WO2016192164A1 - 一种终端直连通信方法及装置 - Google Patents

一种终端直连通信方法及装置 Download PDF

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Publication number
WO2016192164A1
WO2016192164A1 PCT/CN2015/082967 CN2015082967W WO2016192164A1 WO 2016192164 A1 WO2016192164 A1 WO 2016192164A1 CN 2015082967 W CN2015082967 W CN 2015082967W WO 2016192164 A1 WO2016192164 A1 WO 2016192164A1
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Prior art keywords
search
relay
signaling
search signaling
identifier
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PCT/CN2015/082967
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English (en)
French (fr)
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张晨璐
雷艺学
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宇龙计算机通信科技(深圳)有限公司
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Publication of WO2016192164A1 publication Critical patent/WO2016192164A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22Communication 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

Definitions

  • the present invention relates to the field of communications technologies, and more particularly to a terminal direct connection communication method and apparatus.
  • D2D (Device-to-Device) is a short-distance communication service. Direct communication between devices can realize direct transmission of data between terminals without forwarding through the base station. Therefore, D2D services can be improved. Transfer rate, reduced transmission time, and reduced energy consumption. For some near-field communication or public safety events, D2D services are more efficient.
  • the R12 protocol of the LTE (Long Term Evolution) system provides two functions of D2D, namely, a search function and a communication function, wherein the search function is supported in various application scenarios (for example, a public security scenario).
  • the sender terminal can search for a receiver terminal that also has D2D capability.
  • the existing D2D search function is limited to single-hop search, if the distance between the sender terminal and the receiver terminal is too long, or the environment in which the sender terminal and the receiver terminal are located is complicated, such as in a basement or a collapsed building. It may cause the sender terminal to not search for the receiver terminal, which greatly affects the user's use experience and may even endanger the user's personal safety.
  • the present invention provides a terminal direct connection communication method and apparatus, to overcome the D2D search function in the prior art, which is limited to single-hop search, if the distance between the sender terminal and the receiver terminal is far, or The environment in which the sender terminal and the receiver terminal are located is relatively complicated. For example, in a basement or a collapsed building, the sender terminal may not search for the receiver terminal, which greatly affects the user. The use of feelings can even endanger the user's personal safety.
  • the present invention provides the following technical solutions:
  • the present invention discloses a terminal direct connection communication method, which receives search signaling sent by a sender terminal, where the search signaling includes a relay transmission identifier and a relay. a node identifier; the relay transmission identifier is used to indicate whether the search signaling is allowed to be forwarded; and determining whether the relay transmission identifier in the search signaling indicates that the search signaling is allowed to be relayed; If yes, determining whether the relay node identifier in the search signaling matches an identifier parameter of a relay node included in the search filter that allows forwarding of the search signaling; if matching, the search is performed The signaling is forwarded to the receiver terminal.
  • the multi-hop search of the D2D search function is implemented by relaying the search signaling, thereby enhancing the ability of the sender terminal to search for the receiver terminal in various scenarios, improving the user experience and ensuring the personal safety of the user.
  • the present invention also discloses a terminal direct communication device.
  • FIG. 1 is a schematic structural diagram of a relay-based D2D search protocol stack according to an embodiment of the present invention
  • Embodiment 1 is a schematic flowchart of Embodiment 1 of a method for directly connecting a terminal according to the present disclosure
  • Embodiment 3 is a schematic flowchart of Embodiment 2 of a method for directly connecting a terminal according to the present disclosure
  • Embodiment 4 is a schematic flowchart of Embodiment 3 of a method for directly connecting a terminal according to the present disclosure
  • FIG. 5 is a schematic structural diagram of Embodiment 1 of a terminal direct communication device according to the present disclosure.
  • the D2D search function in the prior art is limited to single-hop search. If the distance between the sender terminal and the receiver terminal is long, or the environment in which the sender terminal and the receiver terminal are located is complicated, In a basement or a collapsed building, the sender terminal may not be able to search for the receiver terminal, which greatly affects the user's experience and may even endanger the user's personal safety.
  • the present invention discloses a terminal direct connection communication method, which receives search signaling sent by a sender terminal, where the search signaling includes a relay transmission identifier and a relay node identifier; Determining whether the search signaling is allowed to be forwarded; determining whether the relay transmission identifier in the search signaling indicates that the search signaling is allowed to be forwarded; if yes, determining the search signaling Whether the relay node identifier matches an identifier parameter of a relay node included in the search filter that allows forwarding of the search signaling; if so, forwarding the search signaling to the recipient terminal.
  • the multi-hop search of the D2D search function is implemented by relaying the search signaling, thereby enhancing the ability of the sender terminal to search for the receiver terminal in various scenarios, improving the user experience and ensuring the personal safety of the user.
  • the present invention also discloses a terminal direct communication device.
  • a relay-based D2D search protocol stack structure is first defined. Specifically, as shown in FIG. 1, in the relay-based D2D search protocol stack structure of the present invention, a relay function logic layer is defined (FIG. 1).
  • the relay function logic layer may be a function enhancement or an independent sublayer performed on the current MAC layer or the ProSe Protocol layer. Further, the relay function logic layer may also It is an enhancement of any new sub-layer or any sub-layer function below the MAC layer and below the ProSe Protocol layer. In this regard, the invention is not limited in any way.
  • the present invention discloses the following Terminal direct connection communication method and device.
  • Embodiment 1 is a schematic flowchart of Embodiment 1 of a method for directly connecting a terminal according to the present invention.
  • the method is applied to a relay terminal, and the relay terminal may be a mobile terminal having a relay function.
  • This embodiment does not impose any limitation.
  • the method specifically includes the following steps:
  • S101 Receive search signaling sent by the sender terminal, where the search signaling includes a relay transmission identifier and a relay node identifier.
  • the relay transmission identifier is used to indicate whether the search signaling is allowed to be relayed.
  • the sender terminal determines whether the search signaling sent by the sender terminal is allowed to be relayed according to the subscription data of the sender terminal and/or other high layer information (such as the power of the sender terminal).
  • the 1 bit information bit is used for the identification in the search signaling, and the 1 bit information bit is the relay transmission identifier. Specifically, the 1 identifier can be used for relay forwarding, and the 0 flag is not allowed to be forwarded by the relay.
  • the 1 bit information bit can be It is a new information bit, and it can also be a reserved information bit in the existing search signaling format.
  • the sender terminal also needs to send a search request to the network side, and the network side will feed back the relay node identifier according to the search request of the sender terminal. After receiving the relay node identifier fed back by the network side, the sender terminal can place the relay node identifier in the search signaling and send it through the PC5 interface.
  • this step it may be specifically determined whether the information bit in the search signaling is 1 to determine whether the relay transmission identifier in the search signaling indicates that the search signaling is allowed to be forwarded.
  • the information bit in the search signaling is 1 to determine whether the relay transmission identifier in the search signaling indicates that the search signaling is allowed to be forwarded.
  • the relay terminal acquires a search filter from the network side in advance, and the search filter includes an identifier parameter of a relay node that allows the search signaling to be forwarded.
  • the relay node identifier is a complete public safety application code
  • the search filter includes an identifier parameter of a relay node that allows forwarding of the search signaling. a partial public safety application code with a wildcard, and/or one or more complete public safety application codes, the judging the relay node identifier in the search signaling and the permission included in the search filter Whether the identifier parameter of the relay node that forwards the search signaling matches does specifically include:
  • relay-dedicated codes capable of implementing the relay forwarding function are also within the scope of the present invention.
  • the search signaling may be forwarded to the receiver terminal through the PC5 interface.
  • the embodiment discloses a terminal direct connection communication method, which receives search signaling sent by a sender terminal, where the search signaling includes a relay transmission identifier and a relay node identifier; the relay transmission identifier is used to indicate Whether the search signaling is allowed to be forwarded by the relay; determining whether the relay transmission identifier in the search signaling indicates that the search signaling is allowed to be relayed; if yes, determining the middle of the search signaling The successor identifier is matched to the identifier parameter of the relay node that is allowed to forward the search signaling contained in the search filter; if it matches, the search signaling is forwarded to the recipient terminal.
  • the multi-hop search of the D2D search function is implemented by relaying the search signaling, thereby enhancing the ability of the sender terminal to search for the receiver terminal in various scenarios, improving the user experience and ensuring the personal safety of the user.
  • FIG. 3 is a schematic flowchart of Embodiment 2 of a method for directly connecting a terminal according to the present invention.
  • the method is applied to a relay terminal, and the relay terminal may be a mobile terminal having a relay function.
  • This embodiment does not impose any limitation.
  • the method specifically includes the following steps:
  • S201 Receive search signaling sent by the sender terminal, where the search signaling includes a relay transmission identifier and a relay node identifier.
  • search signaling sent by the sending sender terminal in S201 the search signal
  • the specific implementation of the relay transmission identifier and the relay node identifier is described in detail in the method embodiment 1, and is not described in detail in this embodiment.
  • S203 Determine whether the current number of times the search signaling is relayed is greater than a preset number of times. If not greater, execute S204. If yes, execute S206.
  • S204 Add one to the current number of times the search signaling is relayed, and determine a relay node identifier in the search signaling and a relay node included in the search filter that allows forwarding of the search signaling. Whether the identifier parameters match; if yes, execute S205, if no, execute S206.
  • the step of determining the number of relaying and forwarding is added to the method embodiment 1 to further improve the user experience.
  • FIG. 4 is a schematic flowchart of Embodiment 3 of a method for directly connecting a terminal according to the present invention.
  • the method is applied to a relay terminal, and the relay terminal may be a mobile terminal having a relay function.
  • This embodiment does not impose any limitation.
  • the method specifically includes the following steps:
  • S301 Receive search signaling sent by the sender terminal, where the search signaling includes a relay transmission identifier and a relay node identifier.
  • S302 Determine whether the relay transmission identifier in the search signaling indicates that the search signaling is allowed to be Relay forwarding; if yes, execute S303, if no, execute S310.
  • S304 Add one to the current number of times the search signaling is relayed, and determine a relay node identifier in the search signaling and a relay node included in the search filter that allows forwarding of the search signaling. Whether the identifier parameters match; if yes, execute S305, if no, execute S310.
  • the search signaling further includes a first relay cutoff time, where the first relay cutoff time is used to indicate that the search signaling is allowed to be forwarded before the first relay cutoff time.
  • S306 Determine whether the current time is earlier than the first relay cut-off time. If it is earlier, execute S307. If it is not earlier, execute S310.
  • the search signaling further includes a second relay cutoff time, where the second relay cutoff time is used to indicate that the search signaling is allowed to be forwarded before the second relay cutoff time.
  • S308 Determine whether the current time is earlier than the second relay cut-off time. If it is earlier, execute S309, if not earlier, execute S310.
  • a terminal direct connection communication method disclosed by the present invention is described in the most detailed manner, but for those skilled in the art, the steps obtained by step deletion are obtained on the basis of the embodiment.
  • the terminal direct connection communication method is also within the scope of the present invention.
  • the terminal direct connection communication method obtained by deleting S303, or deleting S305, S306, or deleting S303, S307, and S308 can be implemented in the present invention.
  • This embodiment adds a step of guaranteeing the relay forwarding aging on the basis of the method embodiment 1, and further improves the user experience.
  • FIG. 5 is a schematic structural diagram of Embodiment 1 of a terminal direct communication device according to the present disclosure.
  • the terminal direct communication device is specifically a mobile terminal having a relay forwarding function, and the device specifically includes the following units:
  • the receiving unit 11 is configured to receive the search signaling sent by the sender terminal, where the search signaling includes a relay transmission identifier and a relay node identifier, where the relay transmission identifier is used to indicate whether the search signaling is allowed. Relayed;
  • the first determining unit 12 is configured to determine whether the relay transmission identifier in the search signaling indicates that the search signaling is allowed to be relayed.
  • the second determining unit 13 is configured to: when the first determining unit determines that the result is yes, determine the relay node identifier in the search signaling and the relay node included in the search filter that is allowed to forward the search signaling Whether the identifier parameters match;
  • the sending unit 14 is configured to forward the search signaling to the receiver terminal when the second determining unit determines that the result is yes.
  • the present invention may also select a suitable unit from the following units to form a new terminal direct communication device, and the specific composition manner may be determined according to the related description in the method embodiment, which is not described in this embodiment.
  • a first acquiring unit configured to acquire a first relay cutoff time included in the search signaling before forwarding the search signaling to the receiver terminal.
  • the search signaling further includes a first relay cutoff time, where the first relay cutoff time is used to indicate that the search signaling is allowed to be relayed before the first relay cutoff time.
  • a third determining unit configured to determine whether the current time is earlier than the first relay cutoff time
  • the sending unit is specifically configured to: when the third determining unit determines that the result is yes, forward the search signaling to the receiver terminal; when the third determining unit determines that the result is no, the search signaling is not forwarded. To the recipient terminal.
  • a second acquiring unit configured to acquire a preset second relay cut-off time before forwarding the search signaling to the receiver terminal.
  • the search signaling further includes a second relay cutoff time, where the second relay cutoff time is used to indicate that the search signaling is allowed to be relayed before the second relay cutoff time.
  • a fourth determining unit configured to determine whether the current time is earlier than the second relay cutoff time
  • the sending unit is specifically the same as when the fourth determining unit determines that the result is yes, the search signaling is forwarded to the receiving terminal; when the fourth determining unit determines that the result is no, the search signaling is not forwarded. To the recipient terminal.
  • a fifth determining unit configured to determine whether the current number of times the search signaling is relayed is greater than a preset number of times before determining whether the relay node identifier in the search signaling matches the search filter
  • the second determining unit is triggered to perform determining that the relay node identifier in the search signaling and the search filter include forwarding the search signaling.
  • the judging unit performs a step of judging whether the relay node identifier in the search signaling matches an identifier parameter of a relay node included in the search filter that allows forwarding of the search signaling.
  • the relay node identifier is a complete public safety application code
  • the identifier parameter of the relay node included in the search filter that allows forwarding of the search signaling is a partial public safety application code with a wildcard, and / Or, one or more complete public safety application codes, wherein the second determining unit is specifically configured to:
  • the present invention discloses a terminal direct connection communication method, which receives search signaling sent by a sender terminal, where the search signaling includes a relay transmission identifier and a relay node identifier; the relay transmission identifier is used to indicate Determining whether the search signaling is allowed to be forwarded; determining whether the relay transmission identifier in the search signaling indicates that the search signaling is allowed to be relayed; if yes, determining the relay in the search signaling The node identifier matches whether the identifier parameter of the relay node that is allowed to forward the search signaling contained in the search filter matches; if it matches, the search signaling is forwarded to the recipient terminal.
  • the multi-hop search of the D2D search function is implemented by relaying the search signaling, thereby enhancing the ability of the sender terminal to search for the receiver terminal in various scenarios, improving the user experience and ensuring the personal safety of the user.
  • the present invention also discloses a terminal direct communication device.
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be Physical units can be located in one place or distributed to multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • the connection relationship between the modules indicates that there is a communication connection between them, and specifically, one or more communication buses or signal lines can be realized.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course can also be included by dedicated hardware. It is realized by an ASIC, a dedicated CPU, a dedicated memory, a dedicated component, and the like. In general, functions performed by computer programs can be easily implemented with the corresponding hardware, and the specific hardware structure used to implement the same function can be various, such as analog circuits, digital circuits, or dedicated circuits. Circuits, etc. However, for the purposes of the present invention, software program implementation is a better implementation in more cases.
  • the technical solution of the present invention which is essential or contributes to the prior art, can be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a readable storage medium such as a floppy disk of a computer.
  • U disk mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., including a number of instructions to make a computer device (may be A personal computer, server, or network device, etc.) performs the methods described in various embodiments of the present invention.

Abstract

本发明公开了一种终端直连通信方法,接收发送方终端发送的搜索信令,所述搜索信令中包括中继传输标识和中继节点标识符;所述中继传输标识用于表示所述搜索信令是否允许被中继转发;判断所述搜索信令中的中继传输标识是否表示所述搜索信令允许被中继转发;如果是,则判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配;如果匹配,则将所述搜索信令转发至接收方终端。通过中继转发搜索信令实现D2D的搜索功能的多跳搜索,进而增强发送方终端在各种场景下搜索到接收方终端的能力,提升了用户感受,保障了用户的人身安全。相应的,本发明还公开了一种终端直连通信装置。

Description

一种终端直连通信方法及装置
本申请要求于2015年5月29日提交中国专利局、申请号为201510287589.2,发明名称为“一种终端直连通信方法及装置”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
本发明涉及通信技术领域,更具体的说,是涉及一种终端直连通信方法及装置。
背景技术
D2D(Device-to-Device,终端直连通信)是一种短距离通信业务,由于设备间直通通信可以实现数据在终端间的直接传输,而不需要经过基站进行转发,因此,D2D业务能够提高传输速率、缩短传输时间以及减少能量消耗。对于一些近距离通信或公共安全事件来说,D2D业务更具有高效性。
目前,LTE(Long Term Evolution,长期演进)系统的R12协议中,给出了D2D的两大功能,即搜索功能和通信功能,其中,搜索功能支持在多种应用场景(比如,公共安全场景)下,具有D2D能力的发送方终端可搜索到同样具有D2D能力的接收方终端。
但是现有的D2D的搜索功能仅限于单跳搜索,如果发送方终端与接收方终端的距离较远,或者,发送方终端与接收方终端所处的环境较为复杂,如地下室或倒塌的楼房中,可能会导致发送方终端搜索不到接收方终端,极大影响了用户的使用感受,甚至会危害到用户的人身安全。
发明内容
有鉴于此,本发明提供了一种终端直连通信方法及装置,以克服现有技术中的D2D的搜索功能由于仅限于单跳搜索,如果发送方终端与接收方终端的距离较远,或者,发送方终端与接收方终端所处的环境较为复杂,如地下室或倒塌的楼房中,可能会导致发送方终端搜索不到接收方终端,极大影响了用户 的使用感受,甚至会危害到用户的人身安全的问题。
为实现上述目的,本发明提供如下技术方案:
经由上述的技术方案可知,与现有技术相比,本发明公开了一种终端直连通信方法,接收发送方终端发送的搜索信令,所述搜索信令中包括中继传输标识和中继节点标识符;所述中继传输标识用于表示所述搜索信令是否允许被中继转发;判断所述搜索信令中的中继传输标识是否表示所述搜索信令允许被中继转发;如果是,则判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配;如果匹配,则将所述搜索信令转发至接收方终端。通过中继转发搜索信令实现D2D的搜索功能的多跳搜索,进而增强发送方终端在各种场景下搜索到接收方终端的能力,提升了用户感受,保障了用户的人身安全。相应的,本发明还公开了一种终端直连通信装置。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据提供的附图获得其他的附图。
图1为本发明实施例公开的基于中继的D2D搜索协议栈结构示意图;
图2为本发明公开的一种终端直连通信方法实施例1流程示意图;
图3为本发明公开的一种终端直连通信方法实施例2流程示意图;
图4为本发明公开的一种终端直连通信方法实施例3流程示意图;
图5为本发明公开的一种终端直连通信装置实施例1结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,这仅仅是描述本发明的实施例中对相同属性的对象在描述时所采用的区分方式。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,以便包含一系列单元的过程、方法、系统、产品或设备不必限于那些单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它单元。
由背景技术可知,现有技术中的D2D的搜索功能由于仅限于单跳搜索,如果发送方终端与接收方终端的距离较远,或者,发送方终端与接收方终端所处的环境较为复杂,如地下室或倒塌的楼房中,可能会导致发送方终端搜索不到接收方终端,极大影响了用户的使用感受,甚至会危害到用户的人身安全。
为此,本发明公开了一种终端直连通信方法,接收发送方终端发送的搜索信令,所述搜索信令中包括中继传输标识和中继节点标识符;所述中继传输标识用于表示所述搜索信令是否允许被中继转发;判断所述搜索信令中的中继传输标识是否表示所述搜索信令允许被中继转发;如果是,则判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配;如果匹配,则将所述搜索信令转发至接收方终端。通过中继转发搜索信令实现D2D的搜索功能的多跳搜索,进而增强发送方终端在各种场景下搜索到接收方终端的能力,提升了用户感受,保障了用户的人身安全。相应的,本发明还公开了一种终端直连通信装置。
为使本发明的上述目的、特征和优点能够更加明显易懂,下面结合附图和具体实施方式对本发明作进一步详细的说明。
在本发明中,首先定义了基于中继的D2D搜索协议栈结构,具体如图1所示,在本发明的基于中继的D2D搜索协议栈结构中,定义了中继功能逻辑层(图1中的Relay功能层),所述中继功能逻辑层可以是在目前MAC层或ProSe Protocol(公共安全协议)层上做的功能增强或者独立子层,进一步的,该中继功能逻辑层也可以是MAC层以上,ProSe Protocol层以下的任何新增子层或任何子层功能的增强。对此,本发明不做任何限定。
基于本发明公开的基于中继的D2D搜索协议栈结构,本发明公开了如下 终端直连通信方法及装置。
请参阅附图2,为本发明公开的一种终端直连通信方法实施例1流程示意图,所述方法应用于中继终端,所述中继终端可以为具有中继功能的移动终端,对此,本实施例不做任何限定。该方法具体包括如下步骤:
S101:接收发送方终端发送的搜索信令,所述搜索信令中包括中继传输标识和中继节点标识符。
所述中继传输标识用于表示所述搜索信令是否允许被中继转发。
需要说明的是,在发送方终端,可根据发送方终端的签约数据或/和其他高层信息(如发送方终端的电量等信息)确定发送方终端发送的搜索信令是否允许被中继转发,并用1bit信息位在搜索信令中进行标识,该1bit信息位即为中继传输标识,具体的,可用1标识允许被中继转发,用0标识不允许被中继转发,该1bit信息位可以是新建信息位,也可以是现有搜索信令格式中的保留信息位。
另外,发送方终端还需要向网络侧发送搜索请求,网络侧将根据发送方终端的搜索请求反馈中继节点标识符。发送方终端在收到网络侧反馈的中继节点标识符之后,即可将该中继节点标识符放置于搜索信令中通过PC5接口进行发送。
S102:判断所述搜索信令中的中继传输标识是否表示所述搜索信令允许被中继转发;如果是,则执行S103,如果否,则执行S105。
基于S101的描述,该步骤中,具体可以判断搜索信令中信息位中是否为1即可判断所述搜索信令中的中继传输标识是否表示所述搜索信令允许被中继转发。当然还有其他实现方式,本实施例不一一列举。
S103:判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配;如果是,则执行S104,如果否,则执行S105。
中继终端预先从网络侧获取搜索过滤器,该搜索过滤器中包含有允许转发所述搜索信令的中继节点的标识符参数。
需要说明的是,在本实施例中,所述中继节点标识符为完整的公共安全应用码,所述搜索过滤器包含的允许转发所述搜索信令的中继节点的标识符参数 为带有通配符的部分公共安全应用码,和/或,一个或多个完整的公共安全应用码,则所述判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配具体包括:
判断所述搜索信令中完整的公共安全应用码的除与所述通配符对应的码之外的部分公共安全应用码是否与搜索过滤器中包含的除与所述通配符对应的码之外的部分公共安全应用码匹配;
和/或,判断所述搜索信令中的公共安全应用码是否与搜索过滤器中包含的一个或多个完整的公共安全应用码中的任意一个公共安全应用码完全匹配。
进一步需要说明的是,除上述公共安全应用码之外,其他能够实现中继转发功能的中继专用码也在本发明保护范围内。
S104:将所述搜索信令转发至接收方终端。
具体的,可将所述搜索信令通过PC5接口转发至接收方终端。
S105:结束。
本实施例公开了一种终端直连通信方法,接收发送方终端发送的搜索信令,所述搜索信令中包括中继传输标识和中继节点标识符;所述中继传输标识用于表示所述搜索信令是否允许被中继转发;判断所述搜索信令中的中继传输标识是否表示所述搜索信令允许被中继转发;如果是,则判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配;如果匹配,则将所述搜索信令转发至接收方终端。通过中继转发搜索信令实现D2D的搜索功能的多跳搜索,进而增强发送方终端在各种场景下搜索到接收方终端的能力,提升了用户感受,保障了用户的人身安全。
请参阅附图3,为本发明公开的一种终端直连通信方法实施例2流程示意图,所述方法应用于中继终端,所述中继终端可以为具有中继功能的移动终端,对此,本实施例不做任何限定。该方法具体包括如下步骤:
S201:接收发送方终端发送的搜索信令,所述搜索信令中包括中继传输标识和中继节点标识符。
需要说明的是,S201中的接收发送方终端发送的搜索信令,所述搜索信 令中包括中继传输标识和中继节点标识符的具体实现方式在方法实施例1中已详细说明,本实施例不再赘述。
S202:判断所述搜索信令中的中继传输标识是否表示所述搜索信令允许被中继转发;如果是,则执行S203,如果否,则执行S206。
需要说明的是,S202中的判断所述搜索信令中的中继传输标识是否表示所述搜索信令允许被中继转发的具体实现方式在方法实施例1中已详细说明,本实施例不再赘述。
S203:判断所述搜索信令被中继转发的当前次数是否大于预设次数,如果不大于,则执行S204,如果大于,则执行S206。
S204:对所述搜索信令被中继转发的当前次数加一,并判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配;如果是,则执行S205,如果否,则执行S206。
需要说明的是,S204中判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配的具体实现方式在方法实施例1中已详细说明,本实施例不再赘述。
S205:将所述搜索信令转发至接收方终端。
S206:结束。
本实施例在方法实施例1的基础上增加了判断中继转发次数的步骤,进一步提升了用户的使用感受。
请参阅附图4,为本发明公开的一种终端直连通信方法实施例3流程示意图,所述方法应用于中继终端,所述中继终端可以为具有中继功能的移动终端,对此,本实施例不做任何限定。该方法具体包括如下步骤:
S301:接收发送方终端发送的搜索信令,所述搜索信令中包括中继传输标识和中继节点标识符。
需要说明的是,S301中的接收发送方终端发送的搜索信令,所述搜索信令中包括中继传输标识和中继节点标识符的具体实现方式在方法实施例1中已详细说明,本实施例不再赘述。
S302:判断所述搜索信令中的中继传输标识是否表示所述搜索信令允许被 中继转发;如果是,则执行S303,如果否,则执行S310。
需要说明的是,S302中的判断所述搜索信令中的中继传输标识是否表示所述搜索信令允许被中继转发的具体实现方式在方法实施例1中已详细说明,本实施例不再赘述。
S303:判断所述搜索信令被中继转发的当前次数是否大于预设次数,如果不大于,则执行S304,如果大于,则执行S310。
S304:对所述搜索信令被中继转发的当前次数加一,并判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配;如果是,则执行S305,如果否,则执行S310。
需要说明的是,S304中判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配的具体实现方式在方法实施例1中已详细说明,本实施例不再赘述。
S305:获取搜索信令中包含的第一中继截止时刻。
所述搜索信令还包含第一中继截止时刻,所述第一中继截止时刻用于表示在所述第一中继截止时刻之前,所述搜索信令允许被中继转发。
S306:判断当前时刻是否早于所述第一中继截止时刻,如果早于,则执行S307,如果不早于,则执行S310。
S307:获取预设的第二中继截止时刻。
所述搜索信令还包含第二中继截止时刻,所述第二中继截止时刻用于表示在所述第二中继截止时刻之前,所述搜索信令允许被中继转发。
S308:判断当前时刻是否早于所述第二中继截止时刻,如果早于,则执行S309,如果不早于,则执行S310。
S309:将所述搜索信令转发至接收方终端。
S310:结束。
需要说明的是,在本实施例中,最为详尽的描述了本发明公开的一种终端直连通信方法,但是,对本领域技术人员来说,在本实施例基础上进行步骤删减所获得的终端直连通信方法同样在本发明保护范围之内。比如,删减S303,或删减S305、S306,或删减S303、S307、S308之后获得的终端直连通信方法在本发明中均能实现。
本实施例在方法实施例1的基础上增加了保障中继转发时效的步骤,进一步提升了用户的使用感受。
上述本发明公开的实施例中详细描述了方法,对于本发明的方法可采用多种形式的装置实现,因此本发明还公开了一种装置,下面给出具体的实施例进行详细说明。
请参阅附图5,为本发明公开的一种终端直连通信装置实施例1结构示意图,所述终端直连通信装置具体为具有中继转发功能的移动终端,该装置具体包括如下单元:
接收单元11,用于接收发送方终端发送的搜索信令,所述搜索信令中包括中继传输标识和中继节点标识符;所述中继传输标识用于表示所述搜索信令是否允许被中继转发;
第一判断单元12,用于判断所述搜索信令中的中继传输标识是否表示所述搜索信令允许被中继转发;
第二判断单元13,用于当第一判断单元判断结果为是时,判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配;
发送单元14,用于当第二判断单元判断结果为是时,将所述搜索信令转发至接收方终端。
基于上述装置实施例1,本发明还可从以下单元中选取合适单元组成新的终端直连通信装置,具体组成方式可对应方法实施例中的相关描述进行确定,本实施例不再赘述。
第一获取单元,用于在将所述搜索信令转发至接收方终端之前,获取搜索信令中包含的第一中继截止时刻。
需要说明的是,所述搜索信令还包含第一中继截止时刻,所述第一中继截止时刻用于表示在所述第一中继截止时刻之前,所述搜索信令允许被中继转发;
第三判断单元,用于判断当前时刻是否早于所述第一中继截止时刻;
则所述发送单元具体用于当第三判断单元判断结果为是时,将所述搜索信令转发至接收方终端;当第三判断单元判断结果为否时,不将所述搜索信令转发至接收方终端。
第二获取单元,用于在将所述搜索信令转发至接收方终端之前,获取预设的第二中继截止时刻。
需要说明的是,所述搜索信令还包含第二中继截止时刻,所述第二中继截止时刻用于表示在所述第二中继截止时刻之前,所述搜索信令允许被中继转发;
第四判断单元,用于判断当前时刻是否早于所述第二中继截止时刻;
则所述发送单元具体同于当第四判断单元判断结果为是时,将所述搜索信令转发至接收方终端;当第四判断单元判断结果为否时,不将所述搜索信令转发至接收方终端。
第五判断单元,用于在判断所述搜索信令中的中继节点标识符与搜索过滤器是否匹配之前,判断所述搜索信令被中继转发的当前次数是否大于预设次数;
当所述第五判断单元判断结果为不大于时,则触发所述第二判断单元执行判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配的步骤,并对所述搜索信令被中继转发的当前次数加一;当所述第五判断单元判断结果为大于时,则不触发所述第二判断单元执行判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配的步骤。
所述中继节点标识符为完整的公共安全应用码,所述搜索过滤器包含的允许转发所述搜索信令的中继节点的标识符参数为带有通配符的部分公共安全应用码,和/或,一个或多个完整的公共安全应用码,则所述第二判断单元具体用于:
判断所述搜索信令中完整的公共安全应用码的除与所述通配符对应的码之外的部分公共安全应用码是否与搜索过滤器中包含的除与所述通配符对应的码之外的部分公共安全应用码匹配;
和/或,判断所述搜索信令中的公共安全应用码是否与搜索过滤器中包含 的一个或多个完整的公共安全应用码中的任意一个公共安全应用码完全匹配。
需要说明的是,上述各个单元的具体功能实现已在方法实施例中进行详细描述,装置实施例中将不再赘述。
综上所述:
本发明公开了一种终端直连通信方法,接收发送方终端发送的搜索信令,所述搜索信令中包括中继传输标识和中继节点标识符;所述中继传输标识用于表示所述搜索信令是否允许被中继转发;判断所述搜索信令中的中继传输标识是否表示所述搜索信令允许被中继转发;如果是,则判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配;如果匹配,则将所述搜索信令转发至接收方终端。通过中继转发搜索信令实现D2D的搜索功能的多跳搜索,进而增强发送方终端在各种场景下搜索到接收方终端的能力,提升了用户感受,保障了用户的人身安全。相应的,本发明还公开了一种终端直连通信装置。
本说明书中各个实施例采用递进的方式描述,每个实施例重点说明的都是与其他实施例的不同之处,各个实施例之间相同相似部分互相参见即可。对于实施例公开的装置而言,由于其与实施例公开的方法相对应,所以描述的比较简单,相关之处参见方法部分说明即可。
另外需说明的是,以上所描述的装置实施例仅仅是示意性的,其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。另外,本发明提供的装置实施例附图中,模块之间的连接关系表示它们之间具有通信连接,具体可以实现为一条或多条通信总线或信号线。本领域普通技术人员在不付出创造性劳动的情况下,即可以理解并实施。
通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到本发明可借助软件加必需的通用硬件的方式来实现,当然也可以通过专用硬件包括 专用集成电路、专用CPU、专用存储器、专用元器件等来实现。一般情况下,凡由计算机程序完成的功能都可以很容易地用相应的硬件来实现,而且,用来实现同一功能的具体硬件结构也可以是多种多样的,例如模拟电路、数字电路或专用电路等。但是,对本发明而言更多情况下软件程序实现是更佳的实施方式。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在可读取的存储介质中,如计算机的软盘,U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述的方法。
综上所述,以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照上述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对上述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (10)

  1. 一种终端直连通信方法,其特征在于,所述方法包括:
    接收发送方终端发送的搜索信令,所述搜索信令中包括中继传输标识和中继节点标识符;所述中继传输标识用于表示所述搜索信令是否允许被中继转发;
    判断所述搜索信令中的中继传输标识是否表示所述搜索信令允许被中继转发;
    如果是,则判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配;
    如果匹配,则将所述搜索信令转发至接收方终端。
  2. 根据权利要求1所述的方法,其特征在于,所述搜索信令还包含第一中继截止时刻,所述第一中继截止时刻用于表示在所述第一中继截止时刻之前,所述搜索信令允许被中继转发,则在将所述搜索信令转发至接收方终端之前,还包括:
    获取搜索信令中包含的第一中继截止时刻;
    判断当前时刻是否早于所述第一中继截止时刻;
    如果早于,则将所述搜索信令转发至接收方终端;
    如果不早于,则不将所述搜索信令转发至接收方终端。
  3. 根据权利要求1或2所述的方法,其特征在于,所述搜索信令还包含第二中继截止时刻,所述第二中继截止时刻用于表示在所述第二中继截止时刻之前,所述搜索信令允许被中继转发,则在将所述搜索信令转发至接收方终端之前,还包括:
    获取预设的第二中继截止时刻;
    判断当前时刻是否早于所述第二中继截止时刻;
    如果早于,则将所述搜索信令转发至接收方终端;
    如果不早于,则不将所述搜索信令转发至接收方终端。
  4. 根据权利要求1所述的方法,其特征在于,则在判断所述搜索信令中的中继节点标识符与搜索过滤器是否匹配之前,还包括:
    判断所述搜索信令被中继转发的当前次数是否大于预设次数;
    如果不大于,则执行判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配的步骤,并对所述搜索信令被中继转发的当前次数加一;
    如果大于,则不执行判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配的步骤。
  5. 根据权利要求1所述的方法,其特征在于,所述中继节点标识符为完整的公共安全应用码,所述搜索过滤器包含的允许转发所述搜索信令的中继节点的标识符参数为带有通配符的部分公共安全应用码,和/或,一个或多个完整的公共安全应用码,则所述判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配具体包括:
    判断所述搜索信令中完整的公共安全应用码的除与所述通配符对应的码之外的部分公共安全应用码是否与搜索过滤器中包含的除所述通配符之外的部分公共安全应用码匹配;
    和/或,判断所述搜索信令中的公共安全应用码是否与搜索过滤器中包含的一个或多个完整的公共安全应用码中的任意一个公共安全应用码完全匹配。
  6. 一种终端直连通信装置,其特征在于,所述装置包括:
    接收单元,用于接收发送方终端发送的搜索信令,所述搜索信令中包括中继传输标识和中继节点标识符;所述中继传输标识用于表示所述搜索信令是否允许被中继转发;
    第一判断单元,用于判断所述搜索信令中的中继传输标识是否表示所述搜索信令允许被中继转发;
    第二判断单元,用于当第一判断单元判断结果为是时,判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配;
    发送单元,用于当第二判断单元判断结果为是时,将所述搜索信令转发至 接收方终端。
  7. 根据权利要求6所述的装置,其特征在于,所述搜索信令还包含第一中继截止时刻,所述第一中继截止时刻用于表示在所述第一中继截止时刻之前,所述搜索信令允许被中继转发,则所述装置还包括:
    第一获取单元,用于在将所述搜索信令转发至接收方终端之前,获取搜索信令中包含的第一中继截止时刻;
    第三判断单元,用于判断当前时刻是否早于所述第一中继截止时刻;
    则所述发送单元具体用于当第三判断单元判断结果为是时,将所述搜索信令转发至接收方终端;当第三判断单元判断结果为否时,不将所述搜索信令转发至接收方终端。
  8. 根据权利要求6或7所述的装置,其特征在于,所述搜索信令还包含第二中继截止时刻,所述第二中继截止时刻用于表示在所述第二中继截止时刻之前,所述搜索信令允许被中继转发,则所述装置还包括:
    第二获取单元,用于在将所述搜索信令转发至接收方终端之前,获取预设的第二中继截止时刻;
    第四判断单元,用于判断当前时刻是否早于所述第二中继截止时刻;
    则所述发送单元具体同于当第四判断单元判断结果为是时,将所述搜索信令转发至接收方终端;当第四判断单元判断结果为否时,不将所述搜索信令转发至接收方终端。
  9. 根据权利要求6所述的装置,其特征在于,则还包括:
    第五判断单元,用于在判断所述搜索信令中的中继节点标识符与搜索过滤器是否匹配之前,判断所述搜索信令被中继转发的当前次数是否大于预设次数;
    当所述第五判断单元判断结果为不大于时,则触发所述第二判断单元执行判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配的步骤,并对所述搜索信令被中继转发的当前次数加一;当所述第五判断单元判断结果为大于时,则不触发所述第二判断单元执行判断所述搜索信令中的中继节点标识符与搜索过滤器中包含的允许转发所述搜索信令的中继节点的标识符参数是否匹配的步骤。
  10. 根据权利要求6所述的装置,其特征在于,所述中继节点标识符为完整的公共安全应用码,所述搜索过滤器包含的允许转发所述搜索信令的中继节点的标识符参数为带有通配符的部分公共安全应用码,和/或,一个或多个完整的公共安全应用码,则所述第二判断单元具体用于:
    判断所述搜索信令中完整的公共安全应用码的除与所述通配符对应的码之外的部分公共安全应用码是否与搜索过滤器中包含的除所述通配符之外的部分公共安全应用码匹配;
    和/或,判断所述搜索信令中的公共安全应用码是否与搜索过滤器中包含的一个或多个完整的公共安全应用码中的任意一个公共安全应用码完全匹配。
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