CN105451237B - A method for allocating wireless resources - Google Patents
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Abstract
Description
技术领域technical field
本发明涉及通信技术领域,尤其涉及无线通信技术领域。The present invention relates to the technical field of communication, in particular to the technical field of wireless communication.
背景技术Background technique
在无线通信领域,一般而言,传统的部署方式是系统工作在授权频段(licensedband),即整个频谱资源都是预留给该系统使用的。典型的,LTE通信系统就是使用授权频段工作的。In the field of wireless communication, generally speaking, the traditional deployment method is that the system works in a licensed frequency band (licensed band), that is, the entire spectrum resource is reserved for the system to use. Typically, the LTE communication system works using licensed frequency bands.
然而,随着无线业务的进一步增长,对无线通信系统的容量及频段要求也随之提高。在这种情况下,LTE系统的授权频段资源显得相对不足起来。因此,在LTE领域最近的研究热点之一就是如何利用非授权频段的资源来分流高发的数据业务。这一种方案称之为部属于非授权载波的LTE(LTE in Unlicensed spectrum简称LTE-U)系统However, with the further growth of wireless services, the requirements for the capacity and frequency band of the wireless communication system are also increased. In this case, the licensed frequency band resources of the LTE system appear to be relatively insufficient. Therefore, one of the recent research hotspots in the LTE field is how to use unlicensed frequency band resources to offload high-incidence data services. This kind of scheme is called LTE (LTE in Unlicensed spectrum referred to as LTE-U) system belonging to the unlicensed carrier
例如一个典型的场景下,LTE系统使用WiFi系统的频段。即LTE系统的小区和WiFi系统的小区在地理位置上至少部分共存的情况。在这种情况下,如果LTE系统可以在某些高负载的时刻使用WiFi的频段进行业务分流,显然可以大大提高系统的性能,从而有效地应对高负载应用场景。关于这种场景下LTE系统与WiFi系统如何共存的研究已经在业内被广泛地讨论过。For example, in a typical scenario, the LTE system uses the frequency band of the WiFi system. That is, a situation where a cell of the LTE system and a cell of the WiFi system coexist at least partially geographically. In this case, if the LTE system can use the WiFi frequency band for business offloading at certain high-load moments, it can obviously greatly improve the system performance, thus effectively coping with high-load application scenarios. Research on how the LTE system and the WiFi system coexist in this scenario has been widely discussed in the industry.
然而,还有一种典型的LTE-U应用场景,即多个不同的LTE系统在某个非授权载波上共存的情况,典型的,即多个LTE运营商共享某个非授权载波波段的情况,关于如何处理多个不同的LTE系统共存的场景,则还有许多未确定的问题。However, there is another typical LTE-U application scenario, that is, the situation where multiple different LTE systems coexist on an unlicensed carrier, typically, that is, the situation where multiple LTE operators share a certain unlicensed carrier band, There are still many unresolved issues about how to deal with the coexistence scenario of multiple different LTE systems.
显而易见,在多个不同的LTE系统共存的情况下,最首要必须解决的问题就是如何合理的进行无线资源分配。与前述的LTE与WiFi共存的情况不同,多个LTE系统共存场景下由其独特的一些要求。例如,多个LTE系统共存下可能存在大量的语音业务,因此对资源的连续性要求高,而带宽要求低;又比如,LTE系统采用的是集中式的资源分配调度,因此只有基站具有资源分配的功能。这些特征使得现有的LTE与WiFi共存模式下,基于信道感知的分布式资源分配方式不能很好的解决多个LTE系统共存下的资源分配问题,因此必须寻找一些新的途径。Obviously, when multiple different LTE systems coexist, the most important problem that must be solved is how to allocate radio resources reasonably. Different from the aforementioned coexistence of LTE and WiFi, the coexistence of multiple LTE systems has some unique requirements. For example, there may be a large number of voice services under the coexistence of multiple LTE systems, so the requirements for resource continuity are high, but the bandwidth requirements are low; for another example, the LTE system uses centralized resource allocation and scheduling, so only the base station has resource allocation. function. These characteristics make it impossible to solve the problem of resource allocation under the coexistence of multiple LTE systems by the distributed resource allocation method based on channel awareness in the existing coexistence mode of LTE and WiFi, so some new approaches must be found.
所以本发明的目标就是寻找一种新的无线资源分配方法;这种方法需要能够使得在多个LTE系统共存的LTE-U场景下可以有效的分配无线资源满足各个运营商的需求;又要确保各个基站能独立的进行资源分配的集中控制;还要尽可能的兼容现有的规范,避免对现有协议的改动过大。Therefore, the object of the present invention is to find a new wireless resource allocation method; this method needs to be able to effectively allocate wireless resources to meet the needs of each operator under the LTE-U scenario where multiple LTE systems coexist; Each base station can independently perform centralized control of resource allocation; it must also be compatible with existing specifications as much as possible to avoid excessive changes to existing protocols.
发明内容Contents of the invention
为解决现有技术中的上述问题,本发明提出一种新的无线资源分配方法。通过为将整个非授权载波频带的资源块划分成不同的子集并分配给不同的运营商,从而确保各个运营商都能获得足够且不相冲突的无线资源。In order to solve the above problems in the prior art, the present invention proposes a new radio resource allocation method. By dividing the resource blocks of the entire unlicensed carrier frequency band into different subsets and allocating them to different operators, it is ensured that each operator can obtain sufficient and non-conflicting wireless resources.
具体地,根据本发明的第一方面,提出了一种在LTE通信系统的第一基站中为用户设备分配资源的方法,其中,所述资源属于非授权载波,所述方法包括:所述第一基站为所述用户设备分配第一数量的物理资源块,其中,所述第一数量的物理资源块为所述非授权载波的物理资源块的子集;所述第一基站发送第一消息,所述第一消息包括指示所述第一数量的物理资源块的信息。Specifically, according to the first aspect of the present invention, a method for allocating resources for user equipment in a first base station of an LTE communication system is proposed, wherein the resources belong to unlicensed carriers, and the method includes: the first A base station allocates a first number of physical resource blocks to the user equipment, where the first number of physical resource blocks is a subset of the physical resource blocks of the unlicensed carrier; the first base station sends a first message , the first message includes information indicating the first number of physical resource blocks.
优选地,还包括,将所述非授权载波的物理资源块划分成多个图案,每个所述图案表示所述非授权载波的物理资源块的一个子集;所述第一基站为所述用户设备分配第一数量的物理资源块包括为所述用户设备分配所述多个图案中的一个图案;所述指示所述第一数量的物理资源块的信息包括指示分配给所述用户设备的所述一个图案的信息。Preferably, it also includes dividing the physical resource blocks of the unlicensed carrier into multiple patterns, each of which represents a subset of the physical resource blocks of the unlicensed carrier; the first base station is the Allocating the first number of physical resource blocks to the user equipment includes allocating one of the multiple patterns to the user equipment; the information indicating the first number of physical resource blocks includes indicating the number of physical resource blocks allocated to the user equipment Information about the one pattern.
更优选地,所述第一消息还包括指示所述资源分配持续时间的信息。。More preferably, the first message further includes information indicating the resource allocation duration. .
更优选地,所述第一消息包括第一序列,所述第一序列同时指示所述分配给所述用户设备的所述一个图案的信息和所述资源分配持续时间的信息。More preferably, the first message includes a first sequence, and the first sequence simultaneously indicates the information of the one pattern allocated to the user equipment and the information of the resource allocation duration.
更优选地,所述第一基站发送第一消息包括所述第一基站在预先确定的标志信道上广播所述第一消息。More preferably, the sending the first message by the first base station includes broadcasting the first message by the first base station on a predetermined flag channel.
更优选地,所述预先确定的标志信道由预先确定的所述非授权载波上的时、频域资源组成。More preferably, the predetermined marker channel is composed of predetermined time and frequency domain resources on the unlicensed carrier.
更优选地,所述第一基站发送第一消息包括所述第一基站将所述第一消息发送给至少一个第二基站,所述第一基站和所述第二基站分别属于不同的运营商。More preferably, the first base station sending the first message includes the first base station sending the first message to at least one second base station, and the first base station and the second base station respectively belong to different operators .
根据本发明的第二方面,提出了一种在LTE通信系统的第二基站中为用户设备分配资源的方法,其中,所述资源属于非授权载波,所述方法包括:According to a second aspect of the present invention, a method for allocating resources for user equipment in a second base station of an LTE communication system is proposed, wherein the resources belong to unlicensed carriers, and the method includes:
所述第二基站接收从至少一个第一基站发送的第一消息,所述第一消息包括指示第一数量的物理资源块的信息,所述第一数量的物理资源块为所述非授权载波的物理资源块的子集,其中,所述第一基站和所述第二基站分别属于不同的运营商;所述第二基站为所述用户设备分配第二数量的物理资源块,其中,所述第二数量的物理资源块为所述非授权载波的物理资源块的子集且与所述第一数量个物理资源块不相交;所述第二基站发送第二消息,所述第二消息包括指示所述第二数量的物理资源块的信息。The second base station receives a first message sent from at least one first base station, the first message includes information indicating a first number of physical resource blocks, the first number of physical resource blocks being the unlicensed carrier A subset of physical resource blocks, wherein the first base station and the second base station belong to different operators; the second base station allocates a second number of physical resource blocks to the user equipment, wherein the The second number of physical resource blocks is a subset of the physical resource blocks of the unlicensed carrier and is disjoint with the first number of physical resource blocks; the second base station sends a second message, and the second message Information indicating the second number of physical resource blocks is included.
优选地,还包括,将所述非授权载波的物理资源块划分成多个图案,每个所述图案表示所述非授权载波的物理资源块的一个子集;所述第二基站为所述用户设备分配第二数量的物理资源块包括为所述用户设备分配所述多个图案中的一个与所述第一数量个物理资源块所对应的图案不相交的图案;所述指示所述第二数量的物理资源块的信息包括指示分配给所述用户设备的所述一个不相交的图案的信息。Preferably, it also includes dividing the physical resource blocks of the unlicensed carrier into multiple patterns, each of which represents a subset of the physical resource blocks of the unlicensed carrier; the second base station is the Allocating the second number of physical resource blocks to the user equipment includes allocating one of the plurality of patterns to the user equipment that is disjoint with the pattern corresponding to the first number of physical resource blocks; the indicating the second The information of the two numbers of physical resource blocks includes information indicating the one disjoint pattern allocated to the user equipment.
更优选地,所述第二消息还包括指示所述资源分配持续时间的信息。More preferably, the second message further includes information indicating the resource allocation duration.
更优选地,所述第二消息包括第二序列,所述第二序列同时指示所述分配给所述用户设备的所述一个不相交的图案的信息和所述资源分配持续时间的信息。More preferably, the second message includes a second sequence, the second sequence simultaneously indicates the information of the one disjoint pattern allocated to the user equipment and the information of the resource allocation duration.
优选地,所述第二基站发送第二消息包括所述第二基站在预先确定的标志信道上广播所述第二消息。Preferably, the sending the second message by the second base station includes broadcasting the second message by the second base station on a predetermined flag channel.
更优选地,所述预先确定的标志信道由预先确定的所述非授权载波上的时、频域资源组成。More preferably, the predetermined marker channel is composed of predetermined time and frequency domain resources on the unlicensed carrier.
优选地,所述第二基站发送第二消息包括所述第二基站将所述第二消息发送给至少一个所述第一基站。Preferably, the second base station sending the second message includes the second base station sending the second message to at least one of the first base stations.
优选地,所述第二基站接收从至少一个第一基站发送的第一消息包括所述第二基站在预先确定的标志信道上接收所述第一消息,所述预先确定的标志信道由预先确定的所述非授权载波上的时、频域资源组成。。Preferably, the second base station receiving the first message sent from at least one first base station comprises the second base station receiving the first message on a predetermined flag channel, and the predetermined flag channel is determined by a predetermined composed of time and frequency domain resources on the unlicensed carrier. .
根据本发明的第三方面,提出了一种在LTE通信系统的第二基站中为用户设备分配资源的方法,其中,所述资源属于非授权载波,所述方法包括:所述第二基站接收从所述用户设备发送的第三消息,所述第三消息包括指示第一数量的物理资源块的信息,所述第一数量的物理资源块为所述非授权载波的物理资源块的子集;所述第二基站为所述用户设备分配第二数量的物理资源块,其中,所述第二数量的物理资源块为所述非授权载波的物理资源块的子集且与所述第一数量个物理资源块不相交;所述第二基站发送第二消息,所述第二消息包括指示所述第二数量的物理资源块的信息。According to a third aspect of the present invention, a method for allocating resources for user equipment in a second base station of an LTE communication system is proposed, wherein the resources belong to unlicensed carriers, and the method includes: the second base station receiving a third message sent from the user equipment, the third message including information indicating a first number of physical resource blocks, the first number of physical resource blocks being a subset of the physical resource blocks of the unlicensed carrier ; The second base station allocates a second number of physical resource blocks to the user equipment, wherein the second number of physical resource blocks is a subset of the physical resource blocks of the unlicensed carrier and is the same as the first The number of physical resource blocks is disjoint; the second base station sends a second message, the second message includes information indicating the second number of physical resource blocks.
根据本发明的第四方面,提出了一种在LTE通信系统的第二基站的用户设备中辅助分配资源的方法,其中,所述资源属于非授权载波,所述方法包括:所述用户设备接收从至少一个第一基站发送的第一消息,所述第一消息包括指示第一数量的物理资源块的信息,所述第一数量的物理资源块为所述非授权载波的物理资源块的子集,其中,所述第一基站和所述第二基站分别属于不同的运营商;所述用户设备向所述第二基站发送第三消息,所述第三消息包括指示所述第一数量的物理资源块的信息。According to a fourth aspect of the present invention, a method for assisting resource allocation in a user equipment of a second base station in an LTE communication system is proposed, wherein the resource belongs to an unlicensed carrier, and the method includes: the user equipment receiving A first message sent from at least one first base station, the first message including information indicating a first number of physical resource blocks that are subsections of physical resource blocks of the unlicensed carrier set, wherein the first base station and the second base station respectively belong to different operators; the user equipment sends a third message to the second base station, and the third message includes the Information about physical resource blocks.
优选地,所述用户设备接收从至少一个第一基站发送的第一消息包括所述用户设备在预先确定的标志信道上接收所述第一消息,所述预先确定的标志信道由预先确定的所述非授权载波上的时、频域资源组成。Preferably, the user equipment receiving the first message sent from at least one first base station includes the user equipment receiving the first message on a predetermined flag channel, and the predetermined flag channel is determined by the predetermined Composition of time and frequency domain resources on the unlicensed carrier.
根据本发明的第五方面,提出了一种在LTE通信系统的基站中为用户设备分配资源的设备,其中,所述资源属于非授权载波,所述设备包括:接收模块,用于所述基站接收包括指示第一数量的物理资源块的信息的消息,所述第一数量的物理资源块为所述非授权载波的物理资源块的子集;分配模块,用于所述基站为所述用户设备分配第二数量的物理资源块,其中,所述第二数量的物理资源块为所述非授权载波的物理资源块的子集且与所述第一数量个物理资源块不相交;发送模块,用于所述基站发送第二消息,所述第二消息包括指示所述第二数量的物理资源块的信息。According to a fifth aspect of the present invention, a device for allocating resources for user equipment in a base station of an LTE communication system is proposed, wherein the resource belongs to an unlicensed carrier, and the device includes: a receiving module for the base station Receive a message including information indicating a first number of physical resource blocks, the first number of physical resource blocks being a subset of the physical resource blocks of the unlicensed carrier; an allocation module, configured for the base station to provide the user The device allocates a second number of physical resource blocks, where the second number of physical resource blocks is a subset of the physical resource blocks of the unlicensed carrier and is disjoint with the first number of physical resource blocks; the sending module is used for the base station to send a second message, where the second message includes information indicating the second number of physical resource blocks.
根据本发明的第六方面,提出了一种一种在LTE通信系统的第二基站的用户设备中辅助分配资源的设备,其中,所述资源属于非授权载波,所述设备包括:接收模块,用于所述用户设备接收从至少一个第一基站发送的第一消息,所述第一消息包括指示第一数量的物理资源块的信息,所述第一数量的物理资源块为所述非授权载波的物理资源决的子集,其中,所述第一基站和所述第二基站分别属于不同的运营商;发送模块,用于所述用户设备向所述第二基站发送第三消息,所述第三消息包括指示所述第一数量的物理资源块的信息。According to a sixth aspect of the present invention, a device for assisting resource allocation in a user equipment of a second base station of an LTE communication system is proposed, wherein the resource belongs to an unlicensed carrier, and the device includes: a receiving module, Used for the user equipment to receive a first message sent from at least one first base station, where the first message includes information indicating a first number of physical resource blocks, and the first number of physical resource blocks are the unlicensed A subset of physical resource blocks of a carrier, where the first base station and the second base station belong to different operators; a sending module, configured for the user equipment to send a third message to the second base station, the The third message includes information indicating the first number of physical resource blocks.
本发明中,通过将整个非授权载波频带的资源块划分成不同的子集进行分配,从而确保各个运营商都能获得适合的无线资源;通过由基站发送资源分配信息,确保了不同运营商之间的资源分配不会冲突;通过由基站根据已有的资源分配信息进行进一步的资源分配,保持了LTE系统的集中式资源分配机制;同时只需引入少量的信令,从而最大程度的与现有的规范保持兼容性。In the present invention, by dividing the resource blocks of the entire unlicensed carrier frequency band into different subsets for allocation, it is ensured that each operator can obtain suitable wireless resources; by sending resource allocation information by the base station, it is ensured that different operators The resource allocation of the LTE system will not conflict; by further resource allocation by the base station according to the existing resource allocation information, the centralized resource allocation mechanism of the LTE system is maintained; at the same time, only a small amount of signaling needs to be introduced, so as to maximize the compatibility with the existing specifications to maintain compatibility.
附图说明Description of drawings
通过参照附图阅读以下所作的对非限制性实施例的详细描述,本发明的其它特征、目的和优势将会更为明显。Other characteristics, objects and advantages of the present invention will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings.
图1示出了根据本发明的一种PRB图案划分的示意图;FIG. 1 shows a schematic diagram of a PRB pattern division according to the present invention;
图2示出了根据本发明的一种在LTE通信系统中分配无线资源的方法的流程图;Fig. 2 shows a flow chart of a method for allocating radio resources in an LTE communication system according to the present invention;
图3示出了根据本发明的另一种在LTE通信系统中分配无线资源的方法的流程图;FIG. 3 shows a flowchart of another method for allocating radio resources in an LTE communication system according to the present invention;
图4示出了根据本发明的另一种在LTE通信系统中分配无线资源的方法的流程图;FIG. 4 shows a flow chart of another method for allocating radio resources in an LTE communication system according to the present invention;
图5示出了根据本发明的一种在LTE通信系统中辅助分配无线资源的方法的流程图;FIG. 5 shows a flowchart of a method for assisting in allocating radio resources in an LTE communication system according to the present invention;
图6示出了根据本发明的一种在LTE通信系统中分配无线资源的设备的框图;FIG. 6 shows a block diagram of a device for allocating radio resources in an LTE communication system according to the present invention;
图7示出了根据本发明的一种在LTE通信系统中辅助分配无线资源的设备的框图。Fig. 7 shows a block diagram of a device for assisting in allocating radio resources in an LTE communication system according to the present invention.
其中,相同或相似的附图标记表示相同或相似的步骤特征或装置/模块。Wherein, the same or similar reference numerals represent the same or similar steps, features or devices/modules.
具体实施方式Detailed ways
在以下优选的实施例的具体描述中,将参考构成本发明一部分的所附的附图。所附的附图通过示例的方式示出了能够实现本发明的特定的实施例。示例的实施例并不旨在穷尽根据本发明的所有实施例。可以理解,在不偏离本发明的范围的前提下,可以利用其他实施例,也可以进行结构性或者逻辑性的修改。因此,以下的具体描述并非限制性的,且本发明的范围由所附的权利要求所限定。In the following detailed description of the preferred embodiment, reference is made to the accompanying drawings which form a part hereof. The accompanying drawings show, by way of example, specific embodiments in which the invention can be practiced. The illustrated embodiments are not intended to be exhaustive of all embodiments in accordance with the invention. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. Accordingly, the following detailed description is not limiting, and the scope of the invention is defined by the appended claims.
首先,根据本发明的应用场景,存在一个LTE通信系统覆盖的区域,在该区域中,可以同时包括多于一个运营商的基站和UE。此外在该区域内还存在其他的非授权载波。而当上述多个运营商的基站都想在该非授权载波上进行无线资源分配时,由于这些属于不同运营商的基站之间缺少协作机制,因此可能导致资源分配的冲突。为此,本发明提出了将该非授权的物理资源块(Physical resource block简称PRB)划分成不同的子集,每个运营商的基站根据业务的需求,选择相应的子集分配给各自的UE,从而有效的避免了发生冲突的情况。First, according to the application scenario of the present invention, there is an area covered by an LTE communication system, and in this area, base stations and UEs of more than one operator may be included at the same time. In addition, there are other unlicensed carriers in this area. However, when base stations of multiple operators above all want to allocate radio resources on the unlicensed carrier, resource allocation conflicts may occur due to the lack of a coordination mechanism among base stations belonging to different operators. For this reason, the present invention proposes to divide the unlicensed physical resource block (Physical resource block (PRB) for short) into different subsets, and each operator's base station selects a corresponding subset to allocate to each UE according to the service requirements , thereby effectively avoiding conflicts.
在此基础上,根据本发明的一个实施例,提出了一种在LTE通信系统的第一基站中为UE分配非授权载波资源的方法。具体的:On this basis, according to an embodiment of the present invention, a method for allocating unlicensed carrier resources for a UE in a first base station of an LTE communication system is proposed. specific:
首先为该UE分配第一数量的PRB,其中,该第一数量的PRB为该非授权载波的PRB的子集;这样的目的是既确保为UE提供时域上连续的资源已满足语音类业务的需求,同时又保留部分频域资源可供其它的运营商使用。First, allocate the first number of PRBs to the UE, where the first number of PRBs is a subset of the PRBs of the unlicensed carrier; the purpose of this is to ensure that the UE is provided with continuous resources in the time domain to meet the needs of voice services requirements, while reserving some frequency domain resources for use by other operators.
第二步,该第一基站发送第一消息用于指示上述已分配的第一数量的PRB的信息;该第一消息的作用是确保其他运营商的基站再次进行资源分配时不会选择这部分PRB,从而避免了冲突的产生。In the second step, the first base station sends a first message to indicate the information of the first number of PRBs that have been allocated; the function of the first message is to ensure that base stations of other operators will not select this part when they allocate resources again PRB, thus avoiding conflicts.
上文中的第一消息可以使用各种可能的方式来指示第一数量的PRB,例如可以是位图(bitmap)的方式来指示。而优选的,为了减少信令开销,可以预先将整个非授权载波的PRB划分成多个不同的图案(pattern),如附图1所示。每个pattern表示一个PRB子集,而第一基站在进行资源分配时,即从上述pattern中选择一个分配给UE;相对应的,在上述第一消息中,只需指示已被选择的是哪一个pattern即可,从而减少了需要发送的信息。The first message above may use various possible ways to indicate the first number of PRBs, for example, it may be indicated in a bitmap (bitmap) way. Preferably, in order to reduce signaling overhead, PRBs of the entire unlicensed carrier may be divided into multiple different patterns in advance, as shown in FIG. 1 . Each pattern represents a PRB subset, and the first base station selects one of the above patterns to allocate to the UE when performing resource allocation; correspondingly, in the above first message, it only needs to indicate which has been selected Only one pattern is enough, which reduces the information that needs to be sent.
进一步的,在第一消息中,还可以发送指示该次资源分配方案的持续时间的信息,该信息可以供其它基站在进行后续的资源分配时加以考虑。Further, in the first message, information indicating the duration of the sub-resource allocation scheme may also be sent, and the information may be considered by other base stations when performing subsequent resource allocation.
作为优选的,本发明提出上述第一消息中可以包括第一序列,该第一序列的作用是同时指示出上述pattern分配和持续时间的信息,这样,只需发送一个序列就可以同时传送出这两个信息。具体的,可以用如下公式来根据该第一序列的取值得到这些信息:As a preference, the present invention proposes that the above-mentioned first message may include a first sequence, and the function of the first sequence is to indicate the above-mentioned pattern allocation and duration information at the same time, so that only one sequence is required to transmit the information at the same time. Two messages. Specifically, the following formula can be used to obtain the information according to the value of the first sequence:
其中,Isequence表示本次第一序列的取值,Ipattern表示本次分配的pattern;Tpattern表示本次分配的持续时间;Npattern表示pattern的总个数,Nroot表示该第一序列取值的总个数。表示向下取整运算。Among them, I sequence indicates the value of the first sequence this time, I pattern indicates the pattern allocated this time; T pattern indicates the duration of this allocation; N pattern indicates the total number of patterns, and N root indicates the first sequence takes total number of values. Indicates the rounding down operation.
进一步的,第一基站可以在一个预先确定的标志信道(flag channel)上广播该第一消息;采用广播方式发送的优点是第一基站可以无需知道是否还有其他运营商的基站与其共存。具体的,该flag channel由预先确定的该非授权载波上的时、频域资源组成,例如可以约定总是使用该非授权载波频段的中间部分的PRB作为flag channel或者总是使用该非授权载波频段的边缘部分的PRB作为flag channel。具体采用何种广播方式不影响本发明的效果,例如,可以是周期性广播也可以是持续的广播,对不同的运营商还可以定义不同的flag channel等等,都属于本发明保护的范围。Further, the first base station may broadcast the first message on a predetermined flag channel (flag channel); the advantage of sending the first message in a broadcast manner is that the first base station does not need to know whether there are base stations of other operators coexisting with it. Specifically, the flag channel is composed of pre-determined time and frequency domain resources on the unlicensed carrier, for example, it can be agreed to always use the PRB in the middle part of the unlicensed carrier frequency band as the flag channel or always use the unlicensed carrier PRBs at the edge of the frequency band are used as flag channels. The specific broadcasting method does not affect the effect of the present invention. For example, it can be periodic broadcasting or continuous broadcasting, and different flag channels can be defined for different operators, etc., all of which belong to the protection scope of the present invention.
作为另一种选择,第一基站也可以通过空中接口直接将该第一消息发送到至少一个属于不同运营商的第二基站。这种方式要求第一基站首先获知第二基站存在的相关信息,优点是发送的针对性更高、更准确。Alternatively, the first base station may also directly send the first message to at least one second base station belonging to a different operator through an air interface. This method requires the first base station to first obtain relevant information about the existence of the second base station, and the advantage is that the transmission is more targeted and accurate.
附图2示出了根据上述实施例进行资源分配的流程图,包括:Accompanying drawing 2 shows the flowchart of resource allocation according to the above-mentioned embodiment, including:
S21.所述第一基站为所述用户设备分配第一数量的物理资源块,其中,所述第一数量的物理资源块为所述非授权载波的物理资源块的子集;S21. The first base station allocates a first number of physical resource blocks to the user equipment, where the first number of physical resource blocks is a subset of the physical resource blocks of the unlicensed carrier;
S22.所述第一基站发送第一消息,所述第一消息包括指示所述第一数量的物理资源块的信息。S22. The first base station sends a first message, where the first message includes information indicating the first number of physical resource blocks.
根据本发明的另一个实施例,提出了一种在LTE通信系统的第二基站中为UE分配非授权载波资源的方法。具体的:According to another embodiment of the present invention, a method for allocating unlicensed carrier resources for a UE in a second base station of an LTE communication system is proposed. specific:
该第二基站首先接收从至少一个第一基站发送的第一消息,该第一消息包括指示第一数量的PRB的信息,而该第一数量的PRB为所述非授权载波的PRB的子集,其中,第一基站和第二基站分别属于不同的运营商;也就是第二基站首先接收第一基站已分配的PRB的信息;The second base station first receives a first message sent from at least one first base station, the first message includes information indicating a first number of PRBs, and the first number of PRBs is a subset of PRBs of the unlicensed carrier , wherein, the first base station and the second base station respectively belong to different operators; that is, the second base station first receives the information of the PRB allocated by the first base station;
第二步,该第二基站为UE分配第二数量的PRB,而该第二数量的PRB也是上述非授权载波的PRB的子集且与第一数量个PRB不相交;也就是第二基站从剩下的PRB中选择一个子集分配给UEIn the second step, the second base station allocates a second number of PRBs to the UE, and the second number of PRBs is also a subset of the PRBs of the above-mentioned unlicensed carrier and is disjoint with the first number of PRBs; Select a subset of the remaining PRBs to allocate to the UE
第三步,该第二基站发送第二消息,该第二消息用于指示该第二数量的PRB的信息;同样的,该第二消息是供后续的资源分配时使用。In the third step, the second base station sends a second message, where the second message is used to indicate the information of the second number of PRBs; similarly, the second message is used for subsequent resource allocation.
与前一个实施例类似的,进一步的,可以是以pattern形式来进行PRB的划分。这时,第二基站所接收的第一消息中就包括已被选择的pattern的信息,而第二基站分配资源时,就需要从剩下的pattern中选择一个与已被选择的pattern不相交的pattern。同样,发送的第二消息中也包括指示这一不相交的pattern的信息。Similar to the previous embodiment, further, the division of PRBs may be performed in the form of a pattern. At this time, the first message received by the second base station includes the information of the selected pattern, and when the second base station allocates resources, it needs to select a disjoint pattern from the remaining patterns. pattern. Likewise, the information indicating this disjoint pattern is also included in the sent second message.
同样的,第二消息中可以包括持续时间的信息;可以用一个第二序列同时表示pattern和持续时间;可以通过flag channel广播第二消息;也可以直接发送第二消息到第一基站。以上都与前一个实施例类似,不再赘述。Similarly, the second message may include duration information; a second sequence may be used to represent both the pattern and the duration; the second message may be broadcast through a flag channel; or the second message may be directly sent to the first base station. All of the above are similar to the previous embodiment and will not be repeated here.
而第二基站接收第一消息时也可以是从flag channel上接收。When the second base station receives the first message, it may also receive it from a flag channel.
附图3示出了根据上述实施例进行资源分配的流程图,包括:Accompanying drawing 3 shows the flowchart of resource allocation according to the above-mentioned embodiment, including:
S31.所述第二基站接收从至少一个第一基站发送的第一消息;S31. The second base station receives a first message sent from at least one first base station;
S32.所述第二基站为所述用户设备分配第二数量的物理资源块;S32. The second base station allocates a second number of physical resource blocks to the user equipment;
S33.所述第二基站发送第二消息。S33. The second base station sends a second message.
根据本发明的另一个实施例,提出了一种在LTE通信系统的第二基站中为UE分配非授权载波资源的方法。该实施例与第二个实施例的区别在于,第二基站不是通过接收从第一基站发送的第一消息,来获知已分配的资源的信息,而是接收的从UE发送的第三消息来获知。即flag channel的接收不是由第二基站来完成的。具体的:According to another embodiment of the present invention, a method for allocating unlicensed carrier resources for a UE in a second base station of an LTE communication system is proposed. The difference between this embodiment and the second embodiment is that the second base station does not learn the information of the allocated resources by receiving the first message sent from the first base station, but receives the third message sent from the UE informed. That is, the reception of the flag channel is not completed by the second base station. specific:
该第二基站接收从UE发送的第三消息,所述第三消息包括指示第一数量的PRB的信息,所述第一数量的PRB为所述非授权载波的PRB的子集;The second base station receives a third message sent from the UE, where the third message includes information indicating a first number of PRBs, where the first number of PRBs is a subset of PRBs of the unlicensed carrier;
第二步,该第二基站为UE分配第二数量的PRB,而该第二数量的PRB也是上述非授权载波的PRB的子集且与第一数量个PRB不相交;也就是第二基站从剩下的PRB中选择一个子集分配给UEIn the second step, the second base station allocates a second number of PRBs to the UE, and the second number of PRBs is also a subset of the PRBs of the above-mentioned unlicensed carrier and is disjoint with the first number of PRBs; Select a subset of the remaining PRBs to allocate to the UE
第三步,该第二基站发送第二消息,该第二消息用于指示该第二数量的PRB的信息;同样的,该第二消息是供后续的资源分配时使用。In the third step, the second base station sends a second message, where the second message is used to indicate the information of the second number of PRBs; similarly, the second message is used for subsequent resource allocation.
附图4示出了根据上述实施例进行资源分配的流程图,包括:Accompanying drawing 4 shows the flowchart of resource allocation according to the above-mentioned embodiment, including:
S41.所述第二基站接收从UE发送的第三消息;S41. The second base station receives a third message sent from the UE;
S42.所述第二基站为所述用户设备分配第二数量的物理资源块;S42. The second base station allocates a second number of physical resource blocks to the user equipment;
S43.所述第二基站发送第二消息。S43. The second base station sends a second message.
根据本发明的另一个实施例,提出了一种在LTE通信系统的第二基站的UE中辅助分配资源的方法。即由第二基站的UE来接收flag channel,然后通知第二基站已分配的资源的信息。具体的:According to another embodiment of the present invention, a method for assisting resource allocation in a UE of a second base station in an LTE communication system is proposed. That is, the UE of the second base station receives the flag channel, and then notifies the second base station of the allocated resource information. specific:
该UE首先接收从至少一个第一基站发送的第一消息,该第一消息包括指示第一数量的PRB的信息,而该第一数量的PRB为该非授权载波的PRB的子集,其中,第一基站和第二基站分别属于不同的运营商;The UE first receives a first message sent from at least one first base station, where the first message includes information indicating a first number of PRBs, and the first number of PRBs is a subset of PRBs of the unlicensed carrier, where, The first base station and the second base station respectively belong to different operators;
然后,该UE向第二基站发送第三消息,该第三消息包括指示第一数量的PRB的信息。Then, the UE sends a third message to the second base station, where the third message includes information indicating the first number of PRBs.
进一步的,UE是在由预先确定的该非授权载波上的时、频域资源组成的flagchannel上接收第一消息的。Further, the UE receives the first message on a flagchannel composed of predetermined time and frequency domain resources on the unlicensed carrier.
附图5示出了根据上述实施例辅助资源分配的流程图,包括:Accompanying drawing 5 shows the flowchart of assisting resource allocation according to the above-mentioned embodiment, including:
S51.所述UE接收从第一基站发送的第一消息;S51. The UE receives the first message sent from the first base station;
S52.所述UE向第二基站发送第三消息。S52. The UE sends a third message to the second base station.
以下再来结合附图介绍本发明所提供的与上述方法相对应的设备,鉴于其中的单元/装置特征与上述方法中的步骤特征有对应关系,将从简。The equipment corresponding to the above-mentioned method provided by the present invention will be described below in conjunction with the accompanying drawings. In view of the corresponding relationship between the unit/device features and the step features in the above-mentioned method, it will be simplified.
附图6示出了根据本发明的一种在LTE通信系统的基站中为用户设备分配资源的设备60,其中,所述资源属于非授权载波,所述设备包括:Figure 6 shows a device 60 for allocating resources for user equipment in a base station of an LTE communication system according to the present invention, wherein the resource belongs to an unlicensed carrier, and the device includes:
接收模块6001,用于所述基站接收包括指示第一数量的物理资源块的信息的消息,所述第一数量的物理资源块为所述非授权载波的物理资源块的子集;A receiving module 6001, configured for the base station to receive a message including information indicating a first number of physical resource blocks, where the first number of physical resource blocks is a subset of the physical resource blocks of the unlicensed carrier;
分配模块6002,用于所述基站为所述用户设备分配第二数量的物理资源块,其中,所述第二数量的物理资源块为所述非授权载波的物理资源块的子集且与所述第一数量个物理资源块不相交;An allocation module 6002, configured for the base station to allocate a second number of physical resource blocks to the user equipment, where the second number of physical resource blocks is a subset of the physical resource blocks of the unlicensed carrier and is identical to the The first number of physical resource blocks are disjoint;
发送模块6003,用于所述基站发送第二消息,所述第二消息包括指示所述第二数量的物理资源块的信息。The sending module 6003 is configured for the base station to send a second message, where the second message includes information indicating the second number of physical resource blocks.
附图7示出了根据本发明的一种在LTE通信系统的第二基站的用户设备中辅助分配资源的设备70,其中,所述资源属于非授权载波,所述设备包括:Figure 7 shows a device 70 for assisting resource allocation in a user equipment of a second base station of an LTE communication system according to the present invention, wherein the resource belongs to an unlicensed carrier, and the device includes:
接收模块7001,用于所述用户设备接收从至少一个第一基站发送的第一消息,所述第一消息包括指示第一数量的物理资源块的信息,所述第一数量的物理资源块为所述非授权载波的物理资源块的子集,其中,所述第一基站和所述第二基站分别属于不同的运营商;A receiving module 7001, configured for the user equipment to receive a first message sent from at least one first base station, where the first message includes information indicating a first number of physical resource blocks, and the first number of physical resource blocks is a subset of physical resource blocks of the unlicensed carrier, wherein the first base station and the second base station belong to different operators;
发送模块7002,用于所述用户设备向所述第二基站发送第三消息,所述第三消息包括指示所述第一数量的物理资源块的信息。A sending module 7002, configured for the user equipment to send a third message to the second base station, where the third message includes information indicating the first number of physical resource blocks.
以上对本发明的实施例进行了描述,但是本发明并不局限于特定的系统、设备和具体协议,本领域内技术人员可以在所附权利要求的范围内做出各种变形或修改。The embodiments of the present invention have been described above, but the present invention is not limited to specific systems, devices and specific protocols, and those skilled in the art can make various changes or modifications within the scope of the appended claims.
那些本技术领域的一般技术人员可以通过研究说明书、公开的内容及附图和所附的权利要求书,理解和实施对披露的实施方式的其他改变。在权利要求中,措词“包括”不排除其他的元素和步骤,并且措辞“一个”不排除复数。在本发明中,“第一”、“第二”仅表示名称,不代表次序关系。在发明的实际应用中,一个零件可能执行权利要求中所引用的多个技术特征的功能。权利要求中的任何附图标记不应理解为对范围的限制。Other changes to the disclosed embodiments can be understood and effected by those of ordinary skill in the art by studying the specification, disclosure, drawings and appended claims. In the claims, the word "comprising" does not exclude other elements and steps, and the word "a" does not exclude a plurality. In the present invention, "first" and "second" only represent names, and do not represent a sequence relationship. In the actual application of the invention, one component may perform the functions of multiple technical features cited in the claims. Any reference signs in the claims should not be construed as limiting the scope.
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| CN102111256A (en) * | 2011-02-21 | 2011-06-29 | 电信科学技术研究院 | Method for transmitting resource indication information and device using same |
| CN102857930A (en) * | 2011-06-30 | 2013-01-02 | 国际商业机器公司 | Frequency sharing method and device of wireless communication system based on orthogonal frequency division multiplexing (OFDM) |
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| CN102474749A (en) * | 2009-09-18 | 2012-05-23 | 上海贝尔股份有限公司 | Resources scheduling method for spectrum sharing system and base station |
| CN102111256A (en) * | 2011-02-21 | 2011-06-29 | 电信科学技术研究院 | Method for transmitting resource indication information and device using same |
| CN102857930A (en) * | 2011-06-30 | 2013-01-02 | 国际商业机器公司 | Frequency sharing method and device of wireless communication system based on orthogonal frequency division multiplexing (OFDM) |
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