WO2014019510A1 - 用户设备到用户设备的通信方法及设备 - Google Patents

用户设备到用户设备的通信方法及设备 Download PDF

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Publication number
WO2014019510A1
WO2014019510A1 PCT/CN2013/080497 CN2013080497W WO2014019510A1 WO 2014019510 A1 WO2014019510 A1 WO 2014019510A1 CN 2013080497 W CN2013080497 W CN 2013080497W WO 2014019510 A1 WO2014019510 A1 WO 2014019510A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
base station
transmission channel
control information
transmission
Prior art date
Application number
PCT/CN2013/080497
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English (en)
French (fr)
Inventor
王可
尚政
张建伟
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP13825582.3A priority Critical patent/EP2866369A4/en
Publication of WO2014019510A1 publication Critical patent/WO2014019510A1/zh
Priority to US14/600,752 priority patent/US20150133112A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/51Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices
    • H04W88/10Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present application claims to be Chinese patent application filed on July 31, 2012, the Chinese Patent Office, the application number is 201210268817.8, and the invention name is "user equipment to user equipment communication method and equipment" Priority is hereby incorporated by reference in its entirety.
  • the present invention relates to the field of wireless communication technologies, and in particular, to a communication method and device for a user equipment to a user equipment.
  • Traditional cellular mobile communication networks are centrally controlled. Even if two user equipments are in close proximity, communication between user equipments must be performed through the base station and the core network.
  • the centralized control system facilitates resource management and interference control, but has a drawback that is increasingly significant, that is, its resource utilization efficiency is not very high under certain scenarios. For example, even if two UEs are close together, double resources are used for communication, including air interface resources and base station backhaul resources.
  • D2D Device-to-Device communication
  • the user equipment can directly perform data communication with another user equipment while maintaining communication through the base station directly or under the control of the base station, thereby reducing the occupation of air interface resources, improving system throughput, and reducing communication delay. Reduce interference levels and save energy in user equipment.
  • the application scenarios of the user equipment pass-through technology are mostly local service types, such as data multicast services and local file sharing services.
  • the provider of the service such as a concert or other large-scale event organizer, needs to send the same content data to the participants of the assembly, and the organizer can use the D2D communication technology to complete the service instantly and reliably.
  • the user's local data such as files, photos, videos, etc.
  • the user device cluster can also be established through D2D to complete data sharing.
  • D2D can provide services including multiplayer collaborative games, mobile advertising services, dating services, inter-vehicle communications, mobile relays, and the like in a mobile state.
  • the user equipment in the cellular communication system is directly under the control of the base station, and the licensed band resources allocated by the base station are used. Control system interference levels to achieve high data rate user equipment direct communication, but also enjoy the mobility advantages brought by cellular communication systems. In addition, the transparency of D2D communication to user equipment users eliminates the need for cumbersome manual pairing and access point settings in WLAN and Bluetooth, thereby improving user experience and facilitating service promotion.
  • WLANs Wireless Local Area Networks
  • Bluetooth which can support similar services and use unlicensed bands
  • the user equipment in the cellular communication system is directly under the control of the base station, and the licensed band resources allocated by the base station are used. Control system interference levels to achieve high data rate user equipment direct communication, but also enjoy the mobility advantages brought by cellular communication systems.
  • the transparency of D2D communication to user equipment users eliminates the need for cumbersome manual pairing and access point settings in WLAN and Bluetooth, thereby improving user experience and facilitating service promotion.
  • FIG. 1 A typical D2D scenario is shown in Figure 1.
  • the biggest difference between D2D communication and self-organizing network is that although the user's data transmission is directly between user equipments, the management of D2D links. , including the establishment of links, the allocation of resources, etc., are all controlled by the base station. It can be said that the base station control signaling is a necessary condition for completing the D2D transmission.
  • the design of the D2D system will be based on existing standard protocols.
  • the D2D system can be enhanced based on 3GPP Long Term Evolution (LTE/LTE) and LTE-A (Rel-10/11/12 or more). After the version) to design. This is a single standard for networks that support higher-order protocols.
  • LTE/LTE 3GPP Long Term Evolution
  • LTE-A Rel-10/11/12 or more
  • the embodiments of the present invention provide a communication method and a device for a user equipment to a user equipment, which are related to the prior art.
  • the control signaling cannot be transmitted to the user equipment in the heterogeneous network, resulting in the D2D application.
  • a method for communicating a user equipment to a user equipment includes: receiving, by a base station, a device capability indication of the user equipment, where the equipment capability indication indicates that the user equipment supports the capability of the heterogeneous device to pass through the transmission;
  • the base station sends a base station capability indication to the user equipment, where the base station capability indication indicates that the base station supports the capability of the heterogeneous device to pass through;
  • the base station establishes a first transmission channel, where the first transmission channel is established in a standard network supported by the base station serving the user equipment, and is used to transmit the device through control information to the user equipment,
  • the device direct control information is control signaling for controlling data interaction between the user equipment and other user equipments;
  • the base station sends the device through control information to the user equipment by using the first transmission channel, so that the user equipment and the other user equipment perform the transmission of the device through signal according to the device through control information, where the device
  • the pass-through signal is set by the user equipment and other users Data exchanged between backups.
  • a base station in another aspect, includes:
  • a first capability receiving unit configured to receive a device capability indication of the user equipment, where the device capability indication indicates that the user equipment supports the capability of the heterogeneous device to pass through the transmission;
  • a first capability sending unit configured to send a base station capability indication to the user equipment, where the base station capability indication indicates that the base station supports the capability of the heterogeneous device to pass through the transmission;
  • a channel establishing unit configured to establish a first transmission channel, where the first transmission channel is established in a standard network supported by a base station serving the user equipment, and is used to transmit device through control information to the user equipment.
  • the device pass-through control information is control signaling for controlling data interaction between the user equipment and other user equipments;
  • control information transmission unit configured to send device through control information to the user equipment by using the first transmission channel, so that the user equipment and other user equipment perform transmission of the device through signal according to the device through control information
  • the device pass-through signal is data that is exchanged between the user equipment and other user equipments.
  • a method for communicating a user equipment to a user equipment includes:
  • the user equipment performs transmission of a device through signal according to the device through control information, and the device through signal is data that is exchanged between the user equipment and other user equipment.
  • a user equipment is provided, where the user equipment includes:
  • a second capability receiving unit configured to receive a base station capability indication transmitted by the base station, where the base station capability indicator indicates that the base station supports the capability of the heterogeneous device to pass through the transmission;
  • control information receiving unit configured to receive, by using a first transmission channel established by the base station, device pass-through control information sent by the base station, where the first transmission channel is a standard network supported by a base station serving the user equipment Established therein, for transmitting device through control information to the user equipment, where the device direct control information is control signaling for controlling data interaction between the user equipment and other user equipments;
  • the signal transmission unit is configured to perform transmission of the device through signal according to the device through control information, and the device through signal is data exchanged between the user device and other user devices.
  • a wireless communication system being a base station as described above and a user equipment as described above.
  • the base station can establish the first transmission of the device through control information according to the user plane or the control plane of the system in which the user equipment is located. Channels, and transmitting device through control information to the user equipment through the first transmission channel, and the user equipment can communicate according to the device through control information.
  • FIG. 2 is a schematic diagram of a scenario in which multiple types of wireless networks can overlap and overlap;
  • FIG. 3 is a flowchart of an implementation method of a user equipment to a user equipment according to an embodiment of the present invention
  • FIG. 4 and FIG. 5 are respectively schematic diagrams of two application scenarios of a communication method from a user equipment to a user equipment according to an embodiment of the present invention
  • 6 is a flowchart of implementing a communication method of a user equipment to a user equipment according to another embodiment of the present invention
  • FIG. 7 is a structural block diagram of a base station according to still another embodiment of the present invention.
  • FIG. 8 is a structural block diagram of a user equipment according to another embodiment of the present invention.
  • FIG. 3 is a flowchart of an implementation process of a user equipment to a user equipment according to an embodiment of the present invention.
  • the execution scenario of the method may be as shown in FIG. 4 and FIG. 5 respectively, where the base stations in FIG. 4 and FIG. Supports both LTE-A and 2G (GSM)/3G (UMTS) network coverage:
  • the scenario 1 in FIG. 4 is a conventional D2D communication.
  • both UEs performing D2D communication are within the coverage of the LTE-A network, so D2D communication can be implemented according to the indication of the control signaling
  • Scenario 2 is that when both UEs performing D2D communication are in the coverage of the 2G/3G network, when the LTE-A coverage is out, although the signaling of LTE-A cannot be directly transmitted to the UE, because the UE still 2G/3G network range, so 2G/3G network can be used for D2D link control signaling transmission
  • Scene 3 in Figure 4 and scenes 4 and 5 in Figure 5 give some relatively more complex scenarios.
  • the basic idea is to use the other standard network to transmit some control information of D2D, so as to realize D2D transmission under heterogeneous network, where D2D communication is performed in scene 3.
  • One UE is in the coverage of the LTE-A network, and the other UE is in the coverage of the 2G/3G network;
  • one UE in the scenario 4 performing D2D communication is in the coverage of the 2G/3G network of one base station, and the other The UE is in the coverage of the 2G/3G network of another base station;
  • one UE performing D2D communication in scenario 5 is within the coverage of the 2G/3G network of one base station, and the other UE is in the LTE-A network of another base station.
  • the description of the method can be as follows:
  • the base station receives a device capability indication of the user equipment, where the device capability indication indicates that the user equipment supports the capability of the heterogeneous device to transmit through.
  • the user equipment may refer to, for example, a mobile phone, a notebook computer, etc.; and may also refer to other portable devices, such as a tablet computer, a mobile wireless router, etc., and the user equipment is in an LTE/LTE-A or subsequent enhanced protocol version network. Outside the coverage, such as in a 2G/3G/WiFi network.
  • the ability of the user equipment and the base station to support the multi-standard D2D transmission of the multi-standard device is that the user equipment and the base station need to know the capability of the other party to support the direct transmission of the heterogeneous device, thereby supporting the through-transmission mode of the heterogeneous device.
  • the capability of the through-device transmission of the heterogeneous device refers to a user equipment that is not in the LTE/LTE-A or the subsequent enhanced protocol version network, and can directly perform data communication and transmit data to each other.
  • the specific manner of the information of the direct transmission capability of the heterogeneous device between the base station and the user equipment may include:
  • the user equipment sends a device capability indication to the base station through the capability reporting mechanism, and notifies the base station of the capability of the UE to support the through-device transmission of the heterogeneous device, and of course, the indication command sent by the core network (for example, the user subscription information)
  • the base station is notified of the capability of the UE to support the through transmission of the heterogeneous device.
  • the device capability indication may be an explicit independent identifier, or implied, and indicated by other cells capable of characterizing the UE, for example, a multi-standard transmission capability identifier and a multi-standard relay transmission capability identifier.
  • the base station sends a base station capability indication to the user equipment, where the base station capability indication indicates that the base station supports the capability of the heterogeneous device to pass through.
  • the base station can inform each user equipment UE of its ability to support the multi-standard device through transmission by using a broadcast message or a separate dedicated signaling.
  • Such base station capability indications may be explicit independent identifiers, or implicit, indicated by other cells capable of characterizing the UE, such as multi-standard transmission capability identification, multi-standard relay transmission capability identification.
  • S301 and S302 are executed without prioritization.
  • the base station establishes a first transmission channel, where the first transmission channel is established in a standard network supported by a base station serving the user equipment, and is used to transmit device direct control information to the user equipment,
  • the device pass-through control information is control signaling for controlling data interaction between the user equipment and other user equipments.
  • a first transmission channel capable of transmitting D2D control information capable of transmitting D2D transmission capability needs to be established between the base station and each user equipment, according to the situation, first The establishment of the transmission channel may be initiated according to the first indication of the user equipment, or initiated by the base station.
  • the base station may establish a first transmission channel according to a control plane connection, a user plane connection or a wireless connection, and the following discussion is as follows:
  • the other system specifically refers to the network standard in which the user equipment is located, which is a network standard different from the LTE/LTE-A or subsequent enhanced protocol version, including 2G/ 3G, etc.
  • the base station uses a control plane connection channel with the user equipment as the first transmission channel, and uses the first transmission channel to transmit D2D control information, and carries the identifier in the transmitted control signaling, where the identifier And configured to indicate that the control signaling carries the device through control information;
  • the control plane connection is a connection for transmitting signaling, and may also be called a signaling connection.
  • the control plane is connected to one or more bearers on the wireless air interface. These bearers are called Signalling Radio Bearers (SRBs).
  • SRBs Signalling Radio Bearers
  • the other system specifically refers to the network standard in which the user equipment is located, which is a network standard different from the LTE/LTE-A or the subsequent enhanced protocol version, including 2G.
  • the base station creates one or more new user interfaces And selecting a user plane bearer as the first transmission channel from the plurality of new user plane bearers, and indicating the user equipment, where the first transmission channel is used for transmitting the dedicated data radio bearer of the D2D control information (Data Radio Bearer) And DRB), wherein a user plane bearer is selected as the first transmission channel from the plurality of new user plane bearers according to the quality of service QoS requirement and the amount of the interaction signaling data between the base station and the user equipment; or The base station selects a user plane bearer from the one or more user plane bearers of the current user equipment as the first transport channel, and carries the identifier in the data packet transmitted through the first transport channel, where the identifier is used to indicate
  • the data packet carries the device direct control information, which is distinguished from other user plane data of the user equipment UE, where the identifier may be an IP address carried by the data packet, where, according to the quality of service QoS requirement and between the base station and the user
  • the base station of the existing 2G/3G network side may initiate a bearer establishment mechanism to create a new dedicated user plane bearer.
  • the user plane also has one or more bearers on the air interface. These bearers are called user plane bearers, and may also be called Data Radio Bearers (DRBs).
  • DRBs Data Radio Bearers
  • the base station creates one or more new wireless Connecting, selecting one of the plurality of new wireless connections as the first transmission channel; or the base station selecting one of the one or more wireless connections existing in the current user equipment as the first transmission channel, Carrying an identifier in the data packet transmitted by using the existing wireless connection, where the identifier is used to indicate that the data packet carries the device through control information; wherein, according to the quality of service QoS requirement, and the interaction between the base station and the user equipment The size of the data amount is selected from the plurality of new user plane bearers as a first transmission channel.
  • the wireless connection herein may refer to a specific wireless time and frequency resource, such as a channel, a time slot, and the like.
  • the base station sends the device through control information to the user equipment by using the first transmission channel, so that the user equipment and the other user equipment perform the transmission of the device through signal according to the device through control information.
  • the device pass-through signal is data that is exchanged between the user equipment and other user equipment.
  • the pass-through control information can be transmitted to the user equipment through the channel, and the user equipment can be received according to the other user equipment.
  • the device direct control information is used to transmit the device through signal, wherein the device through control information is information for controlling the device to pass the D2D signal transmission in the LTE/LTE-A or the subsequent enhanced protocol version network, including: layer 2 for controlling D2D signal transmission And one or a combination of layer 3 signaling; layer 1 information for controlling D2D signal transmission, including one or a combination of channel quality information, time synchronization information, frequency synchronization information, power information, and scheduling information.
  • Layer 1 refers to the physical layer
  • layer 2 refers to the MAC layer
  • layer 3 refers to the RRC layer.
  • the device through signal refers to data transmitted between each other when data communication is directly performed between user devices.
  • the base station can establish a first transmission channel according to the system in which the user equipment is located, and control the transmission through the first transmission channel.
  • the information is transmitted to the user equipment, and the user equipment can communicate according to the device direct control information.
  • the system in which the user equipment is located can be other standard network different from LTE/LTE-A or a subsequent enhanced protocol version, the present invention
  • the user equipment can support the transmission of the user equipment through signal even if it is in a heterogeneous network different from the LTE/LTE-A or the subsequent enhanced protocol version.
  • FIG. 6 is a flowchart of a method for implementing a communication method from a user equipment to a user equipment according to another embodiment of the present invention.
  • the execution scenario of the method may be as shown in FIG. 4 and FIG. 5 respectively, and may be as follows:
  • step S601 the user The device receives the base station capability indication transmitted by the base station, where the base station capability indication indicates that the base station supports the capability of the heterogeneous device to pass through.
  • the user equipment can know the capability of the base station to support the through transmission of the heterogeneous device.
  • the user equipment sends a first indication to the base station, so that the base station root Establishing a first transmission channel according to the first indication, where the first transmission channel is established in a standard network supported by a base station serving the user equipment, and is used to transmit device through control information to the user equipment.
  • the device direct control information is control signaling for controlling data interaction between the user equipment and other user equipments, where the first indication is a signaling including notifying the base station to establish a first transmission channel.
  • the method may further include the following steps: the user equipment sends a device capability indication to the base station, where the device capability indication indicates that the user equipment supports the capability of the heterogeneous device to pass through.
  • the base station can learn that the user equipment has the capability of supporting the direct transmission of the heterogeneous device.
  • the device capability indicator can also be sent to the base station through the core network, which is not limited herein.
  • step S603 the user equipment receives the device pass-through control information sent by the base station by using the first transmission channel established by the base station.
  • the user equipment sends an indication to the base station.
  • the base station is based on the network standard of the user equipment.
  • the network of the system establishes a first transmission channel, and the device directly transmits control information to the user equipment through the first transmission channel, and the user equipment that receives the direct control information of the device can communicate according to the through control information, where
  • the device pass-through control information is information for controlling device direct-pass D2D signal transmission in an LTE/LTE-A or a subsequent enhanced protocol version network, including: one or a combination of layer 2 and layer 3 signaling for controlling D2D signal transmission Control layer 1 information of D2D signal transmission, including one or a combination of channel quality information, time synchronization information, frequency synchronization information, power information, and scheduling information.
  • Layer 1 refers to the physical layer
  • layer 2 refers to the MAC layer
  • layer 3 refers to the RRC layer.
  • step S604 the user equipment performs transmission of a device through signal according to the device through control information, and the device through signal is data exchanged between the user equipment and other user equipment.
  • the capability of supporting the straight-through transmission of the heterogeneous device is exchanged between the base station and the user equipment.
  • the base station can establish a first transmission channel according to the network in which the user equipment is in the system, and transmit the device through control information to the user equipment through the first transmission channel, and the user equipment can perform the direct control information according to the device.
  • the user equipment is different from the LTE/LTE-A or the subsequent enhanced protocol version, because the user equipment is in a different network than the LTE/LTE-A or the subsequent enhanced protocol version. Under the heterogeneous network, the transmission of the user equipment through signal can still be supported.
  • FIG. 7 is a structural block diagram of a base station according to another embodiment of the present invention.
  • the base station may form a wireless communication system with a user equipment, where the base station includes: a first capability receiving unit 71, and a first The capability transmitting unit 72, the channel establishing unit 73, and the control information transmitting unit 74.
  • the first capability receiving unit 71 is configured to receive a device capability indication of the user equipment, where the device capability indication indicates that the user equipment supports the capability of the heterogeneous device to pass through, and the capability receiving unit 71 receives the user equipment and/or the core.
  • the first capability sending unit 72 is configured to send a base station capability indication to the user equipment, where the base station capability indication indicates that the base station supports the capability of the heterogeneous device to pass through the transmission;
  • a channel establishing unit 73 configured to establish a first transmission channel, where the first transmission channel is established in a standard network supported by a base station serving the user equipment, and used to transmit device through control information to the user
  • the device, the device direct control information is control signaling for controlling data interaction between the user equipment and other user equipment, where the channel establishing unit 73 may establish a first transmission channel according to the indication initiated by the user equipment. Or the base station may initiate the establishment of the first transmission channel by itself;
  • the control information transmission unit 74 is configured to send the device through control information to the user equipment by using the first transmission channel, so that the user equipment and the other user equipment perform the device through signal according to the device through control information.
  • the device pass-through signal is data that is exchanged between the user equipment and other user equipment.
  • the channel establishing unit 73 includes:
  • a first channel establishing module configured to connect a control plane with the user equipment as a first transmission channel, and carry an identifier in the control signaling transmitted by using the first transmission channel, where the identifier is used to indicate The control signaling carries the device through control information.
  • the channel establishing unit 73 includes:
  • a second channel establishing module configured to create one or more new user plane bearers, and select one user plane bearer as the first transmission channel from the plurality of new user plane bearers.
  • the channel establishing unit 73 includes:
  • a third channel establishing module configured to select one user plane bearer from the one or more user plane bearers existing in the current user equipment as the first transmission channel, and carry the identifier in the data packet transmitted through the first transmission channel, The identifier is used to indicate that the data packet carries device through control information.
  • the channel establishing unit 73 includes:
  • a fourth channel establishing module is configured to create one or more new wireless connections, and select one wireless connection from the new wireless connection as the first transmission channel.
  • the channel establishing unit 73 includes:
  • a fifth channel establishing module configured to select one wireless connection from the one or more wireless connections existing in the current user equipment as the first transmission channel, and carry the identifier in the data packet transmitted through the first transmission channel, where The identifier is used to indicate that the device carries the device through control information.
  • FIG. 8 is a structural block diagram of a user equipment according to another embodiment of the present invention.
  • the user equipment may form a wireless communication system with a base station, where the user equipment includes: a second capability receiving unit 81, The information receiving unit 82 and the signal transmitting unit 83 are controlled.
  • the second capability receiving unit 81 is configured to receive a base station capability indication transmitted by the base station, where The base station capability indication indicates that the base station supports the capability of the heterogeneous device to pass through the transmission;
  • the control information receiving unit 82 is configured to receive the device through control information sent by the base station by using the first transmission channel established by the base station, where the first The transmission channel is established in a standard network supported by the base station serving the user equipment, and is used to transmit the device through control information to the user equipment, where the device direct control information is to control the user equipment and other users. Control signaling for data interaction between devices;
  • the signal transmission unit 83 is configured to perform transmission of a device through signal according to the device through control information, and the device through signal is data exchanged between the user device and other user devices.
  • the user equipment further includes: an indication sending unit, configured to send the first indication to the base station, so that the base station establishes the first transmission channel according to the first indication.
  • the user equipment further includes: a second capability sending unit, configured to send a device capability indication to the base station, where the device capability indication indicates that the user equipment supports the capability of the heterogeneous device to pass through.
  • each unit included is only divided according to functional logic, but is not limited to the above division, as long as the corresponding function can be implemented; in addition, the specific name of each functional unit It is also for convenience of distinguishing from each other and is not intended to limit the scope of protection of the present invention.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本发明实施例适用于无线通信技术领域,提供了一种用户设备到用户设备的通信方法及设备,所述方法包括:基站接收用户设备的设备能力指示;发送基站能力指示给用户设备;建立第一传输通道,所述第一传输通道是在为所述用户设备服务的基站所支持的一个制式网络内建立的,用于传输设备直通控制信息至所述用户设备;通过所述第一传输通道发送设备直通控制信息至用户设备,以使所述用户设备与其它用户设备之间根据所述设备直通控制信息进行设备直通信号的传输。

Description

用户设备到用户设备的通信方法及设备 本申请要求于 2012 年 07 月 31 日提交中国专利局、 申请号为 201210268817.8、发明名称为"用户设备到用户设备的通信方法及设备"的中 国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域 本发明涉及无线通讯技术领域, 具体涉及一种用户设备到用户设备的 通信方法及设备。
背景技术 未来无线蜂窝通信网络的必然趋势是高速率、 大容量以及更高的 QoS, 如何有效使用有限的带宽资源实现无线宽带化显得尤为重要。 而当前移动 互联网中迅猛发展的本地业务, 例如视频 /音乐分享, 也迫切需要在现有蜂 窝网中引入新的技术来支持。
传统的蜂窝移动通信网络都是集中式控制的, 即使两个用户设备相邻 很近, 用户设备之间的通信均须通过基站和核心网进行。 集中式控制系统 便于资源管理以及干扰控制, 但有个缺点日渐显著, 即在一定场景下其资 源使用效率不是很高。 比如, 即使两个 UE相距很近, 也要使用双倍的资源 来进行通信, 包括空口资源和基站回传资源。
为了提高空口频谱使用效率, 降低传统蜂窝网的沉重负载, 获得更高 的系统吞吐量, 蜂窝网络下的用户设备直通 ( Device-to-Device communication , D2D )研究日益受到重视。 用户设备可以直接、 或在基站 控制下, 在继续保持通过基站进行的通信的同时, 与另一个用户设备直接 进行数据通信, 从而降低空口资源的占用, 提高系统吞吐率, 还可以减少 通信延时、 降低干扰水平、 节省用户设备能量。 用户设备直通技术的应用场景多为本地服务的类型, 比如数据多播业 务和本地文件共享业务。 在多播数据业务中, 服务的提供者, 如音乐会或 者其他大型活动的组织者, 需要向集会的参与者发送内容相同的数据, 组 织者可以利用 D2D通信技术, 即时可靠地完成服务。 若用户的本地数据(如 文件、 照片、视频等)需要在相邻的用户设备间进行共享时, 也可通过 D2D 建立用户设备集群, 完成数据共享。 此外, D2D可提供的业务还包括移动 状态中的多人协作游戏、 移动广告业务、 交友业务、 车辆间通信、 移动中 继等。
与可以支持相似业务、 使用未授权频段的无线局域网络 (Wireless Local Area Networks, WLAN)、 蓝牙相比, 蜂窝通信系统中的用户设备直通在基 站的控制下, 使用基站分配的授权频带资源, 可以控制系统干扰水平以获 得高数据率的用户设备直接通讯, 还能享受蜂窝通信系统带来的移动性优 势。 加之 D2D通信对用户设备用户的透明性, 其无需在 WLAN及蓝牙中那 样进行繁瑣的手动配对以及接入点设置, 从而提高用户的感受, 便于业务 的推广。
典型的 D2D场景如图 1所示, 从图 1中可以看到, D2D通信区别于自 组织网络最大的区别就是, 虽然用户的数据传输是在用户设备之间直接进 行, 但是 D2D链路的管理, 包括链路的建立、 资源的分配等等都是由基站 控制完成的。 可以说基站控制信令是完成 D2D传输的必要条件。 从标准化的角度来看, D2D系统的设计会基于现有的标准协议, 典型 的来说 D2D系统的可以基于 3GPP长期演进增强 LTE/长期演进增强 LTE-A (Rel-10/11/12或者更后的版本)来设计。 这是一种单一的标准, 适用于支持 高阶协议的网络。
另一方面, 随着技术的进步, 工业界已经开发出了支持多种制式网络 的基站。 在这种基站下, 多种制式的无线网络可以交叠覆盖, 如图 2所示。 用户设备技术也在不断发展, 多模用户设备的问世, 也让用户设备能 够在不同制式的网络之间进行切换。 对 D2D技术而言, 因为它是基于某种 特定的接入技术开发的, 因此只能在对应技术的网络覆盖内进行通信, 以 图 2 为例, 图 2 所示的网络是长期演进高级版 ( Long Term Evolution-Advanced , LTE-A )网络。 当用户处于这种多网络覆盖的场景时, 假设用户移动出了支持 D2D网络的范围, 因为此时基于 LTE-A的 D2D控 制信令无法传递给用户设备,那么用户之间就无法再继续进行 D2D的传输, 这样 D2D通信的应用范围就受到了限制。
发明内容 本发明实施例提供了一种用户设备到用户设备的通信方法及设备, 旨 在解决现有技术在 D2D场景下, 由于控制信令无法传递给异构网络下的用 户设备, 导致 D2D应用范围受限的问题。
一方面, 提供一种用户设备到用户设备的通信方法, 所述方法包括: 基站接收用户设备的设备能力指示, 所述设备能力指示表示用户设备 支持异构设备直通传输的能力;
所述基站发送基站能力指示给所述用户设备, 所述基站能力指示表示 基站支持异构设备直通传输的能力;
所述基站建立第一传输通道, 所述第一传输通道是在为所述用户设备 服务的基站所支持的一个制式网络内建立的, 用于传输设备直通控制信息 至所述用户设备, 所述设备直通控制信息是控制所述用户设备与其它用户 设备之间进行数据交互的控制信令;
所述基站通过所述第一传输通道发送设备直通控制信息至所述用户设 备, 以使所述用户设备与其它用户设备之间根据所述设备直通控制信息进 行设备直通信号的传输, 所述设备直通信号是所述用户设备与其它用户设 备之间交互的数据。
另一方面, 提供一种基站, 所述基站包括:
第一能力接收单元, 用于接收用户设备的设备能力指示, 所述设备能 力指示表示用户设备支持异构设备直通传输的能力;
第一能力发送单元, 用于发送基站能力指示给所述用户设备, 所述基 站能力指示表示基站支持异构设备直通传输的能力;
通道建立单元, 用于建立第一传输通道, 所述第一传输通道是在为所 述用户设备服务的基站所支持的一个制式网络内建立的, 用于传输设备直 通控制信息至所述用户设备, 所述设备直通控制信息是控制所述用户设备 与其它用户设备之间进行数据交互的控制信令;
控制信息传输单元, 用于通过所述第一传输通道发送设备直通控制信 息至所述用户设备, 以使所述用户设备与其它用户设备之间根据所述设备 直通控制信息进行设备直通信号的传输, 所述设备直通信号是所述用户设 备与其它用户设备之间交互的数据。
再一方面, 提供一种用户设备到用户设备的通信方法, 其特征在于, 所述方法包括:
用户设备接收基站传输的基站能力指示, 所述基站能力指示表示所述 基站支持异构设备直通传输的能力;
所述用户设备通过所述基站建立的第一传输通道接收所述基站发送的 设备直通控制信息, 所述第一传输通道是在为所述用户设备服务的基站所 支持的一个制式网络内建立的, 用于传输设备直通控制信息至所述用户设 备, 所述设备直通控制信息是控制所述用户设备与其它用户设备之间进行 数据交互的控制信令;
所述用户设备根据所述设备直通控制信息与其它用户设备之间进行设 备直通信号的传输, 所述设备直通信号是所述用户设备与其它用户设备之 间交互的数据。 另一方面, 提供一种用户设备, 所述用户设备包括:
第二能力接收单元, 用于接收基站传输的基站能力指示, 所述基站能 力指示表示所述基站支持异构设备直通传输的能力;
控制信息接收单元, 用于通过所述基站建立的第一传输通道接收所述 基站发送的设备直通控制信息, 所述第一传输通道是在为所述用户设备服 务的基站所支持的一个制式网络内建立的, 用于传输设备直通控制信息至 所述用户设备, 所述设备直通控制信息是控制所述用户设备与其它用户设 备之间进行数据交互的控制信令;
信号传输单元, 用于根据所述设备直通控制信息与其它用户设备之间 进行设备直通信号的传输, 所述设备直通信号是所述用户设备与其它用户 设备之间交互的数据。
再一方面, 提供一种无线通信系统, 所述无线通信系统如上所述的基 站和如上所述的用户设备。
在本发明实施例中, 在基站和用户设备之间交互支持异构设备直通传 输的能力之后, 基站即可根据用户设备所处制式网络的用户面或者控制面 建立设备直通控制信息的第一传输通道, 并通过所述第一传输通道传输设 备直通控制信息至用户设备, 用户设备之间即可根据所述设备直通控制信 息进行通信。 附图说明 图 1是典型的 D2D场景示意图;
图 2是多种制式的无线网络可以交叠覆盖时的场景示意图;
图 3是本发明一实施例提供的用户设备到用户设备的通信方法的实现 流程图;
图 4和图 5分别是本发明一实施例提供的用户设备到用户设备的通信 方法的两种应用场景示意图; 图 6是本发明又一实施例提供的用户设备到用户设备的通信方法的实 现流程图;
图 7是本发明再一实施例提供的基站的结构框图;
图 8是本发明又一实施例提供的用户设备的结构框图。
具体实施方式 为了使本发明的目的、 技术方案及优点更加清楚明白, 以下结合附图 及实施例, 对本发明进行进一步详细说明。 应当理解, 此处所描述的具体 实施例仅仅用以解释本发明, 并不用于限定本发明。
在本发明实施例中, 在基站和用户设备之间交互支持异构设备直通传 输的能力之后, 基站即可根据用户设备所处制式网络的用户面或者控制面 建立第一传输通道, 并通过所述第一传输通道传输设备直通控制信息至用 户设备, 用户设备之间即可根据所述设备直通控制信息进行通信。 图 3示出了本发明一实施例提供的用户设备到用户设备的通信方法的 实现流程, 具体该方法的执行场景可以分别如图 4和 5所示, 其中, 图 4和图 5中的基站同时支持 LTE-A和 2G(GSM)/3G(UMTS)网络的覆盖:
其中, 图 4中的场景 1为传统的 D2D通信, 此时进行 D2D通信的两个 UE 都在 LTE-A网络的覆盖范围内, 所以根据控制信令的指示, 可以实现 D2D 的通信; 图 4中的场景 2为当进行 D2D通信的两个 UE均处于 2G/3G网络的覆 盖范围内, 在 LTE-A覆盖范围外时, 虽然 LTE-A的信令无法直接传递给 UE, 但是因为 UE仍 2G/3G的网络范围内,所以可以利用 2G/3G网络来进行 D2D链 路控制信令的传输; 图 4中的场景 3以及图 5中的场景 4和 5给出了一些相对更 复杂的场景, 但基本上的思路都是利用其他制式的网络来传输 D2D的一些 控制信息, 从而实现异构网络下的 D2D传输, 其中, 场景 3中进行 D2D通信 的一个 UE处于 LTE-A网络的覆盖范围内, 另一个 UE处于 2G/3G网络的覆盖 范围内; 场景 4中进行 D2D通信的一个 UE处于一个基站的 2G/3G网络的覆盖 范围内, 另一个 UE处于另一个基站的 2G/3G网络的覆盖范围内; 场景 5中进 行 D2D通信的一个 UE处于一个基站的 2G/3G网络的覆盖范围内, 另一个 UE 处于另一个基站的 LTE-A网络的覆盖范围内, 其中, 图 4和图 5中的标号 1-5 分别表示场景 1至场景 5 , 该方法的描述可以如下:
5301 , 基站接收用户设备的设备能力指示, 所述设备能力指示表示用 户设备支持异构设备直通传输的能力。
在本实施例中, 用户设备可以指比如手机, 笔记本电脑等; 也可以指 其它便携设备, 比如平板电脑, 移动无线路由器等, 并且所述用户设备处 于 LTE/LTE-A或后续增强协议版本网络的覆盖范围之外, 比如处于 2G/3G/WiFi网络中。 用户设备和基站之间交互支持多制式设备直通的多制 式 D2D传输的能力, 即用户设备和基站之间需要知道对方能够支持异构设 备直通传输的能力, 从而可以支持异构设备直通传输模式。 其中, 所述异 构设备直通传输的能力是指处于非 LTE/LTE-A或后续增强协议版本网络的 用户设备之间, 可以直接进行数据通信, 互相传输数据至对方。
基站和用户设备之间交互异构设备直通传输能力的信息的具体方式可 以包括:
用户设备(User Equipment, UE )通过能力上报机制, 发送设备能力指 示至基站, 通知基站该 UE支持异构设备直通传输的能力, 当然, 也可以通 过核心网发送的指示命令 (譬如, 用户签约信息)通知基站该 UE支持异构设 备直通传输的能力。 其中, 所述设备能力指示可以是显式的独立标识, 或 者是隐含的, 由其他能够表征该 UE能力的信元来指示, 比如, 多制式传输 能力标识、 多制式中继传输能力标识。
5302 , 所述基站发送基站能力指示给所述用户设备, 所述基站能力指 示表示所述基站支持异构设备直通传输的能力。 在本实施例中, 基站可以通过广播消息, 或单独的专用信令来告诉各 个用户设备 UE其支持多制式设备直通传输的能力。这种基站能力指示可以 是显式的独立标识,或者是隐含的, 由其他能够表征该 UE能力的信元来指 示, 比如, 多制式传输能力标识、 多制式中继传输能力标识。
其中, 需要说明的是, S301和 S302执行时没有先后次序之分。
S303 , 所述基站建立第一传输通道, 所述第一传输通道是在为所述用 户设备服务的基站所支持的一个制式网络内建立的, 用于传输设备直通控 制信息至所述用户设备, 所述设备直通控制信息是控制所述用户设备与其 它用户设备之间进行数据交互的控制信令。
在本实施例中,如果需要发起支持 D2D传输能力的 D2D信号传输,需要 在基站和各个用户设备之间建立起可以传输支持 D2D传输能力的 D2D控制 信息的第一传输通道, 根据情况, 第一传输通道的建立可以根据用户设备 的第一指示发起建立, 或者由基站发起建立。 其中, 基站可以根据控制面 连接、 用户面连接或者无线连接来建立第一传输通道, 下面分情况讨论:
1、 如果通过其他制式网络的控制面传输 D2D控制信息, 其他制式具 体是指用户设备所处的网络的制式, 其是不同于 LTE/LTE-A或后续增强协 议版本的网络制式, 包括 2G/3G等, 则所述基站将与用户设备之间的控制 面连接通道作为第一传输通道, 利用所述第一传输通道来传输 D2D控制信 息, 在传输的控制信令中携带标识, 所述标识用于指示所述控制信令中携 带设备直通控制信息;
其中, 控制面连接即用于传输信令的连接, 也可以称为信令连接。 控 制面连接在无线空口上对应 1个或多个承载, 这些承载叫做信令无线承载 或简称信令 7 载 ( Signalling Radio Bearer, SRB ) 。
2、 如果是通过其他制式网络的用户面传输 D2D控制信息, 其他制式具 体是指用户设备所处的网络的制式, 其是不同于 LTE/LTE-A或后续增强协 议版本的网络制式, 包括 2G/3G, 则所述基站创建一个或多个新的用户面承 载, 从所述多个新的用户面承载中选择一个用户面承载作为第一传输通道, 并且指示用户设备, 所述第一传输通道用于传输 D2D控制信息的专用数据 无线承载(Data Radio Bearer, DRB ) , 其中, 根据服务质量 QoS要求和基 站与用户设备之间交互信令数据量的大小从所述多个新的用户面承载中选 择一个用户面承载作为第一传输通道; 或者, 所述基站从当前用户设备已 有的一个或多个用户面承载中选择一个用户面承载作为第一传输通道, 在 通过所述第一传输通道传输的数据包中携带标识, 所述标识用于指示所述 数据包中携带设备直通控制信息,以和用户设备 UE的其他用户面数据区分, 这里的标识可以是数据包所携带的 IP地址, 其中, 根据服务质量 QoS要求和 基站与用户设备之间交互信令数据量的大小从所述多个新的用户面承载中 选择一个用户面承载作为第一传输通道。
其中,具体可以沿用现有 2G/3G的网络侧的基站发起承载建立的机制来 创建新的专用用户面承载。
其中,用户面在空口上也有 1个或多个承载,这些承载叫做用户面承载, 也可以称为数据无线 载(Data Radio Bearer, DRB ) 。
3、对于那些在无线空口不区分控制面和用户面的网络制式, 譬如 GSM 网络或者 WiFi/WiMAX等等, 当用户设备处于所述网络制式下时,所述基站 创建一个或多个新的无线连接, 从所述多个新的无线连接中选择一个无线 连接作为第一传输通道; 或者所述基站从当前用户设备已有的一个或多个 无线连接中选择一个无线连接作为第一传输通道, 在通过所述已有的无线 连接传输的数据包中携带标识, 所述标识用于指示所述数据包中携带设备 直通控制信息; 其中,根据服务质量 QoS要求和基站与用户设备之间交互信 令数据量的大小从所述多个新的用户面承载中选择一个用户面承载作为第 一传输通道。
其中, 这里的无线连接可以指特定的无线时间和频率资源, 譬如信道, 时隙等。 S304, 所述基站通过所述第一传输通道发送设备直通控制信息至所述 用户设备, 以使所述用户设备与其它用户设备之间根据所述设备直通控制 信息进行设备直通信号的传输, 所述设备直通信号是所述用户设备与其它 用户设备之间交互的数据。
在本实施例中, 基站与用户设备之间建立好传输直通控制信息的通道 后, 即可通过该通道传输直通控制信息至用户设备, 该用户设备可以和其 它用户设备之间即可根据接收到的设备直通控制信息进行设备直通信号的 传输, 其中, 设备直通控制信息是在 LTE/LTE-A或后续增强协议版本网络 中控制设备直通 D2D信号传输的信息, 包括: 控制 D2D信号传输的层 2、层 3 信令中的 1个或组合; 控制 D2D信号传输的层 1信息, 包括信道质量信息、 时间同步信息、 频率同步信息、 功率信息、 以及调度信息等信息中的 1个或 组合。 其中, 层 1是指物理层, 层 2是指 MAC层; 层 3是 RRC层。 其中, 设备 直通信号是指在用户设备之间直接进行数据通信时, 相互之间传输的数据。
本实施例, 在基站和用户设备之间交互支持异构设备直通传输的能力 之后, 基站即可根据用户设备所处制式网络建立第一传输通道, 并通过所 述第一传输通道传输设备直通控制信息至用户设备, 用户设备之间即可根 据所述设备直通控制信息进行通信, 由于用户设备所处制式网络可以是不 同于 LTE/LTE-A或后续增强协议版本的其他制式网络,因此本发明实施例, 用户设备即使处于不同于 LTE/LTE-A或后续增强协议版本的异构网络下, 仍然能够支持用户设备直通信号的传输。
图 6示出了本发明又一实施例提供的用户设备到用户设备的通信方法 的实现流程, 具体该方法的执行场景可以分别如图 4和 5所示, 可以如下: 在步骤 S601中, 用户设备接收基站传输的基站能力指示, 所述基站能 力指示表示所述基站支持异构设备直通传输的能力。
通过步骤 S601用户设备可以得知基站支持异构设备直通传输的能力。 在步骤 S602中, 所述用户设备发送第一指示至基站, 以使所述基站根 据所述第一指示建立第一传输通道, 所述第一传输通道是在为所述用户设 备服务的基站所支持的一个制式网络内建立的, 用于传输设备直通控制信 息至所述用户设备 , 所述设备直通控制信息是控制所述用户设备与其它用 户设备之间进行数据交互的控制信令, 其中, 所述第一指示是包括通知所 述基站建立第一传输通道的信令。
作为本发明的一个实施例, 在步骤 S602之前, 还可以包括下述步骤: 所述用户设备发送设备能力指示至所述基站, 所述设备能力指示表示 用户设备支持异构设备直通传输的能力。 通过该步骤基站可以获知所述用 户设备具备支持异构设备直通传输的能力, 其中, 通过核心网也可以发送 设备能力指示至所述基站, 在此不做限制。
在步骤 S603中, 所述用户设备通过所述基站建立的第一传输通道接收 所述基站发送的设备直通控制信息。
在本实施例中, 基站和用户设备之间得知对方支持异构设备直通传输 的能力后, 用户设备发送指示给基站, 基站接收到该指示后, 根据用户设 备所处的网络的制式, 基于该制式的网络建立第一传输通道, 通过所述第 一传输通道传输设备直通控制信息至用户设备, 接收到该设备直通控制信 息的用户设备之间即可根据所述直通控制信息进行通信, 其中, 所述设备 直通控制信息是在 LTE/LTE-A或后续增强协议版本网络中控制设备直通 D2D信号传输的信息, 包括: 控制 D2D信号传输的层 2、 层 3信令中的 1 个或组合; 控制 D2D信号传输的层 1信息, 包括信道质量信息、 时间同步 信息、 频率同步信息、 功率信息、 以及调度信息等信息中的 1 个或组合。 其中, 层 1是指物理层, 层 2是指 MAC层; 层 3是 RRC层。
在步骤 S604中, 所述用户设备根据所述设备直通控制信息与其它用户 设备之间进行设备直通信号的传输, 所述设备直通信号是所述用户设备与 其它用户设备之间交互的数据。
本实施例, 在基站和用户设备之间交互支持异构设备直通传输的能力 之后, 基站即可根据用户设备所处制式的网络建立第一传输通道, 并通过 所述第一传输通道传输设备直通控制信息至用户设备, 用户设备之间即可 根据所述设备直通控制信息进行通信, 由于用户设备所处制式网络可以是 不同于 LTE/LTE-A或后续增强协议版本的其他制式网络, 因此本发明实施 例, 用户设备即使处于不同于 LTE/LTE-A或后续增强协议版本的异构网络 下, 仍然能够支持用户设备直通信号的传输。
图 7示出了本发明再一实施例提供的基站的结构框图, 在本实施例中, 所述基站可以和用户设备构成无线通信系统, 所述基站包括: 第一能力接 收单元 71、 第一能力发送单元 72、 通道建立单元 73和控制信息传输单元 74。
其中, 第一能力接收单元 71 , 用于接收用户设备的设备能力指示, 所 述设备能力指示表示用户设备支持异构设备直通传输的能力, 所述能力接 收单元 71 接收由用户设备和 /或核心网传输至所述基站的用户设备的设备 能力指示;
第一能力发送单元 72, 用于发送基站能力指示给所述用户设备, 所述 基站能力指示表示基站支持异构设备直通传输的能力;
通道建立单元 73 , 用于建立第一传输通道, 所述第一传输通道是在为 所述用户设备服务的基站所支持的一个制式网络内建立的, 用于传输设备 直通控制信息至所述用户设备, 所述设备直通控制信息是控制所述用户设 备与其它用户设备之间进行数据交互的控制信令, 其中, 所述通道建立单 元 73可以根据所述用户设备发起的指示建立第一传输通道, 或者所述基站 可以自行发起建立第一传输通道;
控制信息传输单元 74, 用于通过所述第一传输通道发送设备直通控制 信息至所述用户设备, 以使所述用户设备与其它用户设备之间根据所述设 备直通控制信息进行设备直通信号的传输, 所述设备直通信号是所述用户 设备与其它用户设备之间交互的数据。 具体的, 所述通道建立单元 73包括:
第一通道建立模块, 用于将与所述用户设备之间的控制面连接作为第 一传输通道, 在通过所述第一传输通道传输的控制信令中携带标识, 所述 标识用于指示所述控制信令中携带设备直通控制信息。
具体的, 所述通道建立单元 73包括:
第二通道建立模块, 用于创建一个或多个新的用户面承载, 从所述多 个新的用户面承载中选择一个用户面承载作为第一传输通道。
具体的, 所述通道建立单元 73包括:
第三通道建立模块, 用于从当前用户设备已有的一个或多个用户面承 载中选择一个用户面承载作为第一传输通道, 在通过所述第一传输通道传 输的数据包中携带标识, 所述标识用于指示所述数据包中携带设备直通控 制信息。
具体的, 所述通道建立单元 73包括:
第四通道建立模块, 用于创建一个或多个新的无线连接, 从所述新的 无线连接中选择一个无线连接作为第一传输通道。
具体的, 所述通道建立单元 73包括:
第五通道建立模块, 用于从当前用户设备已有的一个或多个无线连接 中选择一个无线连接作为第一传输通道, 在通过所述第一传输通道传输的 数据包中携带标识, 所述标识用于指示所述数据包中携带设备直通控制信 息。
具体基站中各个单元的执行情况, 可参见图 3 所示的方法中的描述, 在此不再赘述。
图 8示出了本发明又一实施例提供的用户设备的结构框图, 在本实施 例中, 所述用户设备可以和基站构成无线通信系统, 所述用户设备包括: 第二能力接收单元 81、 控制信息接收单元 82和信号传输单元 83。
其中, 第二能力接收单元 81 , 用于接收基站传输的基站能力指示, 所 述基站能力指示表示所述基站支持异构设备直通传输的能力; 控制信息接收单元 82, 用于通过所述基站建立的第一传输通道接收所 述基站发送的设备直通控制信息, 所述第一传输通道是在为所述用户设备 服务的基站所支持的一个制式网络内建立的, 用于传输设备直通控制信息 至所述用户设备, 所述设备直通控制信息是控制所述用户设备与其它用户 设备之间进行数据交互的控制信令;
信号传输单元 83 , 用于根据所述设备直通控制信息与其它用户设备之 间进行设备直通信号的传输, 所述设备直通信号是所述用户设备与其它用 户设备之间交互的数据。
进一步, 所述用户设备还包括: 指示发送单元, 该单元用于发送第一 指示至基站, 以使所述基站根据所述第一指示建立第一传输通道。
进一步地, 所述用户设备还包括: 第二能力发送单元, 该单元用于发 送设备能力指示至所述基站, 所述设备能力指示表示用户设备支持异构设 备直通传输的能力。
具体用户设备中各个单元的执行情况, 可参见图 6所示的方法中的描 述, 在此不再赘述。
值得注意的是, 上述系统实施例中, 所包括的各个单元只是按照功能 逻辑进行划分的, 但并不局限于上述的划分, 只要能够实现相应的功能即 可; 另外, 各功能单元的具体名称也只是为了便于相互区分, 并不用于限 制本发明的保护范围。
另外, 本领域普通技术人员可以理解实现上述各实施例方法中的全部 或部分步骤是可以通过程序来指令相关的硬件来完成, 相应的程序可以存 储于一计算机可读取存储介质中, 所述的存储介质, 如 ROM/RAM、 磁盘 或光盘等。
以上所述仅为本发明的实施例而已, 并不用以限制本发明, 凡在本发 明的精神和原则之内所作的任何修改、 等同替换和改进等, 均应包含在本
发明的保护范围之内

Claims

权利要求
1、一种用户设备到用户设备的通信方法,其特征在于, 所述方法包括: 基站接收用户设备的设备能力指示, 所述设备能力指示表示用户设备 支持异构设备直通传输的能力;
所述基站发送基站能力指示给所述用户设备, 所述基站能力指示表示 基站支持异构设备直通传输的能力;
所述基站建立第一传输通道, 所述第一传输通道是在为所述用户设备 服务的基站所支持的一个制式网络内建立的, 用于传输设备直通控制信息 至所述用户设备, 所述设备直通控制信息是控制所述用户设备与其它用户 设备之间进行数据交互的控制信令;
所述基站通过所述第一传输通道发送设备直通控制信息至所述用户设 备, 以使所述用户设备与其它用户设备之间根据所述设备直通控制信息进 行设备直通信号的传输, 所述设备直通信号是所述用户设备与其它用户设 备之间交互的数据。
2、 如权利要求 1所述的方法, 其特征在于, 所述基站建立第一传输通 道包括:
所述基站根据所述用户设备发起的第一指示建立第一传输通道, 或者 所述基站发起建立第一传输通道。
3、 如权利要求 2所述的方法, 其特征在于, 所述基站根据所述用户设 备发起的指示建立第一传输通道, 或者所述基站发起建立第一传输通道具 体为:
所述基站将与用户设备之间的控制面连接作为第一传输通道, 在通过 所述第一传输通道传输的控制信令中携带标识, 所述标识用于指示所述控 制信令中携带设备直通控制信息。
4、 如权利要求 2所述的方法, 其特征在于, 所述基站根据所述用户设 备发起的指示建立第一传输通道, 或者所述基站发起建立第一传输通道具 体为:
所述基站创建一个或多个新的用户面承载, 从所述多个新的用户面承 载中选择一个用户面承载作为第一传输通道; 或所述基站从当前用户设备 已有的一个或多个用户面承载中选择一个用户面承载作为第一传输通道, 在通过所述第一传输通道传输的数据包中携带标识, 所述标识用于指示所 述数据包中携带设备直通控制信息。
5、 如权利要求 2所述的方法, 其特征在于, 所述基站根据所述用户设 备发起的指示建立第一传输通道, 或者所述基站发起建立第一传输通道具 体为:
所述基站创建一个或多个新的无线连接, 从所述新的无线连接中选择 一个无线连接作为第一传输通道; 或所述基站从当前用户设备已有的一个 或多个无线连接中选择一个无线连接作为第一传输通道, 在通过所述第一 传输通道传输的数据包中携带标识, 所述标识用于指示所述数据包中携带 设备直通控制信息。
6、 如权利要求 1-5任一项所述的方法, 其特征在于, 所述基站接收用 户设备的设备能力指示包括:
所述基站接收由用户设备和 /或核心网传输至所述基站的用户设备的设 备能力指示。
7、 一种基站, 其特征在于, 所述基站包括:
第一能力接收单元, 用于接收用户设备的设备能力指示, 所述设备能 力指示表示用户设备支持异构设备直通传输的能力;
第一能力发送单元, 用于发送基站能力指示给所述用户设备, 所述基 站能力指示表示基站支持异构设备直通传输的能力;
通道建立单元, 用于建立第一传输通道, 所述第一传输通道是在为所 述用户设备服务的基站所支持的一个制式网络内建立的, 用于传输设备直 通控制信息至所述用户设备, 所述设备直通控制信息是控制所述用户设备 与其它用户设备之间进行数据交互的控制信令;
控制信息传输单元, 用于通过所述第一传输通道发送设备直通控制信 息至所述用户设备, 以使所述用户设备与其它用户设备之间根据所述设备 直通控制信息进行设备直通信号的传输, 所述设备直通信号是所述用户设 备与其它用户设备之间交互的数据。
8、 如权利要求 7所述的基站, 其特征在于, 所述通道建立单元根据所 述用户设备发起的第一指示建立第一传输通道, 或者所述基站发起建立第 一传输通道。
9、 如权利要求 8所述的基站, 其特征在于, 所述通道建立单元包括: 第一通道建立模块, 用于将与所述用户设备之间的控制面连接作为第 一传输通道, 在通过所述第一传输通道传输的控制信令中携带标识, 所述 标识用于指示所述控制信令中携带设备直通控制信息。
10、 如权利要求 8所述的基站, 其特征在于, 所述通道建立单元包括: 第二通道建立模块, 用于创建一个或多个新的用户面承载, 从所述多 个新的用户面承载中选择一个用户面承载作为第一传输通道。
11、 如权利要求 8所述的基站, 其特征在于, 所述通道建立单元包括: 第三通道建立模块, 用于从当前用户设备已有的一个或多个用户面承 载中选择一个用户面承载作为第一传输通道, 在通过所述第一传输通道传 输的数据包中携带标识, 所述标识用于指示所述数据包中携带设备直通控 制信息。
12、 如权利要求 8所述的基站, 其特征在于, 所述通道建立单元包括: 第四通道建立模块, 用于创建一个或多个新的无线连接, 从所述新的 无线连接中选择一个无线连接作为第一传输通道。
13、 如权利要求 8所述的基站, 其特征在于, 所述通道建立单元包括: 第五通道建立模块, 用于从当前用户设备已有的一个或多个无线连接 中选择一个无线连接作为第一传输通道, 在通过所述第一传输通道传输的 数据包中携带标识, 所述标识用于指示所述数据包中携带设备直通控制信 息。
14、 如权利要求 8-13任一项所述的基站, 其特征在于, 所述第一能力 接收单元接收由用户设备和 /或核心网传输至所述基站的用户设备的设备能 力指示。
15、 一种用户设备到用户设备的通信方法, 其特征在于, 所述方法包 括:
用户设备接收基站传输的基站能力指示, 所述基站能力指示表示所述 基站支持异构设备直通传输的能力;
所述用户设备通过所述基站建立的第一传输通道接收所述基站发送的 设备直通控制信息, 所述第一传输通道是在为所述用户设备服务的基站所 支持的一个制式网络内建立的, 用于传输设备直通控制信息至所述用户设 备, 所述设备直通控制信息是控制所述用户设备与其它用户设备之间进行 数据交互的控制信令;
所述用户设备根据所述设备直通控制信息与其它用户设备之间进行设 备直通信号的传输, 所述设备直通信号是所述用户设备与其它用户设备之 间交互的数据。
16、 如权利要求 15所述的方法, 其特征在于, 在所述用户设备通过所 述基站建立的第一传输通道接收所述基站发送的设备直通控制信息之前, 所述方法还包括:
所述用户设备发送第一指示至基站, 以使所述基站根据所述第一指示 建立第一传输通道。
17、 如权利要求 15或 16所述的方法, 其特征在于, 在所述用户设备 通过所述基站建立的第一传输通道接收所述基站发送的设备直通控制信息 之前, 所述方法还包括:
所述用户设备发送设备能力指示至所述基站, 所述设备能力指示表示 用户设备支持异构设备直通传输的能力。
18、 一种用户设备, 其特征在于, 所述用户设备包括:
第二能力接收单元, 用于接收基站传输的基站能力指示, 所述基站能 力指示表示所述基站支持异构设备直通传输的能力;
控制信息接收单元, 用于通过所述基站建立的第一传输通道接收所述 基站发送的设备直通控制信息, 所述第一传输通道是在为所述用户设备服 务的基站所支持的一个制式网络内建立的, 用于传输设备直通控制信息至 所述用户设备, 所述设备直通控制信息是控制所述用户设备与其它用户设 备之间进行数据交互的控制信令;
信号传输单元, 用于根据所述设备直通控制信息与其它用户设备之间 进行设备直通信号的传输, 所述设备直通信号是所述用户设备与其它用户 设备之间交互的数据。
19、 如权利要求 18所述的用户设备, 其特征在于, 所述用户设备还包 括:
指示发送单元, 用于发送第一指示至基站, 以使所述基站根据所述第 一指示建立第一传输通道。
20、 如权利要求 17或 18所述的用户设备, 其特征在于, 所述用户设 备还包括:
第二能力发送单元, 用于发送设备能力指示至所述基站, 所述设备能 力指示表示用户设备支持异构设备直通传输的能力。
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