TW201509223A - Methods, apparatuses, and system for determining communication resources for a D2D pair - Google Patents

Methods, apparatuses, and system for determining communication resources for a D2D pair Download PDF

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TW201509223A
TW201509223A TW103115541A TW103115541A TW201509223A TW 201509223 A TW201509223 A TW 201509223A TW 103115541 A TW103115541 A TW 103115541A TW 103115541 A TW103115541 A TW 103115541A TW 201509223 A TW201509223 A TW 201509223A
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interference
base station
pair
noise
power
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TW103115541A
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Chinese (zh)
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Kai Yang
Yong Liu
Yun Deng
li-yu Cai
Chong-Xian Zhong
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Alcatel Lucent
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

An objective of the present invention is providing a method, apparatus, and system for determining a communication resource of a D2D pair. The method according to the present invention comprises: obtaining first related information corresponding to the D2D pair, second related information corresponding to the to-be-selected device, and third related information corresponding to the base station; deciding whether the D2D pair fulfills a predetermined condition based on the first, second and third related information in conjunction with a first SINR threshold corresponding to a receiving side of the D2D pair and a second SINR threshold corresponding to the base station; if the D2D pair fulfills the predetermined condition, selecting a communication resource of the to-be-selected device and allocate it to the D2D pair for performing a D2D communication. The technical solution according to the present invention can simultaneously guarantee the communication quality of the cellular user equipment and the communication quality of the D2D pair.

Description

確定裝置對裝置(D2D)對的通信資源的方法、裝置和系統 Method, device and system for determining communication resources of device-to-device (D2D) pairs

本發明關於通信技術領域，尤其關於一種確定裝置對裝置(D2D)對的通信資源的方法、裝置和系統。 The present invention relates to the field of communication technologies, and more particularly to a method, apparatus and system for determining communication resources of a device-to-device (D2D) pair.

由於D2D(Device-to-Device，裝置對裝置)技術能夠有效地增加系統的頻譜效率，並且減少D2D對(Device-to-Device Pair)中的使用者設備的功率消耗，因而得到了越來越多的關注。在一個支援D2D技術的網路中，無線電資源可同時被蜂窩使用者設備以及D2D對使用，從而使得系統資源可被緊湊的複用。然而，上行鏈路相比下行鏈路而言，尚未能得到充分利用，因此大多數關於D2D傳輸的研究主要關注如何使D2D對能夠複用LTE系統的上行鏈路頻譜方面。 Since the D2D (Device-to-Device) technology can effectively increase the spectrum efficiency of the system and reduce the power consumption of the user equipment in the Device-to-Device Pair, it is getting more and more More attention. In a network that supports D2D technology, radio resources can be used by both cellular user equipment and D2D pairs, allowing system resources to be compactly multiplexed. However, the uplink is not fully utilized compared to the downlink, so most research on D2D transmission focuses on how to enable the D2D pair to multiplex the uplink spectrum aspect of the LTE system.

在共用上行鏈路資源的模式下，尤其是當D2D對相對較為靠近基站的情況下，基站可能收到來自D2D對的發射端的極大干擾。 In the mode of sharing uplink resources, especially when the D2D pair is relatively close to the base station, the base station may receive significant interference from the transmitting end of the D2D pair.

現有的一些用於解決此類問題的技術方案，主要根據 D2D對與蜂窩使用者設備之間的干擾情況，限定D2D對的發射端的發射功率，以減少其發射端對於基站的干擾。然而，由於蜂窩使用者設備同時也會干擾D2D對的發射端，因此，此類方式並不能在足夠短的時間內，例如幾毫秒內，較好的解決該問題。 Some existing technical solutions for solving such problems are mainly based on The interference between the D2D pair and the cellular user equipment defines the transmission power of the transmitting end of the D2D pair to reduce the interference of the transmitting end to the base station. However, since the cellular user equipment also interferes with the transmitting end of the D2D pair, such a method cannot solve the problem better in a sufficiently short time, for example, within a few milliseconds.

本發明的目的是提供一種確定D2D對的通信資源的方法、裝置和系統。 It is an object of the present invention to provide a method, apparatus and system for determining communication resources for a D2D pair.

根據本發明的一個方面，提供一種在基站中確定D2D對的通信資源的方法，其中，所述基站對應至少一個蜂窩使用者設備，其中，對於所述至少一個蜂窩使用者設備中的一個待選設備，所述方法包括：a獲取與所述D2D對相對應的第一相關資訊、與所述待選設備對應的第二相關資訊、以及與所述基站對應的第三相關資訊；b基於所述第一、第二以及第三相關資訊，並結合與所述D2D對的接收端相對應的第一信干噪比閾值，以及與所述基站相對應的第二信干噪比閾值，來判斷所述D2D對是否滿足預定條件；c當所述D2D對滿足所述預定條件時，選擇所述待選設備的通信資源配置給所述D2D對，以供其進行D2D通信。 According to an aspect of the present invention, a method for determining a communication resource of a D2D pair in a base station, wherein the base station corresponds to at least one cellular user equipment, wherein one of the at least one cellular user equipment is to be selected The device includes: a acquiring first related information corresponding to the D2D pair, second related information corresponding to the candidate device, and third related information corresponding to the base station; b Determining the first, second, and third related information, and combining the first signal to interference and noise ratio threshold corresponding to the receiving end of the D2D pair, and the second signal to interference and noise ratio threshold corresponding to the base station, Determining whether the D2D pair satisfies a predetermined condition; c, when the D2D pair satisfies the predetermined condition, selecting a communication resource configuration of the candidate device to the D2D pair for D2D communication.

根據本發明的一個方面，還提供了一種確定D2D對 的通信資源的基站，所述基站對應至少一個蜂窩使用者設備，其中，所述基站包括以下裝置，以對於所述至少一個蜂窩使用者設備中的一個待選設備執行操作：第一獲取裝置，用於獲取與所述D2D對相對應的第一相關資訊、與所述待選設備對應的第二相關資訊、以及與所述基站對應的第三相關資訊；判斷裝置，用於基於所述第一、第二以及第三相關資訊，並結合與所述D2D對的接收端相對應的第一信干噪比閾值，以及與所述基站相對應的第二信干噪比閾值，來判斷所述D2D對是否滿足預定條件；第一確定裝置，用於當所述D2D對滿足所述預定條件時，確定所述D2D對可複用所述待選設備的通信資源以進行D2D通信。 According to an aspect of the present invention, there is also provided a method for determining a D2D pair a base station of a communication resource, the base station corresponding to at least one cellular user equipment, wherein the base station includes means for performing an operation on one of the at least one cellular user equipment: a first acquisition device, And configured to acquire first related information corresponding to the D2D pair, second related information corresponding to the candidate device, and third related information corresponding to the base station; and determining means, configured to be based on the first First, second, and third related information, and combining the first signal to interference and noise ratio threshold corresponding to the receiving end of the D2D pair, and the second signal to interference and noise ratio threshold corresponding to the base station, to determine Determining whether the D2D pair satisfies a predetermined condition; the first determining means, when the D2D pair satisfies the predetermined condition, determining that the D2D pair can multiplex a communication resource of the candidate device for D2D communication.

根據本發明的一個方面，還提供了一種通信系統，其中，所述通信系統包括所述基站，與所述基站對應的至少一個蜂窩使用者設備，以及所述D2D對。 According to an aspect of the present invention, a communication system is further provided, wherein the communication system comprises the base station, at least one cellular user equipment corresponding to the base station, and the D2D pair.

與現有技術相比，本發明具有以下優點：根據本發明的技術方案，透過在為D2D對分配通信資源時判斷其是否會對eNB造成過多干擾，從而在滿足一定的信干噪比條件的情況下，為D2D對分配合適的通信資源，以同時確保蜂窩使用者設備的通信品質和D2D對的通信品質。 Compared with the prior art, the present invention has the following advantages: according to the technical solution of the present invention, when a communication resource is allocated for a D2D pair, it is judged whether it causes excessive interference to the eNB, so that a certain signal to interference and noise ratio condition is satisfied. Next, allocate appropriate communication resources for the D2D pair to ensure the communication quality of the cellular user equipment and the communication quality of the D2D pair.

11‧‧‧獲取裝置 11‧‧‧Getting device

12‧‧‧判斷裝置 12‧‧‧Judgement device

13‧‧‧第一確定裝置 13‧‧‧First determining device

21‧‧‧發送裝置 21‧‧‧Send device

透過閱讀參照以下附圖所作的對非限制性實施例所作 的詳細描述，本發明的其它特徵、目的和優點將會變得更明顯：圖1示意出了根據本發明的一種通信系統；圖2示意出了根據本發明的一種用於確定D2D對的通信資源的系統方法流程圖；圖3示意出了根據本發明的一種用於確定D2D對的通信資源的通信系統的結構示意圖；附圖中相同或相似的附圖標記代表相同或相似的部件。 By way of reading the following non-limiting examples made with reference to the accompanying drawings Other features, objects, and advantages of the present invention will become more apparent. FIG. 1 illustrates a communication system in accordance with the present invention. FIG. 2 illustrates a communication for determining a D2D pair in accordance with the present invention. A system flow diagram of a resource; FIG. 3 is a schematic diagram showing the structure of a communication system for determining communication resources of a D2D pair according to the present invention; the same or similar reference numerals in the drawings denote the same or similar components.

下面結合附圖對本發明作進一步詳細描述。 The invention is further described in detail below with reference to the accompanying drawings.

圖1示意出了一種通信系統，所述通信系統可支援D2D通信。其中，根據本發明的通信系統，包括至少一個基站，以及與其對應的至少一個蜂窩使用者設備和至少一個D2D對。 Figure 1 illustrates a communication system that can support D2D communication. Wherein, the communication system according to the present invention comprises at least one base station, and at least one cellular user equipment corresponding thereto and at least one D2D pair.

其中，所述通信系統包括但不限於為基於3GPP LTE的無線通訊系統。其中，所述基站包括但不限於BS、e-NodeB、家庭基站、宏基站等。所述蜂窩使用者設備包括能以無線方式直接或間接和基站通信的電子裝置，包括但不限於手機、PDA等。所述D2D對包括兩個配對設備，該兩個配對設備之間，透過採用D2D通信技術建立通信鏈路，以透過複用相應的蜂窩通信鏈路的通信資源，直接在兩個配對設備對之間進行通信。 The communication system includes, but is not limited to, a 3GPP LTE-based wireless communication system. The base station includes but is not limited to a BS, an e-NodeB, a home base station, a macro base station, and the like. The cellular user equipment includes electronic devices that can communicate directly or indirectly with a base station in a wireless manner, including but not limited to mobile phones, PDAs, and the like. The D2D pair includes two paired devices, and the communication link is established by using D2D communication technology between the two paired devices to directly multiplex the communication resources of the corresponding cellular communication link, directly on the two paired devices. Communicate between.

所述D2D對中包含一個發射端與一個接收端；在僅支持單向通信的D2D對中，所述發射端和接收端可分別位於兩個使用者設備中，在支援雙向通信的D2D對中，各個使用者設備均包含發射端和接收端。 The D2D pair includes a transmitting end and a receiving end; in a D2D pair that only supports one-way communication, the transmitting end and the receiving end can be respectively located in two user equipments, in a D2D pair supporting two-way communication. Each user equipment includes a transmitting end and a receiving end.

需要說明的是，本領域技術人員應該理解，所述通信系統、基站、以及使用者設備並非以所述為限，任何可應用于本發明的系統、基站以及使用者設備均應包含在本發明的保護範圍內。 It should be noted that those skilled in the art should understand that the communication system, the base station, and the user equipment are not limited thereto, and any system, base station, and user equipment applicable to the present invention should be included in the present invention. Within the scope of protection.

圖2示意出了根據本發明的一種用於確定D2D對的通信資源的系統方法流程圖。根據本發明的方法，包括由D2D對執行的步驟S21、由基站執行的步驟S11、步驟S12以及步驟S13。 2 illustrates a flow chart of a system method for determining communication resources for a D2D pair in accordance with the present invention. The method according to the present invention includes step S21 performed by the D2D pair, step S11, step S12, and step S13 performed by the base station.

其中，根據本發明的方法，基站由其所對應的至少一個蜂窩使用者設備中選擇一個待選設備，並基於該待選設備，執行步驟S11至步驟S13。 According to the method of the present invention, the base station selects one candidate device from the at least one cellular user equipment corresponding thereto, and performs step S11 to step S13 based on the candidate device.

其中，基站基於預定的選擇策略，由所述至少一個蜂窩用設備中選擇一個作為待選設備。 The base station selects one of the at least one cellular device as the candidate device based on a predetermined selection policy.

較佳地，基站基於預定的選擇策略，由其所對應的至少一個蜂窩使用者設備中選擇預定個數的蜂窩使用者設備，並由該預定個數的蜂窩使用者設備中，選擇一個待選設備。 Preferably, the base station selects a predetermined number of cellular user equipments from at least one of the at least one cellular user equipment corresponding to the predetermined selection policy, and selects one of the predetermined number of cellular user equipments to be selected. device.

在步驟S21中，D2D對向基站發送所述D2D對之間的D2D鏈路的第一相關資訊。 In step S21, the D2D sends the first related information of the D2D link between the D2D pairs to the base station.

較佳地，所述D2D對透過接收端或發射端向基站發 送所述D2D對之間的D2D鏈路的第一相關資訊。 Preferably, the D2D pair is sent to the base station through the receiving end or the transmitting end. Sending first related information of the D2D link between the D2D pairs.

其中，所述第一相關資訊包括：1)所述D2D對之間的D2D鏈路的第一衰落資訊，所述第一衰落資訊用於指示從所述發射端到所述接收端之間的功率衰落情況；2)所述D2D對中的所述接收端的第一干噪資訊；所述第一干噪資訊用於指示所述接收端的雜訊以及干擾功率相關資訊。 The first related information includes: 1) first fading information of the D2D link between the D2D pairs, where the first fading information is used to indicate between the transmitting end and the receiving end. a power fading condition; 2) first dry noise information of the receiving end of the D2D pair; the first dry noise information is used to indicate noise and interference power related information of the receiving end.

較佳地，所述第一干噪資訊包括所述接收端的第一雜訊功率和第一干擾功率。 Preferably, the first dry noise information includes a first noise power and a first interference power of the receiving end.

更較佳地，當D2D對檢測到第一干擾功率遠大於第一雜訊功率時，D2D對僅向基站上報第一干擾功率；相似地，當D2D對檢測到的第一雜訊功率遠大於第一干擾功率時，D2D對僅向基站上報第一雜訊功率。 More preferably, when the D2D pair detects that the first interference power is much larger than the first noise power, the D2D pair reports only the first interference power to the base station; similarly, when the D2D pair detects the first noise power is large When the first interference power is used, the D2D pair reports only the first noise power to the base station.

較佳地，根據本發明的方法，透過在D2D鏈路中***參考通道，以用於測算包含於第一相關資訊中的第一衰落資訊。更較佳地，所述參考通道還可用於D2D鏈路的解調。例如，在D2D鏈路中***類似LTE系統的上行鏈路解調參考信號(DMRS，Demodulation Reference Signals)的信號，以實現測算第一衰落資訊以及對於D2D鏈路的解調操作。 Preferably, according to the method of the present invention, the reference channel is inserted in the D2D link for measuring the first fading information included in the first related information. More preferably, the reference channel can also be used for demodulation of a D2D link. For example, a signal similar to an LTE system's uplink demodulation reference signal (DMRS) is inserted in the D2D link to implement measurement of the first fading information and demodulation operation for the D2D link.

接著，在步驟S11中，基站獲取與所述D2D對相對應的第一相關資訊、與所述待選設備對應的第二相關資訊、以及與所述基站對應的第三相關資訊。 Next, in step S11, the base station acquires first related information corresponding to the D2D pair, second related information corresponding to the candidate device, and third related information corresponding to the base station.

其中，第一相關資訊已在前述步驟S21中進行說明， 此處不再贅述。 The first related information has been described in the foregoing step S21. I will not repeat them here.

其中，所述第二相關資訊包括：1)所述待選設備與所述基站之間的第二衰落資訊；所述第二衰落資訊用於指示從所述待選設備到所述基站之間的功率衰落情況；2)所述待選設備的第一發射功率。 The second related information includes: 1) second fading information between the candidate device and the base station; and the second fading information is used to indicate that the device to be selected is between the base station and the base station. Power fading condition; 2) the first transmit power of the device to be selected.

其中，所述第三相關資訊包括：1)所述基站與所述D2D對的發射端之間的第三衰落資訊，其中，所述第三衰落資訊用於指示從所述發射端到所述基站之間的功率衰落情況；2)所述基站的第二干噪資訊，所述第二干噪資訊用於指示所述基站的雜訊以及小區間干擾功率的相關資訊。 The third related information includes: 1) third fading information between the base station and a transmitting end of the D2D pair, where the third fading information is used to indicate from the transmitting end to the The power fading condition between the base stations; 2) the second dry noise information of the base station, where the second dry noise information is used to indicate information about the noise of the base station and inter-cell interference power.

其中，基站採用不同的方式來獲取所述第一、第二以及第三相關資訊中所包含的各類資訊。 The base station adopts different manners to obtain various types of information included in the first, second, and third related information.

較佳地，基站分別接收由D2D對的接收端上報的第一相關資訊，以及由待選設備上報的第一發射功率。 Preferably, the base station receives the first related information reported by the receiving end of the D2D pair and the first transmitting power reported by the device to be selected.

較佳地，基站透過測量與待選設備對應的上行探測參考資訊(SRS，Sounding Reference Signal)或者上行DMRS來確定與待選設備對應的第二衰落資訊。 Preferably, the base station determines the second fading information corresponding to the to-be-selected device by measuring an uplink sounding reference information (SRS, Sounding Reference Signal) or an uplink DMRS corresponding to the device to be selected.

較佳地，基站透過測量獲得自身與所述D2D對的發射端之間的第三衰落資訊，以及自身的第二干噪資訊。 Preferably, the base station obtains the third fading information between itself and the transmitting end of the D2D pair through measurement, and the second dry noise information of the base station.

接著，在步驟S12中，基站基於所述第一、第二以及第三相關資訊，並結合與所述D2D對的接收端相對應的第一信干噪比閾值，以及與所述基站相對應的第二信干噪比閾值，來判斷所述D2D對是否滿足預定條件。 Next, in step S12, the base station is based on the first, second, and third related information, and combines a first signal to interference and noise ratio threshold corresponding to the receiving end of the D2D pair, and corresponds to the base station. The second signal to interference ratio threshold is used to determine whether the D2D pair satisfies a predetermined condition.

其中，所述第一信干噪比閾值基於所述D2D對的D2D連結的服務品質資訊(QoS，Quality of Service)來確定。優選地，不同的服務品質請求分別對應不同的第一信干噪比閾值。 The first signal to interference and noise ratio threshold is determined based on a QoS (Quality of Service) of the D2D link of the D2D pair. Preferably, different service quality requests respectively correspond to different first signal to interference and noise ratio thresholds.

其中，所述第二信干噪比閾值基於所述待選設備與所述基站之間的蜂窩連結的QoS資訊來確定。較佳地，不同的服務品質請求分別對應不同的第二信干噪比閾值。 The second signal to interference and noise ratio threshold is determined based on QoS information of a cellular connection between the candidate device and the base station. Preferably, different service quality requests respectively correspond to different second signal to interference and noise ratio thresholds.

其中，本領域技術人員應可根據實際情況和需求來獲得根據QoS確定相應的信干噪比閾值的方式，在此不再贅述。 A method for determining a corresponding signal to interference and noise ratio threshold according to QoS may be obtained by a person skilled in the art according to actual conditions and requirements, and details are not described herein again.

其中，所述步驟S12的實施方式包括以下任一種： The implementation manner of the step S12 includes any one of the following:

1)所述第一衰落資訊包括所述發射端與所述接收端之間的第一通道衰落，所述第三衰落資訊包括所述發射端與所述基站之間的第三通道衰落，所述第一干噪資訊包括第一雜訊功率和第一干擾功率，所述第二干噪資訊包括第二雜訊功率和第二干擾功率，其中，所述預定條件包括如下所示的不等式： 其中，h CD為所述第三通道衰落，h D為所述第一通道衰落，γ Dth為所述第一信干噪比閾值，P CUE為所述第一發射功率，h C為所述第二通道衰落；γ Cth為所述第二信干噪比閾值，ID為所述第一干擾功率，N 0D為所述第一雜訊功率，IC 為所述第二干擾功率，N 0C為所述第二雜訊功率。 1) The first fading information includes a first channel fading between the transmitting end and the receiving end, and the third fading information includes a third channel fading between the transmitting end and the base station, where The first dry noise information includes a first noise power and a first interference power, and the second dry noise information includes a second noise power and a second interference power, wherein the predetermined condition includes an inequality as follows: Wherein h CD is the third channel fading, h D is the first channel fading, γ Dth is the first signal to interference and noise ratio threshold, P CUE is the first transmit power, and h C is the a second channel fading; γ Cth is the second signal to interference and noise ratio threshold, I D is the first interference power, N 0D is the first noise power, and I C is the second interference power, N 0C is the second noise power.

具體地，所述基站透過判斷步驟S11中所獲得的各項資訊的值是否滿足不等式(1)，當滿足不等式(1)時，確定所述D2D對滿足預定條件。 Specifically, the base station determines whether the value of each piece of information obtained in step S11 satisfies inequality (1), and when the inequality (1) is satisfied, determines that the D2D pair satisfies a predetermined condition.

2)所述第一衰落資訊包括所述D2D鏈路的第一路徑距離以及相應的第一路徑衰落指數；所述第三衰落資訊包括所述發射端與所述基站間的第二路徑距離以及相應的第二路徑衰落指數，所述第一干噪資訊包括第一雜訊功率和第一干擾功率，所述第二干噪資訊包括第二雜訊功率和第二干擾功率，其中，所述預定條件包括如下所示的不等式： 其中，d CD為所述第二路徑距離，β為所述第二路徑衰落指數，d D為所述第一路徑距離，α為所述第一路徑衰落指數，γ Dth為所述第一信干噪比閾值，P CUE為所述第一發射功率，h C為所述第二通道衰落；γ Cth為所述第二信干噪比閾值，ID為所述第一干擾功率，N 0D為所述第一雜訊功率，IC為所述第二干擾功率，N 0C為所述第二雜訊功率。 2) the first fading information includes a first path distance of the D2D link and a corresponding first path fading index; the third fading information includes a second path distance between the transmitting end and the base station, and Corresponding second path fading index, the first dry noise information includes a first noise power and a first interference power, and the second dry noise information includes a second noise power and a second interference power, where The predetermined conditions include the inequalities shown below: Where d CD is the second path distance, β is the second path fading index, d D is the first path distance, α is the first path fading index, and γ Dth is the first letter a dry noise ratio threshold, P CUE is the first transmit power, h C is the second channel fading; γ Cth is the second signal to interference and noise ratio threshold, and I D is the first interference power, N 0D For the first noise power, I C is the second interference power, and N 0C is the second noise power.

具體地，所述基站透過判斷步驟S11中所獲得的各項資訊的值是否滿足不等式(2)，當滿足不等式(2)時，確定所述D2D對滿足預定條件。 Specifically, the base station determines whether the value of each piece of information obtained in step S11 satisfies inequality (2), and when the inequality (2) is satisfied, determines that the D2D pair satisfies a predetermined condition.

根據本發明的一個較佳實施例，所述預定條件包括所 述D2D接收端的第一信干噪比滿足所述第一信干噪比閾值，並且所述基站的第二信干噪比滿足所述第二信干噪比閾值，其中，根據本發明的方法還包括步驟S14(圖未示)，步驟S12包括步驟S121(圖未示)以及步驟S122(圖未示)。 According to a preferred embodiment of the invention, the predetermined condition comprises The first signal to interference and noise ratio of the D2D receiving end satisfies the first signal to interference and noise ratio threshold, and the second signal to interference and noise ratio of the base station satisfies the second signal to interference and noise ratio threshold, wherein the method according to the present invention Further, step S14 (not shown) is included, and step S12 includes step S121 (not shown) and step S122 (not shown).

在步驟S14中，基站獲取所述發射端相對於所述基站的第二發射功率。 In step S14, the base station acquires a second transmit power of the transmitting end relative to the base station.

在步驟S121中，基站基於所獲得的第一相關資訊以及所述D2D發射功率資訊，確定所述第一信干噪比，並基於所述第二相關資訊、第三相關資訊以及所述D2D發射功率資訊，確定所述第二信干噪比。 In step S121, the base station determines the first signal to interference and noise ratio based on the obtained first related information and the D2D transmission power information, and based on the second related information, the third related information, and the D2D transmission. Power information, determining the second signal to interference and noise ratio.

根據本實施例的較佳方案，所述預定條件包括“γ Drx γ Dth並且γ eNB γ Cth”，其中，所述γ Dth為第一信干噪比閾值，γ Cth為第二信干噪比閾值，γ Drx為所述D2D對的接收端的第一信干噪比，γ eNB為所述基站的第二信干噪比。 According to a preferred embodiment of the embodiment, the predetermined condition includes " γ Drx γ Dth and γ eNB γ Cth ”, wherein γ Dth is a first signal to interference and noise ratio threshold, γ Cth is a second signal to interference and noise ratio threshold, and γ Drx is a first signal to interference and noise ratio of the receiving end of the D2D pair, and γ eNB is The second signal to interference and noise ratio of the base station.

其中，基站基於下述公式(3)來確定第一信干噪比。 The base station determines the first signal to interference and noise ratio based on the following formula (3).

其中，P Dtx為第二發射功率，h D為所述第一通道衰落，ID為所述第一干擾功率，N 0D為所述第一雜訊功率。 Where P Dtx is the second transmit power, h D is the first channel fading, I D is the first interference power, and N 0D is the first noise power.

並且，基站基於下述公式(4)來確定第二信干噪比。 And, the base station determines the second signal to interference and noise ratio based on the following formula (4).

其中，P CUE為所述第一發射功率，h C為所述第二通道衰落，P Dtx為第二發射功率，h CD為所述第三通道衰落，IC為所述第二干擾功率，N 0C為所述第二雜訊功率。 The P CUE is the first transmit power, h C is the second channel fading, P Dtx is the second transmit power, h CD is the third channel fading, and I C is the second interference power. N 0C is the second noise power.

接著，在步驟S122中，基站結合所述第一信干噪比閾值以及所述第二信干噪比閾值，判斷所述第一信干噪比以及所述第二信干噪比是否滿足所述預定條件。 Next, in step S122, the base station determines whether the first signal to interference and noise ratio and the second signal to interference and noise ratio satisfy the first signal to interference and noise ratio threshold and the second signal to interference and noise ratio threshold. Predetermined conditions.

較佳地，基站根據在步驟S121中獲得的γ Drx和γ eNB，以及基站已確定的γ Dth和γ Cth的值，判斷預定條件“γ Drx γ Dth並且γ eNB γ Cth”是否成立。 Preferably, the base station determines the predetermined condition " γ Drx based on the values of γ Drx and γ eNB obtained in step S121 and the γ Dth and γ Cth determined by the base station. γ Dth and γ eNB Whether γ Cth " is established.

接著，在步驟S13中，當所述D2D對滿足所述預定條件時，基站選擇所述待選設備的通信資源配置給所述D2D對，以供其進行D2D通信。 Next, in step S13, when the D2D pair satisfies the predetermined condition, the base station selects a communication resource configuration of the candidate device to the D2D pair for D2D communication.

作為本發明的較佳實施例之一，根據本發明的方法還包括步驟S15(圖未示)。 As one of the preferred embodiments of the present invention, the method according to the present invention further comprises a step S15 (not shown).

在步驟S15中，當所述D2D對不滿足所述預定條件時，基站對所述D2D執行相應處理。其中，所述相應處理包括以下任一項： In step S15, when the D2D pair does not satisfy the predetermined condition, the base station performs corresponding processing on the D2D. Wherein, the corresponding processing includes any one of the following:

1)由所述至少一個蜂窩使用者設備中選擇另一蜂窩使用者設備作為待選設備。 1) Selecting another cellular user device from the at least one cellular user device as the candidate device.

例如，基站由所述至少一個蜂窩使用者設備中，選擇尚未被選擇過的蜂窩使用者設備，作為新的待選設備，並再次透過D2D對執行的步驟S21、基站執行的步驟S11至 步驟S13，來確定所述D2D對相對於該新的待選設備是否滿足預定條件。 For example, the base station selects, by the at least one cellular user equipment, the cellular user equipment that has not been selected as the new candidate equipment, and performs the step S21 performed by the D2D pair again, and the step S11 performed by the base station to Step S13, to determine whether the D2D pair satisfies a predetermined condition with respect to the new candidate device.

2)不在當前時槽內為D2D對分配通信資源。 2) The communication resources are not allocated for the D2D pair in the current time slot.

需要說明的是，任何基於前述各個公式的變形對D2D對進行判斷的方法，例如，對於不等式(1)或(2)所做的任何變形，或者，基於預定條件“γ Drx γ Dth並且γ eNB γ Cth”，以及前述公式(3)和(4)所推導得出的各類變形條件，均應包含于本發明的發明範圍內。 It should be noted that any method of judging the D2D pair based on the deformation of each of the foregoing formulas, for example, any deformation made to the inequality (1) or (2), or based on a predetermined condition " γ Drx γ Dth and γ eNB γ Cth ′′, and various types of deformation conditions derived by the above formulas (3) and (4), are all included in the scope of the invention.

作為本發明的一個較佳實施例，當所述D2D對支持雙向通信時，基站需要分別獲取兩個通信方向的發射端和接收端的相關參數，分別執行前述步驟S11至步驟S13的操作，以分別判斷所述D2D對在兩個方向上是否均滿足預定條件，並僅當兩個通信方向的發射端與接收端均滿足預定條件時，將待選設備的通信資源配置給該D2D對，以供其進行通信。 As a preferred embodiment of the present invention, when the D2D pair supports two-way communication, the base station needs to separately acquire related parameters of the transmitting end and the receiving end of the two communication directions, and respectively perform the operations of the foregoing steps S11 to S13 to respectively Determining whether the D2D pair satisfies a predetermined condition in both directions, and only if the transmitting end and the receiving end of the two communication directions satisfy the predetermined condition, configuring the communication resource of the candidate device to the D2D pair for It communicates.

根據本發明的方法，在為D2D對分配通信資源之前，即檢測其對於基站的干擾影響，以及蜂窩使用者設備對其的干擾，並僅在D2D對滿足相應的信干噪比條件的情況下，允許該D2D對使用待選設備的通信資源進行通信，從而能夠確保相應的蜂窩鏈路的服務品質以及該D2D對的D2D鏈路的服務品質。 According to the method of the present invention, before the communication resources are allocated for the D2D pair, the interference influence on the base station and the interference of the cellular user equipment are detected, and only when the D2D pair satisfies the corresponding signal to interference and noise ratio condition. The D2D is allowed to communicate with the communication resources using the candidate device, thereby ensuring the quality of service of the corresponding cellular link and the quality of service of the D2D link of the D2D pair.

圖3示意出了根據本發明的一種用於確定D2D對的通信資源的通信系統的結構示意圖。根據本發明的系統包括基站，D2D對以及與基站對應的待選設備。 3 is a block diagram showing the structure of a communication system for determining communication resources of a D2D pair in accordance with the present invention. The system according to the invention comprises a base station, a D2D pair and a candidate device corresponding to the base station.

其中，所述D2D對包括發送裝置21，所述基站包括第一獲取裝置11、判斷裝置12以及第一確定裝置13。 The D2D pair includes a transmitting device 21, and the base station includes a first acquiring device 11, a determining device 12, and a first determining device 13.

其中，根據本發明的方案，基站由其所對應的至少一個蜂窩使用者設備中選擇一個待選設備，並且，基站中的第一獲取裝置11、判斷裝置12以及第一確定裝置13基於該待選設備執行操作。 According to the solution of the present invention, the base station selects one candidate device from the at least one cellular user equipment corresponding thereto, and the first obtaining device 11, the determining device 12 and the first determining device 13 in the base station are based on the waiting device. Select the device to perform the operation.

其中，基站基於預定的選擇策略，由所述至少一個蜂窩用設備中選擇一個作為待選設備。 The base station selects one of the at least one cellular device as the candidate device based on a predetermined selection policy.

較佳地，基站基於預定的選擇策略，由其所對應的至少一個蜂窩使用者設備中選擇預定個數的蜂窩使用者設備，並由該預定個數的蜂窩使用者設備中，選擇一個待選設備。 Preferably, the base station selects a predetermined number of cellular user equipments from at least one of the at least one cellular user equipment corresponding to the predetermined selection policy, and selects one of the predetermined number of cellular user equipments to be selected. device.

D2D對中的發送裝置21向基站發送所述D2D對之間的D2D鏈路的第一衰落資訊。 The transmitting device 21 of the D2D pair transmits the first fading information of the D2D link between the D2D pairs to the base station.

較佳地，所述發送裝置21包含於所述D2D對的接收端或發射端中。 Preferably, the transmitting device 21 is included in a receiving end or a transmitting end of the D2D pair.

其中，所述第一相關資訊包括：1)所述D2D對之間的D2D鏈路的第一衰落資訊，所述第一衰落資訊用於指示從所述發射端到所述接收端之間的功率衰落情況；2)所述D2D對中的所述接收端的第一干噪資訊；所述第一干噪資訊用於指示所述接收端的雜訊以及干擾功率相關資訊。 The first related information includes: 1) first fading information of the D2D link between the D2D pairs, where the first fading information is used to indicate between the transmitting end and the receiving end. a power fading condition; 2) first dry noise information of the receiving end of the D2D pair; the first dry noise information is used to indicate noise and interference power related information of the receiving end.

較佳地，所述第一干噪資訊包括所述接收端的第一雜訊功率和第一干擾功率。 Preferably, the first dry noise information includes a first noise power and a first interference power of the receiving end.

更佳地，當D2D對檢測到第一干擾功率遠大於第一雜訊功率時，發送裝置21僅向基站上報第一干擾功率；相似第，當D2D對檢測到的第一雜訊功率遠大於第一干擾功率時，發送裝置21僅向基站上報第一雜訊功率。 More preferably, when the D2D pair detects that the first interference power is much larger than the first noise power, the transmitting device 21 reports only the first interference power to the base station; similarly, when the D2D detects the first noise power is large When the first interference power is used, the transmitting device 21 reports only the first noise power to the base station.

較佳地，根據本發明的方法，透過在D2D鏈路中***參考通道，以用於測算包含於第一相關資訊中的第一衰落資訊。更優選地，所述參考通道還可用於D2D鏈路的解調。例如，在D2D鏈路中***類似LTE系統的上行鏈路解調參考信號(DMRS，Demodulation Reference Signals)的信號，以實現測算第一衰落資訊以及對於D2D鏈路的解調操作。 Preferably, according to the method of the present invention, the reference channel is inserted in the D2D link for measuring the first fading information included in the first related information. More preferably, the reference channel can also be used for demodulation of a D2D link. For example, a signal similar to an LTE system's uplink demodulation reference signal (DMRS) is inserted in the D2D link to implement measurement of the first fading information and demodulation operation for the D2D link.

接著，基站中的第一獲取裝置11獲取與所述D2D對相對應的第一相關資訊、與所述待選設備對應的第二相關資訊、以及與所述基站對應的第三相關資訊。 Then, the first acquiring device 11 in the base station acquires first related information corresponding to the D2D pair, second related information corresponding to the candidate device, and third related information corresponding to the base station.

其中，第一相關資訊已在前述步驟S21中進行說明，此處不再贅述。 The first related information has been described in the foregoing step S21, and details are not described herein again.

其中，所述第二相關資訊包括：1)所述待選設備與所述基站之間的第二衰落資訊；所述第二衰落資訊用於指示從所述待選設備到所述基站之間的功率衰落情況；2)所述待選設備的第一發射功率。 The second related information includes: 1) second fading information between the candidate device and the base station; and the second fading information is used to indicate that the device to be selected is between the base station and the base station. Power fading condition; 2) the first transmit power of the device to be selected.

其中，所述第三相關資訊包括：1)所述基站與所述D2D對的發射端之間的第三衰落資訊，其中，所述第三衰落資訊用於指示從所述發射端到所述基站之間的功率衰落情況；2)所述基站的第二干噪資訊，所述第二干噪資訊 用於指示所述基站的雜訊以及小區間干擾功率的相關資訊。 The third related information includes: 1) third fading information between the base station and a transmitting end of the D2D pair, where the third fading information is used to indicate from the transmitting end to the Power fading between base stations; 2) second dry noise information of the base station, the second dry noise information Information for indicating noise of the base station and inter-cell interference power.

其中，第一獲取裝置11採用不同的方式來獲取所述第一、第二以及第三相關資訊中所包含的各類資訊。 The first obtaining device 11 acquires various types of information included in the first, second, and third related information in different manners.

較佳地，第一獲取裝置11分別接收由D2D對的接收端上報的第一相關資訊，以及由待選設備上報的第一發射功率。 Preferably, the first acquiring device 11 receives the first related information reported by the receiving end of the D2D pair and the first transmitting power reported by the device to be selected.

較佳地，第一獲取裝置11透過測量與待選設備對應的上行探測參考資訊(SRS，Sounding Reference Signal)或者上行DMRS來確定與待選設備對應的第二衰落資訊。 Preferably, the first obtaining device 11 determines the second fading information corresponding to the to-be-selected device by measuring an uplink sounding reference signal (SRS) or an uplink DMRS corresponding to the device to be selected.

較佳地，第一獲取裝置11透過測量獲得自身與所述D2D對的發射端之間的第三衰落資訊，以及自身的第二干噪資訊。 Preferably, the first obtaining device 11 obtains the third fading information between itself and the transmitting end of the D2D pair through measurement, and the second dry noise information of the self.

接著，基站的判斷裝置12基於所述第一、第二以及第三相關資訊，並結合與所述D2D對的接收端相對應的第一信干噪比閾值，以及與所述基站相對應的第二信干噪比閾值，來判斷所述D2D對是否滿足預定條件。 Next, the determining means 12 of the base station is based on the first, second and third related information, and combined with a first signal to interference and noise ratio threshold corresponding to the receiving end of the D2D pair, and corresponding to the base station The second signal to interference ratio threshold is used to determine whether the D2D pair satisfies a predetermined condition.

其中，所述第一信干噪比閾值基於所述D2D對的D2D連結的服務品質資訊(QoS，Quality of Service)來確定。較佳地，不同的服務品質請求分別對應不同的第一信干噪比閾值。 The first signal to interference and noise ratio threshold is determined based on a QoS (Quality of Service) of the D2D link of the D2D pair. Preferably, different service quality requests respectively correspond to different first signal to interference and noise ratio thresholds.

其中，所述第二信干噪比閾值基於所述待選設備與所述基站之間的蜂窩連結的QoS資訊來確定。較佳地，不同的服務品質請求分別對應不同的第二信干噪比閾值。 The second signal to interference and noise ratio threshold is determined based on QoS information of a cellular connection between the candidate device and the base station. Preferably, different service quality requests respectively correspond to different second signal to interference and noise ratio thresholds.

其中，本領域技術人員應可根據實際情況和需求來獲得根據QoS確定相應的信干噪比閾值的方式，在此不再贅述。 A method for determining a corresponding signal to interference and noise ratio threshold according to QoS may be obtained by a person skilled in the art according to actual conditions and requirements, and details are not described herein again.

其中，所述判斷裝置12的實施方式包括以下任一種： The implementation manner of the determining device 12 includes any one of the following:

1)所述第一衰落資訊包括所述發射端與所述接收端之間的第一通道衰落，所述第三衰落資訊包括所述發射端與所述基站之間的第三通道衰落，所述第一干噪資訊包括第一雜訊功率和第一干擾功率，所述第二干噪資訊包括第二雜訊功率和第二干擾功率，其中，所述預定條件包括如下所示的不等式： 其中，h CD為所述第三通道衰落，h D為所述第一通道衰落，γ Dth為所述第一信干噪比閾值，P CUE為所述第一發射功率，h C為所述第二通道衰落；γ Cth為所述第二信干噪比閾值，ID為所述第一干擾功率，N 0D為所述第一雜訊功率，IC為所述第二干擾功率，N 0C為所述第二雜訊功率。 1) The first fading information includes a first channel fading between the transmitting end and the receiving end, and the third fading information includes a third channel fading between the transmitting end and the base station, where The first dry noise information includes a first noise power and a first interference power, and the second dry noise information includes a second noise power and a second interference power, wherein the predetermined condition includes an inequality as follows: Wherein h CD is the third channel fading, h D is the first channel fading, γ Dth is the first signal to interference and noise ratio threshold, P CUE is the first transmit power, and h C is the a second channel fading; γ Cth is the second signal to interference and noise ratio threshold, I D is the first interference power, N 0D is the first noise power, and I C is the second interference power, N 0C is the second noise power.

具體地，判斷裝置12判斷第一獲取裝置11所獲得的各項資訊的值是否滿足不等式(1)，當滿足不等式(1)時，確定所述D2D對滿足預定條件。 Specifically, the judging means 12 judges whether or not the value of each piece of information obtained by the first obtaining means 11 satisfies inequality (1), and when the inequality (1) is satisfied, determines that the D2D pair satisfies a predetermined condition.

2)所述第一衰落資訊包括所述D2D鏈路的第一路徑距離以及相應的第一路徑衰落指數；所述第三衰落資訊包 括所述發射端與所述基站間的第二路徑距離以及相應的第二路徑衰落指數，所述第一干噪資訊包括第一雜訊功率和第一干擾功率，所述第二干噪資訊包括第二雜訊功率和第二干擾功率，其中，所述預定條件包括如下所示的不等式： 其中，d CD為所述第二路徑距離，β為所述第二路徑衰落指數，d D為所述第一路徑距離，α為所述第一路徑衰落指數，γ Dth為所述第一信干噪比閾值，P CUE為所述第一發射功率，h C為所述第二通道衰落；γ Cth為所述第二信干噪比閾值，ID為所述第一干擾功率，N 0D為所述第一雜訊功率，IC為所述第二干擾功率，N 0C第二雜訊功率為所述。 2) the first fading information includes a first path distance of the D2D link and a corresponding first path fading index; the third fading information includes a second path distance between the transmitting end and the base station, and Corresponding second path fading index, the first dry noise information includes a first noise power and a first interference power, and the second dry noise information includes a second noise power and a second interference power, where The predetermined conditions include the inequalities shown below: Where d CD is the second path distance, β is the second path fading index, d D is the first path distance, α is the first path fading index, and γ Dth is the first letter a dry noise ratio threshold, P CUE is the first transmit power, h C is the second channel fading; γ Cth is the second signal to interference and noise ratio threshold, and I D is the first interference power, N 0D For the first noise power, I C is the second interference power, and N 0C second noise power is as described.

具體地，判斷裝置12判斷第一獲取裝置11所獲得的各項資訊的值是否滿足不等式(2)，當滿足不等式(2)時，確定所述D2D對滿足預定條件。 Specifically, the judging means 12 judges whether or not the value of each piece of information obtained by the first obtaining means 11 satisfies inequality (2), and when the inequality (2) is satisfied, determines that the D2D pair satisfies the predetermined condition.

根據本發明的一個較佳實施例，所述預定條件包括所述D2D接收端的第一信干噪比滿足所述第一信干噪比閾值，並且所述基站的第二信干噪比滿足所述第二信干噪比閾值，其中，根據本發明的基站還包括第二獲取裝置(圖未示)，判斷裝置12進一步包括第二確定裝置(圖未示)以及子判斷裝置(圖未示)。 According to a preferred embodiment of the present invention, the predetermined condition includes that a first signal to interference and noise ratio of the D2D receiving end satisfies the first signal to interference and noise ratio threshold, and a second signal to interference and noise ratio of the base station satisfies a second signal to interference ratio threshold, wherein the base station according to the present invention further includes a second obtaining device (not shown), and the determining device 12 further includes a second determining device (not shown) and a sub-determining device (not shown) ).

第二獲取裝置獲取所述發射端相對於所述基站的第二 發射功率。 The second obtaining device acquires the second end of the transmitting end relative to the base station Transmit power.

第二確定裝置基於所獲得的第一相關資訊以及所述D2D發射功率資訊，確定所述第一信干噪比，並基於所述第二相關資訊、第三相關資訊以及所述D2D發射功率資訊，確定所述第二信干噪比。 Determining, by the second determining device, the first signal to interference and noise ratio based on the obtained first related information and the D2D transmit power information, and based on the second related information, the third related information, and the D2D transmit power information Determining the second signal to interference and noise ratio.

根據本實施例的較佳方案，所述預定條件包括“γ Drx γ Dth並且γ eNB γCth”，其中，所述γ Dth為第一信干噪比閾值，γ Cth為第二信干噪比閾值，γ Drx為所述D2D對的接收端的第一信干噪比，γ eNB為所述基站的第二信干噪比。 According to a preferred embodiment of the embodiment, the predetermined condition includes " γ Drx γ Dth and γ eNB γ Cth ”, wherein γ Dth is a first signal to interference and noise ratio threshold, γ Cth is a second signal to interference and noise ratio threshold, and γ Drx is a first signal to interference and noise ratio of the receiving end of the D2D pair, and γ eNB is The second signal to interference and noise ratio of the base station.

其中，第二確定裝置基於下述公式(3)來確定第一信干噪比。 The second determining means determines the first signal to interference and noise ratio based on the following formula (3).

其中，P Dtx為第二發射功率，h D為所述第一通道衰落，ID為所述第一干擾功率，N 0D為所述第一雜訊功率。 Where P Dtx is the second transmit power, h D is the first channel fading, I D is the first interference power, and N 0D is the first noise power.

並且，第二確定裝置基於下述公式(4)來確定第二信干噪比。 And, the second determining means determines the second signal to interference and noise ratio based on the following formula (4).

其中，P CUE為所述第一發射功率，h C為所述第二通道衰落，P Dtx為第二發射功率，h CD為所述第三通道衰落，IC為所述第二干擾功率，N 0C為所述第二雜訊功率。 The P CUE is the first transmit power, h C is the second channel fading, P Dtx is the second transmit power, h CD is the third channel fading, and I C is the second interference power. N 0C is the second noise power.

接著，子判斷裝置結合所述第一信干噪比閾值以及所 述第二信干噪比閾值，判斷所述第一信干噪比以及所述第二信干噪比是否滿足所述預定條件。 Next, the sub-judging device combines the first signal to interference and noise ratio threshold and the Determining whether the first signal to interference and noise ratio and the second signal to interference and noise ratio satisfy the predetermined condition.

較佳地，子判斷裝置根據在第二確定裝置獲得的γ Drx和γ eNB，以及基站已確定的γ Dth和γ Cth的值，判斷預定條件“γ Drx γ Dth並且γ eNB γ Cth”是否成立。 Preferably, the sub-judging means judges the predetermined condition " γ Drx " based on the values of γ Drx and γ eNB obtained at the second determining means and the γ Dth and γ Cth determined by the base station. γ Dth and γ eNB Whether γ Cth " is established.

接著，當所述D2D對滿足所述預定條件時，基站的第一確定裝置13選擇所述待選設備的通信資源配置給所述D2D對，以供其進行D2D通信。 Next, when the D2D pair satisfies the predetermined condition, the first determining means 13 of the base station selects a communication resource configuration of the candidate device for the D2D pair for D2D communication.

作為本發明的較佳實施例之一，根據本發明的基站還包括處理裝置(圖未示)。 As one of the preferred embodiments of the present invention, the base station according to the present invention further includes processing means (not shown).

當所述D2D對不滿足所述預定條件時，處理裝置對所述D2D執行相應處理。其中，所述相應處理包括以下任一項： When the D2D pair does not satisfy the predetermined condition, the processing device performs a corresponding process on the D2D. Wherein, the corresponding processing includes any one of the following:

1)處理裝置所述至少一個蜂窩使用者設備中選擇另一蜂窩使用者設備作為待選設備。 1) Processing device Selecting another cellular user device as the candidate device among the at least one cellular user device.

例如，處理裝置由所述至少一個蜂窩使用者設備中，選擇尚未被選擇過的蜂窩使用者設備，作為新的待選設備，並再次透過D2D對中的發送裝置11、基站中的第一獲取裝置11、判斷裝置12以及第一確定裝置13執行操作操作，確定所述D2D對相對於該新的待選設備是否滿足預定條件。 For example, the processing device selects, by the at least one cellular user equipment, a cellular user equipment that has not been selected as a new candidate device, and again transmits the first acquisition in the transmitting device 11 and the base station in the D2D pair. The device 11, the judging device 12, and the first determining device 13 perform an operation operation to determine whether the D2D pair satisfies a predetermined condition with respect to the new candidate device.

2)處理裝置不在當前時槽內為D2D對分配通信資源。 2) The processing device does not allocate communication resources for the D2D pair in the current time slot.

需要說明的是，任何基於前述各個公式的變形對D2D 對進行判斷的方法，例如，對於不等式(1)或(2)所做的任何變形，或者，基於預定條件“γ Drx γ Dth並且γ eNB γ Cth”，以及前述公式(3)和(4)所推導得出的各類變形條件，均應包含于本發明的發明範圍內。 It should be noted that any method of judging the D2D pair based on the deformation of each of the foregoing formulas, for example, any deformation made to inequality (1) or (2), or based on a predetermined condition " γ Drx γ Dth and γ eNB γ Cth ′′, and various types of deformation conditions derived by the above formulas (3) and (4), are all included in the scope of the invention.

作為本發明的一個較佳實施例，當所述D2D對支持雙向通信時，基站需要分別獲取兩個通信方向的發射端和接收端的相關參數，並由第一獲取裝置11、判斷裝置12以及第一確定裝置13執行操作，以分別判斷所述D2D對在兩個方向上是否均滿足預定條件，並僅當兩個通信方向的發射端與接收端均滿足預定條件時，將待選設備的通信資源配置給該D2D對，以供其進行通信。 As a preferred embodiment of the present invention, when the D2D pair supports two-way communication, the base station needs to acquire relevant parameters of the transmitting end and the receiving end of the two communication directions respectively, and is configured by the first acquiring device 11, the determining device 12, and the A determining means 13 performs an operation to respectively determine whether the D2D pair satisfies a predetermined condition in both directions, and communicates the device to be selected only when both the transmitting end and the receiving end of the two communication directions satisfy the predetermined condition The resource is configured for the D2D pair for communication.

根據本發明的方案，在為D2D對分配通信資源之前，即檢測其對於基站的干擾影響，以及蜂窩使用者設備對其的干擾，並僅在D2D對滿足相應的信干噪比條件的情況下，允許該D2D對使用待選設備的通信資源進行通信，從而能夠確保相應的蜂窩鏈路的服務品質以及該D2D對的D2D鏈路的服務品質。 According to the solution of the present invention, before the communication resources are allocated for the D2D pair, the interference influence on the base station and the interference of the cellular user equipment are detected, and only when the D2D pair satisfies the corresponding signal to interference and noise ratio condition. The D2D is allowed to communicate with the communication resources using the candidate device, thereby ensuring the quality of service of the corresponding cellular link and the quality of service of the D2D link of the D2D pair.

對於本領域技術人員而言，顯然本發明不限於上述示範性實施例的細節，而且在不背離本發明的精神或基本特徵的情況下，能夠以其他的具體形式實現本發明。因此，無論從哪一點來看，均應將實施例看作是示範性的，而且是非限制性的，本發明的範圍由所附申請專利範圍而不是上述說明限定，因此旨在將落在申請專利範圍的等同要件的含義和範圍內的所有變化涵括在本發明內。不應將申請 專利範圍中的任何附圖標記視為限制所涉及的申請專利範圍。此外，顯然“包括”一詞不排除其他單元或步驟，單數不排除複數。系統權利要求中陳述的多個單元或裝置也可以由一個單元或裝置透過軟體或者硬體來實現。第一，第二等詞語用來表示名稱，而並不表示任何特定的順序。 It is apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be considered as illustrative and not restrictive, and the scope of the invention is defined by the scope of the appended claims rather than the description All changes that come within the meaning and range of equivalents of the scope of the invention are included in the invention. Should not apply Any reference signs in the patent range are considered to limit the scope of the claimed patent. In addition, it is to be understood that the word "comprising" does not exclude other elements or steps. The plurality of units or devices recited in the system claims can also be implemented by a unit or device through software or hardware. The first, second, etc. words are used to denote names and do not denote any particular order.

Claims (15)

一種在基站中確定裝置對裝置(D2D)對的通信資源的方法，其中，該基站對應至少一個蜂窩使用者設備，其中，對於該至少一個蜂窩使用者設備中的一個待選設備，該方法包括：a獲取與該D2D對相對應的第一相關資訊、與該待選設備對應的第二相關資訊、以及與該基站對應的第三相關資訊；b基於該第一、第二以及第三相關資訊，並結合與該D2D對的接收端相對應的第一信干噪比閾值，以及與該基站相對應的第二信干噪比閾值，來判斷該D2D對是否滿足預定條件；以及c當該D2D對滿足該預定條件時，選擇該待選設備的通信資源配置給該D2D對，以供其進行D2D通信。 A method of determining a communication resource of a device-to-device (D2D) pair in a base station, wherein the base station corresponds to at least one cellular user device, wherein, for one of the at least one cellular user device, the method includes :a acquiring first related information corresponding to the D2D pair, second related information corresponding to the candidate device, and third related information corresponding to the base station; b based on the first, second, and third correlations Information, in combination with a first signal to interference and noise ratio threshold corresponding to the receiving end of the D2D pair, and a second signal to interference and noise ratio threshold corresponding to the base station, to determine whether the D2D pair satisfies a predetermined condition; When the D2D pair satisfies the predetermined condition, the communication resource of the candidate device is selected and configured to the D2D pair for D2D communication. 根據申請專利範圍第1項所述的方法，其中，該預定條件包括該D2D接收端的第一信干噪比滿足該第一信干噪比閾值，並且該基站的第二信干噪比滿足該第二信干噪比閾值，其中，該方法還包括以下步驟：獲取該發射端相對於該基站的第二發射功率；其中，該步驟b包括以下步驟：基於所獲得的第一相關資訊以及該D2D發射功率資訊，確定該第一信干噪比，並基於該第二相關資訊、第三相關資訊以及該D2D發射功率資訊，確定該第二信干噪比；以及 結合該第一信干噪比閾值以及該第二信干噪比閾值，判斷該第一信干噪比以及該第二信干噪比是否滿足該預定條件。 The method of claim 1, wherein the predetermined condition comprises that the first signal to interference and noise ratio of the D2D receiving end satisfies the first signal to interference and noise ratio threshold, and the second signal to interference and noise ratio of the base station satisfies the a second signal to interference ratio threshold, wherein the method further comprises the steps of: acquiring a second transmit power of the transmitting end relative to the base station; wherein the step b comprises the step of: based on the obtained first related information and the D2D transmitting power information, determining the first signal to interference and noise ratio, and determining the second signal to interference and noise ratio based on the second related information, the third related information, and the D2D transmission power information; Combining the first signal to interference and noise ratio threshold and the second signal to interference and noise ratio threshold, determining whether the first signal to interference and noise ratio and the second signal to interference and noise ratio satisfy the predetermined condition. 根據申請專利範圍第1或2項所述的方法，其中，該第一相關資訊包括：該D2D對之間的D2D鏈路的第一衰落資訊；該D2D對中的該接收端的第一干噪資訊；其中，該第二相關資訊包括：該待選設備與該基站之間的第二衰落資訊；該待選設備的第一發射功率；其中，該第三相關資訊包括：該基站與該D2D對的發射端之間的第三衰落資訊；該基站的第二干噪資訊。 The method of claim 1 or 2, wherein the first related information comprises: first fading information of the D2D link between the D2D pairs; and first noise of the receiving end of the D2D pair The second related information includes: a second fading information between the device to be selected and the base station; a first transmit power of the device to be selected; wherein the third related information includes: the base station and the D2D Third fading information between the transmitting ends of the pair; second dry noise information of the base station. 根據申請專利範圍第3項所述的方法，其中，該第一衰落資訊包括該發射端與該接收端之間的第一通道衰落，該第三衰落資訊包括該發射端與該基站之間的第三通道衰落，該第一干噪資訊包括第一雜訊功率和第一干擾功率，該第二干噪資訊包括第二雜訊功率和第二干擾功率，其中，該預定條件包括如下所示的不等式： 其中，h CD為該第三通道衰落，h D為該第一通道衰落，γ Dth為該第一信干噪比閾值，P CUE為該第一發射功率，h C為 該第二通道衰落；γ Cth為該第二信干噪比閾值，ID為該第一干擾功率，N 0D為該第一雜訊功率，IC為該第二干擾功率，N 0C為該第二雜訊功率。 The method of claim 3, wherein the first fading information comprises a first channel fading between the transmitting end and the receiving end, the third fading information comprising between the transmitting end and the base station The third channel fading, the first dry noise information includes a first noise power and a first interference power, and the second dry noise information includes a second noise power and a second interference power, wherein the predetermined condition includes the following Inequality: Wherein h CD is the third channel fading, h D is the first channel fading, γ Dth is the first signal to interference and noise ratio threshold, P CUE is the first transmit power, and h C is the second channel fading; γ Cth is the second signal to interference and noise ratio threshold, I D is the first interference power, N 0D is the first noise power, I C is the second interference power, and N 0C is the second noise power. 根據申請專利範圍第3項所述的方法，其中，該第一衰落資訊包括該D2D鏈路的第一路徑距離以及相應的第一路徑衰落指數；該第三衰落資訊包括該發射端與該基站間的第二路徑距離以及相應的第二路徑衰落指數，該第一干噪資訊包括第一雜訊功率和第一干擾功率，該第二干噪資訊包括第二雜訊功率和第二干擾功率，其中，該預定條件包括如下所示的不等式： 其中，d CD為該第二路徑距離，β為該第二路徑衰落指數，d D為該第一路徑距離，α為該第一路徑衰落指數，γ Dth為該第一信干噪比閾值，P CUE為該第一發射功率，h C為該第二通道衰落；γ Cth為該第二信干噪比閾值，ID為該第一干擾功率，N 0D為該第一雜訊功率，IC為該第二干擾功率，N 0C為該第二雜訊功率。 The method of claim 3, wherein the first fading information includes a first path distance of the D2D link and a corresponding first path fading index; the third fading information includes the transmitting end and the base station a second path distance and a corresponding second path fading index, the first dry noise information includes a first noise power and a first interference power, and the second dry noise information includes a second noise power and a second interference power , wherein the predetermined condition includes an inequality as shown below: Where d CD is the second path distance, β is the second path fading index, d D is the first path distance, α is the first path fading index, and γ Dth is the first signal to interference and noise ratio threshold. P CUE is the first transmit power, h C is the second channel fading; γ Cth is the second signal to interference and noise ratio threshold, I D is the first interference power, and N 0D is the first noise power, I C is the second interference power, and N 0C is the second noise power. 根據申請專利範圍第1至5項中任一項所述的方法，其中，該方法還包括以下步驟：當該D2D對不滿足該預定條件時，對該D2D執行相應處理；其中，該相應處理包括以下任一項：由該至少一個蜂窩使用者設備中選擇另一蜂窩使用者 設備作為待選設備，不在當前時槽內為D2D對分配通信資源。 The method of any one of claims 1 to 5, wherein the method further comprises the step of: performing a corresponding process on the D2D when the D2D pair does not satisfy the predetermined condition; wherein the corresponding process Including any one of the following: selecting another cellular user from the at least one cellular user device As a candidate device, the device does not allocate communication resources for the D2D pair in the current time slot. 一種用於輔助基站確定D2D對的通信資源的方法，其中，該基站對應至少一個蜂窩使用者設備，其中，該方法包括以下步驟：向該基站發送該D2D對之間的D2D鏈路的第一相關資訊，其中，該第一相關資訊包括：該D2D對之間的D2D鏈路的第一衰落資訊；以及該D2D對中的該接收端的第一干噪資訊。 A method for assisting a base station in determining communication resources of a D2D pair, wherein the base station corresponds to at least one cellular user equipment, wherein the method comprises the step of: transmitting, to the base station, a first D2D link between the D2D pairs Related information, wherein the first related information includes: first fading information of the D2D link between the D2D pair; and first dry noise information of the receiving end in the D2D pair. 一種確定D2D對的通信資源的基站，該基站對應至少一個蜂窩使用者設備，其中，該基站包括以下裝置，以對於該至少一個蜂窩使用者設備中的一個待選設備執行操作：第一獲取裝置，用於獲取與該D2D對相對應的第一相關資訊、與該待選設備對應的第二相關資訊、以及與該基站對應的第三相關資訊；判斷裝置，用於基於該第一、第二以及第三相關資訊，並結合與該D2D對的接收端相對應的第一信干噪比閾值，以及與該基站相對應的第二信干噪比閾值，來判斷該D2D對是否滿足預定條件；以及第一確定裝置，用於當該D2D對滿足該預定條件時，選擇該待選設備的通信資源配置給該D2D對，以供其進行D2D通信。 A base station for determining a communication resource of a D2D pair, the base station corresponding to at least one cellular user equipment, wherein the base station includes means for performing an operation on one of the at least one cellular user equipment: the first acquisition device And for acquiring first related information corresponding to the D2D pair, second related information corresponding to the candidate device, and third related information corresponding to the base station; determining means, configured to be based on the first And second and third related information, and combining the first signal to interference and noise ratio threshold corresponding to the receiving end of the D2D pair and the second signal to interference and noise ratio threshold corresponding to the base station to determine whether the D2D pair satisfies the predetermined And a first determining means, configured to select, when the D2D pair satisfies the predetermined condition, a communication resource configuration of the candidate device to the D2D pair for D2D communication. 根據申請專利範圍第8項所述的基站，其中，該預 定條件包括該D2D接收端的第一信干噪比滿足該第一信干噪比閾值，並且該基站的第二信干噪比滿足該第二信干噪比閾值，其中，該基站還包括：第二獲取裝置，用於獲取該發射端相對於該基站的第二發射功率；其中，該判斷裝置包括：第二確定裝置，用於基於所獲得的第一相關資訊以及該D2D發射功率資訊，確定該第一信干噪比，並基於該第二相關資訊、第三相關資訊以及該D2D發射功率資訊，確定該第二信干噪比；以及子判斷裝置，用於結合該第一信干噪比閾值以及該第二信干噪比閾值，判斷該第一信干噪比以及該第二信干噪比是否滿足該預定條件。 According to the base station of claim 8, wherein the pre- The condition includes that the first signal to interference and noise ratio of the D2D receiving end satisfies the first signal to interference and noise ratio threshold, and the second signal to interference and noise ratio of the base station satisfies the second signal to interference and noise ratio threshold, wherein the base station further includes: a second acquiring device, configured to acquire a second transmit power of the transmitting end relative to the base station, where the determining device includes: second determining means, configured to, based on the obtained first related information and the D2D transmit power information, Determining the first signal to interference and noise ratio, and determining the second signal to interference and noise ratio based on the second related information, the third related information, and the D2D transmission power information; and sub-determining means for combining the first signal And determining, by the noise ratio threshold and the second signal to interference and noise ratio threshold, whether the first signal to interference and noise ratio and the second signal to interference and noise ratio satisfy the predetermined condition. 根據申請專利範圍第8或9項所述的基站，其中，該第一相關資訊包括：該D2D對之間的D2D鏈路的第一衰落資訊；該D2D對中的該接收端的第一干噪資訊；其中，該第二相關資訊包括：該待選設備與該基站之間的第二衰落資訊；該待選設備的第一發射功率；其中，該第三相關資訊包括：該基站與該D2D對的發射端之間的第三衰落資訊；該基站的第二干噪資訊。 The base station according to claim 8 or 9, wherein the first related information comprises: first fading information of the D2D link between the D2D pairs; and first noise of the receiving end of the D2D pair The second related information includes: a second fading information between the device to be selected and the base station; a first transmit power of the device to be selected; wherein the third related information includes: the base station and the D2D Third fading information between the transmitting ends of the pair; second dry noise information of the base station. 根據申請專利範圍第10項所述的基站，其中，該 第一衰落資訊包括該發射端與該接收端之間的第一通道衰落，該第三衰落資訊包括該發射端與該基站之間的第三通道衰落，該第一干噪資訊包括第一雜訊功率和第一干擾功率，該第二干噪資訊包括第二雜訊功率和第二干擾功率，其中，該預定條件包括如下所示的不等式： 其中，h CD為該第二通道衰落，h D為該第一通道衰落，γ Dth為該第一信干噪比閾值，P CUE為該第一發射功率，h C為該第二通道衰落；γ Cth為該第二信干噪比閾值，ID為該第一干擾功率，N 0D為該第一雜訊功率，IC為該第二干擾功率，N 0C為該第二雜訊功率。 The base station according to claim 10, wherein the first fading information comprises a first channel fading between the transmitting end and the receiving end, the third fading information comprising the transmitting end and the base station The third channel fading, the first dry noise information includes a first noise power and a first interference power, and the second dry noise information includes a second noise power and a second interference power, wherein the predetermined condition includes the following Inequality: Wherein h CD is the fading of the second channel, h D is the fading of the first channel, γ Dth is the threshold of the first signal to interference and noise ratio, P CUE is the first transmit power, and h C is the fading of the second channel; γ Cth is the second signal to interference and noise ratio threshold, I D is the first interference power, N 0D is the first noise power, I C is the second interference power, and N 0C is the second noise power. 根據申請專利範圍第10項所述的基站，其中，該第一衰落資訊包括該D2D鏈路的第一路徑距離以及相應的第一路徑衰落指數；該第三衰落資訊包括該發射端與該基站間的第二路徑距離以及相應的第二路徑衰落指數，該第一干噪資訊包括第一雜訊功率和第一干擾功率，該第二干噪資訊包括第二雜訊功率和第二干擾功率，其中，該預定條件包括如下所示的不等式： 其中，d CD為該第二路徑距離，β為該第二路徑衰落指 數，d D為該第一路徑距離，α為該第一路徑衰落指數，γ Dth為該第一信干噪比閾值，P CUE為該第一發射功率，h C為該第二通道衰減；γ Cth為該第二信干噪比閾值，ID為該第一干擾功率，N 0D為該第一雜訊功率，IC為該第二干擾功率，N 0C為該第二雜訊功率。 The base station according to claim 10, wherein the first fading information includes a first path distance of the D2D link and a corresponding first path fading index; the third fading information includes the transmitting end and the base station a second path distance and a corresponding second path fading index, the first dry noise information includes a first noise power and a first interference power, and the second dry noise information includes a second noise power and a second interference power , wherein the predetermined condition includes an inequality as shown below: Where d CD is the second path distance, β is the second path fading index, d D is the first path distance, α is the first path fading index, and γ Dth is the first signal to interference and noise ratio threshold. P CUE is the first transmit power, h C is the second channel attenuation; γ Cth is the second signal to interference and noise ratio threshold, I D is the first interference power, and N 0D is the first noise power, I C is the second interference power, and N 0C is the second noise power. 根據申請專利範圍第8至12項中任一項所述的基站，其中，該基站還包括：處理裝置，用於當該D2D對不滿足該預定條件時，對該D2D執行相應處理；其中，該相應處理包括以下任一種：由該至少一個蜂窩使用者設備中選擇另一蜂窩使用者設備作為待選設備，不在當前時槽內為D2D對分配通信資源。 The base station according to any one of claims 8 to 12, wherein the base station further comprises: processing means for performing a corresponding process on the D2D when the D2D pair does not satisfy the predetermined condition; The corresponding processing includes any one of the following: selecting another cellular user device from the at least one cellular user device as the candidate device, not allocating communication resources for the D2D pair in the current time slot. 一種輔助基站確定自身的通信資的D2D對，其中，該基站對應至少一個蜂窩使用者設備，其中，該D2D對包括：發送裝置，用於向該基站發送該D2D對之間的D2D鏈路的第一相關資訊，其中，該第一相關資訊包括：該D2D對之間的D2D鏈路的第一衰落資訊；該D2D對中的該接收端的第一干噪資訊。 A D2D pair for a secondary base station to determine its own communication resources, wherein the base station corresponds to at least one cellular user equipment, wherein the D2D pair includes: a transmitting device, configured to send, to the base station, a D2D link between the D2D pairs The first related information, where the first related information includes: first fading information of the D2D link between the D2D pair; and first noise information of the receiving end of the D2D pair. 一種通信系統，其中，該通信系統包括如申請專利範圍第8至13中任一項所述的基站，與該基站對應的至少一個蜂窩使用者設備，以及至少一個如申請專利範圍第14項所述的D2D對。 A communication system, wherein the communication system includes the base station according to any one of claims 8 to 13, at least one cellular user equipment corresponding to the base station, and at least one of claim 14 The D2D pair described.
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