CN107113125B - Method and device for transmitting broadcast message - Google Patents
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Abstract
本发明的实施例提供一种广播消息的传输方法及装置,涉及通信领域,解决了由于预留时隙间隔所造成的通信速度下降以及时频资源浪费的问题。该方案包括:第一UE根据当前系统帧号T以及其他至少一个UE在T号帧之前使用的时频资源信息,确定第一UE在0号帧的时频资源信息;第一UE根据当前系统帧号T和第一UE在0号帧的频域资源位置,确定第一UE在T号帧的频域资源位置;第一UE根据当前系统帧号T和第一UE在0号帧的时频资源信息,确定第一UE在T号帧的时隙组位置和时隙位置,并确定第一UE在T号帧的时域资源位置;第一UE使用T号帧的频域资源位置和时域资源位置的资源发送第一UE的广播消息。
Embodiments of the present invention provide a method and device for transmitting broadcast messages, which relate to the field of communications, and solve the problems of reduced communication speed and waste of time-frequency resources caused by reserving time slot intervals. The solution includes: the first UE determines the time-frequency resource information of the first UE in frame 0 according to the current system frame number T and time-frequency resource information used by at least one other UE before frame T; the first UE determines the time-frequency resource information of the first UE according to the current system frame number T; The frame number T and the frequency domain resource position of the first UE in frame 0 determine the frequency domain resource position of the first UE in frame T; the first UE is based on the current system frame number T and the time of the first UE in frame 0. frequency resource information, determine the time slot group position and time slot position of the first UE in frame T, and determine the time domain resource position of the first UE in frame T; the first UE uses the frequency domain resource position of frame T and The resource at the time domain resource location sends the broadcast message of the first UE.
Description
技术领域technical field
本发明涉及通信领域,尤其涉及一种广播消息的传输方法及装置。The present invention relates to the field of communications, and in particular, to a method and device for transmitting broadcast messages.
背景技术Background technique
跳频技术(Frequency-Hopping Spread Spectrum,FHSS)是指载波频率在一定范围内,按某种规律跳变,它是通信领域中的常用通信手段,可以有效的避开干扰,发挥通信效能。Frequency-Hopping Spread Spectrum (FHSS) refers to the carrier frequency hopping within a certain range according to a certain rule. It is a common communication method in the field of communication, which can effectively avoid interference and exert communication efficiency.
具体的,可以将信道资源划分为时域资源和频域资源,如图1所示,每一帧内,在频域方向上又可以将频域资源划分为m个子载波,在时域方向上又可以将时域资源划分为n个时隙,而且,时隙之间设有一定时长的时隙间隔,于是,在一帧内就可以得到m*n个时频资源,假设UE与基站进行通信的一个周期内包含N帧,那么,就可以得到m*n个时频资源序列,例如,0号帧中的第一时频资源、第1帧中的第一时频资源以及第N-1帧中的第一时频资源为一个时频资源序列。Specifically, channel resources can be divided into time domain resources and frequency domain resources. As shown in FIG. 1 , in each frame, the frequency domain resources can be divided into m subcarriers in the frequency domain direction. The time domain resources can also be divided into n time slots, and there is a certain time slot interval between the time slots, so m*n time-frequency resources can be obtained in one frame. If a period of communication includes N frames, then m*n time-frequency resource sequences can be obtained, for example, the first time-frequency resource in frame 0, the first time-frequency resource in
在现有技术中,为了解决D2D(Device-to-Device)设备使用FDM(FrequencyDivision Multiplexing,频分多路复用)的方式进行广播通信时存在的半双工问题(即使用相同时域资源的不同UE无法互相通信),可以使用下面的跳频方案对时频资源进行合理分配:In the prior art, in order to solve the half-duplex problem that exists when D2D (Device-to-Device) devices use FDM (Frequency Division Multiplexing, frequency division multiplexing) for broadcast communication (that is, using the same time domain resources Different UEs cannot communicate with each other), the following frequency hopping schemes can be used to reasonably allocate time-frequency resources:
i(0)=0,1,...,m-1,j(0)=0,1,...,n-1;i(0)=0,1,...,m-1,j(0)=0,1,...,n-1;
i(t)=i(0),j(t)=j(0)+i(0)*t mod n;i(t)=i(0), j(t)=j(0)+i(0)*t mod n;
如图1所示,i(0)为任意UE在0号帧的频域资源位置,j(0)为该UE在0号帧的时域资源位置,i(t)为该UE在T号帧的频域资源位置,j(t)为该UE在T号帧的时域资源位置,也就是说,该UE在T号帧所使用的频时资源,是由它在0号帧的频时资源所决定的。As shown in Figure 1, i(0) is the frequency domain resource position of any UE in frame 0, j(0) is the time domain resource position of the UE in frame 0, and i(t) is the UE's position in frame T The frequency domain resource position of the frame, j(t) is the time domain resource position of the UE in frame T, that is, the frequency and time resources used by the UE in frame T are determined by its frequency in frame 0. time resources.
基于这种特定的广播通信方式,在每个周期(N帧)内使用不同的时频资源的两个UE至多在一个帧内具有相同的时域位置(即j(t)相同),这样就保证了至少在其他N-1帧内,使用不同的时频资源的两个UE可以进行通信,如图1所示,分别使用第一时频资源和第四时频资源的两个UE只有在0号帧内位于相同的时隙内。Based on this specific broadcast communication method, two UEs using different time-frequency resources in each cycle (N frames) have the same time domain position (that is, the same j(t)) in at most one frame, so that It is ensured that at least in other N-1 frames, two UEs using different time-frequency resources can communicate. As shown in Figure 1, the two UEs using the first time-frequency resource and the fourth time-frequency resource respectively Frame 0 is located in the same time slot.
然而,由于时隙之间预留有一定时长的时隙间隔,所以,当使用相邻时域资源的两个UE进行数据收发时需要等待时隙间隔的时长之后才能进行,尤其是在一个时隙本身的时长较短,而导致时隙间隔占比增加的情况下,会很大程度上增加UE的通信速度,并造成了时频资源的浪费。However, since a certain time slot interval is reserved between the time slots, when two UEs using adjacent time domain resources perform data transmission and reception, they need to wait for the time slot interval, especially in a time domain. The duration of the slot itself is short, and when the proportion of the time slot interval increases, the communication speed of the UE will be greatly increased, and time-frequency resources will be wasted.
发明内容SUMMARY OF THE INVENTION
本发明的实施例提供一种广播消息的传输方法及装置,解决了现有技术中UE进行跳频时由于预留时隙间隔所造成的通信速度下降以及时频资源浪费的问题。Embodiments of the present invention provide a method and device for transmitting a broadcast message, which solve the problems in the prior art that the communication speed decreases and the time-frequency resources are wasted due to the reserved time slot interval when the UE performs frequency hopping.
为达到上述目的,本发明的实施例采用如下技术方案:To achieve the above object, the embodiments of the present invention adopt the following technical solutions:
第一方面,本发明的实施例提供一种广播消息的传输方法,包括:In a first aspect, an embodiment of the present invention provides a method for transmitting a broadcast message, including:
第一UE根据当前系统帧号T以及其他至少一个UE在T号帧之前使用的时频资源信息,确定所述第一UE在0号帧的时频资源信息,所述时频资源信息包括频域资源位置和时域资源位置,其中,所述时域资源位置由时隙组位置和时隙组内的时隙位置共同决定,T为大于等于0的整数;The first UE determines the time-frequency resource information of the first UE in frame 0 according to the current system frame number T and the time-frequency resource information used by at least one other UE before frame T, where the time-frequency resource information includes the time-frequency resource information. Domain resource location and time domain resource location, wherein the time domain resource location is jointly determined by the time slot group location and the time slot location in the time slot group, and T is an integer greater than or equal to 0;
所述第一UE根据所述当前系统帧号T和所述第一UE在0号帧的频域资源位置,确定所述第一UE在T号帧的频域资源位置;The first UE determines the frequency domain resource position of the first UE in frame T according to the current system frame number T and the frequency domain resource position of the first UE in frame 0;
所述第一UE根据所述当前系统帧号T和所述第一UE在0号帧的时频资源信息,确定所述第一UE在T号帧的时隙组位置和时隙位置,并确定所述第一UE在T号帧的时域资源位置,其中,在一个N帧的周期内,所述第一UE的时域资源位置与所述第二UE的时域资源位置有N-1次相隔至少3个时隙,所述第二UE为所述其他至少一个UE中的任一个,N为大于1的整数;The first UE determines the time slot group position and time slot position of the first UE in frame T according to the current system frame number T and the time-frequency resource information of the first UE in frame 0, and Determine the time domain resource position of the first UE in frame T, wherein, in a period of N frames, the time domain resource position of the first UE and the time domain resource position of the second UE are N- 1 times are separated by at least 3 time slots, the second UE is any one of the other at least one UE, and N is an integer greater than 1;
所述第一UE使用所述T号帧的频域资源位置和时域资源位置的资源发送所述第一UE的广播消息。The first UE sends the broadcast message of the first UE by using the resources of the frequency domain resource position and the time domain resource position of the T frame.
结合第一方面,在第一方面的第一种可能的实现方式中,所述第一UE根据所述当前系统帧号T和所述第一UE在0号帧的时频资源信息,确定所述第一UE在T号帧的时隙组位置和时隙位置,包括:With reference to the first aspect, in a first possible implementation manner of the first aspect, the first UE determines the frame number T according to the current system frame number T and the time-frequency resource information of the first UE in frame 0 Describe the time slot group position and time slot position of the first UE in frame T, including:
所述第一UE以所述当前系统帧号T为参量,对所述第一UE在0号帧的频域资源位置和时域资源位置进行线性变换,以确定所述第一UE在T号帧的时隙组位置;The first UE uses the current system frame number T as a parameter, and performs linear transformation on the frequency domain resource position and time domain resource position of the first UE in frame 0, to determine that the first UE is in frame number T. the slot group position of the frame;
所述第一UE将所述第一UE在0号帧的时隙位置确定为所述第一UE在T号帧的时隙位置。The first UE determines the time slot position of the first UE in frame 0 as the time slot position of the first UE in frame T.
结第一方面的第一种可能的实现方式,在第一方面的第二种可能的实现方式中,所述第一UE以所述当前系统帧号T为参量,对所述第一UE在0号帧的频域资源位置和时域资源位置进行线性变换,以确定所述第一UE在T号帧的时隙组位置,包括:With reference to the first possible implementation manner of the first aspect, in the second possible implementation manner of the first aspect, the first UE uses the current system frame number T as a parameter to The frequency domain resource position and time domain resource position of frame 0 are linearly transformed to determine the time slot group position of the first UE in frame T, including:
所述第一UE将所述第一UE在0号帧的时隙组位置平移L*T个时隙组后的时域资源位置,确定为所述第一UE在T号帧的时隙组位置,其中,L由所述第一UE在0号帧的时隙位置与所述第一UE在0号帧的频域资源位置共同决定,L为大于等于0的整数。The first UE determines the time domain resource position after shifting the position of the first UE in the time slot group of frame 0 by L*T time slot groups, and determines it as the time slot group of the first UE in frame T position, where L is jointly determined by the time slot position of the first UE in frame 0 and the frequency domain resource position of the first UE in frame 0, and L is an integer greater than or equal to 0.
结合第一方面以及第一方面的第一至第二种可能的实现方式,在第一方面的第三种可能的实现方式中,所述第一UE根据所述当前系统帧号T和所述第一UE在0号帧的频域资源位置,确定所述第一UE在T号帧的频域资源位置,包括:With reference to the first aspect and the first to second possible implementation manners of the first aspect, in a third possible implementation manner of the first aspect, the first UE is based on the current system frame number T and the The frequency domain resource position of the first UE in frame 0, and determining the frequency domain resource position of the first UE in frame T, including:
所述第一UE将所述第一UE在0号帧的频域资源位置,确定为所述第一UE在T号帧的频域资源位置;或者,The first UE determines the frequency domain resource position of the first UE in frame 0 as the frequency domain resource position of the first UE in frame T; or,
所述第一UE将所述第一UE在0号帧的频域资源位置平移c*T个子载波后的频域资源位置,确定为所述第一UE在T号帧的频域资源位置,c为大于0的整数。The first UE determines the frequency domain resource position of the first UE after shifting the frequency domain resource position of the first UE in frame 0 by c*T subcarriers as the frequency domain resource position of the first UE in frame T, c is an integer greater than 0.
结合第一方面以及第一方面的第一至第三种可能的实现方式,在第一方面的第四种可能的实现方式中,所述频域资源位置包括m个子载波,所述时域资源位置包括n个时隙组,每一个时隙组中包含3个时隙,其中,n为大于或等于3*m的素数,n与m均为大于0的整数。With reference to the first aspect and the first to third possible implementation manners of the first aspect, in a fourth possible implementation manner of the first aspect, the frequency domain resource location includes m subcarriers, and the time domain resource The location includes n time slot groups, and each time slot group includes 3 time slots, where n is a prime number greater than or equal to 3*m, and both n and m are integers greater than 0.
第二方面,本发明的实施例提供一种广播消息的传输装置,包括:In a second aspect, an embodiment of the present invention provides an apparatus for transmitting a broadcast message, including:
初始资源确定单元,用于根据当前系统帧号T以及其他至少一个UE在T号帧之前使用的时频资源信息,确定所述第一UE在0号帧的时频资源信息,所述时频资源信息包括频域资源位置和时域资源位置,其中,所述时域资源位置由时隙组位置和时隙组内的时隙位置共同决定,T为大于等于0的整数;The initial resource determination unit is configured to determine the time-frequency resource information of the first UE in frame 0 according to the current system frame number T and the time-frequency resource information used by at least one other UE before frame T. The resource information includes a frequency domain resource location and a time domain resource location, wherein the time domain resource location is jointly determined by the time slot group location and the time slot location in the time slot group, and T is an integer greater than or equal to 0;
频域资源确定单元,用于根据所述当前系统帧号T和所述第一UE在0号帧的频域资源位置,确定所述第一UE在T号帧的频域资源位置;a frequency domain resource determination unit, configured to determine the frequency domain resource position of the first UE in frame T according to the current system frame number T and the frequency domain resource position of the first UE in frame 0;
时域资源确定单元,用于根据所述当前系统帧号T和所述第一UE在0号帧的时频资源信息,确定所述第一UE在T号帧的时隙组位置和时隙位置,并确定所述第一UE在T号帧的时域资源位置,其中,在一个N帧的周期内,所述第一UE的时域资源位置与所述第二UE的时域资源位置有N-1次相隔至少3个时隙,所述第二UE为所述其他至少一个UE中的任一个,N为大于1的整数;A time domain resource determination unit, configured to determine the time slot group position and time slot of the first UE in frame T according to the current system frame number T and the time-frequency resource information of the first UE in frame 0 position, and determine the time domain resource position of the first UE in frame T, wherein, within a period of N frames, the time domain resource position of the first UE and the time domain resource position of the second UE There are N-1 times separated by at least 3 time slots, the second UE is any one of the other at least one UE, and N is an integer greater than 1;
广播消息传输单元,用于使用所述T号帧的频域资源位置和时域资源位置的资源发送所述第一UE的广播消息。A broadcast message transmission unit, configured to send the broadcast message of the first UE by using the resources of the frequency domain resource position and the time domain resource position of the T frame.
结合第二方面,在第二方面的第一种可能的实现方式中,所述时域资源确定单元包括时隙组确定单元和时隙确定单元,其中,With reference to the second aspect, in a first possible implementation manner of the second aspect, the time domain resource determination unit includes a time slot group determination unit and a time slot determination unit, wherein,
所述时隙组确定单元,用于以所述当前系统帧号T为参量,对所述第一UE在0号帧的频域资源位置和时域资源位置进行线性变换,以确定所述第一UE在T号帧的时隙组位置;The time slot group determination unit is configured to use the current system frame number T as a parameter to perform linear transformation on the frequency domain resource position and the time domain resource position of the first UE in frame 0, to determine the first UE. A UE's slot group position in frame T;
所述时隙确定单元,用于将所述第一UE在0号帧的时隙位置确定为所述第一UE在T号帧的时隙位置。The time slot determining unit is configured to determine the time slot position of the first UE in frame 0 as the time slot position of the first UE in frame T.
结合第二方面的第一种可能的实现方式,在第二方面的第二种可能的实现方式中,In combination with the first possible implementation manner of the second aspect, in the second possible implementation manner of the second aspect,
所述时隙组确定单元,具体用于将所述第一UE在0号帧的时隙组位置平移L*T个时隙组后的时域资源位置,确定为所述第一UE在T号帧的时隙组位置,其中,L由所述第一UE在0号帧的时隙位置与所述第一UE在0号帧的频域资源位置共同决定,L为大于等于0的整数。The time-slot group determination unit is specifically configured to shift the time-domain resource position of the first UE in the time-slot group of frame 0 by L*T time-slot groups, and determine that the first UE is in T The position of the time slot group in frame No. 0, where L is jointly determined by the time slot position of the first UE in frame No. 0 and the frequency domain resource position of the first UE in frame No. 0, and L is an integer greater than or equal to 0 .
结合第二方面以及第二方面的第一至第二种可能的实现方式,在第二方面的第三种可能的实现方式中,In combination with the second aspect and the first to second possible implementations of the second aspect, in a third possible implementation of the second aspect,
所述频域资源确定单元,具体用于将所述第一UE在0号帧的频域资源位置,确定为所述第一UE在T号帧的频域资源位置;或者,将所述第一UE在0号帧的频域资源位置平移c*T个子载波后的频域资源位置,确定为所述第一UE在T号帧的频域资源位置,c为大于0的整数。The frequency domain resource determining unit is specifically configured to determine the frequency domain resource position of the first UE in frame 0 as the frequency domain resource position of the first UE in frame T; The frequency domain resource position of a UE shifted by c*T subcarriers in the frequency domain resource position of frame 0 is determined as the frequency domain resource position of the first UE in frame T, where c is an integer greater than 0.
第三方面,本发明的实施例提供一种广播消息的传输装置,所述装置包括处理器以及收发器,其中,In a third aspect, an embodiment of the present invention provides an apparatus for transmitting a broadcast message, the apparatus includes a processor and a transceiver, wherein,
所述处理器,用于根据当前系统帧号T以及其他至少一个UE在T号帧之前使用的时频资源信息,确定所述第一UE在0号帧的时频资源信息,所述第一UE为除所述其他至少一个UE的任一UE;根据所述当前系统帧号T和所述第一UE在0号帧的频域资源位置,确定所述第一UE在T号帧的频域资源位置;并根据所述当前系统帧号T和所述第一UE在0号帧的时频资源信息,确定所述第一UE在T号帧的时隙组位置和时隙位置,并确定所述第一UE在T号帧的时域资源位置,其中,在一个N帧的周期内,所述第一UE的时域资源位置与所述第二UE的时域资源位置有N-1次相隔至少3个时隙,所述第二UE为所述其他至少一个UE中的任一个,N为大于1的整数;The processor is configured to determine the time-frequency resource information of the first UE in frame 0 according to the current system frame number T and the time-frequency resource information used by at least one other UE before frame T. The UE is any UE except the other at least one UE; according to the current system frame number T and the frequency domain resource position of the first UE in frame 0, determine the frequency of the first UE in frame T. domain resource position; and according to the current system frame number T and the time-frequency resource information of the first UE in frame 0, determine the time slot group position and time slot position of the first UE in frame T, and Determine the time domain resource position of the first UE in frame T, wherein, in a period of N frames, the time domain resource position of the first UE and the time domain resource position of the second UE are N- 1 times are separated by at least 3 time slots, the second UE is any one of the other at least one UE, and N is an integer greater than 1;
所述收发器,用于使用所述T号帧的频域资源位置和时域资源位置的资源发送所述第一UE的广播消息。The transceiver is configured to send the broadcast message of the first UE by using the resources of the frequency domain resource location and the time domain resource location of the T frame.
结合第三方面,在第三方面的第一种可能的实现方式中,In combination with the third aspect, in the first possible implementation manner of the third aspect,
所述处理器,具体用于以所述当前系统帧号T为参量,对所述第一UE在0号帧的频域资源位置和时域资源位置进行线性变换,以确定所述第一UE在T号帧的时隙组位置;以及将所述第一UE在0号帧的时隙位置确定为所述第一UE在T号帧的时隙位置。The processor is specifically configured to use the current system frame number T as a parameter to linearly transform the frequency domain resource position and the time domain resource position of the first UE in frame 0 to determine the first UE in the time slot group position of frame T; and determining the time slot position of the first UE in frame 0 as the time slot position of the first UE in frame T.
结合第三方面的第一种可能的实现方式,在第三方面的第二种可能的实现方式中,In combination with the first possible implementation manner of the third aspect, in the second possible implementation manner of the third aspect,
所述处理器,具体用于将所述第一UE在0号帧的时隙组位置平移L*T个时隙组后的时域资源位置,确定为所述第一UE在T号帧的时隙组位置,其中,L由所述第一UE在0号帧的时隙位置与所述第一UE在0号帧的频域资源位置共同决定,L为大于等于0的整数。The processor is specifically configured to shift the time domain resource position of the first UE in the time slot group of frame 0 by L*T time slot groups, and determine the position of the first UE in frame T of the time domain resource position. The slot group position, where L is jointly determined by the slot position of the first UE in frame 0 and the frequency domain resource position of the first UE in frame 0, and L is an integer greater than or equal to 0.
结合第三方面以及第三方面的第一至第二种可能的实现方式,在第三方面的第三种可能的实现方式中,In combination with the third aspect and the first to second possible implementations of the third aspect, in a third possible implementation of the third aspect,
所述处理器,具体用于将所述第一UE在0号帧的频域资源位置,确定为所述第一UE在T号帧的频域资源位置;或者,将所述第一UE在0号帧的频域资源位置平移c*T个子载波后的频域资源位置,确定为所述第一UE在T号帧的频域资源位置,c为大于0的整数。The processor is specifically configured to determine the frequency domain resource position of the first UE in frame 0 as the frequency domain resource position of the first UE in frame T; The frequency domain resource position of frame 0 shifted by c*T subcarriers is determined as the frequency domain resource position of the first UE in frame T, where c is an integer greater than 0.
本发明的实施例提供一种广播消息的传输方法及装置,通过将时域资源位置划分为时隙组位置和时隙位置,这样一来,第一UE便可根据在0号帧时的隙组位置和时隙位置,确定第一UE在T号帧的时隙组位置和时隙位置,那么,在一个N帧的周期内,第一UE的时域资源位置与第二UE的时域资源位置有N-1次相隔至少3个时隙,也就是说,在N-1帧中,任意两个使用不同时频资源的UE的时域资源位置都至少间隔3个时隙,由于只有时隙相邻的UE进行广播消息收发时才需要等待时隙间隔,所以本发明中任意两个使用不同时频资源的UE在收发广播消息时,均无需等待预留的时隙间隔就可以进行广播消息的收发操作,解决了现有技术中UE进行跳频时由于预留时隙间隔所造成的通信速度下降以及时频资源浪费的问题。Embodiments of the present invention provide a method and device for transmitting a broadcast message. By dividing the time domain resource location into time slot group locations and time slot locations, the first UE can Group position and time slot position, determine the time slot group position and time slot position of the first UE in frame T, then, within a period of N frames, the time domain resource position of the first UE and the time domain of the second UE The resource locations are separated by at least 3 time slots N-1 times, that is, in the N-1 frame, the time domain resource locations of any two UEs using different time-frequency resources are separated by at least 3 time slots. UEs with adjacent time slots only need to wait for the time slot interval when transmitting and receiving broadcast messages, so any two UEs using different time-frequency resources in the present invention can send and receive broadcast messages without waiting for the reserved time slot interval. The operation of sending and receiving broadcast messages solves the problems of the decrease of communication speed and the waste of time-frequency resources caused by the reserved time slot interval when the UE performs frequency hopping in the prior art.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,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。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.
图1为现有技术中信道资源划分的示意图;1 is a schematic diagram of channel resource division in the prior art;
图2为本发明实施例提供的一种广播消息的传输方法的流程图一;2 is a
图3为本发明实施例提供的一种广播消息的传输方法的流程图二;3 is a second flowchart of a method for transmitting a broadcast message according to an embodiment of the present invention;
图4为本发明实施例提供的一种广播消息的传输方法的跳频图案;4 is a frequency hopping pattern of a method for transmitting a broadcast message according to an embodiment of the present invention;
图5为本发明实施例提供的一种广播消息的传输装置的硬件示意图;5 is a schematic diagram of hardware of an apparatus for transmitting a broadcast message according to an embodiment of the present invention;
图6为本发明实施例提供的一种广播消息的传输装置的结构示意图一;FIG. 6 is a schematic structural diagram 1 of a broadcast message transmission apparatus according to an embodiment of the present invention;
图7为本发明实施例提供的一种广播消息的传输装置的结构示意图二。FIG. 7 is a second schematic structural diagram of an apparatus for transmitting a broadcast message according to an embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
为了应用本发明的实施例提供一种广播消息的传输方法进行跳频,在每一帧内,如表1所示,可以将信道资源在水平的频域方向上划分为m个子载波i,在垂直的时域方向上划分为n个时隙组j,每一个时隙组中包含3个时隙k,其中,n为大于或等于3*m的素数,n>m>0。In order to apply an embodiment of the present invention to provide a method for transmitting broadcast messages to perform frequency hopping, in each frame, as shown in Table 1, the channel resources can be divided into m subcarriers i in the horizontal frequency domain direction. In the vertical time domain direction, it is divided into n time slot groups j, each time slot group includes 3 time slots k, where n is a prime number greater than or equal to 3*m, n>m>0.
表1Table 1
在现有技术中,当使用相邻时隙的两个UE(例如A和B)进行广播信息的收发时,需要等待预留的时隙间隔的时长之后才能收发广播信息,因此,当一个时隙本身的时长较短时(例如时隙为40毫秒,时隙间隔为20毫秒),会导致时隙间隔占比增加,在很大程度上增加UE的通信速度,并造成了时频资源的浪费。In the prior art, when two UEs (such as A and B) in adjacent time slots are used to send and receive broadcast information, they need to wait for the duration of the reserved time slot interval before sending and receiving broadcast information. When the duration of the slot itself is short (for example, the time slot is 40 milliseconds and the time slot interval is 20 milliseconds), the proportion of the time slot interval will increase, the communication speed of the UE will be increased to a large extent, and the time-frequency resources will be reduced. waste.
在本发明中,如表1所示,将信道时频资源重新进行划分,将时域资源划分为时隙组和时隙组内的时隙,即通过序列对(j,k)区分时域资源位置,这样一来,当使用不同时频资源的两个UE(例如A和C)尽可能的在跳频周期(N个帧)中都不在同一个时隙组跳频时,UE之间进行广播信息的收发时就无需预留相邻时隙间的时隙间隔,提高通信速度的同时提高了时频资源的利用率。In the present invention, as shown in Table 1, the channel time-frequency resources are re-divided, and the time-domain resources are divided into time-slot groups and time-slots in the time-slot groups, that is, the time-domain is distinguished by the sequence pair (j, k). Resource location, in this way, when two UEs (such as A and C) using different time-frequency resources do not hop in the same time slot group as much as possible in the frequency hopping period (N frames), the difference between the UEs When sending and receiving broadcast information, it is not necessary to reserve time slot intervals between adjacent time slots, which improves the communication speed and improves the utilization rate of time-frequency resources.
实施例一Example 1
本发明的实施例提供一种广播消息的传输方法,如图2所示,包括:An embodiment of the present invention provides a method for transmitting a broadcast message, as shown in FIG. 2 , including:
101、第一UE根据当前系统帧号T以及其他至少一个UE在T号帧之前使用的时频资源信息,确定第一UE在0号帧的时频资源信息,T为大于等于0的整数。101. The first UE determines the time-frequency resource information of the first UE in frame 0 according to the current system frame number T and time-frequency resource information used by at least one other UE before frame T, where T is an integer greater than or equal to 0.
102、第一UE根据当前系统帧号T和第一UE在0号帧的频域资源位置,确定第一UE在T号帧的频域资源位置。102. The first UE determines the frequency domain resource position of the first UE in frame T according to the current system frame number T and the frequency domain resource position of the first UE in frame 0.
103、第一UE根据当前系统帧号T和第一UE在0号帧的时频资源信息,确定第一UE在T号帧的时隙组位置和时隙位置,并确定第一UE在T号帧的时域资源位置,其中,在一个N帧的周期内,第一UE的时域资源位置与第二UE的时域资源位置有N-1次相隔至少3个时隙,该第二UE为其他至少一个UE中的任一个,N为大于1的整数。103. The first UE determines the time slot group position and time slot position of the first UE in frame T according to the current system frame number T and the time-frequency resource information of the first UE in frame 0, and determines that the first UE is in T The time domain resource position of the
104、第一UE使用T号帧的频域资源位置和时域资源位置的资源发送第一UE的广播消息。104. The first UE sends a broadcast message of the first UE by using the resources of the frequency domain resource position and the time domain resource position of the T frame.
在步骤101中,该时频资源信息包括频域资源位置和时域资源位置,其中,该时域资源位置由时隙组位置和每一个时隙组内的时隙位置共同决定,该第一UE可以为D2D系统中所有UE中的任意一个。In
具体的,第一UE可以通过基站的系统广播获取当前的系统帧号T,另外,第一UE在T号帧之前,还会侦听其他UE在0号帧至T-1号帧发送各自的广播消息时,其他UE所使用的时频资源信息,即其他UE在0号帧至T-1号帧使用的频域资源位置i,以及时域资源位置(j,k)。进而,第一UE根据其他UE在T号帧之前使用的频域资源位置i,以及时域资源位置(j,k),确定第一UE自己在第0号帧的时频资源信息,该时频资源信息包括第一UE的频域资源位置i(0),以及时第一UE的时域资源位置(j(0),k(0))。Specifically, the first UE can obtain the current system frame number T through the system broadcast of the base station. In addition, before the T frame, the first UE will also listen to other UEs sending their respective frame numbers from frames 0 to T-1. When broadcasting the message, the time-frequency resource information used by other UEs, that is, the frequency domain resource position i used by other UEs from frame 0 to frame T-1, and the time domain resource position (j, k). Further, the first UE determines the time-frequency resource information of the first UE itself in frame 0 according to the frequency domain resource position i used by other UEs before frame T and the time domain resource position (j, k). The frequency resource information includes the frequency domain resource position i(0) of the first UE, and the time domain resource position (j(0), k(0)) of the first UE in time.
例如,由于第一UE侦听其他UE在0号帧至T-1号帧发送各自的广播消息时所使用的时频资源信息,当某一时频资源从0号帧至T-1号帧一直没有UE占用时,第一UE便可确定该时频资源为自己发送广播信息时占用的时频资源,并确定自己在第0号帧的时频资源信息,即频域资源位置i(0),以及时域资源位置(j(0),k(0))。当然,如果当前的系统帧号T为0号帧时,即当前帧为第1帧,那么,第一UE可以直接根据基站或UE之间发送的系统广播确定自己在0号帧的时频资源信息。For example, since the first UE listens to the time-frequency resource information used by other UEs to send their respective broadcast messages from frame 0 to frame T-1, when a certain time-frequency resource continues from frame 0 to frame T-1 When there is no UE occupied, the first UE can determine that the time-frequency resource is the time-frequency resource occupied when it sends broadcast information, and determine its own time-frequency resource information in frame 0, that is, the frequency domain resource position i(0) , and the time domain resource location (j(0), k(0)). Of course, if the current system frame number T is frame 0, that is, the current frame is the first frame, then the first UE can directly determine its own time-frequency resources in frame 0 according to the system broadcast sent between the base station or the UE. information.
在步骤102中,在确定第一UE在0号帧的频域资源位置i(0),以及时第一UE的域资源位置(j(0),k(0))之后,第一UE根据当前系统帧号T和第一UE在0号帧的频域资源位置,确定第一UE在T号帧的频域资源位置i(T)。In step 102, after determining the frequency domain resource position i(0) of the first UE in frame 0 and the domain resource position (j(0), k(0)) of the first UE in time, the first UE according to The current system frame number T and the frequency domain resource position of the first UE in frame 0 determine the frequency domain resource position i(T) of the first UE in frame T.
具体的,第一UE可以将第一UE在0号帧的频域资源位置i(0),确定为第一UE在T号帧的频域资源位置i(T);或者,第一UE将第一UE在0号帧的频域资源位置i(0)平移c*T个子载波后的频域资源位置,确定为第一UE在T号帧的频域资源位置i(T),其中,c为大于0的整数。Specifically, the first UE may determine the frequency domain resource position i(0) of the first UE in frame 0 as the frequency domain resource position i(T) of the first UE in frame T; The frequency domain resource position i(0) of the first UE in frame 0 shifted by c*T subcarriers is determined as the frequency domain resource position i(T) of the first UE in frame T, wherein, c is an integer greater than 0.
在步骤103中,在确定第一UE在0号帧的频域资源位置i(0),以及时第一UE的域资源位置(j(0),k(0))之后,第一UE根据第一UE在0号帧的频域资源位置i(0),以及第一UE的时域资源位置(j(0),k(0)),分别确定第一UE在T号帧的时隙组位置j(T)和时隙位置k(T),这样,j(T)和k(T)便组成了第一UE在T号帧的时域资源位置。In step 103, after determining the frequency domain resource position i(0) of the first UE in frame 0 and the domain resource position (j(0), k(0)) of the first UE in time, the first UE according to The frequency domain resource position i(0) of the first UE in frame 0 and the time domain resource position (j(0), k(0)) of the first UE respectively determine the time slot of the first UE in frame T The group position j(T) and the slot position k(T), in this way, j(T) and k(T) constitute the time domain resource position of the first UE in frame T.
具体的,在确定第一UE在T号帧的时隙组位置j(T)时,第一UE可以以当前系统帧号T为参量,对第一UE在0号帧的频域资源位置和时域资源位置进行线性变换,以确定第一UE在T号帧的时隙组位置,以使得第一UE(设第一UE为A)在一个N帧的周期内的时域资源位置,与第二UE(设第二UE为B)的时域资源位置有N-1次相隔至少3个时隙,其中,该第二UE为其他UE中的任一个,也就是说,jA(T)-jB(T)在一个N帧的周期内至少有N-1次不为0。Specifically, when determining the time slot group position j(T) of the first UE in frame T, the first UE may use the current system frame number T as a parameter to determine the frequency domain resource position and the frequency domain resource position of the first UE in frame 0 and The time domain resource position is linearly transformed to determine the time slot group position of the first UE in frame T, so that the time domain resource position of the first UE (set the first UE as A) in a period of N frames, and The time domain resource positions of the second UE (set the second UE as B) are N-1 times separated by at least 3 time slots, wherein the second UE is any one of the other UEs, that is, j A (T )-j B (T) is not zero at least N-1 times in a period of N frames.
这样一来,任意两个使用不同时频资源的UE(例如A和B)在跳频周期(N个帧)中,可以尽可能的不在同一个时隙组中,那么,UE之间进行广播信息的收发时就无需预留相邻时隙间的时隙间隔,从而提高了通信速度,且提高了时频资源的利用率。In this way, any two UEs (such as A and B) that use different time-frequency resources may not be in the same time slot group as much as possible in the frequency hopping period (N frames), then broadcast between UEs. There is no need to reserve time slot intervals between adjacent time slots when information is sent and received, thereby improving the communication speed and the utilization rate of time-frequency resources.
进一步地,第一UE对第一UE在0号帧的频域资源位置和时域资源位置进行线性变换时,可以将第一UE在0号帧的时隙组位置平移L*T个时隙组后的时域资源位置,确定为第一UE在T号帧的时隙组位置,其中,L为第一UE在0号帧的时隙位置与第一UE在0号帧的频域资源位置共同决定的,L为大于等于0的整数。Further, when the first UE performs linear transformation on the frequency domain resource position and the time domain resource position of the first UE in frame 0, the position of the first UE in the time slot group of frame 0 may be shifted by L*T time slots. The time domain resource position after the group is determined as the time slot group position of the first UE in frame T, where L is the time slot position of the first UE in frame 0 and the frequency domain resource of the first UE in frame 0 The position is determined jointly, and L is an integer greater than or equal to 0.
在步骤104中,在第一UE确定了在T号帧的频域资源位置i(T)、时隙组位置j(T)和时隙位置k(T)之后,第一UE使用该频域资源位置i(T)、时隙组位置j(T)和时隙位置k(T)所指示的资源发送第一UE的广播消息。In
本发明的实施例提供一种广播消息的传输方法,通过将时域资源位置划分为时隙组位置和时隙位置,这样一来,第一UE便可根据在0号帧时的隙组位置和时隙位置,确定第一UE在T号帧的时隙组位置和时隙位置,那么,在一个N帧的周期内,第一UE的时域资源位置与第二UE的时域资源位置有N-1次相隔至少3个时隙,也就是说,在N-1帧中,任意两个使用不同时频资源的UE的时域资源位置都至少间隔3个时隙,由于只有时隙相邻的UE进行广播消息收发时才需要等待时隙间隔,所以本发明中任意两个使用不同时频资源的UE在收发广播消息时,均无需等待预留的时隙间隔就可以进行广播消息的收发操作,解决了现有技术中UE进行跳频时由于预留时隙间隔所造成的通信速度下降以及时频资源浪费的问题。An embodiment of the present invention provides a method for transmitting a broadcast message. By dividing the time-domain resource position into a time slot group position and a time slot position, the first UE can and time slot position, determine the time slot group position and time slot position of the first UE in frame T, then, in a period of N frames, the time domain resource position of the first UE and the time domain resource position of the second UE There are N-1 times separated by at least 3 time slots, that is, in the N-1 frame, the time domain resource positions of any two UEs using different time-frequency resources are separated by at least 3 time slots, because there are only time slots. Adjacent UEs only need to wait for the time slot interval when transmitting and receiving broadcast messages. Therefore, when any two UEs using different time-frequency resources in the present invention send and receive broadcast messages, they can broadcast messages without waiting for the reserved time slot interval. The sending and receiving operation of the device solves the problems of the decrease of communication speed and the waste of time-frequency resources caused by the reserved time slot interval when the UE performs frequency hopping in the prior art.
实施例二
本发明的实施例提供一种广播消息的传输方法,如图3所示,包括:An embodiment of the present invention provides a method for transmitting a broadcast message, as shown in FIG. 3 , including:
201、第一UE根据当前系统帧号T以及其他UE在T号帧之前使用的时频资源信息,确定第一UE在于T号帧对应的0号帧的频域资源位置、时隙组位置和时隙位置,T为大于等于0的整数;201. The first UE determines, according to the current system frame number T and the time-frequency resource information used by other UEs before the T frame, the frequency domain resource position, the time slot group position and the time slot group position of the first UE in the frame 0 corresponding to the T frame. Time slot position, T is an integer greater than or equal to 0;
202、第一UE将第一UE在0号帧的频域资源位置平移c*T个子载波后的频域资源位置,确定为第一UE在T号帧的频域资源位置,c为大于等于0的整数;202. The first UE shifts the frequency domain resource position of the first UE in frame 0 by c*T subcarriers to determine the frequency domain resource position of the first UE in frame T, where c is greater than or equal to an integer of 0;
203、第一UE以当前系统帧号T为参量,对第一UE在0号帧的频域资源位置和时域资源位置进行线性变换,以确定第一UE在T号帧的时隙组位置;203. The first UE uses the current system frame number T as a parameter to linearly transform the frequency domain resource position and the time domain resource position of the first UE in frame 0 to determine the time slot group position of the first UE in frame T. ;
204、第一UE将第一UE在0号帧的时隙位置确定为第一UE在T号帧的时隙位置;204. The first UE determines the time slot position of the first UE in frame 0 as the time slot position of the first UE in frame T;
205、在T号帧时,第一UE使用步骤202至204中确定的T号帧的频域资源位置、时隙组位置和时隙位置所决定的时频资源信息发送第一UE的广播消息。205. During frame T, the first UE sends the broadcast message of the first UE using the time-frequency resource information determined by the frequency domain resource position, time slot group position and time slot position of the T frame determined in
在步骤201中,如表1所示,时频资源信息包括频域资源位置i和时域资源位置(j,k),其中,时域资源位置(j,k)由时隙组位置j和每一个时隙组内的时隙位置k共同决定,为方便描述,以下实施例中以终端A作为第一UE,以终端B作为第二UE进行阐述。In
具体的,第一UE可以通过基站的系统广播获取当前的系统帧号N,同时,第一UE在T号帧之前,还会侦听其他UE在0号帧至第T-1帧发送各自的广播消息时,其他UE所使用的时频资源信息,即其他UE在0号帧至第T-1帧使用的频域资源位置i,以及时域资源位置(j,k)。进而,第一UE根据其他UE在T号帧之前使用的频域资源位置i,以及时域资源位置(j,k),确定自己在0号帧的时频资源信息,该时频资源信息包括第一UE的频域资源位置iA(0),以及时第一UE的时域资源位置(jA(0),kA(0)),T≥0。Specifically, the first UE can obtain the current system frame number N through the system broadcast of the base station, and at the same time, before the T frame, the first UE will also listen to other UEs sending their respective frames from the 0th frame to the T-1th frame. When broadcasting the message, the time-frequency resource information used by other UEs, that is, the frequency domain resource position i used by other UEs from frame 0 to frame T-1, and the time domain resource position (j, k). Further, the first UE determines its own time-frequency resource information in frame 0 according to the frequency-domain resource position i and the time-domain resource position (j, k) used by other UEs before frame T, where the time-frequency resource information includes The frequency domain resource position i A (0) of the first UE, and the time domain resource position (j A (0), k A (0)) of the first UE in time, T≥0.
在确定第一UE在0号帧的频域资源位置iA(0),以及时第一UE的时域资源位置(jA(0),kA(0))之后,第一UE根据当前系统帧号T和第一UE在0号帧的频域资源位置,执行步骤202以确定第一UE在T号帧的频域资源位置iA(T),或者,第一UE也可以执行步骤203至204确定第一UE在T号帧的时域资源位置(jA(T),kA(T))。After determining the frequency domain resource position i A (0) of the first UE in frame 0 and the time domain resource position (j A (0), k A (0)) of the first UE, the first UE according to the current The system frame number T and the frequency domain resource position of the first UE in frame 0, execute
在步骤202中,第一UE根据当前系统帧号T和第一UE在0号帧的频域资源位置,确定第一UE在T号帧的频域资源位置iA(T)时,可以将将第一UE在0号帧的频域资源位置iA(0)平移c*T个子载波后的频域资源位置,确定为第一UE在T号帧的频域资源位置iA(T),c为大于等于0的整数,即:In
iA(T)=iA(0)+c*T mod m。i A (T)=i A (0)+c*T mod m.
可以看出,当c为0时,第一UE将第一UE在0号帧的频域资源位置iA(0),确定为第一UE在T号帧的频域资源位置iA(T)。It can be seen that when c is 0, the first UE determines the frequency domain resource position i A (0) of the first UE in frame 0 as the frequency domain resource position i A (T) of the first UE in frame T ).
在步骤203中,第一UE根据当前系统帧号T和第一UE在0号帧的时频资源信息,确定第一UE在T号帧的时隙组位置jA(T)时,第一UE可以以当前系统帧号T为参量,对第一UE在0号帧的频域资源位置iA(0)和时域资源位置(jA(0),kA(0))进行线性变换,以确定第一UE在T号帧的时隙组位置jA(T),以使得第一UE(终端A)在一个N帧的周期内的时域资源位置,与第二UE(终端B)的时域资源位置有N-1次相隔至少3个时隙,也就是说,jA(T)-jB(T)不为0。这样一来,任意两个使用不同时频资源的UE(例如A和B)在跳频周期(N个帧)中,可以尽可能的不在同一个时隙组中,那么,UE之间进行广播信息的收发时就无需预留相邻时隙间的时隙间隔,从而提高了通信速度,且提高了时频资源的利用率。In
示例性的,第一UE可以将第一UE在0号帧的时隙组位置jA(0)平移L*T个时隙组后的时域资源位置,确定为第一UE在T号帧的时隙组位置jA(T),其中,L为第一UE在0号帧的时隙位置与第一UE在0号帧的频域资源位置共同决定的,L≥0,即:Exemplarily, the first UE may shift the time domain resource position of the first UE in the time slot group position j A (0) of frame 0 by L*T time slot groups, and determine that the first UE is in frame T. The time slot group position j A (T) of , where L is jointly determined by the time slot position of the first UE in frame 0 and the frequency domain resource position of the first UE in frame 0, L ≥ 0, that is:
jA(T)=jA(0)+L*T=jA(0)+(3iA(0)+kA(0))*T(1)mod n;j A (T)=j A (0)+L*T=j A (0)+(3i A (0)+k A (0))*T(1)mod n;
其中,当表1中n为大于或等于3*m的素数时,上式可以使得第一UE(终端A)在一个N帧的周期内的时域资源位置,与第二UE(终端B)的时域资源位置有N-1次相隔至少3个时隙,证明如下:Wherein, when n in Table 1 is a prime number greater than or equal to 3*m, the above formula can make the time domain resource position of the first UE (terminal A) in a period of N frames, and the second UE (terminal B) The time domain resource positions of N-1 times are separated by at least 3 time slots, which is proved as follows:
jA(T)=jA(0)+(3iA(0)+kA(0))*T mod n;j A (T)=j A (0)+(3i A (0)+k A (0))*T mod n;
jB(T)=jB(0)+(3iB(0)+kB(0))*T mod n;j B (T)=j B (0)+(3i B (0)+k B (0))*T mod n;
假设kA(0)≤kB(0),Assuming k A (0)≤k B (0),
1)当kA(0)=kB(0)时:1) When k A (0)=k B (0):
jA(T)-jB(T)=jA(0)+(3iA(0)+kA(0))*T-jB(0)+(3iB j A (T)-j B (T)=j A (0)+(3i A (0)+k A (0))*Tj B (0)+(3i B
(0)+kB(0))*T(0)+k B (0))*T
=jA(0)-jB(0)+3(iA(0)-iB(0))*T mod n如果iA(0)=iB(0),由于终端A与终端B使用的是不同的时频资源,因此,jA(0)不等于jB(0),因此,jA(T)-jB(T)不为0,所以,终端A与终端B在一个周期内任意T号帧的时隙组位置至少相隔3个时隙。=j A (0)-j B (0)+3(i A (0)-i B (0))*T mod nIf i A (0)=i B (0), since terminal A and terminal B Different time-frequency resources are used. Therefore, j A (0) is not equal to j B (0). Therefore, j A (T)-j B (T) is not 0. Therefore, terminal A and terminal B are in one The positions of the time slot groups of any frame T in the period are at least 3 time slots apart.
如果iA(0)不等于iB(0),那么,只有在jA(0)-jB(0)+3(iA(0)-iB(0))*T为0时,终端A与终端B在T号帧的时隙组位置相同,由于n为大于或等于3*m的素数,因此,等式jA(0)-jB(0)+3(iA(0)-iB(0))*T=0在一个N帧的周期内只有一个解,即有N-1次jA(T)-jB(T)不为0的情况。If i A (0) is not equal to i B (0), then only when j A (0)-j B (0)+3(i A (0)-i B (0))*T is 0, Terminal A and terminal B are in the same time slot group position in frame T. Since n is a prime number greater than or equal to 3*m, the equation j A (0)-j B (0)+3(i A (0 )-i B (0))*T=0 There is only one solution in a period of N frames, that is, there are N-1 times where j A (T)-j B (T) is not 0.
2)当kA(0)不等于kB(0)时,可以分为两种情况,即:2) When k A (0) is not equal to k B (0), it can be divided into two cases, namely:
kA(0)与kB(0)相差为1或者kA(0)与kB(0)相差为2。The difference between k A (0) and k B (0) is 1 or the difference between k A (0) and k B (0) is 2.
具体的,当kA(0)与kB(0)相差为1时,即:kA(0)=0,kB(0)=1;或者,kA(0)=1,kB(0)=2。Specifically, when the difference between k A (0) and k B (0) is 1, that is: k A (0)=0, k B (0)=1; or, k A (0)=1, k B (0)=2.
此时,只有当jA(T)-jB(T)=0时,终端A与终端B在T号帧的时隙组位置相同,终端A与终端B的时隙位置才会相邻。At this time, only when j A (T)-j B (T)=0, terminal A and terminal B have the same time slot group position in frame T, and the time slot positions of terminal A and terminal B will be adjacent.
jA(T)-jB(T)=jA(0)-jB(0)+(3(iA(0)-iB(0))-1)*T mod nj A (T)-j B (T)=j A (0)-j B (0)+(3(i A (0)-i B (0))-1)*T mod n
由于n为大于或等于3*m的素数,因此,上式在一个N帧的周期内,只有1次jA(T)-jB(T)为0的情况,因此,在一个N帧的周期内,有N-1次终端A与终端B的时隙位置不相邻的情况。Since n is a prime number greater than or equal to 3*m, the above formula has only one case where j A (T)-j B (T) is 0 in a period of N frames. Therefore, in an N frame In a period, there are N-1 times that the time slot positions of terminal A and terminal B are not adjacent to each other.
当kA(0)与kB(0)相差为2时,即:kA(0)=0,kB(0)=2,此时,只有当jA(T)-jB(T)=1时,终端A与终端B在T号帧的时隙位置才会相邻。When the difference between k A (0) and k B (0) is 2, that is: k A (0)=0, k B (0)=2, at this time, only when j A (T)-j B (T )=1, the terminal A and the terminal B are adjacent to each other in the time slot position of the T frame.
jA(T)-jB(T)=jA(0)-jB(0)+(3(iA(0)-iB(0))-2)*T mod nj A (T)-j B (T)=j A (0)-j B (0)+(3(i A (0)-i B (0))-2)*T mod n
由于n为大于或等于3*m的素数,因此,上式在一个N帧的周期内,只有1次jA(T)-jB(T)为1的情况,因此,在一个N帧的周期内,有N-1次终端A与终端B的时隙位置不相邻的情况。Since n is a prime number greater than or equal to 3*m, the above formula has only one case where j A (T)-j B (T) is 1 in a period of N frames. Therefore, in a N frame In a period, there are N-1 times that the time slot positions of terminal A and terminal B are not adjacent to each other.
综上,第一UE根据(1)式可以确定第一UE在T号帧的时隙组位置jA(T),且保证在一个N帧的周期内,第一UE(终端A)的时域资源位置与第二UE(终端B)的时域资源位置有N-1次相隔至少3个时隙。To sum up, the first UE can determine the time slot group position j A (T) of the first UE in frame T according to formula (1), and ensure that within a period of N frames, the time of the first UE (terminal A) The domain resource position and the time domain resource position of the second UE (terminal B) are separated by at least 3 time slots N-1 times.
在步骤204中,第一UE在确定第一UE在T号帧的时隙位置kA(T)时,可以将第一UE在0号帧的时隙位置kA(0)确定为第一UE在T号帧的时隙位置kA(T),即:In
kA(T)=kA(0)。k A (T)=k A (0).
在步骤205中,当第一UE执行完上述步骤201至204后,可以确定第一UE在T号帧的频域资源位置iA(T)、时隙组位置jA(T)以及时隙位置kA(T),那么,第一UE便可以获取频域资源位置iA(T)、时隙组位置jA(T)以及时隙位置kA(T)所指示的位置的资源,并使用该资源发送第一UE的广播消息。In
可以看出,若任意UE都按照上述步骤201至205的方法发送各自的广播消息,就可以保证任意两个使用不同时频资源信息的UE在发送广播消息时,在每个N帧的周期内,都有N-1次时隙位置不相邻的情况,因此,这N-1次广播消息的收发过程中都无需等待预留的时隙间隔进行数据传输,提高了UE之间的通信速率,且提高了时频资源的利用率。It can be seen that if any UE sends its own broadcast message according to the method in the
示例性的,如图4所示,为当m为2,n为7,c为0时,周期为7帧的情况下,UE按照上述广播消息的传输方法进行跳频得到的跳频图案,其中f为帧号。以1号时频资源信息为例,在0号帧时i(0)=0,j(0)=0,k(0)=1,在第1帧时,i(1)=i(0)+c*1=0;j(0)=j(0)+(3i(0)+k(0))*1=1;k(1)=k(0)=1。Exemplarily, as shown in FIG. 4 , when m is 2, n is 7, and c is 0, and the period is 7 frames, the UE performs frequency hopping according to the above-mentioned transmission method of the broadcast message. Frequency hopping pattern obtained, where f is the frame number. Taking No. 1 time-frequency resource information as an example, in frame 0, i(0)=0, j(0)=0, k(0)=1, and in
在一个7帧的周期内,在0号帧时1号时频资源相邻时隙的位置上的时频资源,在第1至第6帧中从来没有重复出现过,因此,这6次广播消息的收发过程中都无需等待预留的时隙间隔,就可以进行数据传输。In a period of 7 frames, the time-frequency resource at the position of the adjacent time slot of time-frequency resource No. 1 in frame 0 has never appeared repeatedly in
本发明的实施例提供一种广播消息的传输方法,通过将时域资源位置划分为时隙组位置和时隙位置,这样一来,第一UE便可根据在0号帧的隙组位置和时隙位置,确定第一UE在T号帧的时隙组位置和时隙位置,那么,在一个N帧的周期内,第一UE的时域资源位置与第二UE的时域资源位置有N-1次相隔至少3个时隙,也就是说,在N-1帧中,任意两个使用不同时频资源的UE的时域资源位置都至少间隔3个时隙,由于只有时隙相邻的UE进行广播消息收发时才需要等待时隙间隔,所以本发明中任意两个使用不同时频资源的UE在收发广播消息时,均无需等待预留的时隙间隔就可以进行广播消息的收发操作,解决了现有技术中UE进行跳频时由于预留时隙间隔所造成的通信速度下降以及时频资源浪费的问题。Embodiments of the present invention provide a method for transmitting broadcast messages. By dividing the time domain resource position into time slot group positions and time slot positions, the first UE can Time slot position, determine the time slot group position and time slot position of the first UE in frame T, then, in a period of N frames, the time domain resource position of the first UE and the time domain resource position of the second UE have the same value. N-1 times are separated by at least 3 time slots, that is, in the N-1 frame, the time domain resource positions of any two UEs using different time-frequency resources are separated by at least 3 time slots. Neighboring UEs only need to wait for the time slot interval when transmitting and receiving broadcast messages, so any two UEs using different time-frequency resources in the present invention can send and receive broadcast messages without waiting for the reserved time slot interval when transmitting and receiving broadcast messages. The transceiver operation solves the problems of the decrease of communication speed and the waste of time-frequency resources caused by the reserved time slot interval when the UE performs frequency hopping in the prior art.
实施例三
附图5示出的是本发明的一种广播消息的传输装置的硬件示意图。FIG. 5 shows a hardware schematic diagram of a broadcast message transmission apparatus according to the present invention.
其中,该广播消息的传输装置,可以是D2D(Device to Device,设备对设备)通信网络(即设备之间不经过基站而直接进行的通信方式)中的各种UE。The apparatus for transmitting the broadcast message may be various UEs in a D2D (Device to Device, device-to-device) communication network (that is, a direct communication method between devices without going through a base station).
如图5,所述控制设备包括处理器11、收发器12、存储器13以及总线14。As shown in FIG. 5 , the control device includes a
其中,处理器11、收发器12和存储器13通过总线14进行通信。The
处理器11,是UE的控制中心,处理器11通过对收发器12接收到的数据进行处理,并调用存储器13中的软件或程序,执行所述UE的各项功能。The
收发器12,可用于收发信息或通话过程中,信号的接收和发送,收发器12接收终端发送的信息后,给处理器11处理;另外,收发器12可以通过无线通信与网络和其他设备通信。The
存储器13,可用于存储软件程序或数据,处理器11通过运行存储在存储器13的软件程序或数据,从而执行所述UE的各种功能应用以及数据处理。The
在本发明实施例中,收发器12获取到当前系统帧号T以及其他UE在T号帧之前使用的时频资源信息,并将当前系统帧号T以及其他UE在T号帧之前使用的时频资源信息存储在存储器13中,其中,所述时频资源信息包括频域资源位置和时域资源位置,其中,所述时域资源位置由时隙组位置和每一个时隙组内的时隙位置共同决定,T≥0,进而,处理器11根据存储器13中的当前系统帧号T以及其他UE在T号帧之前使用的时频资源信息,确定所述第一UE在0号帧的时频资源信息;处理器11根据存储器13中的当前系统帧号T和所述第一UE在0号帧的频域资源位置,确定所述第一UE在T号帧的频域资源位置;处理器11根据存储器13中的当前系统帧号T和所述第一UE第0号帧的时频资源信息,确定所述第一UE在T号帧的时隙组位置和时隙位置,并确定所述第一UE在T号帧的时域资源位置,这样,在一个N帧的周期内,所述第一UE的时域资源位置与所述第二UE的时域资源位置有N-1次相隔至少3个时隙,所述第二UE为所述其他至少一个UE中的任一个,N为大于1的整数;最终,收发器12使用所述T号帧的频域资源位置和时域资源位置的资源发送所述第一UE的广播消息。In this embodiment of the present invention, the
进一步地,处理器11在根据存储器13中的当前系统帧号T和所述第一UE第0号帧的时频资源信息,确定所述第一UE在T号帧的时隙组位置和时隙位置时,所述处理器11还可以具体用于:以所述当前系统帧号T为参量,对所述第一UE在0号帧的频域资源位置和时域资源位置进行线性变换,以确定所述第一UE在T号帧的时隙组位置;以及将所述第一UE在0号帧的时隙位置确定为所述第一UE在T号帧的时隙位置。Further, the
进一步地,处理器11在以所述当前系统帧号T为参量,对所述第一UE在0号帧的频域资源位置和时域资源位置进行线性变换,以确定所述第一UE在T号帧的时隙组位置时,所述处理器11还可以具体用于:将所述第一UE在0号帧的时隙组位置平移L*T个时隙组后的时域资源位置,确定为所述第一UE在T号帧的时隙组位置,其中,L由所述第一UE在0号帧的时隙位置与所述第一UE在0号帧的频域资源位置共同决定,L为大于等于0的整数。Further, using the current system frame number T as a parameter, the
进一步地,处理器11在根据存储器13中的当前系统帧号T和所述第一UE在0号帧的频域资源位置,确定所述第一UE在T号帧的频域资源位置时,所述处理器11还可以具体用于:将所述第一UE在0号帧的频域资源位置,确定为所述第一UE在T号帧的频域资源位置;或者,将所述第一UE在0号帧的频域资源位置平移c*T个子载波后的频域资源位置,确定为所述第一UE在T号帧的频域资源位置,c为大于0的整数。Further, when the
其中,所述频域资源位置包括m个子载波,所述时域资源位置包括n个时隙组,每一个时隙组中包含3个时隙,其中,n为大于或等于3*m的素数,n>m>0。The frequency domain resource location includes m subcarriers, the time domain resource location includes n time slot groups, and each time slot group includes 3 time slots, where n is a prime number greater than or equal to 3*m , n>m>0.
本发明的实施例提供一种UE,通过将时域资源位置划分为时隙组位置和时隙位置,这样一来,第一UE便可根据在0号帧时的隙组位置和时隙位置,确定第一UE在T号帧的时隙组位置和时隙位置,那么,在一个N帧的周期内,第一UE的时域资源位置与第二UE的时域资源位置有N-1次相隔至少3个时隙,也就是说,在N-1帧中,任意两个使用不同时频资源的UE的时域资源位置都至少间隔3个时隙,由于只有时隙相邻的UE进行广播消息收发时才需要等待时隙间隔,所以本发明中任意两个使用不同时频资源的UE在收发广播消息时,均无需等待预留的时隙间隔就可以进行广播消息的收发操作,解决了现有技术中UE进行跳频时由于预留时隙间隔所造成的通信速度下降以及时频资源浪费的问题。The embodiment of the present invention provides a UE, by dividing the time domain resource position into the slot group position and the time slot position, in this way, the first UE can be based on the slot group position and the time slot position in frame 0. , determine the time slot group position and time slot position of the first UE in frame T, then, in a period of N frames, the time domain resource position of the first UE and the time domain resource position of the second UE have N-1 The times are separated by at least 3 time slots, that is, in the N-1 frame, the time domain resource positions of any two UEs using different time-frequency resources are separated by at least 3 time slots, since only the UEs with adjacent time slots It is only necessary to wait for the time slot interval when sending and receiving broadcast messages. Therefore, when any two UEs using different time-frequency resources in the present invention send and receive broadcast messages, they can send and receive broadcast messages without waiting for the reserved time slot interval. It solves the problems of the decrease of communication speed and the waste of time-frequency resources caused by reserved time slot intervals when the UE performs frequency hopping in the prior art.
实施例四
本发明的实施例提供一种广播消息的传输装置,如图6所示,包括:An embodiment of the present invention provides a device for transmitting broadcast messages, as shown in FIG. 6 , including:
初始资源确定单元21,用于根据当前系统帧号T以及其他至少一个UE在T号帧之前使用的时频资源信息,确定所述第一UE在0号帧的时频资源信息,所述时频资源信息包括频域资源位置和时域资源位置,其中,所述时域资源位置由时隙组位置和时隙组内的时隙位置共同决定,T为大于等于0的整数;The initial resource determination unit 21 is configured to determine the time-frequency resource information of the first UE in frame 0 according to the current system frame number T and the time-frequency resource information used by at least one other UE before frame T. The frequency resource information includes a frequency domain resource location and a time domain resource location, wherein the time domain resource location is jointly determined by the time slot group location and the time slot location in the time slot group, and T is an integer greater than or equal to 0;
频域资源确定单元22,用于根据所述初始资源确定单元21中的所述当前系统帧号T和所述第一UE在0号帧的频域资源位置,确定所述第一UE在T号帧的频域资源位置;A frequency domain resource determination unit 22, configured to determine the first UE at T according to the current system frame number T in the initial resource determination unit 21 and the frequency domain resource position of the first UE in frame 0 The frequency domain resource location of the frame number;
时域资源确定单元23,用于根据所述初始资源确定单元21中的当前系统帧号T和所述第一UE在0号帧的时频资源信息,确定所述第一UE在T号帧的时隙组位置和时隙位置,并确定所述第一UE在T号帧的时域资源位置,其中,在一个N帧的周期内,所述第一UE的时域资源位置与所述第二UE的时域资源位置有N-1次相隔至少3个时隙,所述第二UE为所述其他至少一个UE中的任一个,N为大于1的整数;A time domain resource determination unit 23, configured to determine the first UE in frame T according to the current system frame number T in the initial resource determination unit 21 and the time-frequency resource information of the first UE in frame 0 time slot group position and time slot position, and determine the time domain resource position of the first UE in frame T, wherein, in a period of N frames, the time domain resource position of the first UE is the same as the time domain resource position of the first UE. The time domain resource positions of the second UE are separated by at least 3 time slots N-1 times, the second UE is any one of the other at least one UE, and N is an integer greater than 1;
广播消息传输单元24,用于使用所述频域资源确定单元22和所述时域资源确定单元23中确定的所述T号帧的频域资源位置和时域资源位置的资源发送所述第一UE的广播消息。The broadcast message transmission unit 24 is configured to use the resources of the frequency domain resource position and the time domain resource position of the T frame determined in the frequency domain resource determination unit 22 and the time domain resource determination unit 23 to send the first A UE's broadcast message.
进一步地,如图7所示,所述时域资源确定单元包括时隙组确定单元25和时隙确定单元26,其中,Further, as shown in FIG. 7 , the time domain resource determination unit includes a time slot group determination unit 25 and a time slot determination unit 26, wherein,
所述时隙组确定单元25,用于以所述当前系统帧号T为参量,对所述第一UE在0号帧的频域资源位置和时域资源位置进行线性变换,以确定所述第一UE在T号帧的时隙组位置;The time slot group determination unit 25 is configured to use the current system frame number T as a parameter to linearly transform the frequency domain resource position and the time domain resource position of the first UE in frame 0 to determine the the position of the first UE in the time slot group of frame T;
所述时隙确定单元26,用于将所述第一UE在0号帧的时隙位置确定为所述第一UE在T号帧的时隙位置。The time slot determining unit 26 is configured to determine the time slot position of the first UE in frame 0 as the time slot position of the first UE in frame T.
进一步地,所述时隙组确定单元25,具体用于将所述第一UE在0号帧的时隙组位置平移L*T个时隙组后的时域资源位置,确定为所述第一UE在T号帧的时隙组位置,其中,L由所述第一UE在0号帧的时隙位置与所述第一UE在0号帧的频域资源位置共同决定,L为大于等于0的整数。Further, the time-slot group determination unit 25 is specifically configured to determine the time-domain resource position after the time-slot group position of the first UE in frame 0 is shifted by L*T time-slot groups, as the first UE. A UE's time slot group position in frame T, where L is jointly determined by the time slot position of the first UE in frame 0 and the frequency domain resource position of the first UE in frame 0, and L is greater than An integer equal to 0.
进一步地,所述频域资源确定单元22,具体用于将所述第一UE在0号帧的频域资源位置,确定为所述第一UE在T号帧的频域资源位置;或者,将所述第一UE在0号帧的频域资源位置平移c*T个子载波后的频域资源位置,确定为所述第一UE在T号帧的频域资源位置,c为大于0的整数。Further, the frequency domain resource determining unit 22 is specifically configured to determine the frequency domain resource position of the first UE in frame 0 as the frequency domain resource position of the first UE in frame T; or, Determine the frequency domain resource position of the first UE after shifting the frequency domain resource position of frame 0 by c*T subcarriers, and determine the frequency domain resource position of the first UE in frame T, and c is greater than 0. Integer.
其中,所述频域资源位置包括m个子载波,所述时域资源位置包括n个时隙组,每一个时隙组中包含3个时隙,其中,n为大于或等于3*m的素数,n>m>0。The frequency domain resource location includes m subcarriers, the time domain resource location includes n time slot groups, and each time slot group includes 3 time slots, where n is a prime number greater than or equal to 3*m , n>m>0.
本发明的实施例提供一种广播消息的传输装置,通过将时域资源位置划分为时隙组位置和时隙位置,这样一来,第一UE便可根据在0号帧时的隙组位置和时隙位置,确定第一UE在T号帧的时隙组位置和时隙位置,那么,在一个N帧的周期内,第一UE的时域资源位置与第二UE的时域资源位置有N-1次相隔至少3个时隙,也就是说,在N-1帧中,任意两个使用不同时频资源的UE的时域资源位置都至少间隔3个时隙,由于只有时隙相邻的UE进行广播消息收发时才需要等待时隙间隔,所以本发明中任意两个使用不同时频资源的UE在收发广播消息时,均无需等待预留的时隙间隔就可以进行广播消息的收发操作,解决了现有技术中UE进行跳频时由于预留时隙间隔所造成的通信速度下降以及时频资源浪费的问题。Embodiments of the present invention provide a device for transmitting broadcast messages. By dividing the time-domain resource location into time-slot group locations and time-slot locations, the first UE can and time slot position, determine the time slot group position and time slot position of the first UE in frame T, then, in a period of N frames, the time domain resource position of the first UE and the time domain resource position of the second UE There are N-1 times separated by at least 3 time slots, that is, in the N-1 frame, the time domain resource positions of any two UEs using different time-frequency resources are separated by at least 3 time slots, because there are only time slots. Adjacent UEs only need to wait for the time slot interval when transmitting and receiving broadcast messages. Therefore, when any two UEs using different time-frequency resources in the present invention send and receive broadcast messages, they can broadcast messages without waiting for the reserved time slot interval. The sending and receiving operation of the device solves the problems of the decrease of communication speed and the waste of time-frequency resources caused by the reserved time slot interval when the UE performs frequency hopping in the prior art.
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所述以权利要求的保护范围为准。The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
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