WO2016179835A1 - 边链路信息传输方法、装置以及通信系统 - Google Patents

边链路信息传输方法、装置以及通信系统 Download PDF

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Publication number
WO2016179835A1
WO2016179835A1 PCT/CN2015/078966 CN2015078966W WO2016179835A1 WO 2016179835 A1 WO2016179835 A1 WO 2016179835A1 CN 2015078966 W CN2015078966 W CN 2015078966W WO 2016179835 A1 WO2016179835 A1 WO 2016179835A1
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WIPO (PCT)
Prior art keywords
user equipment
relay
information
side link
transmission device
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2015/078966
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English (en)
French (fr)
Inventor
吴联海
徐海博
周华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
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Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to CN201580078829.6A priority Critical patent/CN107409292B/zh
Priority to PCT/CN2015/078966 priority patent/WO2016179835A1/zh
Publication of WO2016179835A1 publication Critical patent/WO2016179835A1/zh
Priority to US15/810,986 priority patent/US10624141B2/en
Anticipated expiration legal-status Critical
Priority to US16/789,087 priority patent/US11304248B2/en
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a side link (SideLink) information transmission method, apparatus, and communication system.
  • SideLink side link
  • the sidelink communication mode means that the data packet does not need to pass through the core network and the base station, and the user equipment UE1 and UE2 can directly establish a communication link to communicate.
  • Side link communication can also be referred to as device to device (D2D) communication.
  • the edge link discovery process is generally performed before the sidelink communication is performed. For example, before UE1 sends information to UE2 through side-link communication, it is first found whether UE2 is nearby.
  • 1 is a schematic diagram of side link communication, showing two cases where UEs (UE1 and UE2) perform edge link discovery or establish side link communication under coverage of a base station (eg, eNB).
  • 2 is another schematic diagram of side link communication, showing a situation in which one UE (UE1) performs edge link discovery or establishes side link communication when the base station (UE1) is under the coverage of the base station and the other UE (UE2) is not under the coverage of the base station.
  • UE1 is a schematic diagram of side link communication, showing two cases in which UEs (UE1 and UE2) that are not covered by the base station perform edge link discovery or establish side link communication.
  • the edge link communication method can be used to expand the cell coverage. Two examples of extended coverage are given below in conjunction with Figures 1 and 2.
  • Scenario 1 As shown in Figure 1, one user equipment (UE2) is located at the edge of the cell and the signal is weak, and it is likely to leave the coverage of the cell. In addition, there is a user equipment (for example, UE1) having a relay function authorized by the network in the vicinity. In order to avoid service interruption, after discovering the relay (also referred to as a relay user equipment) UE1, UE2 can access the base station through the relay UE1 to continue normal service communication.
  • UE1 user equipment having a relay function authorized by the network in the vicinity.
  • Scenario 2 As shown in FIG. 2, one user equipment (for example, UE2) is located in an area without network coverage. Also, there is a user equipment (for example, UE1) having a relay function authorized by the network in the vicinity. In order to access the network After the UE2 finds the relay UE1 located in the cell coverage, the UE2 can access the base station through the relay UE1.
  • UE1 user equipment
  • UE1 user equipment having a relay function authorized by the network in the vicinity.
  • UE2 may be referred to as a remote user equipment (remote UE), which may be located within the cell coverage or may be located outside the cell coverage.
  • a user equipment (for example, UE1) having a relay function may be referred to as a relay user equipment, which is also referred to as a UE-Network relay, and may also be simply referred to as a relay.
  • the inventor has found that in the existing system, the side link information between the relay user equipment and the remote user equipment is not completely defined, and the user equipment with the relay capability is not defined as the relay user equipment. And there is no definition of how the remote user equipment performs relay discovery and triggering of side link measurement and reporting.
  • Embodiments of the present invention provide a method, an apparatus, and a communication system for transmitting side link information. It is desirable to achieve an increase in cell coverage by relaying user equipment.
  • a method for transmitting an edge link information which is applied to a relay user equipment, and the method for transmitting the side link information includes:
  • the relay user equipment sends the discovery information; the discovery information includes at least the relay identifier, the relay mobility state information, and the side link carrier information of the relay user equipment.
  • an edge link information transmission apparatus configured in a relay user equipment, where the side link information transmission apparatus includes:
  • the discovery information sending unit sends the discovery information; the discovery information includes at least the relay identifier of the relay user equipment, the relay mobile state information, and the side link carrier information.
  • a side link information transmission method which is applied to a remote user equipment, and the side link information transmission method includes:
  • the discovery information includes at least a relay identifier, a relay mobility state information, and side link carrier information of the relay user equipment.
  • an edge link information transmission apparatus which is configured for remote use.
  • the side link information transmission device includes:
  • the discovery information receiving unit receives the discovery information sent by the relay user equipment; the discovery information includes at least the relay identifier, the relay mobility state information, and the side link carrier information of the relay user equipment.
  • a method for transmitting an edge link information which is applied to a base station, and the method for transmitting the side link information includes:
  • the base station broadcasts one or any combination of the following information: the user equipment with the relay capability becomes the first condition information of the relay user equipment, so that the remote user equipment starts detecting the discovery information and the second condition information for performing the edge link measurement.
  • the third condition information of the edge link measurement result is reported by the remote user equipment.
  • an edge link information transmission apparatus configured in a base station, where the edge link information transmission apparatus includes:
  • the parameter sending unit broadcasts one or any combination of the following information: the user equipment with the relay capability becomes the first condition information of the relay user equipment, so that the remote user equipment starts detecting the discovery information and performs the measurement of the edge link.
  • the second condition information is such that the remote user equipment reports the third condition information of the edge link measurement result.
  • a communication system comprising:
  • the discovery information includes at least the relay identifier, the relay mobility state information, and the side link carrier information of the relay user equipment;
  • the remote user equipment receives the discovery information sent by the relay user equipment.
  • a computer readable program wherein when the program is executed in a base station, the program causes a computer to execute an edge link information transmission method as described above in the base station .
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform an edge link information transmission method as described above in a base station.
  • a computer readable program wherein when the program is executed in a user equipment, the program causes a computer to perform side link information as described above in the user equipment Transmission method.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute an edge link information transmission method as described above in a user equipment.
  • the remote user equipment can perform relay discovery to realize the coverage of the cell coverage by the discovery information including at least the relay identifier of the relay user equipment, the relay mobile state information, and the side link carrier information. .
  • the base station broadcasts the first condition information, so that the user equipment with the relay capability becomes the relay user equipment when the first condition is met; the base station broadcasts the second condition information, so that the remote user equipment can start detecting when the second condition is met.
  • the discovery information and the edge link measurement are performed; the base station broadcasts the third condition information, so that the remote user equipment reports the edge link measurement result when the third condition is met.
  • Figure 1 is a schematic diagram of side link communication
  • FIG. 3 is another schematic diagram of side link communication
  • FIG. 4 is a schematic diagram of a method for transmitting side link information according to Embodiment 1 of the present invention.
  • FIG. 5 is another schematic diagram of an edge link information transmission method according to Embodiment 1 of the present invention.
  • FIG. 6 is another schematic diagram of an edge link information transmission method according to Embodiment 1 of the present invention.
  • FIG. 7 is a schematic diagram of a method for transmitting side link information according to Embodiment 2 of the present invention.
  • FIG. 8 is another schematic diagram of an edge link information transmission method according to Embodiment 2 of the present invention.
  • FIG. 9 is another schematic diagram of an edge link information transmission method according to Embodiment 2 of the present invention.
  • FIG. 10 is a schematic diagram of a method for transmitting side link information according to Embodiment 3 of the present invention.
  • FIG. 11 is another schematic diagram of an edge link information transmission method according to Embodiment 3 of the present invention.
  • Figure 12 is a schematic diagram of an edge link information transmission apparatus according to Embodiment 4 of the present invention.
  • FIG. 13 is a schematic diagram of a user equipment according to Embodiment 4 of the present invention.
  • FIG 14 is a schematic diagram of an edge link information transmission apparatus according to Embodiment 5 of the present invention.
  • FIG. 15 is a schematic diagram of an edge link information transmission apparatus according to Embodiment 6 of the present invention.
  • FIG. 16 is a schematic diagram of a base station according to Embodiment 6 of the present invention.
  • Figure 17 is a diagram showing the communication system of Embodiment 7 of the present invention.
  • FIG. 4 is a schematic diagram of a method for transmitting side link information according to an embodiment of the present invention, which is described from the side of a relay user equipment.
  • the edge link information transmission method includes:
  • Step 401 The relay user equipment sends the discovery information.
  • the discovery information includes at least the relay identifier, the relay mobility state information, and the side link carrier information of the relay user equipment.
  • the relay user equipment can broadcast the discovery information.
  • the relay user equipment is firstly a user equipment with a relay capability, that is, an authorization of a ProSe Function entity is obtained in advance, and a ProSe Relay UE ID is provided.
  • the relay capable user equipment may be determined to be a relay user equipment after satisfying a predetermined condition.
  • the relay mobile state information is, for example, information indicating that the relay user equipment is in a low speed, medium speed, or high speed state; the speed of the user equipment may be divided into multiple categories, and the relay mobile state information may be used for indication.
  • the side link carrier information is information indicating carrier information used by the relay user equipment for the side link, such as frequency, bandwidth, and the like. The side link carrier information can be respectively indicated according to the received signal and the transmitted signal, that is, can be distinguished into ProSe receiving carrier information and ProSe transmitting carrier information.
  • the remote user equipment may receive the discovery information sent by one or more relay user equipments, and then determine a relay user equipment according to the discovery information and the channel quality, and perform the same with the determined relay user equipment. Side link connection.
  • UE2 may receive discovery information sent by multiple relay user equipments, and then perform relaying from UE1 (for example, UE1 is relatively stable at a low speed), and thus may be performed. Following the discovery, the cell coverage is expanded.
  • UE1 for example, UE1 is relatively stable at a low speed
  • FIG. 5 is another schematic diagram of an edge link information transmission method according to an embodiment of the present invention. As shown in FIG. 5, the edge link information transmission method includes:
  • Step 501 The relay user equipment sends the discovery information to the remote user equipment.
  • the discovery information includes at least the relay identifier, the relay mobility state information, and the side link carrier information of the relay user equipment.
  • Step 502 The relay user equipment receives a connection request sent by the remote user equipment for establishing an edge link.
  • Step 503 The relay user equipment establishes an edge link with the remote user equipment.
  • the user equipment with the relay capability may determine the user equipment as the relay user equipment according to the preset condition; or may receive the first condition message broadcasted by the base station, and become the relay user equipment if the first condition is met.
  • the first condition information may include at least: an upper bound value and a lower bound value of the air interface channel quality, and/or the mobile state condition information.
  • the user equipment with the relay capability can also interact with the base station through the information before the broadcast discovery information, so that the base station confirms that the user equipment becomes a real relay user equipment.
  • FIG. 6 is another schematic diagram of an edge link information transmission method according to an embodiment of the present invention.
  • the first user equipment has a relay capability, and becomes a relay user equipment after being confirmed by the base station;
  • the second user equipment is a remote user equipment, for example, in a cell edge area or outside the cell coverage area.
  • the side link information transmission method includes:
  • Step 601 The base station broadcasts the first condition information that enables the user equipment with the relay capability to become the relay user equipment.
  • the first condition information may only include an upper bound value and a lower bound value of the air interface channel quality; or may only include the mobile state condition information, for example, information that allows the low-speed user equipment to become the relay user equipment, or not allowed.
  • the high speed user equipment becomes the information of the relay user equipment.
  • the above information may also be included, that is, an upper boundary value and a lower bound value of the air interface channel quality, and the mobile state condition information.
  • the present invention is not limited thereto, and specific information can be determined according to actual scenarios.
  • Step 602 The first user equipment receives the first condition information and performs corresponding parameter configuration.
  • Step 603 The first user equipment becomes a relay user equipment if the first condition is met.
  • the first user equipment determines to become the relay user equipment.
  • the first user equipment is to be a relay user equipment, and the measured value of the channel quality of the primary serving cell needs to be smaller than the upper bound value and greater than the lower bound value, that is, the first user equipment may not be located in the central area of the cell.
  • the measured value of the channel quality may be, for example, Reference Signal Received Power (RSRP) or Reference Signal Received Quality (RSRQ), or other measured value that reflects the channel quality.
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Received Quality
  • the mobile device's mobile state can be divided into low speed, medium speed and high speed. If only low- and medium-speed user equipment is allowed to become a relay user equipment in the broadcast information, the high-speed user equipment will not be a relay user equipment.
  • Step 604 The first user equipment sends a relay request to the base station to be the relay user equipment, where the relay request includes at least the relay identifier and the side link carrier information.
  • Step 605 The first user equipment receives an acknowledgement message sent by the base station to be a relay user equipment.
  • the base station may be associated with a cell radio network temporary identifier (C-RNTI, Cell Radio Network Temporary Identifier) according to the received relay identifier (ProSe Relay UE ID), and the side link radio network temporary identifier (SL-RNTI, SideLink Radio Network)
  • C-RNTI Cell Radio Network Temporary Identifier
  • SL-RNTI SideLink Radio Network
  • Step 606 The first user equipment broadcasts discovery information.
  • the discovery information includes at least a relay identifier, a relay mobility state information, and side link carrier information of the relay user equipment.
  • Step 607 After receiving the discovery information, the second user equipment sends a connection request for establishing an edge link.
  • the second user equipment may determine the relay user equipment that performs relaying (for example, determine that the first user equipment performs relaying), and send the side to the relay user equipment. Link Connection request.
  • Step 608 After receiving the connection request, the first user equipment establishes an edge link with the second user equipment.
  • the remote user equipment can perform relay discovery to realize the expansion of the coverage of the cell by the discovery that the information includes at least the relay identifier of the relay user equipment, the relay mobility state information, and the side link carrier information.
  • An embodiment of the present invention provides a method for transmitting an edge link information, which is described on the basis of Embodiment 1. The same content as Embodiment 1 is not described herein.
  • FIG. 7 is a schematic diagram of a method for transmitting side link information according to an embodiment of the present invention, which is described from the side of a remote user equipment.
  • the edge link information transmission method includes:
  • Step 701 Receive discovery information sent by the relay user equipment.
  • the discovery information includes at least the relay identifier, the relay mobility state information, and the side link carrier information of the relay user equipment.
  • the remote user equipment may decide to start receiving the discovery information, or may receive the second condition message broadcast by the base station, and start receiving the discovery information if the second condition is met.
  • the second condition information may include: a first threshold of channel quality of the primary serving cell of the remote user equipment; or a second threshold of channel quality of the primary serving cell and a third threshold of channel quality of the neighboring cell.
  • FIG. 8 is another schematic diagram of an edge link information transmission method according to an embodiment of the present invention.
  • the first user equipment has a relay capability, and becomes a relay user equipment after satisfying the first condition;
  • the second user equipment is a remote user equipment, and starts to receive discovery information and perform side link measurement after satisfying the second condition.
  • the side link information transmission method includes:
  • Step 801 The base station broadcasts the first condition information.
  • Step 802 The base station broadcasts second condition information that causes the remote user equipment to start detecting discovery information and performing edge link measurement.
  • Step 803 The first user equipment receives the first condition information and performs corresponding parameter configuration.
  • Step 804 The second user equipment receives the second condition information and performs corresponding parameter configuration.
  • Step 805 The first user equipment becomes a relay user equipment if the first condition is met.
  • Step 806 The first user equipment broadcasts discovery information.
  • the discovery information includes at least a relay identifier, a relay mobility state information, and side link carrier information of the relay user equipment.
  • UE1 starts broadcasting discovery information after satisfying the first condition.
  • Step 807 The second user equipment starts to receive the discovery information and performs edge link measurement if the second condition is met.
  • the second user equipment starts to receive the discovery information sent by the first user equipment and perform edge link measurement if the channel quality of the primary serving cell of the second user equipment is less than or equal to the first threshold.
  • UE2 gradually moves to the edge area of the primary serving cell, and the channel quality of the primary serving cell of the UE2 becomes worse and worse.
  • the UE2 starts to receive the discovery information sent by the UE1 and performs edge link measurement.
  • the channel quality of the primary serving cell of the second user equipment is less than or equal to the second threshold, and the channel quality of all neighboring cells of the second user equipment is less than or equal to the third threshold.
  • the second user equipment starts to receive the discovery information sent by the first user equipment and perform side link measurement.
  • the UE2 gradually moves to the edge area of the primary serving cell, and the channel quality of the primary serving cell of the UE2 is worse and worse; and the channel quality of all neighboring cells of the UE2 may still not be it is good.
  • the channel quality of the primary serving cell of the UE2 is less than or equal to the second threshold, and the channel quality of all the neighboring cells is less than or equal to the third threshold, the UE2 starts to receive the discovery information sent by the UE1 and performs edge chaining. Road channel measurement.
  • Step 808 After selecting a relay user equipment according to the measurement result, the second user equipment sends a connection request for establishing an edge link to the relay user equipment.
  • the second user equipment may determine the relay user equipment that performs relaying (for example, determine that the first user equipment performs relaying), and send the side to the relay user equipment. Connection request for the link.
  • Step 809 After receiving the connection request, the first user equipment establishes an edge link with the second user equipment.
  • the remote user equipment may determine the relay user equipment, or may be the base station.
  • the user equipment determines the relay user equipment.
  • the remote user equipment can measure the channel quality of the side link with one or more relay user equipments and report one or more measurement results to the base station.
  • the remote user equipment may determine the timing of reporting the measurement result, or may receive the third condition information broadcast by the base station, and report the measurement result if the third condition is met.
  • the third condition information may include: a fourth threshold of channel quality of the primary serving cell and a fifth threshold of channel quality of the neighboring cell.
  • FIG. 9 is another schematic diagram of an edge link information transmission method according to an embodiment of the present invention.
  • the first user equipment has a relay capability, and becomes a relay user equipment after satisfying the first condition;
  • the second user equipment is a remote user equipment, and after receiving the second condition, starts to receive discovery information and perform side link measurement, and
  • the measurement result is reported after the third condition is satisfied.
  • the edge link information transmission method includes:
  • Step 901 The base station broadcasts the first condition information.
  • Step 902 The base station broadcasts the second condition information and the third condition information that causes the remote user equipment to report the edge link measurement result.
  • Step 903 The first user equipment receives the first condition information and performs corresponding parameter configuration.
  • Step 904 The second user equipment receives the second condition information and the third condition information and performs corresponding parameter configuration.
  • Step 905 The first user equipment becomes a relay user equipment if the first condition is met.
  • Step 906 The first user equipment broadcasts discovery information.
  • the discovery information includes at least a relay identifier, a relay mobility state information, and side link carrier information of the relay user equipment.
  • Step 907 The second user equipment starts to receive the discovery information and performs the edge link measurement if the second condition is met.
  • the remote user equipment may receive discovery information sent by one or more relay user equipments. For each discovery information, the remote user equipment can measure the channel quality of the side link between the relay user equipment transmitting the discovery information; thus one or more measurements can be obtained.
  • Step 908 The second user equipment reports the measurement result if the third condition is met.
  • the second user equipment may be reported to the base station if the channel quality of the primary serving cell of the second user equipment is less than or equal to the fourth threshold and the channel quality of all neighboring cells is less than or equal to the fifth threshold.
  • the measurement result of the channel quality of the side link with the first user equipment and the relay identifier of the first user equipment may be reported to the base station if the channel quality of the primary serving cell of the second user equipment is less than or equal to the fourth threshold and the channel quality of all neighboring cells is less than or equal to the fifth threshold.
  • the other when the measurement result is reported by the remote user equipment, the other may be reported to be beneficial to the base station selection.
  • the auxiliary information of the relay user equipment is selected, for example, relay mobile state information of the relay user equipment, load level information, and side link carrier information.
  • the remote user equipment may measure the channel quality of the edge link with the plurality of relay user equipments to obtain a plurality of measurement results, and may only report partial measurement results. For example, in the reported measurement result, the value of the channel quality is greater than or equal to a sixth threshold, and/or the number of the measurement results is less than or equal to a seventh threshold.
  • the first threshold to the seventh threshold may be configured by the base station by using a broadcast message or dedicated radio resource control (RRC) signaling. Furthermore, one or more of the first threshold and the seventh threshold may be configured by the base station or may be predetermined. The specific values of the thresholds can be specifically determined according to actual scenarios. The present invention is not limited to these.
  • Step 909 The base station selects a relay user equipment for the second user equipment.
  • Step 910 The base station sends the information of the selected relay user equipment to the second user equipment.
  • the base station may select a suitable relay user equipment for the remote user equipment according to the reported measurement result, and combine other information (such as the load of each relay user equipment) (for example, determining that the first user equipment is the second user equipment. A relay service is provided), and then the information of the relay user equipment is sent to the remote user equipment.
  • Step 911 The second user equipment sends a connection request for establishing an edge link to the selected first user equipment.
  • Step 912 After receiving the connection request, the first user equipment establishes an edge link with the second user equipment.
  • the relay user equipment after receiving the connection request of the remote user equipment, the relay user equipment can confirm the connection establishment by replying to the side link. After receiving the connection establishment confirmation information of the relay user equipment, the remote user equipment may send the release air interface information to the base station, and the base station releases the configuration of the remote user equipment.
  • the above is a schematic description of the remote user equipment side, and the description about the relay user equipment side may refer to Embodiment 1.
  • the above process is only for illustrative description, but the present invention is not limited thereto.
  • the execution order of each step may be adjusted according to actual conditions, and one or more steps may be deleted according to actual conditions.
  • FIG. 6 a case of broadcasting the first condition information is shown in FIG. 6, a case of broadcasting the first condition information and the second condition information is shown in FIG. 8, and a first condition information is broadcasted in FIG.
  • the case of the second condition information and the third condition information but the present invention is not limited thereto.
  • Each condition information in the embodiment of the present invention is independent, for example, only the second condition information or the third condition information may be broadcasted, and the corresponding subsequent steps are adjusted accordingly.
  • the first condition information, the second condition information, and the third condition information may be used according to an actual scenario. One or any combination.
  • the remote user equipment can perform relay discovery to realize the expansion of the coverage of the cell by the discovery that the information includes at least the relay identifier of the relay user equipment, the relay mobility state information, and the side link carrier information.
  • the embodiment of the present invention provides a method for transmitting side link information, which is described on the basis of Embodiments 1 and 2. The same content as Embodiments 1 and 2 will not be described again.
  • FIG. 10 is a schematic diagram of a method for transmitting side link information according to an embodiment of the present invention, which is described from the base station side. As shown in FIG. 10, the edge link information transmission method includes:
  • Step 1001 The base station broadcasts one or any combination of the following information: the user equipment with the relay capability becomes the first condition information of the relay user equipment, so that the remote user equipment starts detecting the discovery information and performs the measurement of the edge link.
  • the second condition information is such that the remote user equipment reports the third condition information of the edge link measurement result.
  • FIG. 11 is another schematic diagram of an edge link information transmission method according to an embodiment of the present invention.
  • the first user equipment has a relay capability, and becomes a relay user equipment after satisfying the first condition;
  • the second user equipment is a remote user equipment, and after receiving the second condition, starts to receive discovery information and perform side link measurement, and
  • the measurement result is reported after the third condition is satisfied.
  • the edge link information transmission method includes:
  • Step 1101 The base station broadcasts one or any combination of the following information: the user equipment with the relay capability becomes the first condition information of the relay user equipment, so that the remote user equipment starts detecting the discovery information and performs the measurement of the edge link.
  • the second condition information is such that the remote user equipment reports the third condition information of the edge link measurement result.
  • Step 1102 The base station receives a relay request sent by the first user equipment to be a relay user equipment, where the relay request includes at least the relay identifier of the first user equipment, the relay mobile state information, and the edge link carrier. information;
  • Step 1103 The base station sends an acknowledgement message to the first user equipment to be the relay user equipment.
  • Step 1104 The base station receives the measurement result of the channel quality of the edge link between the second user equipment and the first user equipment reported by the second user equipment, and the relay identifier of the first user equipment.
  • Step 1105 The base station selects a relay user equipment for the second user equipment.
  • Step 1106 The base station sends information of the selected relay user equipment to the second user equipment.
  • the base station side can maintain a correspondence table between the ProSe Relay UE ID and the C-RNTI or the SL-RNTI.
  • the information obtained in this table includes the following ways:
  • the remote user equipment applies to the base station to become the relay user equipment, it sends the request information containing the ProSe Relay UE ID;
  • the remote user equipment After the remote user equipment receives the first condition information sent by the base station and meets the first condition, the user equipment directly sends the information containing the ProSe Relay UE ID to the base station, so that the base station knows that the user equipment is interested in becoming a relay user. device.
  • This information can be included in the SidelinkUEInformation IE or the new IE.
  • the remote user equipment can perform relay discovery to realize the expansion of the coverage of the cell by the discovery that the information includes at least the relay identifier of the relay user equipment, the relay mobility state information, and the side link carrier information.
  • the base station broadcasts the first condition information, so that the user equipment with the relay capability becomes the relay user equipment when the first condition is met; the base station broadcasts the second condition information, so that the remote user equipment can start detecting when the second condition is met.
  • the discovery information and the edge link measurement are performed; the base station broadcasts the third condition information, so that the remote user equipment reports the edge link measurement result when the third condition is met.
  • the embodiment of the invention provides an edge link information transmission device, which is configured in a user equipment or a relay user equipment with relay capability.
  • the embodiment of the present invention corresponds to the side link information transmission method in Embodiment 1, and the same content is not described herein again.
  • FIG. 12 is a schematic diagram of an edge link information transmission apparatus according to an embodiment of the present invention. As shown in FIG. 12, the side link information transmission apparatus 1200 includes:
  • the discovery information sending unit 1201 sends the discovery information; the discovery information includes at least the relay identifier of the relay user equipment, the relay mobility state information, and the side link carrier information.
  • the edge link information transmission device 1200 may further include:
  • the relay parameter receiving unit 1202 receives the first condition information that is broadcasted by the base station to enable the user equipment with the relay capability to become the relay user equipment, where the first condition information includes at least: an upper bound value of the air interface channel quality And lower bound values, and/or, moving state condition information.
  • the edge link information transmission device 1200 may further include:
  • the edge link information transmission device 1200 may further include:
  • the relay request sending unit 1204 sends a relay request to the base station as the relay user equipment; wherein the relay request includes at least the relay identifier, the mobile state information, and the side link carrier information;
  • the relay request confirming unit 1205 receives an acknowledgement message transmitted by the base station to be a relay user equipment.
  • the edge link information transmission device 1200 may further include:
  • the connection request receiving unit 1206 receives a connection request sent by the remote user equipment for establishing an edge link.
  • the edge link establishing unit 1207 establishes an edge link with the remote user equipment.
  • the side link information transmission device 1200 does not need to include all of the above modules or units, and only one or more units or modules may be configured or used. You can determine the specific configuration based on the actual scenario.
  • the embodiment of the invention further provides a user equipment, which is configured with the edge link information transmission device 1200 described above.
  • FIG. 13 is a schematic diagram of a user equipment according to an embodiment of the present invention.
  • the user device 1300 can include a central processing unit 100 and a memory 140; the memory 140 is coupled to the central processing unit 100.
  • the figure is exemplary; other types of structures may be used in addition to or in place of the structure to implement telecommunications functions or other functions.
  • the functionality of the edge link information transmission device 1200 can be integrated into the central processor 100.
  • the central processing unit 100 may be configured to perform the following control: sending discovery information; the discovery information includes at least a relay identifier of the user equipment, relay mobility state information, and side link carrier information.
  • the side link information transmission device 1200 can be configured separately from the central processing unit 100.
  • the side link information transmission device 1200 can be configured as a chip connected to the central processing unit 100, and controlled by a central processing unit. The function of the side link information transmission device 1200 is implemented.
  • the user equipment 1300 may further include: a communication module 110, an input unit 120, an audio processing unit 130, a memory 140, a camera 150, a display 160, and a power source 170.
  • the functions of the above components are similar to those of the prior art, and are not described herein again. It should be noted that the user equipment 1300 does not have to include all the components shown in FIG. 13, and the above components are not required; in addition, the user equipment 1300 may further include components not shown in FIG. There are technologies.
  • the remote user equipment can perform relay discovery to realize the expansion of the coverage of the cell by the discovery that the information includes at least the relay identifier of the relay user equipment, the relay mobility state information, and the side link carrier information.
  • the embodiment of the invention provides an edge link information transmission device, which is configured in a remote user equipment.
  • the embodiment of the present invention corresponds to the side link information transmission method in Embodiment 2, and the same content is not described herein again.
  • FIG. 14 is a schematic diagram of an edge link information transmission apparatus according to an embodiment of the present invention. As shown in FIG. 14, the side link information transmission apparatus 1400 includes:
  • the discovery information receiving unit 1401 receives the discovery information sent by the relay user equipment; the discovery information includes at least the relay identifier, the relay mobility state information, and the side link carrier information of the relay user equipment.
  • the edge link measuring unit 1402 measures the channel quality of the edge link between the remote user equipment and the relay user equipment.
  • the side link information transmission device 1400 may further include:
  • the parameter receiving unit 1403 receives second condition information that is broadcast by the base station to enable the remote user equipment to start detecting discovery information and perform edge link measurement, and/or to cause the remote user equipment to report the edge link measurement result third. Conditional information.
  • the second condition information may include: a first threshold of channel quality of the primary serving cell; or a second threshold of channel quality of the primary serving cell and a third threshold of channel quality of the neighboring cell; the third condition The information may include a fourth threshold of channel quality of the primary serving cell and a fifth threshold of channel quality of the neighboring cell.
  • the discovery information receiving unit 1401 may be further configured to: if the channel quality of the primary serving cell of the remote user equipment is less than or equal to the first threshold, or in the remote user The channel quality of the primary serving cell of the device is less than or equal to the second threshold and the channel quality of all neighboring cells is When the third threshold is less than or equal to, the discovery information sent by the relay user equipment is started to be received.
  • the side link information transmission device 1400 may further include:
  • the measurement result reporting unit 1404 reports to the base station if the channel quality of the primary serving cell of the remote user equipment is less than or equal to the fourth threshold and the channel quality of all neighboring cells is less than or equal to the fifth threshold. a measurement result of channel quality of a link between the remote user equipment and the relay user equipment and a relay identifier of the relay user equipment.
  • the measurement result reporting unit 1404 may be further configured to report one or any combination of the following information: relay mobile state information, load level information, and side link carrier information of the relay user equipment. .
  • the value of the channel quality is greater than or equal to a sixth threshold, and/or the number of the measurement results is less than or equal to the seventh. Threshold.
  • the side link information transmission device 1400 may further include:
  • the relay information receiving unit 1405 receives information of the relay user equipment selected by the base station for the remote user equipment
  • connection request transmitting unit 1406 transmits a connection request to establish a side link to the selected relay user equipment.
  • the side link information transmission device 1400 does not need to include all of the above modules or units, and only one or more units or modules may be configured or used. You can determine the specific configuration based on the actual scenario.
  • the embodiment of the invention further provides a user equipment, which is configured with the edge link information transmission device 1400 described above.
  • the configuration of the user equipment may be as shown in FIG.
  • the remote user equipment can perform relay discovery to realize the expansion of the coverage of the cell by the discovery that the information includes at least the relay identifier of the relay user equipment, the relay mobility state information, and the side link carrier information.
  • the embodiment of the invention provides an edge link information transmission device, which is configured in a base station.
  • the embodiment of the present invention corresponds to the side link information transmission method in Embodiment 3, and the same content is not described herein again.
  • the link information transmission device 1500 includes:
  • the parameter sending unit 1501 broadcasts one or any combination of the following information: the user equipment with the relay capability becomes the first condition information of the relay user equipment, so that the remote user equipment starts detecting the discovery information and performing the edge link measurement.
  • the second condition information is such that the remote user equipment reports the third condition information of the edge link measurement result.
  • the side link information transmission device 1500 may further include:
  • the relay request receiving unit 1502 receives a relay request sent by the user equipment to be a relay user equipment, where the relay request includes at least the relay identifier, the relay mobile state information, and the side link carrier information of the user equipment. ;
  • the relay request feedback unit 1503 transmits a confirmation message to the user equipment to be a relay user equipment.
  • the side link information transmission device 1500 may further include:
  • the measurement result receiving unit 1504 receives the measurement result of the channel quality of the edge link between the remote user equipment and the relay user equipment reported by the remote user equipment, and the relay identifier of the relay user equipment.
  • the side link information transmission device 1500 may further include:
  • the relay selection unit 1505 selects a relay user equipment for the remote user equipment
  • the relay information transmitting unit 1506 transmits the information of the selected relay user equipment to the remote user equipment.
  • the side link information transmission device 1500 does not need to include all the above modules or units, and only one or more units or modules may be configured or used. You can determine the specific configuration based on the actual scenario.
  • the embodiment of the invention further provides a base station, which is configured with the edge link information transmission device 1500 described above.
  • FIG. 16 is a schematic diagram of a structure of a base station according to an embodiment of the present invention.
  • base station 1600 can include a central processing unit (CPU) 200 and memory 210; and memory 210 is coupled to central processing unit 200.
  • the memory 210 can store various data; in addition, a program for information processing is stored, and the program is executed under the control of the central processing unit 200.
  • the base station 1600 can implement the edge link information transmission method as described in Embodiment 3.
  • the central processing unit 200 can be configured to implement the functions of the side link information transmission device 1500; that is, the central processing unit 200 can be configured to perform control of broadcasting one or any combination of the following information: enabling users with relay capabilities
  • the device becomes the first condition information of the relay user equipment, so that the remote user equipment starts to detect the second condition information of the discovery information, so that the remote user equipment reports the third condition information of the edge link measurement result.
  • the base station 1600 may further include: a transceiver 220, an antenna 230, and the like; wherein the functions of the foregoing components are similar to those of the prior art, and details are not described herein again. It should be noted that the base station 1600 also does not have to include all of the components shown in FIG. 16; in addition, the base station 1600 may also include components not shown in FIG. 16, and reference may be made to the prior art.
  • the remote user equipment can perform relay discovery to realize the expansion of the coverage of the cell by the discovery that the information includes at least the relay identifier of the relay user equipment, the relay mobility state information, and the side link carrier information.
  • the base station broadcasts the first condition information, so that the user equipment with the relay capability becomes the relay user equipment when the first condition is met; the base station broadcasts the second condition information, so that the remote user equipment can start detecting when the second condition is met.
  • the discovery information and the edge link measurement are performed; the base station broadcasts the third condition information, so that the remote user equipment reports the edge link measurement result when the third condition is met.
  • the embodiment of the present invention further provides a communication system, and the same content as Embodiments 1 to 6 is not described again.
  • 17 is a schematic diagram of a communication system according to an embodiment of the present invention. As shown in FIG. 17, the communication system 1700 includes a relay user equipment 1701 and a remote user equipment 1702.
  • the relay user equipment 1701 sends the discovery information.
  • the discovery information includes at least the relay identifier, the relay mobility state information, and the side link carrier information of the relay user equipment.
  • the remote user equipment 1702 receives the relay user.
  • the communication system 1700 may further include:
  • the base station 1703 broadcasts one or any combination of the following information: causing the user equipment with the relay capability to become the first condition information of the relay user equipment, so that the remote user equipment starts detecting the discovery information and performing the edge link.
  • the measured second condition information is such that the remote user equipment reports third condition information of the edge link measurement result.
  • An embodiment of the present invention provides a computer readable program, wherein when the program is executed in a user equipment, the program causes a computer to perform edge link information transmission as described in Embodiment 1 or 2 in the user equipment. method.
  • An embodiment of the present invention provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute an edge link information transmission method as described in Embodiment 1 or 2 in a user equipment.
  • An embodiment of the present invention provides a computer readable program, wherein when the program is executed in a base station, the program causes a computer to execute an edge link information transmission method as described in Embodiment 3 in the base station.
  • An embodiment of the present invention provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute an edge link information transmission method as described in Embodiment 3 in a base station.
  • the above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.
  • One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks described with respect to the figures and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors One or more microprocessors in conjunction with DSP communication or any other such configuration.

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Abstract

一种边链路信息传输方法、装置以及通信系统。所述边链路信息传输方法包括：中继用户设备发送发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息。由此，远程用户设备可以进行中继发现，实现小区覆盖范围的扩大。

Description

边链路信息传输方法、装置以及通信系统 技术领域
本发明实施例涉及通信技术领域，特别涉及一种边链路(SideLink)信息传输方法、装置以及通信系统。
背景技术
近年来，无线通信技术得到了高速发展，3GPP标准化已经发展到Rel.13，关键技术涵盖了小小区(small cell)的广泛配置、载波聚合(CA，carrier aggregation)、3D多天线技术(例如MIMO，Multiple Input Multiple Output)、非授权频段的LTE化(例如Licensed-Assisted-Access)等。
边链路(Sidelink)通信方式是指数据包无需通过核心网和基站，用户设备UE1和UE2之间可以直接建立通信链路而进行通信。边链路通信也可以称为设备到设备(D2D，Device to Device)通信。在进行边链路(Sidelink)通信前，一般会进行边链路发现过程。例如，UE1要通过边链路通信方式发送信息给UE2之前，先要发现UE2是否在附近。
图1是边链路通信的一示意图，示出了两个都在基站(例如eNB)覆盖下UE(UE1和UE2)进行边链路发现或建立边链路通信的情况。图2是边链路通信的另一示意图，示出了一个UE(UE1)在基站覆盖下而另一个UE(UE2)不在基站覆盖下时，进行边链路发现或建立边链路通信的情况。图3是边链路通信的另一示意图，示出了两个都不在基站覆盖下的UE(UE1和UE2)进行边链路发现或建立边链路通信的情况。
边链路通信方式可以用于扩大小区覆盖范围。下面结合图1和图2给出两个扩大覆盖范围的例子。
场景1：如图1所示，一个用户设备(UE2)位于小区边缘而信号比较弱，很可能即将离开该小区的覆盖。另外，附近有被网络授权的具有中继功能的用户设备(例如UE1)。为了避免业务中断，UE2发现该中继(也可称为中继用户设备)UE1后，可以通过该中继UE1接入基站，继续进行正常的业务通信。
场景2：如图2所示，一个用户设备(例如UE2)位于没有网络覆盖的区域。并且，附近有被网络授权的具有中继功能的用户设备(例如UE1)。为了接入网络进行 通信，UE2发现位于小区覆盖内的中继UE1后，可以通过该中继UE1接入基站。
在上述场景描述中，UE2可以被称为远程用户设备(remote UE)，该远程用户设备可能位于小区覆盖之内，也可能位于小区覆盖之外。具有中继功能的用户设备(例如UE1)可以被称为中继用户设备，也被称为用户设备-网络间中继(UE-Network relay)，也可以简称为中继。
应该注意，上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
但是，发明人发现在现有系统中，并没有对中继用户设备和远程用户设备之间的边链路信息进行完整定义，也没有定义具有中继能力的用户设备如何成为中继用户设备，以及没有定义远程用户设备如何进行中继发现以及边链路测量及上报的触发等等。
本发明实施例提供一种边链路信息传输方法、装置以及通信系统。期望通过中继用户设备实现小区覆盖范围的扩大。
根据本发明实施例的第一个方面，提供一种边链路信息传输方法，应用于中继用户设备，所述边链路信息传输方法包括：
中继用户设备发送发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息。
根据本发明实施例的第二个方面，提供一种边链路信息传输装置，配置于中继用户设备中，所述边链路信息传输装置包括：
发现信息发送单元，发送发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息。
根据本发明实施例的第三个方面，提供一种边链路信息传输方法，应用于远程用户设备，所述边链路信息传输方法包括：
接收中继用户设备发送的发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息。
根据本发明实施例的第四个方面，提供一种边链路信息传输装置，配置于远程用 户设备中，所述边链路信息传输装置包括：
发现信息接收单元，接收中继用户设备发送的发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息。
根据本发明实施例的第五个方面，提供一种边链路信息传输方法，应用于基站，所述边链路信息传输方法包括：
基站广播如下信息的其中之一或任意组合：使得具有中继能力的用户设备成为中继用户设备的第一条件信息，使得远程用户设备开始检测发现信息和进行边链路测量的第二条件信息，使得远程用户设备上报边链路测量结果的第三条件信息。
根据本发明实施例的第六个方面，提供一种边链路信息传输装置，配置于基站，所述边链路信息传输装置包括：
参数发送单元，广播如下信息的其中之一或任意组合：使得具有中继能力的用户设备成为中继用户设备的第一条件信息，使得远程用户设备开始检测发现信息和进行边链路测量的第二条件信息，使得远程用户设备上报边链路测量结果的第三条件信息。
根据本发明实施例的第七个方面，提供一种通信系统，所述通信系统包括：
中继用户设备，发送发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息；
远程用户设备，接收所述中继用户设备发送的所述发现信息。
根据本发明实施例的又一个方面，提供一种计算机可读程序，其中当在基站中执行所述程序时，所述程序使得计算机在所述基站中执行如上所述的边链路信息传输方法。
根据本发明实施例的又一个方面，提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在基站中执行如上所述的边链路信息传输方法。
根据本发明实施例的又一个方面，提供一种计算机可读程序，其中当在用户设备中执行所述程序时，所述程序使得计算机在所述用户设备中执行如上所述的边链路信息传输方法。
根据本发明实施例的又一个方面，提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在用户设备中执行如上所述的边链路信息传输方法。
本发明实施例的有益效果在于：通过发现信息至少包括中继用户设备的中继标识、中继移动状态信息以及边链路载波信息，远程用户设备可以进行中继发现，实现小区覆盖范围的扩大。
此外，基站广播第一条件信息，可以使得具有中继能力的用户设备在满足第一条件时成为中继用户设备；基站广播第二条件信息，可以使得远程用户设备在满足第二条件时开始检测发现信息和进行边链路测量；基站广播第三条件信息，可以使得远程用户设备在满足第三条件时上报边链路测量结果。
参照后文的说明和附图，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式。应该理解，本发明的实施方式在范围上并不因而受到限制。在所附权利要求的条款的范围内，本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
参照以下的附图可以更好地理解本发明的很多方面。附图中的部件不是成比例绘制的，而只是为了示出本发明的原理。为了便于示出和描述本发明的一些部分，附图中对应部分可能被放大或缩小。
在本发明的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
图1是边链路通信的一示意图；
图2是边链路通信的另一示意图；
图3是边链路通信的另一示意图；
图4是本发明实施例1的边链路信息传输方法的一示意图；
图5是本发明实施例1的边链路信息传输方法的另一示意图；
图6是本发明实施例1的边链路信息传输方法的另一示意图；
图7是本发明实施例2的边链路信息传输方法的一示意图；
图8是本发明实施例2的边链路信息传输方法的另一示意图；
图9是本发明实施例2的边链路信息传输方法的另一示意图；
图10是本发明实施例3的边链路信息传输方法的一示意图；
图11是本发明实施例3的边链路信息传输方法的另一示意图；
图12是本发明实施例4的边链路信息传输装置的一示意图；
图13是本发明实施例4的用户设备的一示意图；
图14是本发明实施例5的边链路信息传输装置的一示意图；
图15是本发明实施例6的边链路信息传输装置的一示意图；
图16是本发明实施例6的基站的一示意图；
图17是本发明实施例7的通信系统的一示意图。
具体实施方式
参照附图，通过下面的说明书，本发明的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本发明的特定实施方式，其表明了其中可以采用本发明的原则的部分实施方式，应了解的是，本发明不限于所描述的实施方式，相反，本发明包括落入所附权利要求的范围内的全部修改、变型以及等同物。
实施例1
本发明实施例提供一种边链路信息传输方法。图4是本发明实施例的边链路信息传输方法的一示意图，从中继用户设备一侧进行说明。
如图4所示，所述边链路信息传输方法包括：
步骤401，中继用户设备发送发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息。
在本实施例中，中继用户设备可以广播该发现信息。其中该中继用户设备首先是具有中继能力的用户设备，即预先获得了边链路功能(ProSe Function)实体的授权，具有中继标识(ProSe Relay UE ID)。此外，该具有中继能力的用户设备在满足预定条件之后，可以被确定成为中继用户设备。
其中，中继移动状态信息例如是指示该中继用户设备处于低速、中速或高速状态的信息；可以将用户设备的速度分为多个类别，并用该中继移动状态信息进行指示。 边链路载波信息是表示该中继用户设备用于边链路的载波信息，例如频点、带宽等信息。该边链路载波信息可以根据接收信号和发送信号分别指示，即可以区分为ProSe接收载波信息和ProSe发送载波信息。
在本实施例中，远程用户设备可以接收一个或多个中继用户设备发送的发现信息，然后可以根据发现信息和信道质量自行确定一个中继用户设备，并与该确定的中继用户设备进行边链路连接。
例如，在如图2所示的场景中，UE2可能接收到多个中继用户设备发送的发现信息，然后从其中确定UE1(例如UE1为低速而比较稳定)进行中继，由此可以进行中继发现而扩大小区覆盖范围。
图5是本发明实施例的边链路信息传输方法的另一示意图，如图5所示，所述边链路信息传输方法包括：
步骤501，中继用户设备向远程用户设备发送发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息。
步骤502，中继用户设备接收远程用户设备发送的用于建立边链路的连接请求。
步骤503，中继用户设备建立与所述远程用户设备之间的边链路。
在本实施例中，具有中继能力的用户设备可以根据预设条件自行确定为中继用户设备；也可以接收基站广播的第一条件消息，在满足第一条件的情况下成为中继用户设备。其中，所述第一条件信息至少可以包括：空口信道质量的上界值和下界值，和/或，移动状态条件信息。
此外，具有中继能力的用户设备在广播发现信息前，还可以通过信息与基站进行交互，以便基站确认该用户设备成为真正的中继用户设备。
图6是本发明实施例的边链路信息传输方法的另一示意图。其中第一用户设备具有中继能力，在得到基站确认后成为中继用户设备；第二用户设备为远程用户设备，例如处于小区边缘区域或者在小区覆盖范围之外。
如图6所示，所述边链路信息传输方法包括：
步骤601，基站广播使得具有中继能力的用户设备成为中继用户设备的第一条件信息。
其中，该第一条件信息可以仅包含空口信道质量的上界值和下界值；也可以仅包含移动状态条件信息，例如允许低速用户设备成为中继用户设备的信息，或者不允许 高速用户设备成为中继用户设备的信息。此外，也可以同时包括上述信息，即空口信道质量的上界值和下界值，以及移动状态条件信息。本发明不限于此，可以根据实际场景确定具体的信息。
步骤602，第一用户设备接收到第一条件信息并进行相应的参数配置。
步骤603，第一用户设备在满足第一条件的情况下成为中继用户设备。
在本实施例中，在第一用户设备的空口信道质量小于或等于所述上界值且大于或等于所述下界值的情况下，和/或，在第一用户设备的移动状态符合所述移动状态条件信息的情况下，第一用户设备确定成为中继用户设备。
例如，第一用户设备要成为中继用户设备，其主服务小区的信道质量的测量值需要小于上界值且大于下界值，即第一用户设备可能不位于小区的中心区域。信道质量的测量值例如可以是参考信号接收功率(RSRP，Reference Signal Received Power)或参考信号接收质量(RSRQ，Reference Signal Received Quality)，或者其他可反映信道质量的测量值。
此外，用户设备的移动状态可以分为低速，中速和高速。如果广播信息中只允许低速和中速用户设备可以成为中继用户设备，那么高速用户设备将不能成为中继用户设备。
步骤604，第一用户设备向基站发送成为所述中继用户设备的中继请求；其中所述中继请求至少包括所述中继标识以及所述边链路载波信息；
步骤605，第一用户设备接收所述基站发送的成为中继用户设备的确认消息。
其中，基站根据收到的中继标识(ProSe Relay UE ID)可以和小区无线网络临时标识(C-RNTI，Cell Radio Network Temporary Identifier)，边链路无线网络临时标识(SL-RNTI，SideLink Radio Network Temporary Identifier)等其他UE ID信息进行一一对应，即基站侧可以维护一个ProSe Relay UE ID与C-RNTI或SL-RNTI之间的对应表。
步骤606，第一用户设备广播发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息。
步骤607，第二用户设备接收到该发现信息后，发送用于建立边链路的连接请求。
例如，第二用户设备在接收到多个发现信息的情况下，可以自定确定进行中继的中继用户设备(例如确定第一用户设备进行中继)，并向该中继用户设备发送边链路 的连接请求。
步骤608，第一用户设备接收连接请求之后，建立与第二用户设备之间的边链路。
值得注意的是，以上对于中继用户设备侧进行了示意性说明，关于远程用户设备侧的说明可以参考实施例2，其中本发明实施例可以适用于图1所示的场景，也可以适用于图2所示的场景。另外，以上过程仅用于示意性说明，但本发明不限于此，例如各步骤的执行顺序可以根据实际情况进行调整，此外也可以根据实际情况删除其中的一个或多个步骤。
由上述实施例可知，通过发现信息至少包括中继用户设备的中继标识、中继移动状态信息以及边链路载波信息，远程用户设备可以进行中继发现，实现小区覆盖范围的扩大。
实施例2
本发明实施例提供一种边链路信息传输方法，在实施例1的基础上进行说明，与实施例1相同的内容不再赘述。
图7是本发明实施例的边链路信息传输方法的一示意图，从远程用户设备一侧进行说明。如图7所示，所述边链路信息传输方法包括：
步骤701，接收中继用户设备发送的发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息。
在本实施例中，远程用户设备可以自定决定开始接收发现信息的时机，也可以接收基站广播的第二条件消息，在满足第二条件的情况下开始接收发现信息。其中，所述第二条件信息可以包括：远程用户设备的主服务小区的信道质量的第一阈值；或者，主服务小区的信道质量的第二阈值以及邻小区的信道质量的第三阈值。
图8是本发明实施例的边链路信息传输方法的另一示意图。其中第一用户设备具有中继能力，在满足第一条件后成为中继用户设备；第二用户设备为远程用户设备，在满足第二条件之后开始接收发现信息和进行边链路测量。
如图8所示，所述边链路信息传输方法包括：
步骤801，基站广播第一条件信息；
步骤802，基站广播使得远程用户设备开始检测发现信息和进行边链路测量的第二条件信息；
步骤803，第一用户设备接收到第一条件信息并进行相应的参数配置。
步骤804，第二用户设备接收到第二条件信息并进行相应的参数配置。
步骤805，第一用户设备在满足第一条件的情况下成为中继用户设备。
步骤806，第一用户设备广播发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息。
例如，如图1所示的场景中，UE1满足第一条件之后开始广播发现信息。
步骤807，第二用户设备在满足第二条件的情况下开始接收发现信息并进行边链路测量。
在一个实施方式中，在第二用户设备的主服务小区的信道质量小于或等于所述第一阈值的情况下，第二用户设备开始接收第一用户设备发送的发现信息和进行边链路测量。
例如，如图1所示的场景中，UE2逐渐向主服务小区的边缘区域移动，则该UE2的主服务小区的信道质量会越来越差。当UE2的主服务小区的信道质量小于或等于所述第一阈值的情况下，UE2开始接收UE1发送的发现信息并进行边链路测量。
在另一个实施方式中，在第二用户设备的主服务小区的信道质量小于或等于所述第二阈值，并且该第二用户设备的所有邻小区的信道质量均小于或等于所述第三阈值的情况下，第二用户设备开始接收第一用户设备发送的发现信息和进行边链路测量。
例如，如图1所示的场景中，UE2逐渐向主服务小区的边缘区域移动，则该UE2的主服务小区的信道质量会越来越差；而UE2的所有邻小区的信道质量可能仍然不好。当UE2的主服务小区的信道质量小于或等于所述第二阈值，且所有邻小区的信道质量均小于或等于所述第三阈值的情况下，UE2开始接收UE1发送的发现信息并进行边链路信道测量。
步骤808，第二用户设备根据测量结果选择一个中继用户设备后，向该中继用户设备发送用于建立边链路的连接请求。
例如，第二用户设备在接收到多个发现信息的情况下，可以自定确定进行中继的中继用户设备(例如确定第一用户设备进行中继)，并向该中继用户设备发送边链路的连接请求。
步骤809，第一用户设备接收连接请求之后，建立与第二用户设备之间的边链路。
在本实施例中，远程用户设备可以自定确定中继用户设备，也可以由基站为该远 程用户设备确定中继用户设备。此外，远程用户设备可以测量与一个或多个中继用户设备之间边链路的信道质量，并将一个或多个测量结果上报给基站。
其中，远程用户设备可以自定决定上报测量结果的时机，也可以接收基站广播的第三条件信息，在满足第三条件的情况下上报测量结果。其中，所述第三条件信息可以包括：主服务小区的信道质量的第四阈值以及邻小区的信道质量的第五阈值。
图9是本发明实施例的边链路信息传输方法的另一示意图。其中第一用户设备具有中继能力，在满足第一条件后成为中继用户设备；第二用户设备为远程用户设备，在满足第二条件之后开始接收发现信息和进行边链路测量，并且在满足第三条件之后上报测量结果。
如图9所示，所述边链路信息传输方法包括：
步骤901，基站广播第一条件信息；
步骤902，基站广播第二条件信息和使得远程用户设备上报边链路测量结果的第三条件信息；
步骤903，第一用户设备接收到第一条件信息并进行相应的参数配置。
步骤904，第二用户设备接收到第二条件信息和第三条件信息并进行相应的参数配置。
步骤905，第一用户设备在满足第一条件的情况下成为中继用户设备。
步骤906，第一用户设备广播发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息。
步骤907，第二用户设备在满足第二条件的情况下开始接收发现信息并进行边链路测量。
在本实施例中，远程用户设备可以接收一个或多个中继用户设备发送的发现信息。对于每一发现信息，远程用户设备可以测量与发送该发现信息的中继用户设备之间的边链路的信道质量；由此可以获得一个或多个测量结果。
步骤908，第二用户设备在满足第三条件的情况下上报测量结果。
其中，可以在第二用户设备的主服务小区的信道质量小于或等于所述第四阈值且所有邻小区的信道质量均小于或等于所述第五阈值的情况下，向基站上报第二用户设备与第一用户设备之间边链路的信道质量的测量结果以及第一用户设备的中继标识。
在本实施例中，在远程用户设备上报测量结果时，还可以上报其他有利于基站选 择中继用户设备的辅助信息，例如：所述中继用户设备的中继移动状态信息、负载水平信息以及边链路载波信息。
在本实施例中，远程用户设备可能测量与多个中继用户设备之间的边链路的信道质量而获得多个测量结果，可以只上报部分测量结果。例如，在上报的测量结果中，所述信道质量的值大于或等于第六阈值，和/或，所述测量结果的个数小于或等于第七阈值。
在本实施例中，第一阈值至第七阈值可以由基站通过广播消息或者专用无线资源控制(RRC，Radio Resource Control)信令进行配置。此外，第一阈值和第七阈值中的一个或多个可以由基站配置，也可以预先确定。关于各阈值的具体数值，可以根据实际场景具体确定。本发明对这些不进行限制。
步骤909，基站为第二用户设备选择中继用户设备。
步骤910，基站向第二用户设备发送选择的中继用户设备的信息；
在本实施例中，基站可以根据上报的测量结果，结合其他信息(例如各中继用户设备的负载)为远程用户设备选择合适的中继用户设备(例如确定第一用户设备为第二用户设备提供中继服务)，然后将该中继用户设备的信息发送给该远程用户设备。
步骤911，第二用户设备向被选择的第一用户设备发送建立边链路的连接请求。
步骤912，第一用户设备接收连接请求之后，建立与第二用户设备之间的边链路。
在本实施例中，中继用户设备收到远程用户设备的连接请求后，可以通过边链路回复确认连接建立。远程用户设备收到中继用户设备的连接建立确认信息后，可以发送释放空口信息给基站，基站释放该远程用户设备的配置。
值得注意的是，以上对于远程用户设备侧进行了示意性说明，关于中继用户设备侧的说明可以参考实施例1。另外，以上过程仅用于示意性说明，但本发明不限于此，例如各步骤的执行顺序可以根据实际情况进行调整，此外也可以根据实际情况删除其中的一个或多个步骤。
此外，附图6中示出了广播第一条件信息的情况，附图8中示出了广播第一条件信息和第二条件信息的情况，附图9中示出了广播第一条件信息、第二条件信息和第三条件信息的情况，但本发明不限于此。本发明实施例中的各条件信息是分别独立的，例如也可以仅广播第二条件信息或者第三条件信息，相应的后续步骤进行相应的调整。可以根据实际场景使用第一条件信息、第二条件信息和第三条件信息中的其中之 一或任意组合。
由上述实施例可知，通过发现信息至少包括中继用户设备的中继标识、中继移动状态信息以及边链路载波信息，远程用户设备可以进行中继发现，实现小区覆盖范围的扩大。
实施例3
本发明实施例提供一种边链路信息传输方法，在实施例1和2的基础上进行说明，与实施例1和2相同的内容不再赘述。
图10是本发明实施例的边链路信息传输方法的一示意图，从基站一侧进行说明。如图10所示，所述边链路信息传输方法包括：
步骤1001，基站广播如下信息的其中之一或任意组合：使得具有中继能力的用户设备成为中继用户设备的第一条件信息，使得远程用户设备开始检测发现信息和进行边链路测量的第二条件信息，使得远程用户设备上报边链路测量结果的第三条件信息。
图11是本发明实施例的边链路信息传输方法的另一示意图。其中第一用户设备具有中继能力，在满足第一条件后成为中继用户设备；第二用户设备为远程用户设备，在满足第二条件之后开始接收发现信息和进行边链路测量，并且在满足第三条件之后上报测量结果。
如图11所示，所述边链路信息传输方法包括：
步骤1101，基站广播如下信息的其中之一或任意组合：使得具有中继能力的用户设备成为中继用户设备的第一条件信息，使得远程用户设备开始检测发现信息和进行边链路测量的第二条件信息，使得远程用户设备上报边链路测量结果的第三条件信息。
步骤1102，基站接收第一用户设备发送的成为中继用户设备的中继请求；其中所述中继请求至少包括所述第一用户设备的中继标识，中继移动状态信息以及边链路载波信息；
步骤1103，基站向第一用户设备发送成为中继用户设备的确认消息。
步骤1104，基站接收第二用户设备上报的第二用户设备与第一用户设备之间边链路的信道质量的测量结果以及所述第一用户设备的中继标识。
步骤1105，基站为所述第二用户设备选择中继用户设备；
步骤1106，基站向所述第二用户设备发送被选择的中继用户设备的信息。
值得注意的是，以上仅对于涉及基站侧的交互进行了示意性说明，关于中继用户设备侧和远程用户设备侧的说明可以参考实施例1和2。另外，以上过程仅用于示意性说明，但本发明不限于此，例如各步骤的执行顺序可以根据实际情况进行调整，此外也可以根据实际情况删除其中的一个或多个步骤。
在本实施例中，基站侧可以维护一个ProSe Relay UE ID和C-RNTI或SL-RNTI之间的对应表。该表中信息的取得包括以下几个途径：
---远程用户设备向基站申请成为中继用户设备时，会发送含有ProSe Relay UE ID的请求信息；
---远程用户设备收到基站发送的第一条件信息，并符合第一条件之后，该用户设备直接发送含有ProSe Relay UE ID的信息给基站，让基站知道该用户设备有兴趣成为中继用户设备。该信息可包含在SidelinkUEInformation IE或新的IE中。
由上述实施例可知，通过发现信息至少包括中继用户设备的中继标识、中继移动状态信息以及边链路载波信息，远程用户设备可以进行中继发现，实现小区覆盖范围的扩大。
此外，基站广播第一条件信息，可以使得具有中继能力的用户设备在满足第一条件时成为中继用户设备；基站广播第二条件信息，可以使得远程用户设备在满足第二条件时开始检测发现信息和进行边链路测量；基站广播第三条件信息，可以使得远程用户设备在满足第三条件时上报边链路测量结果。
实施例4
本发明实施例提供一种边链路信息传输装置，配置于具有中继能力的用户设备或者中继用户设备中。本发明实施例对应于实施例1中的边链路信息传输方法，相同的内容不再赘述。
图12是本发明实施例的边链路信息传输装置的一示意图，如图12所示，所述边链路信息传输装置1200包括：
发现信息发送单元1201，发送发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息。
如图12所示，所述边链路信息传输装置1200还可以包括：
中继参数接收单元1202，接收基站广播的使得具有中继能力的用户设备成为所述中继用户设备的第一条件信息；其中，所述第一条件信息至少包括：空口信道质量的上界值和下界值，和/或，移动状态条件信息。
如图12所示，所述边链路信息传输装置1200还可以包括：
中继确定单元1203，在所述用户设备的空口信道质量小于或等于所述上界值且大于或等于所述下界值的情况下，和/或，在所述用户设备的移动状态符合所述移动状态条件信息的情况下，确定所述用户设备成为所述中继用户设备。
如图12所示，所述边链路信息传输装置1200还可以包括：
中继请求发送单元1204，向基站发送成为所述中继用户设备的中继请求；其中所述中继请求至少包括所述中继标识，移动状态信息以及所述边链路载波信息；
中继请求确认单元1205，接收所述基站发送的成为中继用户设备的确认消息。
如图12所示，所述边链路信息传输装置1200还可以包括：
连接请求接收单元1206，接收远程用户设备发送的用于建立边链路的连接请求；
边链路建立单元1207，建立与所述远程用户设备之间的边链路。
值得注意的是，所述边链路信息传输装置1200并不需要包含全部的上述模块或单元，可以仅配置或使用其中的一个或多个单元或模块。可以根据实际场景确定具体的配置。
本发明实施例还提供一种用户设备，配置有上述的边链路信息传输装置1200。
图13是本发明实施例的用户设备的一示意图。如图13所示，该用户设备1300可以包括中央处理器100和存储器140；存储器140耦合到中央处理器100。值得注意的是，该图是示例性的；还可以使用其他类型的结构，来补充或代替该结构，以实现电信功能或其他功能。
在一个实施方式中，边链路信息传输装置1200的功能可以被集成到中央处理器100中。其中，中央处理器100可以被配置为进行如下控制：发送发现信息；所述发现信息至少包括所述用户设备的中继标识、中继移动状态信息以及边链路载波信息。
在另一个实施方式中，边链路信息传输装置1200可以与中央处理器100分开配置，例如可以将边链路信息传输装置1200配置为与中央处理器100连接的芯片，通过中央处理器的控制来实现边链路信息传输装置1200的功能。
如图13所示，该用户设备1300还可以包括：通信模块110、输入单元120、音频处理单元130、存储器140、照相机150、显示器160、电源170。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，用户设备1300也并不是必须要包括图13中所示的所有部件，上述部件并不是必需的；此外，用户设备1300还可以包括图13中没有示出的部件，可以参考现有技术。
由上述实施例可知，通过发现信息至少包括中继用户设备的中继标识、中继移动状态信息以及边链路载波信息，远程用户设备可以进行中继发现，实现小区覆盖范围的扩大。
实施例5
本发明实施例提供一种边链路信息传输装置，配置于远程用户设备中。本发明实施例对应于实施例2中的边链路信息传输方法，相同的内容不再赘述。
图14是本发明实施例的边链路信息传输装置的一示意图，如图14所示，所述边链路信息传输装置1400包括：
发现信息接收单元1401，接收中继用户设备发送的发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息。
边链路测量单元1402，测量所述远程用户设备与所述中继用户设备之间边链路的信道质量。
如图14所示，所述边链路信息传输装置1400还可以包括：
参数接收单元1403，接收基站广播的使得所述远程用户设备开始检测发现信息和进行边链路测量的第二条件信息，和/或，使得所述远程用户设备上报边链路测量结果的第三条件信息。
其中，所述第二条件信息可以包括：主服务小区的信道质量的第一阈值；或者，主服务小区的信道质量的第二阈值以及邻小区的信道质量的第三阈值；所述第三条件信息可以包括：主服务小区的信道质量的第四阈值以及邻小区的信道质量的第五阈值。
在本实施例中，所述发现信息接收单元1401还可以用于：在所述远程用户设备的主服务小区的信道质量小于或等于所述第一阈值的情况下，或者，在所述远程用户设备的主服务小区的信道质量小于或等于所述第二阈值且所有邻小区的信道质量均 小于或等于所述第三阈值的情况下，开始接收所述中继用户设备发送的发现信息。
如图14所示，所述边链路信息传输装置1400还可以包括：
测量结果上报单元1404，在所述远程用户设备的主服务小区的信道质量小于或等于所述第四阈值且所有邻小区的信道质量均小于或等于所述第五阈值的情况下，向基站上报所述远程用户设备与所述中继用户设备之间边链路的信道质量的测量结果以及所述中继用户设备的中继标识。
在一个实施方式中，所述测量结果上报单元1404还可以用于上报如下信息的其中之一或任意组合：所述中继用户设备的中继移动状态信息、负载水平信息以及边链路载波信息。
在一个实施方式中，所述测量结果上报单元1404上报的所述测量结果中，所述信道质量的值大于或等于第六阈值，和/或，所述测量结果的个数小于或等于第七阈值。
如图14所示，所述边链路信息传输装置1400还可以包括：
中继信息接收单元1405，接收所述基站为所述远程用户设备选择的中继用户设备的信息；
连接请求发送单元1406，向被选择的中继用户设备发送建立边链路的连接请求。
值得注意的是，所述边链路信息传输装置1400并不需要包含全部的上述模块或单元，可以仅配置或使用其中的一个或多个单元或模块。可以根据实际场景确定具体的配置。
本发明实施例还提供一种用户设备，配置有上述的边链路信息传输装置1400。其中，该用户设备的构成可以如图13所示。
由上述实施例可知，通过发现信息至少包括中继用户设备的中继标识、中继移动状态信息以及边链路载波信息，远程用户设备可以进行中继发现，实现小区覆盖范围的扩大。
实施例6
本发明实施例提供一种边链路信息传输装置，配置于基站中。本发明实施例对应于实施例3中的边链路信息传输方法，相同的内容不再赘述。
图15是本发明实施例的边链路信息传输装置的一示意图，如图15所示，所述边 链路信息传输装置1500包括：
参数发送单元1501，广播如下信息的其中之一或任意组合：使得具有中继能力的用户设备成为中继用户设备的第一条件信息，使得远程用户设备开始检测发现信息和进行边链路测量的第二条件信息，使得远程用户设备上报边链路测量结果的第三条件信息。
如图15所示，所述边链路信息传输装置1500还可以包括：
中继请求接收单元1502，接收用户设备发送的成为中继用户设备的中继请求；其中所述中继请求至少包括所述用户设备的中继标识、中继移动状态信息以及边链路载波信息；
中继请求反馈单元1503，向所述用户设备发送成为中继用户设备的确认消息。
如图15所示，所述边链路信息传输装置1500还可以包括：
测量结果接收单元1504，接收远程用户设备上报的所述远程用户设备与中继用户设备之间边链路的信道质量的测量结果以及所述中继用户设备的中继标识。
如图15所示，所述边链路信息传输装置1500还可以包括：
中继选择单元1505，为所述远程用户设备选择中继用户设备；
中继信息发送单元1506，向远程用户设备发送被选择的中继用户设备的信息。
值得注意的是，所述边链路信息传输装置1500并不需要包含全部的上述模块或单元，可以仅配置或使用其中的一个或多个单元或模块。可以根据实际场景确定具体的配置。
本发明实施例还提供一种基站，该基站配置有上述的边链路信息传输装置1500。
图16是本发明实施例的基站的一构成示意图。如图16所示，基站1600可以包括：中央处理器(CPU)200和存储器210；存储器210耦合到中央处理器200。其中该存储器210可存储各种数据；此外还存储信息处理的程序，并且在中央处理器200的控制下执行该程序。
其中，基站1600可以实现如实施例3所述的边链路信息传输方法。中央处理器200可以被配置为实现边链路信息传输装置1500的功能；即中央处理器200可以被配置为进行如下控制：广播如下信息的其中之一或任意组合：使得具有中继能力的用户设备成为中继用户设备的第一条件信息，使得远程用户设备开始检测发现信息的第二条件信息，使得远程用户设备上报边链路测量结果的第三条件信息。
此外，如图16所示，基站1600还可以包括：收发机220和天线230等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，基站1600也并不是必须要包括图16中所示的所有部件；此外，基站1600还可以包括图16中没有示出的部件，可以参考现有技术。
由上述实施例可知，通过发现信息至少包括中继用户设备的中继标识、中继移动状态信息以及边链路载波信息，远程用户设备可以进行中继发现，实现小区覆盖范围的扩大。
此外，基站广播第一条件信息，可以使得具有中继能力的用户设备在满足第一条件时成为中继用户设备；基站广播第二条件信息，可以使得远程用户设备在满足第二条件时开始检测发现信息和进行边链路测量；基站广播第三条件信息，可以使得远程用户设备在满足第三条件时上报边链路测量结果。
实施例7
本发明实施例还提供一种通信系统，与实施例1至6相同的内容不再赘述。图17是本发明实施例的通信系统的一示意图，如图17所示，所述通信系统1700包括：中继用户设备1701和远程用户设备1702。
其中，中继用户设备1701发送发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息；远程用户设备1702接收所述中继用户设备1701发送的所述发现信息。
如图17所示，所述通信系统1700还可以包括：
基站1703，广播如下信息的其中之一或任意组合：使得具有中继能力的用户设备成为所述中继用户设备的第一条件信息，使得所述远程用户设备开始检测发现信息和进行边链路测量的第二条件信息，使得所述远程用户设备上报边链路测量结果的第三条件信息。
本发明实施例提供一种计算机可读程序，其中当在用户设备中执行所述程序时，所述程序使得计算机在所述用户设备中执行如实施例1或2所述的边链路信息传输方法。
本发明实施例提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在用户设备中执行如实施例1或2所述的边链路信息传输方法。
本发明实施例提供一种计算机可读程序，其中当在基站中执行所述程序时，所述程序使得计算机在所述基站中执行如实施例3所述的边链路信息传输方法。
本发明实施例提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在基站中执行如实施例3所述的边链路信息传输方法。
本发明以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本发明涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。本发明还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本发明进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本发明保护范围的限制。本领域技术人员可以根据本发明的精神和原理对本发明做出各种变型和修改，这些变型和修改也在本发明的范围内。

Claims (19)

  1. 一种边链路信息传输装置，配置于中继用户设备中，所述边链路信息传输装置包括：
    发现信息发送单元，发送发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息。
  2. 根据权利要求1所述的边链路信息传输装置，其中，所述边链路信息传输装置还包括：
    中继参数接收单元，接收基站广播的使得具有中继能力的用户设备成为所述中继用户设备的第一条件信息；其中，所述第一条件信息至少包括：空口信道质量的上界值和下界值，和/或，移动状态条件信息。
  3. 根据权利要求2所述的边链路信息传输装置，其中，所述边链路信息传输装置还包括：
    中继确定单元，在所述用户设备的空口信道质量小于或等于所述上界值且大于或等于所述下界值的情况下，和/或，在所述用户设备的移动状态符合所述移动状态条件信息的情况下，确定所述用户设备成为所述中继用户设备。
  4. 根据权利要求1所述的边链路信息传输装置，其中，所述边链路信息传输装置还包括：
    中继请求发送单元，向基站发送成为所述中继用户设备的中继请求；其中所述中继请求至少包括所述中继标识、中继移动状态信息以及所述边链路载波信息；
    中继请求确认单元，接收所述基站发送的成为中继用户设备的确认消息。
  5. 根据权利要求1所述的边链路信息传输装置，其中，所述边链路信息传输装置还包括：
    连接请求接收单元，接收远程用户设备发送的用于建立边链路的连接请求；
    边链路建立单元，建立与所述远程用户设备之间的边链路。
  6. 一种边链路信息传输装置，配置于远程用户设备中，所述边链路信息传输装置包括：
    发现信息接收单元，接收中继用户设备发送的发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息；
    边链路测量单元，测量所述远程用户设备与所述中继用户设备之间边链路的信道质量。
  7. 根据权利要求6所述的边链路信息传输装置，其中，所述边链路信息传输装置还包括：
    参数接收单元，接收基站广播的使得所述远程用户设备开始检测发现信息和进行边链路测量的第二条件信息，和/或，使得所述远程用户设备上报边链路测量结果的第三条件信息。
  8. 根据权利要求7所述的边链路信息传输装置，其中，所述第二条件信息包括：主服务小区的信道质量的第一阈值；或者，主服务小区的信道质量的第二阈值以及邻小区的信道质量的第三阈值；
    所述第三条件信息包括：主服务小区的信道质量的第四阈值以及邻小区的信道质量的第五阈值。
  9. 根据权利要求8所述的边链路信息传输装置，其中，在所述远程用户设备的主服务小区的信道质量小于或等于所述第一阈值的情况下，或者，在所述远程用户设备的主服务小区的信道质量小于或等于所述第二阈值且所有邻小区的信道质量均小于或等于所述第三阈值的情况下，所述发现信息接收单元开始接收所述中继用户设备发送的发现信息以及所述边链路测量单元进行边链路测量。
  10. 根据权利要求8所述的边链路信息传输装置，其中，所述边链路信息传输装置还包括：
    测量结果上报单元，在所述远程用户设备的主服务小区的信道质量小于或等于所述第四阈值且所有邻小区的信道质量均小于或等于所述第五阈值的情况下，向基站上报所述远程用户设备与所述中继用户设备之间边链路的信道质量的测量结果以及所述中继用户设备的中继标识。
  11. 根据权利要求10所述的边链路信息传输装置，其中，所述测量结果上报单元还用于上报如下信息的其中之一或任意组合：所述中继用户设备的中继移动状态信息、负载水平信息以及边链路载波信息。
  12. 根据权利要求10所述的边链路信息传输装置，其中，所述测量结果上报单元上报的所述测量结果中，所述信道质量的值大于或等于第六阈值，和/或，所述测量结果的个数小于或等于第七阈值。
  13. 根据权利要求10所述的边链路信息传输装置，其中，所述边链路信息传输装置还包括：
    中继信息接收单元，接收所述基站为所述远程用户设备选择的中继用户设备的信息；
    连接请求发送单元，向被选择的所述中继用户设备发送建立边链路的连接请求。
  14. 一种边链路信息传输装置，配置于基站，所述边链路信息传输装置包括：
    参数发送单元，广播如下信息的其中之一或任意组合：使得具有中继能力的用户设备成为中继用户设备的第一条件信息，使得远程用户设备开始检测发现信息并进行边链路测量的第二条件信息，使得远程用户设备上报边链路测量结果的第三条件信息。
  15. 根据权利要求14所述的边链路信息传输装置，其中，所述边链路信息传输装置还包括：
    中继请求接收单元，接收用户设备发送的成为中继用户设备的中继请求；其中所述中继请求至少包括所述用户设备的中继标识、中继移动状态信息以及边链路载波信息；
    中继请求反馈单元，向所述用户设备发送成为中继用户设备的确认消息。
  16. 根据权利要求14所述的边链路信息传输装置，其中，所述边链路信息传输装置还包括：
    测量结果接收单元，接收远程用户设备上报的所述远程用户设备与中继用户设备之间边链路的信道质量的测量结果以及所述中继用户设备的中继标识。
  17. 根据权利要求16所述的边链路信息传输装置，其中，所述边链路信息传输装置还包括：
    中继选择单元，为所述远程用户设备选择中继用户设备；
    中继信息发送单元，向所述远程用户设备发送被选择的中继用户设备的信息。
  18. 一种通信系统，所述通信系统包括：
    中继用户设备，发送发现信息；所述发现信息至少包括所述中继用户设备的中继标识、中继移动状态信息以及边链路载波信息；
    远程用户设备，接收所述中继用户设备发送的所述发现信息。
  19. 根据权利要求18所述的通信系统，其中，所述通信系统还包括：
    基站，广播如下信息的其中之一或任意组合：使得具有中继能力的用户设备成为所述中继用户设备的第一条件信息，使得所述远程用户设备开始检测发现信息并进行边链路测量的第二条件信息，使得所述远程用户设备上报边链路测量结果的第三条件信息。
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