WO2011106946A1 - 一种多载波资源处理方法、装置和系统 - Google Patents
一种多载波资源处理方法、装置和系统 Download PDFInfo
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- WO2011106946A1 WO2011106946A1 PCT/CN2010/072902 CN2010072902W WO2011106946A1 WO 2011106946 A1 WO2011106946 A1 WO 2011106946A1 CN 2010072902 W CN2010072902 W CN 2010072902W WO 2011106946 A1 WO2011106946 A1 WO 2011106946A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
Definitions
- Multi-carrier resource processing method device and system
- the present invention relates to the field of communications, and in particular, to a multicarrier resource processing method, apparatus, and system. Background technique
- Multi-carrier technology is an important technology used in mobile communication systems, and it can be applied to broadband transmission of mobile communication systems.
- some terminals can handle continuous large bandwidth, while some terminals can only handle relatively small bandwidth, and transmit and receive data on different carrier frequencies through carrier frequency switching.
- a multi-carrier resource mapping process refers to a process of mapping a physical resource unit (PRU) into a logical resource unit (LRU).
- PRU physical resource unit
- LRU logical resource unit
- a physical resource unit is usually composed of available subcarriers of a subframe. In some cases, all or part of a guard subcarrier of a subframe may also be used to form a physical resource unit.
- Multi-carrier resources are usually composed of available subcarriers of a subframe.
- GPRU Guard Physical Resource Unit
- GLRUs Guard Logical Resource Units
- Multi-carrier system As shown in Figure 2, multiple carrier frequencies can be continuous or discontinuous. Different types of terminals support different bandwidths, and some users can span multiple bandwidths. The adjacent carriers of adjacent carrier bandwidths are shown in Figure 3. Shown.
- the base station In the communication system, application control signaling is usually required to indicate the allocation method and method of physical resources.
- the base station (ABS) passes the downlink basic allocation information element (DL Basic Assignment IE) and the uplink basic allocation information element (UL).
- Basic Assignment IE indicates to inform the terminal how to allocate downlink and uplink resources, allocate different resources to different users, and Indicates additional information for this assignment.
- the terminal through the content of the base station indication information, learns how the base station allocates uplink and downlink resources (including common resources and/or multi-carrier resources), and performs operations according to the indication of the base station, and the content of the operation includes at least one or a combination of the following:
- the resource sends data and receives data on the downlink resource.
- the DL Basic Assignment IE and the UL Basic Assignment IE belong to one of the advanced MAP channel A-MAP (Advanced MAP) IEs.
- the indication information Resource Index in the DL Basic Assignment IE and the UL Basic Assignment IE may indicate which logical resource units are indicated by these IEs, and the logical resource units may correspond to physical resource units.
- the frame structure of the Wimax 16m system is shown in Figure 4.
- the control channel includes a super frame header (SHF), an A-MAP control channel, and the like.
- the base station In the communication system currently applied by the Wimax 16m system, the base station notifies the resource allocation through the A-MAP channel, and generally binds the multi-carrier resource and the common system resource to a certain user, so that the multi-carrier resource actually solidifies.
- the ground is a supplementary resource for a certain resource. This would make the scheduling and use of many carrier resources inflexible and could result in unnecessary waste of multi-carrier resources.
- the main object of the present invention is to provide a multi-carrier resource processing method and apparatus to improve the flexibility of use of multi-carrier resources.
- Another object of the present invention is to provide a multi-carrier resource processing system to improve the flexibility of use of multi-carrier resources.
- a multi-carrier resource processing method which pre-extends a structure including multi-carrier resource indication information, the method further includes: The multi-carrier resource indication information is set for the multi-carrier resource allocated to the terminal; the terminal determines the multi-carrier resource allocated to itself according to the received multi-carrier resource indication information.
- the process of extending the structure of the multi-carrier resource indication information includes:
- the new control information structure includes: an uplink protection basic allocation information element and a downlink protection basic allocation information element;
- the existing control information structure includes: an uplink basic allocation information element and a downlink basic allocation information element.
- the Guard Resource Index is set in the uplink and downlink protection basic allocation information element, and the process of setting the multi-carrier resource indication information includes:
- the Guard Resource Index is set to 2 bits, and the multi-carrier resource is divided into two parts.
- the first and second bits of the Guard Resource Index are respectively set to indicate whether the two-part multi-carrier resource is bound to the terminal.
- the Guard Resource Index is set in the uplink and downlink basic allocation information elements, and the process of setting the multi-carrier resource indication information includes:
- the guard Resource Index Set the length of the Guard Resource Index to 2 bits, and the multi-carrier resource corresponds to 2 or more physical resource unit PRU resources, and divide the multi-carrier resource into two parts; the first and second bits of the Guard Resource Index Set the value separately to indicate whether it will be more The carrier resource is bound to the terminal together with other common system resources; or
- the resource index in the uplink and downlink basic allocation information elements indicates that the common system resource is not allocated to the terminal, and the Guard Resource Index is set to indicate whether the multi-carrier resource and other common system resources are bound together to the terminal; Or, set the length of the Guard Resource Index to 2 bits, and the multi-carrier resource corresponds to two or more physical resource unit PRU resources, and divide the multi-carrier resource into two parts; the first and second of the Guard Resource Index The bits are individually set to indicate whether the multi-carrier resource is bound to the terminal together with other common system resources.
- a multi-carrier resource processing apparatus comprising: a multi-carrier resource indication unit, configured to pre-extend a structure including multi-carrier resource indication information, and set multi-carrier resource indication information for a multi-carrier resource allocated by the terminal, and then Multi-carrier resource indication information is sent to the terminal.
- the structure maintenance unit is configured to perform maintenance processing including the saving and providing of the extended structure including the multi-carrier resource indication information.
- a multi-carrier resource processing apparatus comprising an indication execution unit, configured to implement communication according to a multi-carrier resource indicated by the received multi-carrier resource indication information.
- the indication execution unit includes a connected multi-carrier resource parsing unit and a multi-carrier resource processing unit;
- the multi-carrier resource analysis unit is configured to receive multi-carrier resource indication information, and parse the Guard Resource Index content that can be indicated as a multi-carrier resource allocated by the terminal, and then send the content to the multi-carrier as an analysis result.
- Resource processing unit ;
- the multi-carrier resource processing unit is configured to implement communication according to the multi-carrier resource indicated by the received parsing result.
- a multi-carrier resource processing system comprising a base station and a terminal, wherein
- the base station is configured to pre-extend the structure including the multi-carrier resource indication information, and set the multi-carrier resource indication information to the terminal for the multi-carrier resource allocated by the terminal;
- the terminal is configured to implement communication according to the multi-carrier resource indicated by the received multi-carrier resource indication information.
- the method, the device and the system of the present invention no longer need to bind the multi-carrier resource and the common system resource to a certain user, thereby ensuring that the multi-carrier resource is not solidified as an incidental resource of a certain resource.
- FIG. 1 is a schematic diagram of a resource mapping manner in the prior art
- FIG. 2 is a schematic diagram of a multi-carrier resource allocation manner in the prior art
- FIG. 3 is a schematic diagram of an adjacent carrier of a neighboring carrier bandwidth in the prior art
- FIG. 4 is a schematic diagram of a frame structure of a prior art Wimax 16m system
- FIG. 5 is a flowchart of a multi-carrier resource processing flow according to the present invention.
- FIG. 6 is a diagram of a multi-carrier resource processing system according to an embodiment of the present invention. detailed description
- the structure including the multi-carrier resource indication information may be pre-expanded, so that after the multi-carrier resource is allocated to the terminal on the network side, the multi-carrier resource indication information may be set for the multi-carrier resource allocated for the terminal and sent to the terminal. In this way, the terminal can implement communication according to the multi-carrier resource indicated by the received multi-carrier resource indication information.
- a structure including multi-carrier resource indication information may be pre-expanded in various ways, such as:
- IEs Two types are added to the existing control information IE (eg A-MAP IE in the Wimax 16m standard): DL Guard Basic Assignment IE and uplink protection basic allocation information element (UL Guard Basic Assignment IE ), used to indicate GLRU.
- the base station indicates whether there is a protection subcarrier by the IE type. (Multi-carrier resource) is bound to a certain resource scheduling use for a terminal. For example, if the IE type is DL/UL Guard Basic Assignment IE, there is a multi-carrier resource allocated to this resource scheduling, if it is DL JL Basic Assignment IE Description no.
- the resource index in the IE content indicates the allocation of common system resources (which may include whether ordinary system resources are used).
- the Guard Resource Index in the IE content indicates how to allocate multi-carrier resources. For example, when the length of the Guard Resource Index is Obit, it indicates that there is no signaling in the IE content.
- the Guard Resource Index only determines whether there are multi-carrier resources according to the IE type; When the length of the Resource Index is 1 bit, it indicates whether there is a multi-carrier resource through the 1-bit Guard Resource Index. When the length of the Guard Resource Index is 2 bits, it indicates that the 2-bit Guard Resource Index indicates the allocation of multi-carrier resources.
- the multi-carrier resource is divided into two parts to indicate whether each of the multi-carrier resources is allocated to the terminal. The terminal determines, according to the first bit of the Guard Resource Index, whether the first part of the multi-carrier resource is allocated to the terminal, and determines whether the second part of the multi-carrier resource is allocated to the terminal according to the second bit of the Guard Resource Index.
- the content of the signaling indicating the allocation of resources (for example, DL Basic Assignment IE and UL Basic Assignment IE in the Wimax 16m system) is added, and the content of the new application is used to indicate the GLRU.
- guard DL Basic Assignment IE When applying the first method described above, two A-MAP IEs can be defined: Guard DL Basic Assignment IE and Guard UL Basic Assignment IE, both dedicated to indicating the allocation of downstream and upstream GLRU resources.
- the content included in the above IE includes at least one of the following: IE type, GLRU resource location indication information corresponding to IE, Guard Resource Index, CRC check digit, and the like.
- the specific structures of the Guard DL Basic Assignment IE and the Guard UL Basic Assignment IE are shown in Tables l.l and 1.2 respectively.
- Bit is bit
- A-MAP IE Type 4 indicates the type of IE
- Bit is bit
- A-MAP IE Type 4 indicates the type of IE
- the CRC check bits are included in the Guard DL Basic Assignment IE and the Guard UL Basic Assignment IE, they can usually be generated by the contents of the IE, and the CRC check bits and the station identifier (Station Identitier, STID) can form a mask.
- the A-MAP IE is an indication that the base station informs the terminal how to operate.
- the base station may set a multi-carrier resource indication information Guard Resource Index for the multi-carrier resource allocated for the terminal, and carry the Guard Resource Index in the corresponding Guard DL Basic Assignment IE and the Guard UL Basic Assignment IE to send to the terminal.
- the terminal After receiving the Guard DL Basic Assignment IE or Guard UL Basic Assignment IE, the terminal can parse the Guard Resource Index contained in the IE and apply the multi-carrier resource indicated by the Guard Resource Index to implement communication.
- the base station can divide the multi-carrier resource into two parts to indicate whether each multi-carrier resource is allocated to the terminal.
- the terminal determines whether the first part of the multi-carrier resource is allocated to the terminal according to the first bit of the Guard Resource Index, and determines whether the second part of the multi-carrier resource is allocated to the terminal according to the second bit of the Guard Resource Index.
- the terminal can apply the multi-carrier resources allocated to itself to implement communication, such as: for receiving downlink data, for transmitting uplink data, and the like.
- the existing Guard Resource Index can be used in the existing signaling ( ⁇ port: DL Basic Assignment IE and UL Basic Assignment IE, etc.).
- DL Basic Assignment IE and UL into the Guard Resource Index The specific structure of the Basic Assignment IE is shown in Table 2.1 and Table 2.2, respectively:
- Resource Index 11 is used to indicate the resource location index used under various bandwidths, here only for non-GLDU resources.
- Guard Resource Index 1 or greater than the number of GLRU resource locations used to indicate the natural bandwidth equal to 2
- the CRC check bits are included in the DL Basic Assignment IE and UL Basic Assignment IE, they can usually be generated by the contents of the IE, and the CRC check bits and station identifiers can form a mask.
- the A-MAP IE is an indication that the base station informs the terminal how to operate.
- the base station may set a multi-carrier resource indication information Guard Resource Index for the multi-carrier resource allocated for the terminal, and carry the Guard Resource Index in the corresponding DL Basic Assignment IE and the UL Basic Assignment IE to send to the terminal.
- the terminal After receiving the DL Basic Assignment IE or the UL Basic Assignment IE, the terminal can parse the Guard Resource Index included in the IE and apply the multi-carrier resource indicated by the Guard Resource Index to implement communication.
- the allocated multi-carrier resources may be used in combination with common system resources indicated by the Resource Index, or may be used separately.
- the terminal can parse the Guard Resource Index included in the IE and apply the multi-carrier resource indicated by the Guard Resource Index to implement communication. For example, the terminal applies the multi-carrier resource indicated by the Guard Resource Index to receive downlink data or send uplink data.
- the base station sets the length of the Guard Resource Index in the DL Basic Assignment IE and the UL Basic Assignment IE to 2 bits, and the GLRU resource corresponds to 2 PRU resources, then the first bit of the Guard Resource Index can be used to indicate whether the GLRU resource 1 and this are The other common system resources of the secondary scheduling are bound to the terminal together, and the second bit of the Guard Resource Index indicates whether the GLRU resource 2 is bound to the terminal together with other common system resources of the scheduling.
- the Guard Resource Index information bit is equal to 1, it indicates that the multi-carrier resource is bound to the terminal together with other common system resources of the scheduling, and when it is equal to 0, there is no multi-carrier resource and other common system resources of the scheduling together. Bind to the terminal for use.
- the first bit of the Guard Resource Index may be used to indicate whether the first two GLRU resources are The other common system resources of the scheduling are bound to the terminal together, and the second bit of the Guard Resource Index indicates whether the two GLRU resources are bound to the terminal together with other common system resources of the scheduling.
- the Guard Resource Index information bit is equal to 1, it indicates that the multi-carrier resource is bound to the terminal together with other common system resources of the scheduling, and when it is equal to 0, there is no multi-carrier resource and other common system resources of the scheduling together. Bind to the terminal for use.
- the GLRU resource can be logically divided into two parts, Use the first bit of the Guard Resource Index to indicate whether the previous part of the GLRU resource is the same as the other scheduled
- the system resources are bound together for use by the terminal, and the second bit of the Guard Resource Index indicates whether a part of the GLRU resources are bound to the terminal together with other common system resources of the scheduling.
- the Guard Resource Index information bit when the Guard Resource Index information bit is equal to 1, it indicates that the multi-carrier resource is bound to the terminal together with other common system resources of the scheduling, and when it is equal to 0, there is no multi-carrier resource and other common system resources of the scheduling together. Bind to the terminal for use.
- the Guard Resource Index must indicate at least one multi-carrier resource to support separate scheduling of multi-carrier resources.
- the Guard Resource Index may also be used to indicate two or more multi-carrier resources as described above. The specific indication method has been described in the foregoing description.
- the multi-carrier resource can be allocated without allocating common resource resources.
- a Resource Index of 2 to 4 bits is required correspondingly to indicate the GLRUs that the terminal can use.
- the above-mentioned setting method for the Guard Resource Index with a value of 1 or 0 is only one of a plurality of setting methods; in fact, it is also possible to apply a flag, a string, and the like in various other ways, as long as the Guard is provided.
- the Resource Index can specify the multi-carrier resources allocated for the terminal and the terminal can successfully implement the communication according to the received Guard Resource Index application corresponding multi-carrier resources.
- FIG. 5 is a flowchart of a multi-carrier resource processing flow according to the present invention, where the process includes the following steps:
- Step 510 Pre-expand the structure including the multi-carrier resource indication information.
- Step 520 Set multi-carrier resource indication information and send the information to the terminal for the multi-carrier resource allocated for the terminal.
- Step 530 The terminal implements communication according to the multi-carrier resource indicated by the received multi-carrier resource indication information.
- FIG. 6 is a diagram of a multi-carrier resource processing system according to an embodiment of the present invention.
- the system includes a connected structure maintenance unit, a multi-carrier resource indication unit, and an indication execution unit.
- the indication execution unit includes a connected multi-carrier resource. Parsing unit, multi-carrier resource processing unit.
- the structure maintenance unit and the multi-carrier resource indicating unit are usually disposed in a network side device such as a base station capable of allocating communication resources to the terminal, and the instruction execution unit is disposed in the terminal.
- the multi-carrier resource indication unit is configured to pre-extend the structure including the multi-carrier resource indication information, and may also send the structure to the structure maintenance unit to perform maintenance processing including saving and providing, when the structure needs to be applied. And may be acquired by the structure maintenance unit; and, after the device to which the multi-carrier resource indicating unit belongs is allocated communication resources for the terminal, the multi-carrier resource indicating unit can be configured for the multi-carrier resource allocated for the terminal, and combined with the pre-expanded
- the structure sets the multi-carrier resource indication information, and then sends the multi-carrier resource indication information to the indication execution unit.
- the multi-carrier resource analysis unit in the instruction execution unit is capable of receiving the multi-carrier resource indication information from the multi-carrier resource indication unit, and parsing the Guard Resource Index content indicating the multi-carrier resource allocated to the terminal, and using the content as the content
- the analysis result is sent to the multi-carrier resource processing unit, and the multi-carrier resource processing unit implements communication according to the multi-carrier resource indicated by the received analysis result.
- each unit may perform a corresponding process of instructing, analyzing, and using non-multi-carrier resources such as common system resources allocated by the network on the network side. And, the specific operations that can be realized by each of the above units The foregoing has been described in detail in the foregoing, and will not be described again here.
- the multi-carrier resource processing method, device, and system of the present invention do not need to bind the multi-carrier resource and the common system resource to a certain user, thereby ensuring that the multi-carrier resource is not cured.
- a resource attached to a resource This makes the scheduling and usage flexibility of multi-carrier resources significantly improved, and can avoid unnecessary waste of multi-carrier resources.
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Description
一种多载波资源处理方法、 装置和系统 技术领域
本发明涉及通信领域， 具体涉及一种多载波（Multicarrier )资源处理方 法、 装置和系统。 背景技术
多载波技术是移动通信系统中所使用的一项重要技术， 其可以应用于 移动通信系统的宽带传输。 对于终端而言， 由于终端处理能力的差异， 有 些终端可以处理连续的大带宽， 而有的终端仅能处理比较小的带宽， 通过 载频切换实现在不同的载频上收发数据。
多载频的资源映射过程是指将物理资源单元（ Physical Resource Unit, PRU )映射为逻辑资源单元（ Logical Resource Unit, LRU )的过程。 如图 1 所示， 物理资源单元通常由子帧的可用子载波构成， 在某些情况下， 子帧 的全部或部分保护子载波也可以用于构成物理资源单元。 多载波资源又称
( Guard Physical Resource Unit, GPRU ) , 物理上的多载波资源映射到逻辑 上则称作保护逻辑资源单元（Guard Logical Resource Unit, GLRU )。 多载 波系统如图 2所示， 多个载频可以是连续或不连续的， 不同类型的终端支 持不同的带宽， 并且有些用户可以跨多带宽， 相邻载波带宽的相邻载波则 如图 3所示。
在通讯系统中通常需要应用控制信令以指示物理资源的分配方式和方 法， 如 Wimax 16m系统中， 基站（ ABS )通过下行基本分配信息元素（ DL Basic Assignment IE )和上行基本分配信息元素 ( UL Basic Assignment IE ) 指示通知终端如何分配下行和上行资源， 将不同资源分配给不同用户， 并
指示该次分配的其他信息。 终端通过基站指示信息中的内容， 获知基站如 何分配上行、 下行资源（包括普通资源和 /或多载波资源）， 并按照基站的指 示进行操作， 操作的内容至少包括以下之一或组合： 用上行资源发送数据 和在下行资源上接收数据。 其中， DL Basic Assignment IE 和 UL Basic Assignment IE属于高级 MAP信道 A-MAP ( Advanced MAP ) IE中的一种。 DL Basic Assignment IE和 UL Basic Assignment IE中的指示信息 Resource Index可以表示这些 IE指示的是哪些逻辑资源单元， 而逻辑资源单元又可 以对应物理资源单元。 Wimax 16m系统的帧结构如图 4所示。
对于通讯系统而言， 如果出现可以使用的多载波资源， 也必须要有一 种方法指示资源的分配方式， 比如分配给哪个用户、 与哪些资源共同使用 等， 指示分配方法的信令一般是在控制信道发送。 在 Wimax 16m通讯系统 中控制信道包括超帧头 （SHF )、 A-MAP控制信道等。
在 Wimax 16m系统等目前所应用的通信系统中， 基站通过 A-MAP信 道通知资源分配情况， 并且一般将多载波资源和普通系统资源一起绑定分 给某个用户， 使得多载波资源实际上固化地作为某一块资源的附带资源。 这样会使得多载波资源的调度和使用缺乏灵活性， 而且可能会造成多载波 资源的无谓浪费。 发明内容
有鉴于此， 本发明的主要目的在于提供一种多载波资源处理方法和装 置， 以提高多载波资源的使用灵活性。
本发明的另一目的在于提供一种多载波资源处理系统， 以提高多载波 资源的使用灵活性。
为达到上述目的， 本发明的技术方案是这样实现的：
一种多载波资源处理方法， 预先扩展包含多载波资源指示信息的结构， 该方法还包括：
针对为终端所分配的多载波资源， 设置多载波资源指示信息； 终端根 据所收到的多载波资源指示信息确定为自身所分配的多载波资源。
所述扩展包含多载波资源指示信息的结构的过程包括：
设置包含多载波资源位置指示信息 Guard Resource Index的新的控制信 息结构； 或者，
在已有的控制信息结构中添加 Guard Resource Index。
所述新的控制信息结构包括： 上行保护基本分配信息元素和下行保护 基本分配信息元素；
所述已有的控制信息结构包括： 上行基本分配信息元素和下行基本分 配信息元素。
所述 Guard Resource Index设置于上行、下行保护基本分配信息元素中， 设置所述多载波资源指示信息的过程包括：
将 Guard Resource Index长度设置为 0 bit或 1 bit, 对 IE类型进行设置 以表示多载波资源是否绑定给终端； 或者，
将 Guard Resource Index长度设置为 2bit, 将多载波资源分为两部分； 对 Guard Resource Index的第一个和第二个比特分别进行取值设置， 以表示 两部分多载波资源是否绑定给终端。
所述 Guard Resource Index设置于上行、 下行基本分配信息元素中， 设 置所述多载波资源指示信息的过程包括：
将 Guard Resource Index的长度设置为 lbit, 对 Guard Resource Index 进行取值设置以表示是否将多载波资源和其他普通系统资源一起绑定给终 端使用； 或者，
将 Guard Resource Index的长度设置为 2bit, 且多载波资源对应了 2个 或 2个以上物理资源单元 PRU资源， 将多载波资源分为两部分； 对 Guard Resource Index的第一个和第二个比特分别进行取值设置， 以表示是否将多
载波资源和其他普通系统资源一起绑定给终端使用； 或者，
所述上行、下行基本分配信息元素中的 Resource Index指示当前没有为 终端分配普通系统资源， 对 Guard Resource Index进行取值设置以表示是否 将多载波资源和其他普通系统资源一起绑定给终端使用； 或者， 将 Guard Resource Index的长度设置为 2bit, 且多载波资源对应了 2个或 2个以上物 理资源单元 PRU资源， 将多载波资源分为两部分； 对 Guard Resource Index 的第一个和第二个比特分别进行取值设置， 以表示是否将多载波资源和其 他普通系统资源一起绑定给终端使用。
一种多载波资源处理装置， 该装置包括多载波资源指示单元， 用于预 先扩展包含多载波资源指示信息的结构， 并针对为终端所分配的多载波资 源设置多载波资源指示信息， 再将该多载波资源指示信息发送给终端。
进一步包括结构维护单元， 用于对扩展的包含多载波资源指示信息的 所述结构进行包括保存、 提供在内的维护处理。
一种多载波资源处理装置， 该装置包括指示执行单元， 用于根据所收 到的多载波资源指示信息所指示的多载波资源实现通信。
所述指示执行单元包括相连的多载波资源解析单元、 多载波资源处理 单元； 其中，
所述多载波资源解析单元， 用于接收多载波资源指示信息， 并从中解 析出能够指示为终端所分配的多载波资源的 Guard Resource Index内容， 再 将该内容作为解析结果发送给所述多载波资源处理单元；
所述多载波资源处理单元， 用于根据收到的解析结果所指示的多载波 资源实现通信。
一种多载波资源处理系统， 该系统包括基站和终端， 其中，
所述基站， 用于预先扩展包含多载波资源指示信息的结构， 并针对为 终端所分配的多载波资源， 设置多载波资源指示信息再发送给终端；
所述终端， 用于根据所收到的多载波资源指示信息所指示的多载波资 源实现通信。
可见， 本发明方法、 装置和系统， 不再需要将多载波资源和普通系统 资源一起绑定分给某个用户， 因而保证多载波资源不被固化地作为某一块 资源的附带资源。 这使得多载波资源的调度和使用灵活性得到明显提高， 而且能够尽量避免多载波资源的无谓浪费。 附图说明
图 1为现有技术的一种资源映射方式示意图；
图 2为现有技术的多载波资源分配方式示意图；
图 3为现有技术的相邻载波带宽的相邻载波示意图；
图 4为现有技术的 Wimax 16m系统的帧结构示意图；
图 5为本发明的多载波资源处理流程筒图；
图 6为本发明一实施例的多载波资源处理系统图。 具体实施方式
在实际应用中， 可以预先扩展包含多载波资源指示信息的结构， 以便 在网络侧为终端分配了多载波资源之后， 可以针对为终端所分配的多载波 资源设置多载波资源指示信息并发送给终端； 这样， 终端就可以根据所收 到的多载波资源指示信息所指示的多载波资源实现通信。
可以应用多种方式预先扩展包含多载波资源指示信息的结构， 如： 第一种方式
在现有的控制信息 IE (如： Wimax 16m标准中的 A-MAP IE ) 的基础 上加入两种 IE 类型： 下行保护基本分配信息元素 （DL Guard Basic Assignment IE )和上行保护基本分配信息元素 ( UL Guard Basic Assignment IE ), 用于指示 GLRU。 一般而言，基站通过 IE类型指示是否有保护子载波
(多载波资源）绑定给针对某终端的某一次资源调度使用， 例如如果 IE类 型是 DL/UL Guard Basic Assignment IE说明有多载波资源分配给了这次资 源调度， 如果是 DL JL Basic Assignment IE说明没有。 用 IE内容中的指示 信息 Resource Index表示普通系统资源的分配情况（可能包括是否使用了普 通系统资源 )。 IE内容中的指示信息 Guard Resource Index指示如何分配多 载波资源， 比如当 Guard Resource Index的长度为 Obit时， 表示 IE内容中 没有信令 Guard Resource Index仅根据 IE类型判断是否有多载波资源； 当 Guard Resource Index的长度为 lbit时, 表示通过 1比特的 Guard Resource Index表示是否有多载波资源； 当 Guard Resource Index的长度为 2bit时， 表示使用 2bit的 Guard Resource Index表示多载波资源的分配情况，基站可 以将多载波资源分为两部分， 分别指示其中每一份多载波资源是否分配给 终端。 终端根据 Guard Resource Index的第一个比特确定第一部分的多载波 资源是否分配给该终端， 根据 Guard Resource Index的第二个比特确定第二 部分的多载波资源是否分配给该终端。
第二种方式
对专门指示资源分配的信令（如： Wimax 16m 系统中的 DL Basic Assignment IE和 UL Basic Assignment IE ) 内容进行添力口, 应用新添力口的信 令内容指示 GLRU。
当应用上述的第一种方式时，可以定义两种 A-MAP IE: Guard DL Basic Assignment IE和 Guard UL Basic Assignment IE, 均专门用于指示下行和上 行 GLRU资源的分配。 上述 IE中包含的内容至少包括以下之一或组合： IE 类型、 IE对应的 GLRU资源位置指示信息 Guard Resource Index, CRC校 验位等。 Guard DL Basic Assignment IE和 Guard UL Basic Assignment IE的 具体结构分别如表 l.l和表 1.2所示：
构造 ( Syntax ) 大 小 描述
( size ), 单
位为 bit
Guard_DL_Basic_Assignment_A-MAP_IE()
{
A-MAP IE Type 4 指示 IE 的类型
Guard Resource Index 1 或大 用于指 于等于 2的 示使用了哪 自然数 些 下 行
GLRU资源 可能的其他内容 可能的 其他内容 表 1.1
构造 ( Syntax ) 大 小 描述
( size ), 单
位为 bit
Guard_UL_Basic_Assignment_A-MAP_IE()
{
A-MAP IE Type 4 指示 IE 的类型
Guard Resource Index 1 或大 用于指 于等于 2的 示使用了哪 自然数 些 上 行
GLRU资源
可能的其他内容 可能的 其他内容 表 1.2
如果 Guard DL Basic Assignment IE和 Guard UL Basic Assignment IE中 包含 CRC校验位， 那么通常可以由 IE中的内容生成， 并且 CRC校验位和 站标志符 （Station Identitier, STID)可形成掩码。
A-MAP IE是基站通知终端如何进行操作的指示。基站可以针对为终端 所分配的多载波资源， 设置多载波资源指示信息 Guard Resource Index; 并 将该 Guard Resource Index携带于相应的 Guard DL Basic Assignment IE和 Guard UL Basic Assignment IE中发送给终端。 当终端收到 Guard DL Basic Assignment IE或 Guard UL Basic Assignment IE后，就能够解析出 IE中所包 含的 Guard Resource Index,并应用该 Guard Resource Index所指示的多载波 资源实现通信。
比: ¾口当终端 4史到的 Guard Resource Index长度为 lbit时， Guard Resource Index = 1表示所有的多载波绑定给了该终端， Guard Resource Index = 0则表 示没有多载波绑定给该终端。
又比如当 Guard Resource Index长度为 2bit时，基站可以将多载波资源 分为两部分， 分别指示其中每一份多载波资源是否分配给终端。 终端根据 Guard Resource Index的第一个比特确定第一部分的多载波资源是否分配给 该终端， 根据 Guard Resource Index的第二个比特确定第二部分的多载波资 源是否分配给该终端。 之后， 终端可以应用分配给自身的多载波资源实现 通信， 如： 用于接收下行数据、 用于发送上行数据等。
当应用上述的第二种方式时， 可以在已有的专门指示资源分配的信令 ( ^口： DL Basic Assignment IE和 UL Basic Assignment IE等) 中力口人 Guard Resource Index。力口入 Guard Resource Index的 DL Basic Assignment IE和 UL
Basic Assignment IE的具体结构分别如表 2.1和表 2.2所示:
Guard Resource Index 1 或大于 用于指示各 等于 2 的自然 种带宽下使用的 数 GLRU资源位置 索引
表 2.2
如果 DL Basic Assignment IE和 UL Basic Assignment IE中包含 CRC校 验位， 那么通常可以由 IE中的内容生成， 并且 CRC校验位和站标志符可 形成掩码。
A-MAP IE是基站通知终端如何进行操作的指示。基站可以针对为终端 所分配的多载波资源， 设置多载波资源指示信息 Guard Resource Index; 并 将该 Guard Resource Index携带于相应的 DL Basic Assignment IE和 UL Basic Assignment IE中发送给终端。 当终端收到 DL Basic Assignment IE或 UL Basic Assignment IE后，就能够解析出 IE中所包含的 Guard Resource Index, 并应用该 Guard Resource Index所指示的多载波资源实现通信。
需要说明的是，所分配的多载波资源可以和 Resource Index所指示的普 通系统资源绑定使用，也可以单独被使用。 当终端收到 DL Basic Assignment IE或 UL Basic Assignment IE后， 就能够解析出 IE 中所包含的 Guard Resource Index,并应用该 Guard Resource Index所指示的多载波资源实现通 信。 如： 终端应用 Guard Resource Index所指示的多载波资源接收下行数据 或发送上行数据。
在 Guard Resource Index针对多载波资源的指示方面， 如果基站设定 DL Basic Assignment IE和 UL Basic Assignment IE中的 Guard Resource Index 的长度为 lbit,当 Guard Resource Index = 1时表示多载波资源和此次调度的 其他普通系统资源一起绑定给终端使用， 当 Guard Resource Index = 0时表 示多载波资源没有和此次调度的其他普通系统资源一起绑定给终端使用。
如果基站设定 DL Basic Assignment IE和 UL Basic Assignment IE中的 Guard Resource Index的长度为 2bit, 且 GLRU资源对应了 2个 PRU资源， 那么可以用 Guard Resource Index的第一位指示 GLRU资源 1是否和此次调 度的其他普通系统资源一起绑定给终端使用， 用 Guard Resource Index的第 二位指示 GLRU资源 2是否和此次调度的其他普通系统资源一起绑定给终 端使用。 相应的， Guard Resource Index信息位等于 1时， 表示多载波资源 和此次调度的其他普通系统资源一起绑定给终端使用， 等于 0 时表示没有 多载波资源和此次调度的其他普通系统资源一起绑定给终端使用。
如果基站设定 DL Basic Assignment IE和 UL Basic Assignment IE中的 Guard Resource Index的长度为 2bit, 且 GLRU资源对应了 4个 PRU资源， 可以用 Guard Resource Index的第一位指示前两个 GLRU资源是否和此次调 度的其他普通系统资源一起绑定给终端使用， 用 Guard Resource Index的第 二位指示后两个 GLRU资源是否和此次调度的其他普通系统资源一起绑定 给终端使用。 相应的， Guard Resource Index信息位等于 1时， 表示多载波 资源和此次调度的其他普通系统资源一起绑定给终端使用， 等于 0 时表示 没有多载波资源和此次调度的其他普通系统资源一起绑定给终端使用。
如果基站设定 DL Basic Assignment IE和 UL Basic Assignment IE中的 Guard Resource Index的长度为 2bit, 且 GLRU资源对应了 3个或大于 3个 PRU 资源， 则可以在逻辑上把 GLRU 资源分成两部分， 可以用 Guard Resource Index的第一位指示前一部分 GLRU资源是否和此次调度的其他普
通系统资源一起绑定给终端使用， 用 Guard Resource Index的第二位指示后 一部分 GLRU资源是否和此次调度的其他普通系统资源一起绑定给终端使 用。 相应的， Guard Resource Index信息位等于 1时， 表示多载波资源和此 次调度的其他普通系统资源一起绑定给终端使用， 等于 0 时表示没有多载 波资源和此次调度的其他普通系统资源一起绑定给终端使用。
如果 DL Basic Assignment IE和 UL Basic Assignment IE中用于指示非多 载波资源的信息 Resource Index 指示当前没有为终端分配普通系统资源 ( ^口： Resource Index指示的资源是没有资源， 或 Resource Index所指示的 内容没有定义）， 那么 Guard Resource Index就必须至少指示一个多载波资 源， 以支持多载波资源的单独调度。 当然， 也可以如上所述应用 Guard Resource Index指示 2个或 2个以上多载波资源， 具体的指示方法已在前述 描述中说明。
可见， 在进行通信资源分配的时候， 根据应用场景需要， 可以不分配 普通资源资源而只分配多载波资源。
另外， 当基站有 2至 4个基于多载波的 GPRU时， 相应需要 2至 4比 特的 Resource Index以指示终端可以使用的 GLRU。
再有， 上述对 Guard Resource Index进行的取值为 1或 0的设置方式， 只是多种设置方式中的一种； 实际上还可以应用标志位、 字符串等其它多 种方式进行设置， 只要 Guard Resource Index能够指明为终端所分配的多载 波资源并且终端能够根据收到的 Guard Resource Index应用相应的多载波资 源顺利实现通信即可。
由以上所述可见， 无论应用上述的第一种方式还是第二种方式， 在进 行多载波资源处理时都可以应用如图 5所示的流程。 参见图 5 , 图 5为本发 明的多载波资源处理流程筒图， 该流程包括以下步骤：
步骤 510: 预先扩展包含多载波资源指示信息的结构。
步骤 520: 针对为终端所分配的多载波资源，设置多载波资源指示信息 并发送给终端。
步骤 530:终端根据所收到的多载波资源指示信息所指示的多载波资源 实现通信。
为了顺利实现上述操作， 可以进行如图 6所示的设置。 参见图 6, 图 6 为本发明一实施例的多载波资源处理系统图， 该系统包括相连的结构维护 单元、 多载波资源指示单元、 指示执行单元； 其中， 指示执行单元包括相 连的多载波资源解析单元、 多载波资源处理单元。 具体而言， 结构维护单 元和多载波资源指示单元通常设置于基站等能够为终端分配通信资源的网 络侧装置中， 指示执行单元则设置于终端中。
在实际应用时， 多载波资源指示单元用于预先扩展包含多载波资源指 示信息的结构， 还可以将该结构发送给结构维护单元进行包括保存、 提供 在内的维护处理， 当需要应用所述结构时还可以由结构维护单元获取； 并 且， 当多载波资源指示单元所属装置为终端分配了通信资源后， 多载波资 源指示单元能够针对为终端所分配的多载波资源， 并结合预先扩展的所述 结构设置多载波资源指示信息， 再将该多载波资源指示信息发送给指示执 行单元。
指示执行单元中的多载波资源解析单元能够接收来自多载波资源指示 单元的多载波资源指示信息， 并从中解析出能够指示为终端所分配的多载 波资源的 Guard Resource Index内容， 再将该内容作为解析结果发送给多载 波资源处理单元， 由多载波资源处理单元根据收到的解析结果所指示的多 载波资源实现通信。
需要说明的是， 上述各单元除了可以针对多载波资源进行处理以外， 还可以对网络侧为终端所分配的普通系统资源等非多载波资源分别进行相 应的指示、 解析、 使用等处理过程。 并且， 上述各单元所能实现的具体操
作已经在前述内容中详细描述， 在此不再赘述。
综上所述可见， 本发明的多载波资源处理方法、 装置和系统， 不再需 要将多载波资源和普通系统资源一起绑定分给某个用户， 因而保证多载波 资源不被固化地作为某一块资源的附带资源。 这使得多载波资源的调度和 使用灵活性得到明显提高， 而且能够尽量避免多载波资源的无谓浪费。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围， 凡在本发明的精神和原则之内所作的任何修改、 等同替换和改进 等， 均应包含在本发明的保护范围之内。
Claims
1、 一种多载波资源处理方法， 其特征在于， 扩展包含多载波资源指示 信息的结构， 该方法还包括：
为终端分配多载波资源时， 携带多载波资源指示信息； 终端根据所收 到的多载波资源指示信息确定为自身所分配的多载波资源。
2、 根据权利要求 1所述的方法， 其特征在于， 所述扩展包含多载波资 源指示信息的结构的过程包括：
设置包含多载波资源位置指示信息 Guard Resource Index的新的控制信 息结构； 或者，
在已有的控制信息结构中添加 Guard Resource Index字段。
3、 根据权利要求 2所述的方法， 其特征在于， 所述新的控制信息结构 还包括： 上行保护基本分配信息元素和下行保护基本分配信息元素；
所述已有的控制信息结构还包括： 上行基本分配信息元素和下行基本 分配信息元素。
4、根据权利要求 3所述的方法，其特征在于，所述 Guard Resource Index 设置于上行、 下行保护基本分配信息元素中； 设置所述多载波资源指示信 息的过程包括：
将 Guard Resource Index长度设置为 0 bit或 1 bit,对 IE类型进行设置， 以表示多载波资源是否绑定给终端； 或者，
将 Guard Resource Index长度设置为 2bit, 将多载波资源分为两部分； 对 Guard Resource Index的第一个和第二个比特分别进行取值设置， 以表示 两部分多载波资源是否绑定给终端。
5、根据权利要求 3所述的方法，其特征在于，所述 Guard Resource Index 设置于上行、 下行基本分配信息元素中， 设置所述多载波资源指示信息的 过程包括： 将 Guard Resource Index的长度设置为 lbit, 对 Guard Resource Index 进行取值设置， 以表示是否将多载波资源和其他普通系统资源一起绑定给 终端使用； 或者，
将 Guard Resource Index的长度设置为 2bit, 且多载波资源对应了 2个 或 2个以上物理资源单元 PRU资源， 将多载波资源分为两部分； 对 Guard Resource Index的第一个和第二个比特分别进行取值设置， 以表示是否将多 载波资源和其他普通系统资源一起绑定给终端使用； 或者，
所述上行、 下行基本分配信息元素中的 Guard Resource Index指示当前 没有为终端分配普通系统资源， 对 Guard Resource Index进行取值设置， 以 表示是否将多载波资源和其他普通系统资源一起绑定给终端使用； 或者， 将 Guard Resource Index的长度设置为 2bit, 且多载波资源对应了 2个或 2 个以上物理资源单元 PRU 资源， 将多载波资源分为两部分； 对 Guard Resource Index的第一个和第二个比特分别进行取值设置， 以表示是否将多 载波资源和其他普通系统资源一起绑定给终端使用。
6、 一种多载波资源处理装置， 其特征在于， 该装置包括多载波资源指 示单元， 用于扩展包含多载波资源指示信息的结构， 并将多载波资源指示 信息发送给终端。
7、 根据权利要求 6所述的装置， 其特征在于， 进一步包括结构维护单 元， 用于对扩展的包含多载波资源指示信息的所述结构， 进行包括保存、 提供在内的维护处理。
8、一种多载波资源处理装置，其特征在于，该装置包括指示执行单元， 用于才艮据所收到的多载波资源指示信息所指示的多载波资源实现通信。
9、 根据权利要求 8所述的装置， 其特征在于， 所述指示执行单元包括 相连的多载波资源解析单元、 多载波资源处理单元； 其中，
所述多载波资源解析单元， 用于接收多载波资源指示信息， 并从中解 析出能够指示为终端所分配的多载波资源的 Guard Resource Index内容， 再 将该内容作为解析结果发送给所述多载波资源处理单元；
所述多载波资源处理单元， 用于根据收到的解析结果所指示的多载波 资源实现通信。
10、 一种多载波资源处理系统， 其特征在于， 该系统包括基站和终端， 其中，
所述基站， 用于扩展包含多载波资源指示信息的结构， 并将多载波资 源指示信息发送给终端；
所述终端， 用于根据所收到的多载波资源指示信息所指示的多载波资 源实现通信。
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