WO2017015786A1 - 确定中继用户设备和社交关系的方法、基站以及网络服务器 - Google Patents

确定中继用户设备和社交关系的方法、基站以及网络服务器 Download PDF

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Publication number
WO2017015786A1
WO2017015786A1 PCT/CN2015/085046 CN2015085046W WO2017015786A1 WO 2017015786 A1 WO2017015786 A1 WO 2017015786A1 CN 2015085046 W CN2015085046 W CN 2015085046W WO 2017015786 A1 WO2017015786 A1 WO 2017015786A1
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Prior art keywords
user equipment
social
channel capacity
social relationship
candidate relay
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PCT/CN2015/085046
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English (en)
French (fr)
Inventor
孙越
宋令阳
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华为技术有限公司
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Priority to CN201580028920.7A priority Critical patent/CN106576077B/zh
Priority to PCT/CN2015/085046 priority patent/WO2017015786A1/zh
Publication of WO2017015786A1 publication Critical patent/WO2017015786A1/zh

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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
    • H04W40/04—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources
    • H04W40/10—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources based on available power or energy

Definitions

  • Embodiments of the present invention relate to the field of mobile social network communications, and more particularly, to a method, base station, and network server for determining a relay user equipment and social relationship.
  • Mobile social network is a new type of self-organizing network, which can help users to quickly transmit and share data in a certain area based on the relationship between users and the physical channel status information of users.
  • users can communicate through base stations, wireless fidelity (WiFi), Bluetooth, near field communication, and the like.
  • WiFi wireless fidelity
  • WiFi wireless fidelity
  • Bluetooth near field communication
  • the data traffic of the cellular network is increased, resulting in increased pressure on the cellular network system; when the user equipment transmits data to other users through Bluetooth or near field communication.
  • the above communication means cannot be widely used in mobile social networks.
  • the source user equipment in the existing mobile social network can perform data transmission by relaying the user equipment and the target user equipment.
  • the existing scheme only considers the channel capacity between the source user equipment and the relay user equipment. Even if the channel state between the source user equipment and the relay user equipment is good, there may be other factors that make the data unable to transmit or cannot be transmitted quickly, or the entire system may be costly to transmit the data from the source user equipment to The target user equipment eventually leads to a reduction in the efficiency of data transmission across the network.
  • the embodiments of the present invention provide a method, a base station, and a network server for determining a relay user equipment and a social relationship, which can improve the efficiency of data transmission on a network.
  • the first aspect provides a method for determining a relay user equipment in a mobile social network, including: acquiring a first social relationship between a source user equipment and each candidate relay user equipment of the N candidate relay user equipments, and a second social relationship between the target user equipment and each of the candidate relay user equipments, where the mobile social network includes the N candidate relay user equipments, where N is an integer greater than or equal to 2; a first channel capacity between the source user equipment and each of the candidate relay user equipments and a second channel capacity between the target user equipment and each of the candidate relay user equipments; Determining, by the social relationship, the second social relationship, the first channel capacity, and the second channel capacity, an alternate relay user equipment from the N candidate relay user equipments, so that the source user equipment passes the The standby relay user equipment performs D2D data transmission with the target user equipment.
  • the determining, according to the first social relationship, the second social relationship, the first channel capacity, and the second channel capacity, from the N Determining the alternate relay user equipment among the candidate relay user equipments includes: determining, by the first social relationship, the second social relationship, the first channel capacity, and the second channel capacity, that the source user equipment passes The cost required for the D2D data transmission by each of the candidate relay user equipments and the target user equipment; selecting the least expensive relay user equipment from the N candidate relay user equipments to determine the standby relay User equipment.
  • the performing, according to the first social relationship, the second social relationship, the first channel capacity, and the second The channel capacity determines a cost required by the source user equipment to perform D2D data transmission by the each candidate relay user equipment and the target user equipment, including determining the cost according to the following formula:
  • the acquiring the source user equipment and each of the N candidate relay user equipments include: receiving the first social relationship and the second social relationship sent by the network server.
  • the acquiring a first channel capacity between the source user equipment and each candidate relay user equipment, and the The second channel capacity between the target user equipment and each of the candidate relay user equipments includes: receiving the first channel capacity and the second channel capacity sent by the source user equipment.
  • the second aspect provides a method for determining a social relationship in a mobile social network, including: obtaining identification information of each user equipment in the mobile social network, and social data of each user equipment on a different social platform; Determining, by the identification information of each user equipment, the social data of each user equipment on different social platforms, determining a social relationship between each two user equipments; transmitting the social relationship to the base station, so that the base station is according to the social The relationship determines the alternate relay user equipment such that the source user equipment performs D2D data transmission with the target user equipment through the alternate relay user equipment.
  • the social relationship includes: obtaining, according to the information of each user equipment, the probability that each user equipment shares different items on different social platforms, and obtaining the probability that each user equipment shares different items on each social platform Distribution; integrating the probability distributions of different user devices sharing different projects on different social platforms, and obtaining a probability distribution in which each user device shares different items on different social platforms; according to each user device sharing different items on different social platforms The probability distribution is obtained as a social relationship between user devices; wherein the social data of each user device on different social platforms includes a probability that each user device shares different items on different social platforms.
  • a base station including: a first acquiring unit, configured to acquire a first social relationship and a target user equipment between each of the source user equipments and each of the N candidate relay user equipments a second social relationship with each of the candidate relay user devices, wherein the mobile social network includes the N candidate relay user devices, N is an integer greater than or equal to 2; and the second obtaining unit And acquiring a first channel capacity between the source user equipment and each candidate relay user equipment, and a second channel capacity between the target user equipment and each candidate relay user equipment; a determining unit, configured to: according to the first social relationship and the second social relationship acquired by the first acquiring unit, and according to the second acquiring unit, Determining, by the first channel capacity and the second channel capacity, an alternate relay user equipment from the N candidate relay user equipments, so that the source user equipment performs the standby user equipment with the target user equipment D2D data transmission.
  • the determining unit is specifically configured to use, according to the first social relationship, the second social relationship, the first channel capacity, and the second channel
  • the capacity determines a cost required by the source user equipment to perform D2D data transmission by the each candidate relay user equipment and the target user equipment, and selects a least costly relay from the N candidate relay user equipments.
  • the user equipment is determined to be the alternate relay user equipment.
  • the determining unit is specifically configured to determine the cost according to the following formula:
  • the first acquiring unit is specifically configured to receive the first social relationship and the second social relationship that are sent by a network server.
  • the second acquiring unit is specifically configured to receive, by the source user equipment, the first channel capacity and the second Channel capacity.
  • the fourth aspect provides a network server, including: an obtaining unit, configured to acquire identification information of each user equipment in the mobile social network, and social data of each user equipment on different social platforms; and a determining unit, configured to: Determining, according to the identification information of each user equipment acquired by the acquiring unit, and the social data of each user equipment on different social platforms, a social relationship between each two user equipments; and a sending unit, configured to send to the base station And sending, by the determining unit, the social relationship, so that the base station determines, according to the social relationship, the standby relay user equipment, so that the source user equipment performs D2D data transmission with the target user equipment by using the standby relay user equipment.
  • the determining unit is specifically configured to be used Obtaining a probability distribution of each user equipment sharing different items on each social platform according to the identification information of each user equipment and the probability that each user equipment shares different items on different social platforms, for the same user
  • the device integrates the probability distributions of different items on different social platforms, and obtains a probability distribution in which each user equipment shares different items on different social platforms, and obtains user equipment according to the probability distribution of each user equipment sharing different items on different social platforms.
  • the social relationship between the social data of each user device on different social platforms includes the probability that each user device shares different items on different social platforms.
  • the standby relay user equipment when the source user equipment performs data transmission between the relay user equipment and the target user equipment, the standby relay user equipment is determined according to the channel capacity of each hop and the social relationship between the user equipments of each hop. This can avoid the technical problem that the transmission capacity can be reduced only by considering the channel capacity between the source user equipment and the relay user equipment, and can improve the efficiency of data transmission throughout the network.
  • FIG. 1 is a schematic diagram of a scenario of a communication system to which an embodiment of the present invention is applicable.
  • FIG. 2 is a schematic flowchart of a method for determining a relay user equipment in a mobile social network according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method for determining a social relationship in a mobile social network according to an embodiment of the present invention.
  • FIG. 4 is a schematic flow chart of acquiring a social relationship according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of selecting a relay user equipment and performing data transmission according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a target user equipment payment incentive mode according to an embodiment of the present invention.
  • FIG. 7 is a block diagram of a base station in accordance with one embodiment of the present invention.
  • FIG. 8 is a block diagram of a network server in accordance with one embodiment of the present invention.
  • FIG. 9 is a block diagram of a base station according to another embodiment of the present invention.
  • FIG. 10 is a block diagram of a network server in accordance with another embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the base station may be a base station (Base Transceiver Station, abbreviated as "BTS”) in GSM or CDMA, or a base station (NodeB, abbreviated as “NB”) in WCDMA, or an evolved base station (Evolved Node in LTE).
  • B abbreviated as “ENB or e-NodeB”
  • ENB evolved base station
  • a user equipment may be called a terminal, a mobile station ("MS” for short), or a mobile terminal (Mobile Terminal).
  • the user device can be a mobile phone (or “cellular” phone) or a computer with a mobile terminal or the like.
  • the user equipment can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges voice and/or data with the wireless access network.
  • FIG. 1 is a schematic diagram of a scenario of a communication system to which an embodiment of the present invention is applicable.
  • the communication system of the mobile social network of FIG. 1 includes a base station 101, a network server 102, a source user equipment 103, a candidate relay user equipment 104, and a target user equipment 105, wherein the candidate relay user equipment may have N, for example, FIG. UE-1, UE-2, ... UE-N, N shown in the figure are integers greater than or equal to 2.
  • a user equipment When a user equipment transmits data to other users through a base station, WiFi, Bluetooth, or near field communication, It may increase the data traffic of the cellular network, causing the pressure of the cellular network system to increase, or may be limited by the transmission power and the transmission distance, and the data cannot be transmitted normally.
  • the target user equipment can obtain data by means of other user equipment capable of acquiring the data it needs.
  • the target user device can obtain data from the source user device.
  • the target user equipment may acquire data from the source user equipment by using the relay user equipment.
  • the embodiment of the present invention can also be applied to an application scenario in which a target user equipment recommends data to a source user equipment and transmits data to the user equipment by using the relay user equipment.
  • the embodiment of the invention provides a method for a target user equipment to acquire data from a source user equipment by using a relay user equipment, where the source user equipment can directly acquire data from the base station.
  • the target user equipment is far away from the source user equipment or the direct communication power loss is large, the data needs to be transmitted between the two through the relay user equipment.
  • the embodiment of the invention provides a method for selecting a relay user equipment.
  • the existing technical solution only considers the channel state information between the source user equipment and the relay user equipment.
  • the embodiment of the present invention introduces a social relationship between the user equipments, and considers between the relay user equipment and the target user equipment. Channel state information, taking into account the factors affecting data transmission as much as possible, which can improve the efficiency of the system to transmit data.
  • the network server in FIG. 1 can be used to calculate a social relationship between user equipments, the base station can directly communicate with the source user equipment, and the source user equipment can communicate with the candidate relay user equipment, and the candidate relay user equipment can be associated with the target user. The device communicates.
  • the data is transmitted through the base station or the like, and the device-to-device (D2D) communication is directly performed, that is, the data may be directly transmitted from the source user equipment to the relay user equipment.
  • the transmission is performed and can be directly transmitted to the target user equipment by the relay user equipment.
  • the transmission of any data may pass through one relay user equipment, two relay user equipments, or multiple relay user equipments.
  • the embodiment of the present invention does not limit the number of the relay user equipment.
  • the network is only used in the two-hop network (that is, the source user equipment can transmit data to the target user equipment through only one relay user equipment). .
  • FIG. 2 is a schematic flowchart of a method for determining a relay user equipment in a mobile social network according to an embodiment of the present invention.
  • the method of Figure 2 can be performed by a base station.
  • 201 Acquire a first social relationship between the source user equipment and each candidate relay user equipment of the N candidate relay user equipments, and a first between the target user equipment and each candidate relay user equipment.
  • the second social relationship wherein the mobile social network includes N candidate relay user equipments, and N is an integer greater than or equal to 2.
  • the user equipment performs D2D data transmission.
  • the standby relay user equipment when the source user equipment performs data transmission between the relay user equipment and the target user equipment, the standby relay user equipment is determined according to the channel capacity of each hop and the social relationship between the user equipments of each hop. This can avoid the technical problem that the transmission capacity can be reduced only by considering the channel capacity between the source user equipment and the relay user equipment, and can improve the efficiency of data transmission throughout the network.
  • Step 201 Acquire a first social relationship between the source user equipment and each candidate relay user equipment of the N candidate relay user equipments, and a second social relationship between the target user equipment and each candidate relay user equipment may include Receiving the first social relationship and the second social relationship sent by a network server.
  • the first social relationship is a social relationship between the source user equipment and each candidate relay user equipment
  • the second social relationship is a social relationship between the target user equipment and each candidate relay user equipment.
  • the network server may calculate the first social relationship and the second social relationship, and send the first social relationship and the second social relationship to the base station.
  • Step 202 Obtaining a first channel capacity between the source user equipment and each candidate relay user equipment, and a second channel capacity between the target user equipment and each candidate relay user equipment may include receiving, by the source user equipment, the first Channel capacity and second channel capacity.
  • the first channel capacity may be obtained by the candidate relay user equipment and sent to the source user equipment
  • the second channel capacity may be obtained by the target user equipment by detecting and transmitting to the source user equipment by using the candidate relay user equipment.
  • the source user equipment may send a detection signal for detecting channel state information to the candidate relay user equipment.
  • the candidate relay user equipment After receiving the detection signal, the candidate relay user equipment detects the channel state information between the source user equipment and itself, and sends the detected channel state information to the base station through the source user equipment.
  • the base station can obtain the first channel capacity according to the channel state information.
  • the first channel capacity is the channel capacity between the source user equipment and the candidate relay user equipment.
  • the candidate relay user equipment may send the detection channel status information to the target user equipment.
  • Detection signal After receiving the detection signal, the target user equipment detects the channel state information between the candidate relay user equipment and itself, and sends the detected channel state information to the base station through the candidate relay user equipment and the source user equipment.
  • the base station can obtain the second channel capacity according to the channel state information.
  • the second channel capacity is the channel capacity between the candidate relay user equipment and the target user equipment.
  • the determining, by the first social relationship, the second social relationship, the first channel capacity, and the second channel capacity, that the standby relay user equipment is from the N candidate relay user equipments may include: according to the first social relationship, the second social relationship, The first channel capacity and the second channel capacity determine a cost required for the source user equipment to perform D2D data transmission by each candidate relay user equipment and the target user equipment, and select the least costly relay from the N candidate relay user equipments.
  • the user equipment is determined to be an alternate relay user equipment.
  • the base station may select an alternate relay user equipment from the N candidate relay user equipments by using a calculation cost as an example, and may also determine the standby relay user equipment by calculating other functions. It is only necessary to determine that the alternate relay user equipment is within the scope of the present invention based on the first social relationship, the second social relationship, the first channel capacity, and the second channel capacity.
  • Determining the alternate relay user equipment from the N candidate relay user equipments according to the first social relationship, the second social relationship, the first channel capacity, and the second channel capacity may include: according to the first social relationship, the second social relationship, the first The channel capacity and the second channel capacity determine the cost required by the source user equipment to perform D2D data transmission by each of the candidate relay user equipments and the target user equipment may include determining a cost according to the following formula:
  • the embodiment of the present invention does not limit the transmission mode used by the relay user equipment to transmit data.
  • the relay user equipment may perform data transmission by means of Decode and Forward (DF), and may also adopt amplification and forwarding ( Amplified and Forward, AF) Line data transfer.
  • DF Decode and Forward
  • AF amplification and forwarding
  • the cost function (1) may be specifically:
  • the first term in the denominator is the square of the average of the intensities of the social relationships of the two sub-processes transmitting the data, which is recorded as the average intensity of the social relationship.
  • the second term is the variance of the strength of the social relationship between the two sub-processes, which is recorded as the strength of the social relationship imbalance.
  • the two sub-processes are data transmitted by the source user equipment to the relay user equipment and data transmitted by the relay user equipment to the target user equipment.
  • the cost function expression (3) it can be seen from the cost function expression (3) that, in the case that the communication channel state information is constant, the average strength of the social relationship between the relay user equipment and the source user equipment and the target user equipment is greater, and the target user equipment needs The lower the cost of payment. Reflected in real life, it can be understood that when relaying user equipment is needed to assist data transmission, the social relationship between the relay user equipment and the source user equipment is tighter, and between the relay user equipment and the target user equipment. The closer the social relationship, the less cost it pays.
  • the cost function in the embodiment of the present invention takes into account the channel state information and the social relationship between the source user equipment and the relay user equipment, and the channel state information and social relationship between the relay user equipment and the target user equipment. In this way, the channel state information between the source user equipment and the relay user equipment can be avoided to select the effect of the relay user equipment on the transmission efficiency, thereby improving the efficiency of the network transmission data.
  • the social relationship between the user equipments is further introduced, and the essence of the social relationship, the depth of the social relationship, and the impact of the shared file on the transmission data are further analyzed, not only the degree of user connection, the ability of the user to transmit data, The level of user proximity, etc.
  • the data received by the target user equipment includes the amplification noise during data transmission between the source user equipment and the relay user equipment, and the signal-to-noise ratio of the entire communication process is affected.
  • the method for determining the relay user equipment in the embodiment of the present invention is as follows: Determine at least two alternate relay user devices. At this time, the method for determining the alternate relay user equipment may first obtain all possible paths from the source user equipment to the target user equipment, and perform cost analysis on each complete path, and select the majority of the complete path with the least cost. The candidate relay user equipments serve as alternate relay user equipments.
  • the operator often charges according to the traffic required for each data transmission, which may cause the relay user equipment to consume its own traffic,
  • the cost is increased by resources such as electricity.
  • the relay user equipment acquires data from the source user equipment, the source user equipment needs to pay a fee, and then the target user equipment acquires data from the relay user equipment and pays the fee.
  • the fee paid by the target user equipment to the relay user equipment may not be sufficient to offset the cost of the relay user equipment to assist the target user equipment in acquiring data from the source user equipment, which makes the relay user equipment unwilling to assist the target user equipment in acquiring data.
  • the target user equipment may pay the communication fee generated by the data transmission between the source user equipment, the relay user equipment, and the target user equipment to the operator, and send the communication fee to the source user equipment.
  • the user equipment payment assistance fee is used to stimulate the source user equipment and the relay user equipment to assist the target user equipment to acquire data. In this way, by giving an appropriate incentive mechanism, the relay user equipment and the source user equipment can be made to assist the target user equipment to complete data transmission because of the social relationship between the devices and a certain reward.
  • FIG. 3 is a schematic flowchart of a method for determining a social relationship in a mobile social network according to an embodiment of the present invention.
  • the method of Figure 3 can be performed by a web server.
  • 302. Determine, according to the identification information of each user equipment and the social data of each user equipment on different social platforms, the social relationship between each two user equipments.
  • the network server may obtain the social relationship between the user equipments through calculation, so that the target user equipment can pass the The social relationship between the channel capacity and the user equipment of each hop selects the relay user equipment, which can avoid the technical problem that the transmission efficiency can be reduced only by considering the channel capacity between the source user equipment and the relay user equipment. Improve the efficiency of data transmission across the entire network.
  • Obtaining the identifier information of each user equipment in the mobile social network in step 301 may include receiving identifier information of each user equipment in the mobile social network sent by the base station.
  • obtaining the social data of each user equipment on different social platforms may include the network server searching the user equipment according to the information of each user equipment received from the base station, and obtaining social data of each user equipment on different social platforms. For example, the probability that each user device shares different items on different social platforms is obtained.
  • Step 302 determining, according to the identification information of each user equipment, and the social data of each user equipment on different social platforms, the social relationship between each two user equipments may include: according to the information of each user equipment and each social network of the user equipment The platform shares the probability of different projects, and obtains the probability distribution of each user device sharing different items on each social platform.
  • the probability distribution of sharing the different items of the same user equipment on different social platforms is integrated, and the probability distribution of each user equipment sharing different items on different social platforms is obtained.
  • the social relationship between the user devices is obtained according to the probability distribution that each user device shares different items on different social platforms.
  • the social data of each user equipment on different social platforms includes the probability that each user equipment shares different items on different social platforms.
  • FIG. 4 is a schematic flow chart of acquiring a social relationship according to an embodiment of the present invention.
  • the network server may obtain a probability that the user equipment selects different items for sharing on different social platforms.
  • Social platforms may include WeChat, Weibo, Facebook, and the like.
  • the user has a one-to-one correspondence with the user equipment, and the user can perform various social activities on the social platform, such as posting information, making friends, watching videos, and the like.
  • Users can share various projects on social platforms, such as sharing entertainment videos, news pages, and more.
  • the probability that a user shares an item on the same social platform can share the number of items in the user's share of the item. For example, if a user views 100 entertainment videos, 10 of them are shared, then the probability that the user shares the entertainment video can be considered to be 10%.
  • the social behavior of the user may be facilitated by the user's hobbies and social relationships between the users. Therefore, the social relationship between the users may be obtained according to the social behavior of the user, for example, the history in which the user selects different items for sharing. weak.
  • the kernel density estimation method is used to obtain the probability that the user equipment shares different items on any social platform.
  • the network server may analyze the probability of the user sharing the item obtained in step 401, and obtain the probability that the user shares different items on any social platform according to experience and using the kernel density estimation. For example, a web server can obtain the probability that a user can share a news web page on WeChat, and can also obtain the probability of sharing an entertainment video on WeChat. In addition, the web server can obtain the probability that the user shares the news webpage in the microblog, and can also obtain the probability that the user can share the entertainment video in the microblog, and the like.
  • the web server may integrate the probability that the user obtained in step 402 shares different items on different social platforms.
  • a Bayesian variable parameter model may be adopted to obtain a probability distribution in which each user shares different items on different social platforms.
  • the web server can share the probability of different projects on different social platforms for each user. Cloth, calculate the social relationship between different users. Social relationships can be expressed by the relevance of the user's probability distribution of sharing different items on different social platforms. The value of the social relationship between users ranges from 0 to 1.
  • FIG. 5 is a schematic flowchart of selecting a relay user equipment and performing data transmission according to an embodiment of the present invention.
  • the network server acquires user information through a base station and calculates a social relationship between the user equipments.
  • the base station can obtain the user identification information in the cell area and report the user information to the network server.
  • the user identification information can be used to know which user equipments are in the cell.
  • the web server can search the user equipment and its history on the social platform according to the user information, and then calculate the social relationship between the user equipments according to the history records on different social platforms.
  • the social relationship between the user equipments may include a social relationship between the source user equipment and the candidate relay user equipment, and a social relationship between the target user equipment and the candidate relay user equipment.
  • the base station acquires a social relationship between user equipments.
  • the base station can download the social relationship between the user equipments to the local network through the network server.
  • the base station determines a network coverage of the target user equipment.
  • the base station can also allocate, for each user equipment, the spectrum resources required for data transmission. Before the base station allocates spectrum resources, the base station needs to determine the network coverage of the target user equipment. When the target user equipment is under the coverage of the weak cellular network, the process proceeds to step 505. When it is determined that the target user equipment is under the coverage of the strong cellular network, the process proceeds to step 506.
  • the base station directly allocates fixed frequency spectrum resources to the two communication links.
  • the base station can allocate more spectrum resources, and can directly allocate orthogonal frequency spectrum resources for the two communication links, where the two communication links refer to the source user equipment.
  • the base station selects a spectrum resource with small interference for the two communication links.
  • the target user equipment When the target user equipment is determined to be under the coverage of the strong cellular network, there is a certain interference between the spectrum resources, and the base station selects and allocates spectrum resources with small interference for the two communication links. After allocating the spectrum resources for the communication link, the program proceeds to step 507.
  • the base station obtains channel state information from the source user equipment, and calculates a channel capacity.
  • the base station may first determine whether the communication link between the user equipments is available. For example, when the channel state information on the communication link between the user equipments is greater than or equal to the interference margin of the communication link, the communication link can establish a connection, ie, the communication link is available.
  • the base station may obtain channel state information from the source user equipment, including channel state information between the source user equipment and the candidate relay user equipment, and channel state information between the candidate relay user equipment and the target user equipment.
  • the base station can calculate the channel capacity according to the channel state information by using the Shannon formula, and the channel capacity includes the channel capacity between the source user equipment and the candidate relay user equipment and the channel capacity between the candidate relay user equipment and the target user equipment.
  • the base station calculates, according to the cost function, a cost to be paid by the target user equipment when obtaining data of the source user equipment by using each relay user equipment.
  • the base station may use the cost function to calculate the cost to be paid by the target user equipment to obtain data of the source user equipment through each relay user equipment according to the obtained channel capacity and social relationship between the user equipments.
  • the cost is a function of the channel capacity and the social relationship. A detailed description of the cost function has been given above. To avoid repetition, details are not described herein again.
  • the base station selects the lowest cost relay user equipment as the backup relay user equipment.
  • the base station may select, from among the multiple candidate relay user equipments, the least cost user equipment calculated by the cost function as the relay user equipment used for actually transmitting data, that is, the standby relay user equipment.
  • the target user equipment initiates a data transmission request, and acquires data from the source user equipment on the spectrum resource allocated by the base station by using the standby relay user equipment.
  • the target user equipment may initiate a data transmission request, and obtain the required data from the source user equipment by using the backup relay user equipment on the spectrum resource allocated by the base station.
  • the target user equipment pays the communication fee to the operator, and pays the assistance fee to the source user equipment and the relay user equipment.
  • the target user equipment can pay the operator the communication fee generated by the data transmission between the source user equipment, the relay user equipment, and the target user equipment.
  • the target user equipment may also pay a assistance fee to the source user equipment and the relay user equipment to stimulate the source user equipment and the relay user equipment to assist the target user equipment to acquire data.
  • FIG. 6 is a schematic diagram of a target user equipment payment incentive mode according to an embodiment of the present invention.
  • the network system in FIG. 6 includes an operator, a source user equipment, a relay user equipment, and a target user equipment.
  • the base station determines that the relay user equipment is selected for data transmission
  • the data in the source user equipment transmits the data to the target user equipment through the first stage data transmission and the second stage data transmission.
  • the first phase data transmission is transmitted to the relay user equipment by the source user equipment
  • the second phase data transmission is transmitted to the target user equipment by the relay user equipment.
  • the target user equipment After the data transmission is completed, the target user equipment needs to pay the communication fee generated by the first phase and the second phase data transmission to the operator, and pay a certain assistance fee to the source user equipment and the relay user equipment respectively.
  • the communication cost is positively related to the actual transmitted data traffic.
  • the sum of the assistance fees paid to the source user equipment and the relay user equipment may be the cost calculated by the cost function.
  • the assistance fee can motivate the source user device and the relay user device to assist the target user device to obtain data.
  • the amount of assistance costs is related to the average strength and imbalance strength of the social relationship between the source user equipment, the relay user equipment, and the target user equipment participating in the two-phase data transmission. The greater the average strength of the social relationship between the relay user equipment and the source user equipment and the target user equipment, the smaller the imbalance strength, and the smaller the assistance cost of the target user equipment.
  • the transmission process consumes resources of the relay user equipment.
  • the relay user equipment passively participates in data transmission.
  • the embodiment of the present invention can stimulate the source user equipment and the relay user equipment to actively participate in the data transmission process, thereby improving the efficiency of data transmission in the entire network.
  • a method for transmitting data according to an embodiment of the present invention is described in detail above with reference to FIG. 2 to FIG. 6. The following describes an embodiment according to the present invention from the perspective of a target user equipment and a network server in conjunction with FIGS. 7 to 10.
  • a diagram of the device for transmitting data is described in detail above with reference to FIG. 2 to FIG. 6.
  • FIG. 7 is a block diagram of a base station in accordance with one embodiment of the present invention.
  • the base station of Figure 7 can perform the method of Figure 2.
  • the base station of FIG. 7 includes a first acquisition unit 11, a second acquisition unit 12, and a determination unit 13.
  • the first obtaining unit 11 is configured to acquire a first social relationship between the source user equipment and each candidate relay user equipment of the N candidate relay user equipments, and a number between the target user equipment and each candidate relay user equipment.
  • the second social relationship wherein the mobile social network includes N candidate relay user equipments, and N is an integer greater than or equal to 2.
  • the second obtaining unit 12 is configured to acquire between the source user equipment and each candidate relay user equipment.
  • the determining unit 13 is configured to determine, according to the first social relationship and the second social relationship acquired by the first acquiring unit, the second channel from the N candidate relay user equipment according to the first channel capacity and the second channel capacity acquired by the second acquiring unit.
  • the user equipment is relayed so that the source user equipment performs D2D data transmission with the target user equipment through the alternate relay user equipment.
  • the standby relay user equipment when the source user equipment performs data transmission between the relay user equipment and the target user equipment, the standby relay user equipment is determined according to the channel capacity of each hop and the social relationship between the user equipments of each hop. This can avoid the technical problem that the transmission capacity can be reduced only by considering the channel capacity between the source user equipment and the relay user equipment, and can improve the efficiency of data transmission throughout the network.
  • the determining unit is specifically configured to determine, according to the first social relationship, the second social relationship, the first channel capacity, and the second channel capacity, that the source user equipment passes each candidate relay user equipment and the target user equipment.
  • the cost required for D2D data transmission is performed, and the least costly relay user equipment is selected from the N candidate relay user equipments to be determined as the standby relay user equipment.
  • the determining unit is specifically configured to determine the cost according to the following formula:
  • Channel capacity between the user equipment and the target user equipment through the i-th candidate, for the source user equipment The channel capacity between the source user equipment and the i-th candidate relay user equipment, The channel capacity between the i-th candidate relay user equipment and the target user equipment, a social relationship between the source user equipment and the i-th candidate relay user equipment, For the social relationship between the i-th candidate relay user equipment and the target user equipment, 1 ⁇ i ⁇ N.
  • the first acquiring unit is specifically configured to receive the first social relationship and the second social relationship that are sent by the network server.
  • the second acquiring unit is specifically configured to receive the first channel capacity and the second channel capacity that are sent by the source user equipment.
  • a base station may correspond to a method for determining a relay user equipment in a mobile social network in the method of the embodiment of the present invention in FIG. 2, and each unit/module in the base station and the other operations and/or functions described above are respectively Corresponding processes for implementing the method shown in FIG. 2 are omitted for brevity.
  • FIG. 8 is a block diagram of a network server in accordance with one embodiment of the present invention.
  • the network server of FIG. 8 includes an acquisition unit 21, a determination unit 22, and a transmission unit 23.
  • the obtaining unit 21 is configured to obtain identification information of each user equipment in the mobile social network and social data of each user equipment on different social platforms.
  • the determining unit 22 is configured to determine, according to the identification information of each user equipment acquired by the acquiring unit, and the social data of each user equipment on different social platforms, the social relationship between each two user equipments;
  • the sending unit 23 is configured to send, to the base station, the social relationship determined by the determining unit, so that the base station determines the standby relay user equipment according to the social relationship, so that the source user equipment performs D2D data transmission with the target user equipment by using the backup relay user equipment.
  • the network server may obtain the social relationship between the user equipments through calculation, so that the target user equipment can pass the The social relationship between the channel capacity and the user equipment of each hop selects the relay user equipment, which can avoid the technical problem that the transmission efficiency can be reduced only by considering the channel capacity between the source user equipment and the relay user equipment. Improve the efficiency of data transmission across the entire network.
  • the determining unit is specifically configured to: according to the identifier information of each user equipment and the probability that each user equipment shares different items on different social platforms, obtain that each user equipment shares differently on each social platform.
  • the probability distribution of the project integrates the probability distribution of different users sharing different projects on different social platforms, and obtains the probability distribution of each user device sharing different items on different social platforms, and shares different items according to each user device on different social platforms.
  • the probability distribution results in a social relationship between user devices, wherein the social data of each user device on different social platforms includes the probability that each user device shares different items on different social platforms.
  • a network server may correspond to a method of determining a social relationship in a mobile social network in the method of the embodiment of the present invention in FIG. 3, and each unit/module in the apparatus and the other operations and/or functions described above For the sake of brevity, the corresponding processes of the method shown in FIG. 3 are respectively omitted.
  • FIG. 9 is a block diagram of a base station according to another embodiment of the present invention.
  • the base station 30 of FIG. 9 includes a processor 31, a memory 32, and a receiver 33.
  • the processor 31 controls the operation of the base station 30 and can be used to process signals.
  • Memory 32 can include read only memory and random access memory and provides instructions and data to processor 31.
  • bus System 34 is coupled together, wherein bus system 34 includes, in addition to the data bus, a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 34 in the figure.
  • the method disclosed in the foregoing embodiments of the present invention may be applied to the processor 31 or implemented by the processor 31.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 31 or an instruction in a form of software.
  • the processor 31 can be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, which can be implemented or executed in an embodiment of the invention.
  • a general purpose processor can be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 32, and the processor 31 reads the information in the memory 32 and, in conjunction with its hardware, performs the steps of the above method.
  • the processor 31 may acquire a first social relationship between the source user equipment and each candidate relay user equipment of the N candidate relay user equipments, and a number between the target user equipment and each candidate relay user equipment.
  • the second social relationship wherein the mobile social network includes N candidate relay user equipments, and N is an integer greater than or equal to 2.
  • the processor 31 may also acquire a first channel capacity between the source user equipment and each candidate relay user equipment and a second channel capacity between the target user equipment and each candidate relay user equipment.
  • the processor 31 may further determine an alternate relay user equipment from the N candidate relay user equipments according to the first social relationship, the second social relationship, the first channel capacity, and the second channel capacity, so that the source user equipment passes the backup relay user.
  • the device performs D2D data transmission with the target user equipment.
  • the standby relay user equipment when the source user equipment performs data transmission between the relay user equipment and the target user equipment, the standby relay user equipment is determined according to the channel capacity of each hop and the social relationship between the user equipments of each hop. This can avoid the technical problem that the transmission capacity can be reduced only by considering the channel capacity between the source user equipment and the relay user equipment, and can improve the efficiency of data transmission throughout the network.
  • the processor 31 may determine, according to the first social relationship, the second social relationship, the first channel capacity, and the second channel capacity, that the source user equipment passes each candidate.
  • the cost required for the D2D data transmission by the user equipment and the target user equipment is determined, and the least expensive relay user equipment is selected from the N candidate relay user equipments to be the standby relay user equipment.
  • the processor 31 may determine the cost according to the following formula:
  • Channel capacity between the user equipment and the target user equipment through the i-th candidate for the source user equipment, a channel capacity between the source user equipment and the i-th candidate relay user equipment, The channel capacity between the i-th candidate relay user equipment and the target user equipment, a social relationship between the source user equipment and the i-th candidate relay user equipment, For the social relationship between the i-th candidate relay user equipment and the target user equipment, 1 ⁇ i ⁇ N.
  • the receiver 33 may be configured to receive the first social relationship and the second social relationship sent by the network server.
  • the receiver 33 may be configured to receive the first channel capacity and the second channel capacity sent by the source user equipment.
  • FIG. 10 is a block diagram of a network server in accordance with another embodiment of the present invention.
  • the network server 40 of FIG. 10 includes a processor 41, a memory 42, and a transmitter 43.
  • the processor 41 controls the operation of the web server 40 and can be used to process signals.
  • Memory 42 may include read only memory and random access memory and provides instructions and data to processor 41.
  • the various components of network server 40 are coupled together by a bus system 44, which in addition to the data bus includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 44 in the figure.
  • the method disclosed in the foregoing embodiment of the present invention may be applied to the processor 41 or implemented by the processor 41.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 41 or an instruction in a form of software.
  • the processor 41 can be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or perform the embodiments of the present invention.
  • a general purpose processor can be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • Software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory or The rewritable programmable memory, registers, and the like are well-known in the storage medium.
  • the storage medium is located in the memory 42, and the processor 41 reads the information in the memory 42 and performs the steps of the above method in combination with its hardware.
  • the processor 41 may obtain the identification information of each user equipment in the mobile social network and the social data of each user equipment on different social platforms, according to the identification information of each user equipment and each user equipment on a different social platform. Social data that determines the social relationship between each two user devices.
  • the transmitter 43 may send a social relationship to the base station, so that the base station determines the alternate relay user equipment according to the social relationship, so that the source user equipment performs D2D data transmission with the target user equipment through the backup relay user equipment.
  • the network server may obtain the social relationship between the user equipments through calculation, so that the target user equipment can pass the The social relationship between the channel capacity and the user equipment of each hop selects the relay user equipment, which can avoid the technical problem that the transmission efficiency can be reduced only by considering the channel capacity between the source user equipment and the relay user equipment. Improve the efficiency of data transmission across the entire network.
  • the processor 41 may share the different items of each user equipment on each social platform according to the identification information of each user equipment and the probability that each user equipment shares different items on different social platforms. Probability distribution. The probability distribution of sharing the different items of the same user equipment on different social platforms is integrated, and the probability distribution of each user equipment sharing different items on different social platforms is obtained. The social relationship between the user devices is obtained according to the probability distribution that each user device shares different items on different social platforms. The social data of each user equipment on different social platforms includes the probability that each user equipment shares different items on different social platforms.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be The implementation process of the embodiments of the present invention constitutes any limitation.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present invention is essentially or a part contributing to the prior art or a part of the technical solution.
  • the points may be embodied in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform various embodiments of the present invention All or part of the steps of the method.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

Abstract

本发明实施例提供了一种移动社交网络中确定中继用户设备和社交关系的方法、基站和网络服务器。该方法包括获取源用户设备与N个候选中继用户设备中每个候选中继用户设备之间的第一社交关系和第一信道容量，以及获取目标用户设备与每个候选中继用户设备之间的第二社交关系和第二信道容量，其中，移动社交网络中包括N个候选中继用户设备，N为大于或者等于2的整数，并根据第一社交关系、第二社交关系、第一信道容量和第二信道容量从N个候选中继用户设备中确定备用中继用户设备。本发明实施例通过根据每一跳的信道容量和每一跳的用户设备之间的社交关系对中继用户设备进行选择，这样可以提高整个网络传输数据的效率。

Description

确定中继用户设备和社交关系的方法、基站以及网络服务器 技术领域
本发明实施例涉及移动社交网络通信领域，并且更具体地，涉及确定中继用户设备和社交关系的方法、基站以及网络服务器。
背景技术
随着社交网络的迅猛发展，层出不穷的社交产品使人们可以随时随地进行通信，例如脸谱(Facebook)、推特(Twitter)以及微信等线上社交服务(Online Social Network Services,SNSs)。由于线上社交服务的广泛推崇以及个人智能通信终端(例如，智能手机、平板电脑、便携式电脑)的普遍应用使得越来多的人习惯随时使用线上社交服务，这给蜂窝网络信道容量带来巨大的要求和压力。
移动社交网络是一种新型的自组织网络，它可以基于用户之间的关系和用户线下物理信道状态信息在一定区域内帮助用户进行快速的数据传输和分享。现有移动社交网络中用户之间可以通过基站、无线保真(wireless fidelity，WiFi)、蓝牙、近场通信等进行通信。但是，当用户设备通过基站或WiFi与其它用户进行数据传输时，会增加蜂窝网络的数据通讯量，导致蜂窝网络系统的压力加大；当用户设备通过蓝牙或近场通信与其它用户进行数据传输时，由于传输功率和传输距离的限制，使得上述通信手段不能在移动社交网络中得到广泛应用。
为了克服上述缺陷，现有移动社交网络中源用户设备可以通过中继用户设备与目标用户设备进行数据传输。在选择中继用户设备时，现有方案仅考虑源用户设备与中继用户设备之间的信道容量。即使源用户设备与中继用户设备之间的信道状态良好，但仍可能存在其它因素使得数据无法传输或无法快速传输，或者可能导致整个系统需要很大的代价才能将数据由源用户设备传输给目标用户设备，最终导致整个网络传输数据的效率降低。
发明内容
本发明实施例提供一种确定中继用户设备和社交关系的方法、基站以及网络服务器，能够提高网络传输数据的效率。
第一方面，提供了一种移动社交网络中确定中继用户设备的方法，包括：获取源用户设备与N个候选中继用户设备中每个候选中继用户设备之间的第一社交关系和目标用户设备与所述每个候选中继用户设备之间的第二社交关系，其中，所述移动社交网络中包括所述N个候选中继用户设备，N为大于或者等于2的整数；获取所述源用户设备与所述每个候选中继用户设备之间的第一信道容量和所述目标用户设备与所述每个候选中继用户设备之间的第二信道容量；根据所述第一社交关系、所述第二社交关系、所述第一信道容量和所述第二信道容量从所述N个候选中继用户设备中确定备用中继用户设备，以便所述源用户设备通过所述备用中继用户设备与所述目标用户设备进行D2D数据传输。
结合第一方面，在第一方面的一种实现方式中，所述根据所述第一社交关系、所述第二社交关系、所述第一信道容量和所述第二信道容量从所述N个候选中继用户设备中确定备用中继用户设备包括：根据所述第一社交关系、所述第二社交关系、所述第一信道容量和所述第二信道容量确定所述源用户设备通过所述每个候选中继用户设备与所述目标用户设备进行D2D数据传输所需的代价；从所述N个候选中继用户设备中选择代价最小的中继用户设备确定为所述备用中继用户设备。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，所述根据所述第一社交关系、所述第二社交关系、所述第一信道容量和所述第二信道容量确定所述源用户设备通过所述每个候选中继用户设备与所述目标用户设备进行D2D数据传输所需的代价包括根据下列公式确定所述代价：
Figure PCTCN2015085046-appb-000001
其中，
Figure PCTCN2015085046-appb-000002
为所述源用户设备通过第i候选中继用户设备与所述目标用户设备之间的信道容量，
Figure PCTCN2015085046-appb-000003
为所述源用户设备和所述第i候选中继用户设备之间的信道容量，
Figure PCTCN2015085046-appb-000004
为所述第i候选中继用户设备和所述目标用户设备之间的信道容量，
Figure PCTCN2015085046-appb-000005
为所述源用户设备和所述第i候选中继用户设备之间的社交关系，
Figure PCTCN2015085046-appb-000006
为所述第i候选中继用户设备和所述目标用户设备之间的社交关系，1≤i≤N。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，所述获取源用户设备与N个候选中继用户设备中每个候选中继用户设备之间 的第一社交关系和目标用户设备与所述每个候选中继用户设备之间的第二社交关系包括：接收网络服务器发送的所述第一社交关系和所述第二社交关系。
结合第一方面及其上述实现方式，在第一方面的另一种实现方式中，所述获取所述源用户设备与所述每个候选中继用户设备之间的第一信道容量和所述目标用户设备与所述每个候选中继用户设备之间的第二信道容量包括：接收所述源用户设备发送的所述第一信道容量和所述第二信道容量。
第二方面，提供了一种移动社交网络中确定社交关系的方法，包括：获取移动社交网络中每个用户设备的标识信息和所述每个用户设备在不同社交平台的社交数据；根据所述每个用户设备的标识信息和所述每个用户设备在不同社交平台的社交数据，确定每两个用户设备之间的社交关系；向基站发送所述社交关系，以便所述基站根据所述社交关系确定备用中继用户设备，使得源用户设备通过所述备用中继用户设备与目标用户设备进行D2D数据传输。
结合第二方面，在第二方面的一种实现方式中，所述根据所述每个用户设备的标识信息和所述每个用户设备在不同社交平台的社交数据，确定每两个用户设备之间的社交关系包括：根据所述每个用户设备的信息和所述每个用户设备在不同社交平台分享不同项目的概率，得到所述每个用户设备的在每个社交平台分享不同项目的概率分布；对同一用户设备在不同社交平台分享不同项目的概率分布进行整合，得到每个用户设备在不同社交平台分享不同项目的概率分布；根据所述每个用户设备在不同社交平台分享不同项目的概率分布得到用户设备之间的社交关系；其中，所述每个用户设备在不同社交平台的社交数据包括每个用户设备在不同社交平台分享不同项目的概率。
第三方面，提供了一种基站，包括：第一获取单元，用于获取源用户设备与N个候选中继用户设备中每个候选中继用户设备之间的第一社交关系和目标用户设备与所述每个候选中继用户设备之间的第二社交关系，其中，所述移动社交网络中包括所述N个候选中继用户设备，N为大于或者等于2的整数；第二获取单元，用于获取所述源用户设备与所述每个候选中继用户设备之间的第一信道容量和所述目标用户设备与所述每个候选中继用户设备之间的第二信道容量；确定单元，用于根据所述第一获取单元获取的所述第一社交关系和所述第二社交关系，以及根据所述第二获取单元获取的所述 第一信道容量和所述第二信道容量从所述N个候选中继用户设备中确定备用中继用户设备，以便所述源用户设备通过所述备用中继用户设备与所述目标用户设备进行D2D数据传输。
结合第三方面，在第三方面的一种实现方式中，所述确定单元具体用于根据所述第一社交关系、所述第二社交关系、所述第一信道容量和所述第二信道容量确定所述源用户设备通过所述每个候选中继用户设备与所述目标用户设备进行D2D数据传输所需的代价，并从所述N个候选中继用户设备中选择代价最小的中继用户设备确定为所述备用中继用户设备。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，所述确定单元具体用于根据下列公式确定所述代价：
Figure PCTCN2015085046-appb-000007
其中，
Figure PCTCN2015085046-appb-000008
为所述源用户设备通过第i候选中继用户设备与所述目标用户设备之间的信道容量，
Figure PCTCN2015085046-appb-000009
为所述源用户设备和所述第i候选中继用户设备之间的信道容量，
Figure PCTCN2015085046-appb-000010
为所述第i候选中继用户设备和所述目标用户设备之间的信道容量，
Figure PCTCN2015085046-appb-000011
为所述源用户设备和所述第i候选中继用户设备之间的社交关系，
Figure PCTCN2015085046-appb-000012
为所述第i候选中继用户设备和所述目标用户设备之间的社交关系，1≤i≤N。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，所述第一获取单元具体用于接收网络服务器发送的所述第一社交关系和所述第二社交关系。
结合第三方面及其上述实现方式，在第三方面的另一种实现方式中，所述第二获取单元具体用于接收所述源用户设备发送的所述第一信道容量和所述第二信道容量。
第四方面，提供了一种网络服务器，包括：获取单元，用于获取移动社交网络中每个用户设备的标识信息和所述每个用户设备在不同社交平台的社交数据；确定单元，用于根据所述获取单元获取的所述每个用户设备的标识信息和所述每个用户设备在不同社交平台的社交数据，确定每两个用户设备之间的社交关系；发送单元，用于向基站发送所述确定单元确定的所述社交关系，以便所述基站根据所述社交关系确定备用中继用户设备，使得源用户设备通过所述备用中继用户设备与目标用户设备进行D2D数据传输。
结合第四方面，在第四方面的一种实现方式中，所述确定单元具体用于 根据所述每个用户设备的标识信息和所述每个用户设备在不同社交平台分享不同项目的概率，得到所述每个用户设备的在每个社交平台分享不同项目的概率分布，对同一用户设备在不同社交平台分享不同项目的概率分布进行整合，得到每个用户设备在不同社交平台分享不同项目的概率分布，根据所述每个用户设备在不同社交平台分享不同项目的概率分布得到用户设备之间的社交关系，其中，所述每个用户设备在不同社交平台的社交数据包括每个用户设备在不同社交平台分享不同项目的概率。
本发明实施例在源用户设备通过中继用户设备与目标用户设备之间进行数据传输时，通过根据每一跳的信道容量和每一跳的用户设备之间的社交关系确定备用中继用户设备，这样可以避免仅考虑源用户设备和中继用户设备之间的信道容量而可能使得传输效率降低的技术问题，能够提高整个网络传输数据的效率。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是可应用本发明实施例的通信系统的场景的示意图。
图2是本发明一个实施例的移动社交网络中确定中继用户设备的方法的示意性流程图。
图3是本发明一个实施例的移动社交网络中确定社交关系的方法的示意性流程图。
图4是本发明一个实施例的获取社交关系的示意性流程图。
图5是本发明一个实施例的选择中继用户设备并进行数据传输的示意性流程图。
图6是本发明一个实施例的目标用户设备付费激励模式的示意图。
图7是本发明一个实施例的基站的框图。
图8是本发明一个实施例的网络服务器的框图。
图9是本发明另一实施例的基站的框图。
图10是本发明另一实施例的网路服务器的框图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明的一部分实施例，而不是全部实施例。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的前提下所获得的所有其他实施例，都应属于本发明保护的范围。
应理解，本发明实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，简称为“GSM”)系统、码分多址(Code Division Multiple Access，简称为“CDMA”)系统、宽带码分多址(Wideband Code Division Multiple Access，简称为“WCDMA”)系统、通用分组无线业务(General Packet Radio Service，简称为“GPRS”)、长期演进(Long Term Evolution，简称为“LTE”)系统、LTE频分双工(Frequency Division Duplex，简称为“FDD”)系统、LTE时分双工(Time Division Duplex，简称为“TDD”)、通用移动通信系统(Universal Mobile Telecommunication System，简称为“UMTS”)或全球互联微波接入(Worldwide Interoperability for Microwave Access，简称为“WiMAX”)通信系统等。
基站可以是GSM或CDMA中的基站(Base Transceiver Station，简称为“BTS”)，也可以是WCDMA中的基站(NodeB，简称为“NB”)，还可以是LTE中的演进型基站(Evolved Node B，简称为“ENB或e-NodeB”)，本发明并不限定。
用户设备(User Equipment，简称为“UE”)可称之为终端(Terminal)、移动台(Mobile Station，简称为“MS”)或移动终端(Mobile Terminal)等。用户设备可以是移动电话(或称为“蜂窝”电话)或具有移动终端的计算机等。又如，用户设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语音和/或数据。
图1是可应用本发明实施例的通信系统的场景的示意图。
图1的移动社交网络的通信系统包括基站101、网络服务器102、源用户设备103、候选中继用户设备104和目标用户设备105，其中，候选中继用户设备可以有N个，例如，图1中所示的UE-1、UE-2、……UE-N，N为大于或者等于2的整数。
用户设备通过基站、WiFi、蓝牙或近场通信与其它用户进行数据传输时， 可能增加蜂窝网络的数据通讯量，导致蜂窝网络系统的压力加大，或者可能受到传输功率和传输距离的限制，而导致无法正常传输数据。
目标用户设备可以借助能够获取自身所需数据的其它用户设备来获得数据。例如，目标用户设备可以从源用户设备获取数据。但是，当源用户设备与目标用户设备距离比较远，或者其它条件限制二者直接进行数据传输时，目标用户设备可以通过中继用户设备从源用户设备获取数据。
本发明实施例还可以应用在目标用户设备向源用户设备推荐数据并通过中继用户设备向其传输数据的应用场景中。
本发明实施例提出一种目标用户设备可以通过中继用户设备从源用户设备获取数据的方法，其中，源用户设备可以直接从基站获取数据。但是，当目标用户设备与源用户设备距离较远或者二者直接通信功率损耗较大时，二者之间需要通过中继用户设备进行数据的传输。
本发明实施例提出一种选择中继用户设备的方法。现有的技术方案仅考虑源用户设备和中继用户设备之间的信道状态信息，本发明实施例通过引入用户设备之间的社交关系，并考虑到中继用户设备与目标用户设备之间的信道状态信息，将影响数据传输的因素尽可能充分地考虑进来，这样可以提高系统传输数据的效率。图1中的网络服务器可以用来计算用户设备之间的社交关系，基站可以直接与源用户设备进行通信，源用户设备可以与候选中继用户设备进行通信，候选中继用户设备可以与目标用户设备进行通信。
本发明实施例在确定中继用户设备之后，传输数据不再通过基站等，而直接进行设备到设备(Device-to-Device，D2D)通信，即数据可以由源用户设备直接向中继用户设备进行传输，并可以由中继用户设备直接向目标用户设备进行传输。
应理解，任意数据的传输可以经过一个中继用户设备、两个中继用户设备或多个中继用户设备。本发明实施例对中继用户设备的数目不做限制，这里仅以两跳的网络(即源用户设备仅通过一个中继用户设备即可将数据传输至目标用户设备)为例进行示例性说明。
图2是本发明一个实施例的移动社交网络中确定中继用户设备的方法的示意性流程图。图2的方法可以由基站执行。
201,获取源用户设备与N个候选中继用户设备中每个候选中继用户设备之间的第一社交关系和目标用户设备与每个候选中继用户设备之间的第 二社交关系，其中，移动社交网络中包括N个候选中继用户设备，N为大于或者等于2的整数。
202,获取源用户设备与每个候选中继用户设备之间的第一信道容量和目标用户设备与每个候选中继用户设备之间的第二信道容量。
203，根据第一社交关系、第二社交关系、第一信道容量和第二信道容量从N个候选中继用户设备中确定备用中继用户设备，以便源用户设备通过备用中继用户设备与目标用户设备进行D2D数据传输。
本发明实施例在源用户设备通过中继用户设备与目标用户设备之间进行数据传输时，通过根据每一跳的信道容量和每一跳的用户设备之间的社交关系确定备用中继用户设备，这样可以避免仅考虑源用户设备和中继用户设备之间的信道容量而可能使得传输效率降低的技术问题，能够提高整个网络传输数据的效率。
步骤201获取源用户设备与N个候选中继用户设备中每个候选中继用户设备之间的第一社交关系和目标用户设备与每个候选中继用户设备之间的第二社交关系可以包括接收网络服务器发送的所述第一社交关系和所述第二社交关系。
第一社交关系为源用户设备与每个候选中继用户设备之间的社交关系，第二社交关系为目标用户设备与每个候选中继用户设备之间的社交关系。网络服务器可以计算得到第一社交关系和第二社交关系，并向基站发送该第一社交关系和第二社交关系。
步骤202获取源用户设备与每个候选中继用户设备之间的第一信道容量和目标用户设备与每个候选中继用户设备之间的第二信道容量可以包括接收源用户设备发送的第一信道容量和第二信道容量。第一信道容量可以为候选中继用户设备通过检测得到并向源用户设备发送的，第二信道容量可以为目标用户设备通过检测得到并通过候选中继用户设备向源用户设备发送的。
例如，源用户设备可以向候选中继用户设备发送检测信道状态信息的检测信号。候选中继用户设备收到检测信号之后，对源用户设备和自身之间的信道状态信息进行检测，并将检测得到的信道状态信息通过源用户设备发送给基站。基站可以根据该信道状态信息得到第一信道容量。第一信道容量为源用户设备和候选中继用户设备之间的信道容量。
同理，候选中继用户设备可以向目标用户设备发送检测信道状态信息的 检测信号。目标用户设备收到检测信号之后，对候选中继用户设备和自身之间的信道状态信息进行检测，并将检测得到的信道状态信息通过候选中继用户设备以及源用户设备发送给基站。基站可以根据该信道状态信息得到第二信道容量。第二信道容量为候选中继用户设备和目标用户设备之间的信道容量。
步骤203根据第一社交关系、第二社交关系、第一信道容量和第二信道容量从N个候选中继用户设备中确定备用中继用户设备可以包括根据第一社交关系、第二社交关系、第一信道容量和第二信道容量确定源用户设备通过每个候选中继用户设备与目标用户设备进行D2D数据传输所需的代价，并从N个候选中继用户设备中选择代价最小的中继用户设备确定为备用中继用户设备。
在本发明的一个实施例中，以基站可以通过计算代价从N个候选中继用户设备中选择备用中继用户设备为例进行说明，还可以通过计算其它函数来确定备用中继用户设备。只要根据第一社交关系、第二社交关系、第一信道容量和第二信道容量来确定备用中继用户设备都在本发明的保护范围之内。
根据第一社交关系、第二社交关系、第一信道容量和第二信道容量从N个候选中继用户设备中确定备用中继用户设备可以包括根据第一社交关系、第二社交关系、第一信道容量和第二信道容量确定源用户设备通过每个候选中继用户设备与目标用户设备进行D2D数据传输所需的代价可以包括根据下列公式确定代价：
Figure PCTCN2015085046-appb-000013
其中，
Figure PCTCN2015085046-appb-000014
表示源用户设备通过第i候选中继用户设备与目标用户设备之间的信道容量，
Figure PCTCN2015085046-appb-000015
为
Figure PCTCN2015085046-appb-000016
和
Figure PCTCN2015085046-appb-000017
的函数。
Figure PCTCN2015085046-appb-000018
为源用户设备和第i候选中继用户设备之间的信道容量，
Figure PCTCN2015085046-appb-000019
为第i候选中继用户设备和目标用户设备之间的信道容量，
Figure PCTCN2015085046-appb-000020
为源用户设备和第i候选中继用户设备之间的社交关系，
Figure PCTCN2015085046-appb-000021
为第i候选中继用户设备和目标用户设备之间的社交关系，1≤i≤N。
本发明实施例对中继用户设备传输数据时采用的传输模式不做限制，例如，中继用户设备可以采用译码转发(Decode and Forward，DF)的方式进行数据传输，还可以采用放大转发(Amplified and Forward，AF)的方式进 行数据传输。
当候选中继用户设备采用DF的方式进行数据传输时，上述代价函数(1)可以具体为：
Figure PCTCN2015085046-appb-000022
即，将
Figure PCTCN2015085046-appb-000023
可以设置为取
Figure PCTCN2015085046-appb-000024
和
Figure PCTCN2015085046-appb-000025
中的较小值。
对上述代价函数(2)进行变形，可以得到：
Figure PCTCN2015085046-appb-000026
由上述代价函数(3)的表达式可以看出，分母中第一项为传输数据的两个子过程的社交关系的强度的平均值的平方，记为社交关系平均强度。第二项为两个两个子过程的社交关系的强度的方差值，记为社交关系不平衡强度。两个子过程为数据由源用户设备传输至中继用户设备和数据由中继用户设备传输至目标用户设备。
从代价函数表达式(3)中可以看出，在通信信道状态信息一定的情况下，中继用户设备与源用户设备和目标用户设备之间的社交关系平均强度越大，目标用户设备所需支付的代价越小。反映在现实生活中，可以理解为当需要请中继用户设备来协助进行数据传输时，中继用户设备与源用户设备之间的社交关系越紧密、以及中继用户设备与目标用户设备之间的社交关系越紧密，付出的代价越小。
同理，中继用户设备与源用户设备和目标用户设备之间的社交关系不平衡强度越小，目标用户设备所需支付的代价越小。反映在现实生活中，可以理解为当需要请中继用户设备协助进行数据传输时，中继用户设备与源用户设备的社交关系和中继用户设备与目标用户设备之间的社交关系差别越小，亲疏相差越低，需要付出的代价越小。
本发明实施例中的代价函数同时将源用户设备与中继用户设备之间的信道状态信息和社交关系，以及中继用户设备和目标用户设备之间的信道状态信息和社交关系考虑在内，这样可以避免仅依赖源用户设备和中继用户设备之间的信道状态信息选择中继用户设备对传输效率造成的影响，进而能够提高网络传输数据的效率。
本发明实施例中还引入用户设备之间的社交关系，并进一步分析社交关系的本质、社交程度的深浅以及共享文件对传输数据影响，而不仅仅局限在用户连接程度、用户传输数据的能力、用户相邻程度等层面上。
当中继用户设备采用放大转发的方式进行数据传输时，目标用户设备收到的数据中包括源用户设备和中继用户设备之间进行数据传输过程中的放大噪声，整个通信过程的信噪比受到源用户设备和中继用户设备之间信道的信噪比、中继用户设备和目标用户设备之间信道的信噪比的影响。此时，代价函数(1)中的
Figure PCTCN2015085046-appb-000027
仍然可以为
Figure PCTCN2015085046-appb-000028
和
Figure PCTCN2015085046-appb-000029
的函数，但形式更为复杂。
在本发明的一个实施例中，仅以数据由源用户设备经过两跳到达目标用户设备为例进行说明，但本发明实施例中确定中继用户设备的方法可以用户多跳网络中，即需要确定至少两个备用中继用户设备。此时，确定备用中继用户设备的方法可以首先获取从源用户设备到目标用户设备之间的所有可能路径，并对每一条完整路径进行代价分析，选择代价最小的一条完整路径所经过的多个候选中继用户设备作为备用中继用户设备。
在现有无线网络通信研究中，特别是多跳中继用户设备进行数据传输时，运营商往往是根据每一次传输数据所需的流量进行收费，这样可能导致中继用户设备因为消费自身流量、电量等资源而使得成本增加。并且，中继用户设备从源用户设备获取数据时需要给源用户设备支付费用，然后目标用户设备再从中继用户设备处获取数据并支付费用。目标用户设备向中继用户设备支付的费用可能不足以抵消中继用户设备协助目标用户设备从源用户设备获取数据所需的费用，这使得中继用户设备不愿意协助目标用户设备获取数据。
而本发明实施例，在数据传输完成之后，目标用户设备可以向运营商支付数据在源用户设备、中继用户设备和目标用户设备之间进行传输产生的通信费用，并向源用户设备和中继用户设备支付协助费用，用以激励源用户设备和中继用户设备协助目标用户设备获取数据。这样，通过给出恰当的激励机制，可以使得中继用户设备和源用户设备因为设备之间的社交关系和一定的报酬而愿意协助目标用户设备完成数据传输。
上文中图2是从基站的角度详细描述了根据本发明实施例的用于传输数据的方法，下面将从网络服务器的角度描述根据本发明实施例的用于传输数据的方法。
图3是本发明一个实施例的移动社交网络中确定社交关系的方法的示意性流程图。图3的方法可以由网络服务器执行。
301,获取移动社交网络中每个用户设备的标识信息和每个用户设备在不同社交平台的社交数据。
302，根据每个用户设备的标识信息和每个用户设备在不同社交平台的社交数据，确定每两个用户设备之间的社交关系。
303，向基站发送社交关系，以便基站根据所述社交关系确定备用中继用户设备，使得源用户设备通过备用中继用户设备与目标用户设备进行D2D数据传输。
本发明实施例在源用户设备通过中继用户设备与目标用户设备之间进行数据传输时，网络服务器可以通过计算获取用户设备之间的社交关系，这样可以使得目标用户设备通过根据每一跳的信道容量和每一跳的用户设备之间的社交关系对中继用户设备进行选择，可以避免仅考虑源用户设备和中继用户设备之间的信道容量而可能使得传输效率降低的技术问题，能够提高整个网络传输数据的效率。
步骤301中获取移动社交网络中每个用户设备的标识信息可以包括接收基站发送的移动社交网络中每个用户设备的标识信息。步骤301中，获取每个用户设备在不同社交平台的社交数据可以包括网络服务器根据从基站接收的每个用户设备的信息对用户设备进行搜索，得到每个用户设备在不同社交平台的社交数据，例如得到每个用户设备在不同社交平台分享不同项目的概率。
步骤302根据每个用户设备的标识信息和每个用户设备在不同社交平台的社交数据确定每两个用户设备之间的社交关系可以包括根据每个用户设备的信息和每个用户设备在不同社交平台分享不同项目的概率，得到每个用户设备的在每个社交平台分享不同项目的概率分布。对同一用户设备在不同社交平台分享不同项目的概率分布进行整合，得到每个用户设备在不同社交平台分享不同项目的概率分布。根据每个用户设备在不同社交平台分享不同项目的概率分布得到用户设备之间的社交关系。其中，每个用户设备在不同社交平台的社交数据包括每个用户设备在不同社交平台分享不同项目的概率。
下面结合图4至图6的具体例子更加详细地描述本发明的实施例。应注 意，这些例子只是为了帮助本领域技术人员更好地理解本发明实施例，而非限制本发明实施例的范围。
图4是本发明一个实施例的获取社交关系的示意性流程图。
401，网络服务器可以获取用户设备在不同社交平台选择不同项目进行分享的概率。
社交平台可以包括微信、微博、Facebook等。用户与用户设备一一对应，用户可以在社交平台进行各种社交活动，例如发布信息、交友、观看视频等。用户可以在社交平台分享各种项目，例如，分享娱乐视频、新闻网页等。用户在同一社交平台分享某一项目的概率可以为用户分享此项目的数目占浏览此项目的比例。例如，用户观看了100个娱乐视频，其中，分享了10个，那么可以认为用户分享娱乐视频的概率为10％。
用户的社交行为可以是由用户的兴趣爱好和用户之间的社交关系共同促成的，所以，可以根据用户的社交行为，例如，用户选择不同项目进行分享的历史记录得到用户之间社交关系的强弱。
402，采用核密度估计(kernel density estimation)的方式得到用户设备在任一社交平台分享不同项目的概率。
网络服务器可以对步骤401得到的用户分享项目的概率进行分析，并根据经验、采用核密度估计的方式获得用户在任一社交平台分享不同项目的概率。例如，网络服务器可以获得用户在微信上分享新闻网页的概率，还可以获得在微信上分享娱乐视频的概率。另外，网络服务器可以获得用户在微博中分享新闻网页的概率，还可以获得用户在微博中分享娱乐视频的概率，等等。
403，使用贝叶斯变参数模型，对同一用户设备在不同社交平台分享不同项目的概率分布进行整合，得到每个用户设备在不同社交平台分享不同项目的概率分布。
网络服务器可以对步骤402得到的用户在不同社交平台分享不同项目的概率进行整合，这里可以采用贝叶斯变参数模型，以得到每个用户在不同社交平台分享不同项目的概率分布。
404，根据每个用户设备在不同社交平台分享不同项目的概率分布计算不同用户设备之间的社交关系。
网络服务器可以根据每个用户在不同社交平台分享不同项目的概率分 布，计算不同用户之间的社交关系。社交关系可以用用户在不同社交平台分享不同项目的概率分布的相关性来表示。用户之间的社交关系的取值范围为0至1之间的数。
图5是本发明一个实施例的选择中继用户设备并进行数据传输的示意性流程图。
501，网络初始化。
502，网络服务器通过基站获取用户信息并计算用户设备之间的社交关系。
基站可以获取蜂窝小区区域内的用户标识信息，并将用户信息上报网络服务器。由用户标识信息可以得知蜂窝小区内有哪些用户设备。
网络服务器可以根据用户信息搜索用户设备及其在社交平台的历史记录，然后根据在不同社交平台的历史记录计算用户设备之间的社交关系。用户设备之间的社交关系可以包括源用户设备与候选中继用户设备之间的社交关系，以及目标用户设备与候选中继用户设备之间的社交关系。
503，基站获取用户设备之间的社交关系。
基站可以通过网络服务器将用户设备之间社交关系下载到本地。
504，基站判断目标用户设备的网络覆盖情况。
基站还可以为每个用户设备分配进行数据传输所需的频谱资源。基站在分配频谱资源之前，基站需要判断目标用户设备的网络覆盖情况。当目标用户设备处于弱蜂窝网络的覆盖下时，程序进行到步骤505。当判目标用户设备处于强蜂窝网络的覆盖下时，程序进行到步骤506。
505，基站直接为两个通信链路分配固定频率的频谱资源。
当目标用户设备处于弱蜂窝网络的覆盖下时，基站可以进行分配的频谱资源较多，可以为两个通信链路直接分配正交的频率频谱资源，这里的两个通信链路指源用户设备与中继用户设备之间的通信链路和中继用户设备与目标用户设备之间的通信链路。为通信链路分配频谱资源之后，程序进行到步骤507。
506，基站为两个通信链路选择分配干扰小的频谱资源。
当判目标用户设备处于强蜂窝网络的覆盖下时，频谱资源之间存在一定的干扰，基站为两个通信链路选择分配干扰小的频谱资源。为通信链路分配频谱资源之后，程序进行到步骤507。
507，基站从源用户设备获得信道状态信息，并计算信道容量。
在基站计算信道容量之前，基站可以先判断用户设备之间的通信链路是否可用。例如，当用户设备之间的通信链路上的信道状态信息大于或者等于通信链路的干扰余量时，该通信链路可以建立连接，即该通信链路可用。
基站可以从源用户设备获得信道状态信息，包括源用户设备与候选中继用户设备之间的信道状态信息和候选中继用户设备与目标用户设备之间的信道状态信息。基站可以根据信道状态信息利用香农公式计算得到信道容量，信道容量包括源用户设备与候选中继用户设备之间的信道容量和候选中继用户设备与目标用户设备之间的信道容量。
508，基站根据代价函数计算目标用户设备通过每个中继用户设备获得源用户设备的数据时所需支付的代价。
基站可以根据获得的用户设备之间的信道容量和社交关系，利用代价函数计算目标用户设备通过每个中继用户设备获得源用户设备的数据时所需支付的代价。
代价为信道容量和社交关系的函数，在上文中已有对代价函数的详细描述，为避免重复，在此不再详细赘述。
509，基站选择代价最小的中继用户设备作为备用中继用户设备。
基站可以从多个候选中继用户设备中选择通过代价函数计算得到的代价最小的用户设备作为实际传输数据所用的中继用户设备，即备用中继用户设备。
510，目标用户设备发起数据传输请求，并通过备用中继用户设备在基站分配的频谱资源上从源用户设备获取数据。
基站确定作为实际传输数据所用的备用中继用户设备之后，目标用户设备可以发起数据传输请求，并通过备用中继用户设备在基站分配的频谱资源上从源用户设备获取所需数据。
511，目标用户设备向运营商支付通信费用，向源用户设备和中继用户设备支付协助费用。
在数据传输完成之后，目标用户设备可以向运营商支付数据在源用户设备、中继用户设备和目标用户设备之间进行传输产生的通信费用。目标用户设备还可以向源用户设备和中继用户设备支付协助费用，用以激励源用户设备和中继用户设备协助目标用户设备获取数据。
512，流程结束。
图6是本发明一个实施例的目标用户设备付费激励模式的示意图。
图6中的网络系统包括运营商、源用户设备、中继用户设备和目标用户设备。当基站确定选用中继用户设备进行数据传输时，在目标用户设备发起数据传输请求之后，源用户设备中的数据经过第一阶段数据传输和第二阶段数据传输将数据传给目标用户设备。第一阶段数据传输为源用户设备向中继用户设备传输，第二阶段数据传输为中继用户设备向目标用户设备传输。
在数据传输完成之后，目标用户设备需要向运营商支付第一阶段和第二阶段数据传输产生的通信费用，并向源用户设备和中继用户设备分别支付一定的协助费用。通信费用与实际传输的数据流量成正相关。向源用户设备和中继用户设备支付的协助费用之和可以为通过代价函数计算所得的代价。协助费用可以激励源用户设备和中继用户设备协助目标用户设备获取数据。协助费用的多少与参与两个阶段数据传输的源用户设备、中继用户设备和目标用户设备之间的社交关系平均强度和不平衡强度相关。中继用户设备与源用户设备和目标用户设备之间的社交关系的平均强度越大，不平衡强度越小时，目标用户设备付出的协助费用越小。
现有技术方案当源用户设备通过中继用户设备将数据传输给目标用户设备时，传输过程会消耗中继用户设备的资源。这样，中继用户设备被动参与数据传输。本发明实施例通过引入上述激励和补偿机制，可以激励源用户设备和中继用户设备积极参与到数据的传输过程中，进而提高整个网络传输数据的效率。
上文中结合图2到图6，详细描述了根据本发明实施例的用于传输数据的方法，下面将结合图7到图10从目标用户设备和网络服务器的角度描述根据本发明实施例的用于传输数据的装置图。
图7是本发明一个实施例的基站的框图。图7的基站可以执行图2的方法。图7的基站包括第一获取单元11、第二获取单元12和确定单元13。
第一获取单元11用于获取源用户设备与N个候选中继用户设备中每个候选中继用户设备之间的第一社交关系和目标用户设备与每个候选中继用户设备之间的第二社交关系，其中，移动社交网络中包括N个候选中继用户设备，N为大于或者等于2的整数。
第二获取单元12用于获取源用户设备与每个候选中继用户设备之间的 第一信道容量和目标用户设备与每个候选中继用户设备之间的第二信道容量。
确定单元13用于根据第一获取单元获取的第一社交关系和第二社交关系，以及根据第二获取单元获取的第一信道容量和第二信道容量从N个候选中继用户设备中确定备用中继用户设备，以便源用户设备通过备用中继用户设备与目标用户设备进行D2D数据传输。
本发明实施例在源用户设备通过中继用户设备与目标用户设备之间进行数据传输时，通过根据每一跳的信道容量和每一跳的用户设备之间的社交关系确定备用中继用户设备，这样可以避免仅考虑源用户设备和中继用户设备之间的信道容量而可能使得传输效率降低的技术问题，能够提高整个网络传输数据的效率。
可选地，作为一个实施例，确定单元具体用于根据第一社交关系、第二社交关系、第一信道容量和第二信道容量确定源用户设备通过每个候选中继用户设备与目标用户设备进行D2D数据传输所需的代价，并从N个候选中继用户设备中选择代价最小的中继用户设备确定为备用中继用户设备。
可选地，作为一个实施例，确定单元具体用于根据下列公式确定所述代价：
Figure PCTCN2015085046-appb-000030
其中，
Figure PCTCN2015085046-appb-000031
为源用户设备通过第i候选中继用户设备与目标用户设备之间的信道容量，
Figure PCTCN2015085046-appb-000032
为源用户设备和第i候选中继用户设备之间的信道容量，
Figure PCTCN2015085046-appb-000033
为第i候选中继用户设备和目标用户设备之间的信道容量，
Figure PCTCN2015085046-appb-000034
为源用户设备和第i候选中继用户设备之间的社交关系，
Figure PCTCN2015085046-appb-000035
为第i候选中继用户设备和目标用户设备之间的社交关系，1≤i≤N。
可选地，作为一个实施例，第一获取单元具体用于接收网络服务器发送的第一社交关系和第二社交关系。
可选地，作为一个实施例，第二获取单元具体用于接收源用户设备发送的第一信道容量和第二信道容量。
根据本发明实施例的基站可对应于图2中本发明实施例的方法中移动社交网络中确定中继用户设备的方法，并且，基站中的各个单元/模块和上述其他操作和/或功能分别为了实现图2中所示方法的相应流程，为了简洁，在此不再赘述。
图8是本发明一个实施例的网络服务器的框图。图8的网络服务器包括获取单元21、确定单元22和发送单元23。
获取单元21用于获取移动社交网络中每个用户设备的标识信息和每个用户设备在不同社交平台的社交数据。
确定单元22用于根据获取单元获取的所述每个用户设备的标识信息和每个用户设备在不同社交平台的社交数据，确定每两个用户设备之间的社交关系；
发送单元23用于向基站发送确定单元确定的社交关系，以便基站根据社交关系确定备用中继用户设备，使得源用户设备通过备用中继用户设备与目标用户设备进行D2D数据传输。
本发明实施例在源用户设备通过中继用户设备与目标用户设备之间进行数据传输时，网络服务器可以通过计算获取用户设备之间的社交关系，这样可以使得目标用户设备通过根据每一跳的信道容量和每一跳的用户设备之间的社交关系对中继用户设备进行选择，可以避免仅考虑源用户设备和中继用户设备之间的信道容量而可能使得传输效率降低的技术问题，能够提高整个网络传输数据的效率。
可选地，作为一个实施例，确定单元具体用于根据每个用户设备的标识信息和每个用户设备在不同社交平台分享不同项目的概率，得到每个用户设备的在每个社交平台分享不同项目的概率分布，对同一用户设备在不同社交平台分享不同项目的概率分布进行整合，得到每个用户设备在不同社交平台分享不同项目的概率分布，根据每个用户设备在不同社交平台分享不同项目的概率分布得到用户设备之间的社交关系，其中，每个用户设备在不同社交平台的社交数据包括每个用户设备在不同社交平台分享不同项目的概率。
根据本发明实施例的网络服务器可对应于图3中本发明实施例的方法中的移动社交网络中确定社交关系的方法，并且，该装置中的各个单元/模块和上述其他操作和/或功能分别为了实现图3中所示方法的相应流程，为了简洁，在此不再赘述。
图9是本发明另一实施例的基站的框图。
图9的基站30包括处理器31、存储器32和接收机33。处理器31控制基站30的操作，并可用于处理信号。存储器32可以包括只读存储器和随机存取存储器，并向处理器31提供指令和数据。基站30的各个组件通过总线 系统34耦合在一起，其中总线系统34除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图中将各种总线都标为总线系统34。
上述本发明实施例揭示的方法可以应用于处理器31中，或者由处理器31实现。在实现过程中，上述方法的各步骤可以通过处理器31中的硬件的集成逻辑电路或者软件形式的指令完成。处理器31可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器32，处理器31读取存储器32中的信息，结合其硬件完成上述方法的步骤。
具体地，处理器31可以获取源用户设备与N个候选中继用户设备中每个候选中继用户设备之间的第一社交关系和目标用户设备与每个候选中继用户设备之间的第二社交关系，其中，移动社交网络中包括N个候选中继用户设备，N为大于或者等于2的整数。处理器31还可以获取源用户设备与每个候选中继用户设备之间的第一信道容量和目标用户设备与每个候选中继用户设备之间的第二信道容量。处理器31还可以根据第一社交关系、第二社交关系、第一信道容量和第二信道容量从N个候选中继用户设备中确定备用中继用户设备，以便源用户设备通过备用中继用户设备与目标用户设备进行D2D数据传输。
本发明实施例在源用户设备通过中继用户设备与目标用户设备之间进行数据传输时，通过根据每一跳的信道容量和每一跳的用户设备之间的社交关系确定备用中继用户设备，这样可以避免仅考虑源用户设备和中继用户设备之间的信道容量而可能使得传输效率降低的技术问题，能够提高整个网络传输数据的效率。
可选地，作为一个实施例，处理器31可以根据第一社交关系、所述第二社交关系、第一信道容量和第二信道容量确定源用户设备通过每个候选中 继用户设备与目标用户设备进行D2D数据传输所需的代价，并从N个候选中继用户设备中选择代价最小的中继用户设备确定为备用中继用户设备。
可选地，作为一个实施例，处理器31可以根据下列公式确定代价：
Figure PCTCN2015085046-appb-000036
其中，
Figure PCTCN2015085046-appb-000037
为源用户设备通过第i候选中继用户设备与目标用户设备之间的信道容量，
Figure PCTCN2015085046-appb-000038
为源用户设备和所述第i候选中继用户设备之间的信道容量，
Figure PCTCN2015085046-appb-000039
为第i候选中继用户设备和目标用户设备之间的信道容量，
Figure PCTCN2015085046-appb-000040
为源用户设备和第i候选中继用户设备之间的社交关系，
Figure PCTCN2015085046-appb-000041
为第i候选中继用户设备和目标用户设备之间的社交关系，1≤i≤N。
可选地，作为一个实施例，接收机33可以用于接收网络服务器发送的第一社交关系和第二社交关系。
可选地，作为一个实施例，接收机33可以用于接收所述源用户设备发送的第一信道容量和第二信道容量。
为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
图10是本发明另一实施例的网路服务器的框图。
图10的网路服务器40包括处理器41、存储器42和发射机43。处理器41控制网路服务器40的操作，并可用于处理信号。存储器42可以包括只读存储器和随机存取存储器，并向处理器41提供指令和数据。网路服务器40的各个组件通过总线系统44耦合在一起，其中总线系统34除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图中将各种总线都标为总线系统44。
上述本发明实施例揭示的方法可以应用于处理器41中，或者由处理器41实现。在实现过程中，上述方法的各步骤可以通过处理器41中的硬件的集成逻辑电路或者软件形式的指令完成。处理器41可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电 可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器42，处理器41读取存储器42中的信息，结合其硬件完成上述方法的步骤。
具体地，处理器41可以获取移动社交网络中每个用户设备的标识信息和每个用户设备在不同社交平台的社交数据，根据每个用户设备的标识信息和每个用户设备在不同社交平台的社交数据，确定每两个用户设备之间的社交关系。发射机43可以向基站发送社交关系，以便基站根据所述社交关系确定备用中继用户设备，使得源用户设备通过备用中继用户设备与目标用户设备进行D2D数据传输。
本发明实施例在源用户设备通过中继用户设备与目标用户设备之间进行数据传输时，网络服务器可以通过计算获取用户设备之间的社交关系，这样可以使得目标用户设备通过根据每一跳的信道容量和每一跳的用户设备之间的社交关系对中继用户设备进行选择，可以避免仅考虑源用户设备和中继用户设备之间的信道容量而可能使得传输效率降低的技术问题，能够提高整个网络传输数据的效率。
可选地，作为一个实施例，处理器41可以根据每个用户设备的标识信息和每个用户设备在不同社交平台分享不同项目的概率，得到每个用户设备的在每个社交平台分享不同项目的概率分布。对同一用户设备在不同社交平台分享不同项目的概率分布进行整合，得到每个用户设备在不同社交平台分享不同项目的概率分布。根据每个用户设备在不同社交平台分享不同项目的概率分布得到用户设备之间的社交关系。其中，每个用户设备在不同社交平台的社交数据包括每个用户设备在不同社交平台分享不同项目的概率。
为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本发明的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
应理解，在本发明的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应 对本发明实施例的实施过程构成任何限定。
应理解，在本发明实施例中，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
本领域普通技术人员可以理解，实现上述方法实施方式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，所述的程序可以存储于计算机可读取存储介质中，该程序在执行时，可以包括前述本发明基于MIP技术的通信方法各个实施方式的内容。这里所称得的存储介质，如：ROM/RAM、磁碟、光盘等。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部 分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (14)

  1. 一种移动社交网络中确定中继用户设备的方法，其特征在于，包括：
    获取源用户设备与N个候选中继用户设备中每个候选中继用户设备之间的第一社交关系和目标用户设备与所述每个候选中继用户设备之间的第二社交关系，其中，所述移动社交网络中包括所述N个候选中继用户设备，N为大于或者等于2的整数；
    获取所述源用户设备与所述每个候选中继用户设备之间的第一信道容量和所述目标用户设备与所述每个候选中继用户设备之间的第二信道容量；
    根据所述第一社交关系、所述第二社交关系、所述第一信道容量和所述第二信道容量从所述N个候选中继用户设备中确定备用中继用户设备，以便所述源用户设备通过所述备用中继用户设备与所述目标用户设备进行D2D数据传输。
  2. 如权利要求1所述的方法，其特征在于，所述根据所述第一社交关系、所述第二社交关系、所述第一信道容量和所述第二信道容量从所述N个候选中继用户设备中确定备用中继用户设备包括：
    根据所述第一社交关系、所述第二社交关系、所述第一信道容量和所述第二信道容量确定所述源用户设备通过所述每个候选中继用户设备与所述目标用户设备进行D2D数据传输所需的代价；
    从所述N个候选中继用户设备中选择代价最小的中继用户设备确定为所述备用中继用户设备。
  3. 如权利要求2所述的方法，其特征在于，所述根据所述第一社交关系、所述第二社交关系、所述第一信道容量和所述第二信道容量确定所述源用户设备通过所述每个候选中继用户设备与所述目标用户设备进行D2D数据传输所需的代价包括根据下列公式确定所述代价：
    Figure PCTCN2015085046-appb-100001
    其中，
    Figure PCTCN2015085046-appb-100002
    为所述源用户设备通过第i候选中继用户设备与所述目标用户设备之间的信道容量，
    Figure PCTCN2015085046-appb-100003
    为所述源用户设备和所述第i候选中继用户设备之间的信道容量，
    Figure PCTCN2015085046-appb-100004
    为所述第i候选中继用户设备和所述目标用户设备之间的信道容量，
    Figure PCTCN2015085046-appb-100005
    为所述源用户设备和所述第i候选中继用户设备之间的社交关系，
    Figure PCTCN2015085046-appb-100006
    为所述第i候选中继用户设备和所述目标用户设备之间的社交关系， 1≤i≤N。
  4. 如权利要求1-3中任一项所述的方法，其特征在于，所述获取源用户设备与N个候选中继用户设备中每个候选中继用户设备之间的第一社交关系和目标用户设备与所述每个候选中继用户设备之间的第二社交关系包括：
    接收网络服务器发送的所述第一社交关系和所述第二社交关系。
  5. 如权利要求1-4中任一项所述的方法，其特征在于，所述获取所述源用户设备与所述每个候选中继用户设备之间的第一信道容量和所述目标用户设备与所述每个候选中继用户设备之间的第二信道容量包括：
    接收所述源用户设备发送的所述第一信道容量和所述第二信道容量。
  6. 一种移动社交网络中确定社交关系的方法，其特征在于，包括：
    获取移动社交网络中每个用户设备的标识信息和所述每个用户设备在不同社交平台的社交数据；
    根据所述每个用户设备的标识信息和所述每个用户设备在不同社交平台的社交数据，确定每两个用户设备之间的社交关系；
    向基站发送所述社交关系，以便所述基站根据所述社交关系确定备用中继用户设备，使得源用户设备通过所述备用中继用户设备与目标用户设备进行D2D数据传输。
  7. 如权利要求6所述的方法，其特征在于，所述根据所述每个用户设备的信息和所述每个用户设备在不同社交平台的社交数据，确定每两个用户设备之间的社交关系包括：
    根据所述每个用户设备的标识信息和所述每个用户设备在不同社交平台分享不同项目的概率，得到所述每个用户设备的在每个社交平台分享不同项目的概率分布；
    对同一用户设备在不同社交平台分享不同项目的概率分布进行整合，得到每个用户设备在不同社交平台分享不同项目的概率分布；
    根据所述每个用户设备在不同社交平台分享不同项目的概率分布得到用户设备之间的社交关系；
    其中，所述每个用户设备在不同社交平台的社交数据包括每个用户设备在不同社交平台分享不同项目的概率。
  8. 一种基站，其特征在于，包括：
    第一获取单元，用于获取源用户设备与N个候选中继用户设备中每个候选中继用户设备之间的第一社交关系和目标用户设备与所述每个候选中继用户设备之间的第二社交关系，其中，所述移动社交网络中包括所述N个候选中继用户设备，N为大于或者等于2的整数；
    第二获取单元，用于获取所述源用户设备与所述每个候选中继用户设备之间的第一信道容量和所述目标用户设备与所述每个候选中继用户设备之间的第二信道容量；
    确定单元，用于根据所述第一获取单元获取的所述第一社交关系和所述第二社交关系，以及根据所述第二获取单元获取的所述第一信道容量和所述第二信道容量从所述N个候选中继用户设备中确定备用中继用户设备，以便所述源用户设备通过所述备用中继用户设备与所述目标用户设备进行D2D数据传输。
  9. 如权利要求8所述的基站，其特征在于，所述确定单元具体用于根据所述第一社交关系、所述第二社交关系、所述第一信道容量和所述第二信道容量确定所述源用户设备通过所述每个候选中继用户设备与所述目标用户设备进行D2D数据传输所需的代价，并从所述N个候选中继用户设备中选择代价最小的中继用户设备确定为所述备用中继用户设备。
  10. 如权利要求8或9所述的基站，其特征在于，所述确定单元具体用于根据下列公式确定所述代价：
    Figure PCTCN2015085046-appb-100007
    其中，
    Figure PCTCN2015085046-appb-100008
    为所述源用户设备通过第i候选中继用户设备与所述目标用户设备之间的信道容量，
    Figure PCTCN2015085046-appb-100009
    为所述源用户设备和所述第i候选中继用户设备之间的信道容量，
    Figure PCTCN2015085046-appb-100010
    为所述第i候选中继用户设备和所述目标用户设备之间的信道容量，
    Figure PCTCN2015085046-appb-100011
    为所述源用户设备和所述第i候选中继用户设备之间的社交关系，
    Figure PCTCN2015085046-appb-100012
    为所述第i候选中继用户设备和所述目标用户设备之间的社交关系，1≤i≤N。
  11. 如权利要求8-10中任一项所述的基站，其特征在于，所述第一获取单元具体用于接收网络服务器发送的所述第一社交关系和所述第二社交关系。
  12. 如权利要求8-11中任一项所述的基站，其特征在于，所述第二获取 单元具体用于接收所述源用户设备发送的所述第一信道容量和所述第二信道容量。
  13. 一种网络服务器，其特征在于，包括：
    获取单元，用于获取移动社交网络中每个用户设备的标识信息和所述每个用户设备在不同社交平台的社交数据；
    确定单元，用于根据所述获取单元获取的所述每个用户设备的标识信息和所述每个用户设备在不同社交平台的社交数据，确定每两个用户设备之间的社交关系；
    发送单元，用于向基站发送所述确定单元确定的所述社交关系，以便所述基站根据所述社交关系确定备用中继用户设备，使得源用户设备通过所述备用中继用户设备与目标用户设备进行D2D数据传输。
  14. 如权利要求13所述的网络服务器，其特征在于，所述确定单元具体用于根据所述每个用户设备的标识信息和所述每个用户设备在不同社交平台分享不同项目的概率，得到所述每个用户设备的在每个社交平台分享不同项目的概率分布，对同一用户设备在不同社交平台分享不同项目的概率分布进行整合，得到每个用户设备在不同社交平台分享不同项目的概率分布，根据所述每个用户设备在不同社交平台分享不同项目的概率分布得到用户设备之间的社交关系，其中，所述每个用户设备在不同社交平台的社交数据包括每个用户设备在不同社交平台分享不同项目的概率。
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