes S205 again.
  • S203 is optional, that is, in S204, the base station 21
  • the first relay node 11 can be determined as a relay based on the terminal information.
  • S206 through S208 are optional. That is, S206 to S208 in this embodiment may not be executed.
  • the method includes:
  • the base station 21 sends configuration information.
  • the terminal device 12 reports the terminal information to the base station 21.
  • the terminal device 12 may initiate a D2D discovery process to determine signal quality information between the terminal device 12 and other terminal devices in the vicinity thereof, for example, the terminal device 12 may determine with another terminal device.
  • the signal quality information between 11 and the terminal device 12 can also determine signal quality information with another terminal device 13.
  • another terminal device 11 is referred to as a first relay node 11
  • another terminal device 13 is referred to as a second relay node 13.
  • the terminal information may further include signal quality information between the terminal device 12 and the base station 21, and/or, including signal quality information between the terminal device 12 and the first relay node 11, and the terminal device 12 and the second medium. Following the signal quality information between the nodes 13.
  • the terminal information may also include a service priority or a link preference.
  • the base station 21 receives the relay information transmitted by the first relay node 11, and the base station 21 receives the relay information transmitted by the second relay node 13.
  • the relay information transmitted by the first relay node 11 may include at least one of the power information, the load information, and the status information of the first relay node 11.
  • the relay information transmitted by the second relay node 13 may include at least one of the power information, the load information, and the status information of the first relay node 11.
  • S202 and S2030 are not limited in the embodiment of the present invention. For example, S202 may be performed first, and then S2030 may be performed; or S2030 may be performed first and then S202 may be performed; or S202 and S2030 may be simultaneously executed.
  • S2030 in this embodiment is optional, that is, S2030 may not be executed.
  • the base station 21 determines, based on the terminal information and the relay information, the relay of the second relay node 13 as the communication between the terminal device 12 and the base station 21.
  • the base station 21 can sort the plurality of relay nodes according to the terminal information and the relay information.
  • the base station 21 may sort the plurality of relay nodes according to the terminal information. For example, sorting may be performed based on location information, signal quality information between a plurality of relay nodes and the base station 21, and the like.
  • the optimal selection among the plurality of relay nodes is the second relay node 13, and the suboptimal selection is the first relay node 11.
  • the base station 21 can determine a plurality of relay paths, each of which can serve as an optional path between the terminal device 12 and the base station 21, and the base station 21 can sort the plurality of relay paths.
  • the relay path through the second relay node 13 is the optimal path
  • the relay path through the first relay node 11 is the sub-optimal path.
  • the base station 21 can determine the second relay node 13 as a relay.
  • the base station 21 sends a second request message to the second relay node 13, and the second request message is used to request the second relay node 13 to be a relay between the terminal device 12 and the base station 21.
  • the second relay node 13 can determine whether it can be used as a relay between the terminal device 12 and the base station 21 according to the relay information of the second relay node 13.
  • the second relay node 13 can perform the determination according to a predefined determination criterion.
  • the predefined determination criteria may include a preset power threshold and/or a preset load threshold, and the like.
  • the predefined criterion may be pre-configured on the second relay node 13, or the predefined criterion may be sent by the base station 21 through configuration information. It can be understood that the configuration information in S201 can include the predefined determination criteria. Alternatively, the configuration information in S201 may include a preset power threshold and/or a preset load threshold.
  • the second relay node 13 determines whether to allow the terminal device 12 to use the relay (ie, the second relay node 13) and the base station 21 according to the relay information of the second relay node 13. Communicate.
  • the terminal device 12 is not allowed to use the relay (ie, The second relay node 13) communicates with the base station 21.
  • the second relay node 13 sends a second feedback message to the base station 21, where the second feedback message is used to indicate that the second relay node 13 rejects the relay.
  • the base station 21 Since the second relay node 13 does not allow the terminal device 12 to perform a relay process therethrough, the base station 21 needs to select a new relay node. That is to say, the base station 21 needs to trigger a new round of relay selection process.
  • the base station 21 determines, according to the terminal information and the relay information, the relay of the first relay node 11 as the communication between the terminal device 12 and the base station 21.
  • the process is similar to S2031. If the base station 21 determines the optimal relay path, that is, the second relay node 13, in S2031, the base station 21 determines the suboptimal relay path, that is, the first relay node, in S204. 11.
  • the base station 21 sends a third request message to the first relay node 11, and the third request message is used to request the first relay node 11 to be a relay between the terminal device 12 and the base station 21.
  • the first relay node 11 can determine whether it can be used as a relay between the terminal device 12 and the base station 21 based on the relay information.
  • the first relay node 11 can perform the determination according to a predefined determination criterion.
  • the predefined determination criteria may include a preset power threshold and/or a preset load threshold, and the like.
  • This step S2034 is similar to S2041 in the foregoing embodiment of FIG. 3. To avoid repetition, details are not described herein again.
  • the first relay node 11 sends a third feedback message to the base station 21, where the third feedback message is used to indicate that the first relay node 11 agrees to be the relay.
  • This step S2034 is similar to S2042 in the foregoing embodiment of FIG. 3. To avoid repetition, details are not described herein again.
  • the base station 21 can execute S205.
  • the base station and the relay node exchange and coordinate, and the terminal information can be combined to optimize the relay link selection, and a better transmission link can be selected for the terminal device.
  • the base station may determine an optimized relay link for the terminal device according to the terminal information or according to the terminal information and the relay information, and ensure data transmission of the relay link of the terminal device.
  • FIG. 5 is a flow chart of a method of data transmission in accordance with another embodiment of the present invention.
  • the method shown in Figure 5 includes:
  • the first relay node 11 determines to stop as the middle between the terminal device 12 and the base station 21. Following.
  • the terminal device 12 communicates with the base station 21 through the first relay node 11 before S501. That is, before S501, the first relay node 11 is a relay between the terminal device 12 and the base station 21.
  • the terminal device 12 communicates with the base station 21 through the direct link between the terminal device 12 and the first relay node 11.
  • the method illustrated in FIG. 5 may be performed after any of the embodiments of FIGS. 2 through 4 described above.
  • S501 can also be understood that the first relay node 11 determines that the direct link (SL) with the terminal device 12 will be terminated.
  • the terminal device 12 may perform signal measurement and transmit the measurement information to the first relay node 11. Accordingly, in S501, the first relay node 11 can determine to stop the relay between the terminal device 12 and the base station 21 based on the measurement information.
  • the measurement information may be Reference Signal Received Power (RSRP).
  • the first relay node 11 may determine to stop as a relay between the terminal device and the base station according to the relay information.
  • the relay information includes at least one of power amount information, load information, and status information of the first relay node 11.
  • the first relay node 11 may determine to stop as the relay according to a preset determination criterion.
  • the predefined determination criteria may include a preset power threshold and/or a preset load threshold, and the like.
  • the preset judgment criterion may be pre-configured on the first relay node 11, or the preset judgment preparation may be sent by the base station 21 to the first relay node 11 through configuration information.
  • the first relay node 11 may It is determined that it is no longer a relay between the terminal device 12 and the base station 21.
  • the first relay node 11 when the first relay node 11 is unwilling to continue as a relay between the terminal device 12 and the base station 21, it may be determined to stop as a relay between the terminal device and the base station.
  • the first relay node 11 sends a first notification message to the terminal device 12, where the first notification message is used to instruct the terminal device 12 to communicate with the base station 21 through the first link.
  • the first notification message is used to inform the terminal device 12 that the terminal device 12 will be released with the first medium Following the direct link between the nodes 11, and instructing the terminal device 12 to communicate with the base station 21 over the first link.
  • the first link in S502 may be a cellular link between the terminal device 12 and the base station 21.
  • the terminal device 12 communicates with the base station 21 through the first link according to the first notification message.
  • the terminal device 12 communicates with the base station 21 via the cellular link between the terminal device 12 and the base station 21 in accordance with the first notification message received in S502.
  • the method may further include:
  • the first relay node 11 sends a request message to the base station 21, and the request is used to replace the terminal device 12 to request the access resource to the base station 21.
  • the request message may also include indication information that the terminal device 12 will communicate with the base station 21. That is, the first relay node 11 can inform the base station 21 that the terminal device 12 wishes to communicate with it.
  • the base station 21 sends an access resource to the first relay node 11.
  • the base station 21 transmits an access resource to the first relay node 11 according to the request message.
  • the base station 21 may send an access resource configuration to the first relay node 11, and the first relay node 11 determines an access resource according to the access resource configuration.
  • the first relay node 11 sends the access resource to the terminal device 12.
  • the first relay node 11 may transmit the access resource configuration received from the base station 21 to the terminal device 12.
  • S503 can be performed. And, in S503, the terminal device 12 accesses the base station 21 according to the access resource, and after the access, communicates with the base station 21 through the cellular link.
  • the terminal device 12 can perform the process of random access at the base station 21 according to the access resources. And, after the random access is completed, communication with the base station 21 is performed through the cellular link.
  • the first relay node determines the transmission link for the terminal device, and the first relay node replaces the terminal device to apply for the access resource to the base station, thereby ensuring the transmission chain of the terminal device.
  • the switching of the road from the direct link to the cellular link ensures the efficiency of data transmission.
  • the first link in S502 may be a direct link between the terminal device 12 and the second relay node 13.
  • S504 can be performed.
  • the terminal device 12 communicates with the base station 21 through a direct link between the terminal device 12 and the second relay node 13.
  • the second relay node 13 serves as a relay of communication between the terminal device 12 and the base station 21.
  • the first relay node determines the transmission link for the terminal device, and can ensure that the transmission link of the terminal device is from the direct link (the terminal device 12 and the first relay node 11)
  • the switching between the direct link (link) to another direct link ensures the efficiency of data transmission.
  • the first notification message in S502 is used to indicate that the terminal device 12 selects one of the multiple links as the first link, and performs the first link with the base station 21.
  • the plurality of links include a direct link between the terminal device and a second relay node, and a cellular link between the terminal device and the base station.
  • the first notification message may also instruct the terminal device 12 to select one of the multiple links as the first link.
  • the multiple links herein may include a cellular link, a direct link through the second relay node, and may also include a direct link through other relay nodes, and the like.
  • the terminal device 12 determines a transmission link.
  • the terminal device 12 re-determines the transmission link with the base station 21 after receiving the first notification message.
  • the transmission link re-determined by the terminal device 12 is the first link.
  • the terminal device 12 may select one of the plurality of links as the first link.
  • the terminal device 12 may re-determine the transmission link based on the signal strength information.
  • the terminal device 12 can determine to communicate via a cellular link with the base station 21 based on the signal strength between the terminal device 12 and the base station 21. For example, if the signal quality between the terminal device 12 and the base station 21 is better than a certain predetermined signal threshold, it can be determined that the communication is directly with the base station 21 through the cellular link with the base station 21. Wherein, in S503, the terminal device 12 can determine the signal strength with the base station 21 by signal detection. That is, the terminal device 12 can determine that the first link is a cellular link.
  • the terminal device 12 can determine the cellular link between the base station 21 and the base station 21 according to the signal strength between the terminal device 12 and the base station 21 and the signal strength between the terminal device 12 and the second relay node 13.
  • the base station 21 directly communicates. For example, if the signal quality between the terminal device 12 and the base station 21 is better than the signal quality between the terminal device 12 and the second relay node 13, it can be determined that the cellular link with the base station 21 is directly connected to the base station 21 Communication.
  • the terminal device 12 may perform a D2D discovery process, determine a terminal (eg, the second relay node 13) capable of performing D2D communication therewith, and further determine a signal strength with the second relay node 13.
  • the terminal device 12 can determine to directly communicate with the base station 21 through a direct link with the second relay node 13 according to the signal strength between the terminal device 12 and the second relay node 13. For example, if the signal strength between the terminal device 12 and the second relay node 13 is better than a certain preset signal threshold, it is determined that the direct link between the terminal device 12 and the second relay node 13 is directly performed with the base station 21. Communication. That is, the terminal device 12 can determine that the direct link between the terminal device 12 and the second relay node 13 is the first link.
  • the terminal device 12 can determine the direct connection with the second relay node 13 according to the signal strength between the terminal device 12 and the second relay node 13 and according to the relay information of the second relay node 13.
  • the link is directly in communication with the base station 21.
  • the terminal device 12 may determine the pass according to the signal strength between the terminal device 12 and the base station 21, the signal strength between the terminal device 12 and the second relay node 13, and according to the relay information of the second relay node 13.
  • the direct link between the second relay node 13 and the base station 21 directly communicates. For example, if the signal strength between the terminal device 12 and the second relay node 13 is better than the signal strength between the terminal device 12 and the base station 21, the direct link between the terminal device 12 and the second relay node 13 can be determined. Direct communication with the base station 21.
  • the relay information may include at least one of the power information, the load information, and the status information of the second relay node 13.
  • the relay information may be sent by the second relay node 13 to the first relay node 11 through the direct link between the second relay node 13 and the first relay node 11, and by the first relay node 11 It is transmitted to the terminal device 12 through a direct link between the first relay node 11 and the terminal device 12.
  • the terminal device 12 communicates with the base station 21 through the link determined by S505.
  • the terminal device 12 communicates with the base station 21 via the first link.
  • the terminal device 12 communicates with the base station 21 through a cellular link between the terminal device 12 and the base station 21.
  • the terminal device 12 communicates with the base station 21 through a cellular link between the terminal device 12 and the base station 21.
  • S503 in the foregoing embodiment of FIG. 5. It can be understood that the method shown in any of the embodiments of FIGS. 2 to 4 can be performed after this embodiment. That is, switching from a cellular link to a direct link is achieved.
  • the terminal device 12 passes the terminal device 12 and the second relay.
  • the direct link between the nodes 13 communicates with the base station 21. Specifically, reference may be made to the description of S504 in the foregoing embodiment of FIG. 6.
  • the first relay node instructs the terminal device to switch to another link (the first link or the second link), and the terminal device performs link selection according to the actual situation. It is possible to ensure that the transmission link of the terminal device is from the direct link (the direct link between the terminal device 12 and the first relay node 11) to the cellular link (the direct link between the terminal device 12 and the base station 21) Switching, either from a direct link (a direct link between the terminal device 12 and the first relay node 11) to another direct link (a straight line between the terminal device 12 and the second relay node 13) The switching of the link) ensures the efficiency of data transmission.
  • the switching of the communication link between the terminal device and the base station can be optimized by the base station or by the interaction between the base station and the relay node. Specifically, it may be switched from a cellular link to a direct link (ie, a relay link) according to an actual situation, or switched from a direct link to a cellular link, or switched from one direct link to another.
  • the direct link can select a better transmission link for the terminal device, thereby ensuring the communication quality between the terminal device and the base station.
  • FIG. 8 is a structural block diagram of a base station according to an embodiment of the present invention.
  • the base station 21 shown in FIG. 8 includes a receiving unit 211, a transmitting unit 212, and a determining unit 213.
  • the receiving unit 211 is configured to receive terminal information sent by the terminal device.
  • a determining unit 212 configured to determine, according to the terminal information received by the receiving unit 211, that the terminal device communicates with the base station by using a first relay node;
  • the sending unit 213 is configured to send a first notification message to the terminal device, where the first notification message is used to indicate that the terminal device communicates with the base station by using the first relay node.
  • the base station may instruct the terminal device to switch the cellular link to the first one. Following the direct link of the node, the quality of communication between the terminal device and the base station is ensured.
  • the receiving unit 211 is further configured to receive the relay information sent by the first relay node.
  • the determining unit 212 is configured to determine, according to the terminal information and the relay information, that the terminal device communicates with the base station by using the first relay node.
  • the relay information includes at least one of power information, load information, and status information of the first relay node.
  • the sending unit 213 is further configured to send, to the first relay node, a first request message, where the first request message is used to request the first relay node to be the A relay between the terminal device and the base station.
  • the receiving unit 211 is further configured to receive a first feedback message of the first relay node, where the first feedback message is used to indicate that the first relay node agrees to be the relay.
  • the sending unit 212 may be further configured to: send a determining criterion to the first relay node, so that the first relay node determines whether to be the relay according to the determining criterion.
  • the determination criterion may include a preset power threshold and/or a preset load threshold.
  • the sending unit 212 is further configured to send a second request message to the second relay node, where the second request message is used to request the second relay node to be the terminal device. Relaying with the base station.
  • the receiving unit 211 is further configured to receive a second feedback message of the second relay node, where the second feedback message is used to indicate that the second relay node rejects the relay.
  • the sending unit 212 is further configured to send, to the first relay node, a third request message, where the third request message is used to request the first relay node to be the middle between the terminal device and the base station.
  • the receiving unit 211 is further configured to receive a third feedback message of the first relay node, where the third feedback message is used to indicate that the first relay node agrees to be the relay.
  • the sending unit 212 is further configured to: send, to the first relay node, a second notification message, where the second notification message is used to indicate that the terminal device is to pass the first relay node and the The base station communicates.
  • the sending unit 212 is further configured to: send the relay resource configuration information to the first relay node, so that the first relay node uses the relay resource to assist the terminal device and the base station The communication between.
  • the sending unit 212 is further configured to: send the radio resource configuration information to the terminal device, so that the terminal device uses the radio resource to perform the communication.
  • the terminal information in the embodiment of the present invention includes at least one of the following: a relay request information; signal quality information between the terminal device and the first relay node; and the terminal device and the device The signal quality information between the base stations; the service priority or link tendency of the terminal device.
  • the sending unit 212 is further configured to: send configuration information to the terminal device, where the configuration information is used to instruct the terminal device to perform measurement of signal quality.
  • the receiving unit 211 may be implemented by a receiver
  • the sending unit 212 may be implemented by a transmitter
  • the determining unit 213 may be implemented by a processor.
  • the base station 21 may include a processor 901, a receiver 902, a transmitter 903, and a memory 904.
  • the memory 904 can be used to store code and the like executed by the processor 901.
  • the processor 901 is configured to execute the code stored by the memory 904.
  • bus system 905 which in addition to the data bus includes a power bus, a control bus, and a status signal bus.
  • FIG. 10 is a schematic block diagram of a system chip in accordance with one embodiment of the present invention.
  • the system chip 1000 of FIG. 10 includes an input interface 1010, an output interface 1020, at least one processor 1030, and a memory 1040.
  • the input interface 1010, the output interface 1020, the processor 1030, and the memory 1040 are connected by a bus 1050.
  • the processor 1030 is configured to execute code in the memory 1040, and when the code is executed, the processor 1030 implements the method performed by the base station in any of the embodiments of FIGS. 2 through 4.
  • the base station 21 shown in FIG. 8 or the base station 21 shown in FIG. 9 or the system chip 1000 shown in FIG. 10 can implement the processes implemented by the base station in any of the foregoing method embodiments of FIG. 2 to FIG. , no longer repeat them here.
  • FIG. 11 is a block diagram showing the structure of a terminal device according to an embodiment of the present invention.
  • the terminal device 12 shown in FIG. 11 includes a transmitting unit 121, a receiving unit 122, and a communication unit 123.
  • the sending unit 121 is configured to send terminal information to the base station
  • the receiving unit 122 is configured to receive a first notification message that is sent by the base station, where the first notification message is used to indicate that the terminal device communicates with the base station by using the first relay node, where the A notification message is determined by the base station according to the terminal information.
  • the terminal device receives the notification of the base station, and according to this, the cellular link is switched to the direct link through the first relay node, so that the communication quality between the terminal device and the base station can be ensured.
  • the receiving unit 122 is further configured to receive radio resource configuration information sent by the base station.
  • the communication unit 123 is configured to use the radio resource to communicate with the base station by using the first relay node.
  • the communication unit 123 is configured to communicate with the base station by using the first relay node by using a pre-assigned radio resource.
  • the terminal device 12 shown in FIG. 11 may further include a measurement unit.
  • the receiving unit 122 may be further configured to receive configuration information sent by the base station.
  • the measuring unit is configured to perform a measurement of the signal quality based on the configuration information.
  • the sending unit 121 may be implemented by a transmitter
  • the receiving unit 122 may be implemented by a receiver
  • the communication unit 123 may be implemented by a processor.
  • the terminal device 12 may include a processor 1201, a receiver 1202, a transmitter 1203, and a memory 1204.
  • the memory 1204 can be used to store code and the like executed by the processor 1201.
  • the processor 1201 is configured to execute the code stored by the memory 1204.
  • bus system 1205 which in addition to the data bus includes a power bus, a control bus, and a status signal bus.
  • FIG. 13 is another schematic structural diagram of a system chip according to an embodiment of the present invention.
  • the system chip 1300 of FIG. 13 includes an input interface 1310, an output interface 1320, at least one processor 1330, and a memory 1340.
  • the input interface 1310, the output interface 1320, the processor 1330, and the memory 1340 are connected by a bus 1350.
  • the processor 1330 is configured to execute code in the memory 1340, and when the code is executed, the processor 1330 implements the method performed by the base station in any of the embodiments of FIGS. 2 through 4.
  • the terminal device 12 shown in FIG. 11 or the terminal device 12 shown in FIG. 12 or the system chip 1300 shown in FIG. 13 can implement the processes implemented by the terminal device in any of the foregoing method embodiments of FIG. 2 to FIG. To avoid repetition, we will not repeat them here.
  • the receiving unit 122 is configured to receive a first notification message sent by the first relay node, where the first notification message is used to indicate that the terminal device communicates with the base station by using the first link.
  • the communication unit 123 is configured to communicate with the base station by using the first link according to the first notification message received by the receiving unit 122.
  • the terminal device may switch the direct link through the first relay node to the first link according to the notification of the first relay node, thereby ensuring the communication quality between the terminal device and the base station. the amount.
  • the communication unit 123 is further configured to communicate with the base station by using the first relay node.
  • the first link is a cellular link between the terminal device and the base station, and the first notification message is used to indicate that the terminal device communicates with the base station by using the cellular link.
  • the receiving unit 122 is further configured to receive an access resource sent by the first relay node, where the access resource is requested by the first relay node to the base station.
  • the communication unit 123 may be specifically configured to access the base station according to the access resource, and communicate with the base station by using the cellular link after the accessing.
  • the first link is a direct link between the terminal device and the second relay node, and the first notification message is used to indicate that the terminal device passes the direct link.
  • the base station communicates.
  • the first notification message is used to instruct the terminal device to select one of the multiple links as the first link, and communicate with the base station by using the first link.
  • the plurality of links include a direct link between the terminal device and a second relay node, and a cellular link between the terminal device and the base station.
  • the communication unit 123 may be configured to: determine, according to a signal strength between the terminal device and the base station, that the first link is a cellular link between the terminal device and the base station, and pass the The first link communicates with the base station.
  • the communication unit 123 may be configured to: determine, according to a signal strength between the terminal device and the second relay node, that the first link is between the terminal device and the second relay node a direct link and communicate with the base station over the first link.
  • the communication unit 123 may be specifically configured to determine the first chain according to a signal strength between the terminal device and the second relay node, and according to relay information of the second relay node.
  • the path is a direct link between the terminal device and the second relay node, and communicates with the base station through the first link.
  • the relay information includes at least one of power information, load information, and status information of the second relay node.
  • the processor 1330 of FIG. 13 implements the method performed by the base station in any of the embodiments of FIGS. 5-7.
  • the terminal device 12 shown in FIG. 11 or the terminal device 12 shown in FIG. 12 or the system chip 1300 shown in FIG. 13 can implement the processes implemented by the terminal device in any of the foregoing method embodiments of FIG. 5 to FIG. To avoid repetition, we will not repeat them here.
  • FIG. 14 is a block diagram showing the structure of a relay node according to an embodiment of the present invention. It can be understood that the relay node is a terminal that implements a relay function.
  • the relay node in FIG. 14 may be the first relay node 11, and includes: a receiving unit 111 and a transmitting unit 112. Further, the first relay node 11 may further include a determining unit 113.
  • the receiving unit 111 is configured to receive a first request message sent by the base station, where the first request message is used to request the first relay node to be a relay between the terminal device and the base station;
  • the sending unit 112 is configured to send a first feedback message to the base station if the first relay node agrees to serve as the relay, where the first feedback message is used to indicate that the first relay node agrees to Relay, or
  • the sending unit 112 is configured to: if the first relay node refuses to be the relay, send a second feedback message to the base station, where the second feedback message is used to indicate that the first relay node rejects the Said relay.
  • the base station and the first relay node perform coordinated interaction, and the first relay node can assist the base station to switch the cellular link of the terminal device to the direct link through the first relay node.
  • the first relay node may reject the request and the base station switches the cellular link of the terminal device to another direct link that does not pass through the first relay node. Thereby, the communication quality between the terminal device and the base station can be ensured.
  • the determining unit 113 is configured to determine, according to the determining criterion, whether to agree to be the relay.
  • the receiving unit 111 is further configured to: receive configuration information sent by the base station, where the configuration information includes the determining criterion.
  • the determining criterion includes a preset power threshold and/or a preset load threshold.
  • the determining unit 113 may be specifically configured to determine, according to the determining criterion and the relay information of the first relay node, whether to agree to be the relay.
  • the relay information includes at least one of power information, load information, and status information of the first relay node.
  • the sending unit 112 sends a first feedback message to the base station
  • the receiving unit 111 is further configured to receive a second notification message sent by the base station, where the second notification message is used to indicate that the terminal device will pass the The first relay node communicates with the base station.
  • the sending unit 112 sends a first feedback message to the base station, and the receiving unit 111, It can also be used to receive the relay resource configuration information sent by the base station.
  • the first relay node 11 may further include a communication unit for assisting the communication between the terminal device and the base station using the relay resource.
  • the receiving unit 111 may be implemented by a receiver
  • the transmitting unit 112 may be implemented by a transmitter
  • the communication unit 113 may be implemented by a processor.
  • the relay node 11 may include a processor 1501, a receiver 1502, a transmitter 1503, and a memory 1504.
  • the memory 1504 can be used to store code and the like executed by the processor 1501.
  • the processor 1501 is configured to execute the code stored by the memory 1504.
  • a bus system 1505 which in addition to the data bus includes a power bus, a control bus, and a status signal bus.
  • FIG. 16 is another schematic structural diagram of a system chip according to an embodiment of the present invention.
  • the system chip 1600 of FIG. 16 includes an input interface 1610, an output interface 1620, at least one processor 1630, and a memory 1640.
  • the input interface 1610, the output interface 1620, the processor 1630, and the memory 1640 are connected by a bus 1650.
  • the processor 1630 is configured to execute code in the memory 1640, and when the code is executed, the processor 1630 implements the method performed by the first relay node in any of the embodiments of FIGS. 2 through 4.
  • the first relay node 11 shown in FIG. 14 or the first relay node 11 shown in FIG. 15 or the system chip 1600 shown in FIG. 16 can implement the first method in any of the foregoing method embodiments of FIG. 2 to FIG.
  • the various processes implemented by the relay node are not repeated here to avoid repetition.
  • FIG. 17 is a block diagram showing the structure of a relay node according to another embodiment of the present invention.
  • the relay node shown in FIG. 17 may be the first relay node 11, and includes a receiving unit 111, a transmitting unit 112, and a determining unit 114.
  • a determining unit 114 configured to determine to stop as a relay between the terminal device and the base station
  • the sending unit 112 is configured to send a first notification message to the terminal device, where the first notification message is used to indicate that the terminal device communicates with the base station by using a first link.
  • the relay node may determine the path switching between the terminal device and the base station, and switch the direct link of the relay node to the first link, so as to ensure the communication quality between the terminal device and the base station.
  • the determining unit 114 is specifically configured to: determine to stop as a relay between the terminal device and the base station according to the relay information.
  • the relay information includes at least one of power information, load information, and status information of the first relay node.
  • the first link is a cellular link between the terminal device and the base station.
  • the sending unit 112 is further configured to send a request message to the base station, where the request message is used to replace the terminal device to request the access resource from the base station.
  • the receiving unit 111 is configured to receive the access resource sent by the base station.
  • the sending unit 112 is further configured to send the access resource to the terminal device, so that the terminal device accesses the base station according to the access resource.
  • the first link is a direct link between the terminal device and a second relay node.
  • the first notification message is used to instruct the terminal device to select one of the multiple links as the first link, and communicate with the base station by using the first link.
  • the plurality of links include a direct link between the terminal device and a second relay node, and a cellular link between the terminal device and the base station.
  • the receiving unit 111 may be implemented by a receiver
  • the transmitting unit 112 may be implemented by a transmitter
  • the determining unit 114 may be implemented by a processor. As shown in Figure 15.
  • the processor 1630 implements the method performed by the first relay node in any of the embodiments of FIGS. 5-7.
  • the first relay node 11 shown in FIG. 17 or the first relay node 11 shown in FIG. 15 or the system chip 1600 shown in FIG. 16 can implement the first method in any of the foregoing method embodiments of FIG. 5 to FIG.
  • the various processes implemented by the relay node are not repeated here to avoid repetition.
  • the processor in the embodiment of the present invention may be an integrated circuit chip with signal processing capability.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM Double Data Rate SDRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Connection Dynamic Random Access Memory
  • DR RAM direct memory bus random access memory
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be indirect coupling through some interface, device or unit.
  • a communication connection which may be in electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本发明实施例提出了一种数据传输的方法,包括:基站接收终端设备发送的终端信息;所述基站根据所述终端信息,确定所述终端设备通过第一中继节点与所述基站进行通信;所述基站向所述终端设备发送第一通知消息,所述第一通知消息用于指示所述终端设备通过所述第一中继节点与所述基站进行通信。本发明实施例中,基站可以指示终端设备将蜂窝链路切换至经过第一中继节点的直连链路,从而保证终端设备与基站之间的通信质量。

Description

数据传输的方法、基站及终端设备 技术领域
本发明实施例涉及通信领域,并且更具体地,涉及一种数据传输的方法、基站及终端设备。
背景技术
传统移动通信一般采用基于蜂窝网的通信方式。具体地,在蜂窝网中,当源终端需要向目标终端传输数据时,该源终端首先需要与基站建立连接,然后经由基站将源终端的数据发送至目标终端。
长期演进(Long Term Evolution,LTE)版本12(Release 12,R12)中引入了设备到设备(Device to Device,D2D)通信技术,也可以称为终端直连技术。在D2D通信技术中,终端可以利用基站分配的资源,与其它终端直接进行通信。
整个D2D过程大致可分为D2D发现过程和D2D通信过程,其中,在D2D发现过程,D2D终端会去检测其他D2D终端广播的发现信号,从而在近距离范围内检测其他D2D终端的存在,并识别其他D2D终端的身份信息。在D2D通信过程中,D2D终端之间可以近距离进行语音通话或多媒体信息共享等多种形式的数据交换。
LTE的版本13(Release 13,R13)引入了基于D2D的终端中继技术。即D2D协作中继通信技术。利用D2D协作中继通信技术,当终端处于无网络覆盖的环境,或终端的网络覆盖较差时,该终端可以将处于网络覆盖中的其他终端作为跳板,接入基站(或接入网络)。作为跳板的终端可以称为中继终端,或中继节点。也就是说,发送终端可以基于发送终端与中继终端之间的直连链路(Sidelink,SL)以及中继终端与基站之间的Uu接口(包括下行(Downlink,DL)与上行(Uplink,UL)),从而通过中继终端与基站进行数据交换。
在现有技术中,终端基于信号好坏进行SL和Uu的选择。基站会广播一个评价信号好坏的门限值,当终端与基站之间的Uu接口信号低于该门限值,则终端会选择并要求与中继节点建立连接;当该Uu接口信号高于该门限值,则终端会停止使用中继节点建立连接。
在未来无线通信系统中,除了传统意义上的终端,会出现越来越多的其他类型的终端,例如,智能手环、无线电视、智能眼镜、机器人、手表等可穿戴设备(wearable device),这些特殊类型的终端成本较低,可以支持不同的带宽和发射功率。此外,在D2D协作中继通信技术,不同中继终端的状态可能不同,例如,电量或负载达到某一阈值的中继终端可能无法为新的终端提供接入服务。
但是,在现有技术中,终端直连技术中的链路选择及重选是完全基于终端决策的,网络侧仅会通过广播信号好坏的门限值以及资源分配进行部分控制,无法根据终端的实际情况进行调整,这样的通信方式不够灵活。
发明内容
本发明实施例提供了一种数据传输的方法,能够对终端设备与基站之间的通信进行链路切换,且该通信方式能够灵活实现。
第一方面,提供了一种数据传输的方法,包括:
基站接收终端设备发送的终端信息;
所述基站根据所述终端信息,确定所述终端设备通过第一中继节点与所述基站进行通信;
所述基站向所述终端设备发送第一通知消息,所述第一通知消息用于指示所述终端设备通过所述第一中继节点与所述基站进行通信。
本发明实施例中,基站可以指示终端设备将蜂窝链路切换至经过第一中继节点的直连链路,从而保证终端设备与基站之间的通信质量。
可选地,在所述基站根据所述终端信息,确定所述终端设备通过第一中继节点与所述基站进行通信之前,所述方法还包括:
所述基站接收所述第一中继节点发送的中继信息;
所述基站根据所述终端信息,确定所述终端设备通过第一中继节点与所述基站进行通信,包括:
所述基站根据所述终端信息以及所述中继信息,确定所述终端设备通过第一中继节点与所述基站进行通信。
其中,所述中继信息包括:所述第一中继节点的电量信息、负载信息、状态信息中的至少一项。
结合第一方面,在第一方面的第一种可能的实现方式中,所述基站根据 所述终端信息,确定所述终端设备通过第一中继节点与所述基站进行通信,包括:
所述基站向所述第一中继节点发送第一请求消息,所述第一请求消息用于请求所述第一中继节点作为所述终端设备与所述基站之间的中继;
所述基站接收所述第一中继节点的第一反馈消息,所述第一反馈消息用于表示所述第一中继节点同意作为所述中继。
可理解,在所述基站接收终端设备发送的终端信息之前,还可以包括:所述基站向所述第一中继节点发送判断准则,以便于所述第一中继节点根据所述判断准则确定是否作为所述中继。其中,所述判断准则可以包括预设的电量阈值和/或预设的负载阈值。
结合第一方面,在第一方面的第二种可能的实现方式中,所述基站根据所述终端信息,确定所述终端设备通过第一中继节点与所述基站进行通信,包括:
所述基站向第二中继节点发送第二请求消息,所述第二请求消息用于请求所述第二中继节点作为所述终端设备与所述基站之间的中继;
所述基站接收所述第二中继节点的第二反馈消息,所述第二反馈消息用于表示所述第二中继节点拒绝作为所述中继;
所述基站向所述第一中继节点发送第三请求消息,所述第三请求消息用于请求所述第一中继节点作为所述终端设备与所述基站之间的中继;
所述基站接收所述第一中继节点的第三反馈消息,所述第三反馈消息用于表示所述第一中继节点同意作为所述中继。
结合第一方面或者上述第一方面的任一可能的实现方式,在第一方面的第三种可能的实现方式中,所述方法还包括:所述基站向所述第一中继节点发送第二通知消息,所述第二通知消息用于指示所述终端设备将通过所述第一中继节点与所述基站进行通信。
结合第一方面或者上述第一方面的任一可能的实现方式,在第一方面的第四种可能的实现方式中,所述方法还包括:所述基站向所述第一中继节点发送中继资源配置信息,以便于所述第一中继节点使用所述中继资源协助所述终端设备与所述基站之间的所述通信。
结合第一方面或者上述第一方面的任一可能的实现方式,在第一方面的第五种可能的实现方式中,所述方法还包括:所述基站向所述终端设备发送 无线资源配置信息,以便于所述终端设备使用所述无线资源进行所述通信。
作为一例,在所述基站接收终端设备发送的终端信息之前,还可以包括:所述基站向所述终端设备发送配置信息,所述配置信息用于指示所述终端设备进行信号质量的测量。
可选地,本发明实施例中,所述终端信息包括以下中的至少一项:中继请求信息;所述终端设备与所述第一中继节点之间的信号质量信息;所述终端设备与所述基站之间的信号质量信息;所述终端设备的业务优先级或链路倾向。
第二方面,提供了一种数据传输的方法,包括:
终端设备向基站发送终端信息;
所述终端设备接收所述基站发送的第一通知消息,所述第一通知消息用于指示所述终端设备通过所述第一中继节点与所述基站进行通信,其中,所述第一通知消息是所述基站根据所述终端信息所确定的。
本发明实施例中,终端设备接收基站的通知,并据此将蜂窝链路切换至经过第一中继节点的直连链路,能够保证终端设备与基站之间的通信质量。
结合第二方面,在第二方面的第一种可能的实现方式中,还可以包括:所述终端设备接收所述基站发送的无线资源配置信息;所述终端设备使用所述无线资源,通过所述第一中继节点与所述基站进行通信。
结合第二方面,在第二方面的第二种可能的实现方式中,还可以包括:所述终端设备使用预先分配的无线资源,通过所述第一中继节点与所述基站进行通信。
可选地,在所述终端设备向基站发送终端信息之前,还包括:所述终端设备接收所述基站发送的配置信息;所述终端设备根据所述配置信息进行信号质量的测量。
第三方面,提供了一种数据传输的方法,包括:
第一中继节点接收基站发送的第一请求消息,所述第一请求消息用于请求所述第一中继节点作为终端设备与所述基站之间的中继;
如果所述第一中继节点同意作为所述中继,所述第一中继节点向所述基站发送第一反馈消息,所述第一反馈消息用于表示所述第一中继节点同意作为所述中继,或
如果所述第一中继节点拒绝作为所述中继,所述第一中继节点向所述基 站发送第二反馈消息,所述第二反馈消息用于表示所述第一中继节点拒绝作为所述中继。
本发明实施例中,由基站与第一中继节点进行协调交互,第一中继节点能够协助基站将终端设备的蜂窝链路切换至经过第一中继节点的直连链路。或者,第一中继节点可以拒绝请求,并由基站将终端设备的蜂窝链路切换至另一不经过第一中继节点的直连链路。从而能够保证终端设备与基站之间的通信质量。
可选地,在所述第一中继节点接收基站发送的第一请求消息之后,还可以包括:所述第一中继节点根据判断准则,判断是否同意作为所述中继。
相应地,可理解,所述方法还包括:所述第一中继节点接收所述基站发送的配置信息,所述配置信息包括所述判断准则。其中,所述判断准则可以包括预设的电量阈值和/或预设的负载阈值。
在一种可能的实现方式中,所述第一中继节点根据判断准则,判断是否同意作为所述中继,包括:所述第一中继节点根据所述判断准则和所述第一中继节点的中继信息,判断是否同意作为所述中继。其中,所述中继信息可以包括所述第一中继节点的电量信息、负载信息、状态信息中的至少一项。
结合第二方面,在另一种可能的实现方式中,在所述第一中继节点向所述基站发送第一反馈消息之后,还可以包括:所述第一中继节点接收所述基站发送的第二通知消息,所述第二通知消息用于指示所述终端设备将通过所述第一中继节点与所述基站进行通信。
结合第二方面,在再一种可能的实现方式中,在所述第一中继节点向所述基站发送第一反馈消息之后,还可以包括:所述第一中继节点接收所述基站发送的中继资源配置信息;所述第一中继节点使用所述中继资源协助所述终端设备与所述基站之间的所述通信。
第四方面,提供了一种数据传输的方法,包括:
终端设备接收第一中继节点发送的第一通知消息,所述第一通知消息用于指示所述终端设备通过第一链路与所述基站进行通信;
所述终端设备根据所述第一通知消息,通过所述第一链路与所述基站进行通信。
本实施例中,终端设备可以根据第一中继节点的通知,将经过第一中继节点的直连链路切换至第一链路,从而保证终端设备与基站之间的通信质 量。
可理解,在所述终端设备接收第一中继节点发送的第一通知消息之前,所述终端设备通过所述第一中继节点与所述基站进行通信。
结合第四方面,在第一种可能的实现方式中,所述第一链路为所述终端设备与所述基站之间的蜂窝链路,所述第一通知消息用于指示所述终端设备通过所述蜂窝链路与所述基站进行通信。
可选地,所述通过所述第一链路与所述基站进行通信,包括:所述终端设备接收所述第一中继节点发送的接入资源,所述接入资源是所述第一中继节点向所述基站申请的;所述终端设备根据所述接入资源,接入所述基站;在所述接入之后,通过所述蜂窝链路与所述基站进行通信。
结合第四方面,在第二种可能的实现方式中,所述第一链路为所述终端设备与第二中继节点之间的直连链路,所述第一通知消息用于指示所述终端设备通过所述直连链路与所述基站进行通信。
结合第四方面,在第三种可能的实现方式中,所述第一通知消息用于指示所述终端设备选择多条链路中的一个作为所述第一链路,并通过所述第一链路与所述基站进行通信;其中,所述多条链路包括所述终端设备与第二中继节点之间的直连链路,以及所述终端设备与所述基站之间的蜂窝链路。
可选地,所述通过所述第一链路与所述基站进行通信,包括:
所述终端设备根据所述终端设备与所述基站之间的信号强度,确定所述第一链路为所述终端设备与所述基站之间的蜂窝链路,并通过所述第一链路与所述基站进行通信。
可选地,所述通过所述第一链路与所述基站进行通信,包括:
所述终端设备根据所述终端设备与所述第二中继节点之间的信号强度,确定所述第一链路为所述终端设备与所述第二中继节点之间的直连链路,并通过所述第一链路与所述基站进行通信。
其中,所述通过所述第一链路与所述基站进行通信,可以包括:所述终端设备根据所述终端设备与所述第二中继节点之间的信号强度,以及根据所述第二中继节点的中继信息,确定所述第一链路为所述终端设备与所述第二中继节点之间的直连链路,并通过所述第一链路与所述基站进行通信。其中,所述中继信息包括:所述第二中继节点的电量信息、负载信息、状态信息中的至少一项。
第五方面,提供了一种数据传输的方法,包括:
第一中继节点确定停止作为终端设备与基站之间的中继;
所述第一中继节点向所述终端设备发送第一通知消息,所述第一通知消息用于指示所述终端设备通过第一链路与所述基站进行通信。
本发明实施例中,中继节点可以确定终端设备与基站之间的路径切换,将经过中继节点的直连链路切换至第一链路,这样能够保证终端设备与基站之间的通信质量。
可选地,所述第一中继节点确定停止作为终端设备与基站之间的中继,包括:所述第一中继节点根据中继信息,确定停止作为所述终端设备与所述基站之间的中继。其中,所述中继信息包括:所述第一中继节点的电量信息、负载信息、状态信息中的至少一项。
结合第五方面,在第五方面的第一种可能的实现方式中,所述第一链路为所述终端设备与所述基站之间的蜂窝链路。
可选地,还可包括:所述第一中继节点向所述基站发送请求消息,所述请求消息用于代替所述终端设备向所述基站请求接入资源;所述第一中继节点接收所述基站发送的所述接入资源;所述第一中继节点将所述接入资源发送至所述终端设备,以便于所述终端设备根据所述接入资源接入所述基站。
结合第五方面,在第五方面的第二种可能的实现方式中,所述第一链路为所述终端设备与第二中继节点之间的直连链路。
结合第五方面,在第五方面的第三种可能的实现方式中,所述第一通知消息用于指示所述终端设备选择多条链路中的一个作为所述第一链路,并通过所述第一链路与所述基站进行通信;其中,所述多条链路包括所述终端设备与第二中继节点之间的直连链路,以及所述终端设备与所述基站之间的蜂窝链路。
第六方面,提供了一种基站,包括接收单元、发送单元和确定单元,能够用于实现上述第一方面或者第一方面的任一实现方式中的数据传输的方法。
第七方面,提供了一种终端设备,包括发送单元、接收单元和通信单元。能够用于实现上述第二方面或者第二方面的任一实现方式中的数据传输的方法;或者,该终端设备能够用于实现上述第四方面或者第四方面的任一实现方式中的数据传输的方法。
第八方面,提供了一种中继节点,该中继节点是指实现中继功能的终端设备。中继节点包括接收单元、发送单元和判断单元,该中继节点能够用于实现上述第三方面或者第三方面的任一实现方式中的数据传输的方法。或者该中继节点包括接收单元、发送单元和确定单元,该中继节点能够用于实现上述第五方面或者第五方面的任一实现方式中的数据传输的方法。
第九方面,提供了一种基站,包括接收器、发送器和处理器,能够用于实现上述第一方面或者第一方面的任一实现方式中的数据传输的方法。
第十方面,提供了一种终端设备,包括发送器、接收器和处理器。能够用于实现上述第二方面或者第二方面的任一实现方式中的数据传输的方法;或者,该终端设备能够用于实现上述第四方面或者第四方面的任一实现方式中的数据传输的方法。
第十一方面,提供了一种中继节点,该中继节点是指实现中继功能的终端设备,中继节点包括接收器、发送器和处理器。该中继节点能够用于实现上述第三方面或者第三方面的任一实现方式中的数据传输的方法;或者该中继节点能够用于实现上述第五方面或者第五方面的任一实现方式中的数据传输的方法。
第十二方面,提供了一种计算机可读存储介质,所述计算机可读存储介质存储有程序,所述程序使得基站执行上述第一方面,及其各种实现方式中的任一种用于数据传输的方法。
第十三方面,提供了一种计算机可读存储介质,所述计算机可读存储介质存储有程序,所述程序使得终端设备执行上述第二方面,及其各种实现方式中的任一种用于数据传输的方法;或者,所述程序使得终端设备执行上述第四方面,及其各种实现方式中的任一种用于数据传输的方法。
第十四方面,提供了一种计算机可读存储介质,所述计算机可读存储介质存储有程序,所述程序使得中继节点执行上述第三方面,及其各种实现方式中的任一种用于数据传输的方法;或者,所述程序使得中继节点执行上述第五方面,及其各种实现方式中的任一种用于数据传输的方法。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对实施例或现有技术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性的前提下,还可以根据这些附图获得其他的附图。
图1是本发明实施例的一个应用场景的示意图。
图2是本发明实施例的数据传输的方法的一个示意性流程图。
图3是本发明实施例的数据传输的方法的另一个示意性流程图。
图4是本发明实施例的数据传输的方法的另一个示意性流程图。
图5是本发明实施例的数据传输的方法的另一个示意性流程图。
图6是本发明实施例的数据传输的方法的另一个示意性流程图。
图7是本发明实施例的数据传输的方法的另一个示意性流程图。
图8是本发明一个实施例的基站的结构框图。
图9是本发明另一个实施例的基站的结构框图。
图10是本发明一个实施例的系统芯片的示意性结构图。
图11是本发明一个实施例的终端设备的结构框图。
图12是本发明另一个实施例的终端设备的结构框图。
图13是本发明另一个实施例的系统芯片的示意性结构图。
图14是本发明一个实施例的实施例的中继节点的结构框图。
图15是本发明另一个实施例的中继节点的结构框图。
图16是本发明另一个实施例的系统芯片的示意性结构图。
图17是本发明另一个实施例的实施例的中继节点的结构框图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动的前提下所获得的所有其他实施例,都属于本发明保护的范围。
应理解,本发明实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time  Division Duplex,TDD)、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)等。
还应理解,本发明实施例中,基站也可以称为网络设备或网络侧设备等,基站可以是GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),或者是未来5G网络中的基站设备等,本发明对此并不限定。
还应理解,在本发明实施例中,终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网(Core Network)进行通信,终端设备可称为接入终端、用户设备(User Equipment,UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备以及未来5G网络中的终端设备等。
图1是蜂窝通信与D2D通信的一个场景示意图。图1中示出了终端设备11、终端设备12、终端设备13和基站21。
其中,终端设备12可以通过路径2与基站21进行通信(即蜂窝链路)。或者,终端设备12也可以通过路径1(即直连链路或者中继链路),经过作为中继节点的终端设备11与基站21进行通信。或者,作为另一种情形,也可以经过作为中继节点的终端设备13与基站21进行通信。
并且,终端设备12可以根据基站21广播发送的信号好坏的门限值进行路径选择。
当终端设备12为特殊类型终端时,例如终端设备12为无法与基站进行通信的可穿戴设备,终端设备12通过中继节点与网络进行连接时,可以尽可能重用现有技术中的终端直连技术以及终端中继技术。
然而现有的终端直连技术中,链路选择及重选是完全基于终端决策的,网络侧仅会通过广播信号好坏的门限值以及资源分配进行部分控制,无法完全进行控制。此外,由于在可穿戴设备中,覆盖并非采用中继链路的唯一需求,部分终端希望能够通过中继链路节省电量或者进行业务汇聚,因此信号 好坏也并非评判中继链路使用与否的唯一准则。因此本专利试图通过网络和中继终端的交互,对于终端中继链路的选择和重选进行更好地控制。
图2是本发明一个实施例的数据传输的方法流程图。图2中所示的方法包括:
S201,基站21向终端设备12发送配置信息。
可理解,在S201之前,终端设备12与基站21通过两者之间的蜂窝链路进行数据传输。
可选地,基站21可以通过广播的形式发送该配置信息。这样,处于该基站21覆盖范围内的所有的终端设备都可以收到该配置信息。例如,另一终端设备11也可以接收到该配置信息。
可选地,基站21通过蜂窝链路与终端设备12进行通信的过程中,如果判断需要进行链路切换,那么可以执行S201。
举例来说,如果基站21发现终端设备12距离基站21的距离在增大,或者,基站21发现终端设备12与基站21之间的信号质量变差,则可以执行S201。
S201可以理解为是,基站21配置终端设备12进行信号质量测量,具体地,基站21配置终端设备12进行Uu和/或SL测量。其中,Uu是指终端设备12与基站21之间的接口,SL是指终端设备12与其他终端设备之间的接口。
S202,终端设备12向基站21上报终端信息。
可选地,终端设备12在接收到配置信息之后,可以进行信号质量测量。这样,终端设备12可以确定终端设备12与基站21之间的信号质量信息。
可选地,终端设备12在接收到配置信息之后,还可以发起D2D发现过程,从而确定终端设备12与其附近的其他终端设备之间的信号质量信息,例如,终端设备12可以确定与另一终端设备11之间的信号质量信息。这里,将另一终端设备11称为第一中继节点11。
相应地,终端信息可以包括终端设备12与基站21之间的信号质量信息,和/或,包括终端设备12与第一中继节点11之间的信号质量信息。
另外,该终端信息还可以包括终端设备的业务优先级或链路倾向。例如,该业务优先级可以包括第一业务的优先级为1,第二业务的优先级为2。例如,该链路倾向可以包括:第一业务倾向于使用经过第一中继节点11的中 继链路,第二业务倾向于使用经过另一个中继节点的中继链路,第三业务倾向于使用与基站之间的蜂窝链路,等等。
其中,业务优先级或链路倾向可以是用户偏好提前设置在终端设备12上的。也就是说,可以是由用户根据自己的偏好或业务需求进行提前设置的。
应注意,本发明实施例中,S201的步骤是可选地,作为一个实施例,如果未执行S201,终端设备12可以根据自身的需要执行S202。举例来说,终端设备12通过蜂窝链路与基站21进行通信的过程中,如果期望进行链路切换,可以执行S202。举例来说,若终端设备12测量到终端设备12与基站21之间的信号质量低于预设的信号阈值时,执行S202,请求将蜂窝链路切换为SL。举例来说,若终端设备12检测到终端设备12与基站21之间的链路带宽不满足特定的业务(例如业务A)时,执行S202,请求将该业务A的传输链路由蜂窝链路切换为SL。
此时,该终端信息包括中继请求信息。该中继请求信息表示该终端设备12期望使用中继节点与基站21进行后续的通信。
可理解,即使不执行S201,终端信息也可以进一步包括前述的信号质量信息、业务优先级或链路倾向。也就是说,终端设备12可以主动发起信号质量测量,获得前述的信号质量信息。
可理解,如果S201中的配置信息是基站21以广播的形式发送的,基站21可以接收多个终端设备的终端信息。
S203,第一中继节点11向基站21发送中继信息。
中继信息可以包括第一中继节点11的电量信息、负载信息、状态信息中的至少一项。其中,状态信息可以包括第一中继节点11的网络状态等。例如,网络状态可以表示数据是否打开。
可见,该中继信息表示第一中继节点11是否可以作为中继终端,将其他终端(如终端设备12)接入基站21。
可理解,基站21可以接收多个终端设备发送的中继信息。
应注意,本发明实施例对S202和S203的执行顺序不作限定。例如,可以先执行S202,再执行S203;或者可以先执行S203再执行S202;或者,可以同时执行S202和S203。
可选地,本发明实施例中,S202中,终端设备12也可以向基站21发送终端设备12的中继信息,包括终端设备12的电量信息、负载信息、状态 信息中的至少一项。也就是说,该终端设备12也可以作为其他终端的中继。
可选地,本发明实施例中,S203中,第一中继节点11也可以向基站21发送第一中继节点11的终端信息,包括第一中继节点11与基站21之间的信号质量信息等。也就是说,终端设备11也可以请求其他的终端作为终端设备11与基站21之间的中继。
S204,基站21根据在S202中接收到的终端信息,确定该终端设备12通过第一中继节点11与基站21进行后续的通信。
基站21可以根据终端信息,为终端设备12选择第一中继节点11作为终端设备12与基站21之间通信的中继。
可选地,基站21可以根据终端设备12与基站21之间的信号质量、终端设备12与第一中继节点11之间的信号质量、第一中继节点11与基站21之间的信号质量,确定第一中继节点11作为终端设备12与基站21之间通信的中继。举例来说,若终端设备12与基站21之间的信号质量变弱(例如,低于某个预设的第一阈值),但是终端设备12与第一中继节点11之间的信号质量以及第一中继节点11与基站21之间的信号质量都较强(例如,高于某个预设的第二阈值),那么基站21可以确定第一中继节点11作为终端设备12与基站21之间通信的中继。
可选地,基站21可以根据终端设备的业务优先级或链路倾向,确定第一中继节点11作为终端设备12与基站21之间通信的中继。举例来说,假设第一业务的优先级为1,若终端设备12与基站21之间的信号质量变弱,但是终端设备12与第一中继节点11之间的信号质量以及第一中继节点11与基站21之间的信号质量都较强,那么基站21可以确定第一中继节点11作为终端设备12与基站21之间的第一业务的通信的中继。以保证优先级为1的第一业务的传输。举例来说,假设该链路倾向包括:第一业务倾向于使用经过第一中继节点11的中继链路,且该终端设备12的待传输业务为第一业务,那么,基站21可以确定第一中继节点11作为终端设备12与基站21之间通信的中继。
可选地,基站21可以根据中继请求信息,确定第一中继节点11作为终端设备12与基站21之间通信的中继。举例来说,基站21可以根据位置信息和/或信号质量信息,执行S204。例如,若基站21确定第一中继节点11位于终端设备12附近,且第一中继节点11与基站21之间的信号质量由于 某个预设的阈值,则可以确定第一中继节点11作为终端设备12与基站21之间通信的中继。
可见,本发明实施例中,基站可以根据终端设备的用户偏好及业务需求,优化中继链路选择,能够为终端设备选择更好的传输链路。
可选地,基站21可以根据S202中收到的终端信息以及S203中收到的中继信息,确定第一中继节点11作为终端设备12与基站21之间通信的中继。举例来说,若终端设备12与第一中继节点11之间的信号质量强(例如,高于某个预设的第二阈值),且第一中继节点11的电量高(例如,高于某个预设的电量阈值),那么,基站21可以确定第一中继节点11作为终端设备12与基站21之间通信的中继。
S205,基站21向终端设备12发送第一通知消息,该第一通知消息用于指示所述终端设备12通过所述第一中继节点11与所述基站21进行通信。
其中,第一通知消息中可以包括第一中继节点11的标识。
该第一通知消息可以理解为,指示终端设备12将数据业务由Uu接口切换为SL接口。也就是说,指示终端设备12将数据业务的传输链路由终端设备12与基站21之间的蜂窝链路转为终端设备12与第一中继节点11之间的Sidelink。
可选地,在S204之后,还可以包括S206:
S206,基站21向第一中继节点11发送第二通知消息,该第二通知消息用于指示所述终端设备12将通过所述第一中继节点11与所述基站21进行通信。
也就是说,该第二通知消息用于指示第一中继节点11作为终端设备12与基站21之间进行通信的中继。其中,第二通知消息中可以包括终端设备12的标识。
可选地,在S204之后,还可以包括S207:
S207,基站21向终端设备12发送无线资源配置信息,以便于终端设备12使用所述无线资源进行所述通信。
具体地,基站21可以向终端设备12发送无线资源配置,进一步地,终端设备12在通过第一中继节点11与基站21进行通信的过程中,使用该无线资源。
可理解,S207中的无线资源是终端设备12与第一中继节点11之间进行 的通信的D2D传输资源。
可选地,在S204之后,还可以包括S208:
S208,基站21向第一中继节点11发送中继资源配置信息,以便于第一中继节点11使用所述中继资源协助终端设备12与基站21之间的通信。
应注意,S205和S207可以同时执行,S205中的第一通知消息和S207中无线资源配置可以在同一个消息中指示。S206和S208可以同时执行,S206中的第二通知消息和S208中的中继资源配置可以在同一个消息中指示。
应注意,本发明实施例对S205和S206的执行顺序不作限定。例如,可以先执行S206再执行S205。本发明实施例对S207和S208的执行顺序不作限定。例如,可以先执行S208再执行S207。
进一步地,可以执行S209。
S209,终端设备12通过第一中继节点11与基站21进行通信。
也就是说,终端设备12通过终端设备12与第一中继节点11之间的直连链路(SL),与基站21进行通信。
具体地,终端设备12可以通过与第一中继节点11之间的直连链路,将上行数据发送至第一中继节点11,再由该第一中继节点11将上行数据转发至基站21。
可选地,若前述执行了S207,终端设备12可以使用该无线资源,与第一中继节点11进行通信。也就是说,终端设备12在通过第一中继节点11与基站进行通信的过程中,使用该无线资源进行数据传输。
可选地,若前述没有执行S207,终端设备12可以使用预先分配的无线资源,与第一中继节点11进行通信。也就是说,终端设备12在通过第一中继节点11与基站进行通信的过程中,使用该预先分配的无线资源进行数据传输。
可选地,若前述执行了S208,第一中继节点11可以使用S208所配置的中继资源,协助终端设备12与基站21之间的通信。
可见,本发明实施例中,可以由基站根据终端信息,进行中继链路的确定,以将终端设备与基站之间的传输由蜂窝链路切换至直连链路,从而能够保证终端设备选择更好的传输链路,保证传输的效率。
可选地,作为另一个实施例,如图3所示,在S204之后,可以包括:
S2041,基站21向第一中继节点11发送第一请求消息,该第一请求消 息用于请求第一中继节点11作为终端设备12与基站21之间的中继。
进一步地,第一中继节点11可以根据中继信息判断是否可以作为终端设备12与基站21之间的中继。
具体地,第一中继节点11可以根据预定义的判断准则进行判断。这里,该预定义的判断准则可以包括预设的电量阈值和/或预设的负载阈值等。
其中,该预定义的判断准则可以是预先配置在第一中继节点11上的,或者,该预定义的判断准则可以是由基站21通过配置信息发送的。可理解,在S201中的配置信息可以包括该预定义的判断准则。或者,S201中的配置信息可以包括预设的电量阈值和/或预设的负载阈值。
也就是说,第一中继节点11接收到第一请求消息之后,根据判断准则和中继信息判断是否允许终端设备12使用中继(即第一中继节点11)与基站21进行通信。
具体地,第一中继节点11可以根据预设的电量阈值,以及第一中继节点11的电量,进行判断。如果第一中继节点11的电量高于该电量阈值,可以确定判断的结果为允许。如果第一中继节点11的电量低于该电量阈值,可以确定判断的结果为拒绝。
或者,具体地,第一中继节点11可以根据预设的负载阈值,以及第一中继节点11的负载,进行判断。如果第一中继节点11的负载低于该负载阈值,可以确定判断的结果为允许。如果第一中继节点11的负载高于该负载阈值,可以确定判断的结果为拒绝。
举例来说,若第一中继节点11的电量高(例如,高于预设的电量阈值),和/或,第一中继节点11的负载低(例如,低于预设的负载阈值),则可以确定判断的结果为允许。也就是说,允许终端设备12使用中继(即第一中继节点11)与基站21进行通信。
S2042,第一中继节点11向基站21发送第一反馈消息,该第一反馈消息用于表示第一中继节点11同意作为所述中继。
或者,该第一反馈消息也可以认为是第一中继节点11的中继确认消息。
这样,基站21在收到第一中继节点11的第一反馈消息之后,再执行S205。也就是说,基站21在收到第一中继节点11的中继确认之后,再执行S205。
应注意,图3所示的实施例中,S203是可选地,即在S204中,基站21 可以根据终端信息确定第一中继节点11作为中继。
可理解,参照图2部分的描述,S206至S208是可选的。即,本实施例中的S206至S208可以不执行。
可选地,作为另一个实施例,如图4所示,包括:
S201,基站21发送配置信息。
具体地,该步骤可以参见前述图2的实施例中S201的描述,为避免重复,这里不再赘述。
S202,终端设备12向基站21上报终端信息。
可选地,终端设备12在接收到配置信息之后,可以发起D2D发现过程,从而确定终端设备12与其附近的其他终端设备之间的信号质量信息,例如,终端设备12可以确定与另一终端设备11之间的信号质量信息,终端设备12也可以确定与另一终端设备13之间的信号质量信息。这里,将另一终端设备11称为第一中继节点11,将另一终端设备13称为第二中继节点13。
相应地,终端信息还可以包括终端设备12与基站21之间的信号质量信息,和/或,包括终端设备12与第一中继节点11之间的信号质量信息以及终端设备12与第二中继节点13之间的信号质量信息。
可选地,终端信息还可以包括业务优先级或链路倾向。
具体地,该步骤可以参见前述图2的实施例中S202的描述,为避免重复,这里不再赘述。
S2030,基站21接收第一中继节点11发送的中继信息,基站21接收第二中继节点13发送的中继信息。
第一中继节点11发送的中继信息可以包括第一中继节点11的电量信息、负载信息、状态信息中的至少一项。
第二中继节点13发送的中继信息可以包括第一中继节点11的电量信息、负载信息、状态信息中的至少一项。
应注意,本发明实施例对S202和S2030的执行顺序不作限定。例如,可以先执行S202,再执行S2030;或者可以先执行S2030再执行S202;或者,可以同时执行S202和S2030。
应注意,本实施例中的S2030是可选地,即S2030可以不执行。
S2031,基站21根据终端信息和中继信息,确定第二中继节点13作为终端设备12与基站21之间通信的中继。
可选地,如果存在多个中继节点可以作为终端设备12的中继,则基站21可以根据终端信息和中继信息对多个中继节点进行排序。
或者,可选地,如果未执行S2030,基站21可以根据终端信息,对多个中继节点进行排序。例如,可以根据位置信息、多个中继节点与基站21之间的信号质量信息等,进行排序。
假设,该多个中继节点中的最优选择是第二中继节点13,次优选择是第一中继节点11。
也就是说,基站21可以确定多条中继路径,该多条中继路径均可以作为终端设备12与基站21之间的可选路径,并且,基站21可以对该多条中继路径进行排序。例如,通过第二中继节点13的中继路径为最优路径,通过第一中继节点11的中继路径为次优路径。
举例来说,若第二中继节点13的电量高于第一中继节点11的电量,和/或,若终端设备12与第二中继节点13之间的信号质量优于终端设备12与第一中继节点11之间的信号质量,那么,基站21可以确定第二中继节点13作为中继。
S2032,基站21向第二中继节点13发送第二请求消息,该第二请求消息用于请求第二中继节点13作为终端设备12与基站21之间的中继。
进一步地,第二中继节点13可以根据第二中继节点13的中继信息判断是否可以作为终端设备12与基站21之间的中继。
具体地,第二中继节点13可以根据预定义的判断准则进行判断。这里,该预定义的判断准则可以包括预设的电量阈值和/或预设的负载阈值等。
其中,该预定义的判断准则可以是预先配置在第二中继节点13上的,或者,该预定义的判断准则可以是由基站21通过配置信息发送的。可理解,在S201中的配置信息可以包括该预定义的判断准则。或者,S201中的配置信息可以包括预设的电量阈值和/或预设的负载阈值。
也就是说,第二中继节点13接收到第二请求消息之后,根据第二中继节点13的中继信息判断是否允许终端设备12使用中继(即第二中继节点13)与基站21进行通信。
举例来说,若第二中继节点13的电量低(例如,低于预设的电量阈值),和/或,第二中继节点13的负载高(例如,高于预设的负载阈值),则可以确定判断的结果为不允许(拒绝)。也就是说,不允许终端设备12使用中继(即 第二中继节点13)与基站21进行通信。
S2033,第二中继节点13向基站21发送第二反馈消息,该第二反馈消息用于表示第二中继节点13拒绝作为所述中继。
由于第二中继节点13不允许终端设备12通过其进行中继流程,则基站21需要选择新的中继节点。也就是说,基站21需要触发新一轮的中继选择过程。
S204,基站21根据终端信息和中继信息,确定第一中继节点11作为终端设备12与基站21之间通信的中继。
该过程与S2031类似,如果在S2031中基站21确定的是最优的中继路径,即第二中继节点13,则在S204中基站21确定次优的中继路径,即第一中继节点11。
S2034,基站21向第一中继节点11发送第三请求消息,该第三请求消息用于请求第一中继节点11作为终端设备12与基站21之间的中继。
进一步地,第一中继节点11可以根据中继信息判断是否可以作为终端设备12与基站21之间的中继。
具体地,第一中继节点11可以根据预定义的判断准则进行判断。这里,该预定义的判断准则可以包括预设的电量阈值和/或预设的负载阈值等。
该步骤S2034与前述图3的实施例中的S2041类似,为避免重复,这里不再赘述。
S2035,第一中继节点11向基站21发送第三反馈消息,该第三反馈消息用于表示第一中继节点11同意作为所述中继。
该步骤S2034与前述图3的实施例中的S2042类似,为避免重复,这里不再赘述。
进一步地,在S2035之后,基站21可以执行S205。
可见,本发明实施例中,基站与中继节点之间交互协调,可以结合终端信息,优化中继链路选择,能够为终端设备选择更好的传输链路。
本发明实施例中,基站可以根据终端信息,或者根据终端信息和中继信息,为终端设备确定优化的中继链路,保证终端设备的中继链路的数据传输。
图5是本发明另一个实施例的数据传输的方法的流程图。图5所示的方法包括:
S501,第一中继节点11确定停止作为终端设备12与基站21之间的中 继。
可理解,在S501之前,终端设备12通过第一中继节点11与基站21进行通信。也就是说,在S501之前,第一中继节点11是终端设备12与基站21之间的中继。
即,在S501之前,终端设备12通过终端设备12与第一中继节点11之间的直连链路,与基站21进行通信。
或者,图5所示的方法可以在上述图2至图4的任一实施例之后执行。
S501也可以理解为,第一中继节点11确定将终止与终端设备12之间的直连链路(SL)。
可选地,在S501之前,终端设备12可以进行信号测量,并将测量信息发送至第一中继节点11。相应地,在S501中,第一中继节点11可以根据该测量信息,确定停止作为终端设备12与基站21之间的中继。举例来说,该测量信息可以是参考信号接收功率(Reference Signal Received Power,RSRP)。
可选地,第一中继节点11可以根据中继信息,确定停止作为所述终端设备与所述基站之间的中继。
这里,中继信息包括第一中继节点11的电量信息、负载信息、状态信息中的至少一项。
可选地,第一中继节点11可以根据预设的判断准则,确定停止作为所述中继。这里,该预定义的判断准则可以包括预设的电量阈值和/或预设的负载阈值等。其中,该预设的判断准则可以是预先配置在第一中继节点11上的,或者,该预设的判断准备可以是基站21通过配置信息发送至第一中继节点11的。
例如,当第一中继节点11的电量低于预设的电量阈值时,和/或,当第一中继节点11的负载信息高于预设的负载阈值时,第一中继节点11可以确定不再作为终端设备12与基站21之间的中继。
可选地,当第一中继节点11不愿意继续作为终端设备12与基站21之间的中继时,可以确定停止作为所述终端设备与所述基站之间的中继。
S502,第一中继节点11向终端设备12发送第一通知消息,该第一通知消息用于指示终端设备12通过第一链路与基站21进行通信。
或者,第一通知消息用于告知终端设备12将释放终端设备12与第一中 继节点11之间的直连链接,并指示终端设备12通过第一链路与基站21进行通信。
可选地,作为一个实施例,S502中的第一链路可以为终端设备12与基站21之间的蜂窝链路。
那么,在S502之后,可以执行S503。
S503,终端设备12根据第一通知消息,通过第一链路与基站21进行通信。
也就是说,终端设备12根据S502中接收到的第一通知消息,通过终端设备12与基站21之间的蜂窝链路与基站21进行通信。
可选地,在S503之前,如图5所示,还可以包括:
S5021,第一中继节点11向基站21发送请求消息,所述请求用于代替终端设备12向基站21请求接入资源。
请求消息还可以同时包括终端设备12将与基站21进行通信的指示信息。也就是说,第一中继节点11可以告知基站21该终端设备12希望与其进行通信。
S5022,基站21向第一中继节点11发送接入资源。
具体地,基站21根据请求消息,向第一中继节点11发送接入资源。
可选地,基站21可以向第一中继节点11发送接入资源配置,并且,第一中继节点11根据该接入资源配置确定接入资源。
S5023,第一中继节点11将接入资源发送至终端设备12。
可选地,第一中继节点11可以将从基站21接收到的接入资源配置发送至终端设备12。
在S5023之后,可以执行S503。并且,在S503中,终端设备12根据该接入资源接入基站21,并在接入之后,通过蜂窝链路与基站21进行通信。
也就是说,终端设备12可以根据接入资源,执行在基站21处的随机接入的过程。并且,在完成随机接入之后,通过蜂窝链路与基站21进行通信。
具体地,此处的随机接入可以参见现有技术中关于随机接入的过程的描述,为避免重复,这里不再赘述。
这样,在图5所示的实施例中,由第一中继节点为终端设备确定传输链路,并且由第一中继节点代替终端设备向基站申请接入资源,能够保证终端设备的传输链路从直连链路至蜂窝链路的切换,保证数据传输的效率。
可理解,在图5所示的实施例之后,还可以再执行图2至图4中任一实施例所示的方法。即,实现从蜂窝链路至直连链路的切换。
可选地,作为另一个实施例,S502中的第一链路可以为终端设备12与第二中继节点13之间的直连链路。
那么,在S502之后,如图6所示,可以执行S504。
S504,终端设备12通过终端设备12与第二中继节点13之间的直连链路,与基站21进行通信。
也就是说,第二中继节点13作为终端设备12与基站21之间的通信的中继。
这样,在图6所示的实施例中,由第一中继节点为终端设备确定传输链路,能够保证终端设备的传输链路从直连链路(终端设备12与第一中继节点11之间的直连链路)至另一直连链路(终端设备12与第二中继节点13之间的直连链路)的切换,保证数据传输的效率。
可选地,作为另一个实施例,S502中的第一通知消息用于指示终端设备12选择多条链路中的一个作为所述第一链路,并通过该第一链路与基站21进行通信。其中,所述多条链路包括所述终端设备与第二中继节点之间的直连链路,以及所述终端设备与所述基站之间的蜂窝链路。
可理解,本发明实施例中,第一通知消息也可以指示终端设备12从多条链路中选择其中之一作为第一链路。这里的多条链路可以包括蜂窝链路,经过第二中继节点的直连链路,还可以包括经过其他中继节点的直连链路等等。
那么,在S502之后,如图7所示,可以执行S505和S506。
S505,终端设备12确定传输链路。
具体地,终端设备12在接收到第一通知消息之后,重新确定与基站21之间的传输链路。这里,终端设备12重新确定的传输链路为第一链路。可选地,终端设备12可以从多条链路中选择其中之一作为第一链路。
可选地,终端设备12可以根据信号强度信息,重新确定传输链路。
举例来说,终端设备12可以根据终端设备12与基站21之间的信号强度,确定通过与基站21之间的蜂窝链路进行通信。例如,若终端设备12与基站21之间的信号质量优于某个预设的信号阈值时,可以确定通过与基站21之间的蜂窝链路与基站21直接进行通信。其中,在S503中,终端设备 12可以通过信号检测,确定与基站21之间的信号强度。也就是说,终端设备12可以确定第一链路为蜂窝链路。
举例来说,终端设备12可以根据终端设备12与基站21之间的信号强度,以及终端设备12与第二中继节点13之间的信号强度,确定通过与基站21之间的蜂窝链路与基站21直接进行通信。例如,若终端设备12与基站21之间的信号质量优于终端设备12与第二中继节点13之间的信号质量时,可以确定通过与基站21之间的蜂窝链路与基站21直接进行通信。其中,在S503中,终端设备12可以执行D2D发现过程,确定能够与其进行D2D通信的终端(例如第二中继节点13),并进一步确定与第二中继节点13之间的信号强度。
举例来说,终端设备12可以根据终端设备12与第二中继节点13之间的信号强度,确定通过与第二中继节点13之间的直连链路与基站21直接进行通信。例如,若终端设备12与第二中继节点13之间的信号强度优于某个预设的信号阈值,则确定通过与第二中继节点13之间的直连链路与基站21直接进行通信。也就是说,终端设备12可以确定终端设备12与第二中继节点13之间的直连链路为第一链路。
举例来说,终端设备12可以根据终端设备12与第二中继节点13之间的信号强度以及根据第二中继节点13的中继信息,确定通过与第二中继节点13之间的直连链路与基站21直接进行通信。或者,终端设备12可以根据终端设备12与基站21之间的信号强度,终端设备12与第二中继节点13之间的信号强度,以及根据第二中继节点13的中继信息,确定通过与第二中继节点13之间的直连链路与基站21直接进行通信。例如,若终端设备12与第二中继节点13之间的信号强度优于终端设备12与基站21之间的信号强度时,可以确定通过与第二中继节点13之间的直连链路与基站21直接进行通信。
其中,中继信息可以包括:第二中继节点13的电量信息、负载信息、状态信息中的至少一项。该中继信息可以是第二中继节点13通过第二中继节点13与第一中继节点11之间的直连链路发送至第一中继节点11,并由第一中继节点11通过第一中继节点11与终端设备12之间的直连链路发送至终端设备12的。
S506,终端设备12通过S505所确定的链路与基站21进行通信。
具体地,终端设备12通过第一链路与基站21进行通信。
可选地,若S505中终端设备12所确定的链路为蜂窝链路,则S506中,终端设备12通过终端设备12与基站21之间的蜂窝链路与基站21进行通信。具体地,可以参见前述图5的实施例中S503的描述。可理解,在该实施例之后,还可以再执行图2至图4中任一实施例所示的方法。即,实现从蜂窝链路至直连链路的切换。
可选地,若S505中终端设备12所确定的链路为终端设备12与第二中继节点13之间的直连链路,则S506中,终端设备12通过终端设备12与第二中继节点13之间的直连链路与基站21进行通信。具体地,可以参见前述图6的实施例中S504的描述。
这样,在图7所示的实施例中,由第一中继节点指示终端设备切换至其他的链路(第一链路或第二链路),由终端设备根据实际情况进行链路选择,能够保证终端设备的传输链路从直连链路(终端设备12与第一中继节点11之间的直连链路)至蜂窝链路(终端设备12与基站21之间的直连链路)的切换,或者从直连链路(终端设备12与第一中继节点11之间的直连链路)至另一直连链路(终端设备12与第二中继节点13之间的直连链路)的切换,保证数据传输的效率。
由此可见,本发明实施例中,可以由基站,或者由基站与中继节点之间的交互协调,优化终端设备与基站之间的通信链路的切换。具体地,可以根据实际的情形,由蜂窝链路切换为直连链路(即中继链路),或者由直连链路切换为蜂窝链路,或者由一条直连链路切换为另一条直连链路,能够为终端设备选择更好的传输链路,从而能够保证终端设备与基站之间的通信质量。
图8是本发明一个实施例的基站的结构框图。图8所示的基站21包括接收单元211、发送单元212和确定单元213。
接收单元211,用于接收终端设备发送的终端信息;
确定单元212,用于根据所述接收单元211接收的所述终端信息,确定所述终端设备通过第一中继节点与所述基站进行通信;
发送单元213,用于向所述终端设备发送第一通知消息,所述第一通知消息用于指示所述终端设备通过所述第一中继节点与所述基站进行通信。
本发明实施例中,基站可以指示终端设备将蜂窝链路切换至经过第一中 继节点的直连链路,从而保证终端设备与基站之间的通信质量。
可选地,作为一个实施例,接收单元211还用于接收所述第一中继节点发送的中继信息。确定单元212,具体用于根据所述终端信息以及所述中继信息,确定所述终端设备通过第一中继节点与所述基站进行通信。其中,所述中继信息包括:所述第一中继节点的电量信息、负载信息、状态信息中的至少一项。
可选地,作为另一个实施例,发送单元213,还用于向所述第一中继节点发送第一请求消息,所述第一请求消息用于请求所述第一中继节点作为所述终端设备与所述基站之间的中继。接收单元211还用于接收所述第一中继节点的第一反馈消息,所述第一反馈消息用于表示所述第一中继节点同意作为所述中继。
其中,发送单元212,还可以用于:向所述第一中继节点发送判断准则,以便于所述第一中继节点根据所述判断准则确定是否作为所述中继。这里,所述判断准则可以包括预设的电量阈值和/或预设的负载阈值。
可选地,作为另一个实施例,发送单元212,还可用于向第二中继节点发送第二请求消息,所述第二请求消息用于请求所述第二中继节点作为所述终端设备与所述基站之间的中继。接收单元211,还可用于接收所述第二中继节点的第二反馈消息,所述第二反馈消息用于表示所述第二中继节点拒绝作为所述中继。发送单元212,还可用于向所述第一中继节点发送第三请求消息,所述第三请求消息用于请求所述第一中继节点作为所述终端设备与所述基站之间的中继。接收单元211,还可用于接收所述第一中继节点的第三反馈消息,所述第三反馈消息用于表示所述第一中继节点同意作为所述中继。
进一步地,发送单元212,还可用于:向所述第一中继节点发送第二通知消息,所述第二通知消息用于指示所述终端设备将通过所述第一中继节点与所述基站进行通信。
进一步地,发送单元212,还可用于:向所述第一中继节点发送中继资源配置信息,以便于所述第一中继节点使用所述中继资源协助所述终端设备与所述基站之间的所述通信。
进一步地,发送单元212,还可用于:向所述终端设备发送无线资源配置信息,以便于所述终端设备使用所述无线资源进行所述通信。
其中,本发明实施例中的所述终端信息包括以下中的至少一项:中继请求信息;所述终端设备与所述第一中继节点之间的信号质量信息;所述终端设备与所述基站之间的信号质量信息;所述终端设备的业务优先级或链路倾向。
可选地,发送单元212,还可用于:向所述终端设备发送配置信息,所述配置信息用于指示所述终端设备进行信号质量的测量。
应注意,本发明实施例中,接收单元211可以由接收器实现,发送单元212可以由发送器实现,确定单元213可以由处理器实现。如图9所示,基站21可以包括处理器901、接收器902、发送器903和存储器904。其中,存储器904可以用于存储处理器901执行的代码等。处理器901用于执行存储器904所存储的代码。
基站21中的各个组件通过总线系统905耦合在一起,其中总线系统905除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。
图10是本发明一个实施例的系统芯片的示意性结构图。图10的系统芯片1000包括输入接口1010、输出接口1020、至少一个处理器1030、存储器1040,所述输入接口1010、输出接口1020、所述处理器1030以及存储器1040之间通过总线1050相连,所述处理器1030用于执行所述存储器1040中的代码,当所述代码被执行时,所述处理器1030实现图2至图4任一实施例中由基站执行的方法。
图8所示的基站21或图9所示的基站21或图10所示的系统芯片1000能够实现前述图2至图4的任一方法实施例中由基站所实现的各个过程,为避免重复,这里不再赘述。
图11是本发明一个实施例的终端设备的结构框图。图11所示的终端设备12包括:发送单元121、接收单元122和通信单元123。
可选地,作为一个实施例,
发送单元121,用于向基站发送终端信息;
接收单元122,用于接收所述基站发送的第一通知消息,所述第一通知消息用于指示所述终端设备通过所述第一中继节点与所述基站进行通信,其中,所述第一通知消息是所述基站根据所述终端信息所确定的。
本发明实施例中,终端设备接收基站的通知,并据此将蜂窝链路切换至经过第一中继节点的直连链路,能够保证终端设备与基站之间的通信质量。
可选地,作为一个实施例,接收单元122,还可用于接收所述基站发送的无线资源配置信息。通信单元123,用于使用所述无线资源,通过所述第一中继节点与所述基站进行通信。
可选地,作为另一个实施例,通信单元123,用于使用预先分配的无线资源,通过所述第一中继节点与所述基站进行通信。
另外,图11所示的终端设备12还可以包括测量单元。具体地,接收单元122,可以还用于接收所述基站发送的配置信息。相应地,测量单元用于根据所述配置信息进行信号质量的测量。
应注意,本发明实施例中,发送单元121可以由发送器实现,接收单元122可以由接收器实现,通信单元123可以由处理器实现。如图12所示,终端设备12可以包括处理器1201、接收器1202、发送器1203和存储器1204。其中,存储器1204可以用于存储处理器1201执行的代码等。处理器1201用于执行存储器1204所存储的代码。
终端设备12中的各个组件通过总线系统1205耦合在一起,其中总线系统1205除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。
图13是本发明实施例的系统芯片的另一个示意性结构图。图13的系统芯片1300包括输入接口1310、输出接口1320、至少一个处理器1330、存储器1340,所述输入接口1310、输出接口1320、所述处理器1330以及存储器1340之间通过总线1350相连,所述处理器1330用于执行所述存储器1340中的代码,当所述代码被执行时,所述处理器1330实现图2至图4任一实施例中由基站执行的方法。
图11所示的终端设备12或图12所示的终端设备12或图13所示的系统芯片1300能够实现前述图2至图4的任一方法实施例中由终端设备所实现的各个过程,为避免重复,这里不再赘述。
可选地,作为另一个实施例,
接收单元122,用于接收第一中继节点发送的第一通知消息,所述第一通知消息用于指示所述终端设备通过第一链路与所述基站进行通信。
通信单元123,用于根据所述接收单元122接收的所述第一通知消息,通过所述第一链路与所述基站进行通信。
本实施例中,终端设备可以根据第一中继节点的通知,将经过第一中继节点的直连链路切换至第一链路,从而保证终端设备与基站之间的通信质 量。
可选地,作为一个实施例,通信单元123还可用于通过所述第一中继节点与所述基站进行通信。
作为一例,所述第一链路为所述终端设备与所述基站之间的蜂窝链路,所述第一通知消息用于指示所述终端设备通过所述蜂窝链路与所述基站进行通信。
进一步地,接收单元122,还用于接收所述第一中继节点发送的接入资源,所述接入资源是所述第一中继节点向所述基站申请的。通信单元123,可具体用于根据所述接入资源接入所述基站,并在所述接入之后,通过所述蜂窝链路与所述基站进行通信。
作为另一例,所述第一链路为所述终端设备与第二中继节点之间的直连链路,所述第一通知消息用于指示所述终端设备通过所述直连链路与所述基站进行通信。
作为另一例,所述第一通知消息用于指示所述终端设备选择多条链路中的一个作为所述第一链路,并通过所述第一链路与所述基站进行通信。其中,所述多条链路包括所述终端设备与第二中继节点之间的直连链路,以及所述终端设备与所述基站之间的蜂窝链路。
通信单元123,可具体用于:根据所述终端设备与所述基站之间的信号强度,确定所述第一链路为所述终端设备与所述基站之间的蜂窝链路,并通过所述第一链路与所述基站进行通信。
通信单元123,可具体用于:根据所述终端设备与所述第二中继节点之间的信号强度,确定所述第一链路为所述终端设备与所述第二中继节点之间的直连链路,并通过所述第一链路与所述基站进行通信。或者,通信单元123,可具体用于:根据所述终端设备与所述第二中继节点之间的信号强度,以及根据所述第二中继节点的中继信息,确定所述第一链路为所述终端设备与所述第二中继节点之间的直连链路,并通过所述第一链路与所述基站进行通信。
其中,中继信息包括:所述第二中继节点的电量信息、负载信息、状态信息中的至少一项。
相应地,在此实施例中,图13中的处理器1330实现图5至图7任一实施例中由基站执行的方法。
图11所示的终端设备12或图12所示的终端设备12或图13所示的系统芯片1300能够实现前述图5至图7的任一方法实施例中由终端设备所实现的各个过程,为避免重复,这里不再赘述。
图14是本发明一个实施例的中继节点的结构框图。可理解,中继节点是实现中继功能的终端。图14中的中继节点可以为第一中继节点11,包括:接收单元111和发送单元112,进一步地,第一中继节点11还可以包括判断单元113。
接收单元111,用于接收基站发送的第一请求消息,所述第一请求消息用于请求所述第一中继节点作为终端设备与所述基站之间的中继;
发送单元112,用于如果所述第一中继节点同意作为所述中继,向所述基站发送第一反馈消息,所述第一反馈消息用于表示所述第一中继节点同意作为所述中继,或
发送单元112,用于如果所述第一中继节点拒绝作为所述中继,向所述基站发送第二反馈消息,所述第二反馈消息用于表示所述第一中继节点拒绝作为所述中继。
本发明实施例中,由基站与第一中继节点进行协调交互,第一中继节点能够协助基站将终端设备的蜂窝链路切换至经过第一中继节点的直连链路。或者,第一中继节点可以拒绝请求,并由基站将终端设备的蜂窝链路切换至另一不经过第一中继节点的直连链路。从而能够保证终端设备与基站之间的通信质量。
判断单元113,用于根据判断准则,判断是否同意作为所述中继。
相应地,接收单元111,还用于:接收所述基站发送的配置信息,所述配置信息包括所述判断准则。其中,所述判断准则包括预设的电量阈值和/或预设的负载阈值。
可选地,判断单元113,可以具体用于根据所述判断准则和所述第一中继节点的中继信息,判断是否同意作为所述中继。其中,所述中继信息包括所述第一中继节点的电量信息、负载信息、状态信息中的至少一项。
进一步地,发送单元112向基站发送第一反馈消息,则接收单元111,还可以用于接收所述基站发送的第二通知消息,所述第二通知消息用于指示所述终端设备将通过所述第一中继节点与所述基站进行通信。
进一步地,发送单元112向基站发送第一反馈消息,则接收单元111, 还可以用于接收所述基站发送的中继资源配置信息。第一中继节点11还可以包括通信单元,用于使用所述中继资源协助所述终端设备与所述基站之间的所述通信。
应注意,本发明实施例中,接收单元111可以由接收器实现,发送单元112可以由发送器实现,通信单元113可以由处理器实现。如图15所示,中继节点11可以包括处理器1501、接收器1502、发送器1503和存储器1504。其中,存储器1504可以用于存储处理器1501执行的代码等。处理器1501用于执行存储器1504所存储的代码。
中继节点11中的各个组件通过总线系统1505耦合在一起,其中总线系统1505除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。
图16是本发明实施例的系统芯片的另一个示意性结构图。图16的系统芯片1600包括输入接口1610、输出接口1620、至少一个处理器1630、存储器1640,所述输入接口1610、输出接口1620、所述处理器1630以及存储器1640之间通过总线1650相连,所述处理器1630用于执行所述存储器1640中的代码,当所述代码被执行时,所述处理器1630实现图2至图4任一实施例中由第一中继节点执行的方法。
图14所示的第一中继节点11或图15所示的第一中继节点11或图16所示的系统芯片1600能够实现前述图2至图4的任一方法实施例中由第一中继节点所实现的各个过程,为避免重复,这里不再赘述。
图17是本发明另一个实施例的中继节点的结构框图。图17所示的中继节点可以是第一中继节点11,包括:接收单元111、发送单元112和确定单元114。
确定单元114,用于确定停止作为终端设备与基站之间的中继;
发送单元112,用于向所述终端设备发送第一通知消息,所述第一通知消息用于指示所述终端设备通过第一链路与所述基站进行通信。
本发明实施例中,中继节点可以确定终端设备与基站之间的路径切换,将经过中继节点的直连链路切换至第一链路,这样能够保证终端设备与基站之间的通信质量。
可选地,确定单元114,可具体用于:根据中继信息,确定停止作为所述终端设备与所述基站之间的中继。其中,中继信息包括:所述第一中继节点的电量信息、负载信息、状态信息中的至少一项。
作为一例,所述第一链路为所述终端设备与所述基站之间的蜂窝链路。相应地,发送单元112,还可用于向所述基站发送请求消息,所述请求消息用于代替所述终端设备向所述基站请求接入资源。接收单元111,可用于接收所述基站发送的所述接入资源。发送单元112,还可用于将所述接入资源发送至所述终端设备,以便于所述终端设备根据所述接入资源接入所述基站。
作为另一例,所述第一链路为所述终端设备与第二中继节点之间的直连链路。
作为另一例,所述第一通知消息用于指示所述终端设备选择多条链路中的一个作为所述第一链路,并通过所述第一链路与所述基站进行通信。其中,所述多条链路包括所述终端设备与第二中继节点之间的直连链路,以及所述终端设备与所述基站之间的蜂窝链路。
应注意,本发明实施例中,接收单元111可以由接收器实现,发送单元112可以由发送器实现,确定单元114可以由处理器实现。如图15所示。
并且,相应地,处理器1630实现图5至图7任一实施例中由第一中继节点执行的方法。
图17所示的第一中继节点11或图15所示的第一中继节点11或图16所示的系统芯片1600能够实现前述图5至图7的任一方法实施例中由第一中继节点所实现的各个过程,为避免重复,这里不再赘述。
可以理解,本发明实施例中的处理器可以是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该 存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本发明实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合 或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以权利要求的保护范围为准。

Claims (84)

  1. 一种数据传输的方法,其特征在于,包括:
    基站接收终端设备发送的终端信息;
    所述基站根据所述终端信息,确定所述终端设备通过第一中继节点与所述基站进行通信;
    所述基站向所述终端设备发送第一通知消息,所述第一通知消息用于指示所述终端设备通过所述第一中继节点与所述基站进行通信。
  2. 根据权利要求1所述的方法,其特征在于,在所述基站根据所述终端信息,确定所述终端设备通过第一中继节点与所述基站进行通信之前,所述方法还包括:
    所述基站接收所述第一中继节点发送的中继信息;
    所述基站根据所述终端信息,确定所述终端设备通过第一中继节点与所述基站进行通信,包括:
    所述基站根据所述终端信息以及所述中继信息,确定所述终端设备通过第一中继节点与所述基站进行通信。
  3. 根据权利要求2所述的方法,其特征在于,所述中继信息包括:所述第一中继节点的电量信息、负载信息、状态信息中的至少一项。
  4. 根据权利要求1至3任一项所述的方法,其特征在于,所述基站根据所述终端信息,确定所述终端设备通过第一中继节点与所述基站进行通信,包括:
    所述基站向所述第一中继节点发送第一请求消息,所述第一请求消息用于请求所述第一中继节点作为所述终端设备与所述基站之间的中继;
    所述基站接收所述第一中继节点的第一反馈消息,所述第一反馈消息用于表示所述第一中继节点同意作为所述中继。
  5. 根据权利要求4所述的方法,其特征在于,在所述基站接收终端设备发送的终端信息之前,还包括:
    所述基站向所述第一中继节点发送判断准则,以便于所述第一中继节点根据所述判断准则确定是否作为所述中继。
  6. 根据权利要求5所述的方法,其特征在于,所述判断准则包括预设的电量阈值和/或预设的负载阈值。
  7. 根据权利要求1至3任一项所述的方法,其特征在于,所述基站根 据所述终端信息,确定所述终端设备通过第一中继节点与所述基站进行通信,包括:
    所述基站向第二中继节点发送第二请求消息,所述第二请求消息用于请求所述第二中继节点作为所述终端设备与所述基站之间的中继;
    所述基站接收所述第二中继节点的第二反馈消息,所述第二反馈消息用于表示所述第二中继节点拒绝作为所述中继;
    所述基站向所述第一中继节点发送第三请求消息,所述第三请求消息用于请求所述第一中继节点作为所述终端设备与所述基站之间的中继;
    所述基站接收所述第一中继节点的第三反馈消息,所述第三反馈消息用于表示所述第一中继节点同意作为所述中继。
  8. 根据权利要求1至7任一项所述的方法,其特征在于,所述方法还包括:
    所述基站向所述第一中继节点发送第二通知消息,所述第二通知消息用于指示所述终端设备将通过所述第一中继节点与所述基站进行通信。
  9. 根据权利要求1至8任一项所述的方法,其特征在于,所述方法还包括:
    所述基站向所述第一中继节点发送中继资源配置信息,以便于所述第一中继节点使用所述中继资源协助所述终端设备与所述基站之间的所述通信。
  10. 根据权利要求1至9任一项所述的方法,其特征在于,所述方法还包括:
    所述基站向所述终端设备发送无线资源配置信息,以便于所述终端设备使用所述无线资源进行所述通信。
  11. 根据权利要求1至10任一项所述的方法,其特征在于,所述终端信息包括以下中的至少一项:
    中继请求信息;
    所述终端设备与所述第一中继节点之间的信号质量信息;
    所述终端设备与所述基站之间的信号质量信息;
    所述终端设备的业务优先级或链路倾向。
  12. 根据权利要求1至11任一项所述的方法,其特征在于,在所述基站接收终端设备发送的终端信息之前,还包括:
    所述基站向所述终端设备发送配置信息,所述配置信息用于指示所述终 端设备进行信号质量的测量。
  13. 一种数据传输的方法,其特征在于,包括:
    终端设备向基站发送终端信息;
    所述终端设备接收所述基站发送的第一通知消息,所述第一通知消息用于指示所述终端设备通过所述第一中继节点与所述基站进行通信,其中,所述第一通知消息是所述基站根据所述终端信息所确定的。
  14. 根据权利要求13所述的方法,其特征在于,还包括:
    所述终端设备接收所述基站发送的无线资源配置信息;
    所述终端设备使用所述无线资源,通过所述第一中继节点与所述基站进行通信。
  15. 根据权利要求13所述的方法,其特征在于,还包括:
    所述终端设备使用预先分配的无线资源,通过所述第一中继节点与所述基站进行通信。
  16. 根据权利要求13至15任一项所述的方法,其特征在于,在所述终端设备向基站发送终端信息之前,还包括:
    所述终端设备接收所述基站发送的配置信息;
    所述终端设备根据所述配置信息进行信号质量的测量。
  17. 根据权利要求13至16任一项所述的方法,其特征在于,所述终端信息还包括以下中的至少一项:
    中继请求信息;
    所述终端设备与所述第一中继节点之间的信号质量信息;
    所述终端设备与所述基站之间的信号质量信息;
    所述终端设备的业务优先级或链路倾向。
  18. 一种用于数据传输的方法,其特征在于,包括:
    第一中继节点接收基站发送的第一请求消息,所述第一请求消息用于请求所述第一中继节点作为终端设备与所述基站之间的中继;
    如果所述第一中继节点同意作为所述中继,所述第一中继节点向所述基站发送第一反馈消息,所述第一反馈消息用于表示所述第一中继节点同意作为所述中继,或
    如果所述第一中继节点拒绝作为所述中继,所述第一中继节点向所述基站发送第二反馈消息,所述第二反馈消息用于表示所述第一中继节点拒绝作 为所述中继。
  19. 根据权利要求18所述的方法,其特征在于,在所述第一中继节点接收基站发送的第一请求消息之后,还包括:
    所述第一中继节点根据判断准则,判断是否同意作为所述中继。
  20. 根据权利要求19所述的方法,其特征在于,所述方法还包括:
    所述第一中继节点接收所述基站发送的配置信息,所述配置信息包括所述判断准则。
  21. 根据权利要求20所述的方法,其特征在于,所述判断准则包括预设的电量阈值和/或预设的负载阈值。
  22. 根据权利要求19至21任一项所述的方法,其特征在于,所述第一中继节点根据判断准则,判断是否同意作为所述中继,包括:
    所述第一中继节点根据所述判断准则和所述第一中继节点的中继信息,判断是否同意作为所述中继。
  23. 根据权利要求22所述的方法,其特征在于,所述中继信息包括所述第一中继节点的电量信息、负载信息、状态信息中的至少一项。
  24. 根据权利要求18至23任一项所述的方法,其特征在于,在所述第一中继节点向所述基站发送第一反馈消息之后,还包括:
    所述第一中继节点接收所述基站发送的第二通知消息,所述第二通知消息用于指示所述终端设备将通过所述第一中继节点与所述基站进行通信。
  25. 根据权利要求18至24任一项所述的方法,其特征在于,在所述第一中继节点向所述基站发送第一反馈消息之后,还包括:
    所述第一中继节点接收所述基站发送的中继资源配置信息;
    所述第一中继节点使用所述中继资源协助所述终端设备与所述基站之间的所述通信。
  26. 一种数据传输的方法,其特征在于,包括:
    终端设备接收第一中继节点发送的第一通知消息,所述第一通知消息用于指示所述终端设备通过第一链路与所述基站进行通信;
    所述终端设备根据所述第一通知消息,通过所述第一链路与所述基站进行通信。
  27. 根据权利要求26所述的方法,其特征在于,在所述终端设备接收第一中继节点发送的第一通知消息之前,还包括:
    所述终端设备通过所述第一中继节点与所述基站进行通信。
  28. 根据权利要求26或27所述的方法,其特征在于,所述第一链路为所述终端设备与所述基站之间的蜂窝链路,所述第一通知消息用于指示所述终端设备通过所述蜂窝链路与所述基站进行通信。
  29. 根据权利要求28所述的方法,其特征在于,所述通过所述第一链路与所述基站进行通信,包括:
    所述终端设备接收所述第一中继节点发送的接入资源,所述接入资源是所述第一中继节点向所述基站申请的;
    所述终端设备根据所述接入资源,接入所述基站;
    在所述接入之后,通过所述蜂窝链路与所述基站进行通信。
  30. 根据权利要求26或27所述的方法,其特征在于,所述第一链路为所述终端设备与第二中继节点之间的直连链路,所述第一通知消息用于指示所述终端设备通过所述直连链路与所述基站进行通信。
  31. 根据权利要求26或27所述的方法,其特征在于,所述第一通知消息用于指示所述终端设备选择多条链路中的一个作为所述第一链路,并通过所述第一链路与所述基站进行通信;
    其中,所述多条链路包括所述终端设备与第二中继节点之间的直连链路,以及所述终端设备与所述基站之间的蜂窝链路。
  32. 根据权利要求31所述的方法,其特征在于,
    所述通过所述第一链路与所述基站进行通信,包括:
    所述终端设备根据所述终端设备与所述基站之间的信号强度,确定所述第一链路为所述终端设备与所述基站之间的蜂窝链路,并通过所述第一链路与所述基站进行通信。
  33. 根据权利要求31所述的方法,其特征在于,
    所述通过所述第一链路与所述基站进行通信,包括:
    所述终端设备根据所述终端设备与所述第二中继节点之间的信号强度,确定所述第一链路为所述终端设备与所述第二中继节点之间的直连链路,并通过所述第一链路与所述基站进行通信。
  34. 根据权利要求33所述的方法,其特征在于,所述通过所述第一链路与所述基站进行通信,包括:
    所述终端设备根据所述终端设备与所述第二中继节点之间的信号强度, 以及根据所述第二中继节点的中继信息,确定所述第一链路为所述终端设备与所述第二中继节点之间的直连链路,并通过所述第一链路与所述基站进行通信。
  35. 根据权利要求34所述的方法,其特征在于,所述中继信息包括:所述第二中继节点的电量信息、负载信息、状态信息中的至少一项。
  36. 一种数据传输的方法,其特征在于,包括:
    第一中继节点确定停止作为终端设备与基站之间的中继;
    所述第一中继节点向所述终端设备发送第一通知消息,所述第一通知消息用于指示所述终端设备通过第一链路与所述基站进行通信。
  37. 根据权利要求36所述的方法,其特征在于,所述第一中继节点确定停止作为终端设备与基站之间的中继,包括:
    所述第一中继节点根据中继信息,确定停止作为所述终端设备与所述基站之间的中继。
  38. 根据权利要求37所述的方法,其特征在于,所述中继信息包括:所述第一中继节点的电量信息、负载信息、状态信息中的至少一项。
  39. 根据权利要求36至38任一项所述的方法,其特征在于,所述第一链路为所述终端设备与所述基站之间的蜂窝链路。
  40. 根据权利要求39所述的方法,其特征在于,还包括:
    所述第一中继节点向所述基站发送请求消息,所述请求消息用于代替所述终端设备向所述基站请求接入资源;
    所述第一中继节点接收所述基站发送的所述接入资源;
    所述第一中继节点将所述接入资源发送至所述终端设备,以便于所述终端设备根据所述接入资源接入所述基站。
  41. 根据权利要求36至38任一项所述的方法,其特征在于,所述第一链路为所述终端设备与第二中继节点之间的直连链路。
  42. 根据权利要求36至38任一项所述的方法,其特征在于,所述第一通知消息用于指示所述终端设备选择多条链路中的一个作为所述第一链路,并通过所述第一链路与所述基站进行通信;
    其中,所述多条链路包括所述终端设备与第二中继节点之间的直连链路,以及所述终端设备与所述基站之间的蜂窝链路。
  43. 一种基站,其特征在于,包括:
    接收单元,用于接收终端设备发送的终端信息;
    确定单元,用于根据所述接收单元接收的所述终端信息,确定所述终端设备通过第一中继节点与所述基站进行通信;
    发送单元,用于向所述终端设备发送第一通知消息,所述第一通知消息用于指示所述终端设备通过所述第一中继节点与所述基站进行通信。
  44. 根据权利要求43所述的基站,其特征在于,
    所述接收单元,还用于接收所述第一中继节点发送的中继信息;
    所述确定单元,具体用于根据所述终端信息以及所述中继信息,确定所述终端设备通过第一中继节点与所述基站进行通信。
  45. 根据权利要求44所述的基站,其特征在于,所述中继信息包括:所述第一中继节点的电量信息、负载信息、状态信息中的至少一项。
  46. 根据权利要求43至45任一项所述的基站,其特征在于,
    所述发送单元,还用于向所述第一中继节点发送第一请求消息,所述第一请求消息用于请求所述第一中继节点作为所述终端设备与所述基站之间的中继;
    所述接收单元,还用于接收所述第一中继节点的第一反馈消息,所述第一反馈消息用于表示所述第一中继节点同意作为所述中继。
  47. 根据权利要求46所述的基站,其特征在于,所述发送单元,还用于:
    向所述第一中继节点发送判断准则,以便于所述第一中继节点根据所述判断准则确定是否作为所述中继。
  48. 根据权利要求47所述的基站,其特征在于,所述判断准则包括预设的电量阈值和/或预设的负载阈值。
  49. 根据权利要求43至45任一项所述的基站,其特征在于,
    所述发送单元,还用于向第二中继节点发送第二请求消息,所述第二请求消息用于请求所述第二中继节点作为所述终端设备与所述基站之间的中继;
    所述接收单元,还用于接收所述第二中继节点的第二反馈消息,所述第二反馈消息用于表示所述第二中继节点拒绝作为所述中继;
    所述发送单元,还用于向所述第一中继节点发送第三请求消息,所述第三请求消息用于请求所述第一中继节点作为所述终端设备与所述基站之间 的中继;
    所述接收单元,还用于接收所述第一中继节点的第三反馈消息,所述第三反馈消息用于表示所述第一中继节点同意作为所述中继。
  50. 根据权利要求43至49任一项所述的基站,其特征在于,所述发送单元,还用于:
    向所述第一中继节点发送第二通知消息,所述第二通知消息用于指示所述终端设备将通过所述第一中继节点与所述基站进行通信。
  51. 根据权利要求43至50任一项所述的基站,其特征在于,所述发送单元,还用于:
    向所述第一中继节点发送中继资源配置信息,以便于所述第一中继节点使用所述中继资源协助所述终端设备与所述基站之间的所述通信。
  52. 根据权利要求43至51任一项所述的基站,其特征在于,所述发送单元,还用于:
    向所述终端设备发送无线资源配置信息,以便于所述终端设备使用所述无线资源进行所述通信。
  53. 根据权利要求43至52任一项所述的基站,其特征在于,所述终端信息包括以下中的至少一项:
    中继请求信息;
    所述终端设备与所述第一中继节点之间的信号质量信息;
    所述终端设备与所述基站之间的信号质量信息;
    所述终端设备的业务优先级或链路倾向。
  54. 根据权利要求43至53任一项所述的基站,其特征在于,所述发送单元,还用于:
    向所述终端设备发送配置信息,所述配置信息用于指示所述终端设备进行信号质量的测量。
  55. 一种终端设备,其特征在于,包括:
    发送单元,用于向基站发送终端信息;
    接收单元,用于接收所述基站发送的第一通知消息,所述第一通知消息用于指示所述终端设备通过所述第一中继节点与所述基站进行通信,其中,所述第一通知消息是所述基站根据所述终端信息所确定的。
  56. 根据权利要求55所述的终端设备,其特征在于,还包括通信单元,
    所述接收单元,还用于接收所述基站发送的无线资源配置信息;
    所述通信单元,用于使用所述无线资源,通过所述第一中继节点与所述基站进行通信。
  57. 根据权利要求55所述的终端设备,其特征在于,还包括通信单元,
    所述通信单元,用于使用预先分配的无线资源,通过所述第一中继节点与所述基站进行通信。
  58. 根据权利要求55至57任一项所述的终端设备,其特征在于,还包括测量单元:
    所述接收单元,还用于接收所述基站发送的配置信息;
    所述测量单元,用于根据所述配置信息进行信号质量的测量。
  59. 根据权利要求55至58任一项所述的终端设备,其特征在于,所述终端信息还包括以下中的至少一项:
    中继请求信息;
    所述终端设备与所述第一中继节点之间的信号质量信息;
    所述终端设备与所述基站之间的信号质量信息;
    所述终端设备的业务优先级或链路倾向。
  60. 一种中继节点,其特征在于,所述中继节点为第一中继节点,包括:
    接收单元,用于接收基站发送的第一请求消息,所述第一请求消息用于请求所述第一中继节点作为终端设备与所述基站之间的中继;
    发送单元,用于如果所述第一中继节点同意作为所述中继,向所述基站发送第一反馈消息,所述第一反馈消息用于表示所述第一中继节点同意作为所述中继,或
    所述发送单元,用于如果所述第一中继节点拒绝作为所述中继,向所述基站发送第二反馈消息,所述第二反馈消息用于表示所述第一中继节点拒绝作为所述中继。
  61. 根据权利要求60所述的中继节点,其特征在于,还包括判断单元,用于根据判断准则,判断是否同意作为所述中继。
  62. 根据权利要求61所述的中继节点,其特征在于,所述接收单元,还用于:接收所述基站发送的配置信息,所述配置信息包括所述判断准则。
  63. 根据权利要求62所述的中继节点,其特征在于,所述判断准则包括预设的电量阈值和/或预设的负载阈值。
  64. 根据权利要求61至63任一项所述的中继节点,其特征在于,所述判断单元,具体用于根据所述判断准则和所述第一中继节点的中继信息,判断是否同意作为所述中继。
  65. 根据权利要求64所述的中继节点,其特征在于,所述中继信息包括所述第一中继节点的电量信息、负载信息、状态信息中的至少一项。
  66. 根据权利要求60至65任一项所述的中继节点,其特征在于,若所述发送单元向所述基站发送所述第一反馈消息,
    所述接收单元,还用于接收所述基站发送的第二通知消息,所述第二通知消息用于指示所述终端设备将通过所述第一中继节点与所述基站进行通信。
  67. 根据权利要求60至66任一项所述的中继节点,其特征在于,若所述发送单元向所述基站发送所述第一反馈消息,还包括通信单元,
    所述接收单元,还用于接收所述基站发送的中继资源配置信息;
    所述通信单元,用于使用所述中继资源协助所述终端设备与所述基站之间的所述通信。
  68. 一种终端设备,其特征在于,包括:
    接收单元,用于接收第一中继节点发送的第一通知消息,所述第一通知消息用于指示所述终端设备通过第一链路与所述基站进行通信;
    通信单元,用于根据所述接收单元接收的所述第一通知消息,通过所述第一链路与所述基站进行通信。
  69. 根据权利要求68所述的终端设备,其特征在于,
    所述通信单元,还用于通过所述第一中继节点与所述基站进行通信。
  70. 根据权利要求68或69所述的终端设备,其特征在于,所述第一链路为所述终端设备与所述基站之间的蜂窝链路,所述第一通知消息用于指示所述终端设备通过所述蜂窝链路与所述基站进行通信。
  71. 根据权利要求70所述的终端设备,其特征在于,
    所述接收单元,还用于接收所述第一中继节点发送的接入资源,所述接入资源是所述第一中继节点向所述基站申请的;
    所述通信单元,具体用于根据所述接入资源接入所述基站,并在所述接入之后,通过所述蜂窝链路与所述基站进行通信。
  72. 根据权利要求68或69所述的终端设备,其特征在于,所述第一链 路为所述终端设备与第二中继节点之间的直连链路,所述第一通知消息用于指示所述终端设备通过所述直连链路与所述基站进行通信。
  73. 根据权利要求68或69所述的终端设备,其特征在于,所述第一通知消息用于指示所述终端设备选择多条链路中的一个作为所述第一链路,并通过所述第一链路与所述基站进行通信;
    其中,所述多条链路包括所述终端设备与第二中继节点之间的直连链路,以及所述终端设备与所述基站之间的蜂窝链路。
  74. 根据权利要求73所述的终端设备,其特征在于,所述通信单元,具体用于:
    根据所述终端设备与所述基站之间的信号强度,确定所述第一链路为所述终端设备与所述基站之间的蜂窝链路,并通过所述第一链路与所述基站进行通信。
  75. 根据权利要求73所述的终端设备,其特征在于,所述通信单元,具体用于:
    根据所述终端设备与所述第二中继节点之间的信号强度,确定所述第一链路为所述终端设备与所述第二中继节点之间的直连链路,并通过所述第一链路与所述基站进行通信。
  76. 根据权利要求75所述的终端设备,其特征在于,所述通信单元,具体用于:
    根据所述终端设备与所述第二中继节点之间的信号强度,以及根据所述第二中继节点的中继信息,确定所述第一链路为所述终端设备与所述第二中继节点之间的直连链路,并通过所述第一链路与所述基站进行通信。
  77. 根据权利要求76所述的终端设备,其特征在于,所述中继信息包括:所述第二中继节点的电量信息、负载信息、状态信息中的至少一项。
  78. 一种中继节点,其特征在于,包括:
    确定单元,用于确定停止作为终端设备与基站之间的中继;
    发送单元,用于向所述终端设备发送第一通知消息,所述第一通知消息用于指示所述终端设备通过第一链路与所述基站进行通信。
  79. 根据权利要求78所述的中继节点,其特征在于,所述确定单元,具体用于:
    根据中继信息,确定停止作为所述终端设备与所述基站之间的中继。
  80. 根据权利要求79所述的中继节点,其特征在于,所述中继信息包括:所述第一中继节点的电量信息、负载信息、状态信息中的至少一项。
  81. 根据权利要求78至80任一项所述的中继节点,其特征在于,所述第一链路为所述终端设备与所述基站之间的蜂窝链路。
  82. 根据权利要求81所述的中继节点,其特征在于,还包括接收单元,
    所述发送单元,还用于向所述基站发送请求消息,所述请求消息用于代替所述终端设备向所述基站请求接入资源;
    所述接收单元,用于接收所述基站发送的所述接入资源;
    所述发送单元,还用于将所述接入资源发送至所述终端设备,以便于所述终端设备根据所述接入资源接入所述基站。
  83. 根据权利要求78至80任一项所述的中继节点,其特征在于,所述第一链路为所述终端设备与第二中继节点之间的直连链路。
  84. 根据权利要求78至80任一项所述的中继节点,其特征在于,所述第一通知消息用于指示所述终端设备选择多条链路中的一个作为所述第一链路,并通过所述第一链路与所述基站进行通信;
    其中,所述多条链路包括所述终端设备与第二中继节点之间的直连链路,以及所述终端设备与所述基站之间的蜂窝链路。
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