CN108307472A - The communication means and device of equipment direct communication system, communication system - Google Patents

The communication means and device of equipment direct communication system, communication system Download PDF

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Publication number
CN108307472A
CN108307472A CN201610668261.XA CN201610668261A CN108307472A CN 108307472 A CN108307472 A CN 108307472A CN 201610668261 A CN201610668261 A CN 201610668261A CN 108307472 A CN108307472 A CN 108307472A
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China
Prior art keywords
relaying
forwarding
distal end
base station
carryings
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Granted
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CN201610668261.XA
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Chinese (zh)
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CN108307472B (en
Inventor
汪梦珍
陈琳
陈玉芹
黄莹
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ZTE Corp
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ZTE Corp
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Priority to CN201610668261.XA priority Critical patent/CN108307472B/en
Priority to PCT/CN2017/097210 priority patent/WO2018028694A1/en
Publication of CN108307472A publication Critical patent/CN108307472A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/20—Communication route or path selection, e.g. power-based or shortest path routing based on geographic position or location
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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

Abstract

The present invention provides a kind of communication means of equipment direct communication system and device, communication systems, wherein this method includes：UE receives PC5 interface configuration informations, wherein the PC5 interface configuration informations are for configuring UE holding equipments to equipment D2D communication functions；The UE is configured according to the PC5 interface configuration informations.

Description

The communication means and device of equipment direct communication system, communication system
Technical field
The present invention relates to the communications field, the communication means in particular to a kind of equipment direct communication system and device, communication System.
Background technology
With the development of wireless multimedia service, demand of the people to high data rate and user experience is growing, from And high requirement is proposed to the power system capacity and covering of conventional cellular network.Another aspect public safety, social networks, low coverage Make people are right to desorb nearly persons or things and communicate (Proximity from application scenarios such as data sharing, local advertisings Services, adjacent service) demand gradually increase.Traditional cellular network centered on base station in high data rate and There are apparent limitations in terms of the support of adjacent service, under this requirement background, represent the new side of future communication technologies development To D2D (Device-to-Device, device-to-device) technology come into being.The application of D2D technologies can mitigate Cellular Networks The burden of network the battery power consumption for reducing user equipment, improves data rate, and improves the robustness of network infrastructure, very well Ground meets the requirement of above-mentioned high data rate traffic and adjacent service.D2D technologies are also referred to as adjacent service at present (Proximity Services, ProSe), unilateral link (Sidelink, SL).
D2D technologies can be operated in authorized spectrum band or unauthorized frequency range, allow multiple user equipmenies for supporting D2D functions (i.e. D2D user equipmenies, D2D User Equipment, D2D UE) is having network infrastructure or without the feelings of network infrastructure Directly discovery/direct communication is carried out under condition.Interface between D2D UE is known as PC5 interfaces.D2D technologies generally include D2D discoveries Technology and the D2D communication technologys, wherein D2D discovery techniques refer to for judging/determining between two or more D2D user equipmenies Mutually adjacent (for example, within the scope of can carry out D2D direct communications).In general, can be by sending or connecing between D2D user equipmenies Existing signal/information is received and dispatched to find other side.The D2D communication technologys refer to that partly or entirely communication data can between D2D user equipmenies With the technology not communicated directly by network infrastructure.
On the other hand, with the development of all things on earth demand for interconnection, 3GPP is to machine type communication (MTC, Machine Type Communication it) is standardized, the eMTC work of R12 and R13 have been completed substantially, NB-IoT (Narrow Band- Internet of Things) standardization effort still carrying out at present.Wherein R13eMTC support low cost on the basis of, Increase the support of coverage enhancement and the support of Bandwidth-Constrained.In general, the transceiving radio frequency energy of eMTC user equipmenies (UE) Power limit is in 1.4MHz, and the radio-frequency receiving-transmitting bandwidth of NB-IoT equipment is limited in 180kHz.Between eNB and eMTC/NB-IoT UE Coverage enhancement is usually achieved the purpose that by the multiplicating of data transmission.In view of eMTC/NB-IoT devices with low cost characteristics, It is generally desirable to the service lifes of extend as far as possible eMTC/NB-IoT equipment, and coverage enhancement is specific can lead to the multiple of data packet It repeats to transmit, to quickly expend the electricity of UE.It is wearable in addition to eMTC equipment and NB-IoT equipment (Wearables) equipment also has similar application demand, such as low cost, low power consumption/economize on electricity, High Data Rate etc..
A kind of possible solution is to support wearable/eMTC/NB-IoT equipment (abbreviation remote UE or distal end UE) Be linked into network by way of D2D communications, i.e. distal end UE may be coupled to relay node that UE serves as (referred to as relaying UE or Relay UE), it is communicated in a manner of D2D between relaying UE, and by relaying UE and network communication.Between distal end UE and relaying UE D2D communication include but not limited to sidelink/PC5 communications, WLAN, BlueTooth.For by sidelink/PC5 or How the distal end UE of non-3GPP (WLAN, BlueTooth) access relayings UE, support the carrying of relaying UE forwarding distal end UE data The problem of configuration and management, the prior art not yet provides the solution of system perfecting.
Invention content
An embodiment of the present invention provides a kind of communication means of equipment direct communication system and device, communication systems, at least to solve The problem of certainly there is no the solution of carrying configuration and the management of supporting relaying UE forwarding distal end UE data in the related technology.
According to one embodiment of present invention, a kind of communication means of equipment direct communication system is provided, including：User equipment (UE) PC5 interface configuration informations are received, wherein the PC5 interface configuration informations are communicated for configuring UE holding equipments to equipment D2D Function；The UE is configured according to the PC5 interface configuration informations.
Another aspect according to the ... of the embodiment of the present invention provides a kind of communication means of equipment direct communication system relaying, packet It includes：Base station sends PC5 interface configuration informations to user equipment (UE), wherein the PC5 interface configuration informations are set for configuring UE supports It is standby to arrive equipment D2D communication functions.
One side according to the ... of the embodiment of the present invention provides a kind of communication means of equipment direct communication system, including：Distally UE access and/or be connected to relaying UE；The distal end UE forwards data by the relaying UE.
One side according to the ... of the embodiment of the present invention provides a kind of communication means of equipment direct communication system relaying, including： Base station receive relaying relevant configuration information, wherein the relaying relevant configuration information for distal end UE find, measure, select and Access relaying UE；The base station executes place corresponding with the relaying relevant configuration information according to the relaying relevant configuration information Reason.
Another aspect according to the ... of the embodiment of the present invention provides a kind of communication device of equipment direct communication system, is applied to User equipment (UE), described device include：Receiving module, for receiving PC5 interface configuration informations, wherein the PC5 interfaces match confidence Breath is for configuring UE holding equipments to equipment D2D communication functions；Configuration module, for according to the PC5 interface configuration informations into Row configuration.
Another aspect according to the ... of the embodiment of the present invention provides a kind of communication device of equipment direct communication system, is applied to Remote user equipment UE, described device include：AM access module, for accessing and/or being connected to relaying UE；Forwarding module is used for Data are forwarded by the relaying UE.
Another aspect according to the ... of the embodiment of the present invention provides a kind of communication system, including：User equipment (UE) and base It stands, the user equipment, the PC5 interface configuration informations sent for receiving the base station, and configured according to the PC5 interfaces Information is configured, wherein the PC5 interface configuration informations are for configuring UE holding equipments to equipment D2D communication functions.
Another aspect according to the ... of the embodiment of the present invention provides a kind of communication system, including：Remote user equipment UE and Relay UE, wherein the distal end UE forwards data for accessing and/or being connected to relaying UE, and by the relaying UE.
According to still another embodiment of the invention, a kind of storage medium is additionally provided.The storage medium is set as storage and uses In the program code for executing following steps：User equipment (UE) receives PC5 interface configuration informations, wherein the PC5 interfaces match confidence Breath is for configuring UE holding equipments to equipment D2D communication functions；The UE is configured according to the PC5 interface configuration informations.
According to still another embodiment of the invention, a kind of storage medium is additionally provided.The storage medium is set as storage and uses In the program code for executing following steps：Base station receives relaying relevant configuration information, wherein the relaying relevant configuration information is used It finds, measure in distal end UE, selection and access relay UE；The base station according to the relaying relevant configuration information execute with it is described Relay the corresponding processing of relevant configuration information.
According to still another embodiment of the invention, another storage medium is additionally provided.The storage medium is set as storing Program code for executing following steps：Base station sends PC5 interface configuration informations to user equipment (UE), wherein the PC5 interfaces Configuration information is for configuring UE holding equipments to equipment D2D communication functions.
Through the invention, relaying relevant configuration can be received since UE can receive PC5 interface configuration informations or base station Therefore information can support the carrying configuration and management of relaying UE forwarding w-UE data, therefore, can solve in the related technology The problem of there is no the solution of carrying configuration and the management of supporting relaying UE forwarding distal end UE data.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is wearable device according to the ... of the embodiment of the present invention by relaying UE access to network communications scenarios schematic diagram；
Fig. 2 is the flow chart of the communication means of equipment direct communication system according to the ... of the embodiment of the present invention；
Fig. 3 is the structure diagram of the communication device of equipment direct communication system according to the ... of the embodiment of the present invention；
Fig. 4 is the flow chart of another communication means of equipment direct communication system according to the ... of the embodiment of the present invention；
Fig. 5 is the structure diagram of another communication device of equipment direct communication system according to the ... of the embodiment of the present invention；
Fig. 6 is the flow chart of another communication means of equipment direct communication system according to the ... of the embodiment of the present invention；
Fig. 7 is the flow chart of another communication means of equipment direct communication system according to the ... of the embodiment of the present invention；
Fig. 8 is 1 relay forwarding of present example carrying foundation and communication flow diagram；
Fig. 9 is 2 relay forwarding of present example carrying foundation and communication flow diagram；
Figure 10 is 3 relay forwarding of present example carrying foundation and communication flow diagram；
Figure 11 is another relay forwarding carrying foundation of present example 3 and communication flow diagram；
Figure 12 is 4 relay forwarding of present example carrying foundation and communication flow diagram；
Figure 13 is present example 6PC5 bearing modification flow charts；
Figure 14 is present example 6PC5 carrying release flow charts；
Figure 15 is that present example 7UE realizes that PC5 carryings carry out the flow chart of relay forwarding；
Figure 16 is the relay forwarding flow chart that present example 8 is accessed by WLAN；
Figure 17 is another relay forwarding flow chart accessed by WLAN of present example 9；
Figure 18 is the flow chart of present example 10S1 interactive interfacings relaying relevant information；
Figure 19 is the flow chart of present example 11X2 interactive interfacings relaying relevant information.
Specific implementation mode
Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, " Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.
What there is in the related technology and support that relaying UE forwardings distal end UE (includes but not limited to, wearable/eMTC/NB-IoT Equipment (w-UE)) data carrying configuration and problem of management.The method proposed through the invention, w-UE are communicated with relaying UE foundation Connection, and negotiation configuration and the Uu carrying configurations of the PC5 carryings of relaying UE forwarding w-UE data are carried out, to ensure that w-UE is logical It crosses relaying UE and is smoothed out with network and communicated.
In view of the above-mentioned problems, a kind of possible solution is to support wearable/eMTC/NB-IoT equipment (abbreviation w-UE Or remote UE or distal end UE) D2D communication by way of be linked into network, i.e., as shown in Figure 1, w-UE may be coupled to UE The relay node (abbreviation relay UE or r-UE) served as, is communicated between r-UE in a manner of D2D, r-UE is responsible for w- The data of UE forward a packet to network or from forwarded to w-UE.In addition, according to R14feD2D demands, w-UE can also be by non- 3GPP (non-3GPP) mode (such as WLAN, BlueTooth) is linked into relay node, leads to network to reach to spread over Letter.In this way, w-UE can make full use of D2D/WLAN/BT communication economize on electricitys, and have rate high, spread over and wait spies Property.
It should be noted that the UE referred in the embodiment of the present application includes but not limited to wearable UE, and MTC, IoT equipment Deng.
Fig. 2 is the flow chart of the communication means of equipment direct communication system according to the ... of the embodiment of the present invention.As shown in Fig. 2, the party Method includes：
Step S202, UE receive PC5 interface configuration informations, wherein the PC5 interface configuration informations are set for configuring UE supports It is standby to arrive equipment D2D communication functions；
Optionally, above-mentioned PC5 interface configuration informations include at least one of：PC5 carries configuration information, PC5 logics letter Map information, PC5 packet priorities and Uu between road configuration information, Uu priority of logical channels and PC5 logic channels are held Map information, the relay forwarding of the service quality rating mark QCI of load indicates information.
Step S204, UE are configured according to above-mentioned PC5 interface configuration informations.
Optionally, above-mentioned UE includes：Distal end UE and/or relaying UE；Above-mentioned UE receives PC5 interface configuration informations：On It states distal end UE and receives the PC5 carrying configuration informations that base station is sent；And/or the PC5 carryings that base station is sent are received after UE among the above and matched Confidence ceases；And/or said distal ends UE or among the above after UE receive base station send relay forwarding indicate information；And/or it is above-mentioned remote Map information or PC5 data packets between holding UE to receive the PC5 logic channels group and Uu priority of logical channels that base station is sent is excellent The map information of first grade and Uu carryings QCI；And/or the PC5 logics letter for the said distal ends UE that base station is sent is received after UE among the above Map information between road group and Uu priority of logical channels.
Wherein, above-mentioned PC5 carryings configuration information includes following one or arbitrary combination：Configuration information is established in PC5 carryings； PC5 bearing modification configuration informations；PC5 carrying release information.
Wherein, it includes at least one of that configuration information is established in above-mentioned PC5 carryings：PC5 load identifications, wireless spread-spectrum technology Protocol validation pattern RLC AM configuration informations, radio link control Unacknowledged Mode RLC UM configuration informations, logic channel Identify LC ID, logic channel group mark LCG ID, preferential ensures bit rate PBR, bucket size duration BSD, UE PC5 interfaces Aggregate Maximum Bit Rate, PC5 carry QoS information.Wherein, above-mentioned PC5 carryings QoS information includes at least one of：Service Credit rating QCI ensures bit rate GBR, maximum bit rate MBR.
Optionally, above-mentioned RLC AM configuration informations include at least one of：RLC AM mode sequences length, poll weight Biography timer (t-PollRetransmit), polling protocol data cell (pollPDU), poll byte number (pollByte), most Big retransmission threshold value (maxRetxThreshold) (also known as maximum retransmission), the timer that reorders (t-Reordering), Status Disable timer (t-StatusProhibit)；RLC UM pattern configurations information includes following arbitrary combination：Non-acknowledgement mould Formula serial number field grows (sn-FieldLength), and maximum retransmission threshold value (maxRetxThreshold), reorder timer (t- Reordering)。
Optionally, PC5 load identifications, Logic Channel Identifier and logic channel in configuration information are established in above-mentioned PC5 carryings Group mark, the EPS carryings or Uu carrying configurations of users multiplexing equipment UE.
Optionally, above-mentioned PC5 bearing modifications configuration information is used to update or re-match PC5 carryings and establishes appointing in configuration information Meaning field combination；Above-mentioned PC5 carryings release information includes at least one of：The PC5 load identifications discharged or logic is needed to believe Road identifies, release cause.
Optionally, the relay forwarding instruction information that said distal ends UE is received includes at least one of：It relays UE and identifies (example It can such as be indicated with ProSe layer-2 ID)；Control plane forwarding instruction；User plane forwarding instruction；Forwarded upstream indicates；Downlink Forwarding instruction；The EPS load identifications of relay forwarding；The DRB of relay forwarding is identified；The Logic Channel Identifier of relay forwarding；Each EPS carries corresponding upstream data forwarding instruction, each EPS carries corresponding downlink data forwarding instruction, each EPS carryings pair The uplink and downlink data forwarding instruction answered；
Indicate that information includes at least one of after the relay forwarding that UE is received among the above：Distal end UE is identified, distal end UE's Control plane forwarding instruction, the user plane forwarding instruction of distal end UE, the forwarded upstream instruction of distal end UE, distal end UE's down forwards finger Show, the EPS of the distal end UE of relay forwarding carry corresponding upstream data forwarding instruction, downlink data forwarding instruction, uplink and under The instruction of row data forwarding, the EPS carrying informations of the distal end UE of relay forwarding；Wherein, the EPS carrying informations include it is following at least it One：EPS load identifications, QCI, GBR, MBR.
Optionally, above-mentioned UE is configured according to above-mentioned PC5 interface configuration informations, including：Said distal ends UE among the above It establishes or changes after UE or release PC5 is carried；
Optionally, said distal ends UE among the above after UE establish PC5 carrying include：Said distal ends UE sends PC5 carryings and builds Vertical configuration information gives relaying UE；Said distal ends UE receives the PC5 carrying foundation that relaying is sent and completes information；And/or among the above after UE transmission PC5 carryings establish configuration information and give said distal ends UE；The PC5 carryings that said distal ends UE is sent are received after UE among the above to build It is vertical to complete information.Optionally, configuration information is established in the PC5 carryings and PC5 carryings establish completion information and can be disappeared by following Breath carrying：PC5NAS signaling messages or PC5AS signaling messages.
Optionally, after said distal ends UE transmissions PC5 carryings establish configuration information to relaying UE, the above method further includes： The PC5 carryings that said distal ends UE is sent are received after UE establish configuration information among the above；And/or among the above after UE to said distal ends UE Carry out admission control；And/or relaying UE judges whether to establish forwarding Uu carryings, wherein forwarding Uu carryings turn for relaying UE Distal end UE data are sent out to base station.
Optionally, admission control is carried out to said distal ends UE after UE among the above, including：Among the above after UE according to receiving The PC5 carryings that said distal ends UE is sent establish the carrying QoS informations of the PC5 in configuration information and among the above after the established PC5 of UE Carry quantity, resource load condition, it is determined whether receive and establish new PC5 carryings；Or said distal ends UE is marked after UE among the above Knowledge is sent to base station, and above-mentioned base station determines whether that establishing PC5 after UE receivings among the above holds according to scheduling of resource/distribution condition It carries.
Optionally, judge whether to establish forwarding Uu carryings after UE among the above, including：The relaying UE is according to the distal end UE The EPS carrying list letters that the PC5 carrying QoS informations and the relaying UE that the PC5 carryings of transmission are established in configuration information are safeguarded Breath, it is determined whether have the forwarding Uu carryings met the requirements, if it is not, the relaying UE is asked to network originated traffic, held Resource allocation request or bearing resource modification request are carried, the forwarding Uu carryings are established or change.
Optionally, above-mentioned service request, bearing resource distribution request or the bearing resource initiated among the above to network after UE Forwarding carrying instruction is carried in modification request message, forwarding carrying instruction to network for indicating that the carrying is remote for forwarding Hold UE data.
Optionally, among the above after UE receives the relay forwarding instruction information that base station is sent, the relaying UE judgements are No foundation forwarding Uu carryings, forwarding Uu carryings forward distal end UE data to base station for relaying UE；During the relaying UE is sent After transmitted response information to base station.
The relay forwarding response message includes：Relay forwarding receives information or relay forwarding refusal information, wherein described Relay forwarding receives information：Distal end UE's allows the EPS that EPS lists and refusal by relay forwarding pass through relay forwarding List.
Optionally, the relaying UE receives the PC5 carrying configuration informations of base station transmission or the relaying UE sends relaying and turns After response message is sent out to base station, the method further includes：The relaying UE receives the foundation configuration that forwarding Uu is carried from base station Information；The configuration information of establishing of forwarding Uu carryings includes at least one of：Uu DRB marks, Packet Data Convergence Protocol PDCP is configured, RLC configurations, Logic Channel Identifier, logic channel configuration.
Optionally, among the above after UE receives the relay forwarding instruction information that base station is sent, including：Among the above after UE to Above-mentioned base station sends the EPS carrying lists for allowing the EPS by relay forwarding to carry list and refusal by relay forwarding.
Optionally, before said distal ends UE receives the relay forwarding instruction information that base station is sent, the distal end UE passes through RRC Proprietary signaling to base station send relay forwarding interest indication information, wherein relay forwarding interest indication information include it is following at least One of：Relay forwarding interest, control plane forwarding instruction, user plane forwarding instruction, forwarded upstream instruction down forward instruction, phase It hopes and list is carried by the EPS of relay forwarding.Wherein, distal end UE is in attach request Attach request or service request Service request send the instruction of relay forwarding interest by the proprietary signalings of RRC to eNB.
Optionally, above-mentioned UE is configured according to above-mentioned PC5 interface configuration informations, including at least one of：Distal end UE Or relaying UE is carried according to the PC5 received and is established configuration information, completes PC5 carrying configurations, and send RRC and re-match completion message It informs that PC5 carryings are established to base station to complete；Said distal ends UE or relaying UE according to the PC5 bearing modification configuration informations received, PC5 bearing modifications are completed, and sends RRC re-matchings completion message and informs that PC5 bearing modifications are completed to base station；Said distal ends UE or in After UE according to the PC5 carrying release information received, PC5 carrying releases are completed；Said distal ends UE turns according to the relaying received Bristle with anger and show the map information of information and PC5 packet priorities PPPP and Uu carryings QCI, it would be desirable to by relaying UE forwardings The data of EPS carryings are associated with corresponding PPPP according to the QCI that EPS is carried, and transmit above-mentioned data by PC5 interfaces；It is above-mentioned remote End UE carries the map information of QCI according to the PPPP and Uu of the relay forwarding instruction information and pre-configuration that receive, it would be desirable to logical The corresponding PPPP of data correlation of the EPS carryings of relaying UE forwardings is crossed, and above-mentioned data are transmitted by PC5 interfaces；Said distal ends UE believes according to the mapping between the relay forwarding instruction information received and PC5 logic channels group and Uu priority of logical channels Breath, it would be desirable to by relaying the corresponding PPPP of data correlation of the EPS carryings of UE forwardings, and above-mentioned number be transmitted by PC5 interfaces According to；Said distal ends UE establishes PC5 load identifications or PC5 Logic Channel Identifiers in configuration information according to the PC5 carryings received Or the PC5 load identifications or PC5 Logic Channel Identifiers and the corresponding EPS EPS load identifications carried or Uu of distal end UE oneself generations DRB is identified or the one-to-one relationship of Uu Logic Channel Identifiers, it would be desirable to which the data by relaying the EPS carryings of UE forwardings map To corresponding PC5 carryings/PC5 logical channel transmissions.
The present embodiment also provides a kind of communication device of equipment direct communication system, is applied to UE, as shown in figure 3, above-mentioned apparatus Including：
Receiving module 30, for receiving PC5 interface configuration informations, wherein the PC5 interface configuration informations are for configuring UE branch Holding equipment is to equipment D2D communication functions；
Optionally, above-mentioned PC5 interface configuration informations include at least one of：
PC5 is carried between configuration information, PC5 logic channel configuration information of data radio bearer, Uu priority of logical channels and PC5 logic channels Map information, the service quality rating that carries of PC5 packet priorities and Uu identifies map information, the relay forwarding of QCI and refers to Show information.
Configuration module 32, for being configured according to above-mentioned PC5 interface configuration informations.
The embodiment of the present invention also provides the communication means of another equipment direct communication system, as shown in figure 4, this method includes Following processing step：
Step S402, distal end UE access and/or be connected to relaying UE；
Step S404, distal end UE after UE by forwarding data among the above.
Optionally, the relaying access way that said distal ends UE and relaying UE are supported includes at least one of：sidelink Or PC5 interfaces, WLAN, bluetooth BlueTooth；Said distal ends UE accesses/is connected to relaying by above-mentioned sidelink or PC5 UE；Or distal end UE accesses relaying UE by WLAN；Or distal end UE accesses relaying UE by BlueTooth.
Optionally, it distal end UE access and/or is connected to before relaying UE, said distal ends UE receives the relaying phase that base station is sent Configuration information is closed, among the above after relevant configuration information for distal end UE discoveries, measurement, selection and access relaying UE；Said distal ends UE is according among the above after relevant configuration information completion configuration.
Optionally, among the above after relevant configuration information include at least one of：Relaying measures thresholding, and relaying finds door Limit, relay selection thresholding, relay selection hysteresis, relaying find that transmission/reception resource, WLAN measure thresholding, and WLAN measurements are matched Confidence ceases, and WLAN selects thresholding, WLAN to select hysteresis, BlueTooth that thresholding, BlueTooth is selected to select hysteresis；
Optionally, before said distal ends UE receives the relaying relevant configuration information that base station is sent, the above method further includes：On It states distal end UE transmissions relay forwarding interest and is indicated to base station.
Optionally, above-mentioned relay forwarding interest instruction includes at least one of：Relay forwarding interest, desired relaying connect Enter mode, control plane forwarding instruction, user plane forwarding instruction, forwarded upstream indicates, down forwards instruction, is expected that by relaying and turns The EPS load identifications or DRB of hair identify or Logic Channel Identifier, and each EPS carries corresponding upstream data forwarding instruction, downlink Data forwarding instruction, the instruction of uplink and downlink data forwarding.
Optionally, before said distal ends UE receives the relaying relevant configuration information that base station is sent, the above method further includes：Base The relaying support instruction information for receiving relaying r-UE transmissions of standing or relaying support fresh information, wherein among the above after support update Information is used to update/modification/and re-matches the arbitrary fields for relaying and supporting in instruction information.
Optionally, indicate that information includes at least one of after support among the above：UE marks are relayed, relaying supports instruction, The relaying access way of support, WLAN information, BlueTooth information；
Optionally, above-mentioned WLAN information includes：WLAN terminal WT marks, WLAN marks, basic service set identification BSSID, WLAN action types, WLAN country codes, maximum capacity, WLAN bandwidth informations, service set SSID, homogeneity extended service set HESSID。
Optionally, said distal ends UE according among the above after relevant configuration information complete configuration include：Said distal ends UE is executed Relaying measures or relaying is found or WLAN is measured, and to base station report measurement results；Or
Said distal ends UE executes relaying measurement or relaying is found or WLAN is measured, according to relaying measurement result or relay selection Thresholding or relay selection hysteresis or WLAN measurement results or WLAN selection thresholdings or WLAN selection hysteresis or BlueTooth choosings Select thresholding or BlueTooth selection hysteresis, selection relaying UE or WLAN or BlueTooth, with by sidelink/PC5 or WLAN or BT access relayings UE.
Optionally, for said distal ends UE to after the report measurement results of base station, above-mentioned base station is said distal ends UE selection relayings UE, and tell selected relaying UE to distal end UE by the proprietary signalings of RRC.It is described will be selected by the proprietary signalings of RRC Relaying UE notifies that distal end UE includes：The ProSe layers 2 for relaying UE identify ProSe layer2ID, or the C-RNTI marks of relaying UE, Or the WLAN MAC Address of relaying UE.
Optionally, said distal ends UE access and/or be connected to relaying UE after, including：Said distal ends UE or relaying UE to Base station sends relay connection state report；Report to include at least one of after connection status among the above：Said distal ends UE's WLAN MAC Address, the ProSe UE ID of said distal ends UE relay access way, even among the above after the ProSe UE ID of UE It is connected into work(, connection failure, failure cause；
Optionally, the relay connection state report can be sent by least one of： SidelinkUEInformation, WLAN connection status report that WLAN is associated with confirmation message, the proprietary signalings of RRC.
Optionally, said distal ends UE by among the above after UE forward data before, including：Among the above base station hair is received after UE The relay forwarding solicited message sent；Relay forwarding response message is sent to above-mentioned base station after UE among the above.
Optionally, above-mentioned relay forwarding solicited message includes at least one of：The WLAN MAC Address of said distal ends UE, The ProSe UE ID of said distal ends, the E-RAB marks for being expected that by relay forwarding of said distal ends, qos parameter, eNB GTP tunnels Road destination node.
Optionally, among the above after transmitted response information include at least one of：Allow to mark by the E-RAB of relay forwarding Know list, the E-RAB identification lists that refusal passes through relay forwarding.
Optionally, among the above after UE receives the relay forwarding solicited message that base station is sent, the relaying UE is to relaying The E-RAB that relay forwarding is expected that by forwarding request carries out admission control, and the relaying UE is according to the carrying for relaying UE Situation, it is determined whether have the established forwarding Uu carryings for meeting QoS demand, and determine that the forwarding Uu for allowing receiving to establish is held It carries；If there is the forwarding Uu carryings that can receive foundation, the relaying UE initiations are established in corresponding EPS carryings or base station reception After the relay forwarding response message that UE is sent, base station sends the configuration information for establishing forwarding Uu carryings to the relaying UE.
Optionally, the forwarding Uu carrying configuration informations that base station is sent to the relaying UE include at least one of：Uu DRB is identified, pdcp configurations, rlc configurations, Logic Channel Identifier, logic channel configuration.
Optionally, said distal ends UE is by the way that before UE forwards data, the above method includes among the above：The distal end UE connects It receives the relay forwarding that base station is sent and indicates information, wherein the relay forwarding indicates that information includes at least one of：Control plane turns Bristle with anger and show, user plane forwarding instruction, forwarded upstream instruction down forwards instruction, can by the EPS load identifications of relay forwarding/ DRB marks/Logic Channel Identifier, each EPS carry corresponding upstream data forwarding instruction, downlink data forwarding instruction, uplink It forwards and indicates with downlink data.
The embodiment of the present invention also provides a kind of communication device of equipment direct communication system, is applied to remote user equipment UE, should Device for realizing embodiment illustrated in fig. 4 method, as shown in figure 5, the device includes：
AM access module 50, for accessing and/or being connected to relaying UE；
Forwarding module 52, for by forwarding data after UE among the above.
Optionally, the relaying access way that said distal ends UE and relaying UE are supported includes at least one of：sidelink Or PC5 interfaces, WLAN, bluetooth BlueTooth；Said distal ends UE accesses/is connected to relaying by above-mentioned sidelink or PC5 UE；Or distal end UE accesses relaying UE by WLAN；Or distal end UE accesses relaying UE by BlueTooth.
The embodiment of the present invention also provides a kind of communication means of equipment direct communication system relaying, as shown in fig. 6, this method packet It includes：
Step S602, base station receive relaying relevant configuration information, wherein are used for distal end UE after relevant configuration information among the above It was found that, measure, selection and access relaying UE；Step S604, base station according among the above after relevant configuration information execute among the above After the corresponding processing of relevant configuration information.
Optionally, base station receives relaying relevant configuration information, including：Above-mentioned base station is obtained by S1 interfaces from MME above-mentioned Relay relevant configuration information；Or above-mentioned base station is obtained from adjacent base station or target BS among the above after relevant configuration by X2 interface Information.Wherein, among the above after relevant configuration information include at least one of：Relay forwarding interest/request, relay forwarding carrying Instruction, distal end UE marks, access way, relaying UE marks, control plane forwarding instruction, user plane forwarding instruction, forwarded upstream refer to Show, down forwards instruction, uplink and downlink forwarding instruction, UE PC5 aggregate maximum bit rates；Wherein, access way includes：D2D Access, WLAN accesses, BlueTooth accesses.
Optionally, above-mentioned base station is obtained among the above from MME after relevant configuration information by S1 interfaces, including it is following at least it One：Above-mentioned base station is established request or bearing modification request message by the carrying of S1 interfaces and is matched among the above after correlation from MME acquisitions Confidence ceases；Above-mentioned base station is established request or UE context modification requests message by the initial context of S1 interfaces and is obtained from MME Among the above after relevant configuration information；Above-mentioned base station by the switching requests of S1 interfaces and/or path switching request acknowledgement message from MME is obtained among the above after relevant configuration information；Above-mentioned base station is obtained by the MME configurations transmission message of S1 interfaces from MME above-mentioned Relay relevant configuration information.
Optionally, above-mentioned base station obtains relaying relevant configuration information by X2 interface from adjacent/target BS, including following At least one：Above-mentioned base station is obtained from adjacent base station or target BS among the above after correlation by the switching request message of X2 interface Configuration information；Above-mentioned base station establishes request by the X2 of X2 interface or X2 establishes response message and obtained from adjacent base station or target BS Take relaying relevant configuration information；It is obtained from adjacent base station or target BS by the base station configuration transmission message of X2 interface above-mentioned base station Take relaying relevant configuration information.
Optionally, above-mentioned base station is obtained from MME among the above before relevant configuration information by S1 interfaces, including：It is above-mentioned MME receives distal end UE or relays the relaying relevant configuration information that UE is sent.
Optionally, the above method further includes：Said distal ends UE or relaying UE is sent above-mentioned by least one following message Relay relevant configuration information：Attach is asked, service request, bearing resource distribution request, bearing resource modification request.
Optionally, above-mentioned base station according among the above after relevant configuration information execute with it is corresponding after relevant configuration information among the above Processing, including：If the base station receives relay forwarding interest or relay forwarding request, the base station select for distal end UE Or configuration relaying UE；With or, base station sends relay forwarding to relaying UE carries foundation request, base station receives in relaying UE transmissions It is carried after forwarding and establishes response；If above-mentioned base station receives relay forwarding carrying instruction, above-mentioned base station is held according to relay forwarding It carries instruction and distinguishes the Uu carryings of relaying UE and the Uu carryings of relaying UE revolution evidences, downlink distal end UE data are properly mapped to phase Uu is answered to carry；If above-mentioned base station receives at least one of relaying relevant configuration information：Distal end UE marks, access way, in After UE marks, forwarded upstream instruction, instruction, uplink and downlink forwarding instruction are down forwarded, above-mentioned base station preservation receives upper State relaying relevant configuration information, and according to different access ways, UE measures configuration, resource is matched to distal end UE and/or relaying Set and/or carry configuration；If above-mentioned base station receives UE PC5 aggregate maximum bit rates, above-mentioned base station is according to UE-PC5- AMBR is distal end UE or relaying UE carries out PC5 resource distributions.
After the base station receives the UE-PC5-AMBR, the base station is by RRC dedicated signalings by the UE- PC5-AMBR is sent to distal end UE or relaying UE；The distal end UE or relaying UE independently select to provide according to the UE-PC5-AMBR Source carries out PC5 communications.
Optionally, it includes at least one of that request is established in above-mentioned relay forwarding carrying：The WLAN MAC Address of distal end UE, The E-RAB marks for being expected that by relay forwarding of ProSe the UE ID, distal end UE of distal end UE, qos parameter, eNB GTP tunnels are whole Node；And/or
It includes at least one of that response message is established in above-mentioned relay forwarding carrying：Allow the E-RAB by relay forwarding Identification list, the E-RAB identification lists that refusal passes through relay forwarding；
Optionally, after above-mentioned base station transmission relay forwarding carrying establishes solicited message to relaying UE, including：The relaying UE, which carries relay forwarding, establishes in request the E-RAB progress admission controls for being expected that by relay forwarding, and relaying UE is according to oneself Carrying situation, determine it is no have the established forwarding Uu carrying for meeting QoS demand, and determine and allow to receive the forwarding established Uu is carried；If in the presence of allowing that the forwarding Uu carryings established, relaying UE initiations is received to establish corresponding EPS carryings or the base station It receives the relay forwarding carrying that relaying UE is sent to establish after response message, base station sends the configuration information for establishing forwarding Uu carryings Give relaying UE.
Optionally, the foundation forwarding Uu carrying configuration informations that the base station is sent to relaying UE include at least one of： Uu DRB marks, PDCP configurations, RLC configurations, Logic Channel Identifier, logic channel configuration.
The embodiment of the present invention additionally provides a kind of communication means of equipment direct communication system relaying, as shown in fig. 7, this method packet It includes：
Step S702, base station obtain PC5 interface configuration informations, wherein the PC5 interface configuration informations are for configuring UE supports Device-to-device D2D communication functions；Optionally, which can obtain from other entities such as MME, can also be from being locally stored It obtains.
Step S704, base station send PC5 interface configuration informations to user equipment (UE).
Optionally, above-mentioned PC5 interface configuration informations include at least one of：PC5 carries configuration information, PC5 logics letter Map information, PC5 packet priorities and Uu between road configuration information, Uu priority of logical channels and PC5 logic channels are held Map information, the relay forwarding of the service quality rating mark QCI of load indicates information.
Optionally, above-mentioned UE includes：Distal end UE and/or relaying UE；Base station sends PC5 interface configuration informations to UE： Above-mentioned base station sends PC5 to said distal ends UE and carries configuration information；And/or above-mentioned base station sends PC5 carryings to above-mentioned relaying UE Configuration information；And/or above-mentioned base station sends relay forwarding instruction information to said distal ends UE or among the above after UE；And/or it is above-mentioned Distal end UE receives map information or PC5 data packets between the PC5 logic channels group that base station is sent and Uu priority of logical channels The map information of priority and Uu carryings QCI；And/or the PC5 logics for the said distal ends UE that base station is sent are received after UE among the above Map information between channel group and Uu priority of logical channels.
Optionally, the UE includes：Distal end UE and relaying UE；The base station receives the distal end UE marks that the relaying UE is sent Know；The base station determines whether that PC5 carryings are established in the relaying UE receivings according to scheduling of resource or distribution condition.
Optionally, after the base station sends relay forwarding instruction information to the relaying UE, described in the base station reception Relay the relaying response message that UE is sent, wherein the relaying response message is that the relaying UE is judging whether to establish described turn The information sent after hair Uu carryings.
Optionally, the response message includes：Relay forwarding receives information or relay forwarding refusal information, wherein described Relay forwarding receives information：Distal end UE's allows the EPS that EPS lists and refusal by relay forwarding pass through relay forwarding List.
Optionally, after the base station receives the relaying response message that the relaying UE is sent, the base station is in described Configuration information is established after UE transmission forwarding Uu carryings；The configuration information of establishing of forwarding Uu carryings includes at least one of： Uu DRB marks, Packet Data Convergence Protocol PDCP configurations, RLC configurations, Logic Channel Identifier, logic channel configuration.
Optionally, before the base station sends the relay forwarding instruction information to the distal end UE, the base station receives The relay forwarding interest indication information that the distal end UE is sent by the proprietary signalings of RRC, wherein relay forwarding interest indication information Including at least one of：Relay forwarding interest, control plane forwarding instruction, user plane forwarding instruction, forwarded upstream instruction, downlink Forwarding instruction is expected that by the EPS carrying lists of relay forwarding.
The embodiment of the present invention also provides a kind of communication system, including：User equipment (UE) and base station, above-mentioned user equipment are used It is configured in the PC5 interface configuration informations for receiving above-mentioned base station transmission, and according to above-mentioned PC5 interface configuration informations, wherein The PC5 interface configuration informations are for configuring UE holding equipments to equipment D2D communication functions.
The embodiment of the present invention also provides a kind of communication system, including：Remote user equipment UE and relaying UE, wherein above-mentioned Distal end UE relays UE for accessing and/or being connected to, and by forwarding data after UE among the above.
Above-described embodiment in order to better understand is described in detail with reference to embodiments.
Following embodiment technical problems to be solved are how to support that relaying UE forwardings distal end UE (includes but not limited to that can wear Wear/eMTC/NB-IoT equipment (w-UE)) the carrying configurations of data and problem of management.The method proposed by following embodiment, far It holds UE to establish with relaying UE to communicate to connect, and carries out negotiation configuration and the Uu of the PC5 carryings of relaying UE forwarding distal end UE data Carrying configuration communicates to ensure that distal end UE is smoothed out by relaying UE with network.It should be noted that in following instance with It is illustrated for wearable UE (w-UE), and r-UE or relay UE is used to indicate relaying UE in the following example.
Example 1
The data that this example provides the wearable/eMTC/NB-IoT UE of one kind are forwarded by relaying UE under scene, and forwarding is held It carries configuration and establishes related procedure, as shown in Figure 8.In this example, w-UE is in and normally covers or spread over down, can with eNB Directly to carry out Signalling exchange, the problems such as considering cost and economize on electricity, relaying r-UE is found, data are forwarded by r-UE, reaches and subtracts The purpose of low power consumption, relaying r-UE are in connected state, and w-UE and r-UE is under the covering of same base station.
Step 0：Relay is found and selection.R13 ProSe UE-to-network relay have found flow, support two kinds Relay discovery modes, relay broadcast discovery messages, w-UE is monitored or w-UE sends discovery solicitation and disappears Breath, relay responses.W-UE independently selects relay according to link-quality, the signal strength etc. between r-UE, and will be selected Relay reports eNB.
Step 1：When w-UE has data to send or network has data to w-UE, the EPS carryings of w-UE or PGW initiations w-UE It establishes.The EPS loading establishing process of w-UE is tradition LTE flows, is industry knowledge, which is not described herein again.
Step 2：When the EPS carryings that w-UE or PGW initiates w-UE are established, and eNB is that w-UE configures corresponding Uu mouthfuls of DRB, ENB can be that EPS carryings configure corresponding PC5 carryings simultaneously.It includes following arbitrary combination that configuration information is established in PC5 carryings： PC5 load identifications, pdcp configurations, rlc configurations, Logic Channel Identifier, logic channel configuration, PC5 carry QoS information；Wherein, Rlc configurations include following arbitrary combination：Poll retransmission timer (t-PollRetransmit), polling protocol data cell (pollPDU), poll byte number (pollByte), maximum retransmission threshold value (maxRetxThreshold), reorder timer (t- Reordering), Status Disable timer (t-StatusProhibit), Unacknowledged Mode serial number field grow (sn- FieldLength)；Logic channel configures：Logic channel group LCG, preferential ensures bit rate PBR, bucket size duration BSD；It includes following arbitrary combination that PC5, which carries QoS information,：Service quality rating QCI ensures bit rate GBR, maximal bit speed Rate MBR, UE Aggregate Maximum Bit Rate (UE-AMBR).PC5 carries the PC5 load identifications established in configuration information, logic channel Mark, logic channel group can be multiplexed Uu DRB marks, Logic Channel Identifier, the logic channel group of corresponding EPS carryings, if It is not multiplexed, then EPS load identifications, Uu DRB marks comprising corresponding EPS carryings in configuration information are established in PC5 carryings.PC5 is carried Configuration information is sent to w-UE by RRC reallocation messages.Optionally, it includes to be initiated to relay UE that PC5, which is carried in configuration information, The instruction information that PC5 carryings are established.And after the completion of PC5 is carried and established (i.e. after the completion of step 4), w-UE sends RRC weights to eNB Completion is established with message instruction PC5 carryings are completed.
Step 3：W-UE carries out safe floor 2 with selected r-UE and connect, and w-UE sends direct communication request to r-UE and takes Band ProSe UE ID, r-UE responses.Direct communication request and response message can be multiplexed the PC5Signalling of R13 Protocol message (NAS message), or pass through PC5AS signaling message, it is meant that PC5 chain of command agreement stack can increase class Like the protocol layer of RRC.
Step 4：PC5 carries configuration interactive and carrying is established.W-UE sends PC5 carryings to r-UE and establishes message, carry from Configuration information and corresponding PC5 carrying QoS informations are established in the PC5 carryings that eNB is received, and r-UE sends response message, and completes PC5 Carrying configuration.Related news are established in connection in similar step 3, and PC5 carryings are established and response message can also be PC5NAS letters Enable message or PC5AS signaling messages.
Step 5：R-UE receive w-UE PC5 carrying establish message after, can to w-UE carry out admission control.R-UE according to The carrying QoS informations of the PC5 in configuration information and the established PC5 carryings of r-UE are established in the PC5 carryings that the w-UE received is sent Quantity, resource load condition, it is determined whether receive and establish new PC5 carryings；Or PC5 carryings QoS information is sent to base by r-UE It stands, base station determines whether that r-UE receivings are established the PC5 and carried according to scheduling of resource/distribution condition.R-UE is allowing to receive Transmission PC5 carryings establish response message to w-UE after establishing PC5 carryings.
Step 6：After message is established in the PC5 carryings for receiving w-UE and PC5 carryings are established in receiving, r-UE judges whether r-UE It needs to establish the EPS carryings for being exclusively used in forwarding w-UE data, configuration is established in the PC5 carryings that r-UE is sent according to the w-UE received In information PC5 carrying QoS information and r-UE safeguarded EPS carrying list information, it is determined whether have meet the requirements it is special In forwarding w-UE data EPS carrying, if it is not, r-UE to network originated traffic ask, bearing resource distribution request or Bearing resource modification request, is established or modification is exclusively used in forwarding the EPS carryings of w-UE data, and it is to pass which, which carries Establishing process, System LTE flows, which is not described herein again.
Step 7：R-UE is after establishing the EPS carryings for being exclusively used in forwarding w-UE data, and by RRC information, (RRC is proprietary Signaling or RRC, which are re-matched, completes message or sidelinkUEInformation) indicate that EPS carryings are exclusively used in forwarding w-UE to eNB Data (carry EPS load identifications/DRB marks/Logic Channel Identifier), in order to when there are two QCI values are identical by r-UE When EPS carryings (data for sending r-UE oneself, one is exclusively used in forwarding w-UE data), which eNB can distinguish EPS carryings/DRB is sent for forwarding w-UE data to correctly map the data into corresponding carrying.
Step 8：W-UE and eNB negotiates to carry by the EPS of relay forwarding, and specific method is shown in that example 5 is establishing w-UE EPS carry corresponding PC5 carrying and r-UE is exclusively used in after the Uu carryings of forwarding w-UE data, w-UE can negotiate with eNB The data of which EPS carrying are forwarded by r-UE, and later, the data of the EPS carryings of the w-UE of these agreements are just turned by r-UE Hair.
Example 2
This example provides the data of another wearable/eMTC/NB-IoT equipment (w-UE) by relaying r-UE forwardings Under scene, forwarding carrying configures and establishes related procedure specific example, as shown in Figure 9.This example and example 1 are substantially similar, only It is that the sequence of separate step is adjusted.
Step 0：W-UE has data to send or initiates EPS carrying foundation according to business demand.For traditional LTE flows, here It repeats no more.
Step 1：W-UE carries out relay discoveries and selection, and R13ProSe UE-to-Network relay have found flow.And After selecting relay UE, carries out safe floor 2 with selected relay UE and connect, specifically, as step 3 in example 1.
Step 2：W-UE and eNB negotiates to carry by the EPS of relay forwarding, and specific method is shown in that example 5 is different from example 1 In, after the EPS for establishing w-UE carries corresponding PC5 carryings, the data which EPS carrying w-UE and eNB negotiates pass through Relay forwarding, in this example, w-UE negotiates the EPS carryings by relay forwarding with eNB and then carries out corresponding PC5 carryings It establishes and r-UE is exclusively used in the foundation that the Uu of forwarding w-UE data is carried.
Step 3：After w-UE and eNB negotiate the data of which EPS carrying by relay forwarding, eNB is that w-UE configures these EPS carries corresponding PC5 carryings, and PC5 carrying configuration informations are issued w-UE by eNB by RRC reallocation messages.Specifically, PC5 is held Configuration information is carried as introduced in step 2 in example 1.And after the completion of PC5 is carried and is established (i.e. after the completion of step 4), w- UE sends RRC re-matching completion message instruction PC5 carryings to eNB and establishes completion.
Step 4-5：PC5 carries configuration interactive between w-UE and r-UE and carrying is established, and r-UE carries out receiving control to w-UE System.Specifically, as step 4-5 in example 1.
Step 6：After message is established in the PC5 carryings for receiving w-UE and PC5 carryings are established in receiving, r-UE judges whether r-UE It needs to establish the EPS carryings for being exclusively used in forwarding w-UE data, configuration is established in the PC5 carryings that r-UE is sent according to the w-UE received In information PC5 carrying QoS information and r-UE safeguarded EPS carrying list information, it is determined whether have meet the requirements it is special In forwarding w-UE data EPS carrying, if it is not, r-UE to network originated traffic ask, bearing resource distribution request or Bearing resource modification request, is established or modification is exclusively used in forwarding the EPS carryings of w-UE data, meanwhile, these of w-UE to MME are asked Forwarding carrying instruction can be carried by asking in message, related news (Bearer setup are established in the carrying for issuing eNB in MME later Request/Session management request/Bearer modify request) in also carry forwarding carrying refer to Show, it is tradition LTE flows which, which carries other steps in Establishing process, and which is not described herein again.
In the data for deciding through consultation which EPS carrying of w-UE by relay forwarding, and establishes corresponding PC5 carryings and held with forwarding Uu After load, the data of these EPS decided through consultation carryings of w-UE are just by relaying r-UE forwardings.
Example 3
This example provides the data of another wearable/eMTC/NB-IoT equipment (w-UE) by relaying r-UE forwardings Scene, when having downlink w-UE data to reach eNB, configuration is established in PC5 carryings and the specific reality of related procedure is established in Uu forwarding carryings Example, as shown in Figure 10.
Step 1：For w-UE according to demands such as QoS, economize on electricitys, high level determines communication mode of the selection by relay forwarding, w- UE (is established in request message in RRC connections when RRC connections are established and is carried the instruction of PC5 transmission interest) to eNB instruction PC5 communications Interest.
Step 2：W-UE carries out relay discoveries and selection, and R13ProSe UE-to-network relay have found flow.W- UE informs eNB after selecting relay, by selected relay information, that is, passes through sidelinkUEInformation message Carry the ProSe UE ID of relay.W-UE establishes safe floor 2 with relay UE and connect, specifically, with step 3 one in example 1 Sample.
Step 3-4：When network has the data for issuing w-UE, the EPS carryings that PGW initiates w-UE are established, and are established in carrying After the completion, w-UE data are transferred to eNB, traditional LTE flows by the carrying.
Step 5：W-UE has informed eNB its PC5 transmission interest instructions, and eNB preserves the selected relay of w-UE W-UE data need to be transmitted to w-UE by UE information, eNB by relay.If eNB has found that relay UE do not meet qos requirement The Uu DRB, w-UE and r-UE for being exclusively used in forwarding w-UE data not yet establish corresponding PC5 carrying, eNB is w-UE and r-UE It carries out PC5 carryings configuration and the Uu carryings of forwarding w-UE data configures.
Step 6：The foundation of w-UE PC5 carryings.ENB, which carries PC5 to establish to configure, is sent to w-UE.Optionally, PC5 is held Load is established in configuration information comprising configuration instruction simultaneously, informs that w-UE/r-UE, eNB have been that other side configures PC5 carryings, it is not necessary to send out Play PC5 carrying interactions.After the completion of PC5 is carried and established, w-UE sends RRC reallocation messages and has been established to eNB instruction PC5 carryings At.
Step 7：R-UE PC5 carryings are established and the Uu DRB of forwarding w-UE data are established.PC5 is carried and is established configuration by eNB And the Uu DRB configurations of forwarding w-UE data are sent to w-UE, Uu DRB configurations include：Uu DRB marks, pdcp configurations, rlc match It sets, Logic Channel Identifier, logic channel configuration.It initiates to establish the EPS carryings for forwarding w-UE data with r-UE in examples detailed above Difference is, forwards the EPS carryings of w-UE data to obtain Uu DRB by foundation in examples detailed above, and w- is forwarded in this example The Uu DRB of UE data, the one section of DRB only to eat dishes without rice or wine are carried without corresponding EPS.R-UE is carried to establish and is completed and turn in PC5 After the completion of sending out Uu DRB foundation, sends RRC reallocation messages and indicate that completion is established in PC5 carryings and Uu DRB foundation is completed to eNB.
The data of w-UE are sent to relay by eNB by the newly-established DRB for being exclusively used in forwarding w-UE data of relay UE After UE, relay UE receive the data of w-UE, w-UE is sent the data to by PC5 carryings.Relay UE forward w-UE data PC5 carrying and Uu carrying completion has been established, subsequently have the uplink/downlink data of the w-UE of identical QoS demand that can pass through Relay UE forwardings.
Figure 11 is similar with Figure 10, and difference is that initiating PC5 carryings to w-UE from relay UE establishes, and relay UE pass through hair Tradition EPS carrying Establishing process establishes the Uu carryings (identical with example 1) for being exclusively used in forwarding w-UE data.When there is w-UE Downlink data reaches eNB, and eNB transmission PC5 carryings establish configuration information and relay UE, relay UE is given to be held to w-UE initiations PC5 It carries and establishes, carry PC5 carryings and establishes configuration information, w-UE is received after PC5 carryings establish configuration information, is established PC5 by configuration and is held Carry, and send PC5 carrying establish response message give relay UE, relay UE complete PC5 carrying establish after send messages to ENB informs that PC5 carryings are established and completes.While having w-UE downlink datas to reach eNB, eNB checks whether relay UE have satisfaction The EPS carryings of the forwarding w-UE data of qos requirement, if it is not, eNB instruction relay UE initiate to establish forwarding w-UE data EPS carrying, and the EPS carry establish after the completion of, relay UE to eNB indicate the EPS carrying for forwarding w-UE data.
Example 4
This example provides the data of another wearable/eMTC/NB-IoT equipment (w-UE) by relaying r-UE forwardings Scene, w-UE and eNB do not have direct signaling interaction, w-UE control plane signalings and user face data to be forwarded, had by relay UE Body example is as shown in figure 12.Relay UE are in connected state and have activated relay relevant configurations.
Step 0：Relay is found and selection.Same examples detailed above.
Step 1：Find that w-UE establishes safe floor 2 with selected relay UE and connect/communication with after selection completing relay Connection.In this example, relay connections are established related news and are carried out by PC5 AS signalings.Relay UE are receiving the straight of w-UE After connecing communication request, sends sidelinkUEInformation and carry remote UE ID to eNB, inform that eNB there are w-UE connections To it, and to carry out relay communications.ENB preserves w-UE information.Optionally, relay UE are obtained from ProSe function The information such as the subscription information of remote UE and mandate, and these information are carried and are sent in sidelinkUEInformation To eNB.
Step 2-5：W-UE oneself generates RRC connections and establishes solicited message.Control plane signaling is forwarded to complete by relay Process is established in RRC connections.The RRC connection request information of generation is sent to relay UE, relay by w-UE by control plane message After UE is received, the RRC connection request information of w-UE is transmitted to eNB；ENB does access control to w-UE, is accessed allowing w-UE Afterwards, the RRC connections for sending w-UE establish information relay UE, relay UE are given to forward that information to w-UE；W-UE is completed After RRC connections are established, sends RRC connections completion information carrying Attach message and relay UE, relay UE is given to be transmitted to eNB, Attach message is forwarded to core net by eNB, and the attaching process for completing w-UE is forwarded by relay.
Step 6：The EPS carryings of w-UE are established.The EPS carrying configuration informations of w-UE are sent to relay UE by eNB, Relay UE are transmitted to w-UE.W-UE completes EPS carryings/Uu DRB with postponing, and sends RRC and re-matches and completes message to eNB, by Relay UE forwardings.
Step 7-8：The corresponding PC5 carryings of the EPS carryings of w-UE are established configuration information and are sent to relay UE by eNB, by Relay UE initiate PC5 carryings to w-UE and establish.And inform eNB after the completion of PC5 carryings are established.
The same with examples detailed above, relay UE can detect whether the Uu carryings for the forwarding w-UE data for meeting qos requirement, If no, will initiate to establish the EPS carryings for being exclusively used in forwarding w-UE data and be indicated to eNB.Later, identical QoS needs The uplink and downlink data of the w-UE asked just pass through relay forwarding.
Example 5
This example provides the w-UE and eNB mentioned in examples detailed above the methods for negotiating to carry by the EPS of relay forwarding.
Method one：W-UE chooses whether the communication party forwarded by relay according to QoS, economize on electricity demand etc. by high-rise Formula after selection, can inform the tendency of eNB its data communications in Attach, service request, RRC connections when establishing Property.This method is embodied in example 3.
Method two：W-UE to eNB send relay forwarding instruction, specifically, may include relay forwarding interest instruction or Relay UE ID, then the data of all EPS carryings of w-UE later are all forwarded by relay；Alternatively, comprising needing to pass through EPS load identifications/Logic Channel Identifier of relay forwardings/Uu DRB marks, further, also may include per bearer couple The forwarded upstream answered indicates, down forwards instruction, uplink and downlink forwarding instruction.W-UE can pass through the proprietary signalings of RRC or RRC It re-matches completion message or sidelinkUEInformation message and relay forwarding instruction information is sent to eNB.
Method three：ENB sends relay forwarding instruction, specifically such as RRC reallocation messages by the proprietary signalings of RRC to w-UE , the related letter of EPS carryings for the w-UE that relay UE ID and relay relevant configurations and relay are forwarded can be included Breath, such as EPS load identifications/Logic Channel Identifier/Uu DRB marks, further, each carry corresponding forwarded upstream instruction, Down forward instruction, uplink and downlink forwarding instruction.
Method four：W-UE passes through relay forwarding when EPS is carried and established or change to MME instructions, and MME is indicated to eNB again EPS carryings data pass through relay forwarding.Specifically, w-UE is to network originated traffic request, bearing resource distribution request or holds Resource modifying request is carried, when establishing or change EPS carryings, relay forwarding instruction is carried in these request messages, MME exists later Related news (Bearer setup request/Session management request/ are established in the carrying for issuing eNB Bearer modify request) in carry relay forwarding instruction.
Example 6
PC5 carryings between w-UE and relay UE, support the modification and release of PC5 carryings, can be by w-UE or relay UE is initiated.When the PC5 of w-UE carries corresponding EPS carryings, and modification occurs with release, the modification and release of PC5 carryings are initiated. Or when the data of certain EPS carryings are not required to forward by relay, discharge the EPS and carry corresponding PC5 carryings.Or work as When PC5 resources are not enough, when low priority PC5 bearing resources are seized in high priority PC5 carryings, the PC5 carryings of release low priority.
As shown in figure 13, when the PC5 of w-UE, which carries corresponding EPS carryings, to be changed, eNB simultaneously carries the EPS Corresponding PC5 bearing modifications configuration is sent to w-UE, and w-UE receives the PC5 bearing modifications of eNB with postponing, sends PC5 carryings and repair Change message and give relay UE, carry out PC5 bearing modifications, relay UE send PC5 bearing modification response messages to w-UE.It completes After PC5 bearing modifications, w-UE sends RRC reallocation messages and informs that PC5 bearing modifications are completed to eNB.
As shown in figure 14, a kind of PC5 carrying release flows of w-UE are provided, eNB indicates w-UE release PC5 carryings, packet Load identification/Logic Channel Identifier of the carrying containing the PC5 to be discharged, optionally, including release cause；W-UE receives PC5 carryings After release instruction, sends PC5 carrying release messages and give relay UE, carry the PC5 to be discharged load identifications/logic channel mark Know.After completing PC5 carrying releases, w-UE informs that eNB PC5 carrying releases are completed by RRC reallocation messages.
Example 7
In examples detailed above, before w-UE forwards data (w-UE and r-UE carries out PC5 communications) by r-UE, foundation/dimension is needed PC5 logical connections (PC5 carryings are established) are protected, this example provides the side that one kind not safeguarding PC5 logical connections (UE realizes PC5 carryings) Method, detailed process are as shown in figure 15.
Step 1-2：Relay is found and selection, and establishes the connection of PC5 safe floors 2.W-UE has data transmission, establishes EPS and holds It carries.
Step 3：Admission control is carried out to the EPS carryings of the w-UE of forwarding, if not meeting the forwarding w-UE of qos requirement The Uu of data is carried, then initiates the Uu carryings for establishing forwarding w-UE data.
Step 4：Base station sends RRC reallocation messages to w-UE, can carry following arbitrary combination：It can be forwarded by relay EPS load identifications/DRB marks/Logic Channel Identifier list, configure w-UE Uu priority of logical channels and PC5 LCG it Between mapping relations, the mapping between the QCI and PPPP (ProSe Per Packet Priority) of w-UE EPS carryings/DRB Relationship；
Step 5：Uu data are gone to PC5 interfaces and sent by w-UE, the Uu priority of logical channels that can be configured according to base station The Uu that the mapping relations or w-UE of the Uu QCI and PPPP of mapping relations or base station configuration between the LCG of PC5 are pre-configured Uu data are mapped to PC5 interfaces and sent by the mapping relations of QCI and PPPP；
Step 6：W-UE oneself realizes PDCP entities/RLC entities/logic channel/MAC entity hair when there is data transmission It is RLC UM entities or RLC AM entities to send data, RLC entities, and wherein RLC AM substance parameters include following arbitrary combination：RLC AM mode sequences number, poll retransmission timer (t-PollRetransmit), polling protocol data cell (pollPDU), poll Byte number (pollByte), maximum retransmission threshold value (maxRetxThreshold), the timer that reorders (t-Reordering), shape State forbids timer (t-StatusProhibit)；After receiving terminal r-UE receives first MAC PDU, it is real to establish receiving terminal PDCP Body/RLC entities/logic channel/MAC entity receives data.
Example 8
A kind of w-UE of this example offer accesses relaying r-UE, and the method for carrying out data forwarding by r-UE by WLAN, Detailed process is as shown in figure 16.W-UE and relaying r-UE is under eNB coverings.
Step 1：Due to demands such as economize on electricity, QoS, w-UE has the interest by relay forwarding, w-UE to pass through the proprietary signalings of RRC There are relay forwarding interest and w-UE capability reportings (such as the relaying access way supported to eNB instructions：D2D、WLAN、 BlueTooth)；
Step 2：Have relay abilities or meet the relay UE of relay startup thresholds, is sent out to eNB by proprietary signaling Relaying is sent to support instruction information.Relaying supports that instruction information includes following arbitrary combination：UE marks are relayed, relaying supports instruction, The relaying access way of support, WLAN information, BlueTooth information；Wherein, relaying access way includes：D2D is accessed, WLAN Access, BlueTooth accesses；WLAN information includes：WT (WLAN Termination) is identified, WLAN marks, basic service set Identify BSSID, WLAN action types, WLAN country codes, maximum capacity, WLAN bandwidth informations, service set SSID, homogeneity Extended service set HESSID.When relaying supports the arbitrary fields in instruction information to change, relay sends relaying branch to eNB It holds fresh information and/changes/arbitrary fields re-matched in relaying support instruction information for updating.
Step 3：ENB sends relaying relevant configuration information to w-UE.It includes following arbitrary combination to relay relevant configuration information： Relaying measures thresholding, and relaying finds that thresholding, relay selection thresholding, relay selection hysteresis relay and find transmission/reception resource, WLAN measures thresholding, WLAN measurement configuration informations, and WLAN selects thresholding, WLAN that hysteresis, BlueTooth is selected to select thresholding, BlueTooth selects hysteresis；Base station sends relaying relevant configuration information by the proprietary signalings of RRC or broadcast message；
Step 4：W-UE carries out WLAN measurements according to the WLAN measuring configurations that eNB is sent, and measurement result is reported eNB；
Step 5：The metrical information that eNB is reported according to w-UE selects relay UE (WLAN) for w-UE；
Step 6：ENB sends relay forwarding solicited message and gives the relay UE, relay forwarding solicited message to include：W-UE's WLAN MAC Address, the E-RAB marks for being expected that by relay forwarding of ProSe the UE ID, w-UE of w-UE, qos parameter, eNB GTP tunnel destination node；Base station can send relay forwarding solicited message by RRC reallocation messages.Relaying r-UE receives base station After the relay forwarding solicited message of transmission, relaying r-UE be expected that by asking relay forwarding the E-RAB of relay forwarding into Row admission control, r-UE according to the carrying situation of oneself, see if there is it is established meet QoS demand be exclusively used in forwarding w-UE The Uu DRB of data and determination can receive the Uu carryings for being exclusively used in forwarding w-UE data of foundation.Then, relaying UE is sent Relay forwarding response message includes to base station, relay forwarding response message：That receives can pass through the E-RAB identity columns of relay forwarding Table, the E-RAB identification lists by relay forwarding of refusal；Relay forwarding response message by RRC re-match complete or SidelinkUEInformation message issues base station.
Step 7：If the Uu carryings for being exclusively used in forwarding w-UE data of foundation can be received by having, r-UE initiates to establish corresponding EPS carries (traditional process) or base station receives after relaying the relay forwarding response message that r-UE is sent, and base station transmission is established special For forwarding the configuration information that the Uu of w-UE data is carried to r-UE.
Step 8：Base station by RRC reallocation messages by selected relay UE, and the EPS carrying informations that can forward Issue w-UE；
Step 9：W-UE executes WLAN association to relaying r-UE, and sends WLAN connection status and report to base It stands；
Step 10：W-UE by relay r-UE forward data arrive network, and receive relaying r-UE forward carry out automatic network Data.
Example 9
This example provides another kind w-UE and accesses relaying r-UE by WLAN, and the side of data forwarding is carried out by r-UE Method, detailed process are as shown in figure 17.Difference lies in independently selected relay UE by w-UE with a upper example in this example.
Step 1-3：As step 1-3 in example 8；
Step 4：Reach the w-UE acquisition WLAN relevant informations (WLAN contents, non-3 gpp content) that WLAN measures thresholding, w- UE selects hysteresis according to WLAN information and WLAN the selection thresholding, the WLAN that get, selects WLAN (relay UE), then holds Row WLAN association to relay UE.
Step 5：If there is w-UE is successfully accessed relay (being associated with WLAN), relay UE send relay connection state report It accuses to eNB, includes the w-UE marks (such as WLAN MAC Address, the ProSe UE ID of w-UE) of access；
Step 6：It relays r-UE and admission control is carried out to the EPS carryings of the w-UE of forwarding, as step 6-7 in example 8；
Step 7：W-UE forwards data to network by relaying r-UE, or receives the number for carrying out automatic network of relaying r-UE forwardings According to.
Step 8-9：If w-UE is moved to other WLAN AP of WLAN mobile sets, relay UE report WLAN to base station Connection state information or update relay support instruction information (update connect/associated w-UE lists).
Example 10
This example provides base station and obtains the method that w-UE or r-UE relays relevant information from MME by S1 interfaces, specific to flow Journey is as shown in figure 18.
Step 1：W-UE selects the communication mode by relay forwarding according to the demands such as economize on electricity, QoS, high-rise or AS layer choosings, selects After selecting, w-UE is distributed/is changed in request message in the Attach requests or service requests that are sent to MME or bearing resource Carry relay forwarding interest/solicited message；
Step 2：After MME receives relay forwarding interest/request of w-UE, established in the UE initial contexts for being sent to eNB Request or carrying, which are established, carries relay forwarding interest/request in request or bearing modification request message, to inform eNB w-UE's Communication tendency；If w-UE is the UE for supporting D2D/PC5 communications, UE PC5 aggregate maximum bit rates can be also carried；
After base station receives relay forwarding interest/request of the w-UE of MME transmissions, if the relaying r- of w-UE is preserved in base station The information (relaying discovery and PC5 secure connections is completed with relaying r-UE in w-UE) of UE, is directly entered step 3；If base station does not have It is that w-UE selects/configure r-UE, and tells selected relaying r-UE to w-UE to have the relaying r-UE information of w-UE, base station；
Step 3：ENB sends relay forwarding carrying by RRC reallocation messages and establishes solicited message to r-UE is relayed, and relays and turns It includes following arbitrary combination that solicited message is established in hair carrying：The WLAN MAC Address of w-UE, ProSe the UE ID, w-UE of w-UE The E-RAB marks for being expected that by relay forwarding, qos parameter, eNB GTP tunnel destination nodes；After relaying r-UE receives the message Relay forwarding is carried and establishes in request the E-RAB progress admission controls for being expected that by relay forwarding, r-UE is held according to oneself Situation is carried, seeing if there is the established Uu DRB for being exclusively used in forwarding w-UE data for meeting QoS demand and determination can connect Receive foundation be exclusively used in forwarding w-UE data Uu carrying；Then, relaying r-UE by RRC re-match complete or SidelinkUEInformation message sends relay forwarding carrying and establishes response message to eNB, wherein can be with comprising what is received Pass through the E-RAB lists of relay forwarding w-UE and the E-RAB lists of refusal；If have can receive foundation be exclusively used in forwarding w-UE The Uu of data is carried, and r-UE initiates to establish corresponding EPS carryings or base station receives the relay forwarding carrying that relaying r-UE is sent It establishes after response message, base station sends the configuration information for establishing the Uu carryings for being exclusively used in forwarding w-UE data to r-UE；Wherein, Base station be sent to r-UE foundation be exclusively used in forwarding w-UE data Uu carrying configuration information include：Uu DRB marks, pdcp match It sets, rlc configurations, Logic Channel Identifier, logic channel configuration.
Step 4-5：R-UE initiates to establish the EPS carryings for being exclusively used in wearable UE data.In order to which MME/eNB can be distinguished EPS carryings/Uu the DRB for sending oneself data and EPS carryings/Uu DRB, r-UE for forwarding w-UE data of r-UE Relay forwarding carrying instruction is carried in the bearing resource distribution for issuing MME/modification request, is used to indicate the EPS carryings/correspondence Uu DRB be exclusively used in forwarding w-UE data；MME also carries the instruction in the carrying foundation for being sent to eNB/modification request and accuses ENB is known, in this way when (data for sending r-UE oneself, one special there are two the identical EPS carryings of QCI values by r-UE In forwarding w-UE data) when, which EPS carryings/DRB eNB can distinguish for forwarding w-UE data, to correctly reflect data Corresponding carrying is mapped to send.
Step 6：ENB establishes response message in the relay forwarding carrying for receiving r-UE transmissions and/or r-UE completes to establish forwarding After EPS carryings/Uu DRB of w-UE data, following arbitrary information is issued w-UE by eNB by RRC reconfiguration messages：It is selected Relaying r-UE mark (selecting r-UE if it is eNB), EPS load identifications/Uu DRB marks/logic of relay forwarding can be passed through Channel logo, PC5 carryings configuration (if PC5 carryings configuration is carried out by eNB), the mapping relations of QCI and PPPP, Uu DRB logics Channel priority and PC5LCG mapping relations etc..
W-UE establishes PC5 carryings or execute WLAN association according to configuration information accesses relay UE by WLAN Or relay UE are accessed by BlueTooth.Later, w-UE can be by the data of the EPS of relay forwarding carryings just by relaying r- UE is forwarded.
Example 11
This example provides base station and obtains the side that w-UE or r-UE relays relevant information from adjacent/target BS by X2 interface Method, detailed process are as shown in figure 19.W-UE and r-UE is at eNB1, and w-UE has access to r-UE, by r-UE forwarding with Data between network is straight.
Step 1：W-UE is moved to cell edge and triggers measurement and reports, and source service eNB1 carries out switch decision after receiving It is switched to eNB2；
Step 2：The source eNB1 of w-UE sends switching request information and gives target eNB2, wherein the relaying for carrying w-UE is related Information, as relay forwarding interest, access way, (being connected) relaying r-UE marks, uplink/downlink forwarding indicate, the PC5 of w-UE Aggregate maximum bit rate (UE-PC5-AMBR)；In this way, if relaying r-UE is also under mobile handoff to eNB2, w-UE and r-UE is still Connection/association so is maintain, eNB2 can know the r-UE and relay forwarding situation that w-UE is connected quickly；Even if r-UE does not have It is moved under eNB2, eNB2 can also be configured according to information such as relay forwarding interest, access way, UE-PC5-AMBR for w-UE Measure or carry out suitable scheduling of resource/distribution.
Step 3：The w-UE that eNB2 carrys out request switching carries out admission control and resource reservation, and after, transmission is cut It changes request confirmation and is eating dishes without rice or wine to send switching command to w-UE to eNB1, eNB1；Later, w-UE execution eats dishes without rice or wine to be switched to eNB2；
Step 4：W-UE completion eat dishes without rice or wine to be switched to eNB2 after, eNB2 transmitting pathes switching request to MME, MME with service Gateway is completed by user plane data path after source base station is transformed into the path integration process of base station, and road is sent to target BS Diameter convert requests confirmation message, wherein carrying the relaying relevant information of w-UE.Target BS preserves w-UE and relays relevant information, and W-UE contexts and related resource are discharged by source base station.Later, by eNB2 w-UE is controlled and measurement of correlation configuration, Resource allocation.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but it is very much In the case of the former be more preferably embodiment.Based on this understanding, technical scheme of the present invention is substantially in other words to existing The part that technology contributes can be expressed in the form of software products, which is stored in a storage In medium (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal equipment (can be mobile phone, calculate Machine, server or network equipment etc.) execute method described in each embodiment of the present invention.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored It is performed by computing device in the storage device, and in some cases, it can be with different from shown in sequence execution herein The step of going out or describing, either they are fabricated to each integrated circuit modules or by them multiple modules or Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (63)

1. a kind of communication means of equipment direct communication system, which is characterized in that including：
User equipment (UE) receives PC5 interface configuration informations, wherein the PC5 interface configuration informations are arrived for configuring UE holding equipments Equipment D2D communication functions；
The UE is configured according to the PC5 interface configuration informations.
2. according to the method described in claim 1, it is characterized in that, the PC5 interface configuration informations include at least one of：
Reflecting between PC5 carryings configuration information, PC5 logic channel configuration information of data radio bearer, Uu priority of logical channels and PC5 logic channels Information, PC5 packet priorities and the map information of the service quality rating mark QCI of Uu carryings, relay forwarding instruction is penetrated to believe Breath.
3. according to the method described in claim 1, it is characterized in that, the UE includes：Distal end UE and/or relaying UE；The UE Receiving PC5 interface configuration informations includes：
The distal end UE receives the PC5 that base station is sent and carries configuration information；And/or
The relaying UE receives the PC5 that base station is sent and carries configuration information；And/or
The distal end UE or described relayings UE receives the relay forwarding that base station is sent and indicates information；And/or
The distal end UE receive map information between the PC5 logic channels group that base station is sent and Uu priority of logical channels or The map information of PC5 packet priorities and Uu carryings QCI；And/or
The relaying UE is received between the PC5 logic channels group and Uu priority of logical channels of the distal end UE that base station is sent Map information.
4. according to the method described in claim 2, it is characterized in that, PC5 carrying configuration informations include following one or appoint Meaning combination：Configuration information is established in PC5 carryings；PC5 bearing modification configuration informations；PC5 carrying release information.
5. method according to claim 2 or 4, which is characterized in that the PC5 carryings in the PC5 carryings configuration information are built Vertical configuration information includes at least one of：
PC5 load identifications, radio link control affirmation mode RLC AM configuration informations, radio link control non-acknowledgement Pattern RLC UM configuration informations, Logic Channel Identifier LC ID, logic channel group mark LCG ID, preferential ensures bit rate PBR, Bucket size duration BSD, UE PC5 Ploymerized Interface maximum bit rates, PC5 carry QoS information.
6. according to the method described in claim 5, it is characterized in that, PC5 carrying QoS informations include at least one of： Service quality rating QCI ensures bit rate GBR, maximum bit rate MBR.
7. according to the method described in claim 5, it is characterized in that,
The RLC AM configuration informations include at least one of：RLC AM sequence number length, poll retransmission timer, poll association Data cell is discussed, poll byte number, maximum retransmission threshold value, reorder timer, Status Disable timer；The RLC UM configurations Information includes at least one of：Unacknowledged Mode serial number field is long, maximum retransmission, and reorder timer.
8. according to the method described in claim 5, it is characterized in that,
PC5 load identifications, Logic Channel Identifier and logic channel group mark in configuration information, multiplexing are established in the PC5 carryings The EPS of user equipment (UE) is carried or Uu carrying configurations.
9. according to the method described in claim 4, it is characterized in that,
The PC5 bearing modifications configuration information is used to update or re-match the arbitrary fields combination that PC5 carryings are established in configuration information； The PC5 carryings release information includes at least one of：The PC5 load identifications discharged or Logic Channel Identifier are needed, is discharged Reason.
10. method according to claim 1 or 2, which is characterized in that the relay forwarding that the distal end UE is received indicates information Including at least one of：UE marks, control plane forwarding instruction are relayed, user plane forwards instruction, forwarded upstream instruction, downlink to turn Bristle with anger and shows, the EPS load identifications of relay forwarding, the DRB marks of relay forwarding, the Logic Channel Identifier of relay forwarding, each EPS Corresponding upstream data forwarding instruction is carried, each EPS carries corresponding downlink data forwarding instruction, and each EPS carryings correspond to Uplink and downlink data forwarding instruction.
The relay forwarding instruction information that the relaying UE is received includes at least one of：Distal end UE is identified, the control of distal end UE Face forwarding instruction, the user plane forwarding instruction of distal end UE, the forwarded upstream instruction of distal end UE, distal end UE's down forwards instruction, The EPS of the distal end UE of relay forwarding carries corresponding upstream data forwarding instruction, downlink data forwarding instruction, uplink and downlink number It is indicated according to forwarding, the EPS carrying informations of the distal end UE of relay forwarding；Wherein, which includes at least one of： EPS load identifications, QCI, GBR, MBR.
11. according to the method described in claim 1, it is characterized in that, the UE is matched according to the PC5 interface configuration informations It sets, including：
The distal end UE and relaying UE is established or changed or release PC5 carryings.
12. according to the method for claim 11, which is characterized in that the distal end UE and relaying UE establishes PC5 carryings Including：
The distal end UE transmissions PC5 carryings establish configuration information and give relaying UE；The distal end UE receives the PC5 that relaying UE is sent and holds It carries to establish and completes information；Or
The relaying UE sends PC5 carryings and establishes configuration information to the distal end UE；The relaying UE receives the distal end UE hairs The PC5 carryings sent, which are established, completes information.
13. according to the method for claim 12, which is characterized in that the distal end UE sends PC5 carryings and establishes configuration information After relaying UE, the method further includes：
The relaying UE receives the PC5 carryings that the distal end UE is sent and establishes configuration information；And/or
The relaying UE carries out admission control to the distal end UE；And/or
The relaying UE judges whether to establish forwarding Uu carryings, wherein forwarding Uu carryings forward distal end UE numbers for relaying UE According to base station.
14. according to the method for claim 12, which is characterized in that the relaying UE carries out receiving control to the distal end UE System, including：
The PC5 carrying QoS letters in configuration information are established in the PC5 carryings that the relaying UE is sent according to the distal end UE received Breath and the established PC5 carryings quantity of the relaying UE, resource load condition, it is determined whether receive and establish new PC5 carryings；Or
Distal end UE marks are sent to base station by the relaying UE, and the base station is according to scheduling of resource or distribution condition determination It is no that the relaying UE receivings is allowed to establish PC5 carryings.
15. according to the method for claim 13, which is characterized in that the relaying UE judges whether that establishing forwarding Uu carries, Including：
Carrying QoS informations of the PC5 in configuration information and described are established in PC5 that the relaying UE is sent according to distal end UE carrying The EPS carrying list informations that relaying UE is safeguarded, it is determined whether have the forwarding Uu carryings met the requirements, if it is not, described It relays UE and changes request, foundation or described turn of modification to network originated traffic request, bearing resource distribution request or bearing resource Send out Uu carryings.
16. according to the method for claim 15, which is characterized in that the business that the relaying UE is initiated to network is asked It asks, carry forwarding carrying instruction, forwarding carrying instruction in bearing resource distribution request or bearing resource modification request message For indicating the carrying for forwarding distal end UE data to network.
17. according to the method described in claim 3, it is characterized in that, the relaying UE receives the relay forwarding that base station is sent and refers to After showing information, the method further includes：
The relaying UE judges whether that establishing forwarding Uu carries, and forwarding Uu carryings forward distal end UE data to base for relaying UE It stands；
The relaying UE sends relay forwarding response message to base station.
18. according to the method for claim 17, which is characterized in that the relay forwarding response message includes：Relay forwarding Receive information or relay forwarding refusal information, wherein the relay forwarding receives information and includes：Distal end UE's allows to pass through relaying The EPS lists that the EPS lists of forwarding and refusal pass through relay forwarding.
19. according to the method for claim 17, which is characterized in that the relaying UE receives the PC5 carryings that base station is sent and matches After confidence breath or the relaying UE send relay forwarding response message to base station, the method further includes：
The relaying UE establishes configuration information from what base station reception forwarding Uu was carried；Configuration information packet is established in forwarding Uu carryings Include at least one of：Uu DRB marks, Packet Data Convergence Protocol PDCP configurations, RLC configurations, Logic Channel Identifier, logic Channel configuration.
20. according to the method described in claim 3, it is characterized in that, the relay forwarding that the distal end UE receives base station transmission refers to Before showing information, including：
The distal end UE sends relay forwarding interest indication information by the proprietary signalings of RRC to base station, wherein relay forwarding interest Indicate that information includes at least one of：Relay forwarding interest, control plane forwarding instruction, user plane forwarding instruction, forwarded upstream Instruction, down forwards instruction, is expected that by the EPS carrying lists of relay forwarding.
21. according to the method described in claim 1, it is characterized in that, the UE is matched according to the PC5 interface configuration informations It sets, including at least one of：
Distal end UE or relaying UE establishes configuration information according to the PC5 carryings received, completes PC5 carrying configurations, and send RRC weights Inform that completion is established in PC5 carryings to base station with message is completed；
The distal end UE or relaying UE completes PC5 bearing modifications, and send according to the PC5 bearing modification configuration informations received RRC re-matches completion message and informs that PC5 bearing modifications are completed to base station；
The distal end UE or relaying UE completes PC5 carrying releases according to the PC5 carrying release information received；
The distal end UE carries QCI's according to the relay forwarding instruction information and PC5 packet priorities PPPP and Uu that receive Map information, it would be desirable to the data by relaying the EPS carryings of UE forwardings are associated with corresponding PPPP according to the QCI that EPS is carried, and The data are transmitted by PC5 interfaces；
The mapping that the distal end UE carries QCI according to the PPPP and Uu of the relay forwarding instruction information and pre-configuration that receive is believed Breath, it would be desirable to by relaying the corresponding PPPP of data correlation of the EPS carryings of UE forwardings, and the number be transmitted by PC5 interfaces According to；
The distal end UE according to the relay forwarding instruction information and PC5 logic channels group and Uu priority of logical channels received it Between map information, it would be desirable to by relaying the corresponding PPPP of data correlation of the EPS carryings of UE forwardings, and pass through PC5 interfaces Transmit the data；
The distal end UE establishes PC5 load identifications or PC5 Logic Channel Identifiers in configuration information according to the PC5 carryings received Or the PC5 load identifications or PC5 Logic Channel Identifiers and the corresponding EPS EPS load identifications carried or Uu of distal end UE oneself generations DRB is identified or the one-to-one relationship of Uu Logic Channel Identifiers, it would be desirable to which the data by relaying the EPS carryings of UE forwardings map To corresponding PC5 carryings/PC5 logical channel transmissions.
22. a kind of communication means of equipment direct communication system, it is characterised in that：
Remote user equipment UE access and/or be connected to relaying UE；
The distal end UE forwards data by the relaying UE.
23. according to the method for claim 22, which is characterized in that the relaying access side that the distal end UE and relaying UE are supported Formula includes at least one of：Sidelink or PC5 interfaces, WLAN, bluetooth BlueTooth；The distal end UE passes through described Sidelink or PC5 accesses/is connected to relaying UE；Or distal end UE accesses relaying UE by WLAN；Or distal end UE passes through BlueTooth access relayings UE.
24. according to the method for claim 22, which is characterized in that distal end UE access and/or be connected to relaying UE before, institute The method of stating further includes：
The distal end UE receives the relaying relevant configuration information that base station is sent, and the relaying relevant configuration information is sent out for distal end UE Existing, measurement, selection and access relaying UE；
The distal end UE completes to configure according to the relaying relevant configuration information.
25. according to the method for claim 24, which is characterized in that the relaying relevant configuration information include it is following at least it One：
Relaying measures thresholding, and relaying finds that thresholding, relay selection thresholding, relay selection hysteresis relay and find transmission/reception money Source, WLAN measure thresholding, WLAN measurement configuration informations, and WLAN selects thresholding, WLAN that hysteresis, BlueTooth is selected to select door Limit, BlueTooth select hysteresis.
26. according to the method for claim 24, which is characterized in that the distal end UE receives the relaying correlation that base station is sent and matches Before confidence breath, the method further includes：
The distal end UE sends relay forwarding interest and is indicated to base station.
27. according to the method for claim 26, which is characterized in that
The relay forwarding interest instruction includes at least one of：Relay forwarding interest, desired relaying access way, control Face forwarding instruction, user plane forwarding instruction, forwarded upstream instruction down forward instruction, are expected that by the EPS carryings of relay forwarding Mark or DRB marks or Logic Channel Identifier, each EPS carries corresponding upstream data forwarding instruction, downlink data forwarding refers to Show, the instruction of uplink and downlink data forwarding.
28. according to the method for claim 24, which is characterized in that the distal end UE receives the relaying correlation that base station is sent and matches Before confidence breath, the method further includes：
The base station receives the relaying that relaying UE is sent and instruction information or relaying is supported to support fresh information, wherein the relaying Fresh information is supported to be used to update/modification/and re-match the arbitrary fields for relaying and supporting in instruction information.
29. according to the method for claim 28, which is characterized in that the relaying support to indicate information include it is following at least it One：UE marks are relayed, relaying supports instruction, the relaying access way of support, WLAN information, BlueTooth information.
30. according to the method for claim 29, which is characterized in that the WLAN information includes：WLAN terminal WT marks, WLAN is identified, basic service set identification BSSID, WLAN action type, WLAN country codes, maximum capacity, WLAN bandwidth informations, Service set SSID, homogeneity extended service set HESSID.
31. according to the method for claim 24, which is characterized in that the distal end UE is according to the relaying relevant configuration information Completing configuration includes：
The distal end UE executes that relaying measures or relaying is found or WLAN is measured, and to base station report measurement results；Or
The distal end UE executes relaying measurement or relaying is found or WLAN is measured, according to relaying measurement result or relay selection thresholding Or relay selection hysteresis or WLAN measurement results or WLAN selection thresholdings or WLAN selection hysteresis or BlueTooth select door Limit or BlueTooth select hysteresis, selection relaying UE or WLAN or BlueTooth.
32. according to the method for claim 31, which is characterized in that the distal end UE to after the report measurement results of base station, Including：
The base station is distal end UE selection relaying UE, and selected relaying UE is notified distal end by the proprietary signalings of RRC UE；It is described to include by selected relaying UE notices distal end UE by the proprietary signalings of RRC：The ProSe layers 2 for relaying UE identify ProSe layer2ID, or the C-RNTI of relaying UE are identified, or relay the WLAN MAC Address of UE.
33. according to the method for claim 22, which is characterized in that the distal end UE access and/or be connected to relaying UE it Afterwards, including：
The distal end UE or relaying UE send relay connection state report to base station；The relay connection state report includes following At least one：The WLAN MAC Address of the distal end UE, ProSe the UE ID, the ProSe of the relaying UE of the distal end UE UE ID relay access way, successful connection, connection failure, failure cause.
34. according to the method for claim 22, which is characterized in that the distal end UE by the relaying UE forwarding data it Before, including：
The relaying UE receives the relay forwarding solicited message that base station is sent；
The relaying UE sends relay forwarding response message to the base station.
35. according to the method for claim 34, which is characterized in that the relay forwarding solicited message include it is following at least it One：The WLAN MAC Address of the distal end UE, the ProSe UE ID of the distal end, the distal end is expected that by relay forwarding E-RAB marks, qos parameter, eNB GTP tunnel destination nodes.
36. according to the method for claim 34, which is characterized in that the relay forwarding response message include it is following at least it One：Allow the E-RAB identification lists by relay forwarding, the E-RAB identification lists that refusal passes through relay forwarding.
37. according to the method for claim 34, which is characterized in that the relaying UE, which receives the relay forwarding that base station is sent, to be asked After seeking information, including：
The relaying UE is expected that by relay forwarding E-RAB in asking relay forwarding carries out admission control, the relaying UE According to the carrying situation of the relaying UE, it is determined whether have the established forwarding Uu carryings for meeting QoS demand, and determine and permit Perhaps the forwarding Uu carryings of foundation are received；
If there is the forwarding Uu carryings that can receive foundation, the relaying UE initiations are established in corresponding EPS carryings or base station reception After the relay forwarding response message that UE is sent, base station sends the configuration information for establishing forwarding Uu carryings to the relaying UE.
38. according to the method for claim 37, which is characterized in that the forwarding Uu carryings that base station is sent to the relaying UE are matched Confidence breath includes at least one of：Uu DRB marks, pdcp configurations, rlc configurations, Logic Channel Identifier, logic channel configuration.
39. according to the method for claim 22, which is characterized in that the distal end UE by the relaying UE forwarding data it Before, the method includes：
The distal end UE receives the relay forwarding that base station is sent and indicates information, wherein the relay forwarding indicates that information includes following At least one：Control plane forwarding instruction, user plane forwarding instruction, forwarded upstream instruction down forward instruction, can be turned by relaying The EPS load identifications of hair can be identified by the DRB of relay forwarding, can pass through the Logic Channel Identifier of relay forwarding, each EPS Carry corresponding upstream data forwarding instruction, downlink data forwarding instruction, the instruction of uplink and downlink data forwarding.
40. a kind of communication means of equipment direct communication system relaying, which is characterized in that including：
Base station receives relaying relevant configuration information；
The base station executes processing corresponding with the relaying relevant configuration information according to the relaying relevant configuration information.
41. according to the method for claim 40, which is characterized in that base station receives relaying relevant configuration information, including：
The base station obtains the relaying relevant configuration information by S1 interfaces from mobile management entity MME；Or
The base station obtains the relaying relevant configuration information by X2 interface from adjacent base station or target BS.
42. according to the method for claim 40, which is characterized in that the relaying relevant configuration information include it is following at least it One：Relay forwarding interest/request, relay forwarding carrying instruction, distal end UE marks, access way, relaying UE marks, control plane turn Bristle with anger and show, user plane forwarding instruction, forwarded upstream instruction down forwards instruction, uplink and downlink forwarding instruction, UE PC5 polymerizations Maximum Bit Rate；Wherein, access way includes：D2D is accessed, WLAN accesses, BlueTooth accesses.
43. according to the method for claim 41, which is characterized in that the base station is by S1 interfaces from MME acquisitions are described After relevant configuration information, including at least one of：
The base station is established request or bearing modification request message by the carrying of S1 interfaces and is matched from the MME acquisitions relaying correlation Confidence ceases；
Request or UE context modification requests message are established from described in MME acquisitions in the base station by the initial context of S1 interfaces Relay relevant configuration information；
The base station obtains the relaying correlation by the switching request and/or path switching request acknowledgement message of S1 interfaces from MME Configuration information；
The base station obtains the relaying relevant configuration information by the MME configuration transmission message of S1 interfaces from MME.
44. according to the method for claim 41, which is characterized in that the base station is by X2 interface from adjacent/target BS Obtain relaying relevant configuration information, including at least one of：
The base station obtains the relaying relevant configuration by the switching request message of X2 interface from adjacent base station or target BS Information；
The base station establishes request by the X2 of X2 interface or X2 establishes response message from adjacent base station or target BS obtain After relevant configuration information；
The base station obtains relaying relevant configuration by the base station configuration transmission message of X2 interface from adjacent base station or target BS Information.
45. according to the method for claim 41, which is characterized in that the base station is by S1 interfaces from MME acquisitions are described Before relevant configuration information, including：
The MME receives distal end UE or relays the relaying relevant configuration information that UE is sent.
46. according to the method for claim 45, which is characterized in that the method further includes：The distal end UE or relaying UE The relaying relevant configuration information is sent by least one following message：Attach is asked, service request, bearing resource distribution Request, bearing resource modification request.
47. according to the method for claim 40, which is characterized in that held according to the relaying relevant configuration information base station Row processing corresponding with the relaying relevant configuration information, including：
If the base station receives relay forwarding interest or relay forwarding request, the base station is during distal end UE is selected or configured After UE；And/or base station sends relay forwarding carrying to relaying UE and establishes request, base station receives the relay forwarding that relaying UE is sent Response is established in carrying；
If the base station receives relay forwarding carrying instruction, the base station carries instruction according to relay forwarding and distinguishes relaying UE Uu carryings and relaying UE forwarding data Uu carryings, downlink distal end UE data are properly mapped to corresponding Uu and are carried；
If the base station receives at least one of relaying relevant configuration information：Distal end UE marks, access way, relaying UE marks Know, forwarded upstream instruction, down forward instruction, uplink and downlink forwarding instruction, the base station preserves the relaying received Relevant configuration information, and according to different access ways, to distal end UE and/or relaying UE measure configuration, resource distribution and/or Carrying configuration；
If the base station receives UE PC5 aggregate maximum bit rates UE-PC5-AMBR, the base station is according to UE-PC5-AMBR PC5 resource distributions are carried out for distal end UE or relaying UE.
48. according to the method for claim 47, which is characterized in that the method further includes：
After the base station receives the UE-PC5-AMBR, the base station is by RRC dedicated signalings by the UE-PC5- AMBR is sent to distal end UE or relaying UE；
The distal end UE or relaying UE independently select resource to carry out PC5 communications according to the UE-PC5-AMBR.
49. according to the method for claim 47, which is characterized in that
It includes at least one of that request is established in the relay forwarding carrying：The addresses WLANMAC of distal end UE, distal end UE's The E-RAB marks for being expected that by relay forwarding of ProSe UE ID, distal end UE, qos parameter, eNB GTP tunnel destination nodes；With/ Or
It includes at least one of that response message is established in the relay forwarding carrying：Allow to identify by the E-RAB of relay forwarding List, the E-RAB identification lists that refusal passes through relay forwarding.
50. according to the method for claim 47, which is characterized in that the base station sends relay forwarding carrying and establishes request letter After ceasing to UE is relayed, including：
The relaying UE, which carries relay forwarding, establishes in request the E-RAB progress admission controls for being expected that by relay forwarding, in After UE according to the carrying situation of oneself, determine it is no have the established forwarding Uu carryings for meeting QoS demand, and determination allows to connect Receive the forwarding Uu carrying of foundation；
If in the presence of allowing to receive the forwarding Uu carryings established, corresponding EPS carryings are established in relaying UE initiations or the base station receives The relay forwarding carrying that relaying UE is sent is established after response message, and base station sends the configuration information for establishing forwarding Uu carryings in After UE.
51. a kind of communication means of equipment direct communication system relaying, which is characterized in that including：
Base station sends PC5 interface configuration informations to user equipment (UE), wherein the PC5 interface configuration informations are for configuring UE supports Device-to-device D2D communication functions.
52. method according to claim 51, which is characterized in that the PC5 interface configuration informations include it is following at least it One：
Reflecting between PC5 carryings configuration information, PC5 logic channel configuration information of data radio bearer, Uu priority of logical channels and PC5 logic channels Information, PC5 packet priorities and the map information of the service quality rating mark QCI of Uu carryings, relay forwarding instruction is penetrated to believe Breath.
53. method according to claim 51, which is characterized in that the UE includes：Distal end UE and/or relaying UE；Base station Sending PC5 interface configuration informations to UE includes：
The base station sends PC5 to the distal end UE and carries configuration information；And/or
The base station sends PC5 to the relaying UE and carries configuration information；And/or
The base station sends relay forwarding to the distal end UE or described relayings UE and indicates information；And/or the distal end UE is received Map information or PC5 packet priorities between PC5 logic channels group and Uu priority of logical channels that base station is sent and Uu Carry the map information of QCI；And/or
The relaying UE is received between the PC5 logic channels group and Uu priority of logical channels of the distal end UE that base station is sent Map information.
54. method according to claim 51, which is characterized in that the UE includes：Distal end UE and relaying UE；The method Further include：The base station receives the distal end UE marks that the relaying UE is sent；The base station is according to scheduling of resource or distribution condition Determine whether that PC5 carryings are established in the relaying UE receivings.
55. method according to claim 52, which is characterized in that the base station sends PC5 interfaces letter to the distal end UE Before breath, including：
The base station receives the relay forwarding interest indication information that the distal end UE is sent by the proprietary signalings of RRC, wherein relaying It includes at least one of to forward interest indication information：Relay forwarding interest, control plane forwarding instruction, user plane forwarding instruction, Forwarded upstream indicates, down forwards instruction, is expected that by the EPS carrying lists of relay forwarding.
56. method according to claim 53, which is characterized in that the base station sends relay forwarding to the relaying UE and refers to After showing information, the method further includes：
The base station receives the relaying response message that the relaying UE is sent, wherein the relaying response message includes：Relay forwarding Receive information or relay forwarding refusal information, wherein the relay forwarding receives information and includes：Distal end UE's allows to pass through relaying The EPS lists that the EPS lists of forwarding and refusal pass through relay forwarding.
57. method according to claim 51, which is characterized in that when the UE is relaying UE, the base station is to relaying UE sends PC5 interface configuration informations, and the method further includes：
Configuration information is established in the base station to what the relaying UE transmission forwardings Uu was carried；Confidence is matched in the foundation of forwarding Uu carryings Breath includes at least one of：Uu DRB marks, Packet Data Convergence Protocol PDCP configurations, RLC configurations, Logic Channel Identifier, Logic channel configures.
58. a kind of communication device of equipment direct communication system, it is applied to user equipment (UE), which is characterized in that described device includes：
Receiving module, for receiving PC5 interface configuration informations, wherein the PC5 interface configuration informations are for configuring UE holding equipments To equipment D2D communication functions；
Configuration module, for being configured according to the PC5 interface configuration informations.
59. device according to claim 58, which is characterized in that the PC5 interface configuration informations include it is following at least it One：
Reflecting between PC5 carryings configuration information, PC5 logic channel configuration information of data radio bearer, Uu priority of logical channels and PC5 logic channels Information, PC5 packet priorities and the map information of the service quality rating mark QCI of Uu carryings, relay forwarding instruction is penetrated to believe Breath.
60. a kind of communication device of equipment direct communication system is applied to remote user equipment UE, which is characterized in that described device packet It includes：
AM access module, for accessing and/or being connected to relaying UE；
Forwarding module, for forwarding data by the relaying UE.
61. device according to claim 60, which is characterized in that the relaying access side that the distal end UE and relaying UE are supported Formula includes at least one of：Sidelink or PC5 interfaces, WLAN, bluetooth BlueTooth；The distal end UE passes through described Sidelink or PC5 accesses/is connected to relaying UE；Or distal end UE accesses relaying UE by WLAN；Or distal end UE passes through BlueTooth access relayings UE.
62. a kind of communication system, which is characterized in that including：User equipment (UE) and base station, the user equipment, for receiving The PC5 interface configuration informations of base station transmission are stated, and are configured according to the PC5 interface configuration informations, wherein the PC5 connects Mouth configuration information is for configuring UE holding equipments to equipment D2D communication functions.
63. a kind of communication system, which is characterized in that including：Remote user equipment UE and relaying UE, wherein the distal end UE is used UE is relayed in accessing and/or being connected to, and passes through the relaying UE and forwards data.
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