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    • 专利摘要:
    COMMUNICATION SYSTEM AND MANAGEMENT METHOD OF THE SAMEThe modalities of the present invention provide a communication system and a method of managing it. The communication system includes: a radio transceiver layer, where the radio transceiver node combination, where the radio transceiver node combination includes at least one type of the following: a macrocell RRU, in RRU of picocell and a picocell BRU; a local computing layer, including a local computing node, connected to a radio transceiver node in one or multiple neighboring radio transceiver combinations and configured to perform all communication processing or a first part of communication processing of a cell corresponding to a radio transceiver node combination connected to the local computing node; a centralized computing layer, including a centralized computing node, connected to the computing node, where all communication processing includes the first part and the second part of communication processing. The local computing layer provided in the modalities of the present invention is responsible for all communication processing or for a part of communication processing, and all processing does not need to be transferred to a remote computing center, which saves bandwidth and improves the use of system resources.
    公开号:BR112013029651A2
    申请号:R112013029651-8
    申请日:2011-05-17
    公开日:2020-11-10
    发明作者:Sheng Liu；Hong Cheng
    申请人:Huawei Tchnologies Co., Ltd.；
    IPC主号:
    专利说明:

    F k COMMUNICATION SYSTEM AND MANAGEMENT METHOD OF THE SAME <
    FIELD OF THE INVENTION The present invention relates to the field of radio communications and, in particular, to a communication system and a method thereof.
    BACKGROUND OF THE INVENTION A cellular communication system includes three parts, specifically, a user equipment (user equipment, UE), a radio access network (radio access network 10, RAN), and a core network {network nucleus, CN).
    The UE is a communication tool for network users, the RAN is responsible for the management of air interface resources and a part of management of rrioiability, and the CN is responsible for user authentication, 15 billing, mobility management, establishment carrier and maintenance, and data routing.
    The RAN before LTE (long-term evolution, long-term evolution) includes a base station and a base station controller. For a GSM (global sisterhood for mobile '20 communications, global system for mobile communications) / GPRS (general packet radio service, general packet radio service), RAN consists of a BS (base station, base station) and a BSC (base station controller, base station controller). For a UMTS (universal mobile telecommunications system 25, universal mobile telecorrect system), the RAN consists of a NODE B and an RNC (radio network controller, radio receiver controller). The base station communicates with the UE via an air interface, and the base station controller performs unified management and multiple programming.
    G base stations. LTE adopts a flat network architecture. THE
    W RAN has only one network element, that is, an eNode B, which includes the functions of previous NODE B. The functions of the base station controller are also distributed to 5 cacia and Node B.
    Since 3G (3 "generation, 3" generation) distributed base stations have been widely applied, a distributed base station divides a conventional base station into a base band unit (base band unit, BBU) and a remote base unit. radio (remote radio unit, RRU). RRU implements operations such as radio signal reception and transmission, reduction of peak to average power ratio, digital pre-distortion, upward conversion, DAC (digital to analog conversion, digital to analog conversion) / ADC (conversion analog to digital, analog to digital conversion), and power amplification, and exchange baseband information with BBU through a common public radio interface protocol (common public radio interface, CPRI). At present, the physical connections between BBU and RRU mainly adopt fibers. BBU + RRU mode makes local employment more flexible. The RRU is smaller in size and easy to use in locations such as an electric pole, and occupies a smaller space.
    Generally, inside a large-scale building, there are floors between the layers, there are walls in rooms, and there are space divisions between users of the internal environment.
    According to a BBU + RRU multiple channel solution, an RRU is employed for each space divided by the use of these resources. For a large stage with a floor area of more than 100,000 square meters, the grandstand. it can be divided into several cells, and each cell has several channels, with each channel corresponding to a RRU equipped with a panel antenna. The BBU is a larger size 5, and can be positioned independently in an engine room.
    The mobile communication network generally uses a cellular structure, that is, different base stations are employed in different locations, and each base station forms a cell and is responsible for the communication of mobile users in the cell. To ensure that mobile users can achieve seamless communication, neighboring cells have certain overlapping areas, so that mobile users can transfer from point to point from one cell to another cell. In this conventional single-layer cell system, to increase the capacity of the system, the capacity of each cell needs to be increased, which is usually implemented by using complex and costly technologies. However, in a larger area, not all places need very high capacity. In most cases, only a 'portion of active areas needs high capacity; for other areas with lower traffic requirements, even if 'high capacity is provided, no user will use the capacity, which is a waste of system resources. That is, it is an inefficient way to increase the capacity of the entire cell. Therefore, a better way is to adopt a multilayer cell structure (heterogeneous network in the 3GPP LTE standard, and HetNet to summarize). That is, a macrocell (macrocell) is used for. implement a seamless coverage of the area, and then a picocell (peak or femto) is used in active areas to perform the cover overlay. The picocell provides a high capacity according to higher traffic requirements 5 in active areas, so that the capacity of the system can be allocated according to the real need. From a system perspective, this way is a more accurate and purposeful way of providing capacity, and this avoids wasting system resources. Currently, HetNet is considered as an important technical means to increase the capacity of the system at LTE.
    Most users are distributed in industrial areas during working hours, while most users are distributed in residential areas during other hours. With this tidal effect from users, the computing resources of the base station cannot be fully utilized. The purpose of proposing the architecture of a Cloud-RAN (C-RAN, cloud RAN) is to use the computing resources of the base station in a more efficient way.
    The C-RAN centralizes BBUSs of base stations distributed in an area for the formation of a BBU resource group.
    The baseband signals from RRUs in this area are processed in the same BBU group (ie, a BBU resource group).
    In this way, the mobility of users in this area does not affect the use of computing resources.
    Centralized BBUSs can be connected to RRUs in a larger area using fibers. Whether a bandwidth. and delays in interconnection times between BBUS allow, BBUs in the area can also be interconnected for
    0 P forming a BBU resource group.
    F Because the BBU resource group processes multiple cell signals in a centralized manner, C-RAN can also facilitate joint transmission between 5 multiple cells.
    However, in a conventional cloud-RAN architecture, an area and cell corresponds to only one BBU resource group, and all RRUs need to be connected to the BBU resource group via fibers. Because the physical distance is long and all baseband signals must be sent to the BBU resource group for processing, the requirements for fiber transmission capacities are very high.
    In a HetNet scenario, if all picocells 15 need to be connected to a remote BBU group via fibers, a large number of picocells can double the fiber disposal costs and volumes of data to be processed by the BBU group.
    Compared to the conventional C-RAN architecture, 20 the present invention has the following advantage: the bandwidth for the connection between the base station and the cloud computing node is greatly saved. In future communication networks, the number of picocells is several times the number of macrocells; the frequency band 25 becomes increasingly wider; and the number of antennas is increased dramatically from four to several dozen and even more than a hundred. If conventional cloud-RAN architecture is still used, it will be a major challenge for fiber transmission to connect all baseband data 30 to the cloud computing center several kilometers away.
    and ¶
    SUMMARY OF THE INVENTION - The modalities of the present invention provide a communication system and a method of managing it to save data transmission bandwidth between 5 base stations and improve resource utilization.
    In one aspect, a communication system is provided, which includes: a radio transceiver layer, including one or multiple radio transceiver node combinations, wherein a radio transceiver node at each radio transceiver node combination includes at least one type of the following: a macrocell radio unit, a remote picocell radio unit, and a base band and picocell radio unit; a local computing layer, including one or multiple local computing nodes, where each local computing node is connected to the radio transceiver nodes in one or multiple neighboring radio transceiver combinations and configured to perform all of the communication processing or a first communication processing part of a cell corresponding to a combination of a radio transceiver node connected to the local computing node; and a centralized computing layer, including one or more centralized computing nodes, where each centralized computing node is connected to one or multiple local computing nodes in the local computing layer, and configured to perform a second processing part communication cell in a cell corresponding to a radio transceiver node combination connected to one or multiple local switching nodes, if the opposite flow bandwidth performs the first part of the communication processing, in which all the communication processing includes the first part of communication processing and the second part of communication processing.
    5 In another aspect, a method for managing a communication system is provided, in which the communication system includes a radio transceiver layer, a local computing layer and a centralized computing layer. The radio transceiver layer includes one or multiple combinations of radio transceiver knots, wherein a radio transceiver node in each radio transceiver combination includes at least one type of the following: a microcell radio unit, a remote picocell radio unit, and a base band and picocell radio unit. The local computing layer includes one or multiple local computing nodes, where each local computing node is connected to the radio transceiver nodes in one or multiple radio transceiver combinations. The centralized computing layer includes one or multiple centralized computing nodes, where each centralized computing node is connected to one or multiple local computing nodes in the local computing layer. The method includes: the execution, by the local computation node, of the entire processing or of a first communication processing part of a cell corresponding to a radio transcription node in a radio transcription node connection connected to the radio node. local computing; and the execution, by the centralized computing node, of a second part of a cell's correspondence processing corresponding to a radio transceiver node in a combination of radio transceiver node connected to one or multiple local computing nodes, if the local computing node performs the first communication processing part, wherein all communication processing includes the first communication processing part and the second communication processing part.
    In embodiments of the present invention, a local computing layer is added between the computing layer. '10 local and the radio transcription layer and is responsible for all or part of the communication processing of neighboring cells in a certain range. In this way, all processing does not need to be performed by a remote computing center, which saves network bandwidth and improves the use of system resources.
    BRIEF DESCRIPTION OF THE DRAWINGS To clarify the technical solutions of modalities of the present invention, the associated drawings for illustrating the modalities of the present invention are briefly described below. Of course, the associated designs are just examples, and people of skill in the art can derive other designs from those associated designs without creative efforts.
    Figure i is a schematic diagram of an urr network architecture. communication system according to 'a modality of' the present invention; figure 2 is a schematic diagram of a network architecture of a communication system according to another embodiment of the present invention; 30 figures 3A to 3B are a schematic diagram of a
    - data processing procedure according to one embodiment of the present invention; figure 4 is a schematic diagram of a typical example of a HetNet network architecture according to a modality of the present invention; figure 5 is a schematic flow chart of a method for managing a communication system according to one of the present invention; and figure 6 is a schematic flow chart of a method for managing a communication system according to another embodiment of the present invention.
    DETAILED DESCRIPTION OF THE MODALITIES The technical solutions of modalities of the present invention are described from this point clearly and completely with reference to the associated drawings.
    Of course, the modalities are only exemplary modalities of the present invention and the present invention is not limited to those modalities. All other modalities that persons of ordinary skill in the art obtain on the basis of modalities of the present invention, without creative efforts, also fall within the scope of the present invention.
    In embodiments of the present invention, the BBU cclmDutation features are divided by layer, so that the centralization of BBUS located in a small area is combined with the centralization of BBUS of globalized area in a large area. A radio transceiver node, for example, a microcell cell radio unit, a picocell RRU or a picocell BRU (baseband and radio unit, baseband and radio unit) is not just connected to a computing node local but also connected
    F a to a large upper layer computing node through the local computing node. The picocell BRU may have a RRU radio processing function and certain communication processing functions (e.g., a baseband data compression, and a baseband and upper layer communication protocol processing. ). Therefore, a communication system provided in a modality of the present invention supports adaptive programming in computing resources and joint processing between the local computing node and the centralized computing node, according to the user distribution, the volume of data and interference.
    It should be noted that, in embodiments of the present invention, when two network elements are "chorused" directly, it indicates that the two elements are connected only through a connection medium (for example, an air interface, a fiber, a line digital signal, a microwave link, or an electric power cable) or are connected directly without any means of connection.
    When two elements are "connected", it indicates that the two network elements can be connected directly or connected 'indirectly through one or multiple intermediate network elements. All those forms of connection fall within the scope of the present invention.
    Figure 1 is a schematic diagram of a network architecture of a communication system according to a modality of the present invention. In figure 1, simply to illustrate the system architecture provided in this embodiment of the present invention, only one network element of each type of network element is described, but q 0 is not limited in this embodiment of the present invention. The number of each type of network element can be increased, reduced, or deleted according to the needs, and all these modifications must fall within the scope of the present invention.
    As shown in Figure 1, a radio transceiver layer 110 is located at the bottom layer of the RAN architecture and performs a radio signal transmission with user equipment through an air interface. The radio transceiver layer 110 includes one or multiple combinations of radio transceiver 115. A radio transceiver node in a radio transceiver combination 115 includes at least one type of the following: a macro cell radio unit 116, a remote picocell radio unit (RRU) 117 and a picocell cell radio and base band unit (BRU) 118. Radio transceiver nodes 116 to 118 perform at least base station radio processing functions. For example, for an LTE network, radio processing functions include baseband data framing / non-framing (eg CPRI framing / non-framing), reduction of peak power to media ratio, digital pre-distortion, up / down conversion, ADC / DAC (analog to digital / digital to analog conversion), power amplification and duplexer.
    Figure I illustrates only a combination of radio transceiver 115, whereas the radio transceiver layer provided in this embodiment of the present invention can include multiple radio transceiver node combinations
    Ç q
    115. The radio transceiver node 115 combination shown in Figure 1 includes three radio transceiver nodes 116 to 118, but each radio transceiver node combination 115 provided in this embodiment of the present invention 5 may include one, two or all three radio transceiver nodes 116 to 118, and the number of any type of radio transceiver nodes 116 to 118 can be greater than one.
    For a brief description, the term "radio transceiver nodes 116 to 118" is used to indicate radio transceiver nodes included in any of the radio transceiver node 115 combinations and may include one or multiple types of transceiver nodes radio 116 to 118, and the number of each type of radio transceiver node can be one or more than one.
    A local computing layer 120 is located above the radio transcription layer 110 and the layer includes one or multiple local computing nodes 125. Local computing layer 120 is a computing layer directly connected to the radio transceiving nodes 116 to i18. Each local computing node 125 is connected to radio transceiver nodes 116 to 118 in a neighboring radio transceiver node combination 115 or multiple radio transceiver combinations 115, and is configured to perform all data processing. communication or a first communication processing part of a cell corresponding to the radio transceiver node combination connected to the local computer node 125. The cell corresponding to the radio transceiver node combination · 115 refers to a cell served by us radio transceiver 116 to 118 in the transceiver node combination
    13, '64 q I radio 115. The distance between the local computing layer 120 and the radio transceiver layer 110 is usually in a short range, for example, erasing a macrocell. In the case of continuous picocell coverage without 5 macrocell coverage, local computing node 125 can be connected to multiple picocell BRUS / RRUS in a small area with continuous coverage.
    Figure 1 shows only the case where a local computing node 125 is connected to the radio transceiver nodes 116 to 118 in a combination of radio transceiver 115. However, local computing node 125 provided in this mode of The present invention can be connected to radio transceiver nodes 116 to 118 in one or multiple combinations of radio transceiver 115. The number of radio transceiver nodes in a combination of radio transceiver nodes connected to the local computing node. and the number of connected radio transceiver node combinations can be determined according to the network settings.
    The centralized computing layer 140 is located on the top layer of the system architecture and the layer includes one or multiple centralized computing nodes 145. A centralized computing node 145 is connected to a load controller 25 in a larger area, for example. For example, it is connected to the local computing node 125 corresponding to "multiple macrocells. The centralized computing layer 140 is generally distant from the local computing layer 120. A centralized computing node 145 is connected to one or multiple local computing nodes 125 of the compute layer, site 120 and is configured for iU '1 14/64 0 q perform a second communication processing part of a cell corresponding to the radio transceiver node combination 115 connected to a urri or multiple local computation nodes 125, if the local computing node 125 5 performs the first communication processing part, where the entire communication process includes the first communication part communication essential and the second part of communication processing.
    In one embodiment, the first communication processing part and the second communication processing part can be performed at the same time. In another embodiment, the first part of the communication processing and the second part of the communication processing can be performed at different times, which is not limited to the modalities of the present invention.
    Figure 1 shows only one centralized computing node 145, but the centralized computing layer 140 provided in this embodiment of the present invention can include multiple centralized computing nodes 145. Centralized computing nodes 145 can be interconnected.
    In this embodiment of the present invention, a local computing layer is added between the centralized computing layer and the radio transceiver layer, and is responsible for all or part of the communication processing of neighboring cells within a certain range. In this way, all c) processing does not need to be carried out by a centralized computing node, which saves network bandwidth and improves the use of system resources.
    qe 15/64 k k To further save bandwidth, one or multiple intermediate computer layers can be added between the centralized computing layer and the local computing layer. Figure 2 is a schematic diagram 5 of a network architecture of a communication system according to another embodiment of the present invention. In figure 2, the parts that are the same as those in figure 1 are represented by the same reference numbers.
    As shown in figure 2, an intermediate computing layer 130 can be added between the local computing layer 120 and the centralized computing layer 140. Although only one intermediate computing layer 130 is shown in figure 2, multiple intermediate computing layers can be added. included in this embodiment of the present invention. A first 3Cl communication gateway consists of intermediate computing nodes 135, where each intermediate computing node 135 is configured to perform all communication processing or a third part of a cell's corresponding communication process corresponding to transceiver nodes. radio (for example, the radio transceiver nodes 116 to 118 included in 115-2 shown in figure 2) in a radio transceiver combination connected to a local computing node {eg 125-2 in the figure 2) connected to the intermediate computing node 135. Except for the first part of the communication processing (performed by the local computing node 125) and the second part of the communication processing (performed by the computing node
    * q centralized 145), all communication processing still includes the third part of communication processing.
    In one way, the third communication processing part 5, the first communication processing part and the second communication processing part can be performed at the same time. In another embodiment, the third communication processing part, the first communication processing part and the second communication processing part can be performed at different times, which is not limited in the modalities of the present invention.
    As shown in figure 2, centralized computing nodes 145 can be connected to radio transceiver nodes i16 through 118 in the radio transceiver combination 115 in several ways. For example, a centralized computing node 145-1 is directly connected to a local computing node 125-1, and local computing node 125-1 is directly connected to radio transceiver nodes 116 to 118 and erodes a node combination radio transceiver 115-1.
    Or Çl centralized computing node 145-1 'is connected to a local computing node 125-2 through a layer or multiple layers of intermediate computing nodes 135, and the local computing node 125-2 is directly connected.
    to radio transceiver nodes 116 to 118 in the radio transceiver node combination 115-2.
    However, the radio transceiver nodes 116 to 118 in the network architecture provided in this mode of the present invention are first connected to the local computing node q 4 125, and then connected to the centralized computing node 145 through the load controller 25, In this embodiment of the present invention, a way similar to that in conventional C-RAN can still be used, that is, the centralized computation node 145 is directly connected to the radio transceiver nodes 116 to 118. As shown in figure 2, the centralized computing node 145-2 can be directly connected to the radio transceiver nodes 16 through 118 in the radio transceiver 115-3 combination. For example, if the picocell RRU / BRU is located on the edge between two macrocells, picocell users will usually need to perform joint processing with multiple base micro-stations from the perspective of resource programming and interference management.
    In this case, the picocell RRU / BRU can be connected directly to the centralized computing node.
    In particular, for the BRU 118, the base microstation side has some baseband processing functions, which is equivalent to the fact that the base microstation is connected to a colocalized computing micron. BRU 118 can perform a fourth part of the communication processing of a cell corresponding to BRU. In addition, as shown in Figure 2, centralized computing nodes 145 can be interconnected. In this case, centralized computing nodes 145 can transfer, via task scheduling, a fifth part of communication processing to other centralized computing nCs for execution. All communication processing still includes the fourth part of communication processing and / or the fifth part of communication processing.
    In one embodiment, the fifth part of the communication processing, the fourth part of the communication processing, the third part of the communication processing, the first part of the communication processing and the second part of the communication processing can be performed at the same time . In another way, the fifth part of communication processing, the fourth part of communication processing, the third part of communication processing, the first part of communication processing and the second part of communication processing can be performed at different times , which is not limited in embodiments of the present invention.
    The following describes the interface between each network element provided in this embodiment of the present invention. As shown in figure 2, the 'connections between a macrocell radio unit 116 and a local computing node 125-1 / 125-2, between a RRU of picocell 117 and a local computing node 125-1 / 125-2 , between a macrocell radio unit 116 and a centralized computing node 145-2 and between a picocell RRU 117 and a centralized cornputation node 145-2 are implemented through a class 1 Cl interface. The Class 1 Cl interface is configured for the transmission of baseband data and control state messages, for example, providing synchronization and corresponding control management functions. The Class 1 Cl interface can be implemented by using current protocols, such as CRPI, between the BBU and RRU of a "distributed base station.
    * a The connections between a picocell BRU 118 and c) local computing node 125-1 / 125-2, between local computing node 125-1 and the centralized computing node .145-1, between the local computing node 125-2 and the interrediate computing node 5 135, between the intermediary computing nodes 135 in the upper and lower layers, between q intermediate computing node 135 and the centralized computing node 145-1, between the centralized computing nodes 145- 1 and 145-2, and between the picocell BRU 118 and the centralized computing node 145-2 are implemented through a class 2 C2 interface. The class 2 C2 interface is configured for the transmission of baseband data, data packets and control status messages, for example, for the exchange of computing tasks and control messages between computing nodes in the upper layer and in the bottom layer. The class 2 C2 interface can be integrated by combining the current CPRI interface protocols and the X2, Iur and Iub functions.
    The centralized computing node 145-1 / 145-2 and a core network 200 can be connected via a class 3 C3 interface. The class 3 C3 interface is configured for the transmission of data packets and control status messages. The class 3 C3 interface can be implemented through the functions of the existing Sl and Iu interfaces.
    In the modality shown in Figure 2, the amount of communication processing that needs to be processed by the centralized computing layer 140 can be further reduced through the intermediate computing layer 130, which reduces bandwidth requirements and improves the use of system resources.
    Communication processing included in this embodiment of the present invention refers to processing 5 related to wireless network communication, and includes, but is not limited to, data processing, joint interference management processing, joint resource programming processing, processing of joint computing task scheduling, joint processing or joint transmission of multi-standard baseband signals and upper layer protocols, and joint control of working mode or on-off state.
    The following section describes the operations of each network element by reference to a three-tier network architecture that does not include an intermediate computing layer (145-1 to 125-1 and 115-1 shown in figure 2) or a 4-layer network architecture that includes an intermediate computing layer (145-1 to 135, 125-2 and 115-2). However, this embodiment of the present invention can be applied in a similar way in a scenario where multiple intermediate computing layers are included, where each intermediate computing layer processes some or all of the communication processing of a cell served by a node. radio transception connected (or indirectly connected) to each intermediate computing layer. Figure 3A and Figure 3B are a schematic diagram of a data processing procedure according to an embodiment of the present invention. Figure 3A is a schematic diagram of an example of uplink data processing. Figure 3b is a schematic diagram of an example of downlink data processing. Communication processing includes, 5 in the case of data processing, the division of data received through each computing node for the differentiation of data that needs to be processed by the local computing node and data that needs to be processed by the computing nodes not local. Data that needs to be processed by non-local computing nodes can include data that is already processed by a previous layer computing node and / or data that needs to be processed by a next layer computing node. A computing node (centralized computing node 145) at the top layer of the network architecture and a computing node at the bottom layer (a local computer node 125) need to aggregate data that has undergone communication processing.
    Specifically, as shown in figure 3a, on the uplink, the local computing node 125 divides the D data sent from the radio transceiver nodes.
    In the modality shown in figure 3A, it is assured that there is no BRU, that is, the data is baseband data and control messages that are not processed. The local computing node 125 divides the D data into Dl processed by the local computing node 125, D2 processed by the intermediate computing layer 130 (an intermediate computing layer is assumed to exist) and D3 processed by the centralized computing layer 140 {D = DL + D2 + D3).
    So, baseband and / or L2 processing in Dl data
    Ç . which needs to be performed by the local computing node 125 is completed, and a data package Pl generated after D1 is processed and the data D2 + D3 that needs to be processed by the intermediate computing layer 130 and a top 5 computing layer 140 ( i.e., a centralized computing layer 140) are transmitted to local computing node 125 in the intermediate computing layer 130 connected to local computing node 125 (or centralized computing node 145 in the centralized computing layer 140 connected to the computing node site 125, if no intermediate layer of computation exists). The local computing load is the main functional node for reducing transmission bandwidth. In another aspect, if there is a BRU, the operations performed by the local computing node 125 may be similar to the following operations performed by the intermediate computing node
    135.
    The intermediate computing node 135 of the intermediate computing layer 130 divides data sent from a lower layer node {the local computing node 125 or a lower layer intermediate computing layer} on the uplink, and differentiates the D2 data that need to be executed in the intermediate computing layer 130 and the data Pl and D3 that do not need to be executed in the intermediate computing layer 130. The intermediate computing node 135 performs a baseband and / or L2 processing on the D2 data, and transmits the result of P2 processing (data packet) of the intermediate computing layer, the D3 data that needs to be processed by the computing layer of
    TH upper layer and c) Pl data that is already generated by the local computing node 125 for the upper layer intermediate computing node (if no upper layer intermediate computing node exists or the centralized computing node 145 {if no node upper layer intermediate computing exists).
    The centralized computing layer 140 is a computing layer connected directly to the core network. In the uplink, the centralized computing nodes 145 of the centralized computing layer 140 divide the data to be computed, and differentiates the D3 data that needs to be processed by the centralized computing nodes 145 and the data {for example, the data packets Pl and P2 (created after the bottom layer computing node completes data processing) that does not need to be processed by centralized computing node 145. Then, centralized computing nodes 145 perform joint processing and L2 processing on the band data base D3 not completed by the lower layer, aggregates the processing result P3 (a data packet) and the data packets Pl and P2 generated after the lower layer completes the processing in an E data packet, and transmits the data packet P for the core network.
    Similarly, on the downlink, the centralized connotation nodes 145 divide the data packet P sent from the core network at P3 which needs to be processed at the local computing layer, P2 which needs to be processed at the intermediate computing layer { if the intermediate computing layer exists) and Pl that needs to be processed on the centralized computing nodes
    Q. 145, where P = Pl + P2 + P3. L2 processing and baseband processing are performed on the Pl data packet that needs to be processed, and the processing result Dl (baseband signal and control message) and the P2 and P3 data packets that need to be processed processed at the intermediate computing layer and the local computing layer are transferred to the intermediate computing layer (if the intermediate computing layer exists) or to the local computing layer (if no intermediate computing layer exists).
    Intermediate computing node 135 divides data sent from an upper layer node (centralized computing node 145 or an upper layer intermediate computing node), and differentiates the P2 data that needs to be processed at the computing layer , intermediate and Dl and P3 data that do not need to be processed in the intermediary computing layer. The intermediate computing node 135 performs a L2 and baseband processing on the P2 data, and transmits the D2 processing result (baseband signal and control message), the P3 data that needs to be processed by the computing node. lower layer and Dl data generated after q centralized computing nodes 145 complete the processing for the lower layer intermediate computing node (if the lower layer intermediate computing node exists) or for the local computing node 125 (if no lower layer intermediate computing node exists).
    Local computing node 125 divides data sent from the upper layer computing node, and
    4 P differentiates the data packet P3 that needs to be processed by the load controller 25 and data (for example, the baseband signal and control messages D1 and D2 generated after the upper layer computing node has completed 5 processing) that do not need to be processed by local computing node 125. Then, local computing node 125 completes the thickening of the data packet P3 that is not completed by the upper layer, aggregates the processing result D3 (baseband signal and message control) and the baseband signal and control messages D1 and D2 sent from the upper layer into a baseband signal and a control message D, and transmits D to a radio transceiver node.
    When a compute node divides data, the co-computing node can determine a data division relationship according to factors such as the computing capacity of the compute node, an internal bandwidth, and data processing requirements (requirement processing speed, delay requirement and processing volume requirement). In the modality shown in figure 3A, the local computer node 125 can directly divide the D1 data that needs to be processed in the local computing layer, the D2 data that needs to be processed by the intermediate computing node 135, and the D3 data that needs to be processed. processed by centralized computing node 145, which is not limited in this embodiment of the present invention. Local computing node 125 may not differentiate between D2 and D3, but only divides 9 Di data that needs to be processed in the local computing layer and D2 + D3 that does not need to be
    * processed at the local computing layer. Then, c) intermediate computing node 135 differentiates D2 and D3 according to the · actual requirement. Similarly, in the modality shown in figure 3B, the centralized computing nodes 5 145 may not differentiate between P2 and P3.
    In the modalities shown in figure 3A and figure 3B, except for the last layer computing node, the computing nodes of other layers do not aggregate the data, but transmit several data separately, for example, the data generated after the local layer performs a processing, data already processed by the previous layer, and data that needs to be processed by a next layer. The data is not limited in this embodiment of the present invention. When data is transmitted to an upper layer computing node or a lower layer computing node, the data can be aggregated before being transmitted.
    Communication processing that can be performed by the layered network architecture provided in this embodiment of the present invention can include joint interference management processing.
    For example, for a user device at the cell boundary, if joint processing can be carried out between neighboring cells, the transfer rate of the user device can be greatly increased.
    In this embodiment of the present invention, an adaptive errt layer can be adopted in the processing of joint interference management. The basic principle for stopping joint interference management is that an interference is preferably t ¥ processed by an upper layer computing node shared by both intervening parties.
    The following describes the joint interference management processing provided in this embodiment of the present invention with reference to the system architecture shown in figure 2. The local computer node 125 preferably performs the communication processing of user equipment without a visible interference in a cell corresponding to radio transceiver nodes 116 to 118 in claw 15 connected to local computing node 125 or the interference processing of user equipment that suffers only interference (for example, interference from other network nodes) radio transceiver 116 to 118 or interference from a UE served by the other radio transceiver nodes 116 to 118) of a cell corresponding to the other radio transceiver nodes 116 to 118 in the combination of radio transceiver 115 connected to the node local computing node 125. For example, local computing node 125-1 preferably performs communication processing that of a user equipment with no visible interference in a cell corresponding to the combination of radio transceiver 115-1 or the interference processing of a user equipment that suffers only interference from a cell corresponding to radio transceiver nodes 116 to 118 in the combination of radio transceiver node 115-1.
    Intermediate computing node 135 preferably performs interference processing from user equipment in a cell corresponding to a
    * 'k, radio transceiver in a combination of radio transceiver NODE connected to a lower layer intermediate computing node or a local switching node connected to intermediate computing node 135, where the user's equipment is interfered with by a cell corresponding to a radio transceiver node in a radio transceiver combination connected to other lower layer intermediate computing nodes or a local computing node connected to the intermediate computing node. For example, if a cross-computing node 135 is connected to multiple local computing nodes, the intermediate computing node 135 will preferably process interference between multiple local computing nodes.
    Centralized computing node 145 preferably performs interference processing from user equipment in a cell corresponding to a radio transceiver node in a combination of radio transceiver connected to an intermediate lower layer computing node or a local computing node connected to centralized computing node 145, where the user equipment is interfered by a cell corresponding to a radio transceiver node in a combination of radio transceiver node connected to other intermediate computing nodes of lower layer or a local computing node connected to the centralized computing node. Taking the architecture shown in figure 2 as an example, if a user A device served by radio transceiver 116 connected to local computing node 125-1 is interfered by radio transceiver node 118 connected to cornput node
    4 ¢ local 125-2, an upper layer computing node (that is, the ceramic computing node 145-1) shared by them will perform interference processing.
    Interference processing by the local computing node 5, the intermediate computing node and the centralized computing node can include a joint interference cancellation, a joint time-frequency resource coordination, a joint power control, and a multiple point coordinate (coordinate multiple point, COMP) between multiple base stations.
    In this way, most user signals can undergo joint processing at the local computing node, which greatly reduces the volume of data transmitted to the upper layer computing node, thus saving fiber resources and reducing the load on the network node. upper layer computing.
    Figure 4 is a schematic diagram of a typical example of a HetNet network architecture according to an embodiment of the present invention. As shown in Figure 4, the HetNet network architecture includes a centralized computing node 245 and two local computing nodes 225a and 225b. In the HetNet network architecture, a local computing node is typically regulated as a base microstation, for example, 'it is colocalized with a' micro-cell RRU. The local computing node can also be regulated in an area formed by multiple neighboring base macro stations, for example, it is connected to multiple macrocell RRUs. The communication processing performed by the local computing node includes: (1) splitting the communication processing into "packets of
    Q Ç computing task "of different loads flexibly according to users, uplink / downlink, and macro / peak, so that the system performs an adaptive allocation of processing loads 5 between the centralized computing node and the local computing node according to the actual need; (2) execution of baseband signal processing tasks that are suitable to be completed at the local computing node: all the baseband processing of user signals from the macro / local peak, not interfering with another macro / peak; (3) running a pre-processing of local macro / peak baseband signals (eg, FFT, mapping / demapping, and pre-coding) or processing signal compression; (4) implementation of unified processing and joint transmission of multiple systems of different standards through a software-defined radio urri (software-defined radio, SDR).
    Specifically, in the example shown in Figure 4, a local computing node 225a is connected to a radio transceiver node combination formed by a macrocell RRU 215a, a picocell RRU 215b and a picocell BRU 215C, where the Local computing 225a is colocalized with the macrocell RRU 215a, and the picocell RRU 215b and the picocell BRU 215c are in the MCl coverage of the macrocell RRU 215a.
    Local computing node 225b is connected to a combination of formal radio transceiver node by a micro-cell RRU 215d, a micro-cell RRU of urine 2i5e, and a micro-cell BRU 215f, where local computing node 225b is located with the microUU RRU. macrocell 215d, and the RRU of
    , picocell 215e and picocell BRU 215f are in the MC2 cover of the macrocell RRU 215d. ' In a larger area formed by multiple macrocells, the local computing node 225a / 225b err each macrocell is connected to a centralized computing node 245. In this way, an upper layer cloud computing architecture is formed in a larger area.
    Figure 4 illustrates only two macrocells MCl and MC2, which are not limited in this embodiment of the present invention. A centralized computing node can be connected to multiple local computer nodes, and each local computer node can also be connected to more micro-cell RRUSs. Each macrocell may not have picocell RRUs or picocell BRUS, and the picocell RRUS / BRUS number can be increased or decreased, according to the actual need. All of these modifications must fall within the scope of the present invention.
    In the following descriptions, in the event that differentiation is unnecessary, local computing nodes 225a and 225b are collectively referred to as the local computing node 225 ', and the macrocell RRU 215a, the picocell RRU 215b, the picocell BRU "215C, 'the' RRU of macrocell cell 215d, the RRU of picocell cell 215e and the BRU of picocell cell 215f are collectively referred to as the radio transcription node 215.
    For example, in Figure 4, each radio transceiver node is first connected to the local computing nodes 225, and then connected to the centralized upper layer computing node 245 through the local computing nodes 225, but not there is an interface between the local computing nodes 225 and there is no connection between radio transceiver nodes Due to the fact that the standardization of the X2 interface does not consider coordinated multiple point (COMP), the bandwidth and the delay of the 5 X2 interface cannot meet the requirements of coordinated multiple point and joint processing. In this embodiment of the present invention, there is no logical interface between the base stations, and coordinated multiple point and joint processing are performed by the upper layer computing node. In addition, the RNC is canceled in this embodiment of the present invention, and the data processing and joint programming performed by the RNC in the UMTS system is performed in the upper layer computing node.
    Furthermore, due to the fact that the HetNet network is a unified RAN, the processing of all computing nodes is implemented through software. Different virtual machines or different processes on the unified operational platform perform a processing of different radio standards, implement G / U / L / WiFi (ie GSM / UMTS / LTE / Wifi), and support a joint transmission of multiple systems. different patterns.
    It should be noted that the HetNet architecture shown in figure 4 is just an example, and is not limited in this embodiment of the present invention. The number of compute nodes, the location of the compute nodes and the number of layers of the compute nodes can be modified according to the actual need, or one or multiple layers of corriputation nodes can be added. HetNet architecture shown in figure 4 can be used
    Have. correlation with continuous picocell coverage, that is, some local computing nodes 225 can be connected to multiple picocell BRUS / RRUS in continuous coverage in a smaller area. All of these modifications fall within the scope of the present invention.
    In the HetNet scenario shown in figure 4, the interference that c) user equipment suffers can be divided into the following types: 1) A user equipment (UE) without visible interference: The UE without visible interference in a MC1 / MC2 of macrocell: typically, this type of UE is located in the central area of a local macrocell. Due to the fact that this type of UE is far from neighboring macrocells, this type of 'UE suffers very little interference from neighboring macrocells. In addition, due to the fact that this type of UE is far from active areas using the same frequency band in the local macrocell, this type of UE suffers very little interference from the picocell.
    The UE with no visible interference in the picocell: typically, this type of UE is located centrally in an isolated active area. Due to the fact that this type of UE is located in an isolated active area, the UE suffers a small interference from other picocells in the local microcell. Due to the fact that this type of UE is located in the central location of the picocell, the UE also suffers relatively little interference from the microcell.
    For the UE without visible interference, the UE data is preferably processed at the local computing node
    4 N connected to the UE, if c) tidal effect 'is not considered.
    This is because, even if a joint processing is carried out, the generated gains will not be visible, and the baseband signal transmission loads can obviously be increased. For the cloud-RAN architecture provided in this embodiment of the present invention, the processing of communication of this type of user data preferably is performed at the local computing node.
    For user equipment with visible IO interference, the following two cases are divided according to the source of interference: the data is preferably processed on the local computing node 225 and the data is preferably processed on the centralized computing node 245.
    2) User with interference preferentially processed at the local computing node 225 For c) in which case the data is preferably processed at the local computing node 225: Type I: a microcell UE that suffers only macrocell interference. This type of UE is located at the edge of the picocell, but there are no other picocells around this type of UE. Therefore, UÊ signals are only affected by picocell signals.
    Joint interference processing needs to be performed only between the picocell and the macrocell. For example, if the UE served by the picocell RRU 215b suffers only interference from the MCl macrocell, the interference from the UE will be handled by the local computing node 225a.
    Type 2: a macrocell UE is located at the edge of the piccell, whose source of interference comes from t 4. picocells. neighbors. The joint interference processing needs to be carried out between only the macrocell and the picocell, creating greater interference.
    For example, if c) UE served by the macrocell RRU 215a 5 suffers only interference from the picocell RRU 215b, the interference from the UE will be handled by the local computing node 225a.
    Type 3: if two picocells are very close, a user located on the border between these two picocells can always suffer interference from two other cells, regardless of whether the user belongs to the macrocell or to one of the two picocells. There are three examples: the ÜE served by the microcell MCl is interfered by two neighboring picocells (that is, an interference by the RRU of picocell 215b and BRU of picocell 215C); the UE served by the RRU of picocell 215b suffers an interference from the RRU of macrocell 2i5a and BRU of picocell 215C; the UE served by the picocell BRU 215C is interfered by the macrocell RRU 215a and the picocell RRU 215b. Joint interference processing needs to be performed between just the macrocell and the two neighboring picocells. For example, in the three examples above, the interference is handled by the local computing node 225a.
    For users who preferably undergo joint interference processing at the local computing node, their data is preferably processed by the local computing node in the cloud-RAN architecture associated with the users, if the rnaré effect is not considered.
    Due to the fact that their interference dizziness exists at k between cells of the local computing node, joint processing can be performed only at the local computing node. In this case, even if joint interference processing is performed on the centralized cornputation node 5, additional performance gains may not be created, while the loads of the baseband signal transmission can obviously be increased.
    3) user data with interference preferably processed at the centralized computing node 245 For an interference that is preferably processed at the centralized computing node 245: Type 4: the UE served by a macrocell (for example, one among 'MCl and MC2) located at the edge of several macrocells (for example, MCl and MC2). When there is no picocell around the UE, the source of interference from the UE mainly comes from a neighboring base microstation (MC2 or MCl). For users located in non-active areas of the macrocell, their signals are interfered by neighboring macrocells. Due to the fact that the local correlation node is located in the local microcell, the local computing node cannot perform joint interference processing on users in several macrocells around the users. Therefore, this UE type sends data to the centralized computing node 245. Because centralized computing node 245 is responsible for macrocells and picocells in a larger "a" area, it can perform joint interference processing in signals from multiple users of different macrocell. For example, if the UE service by MCl experiences interference
    <k of the MC2 base microstation, c) centralized computing node 245 will process the interference.
    Type 5: if an active area is located on the border between several microcells, regardless of whether the 5 users at the edge of the picocell belong to the picocell or to a macrocell, users will experience interference from other cells. For example, a UE served by the RRU of picocell 215e suffers an interference from the base macrostations of the neighboring macrocells MCl and MC2; a UE served by the MCl macro cell is affected by interference from the base BRU of picocell 215C and the macrocell MC2; users of the MC2 macrocell suffer interference from the base macroestations of the RRU of picocell 215e and 'of the MCl macrocell. Because the bottom layer computing node is located in the local macrocell, the local cloud-RAN architecture will not be able to perform joint interference processing on users across multiple macrocells around the users.
    Therefore, even as Type 4, this type of UE sends data to the centralized top layer computing node
    245. Because the top-layer cloud-RAN architecture is responsible for microcells and picocells in a larger area, it can perform joint interference processing on signals from users other than macrocell and picocell.
    For users that yreferentially undergo joint interference processing at the centralized computing node 245, their data is preferably processed at the upper layer computing node in the cloud-RAN architecture. Due to the fact that their sources of q P interference are located between macrocells and picocells in various local cloud-RAN architectures, joint processing is expected to be performed on centralized computing node 245, to improve system performance. Due to the fact that there are only a few users at the boundary between various bottom-layer cloud-RAN architectures, data transmitted in the top-layer cloud-RAN architecture for joint processing is limited, which does not impose too heavy loads on the network. transport of baseband signal.
    To determine and joint processing of the upper layer needs to be carried out, the network side may 'ask the UE to periodically measure the reference signal strength and receive the delay from the next RRU / BRU. If the network side finds that multiple RRUS / BRUS have similar intensity and delay, it will transfer the user data to an upper layer computing node shared by these RRUS / BRUS. Conversely, if the network side finds that there are relatively large differences between the reference signal strength of neighboring RRUs / BRUS as measured by the UE processed in "an upper layer computing node, by eZerrlplQ, when the intensity of just one or several RRUS / BRUS is greater, the network side will transfer the UE signal to the lower layer computing nodes corresponding to those RRUs / BRUs.
    Taking LTE as' an example, in the bottom-up, when the bottom layer computing node (a switching micron or a local computing node) receives data extracted by the radio unit, it performs FFT on the data
    K t e divides data into resource blocks (RBS, resource blocks) processed by a computing micronode (if BRU exists), a local computing node and a centralized computing node. The computing nodes in each layer process 5 corresponding baseband data, and transparently transmit the baseband data processed by the upper layer to the upper layer computing node.
    In the downlink, the centralized computing node divides data packets from the core network into parts processed by the centralized computing node, the local computing node and the computing micronode (if the BRU exists). The baseband data and process control messages on each layer are combined on the bottom layer computing node (on the local computing node on the computing micron) and processed by the radio unit for signal transmission.
    For a CDMA access network (code split multiple access, code split multiple access), different user data is loaded into an orthogonal code sequence. The method of processing the data can be similar to the method of differentiating users by time-frequency resource blocks, and is not further described.
    The communication processing performed by the communication system provided in this embodiment of the present invention can include joint resource programming processing. By allocating resources between neighboring cells, the communication system reduces interference between cells, and improves resource utilization and system performance. In the architecture of
    4 r, multi-layer cloud-RAN provided in this embodiment of the present invention, resource management is performed on different network layers according to different user locations, and the computing nodes in each 5 layer are responsible for resource programming in different cases. The principle for processing joint resource programming is that the local computing node, the intermediate computing node or the centralized computing node connected to the radio transceiver node serving the user to perform a resource programming on the user equipment.
    As shown in figure 2, local computing node 125 performs resource programming between cells corresponding to radio transceiver nodes 116 to 118 in a combination of radio transceiver node 115 connected (directly connected) "to the local computing node
    125. The intermediary computing node i35 performs a resource programming between cells corresponding to the radio transceiver nodes 116 to 118 in the correspondence of radio transceiver node 115 connected (indirectly connected) to the intermediate computing node 135. The centralized corriputation 145 performs a resource preamp between cells corresponding to radio transceiver nodes 116 to 118 in the combination of radio transceiver node 115 connected (directly or indirectly connected) to centralized computing node 145.
    In a heterogeneous network HetNet scenario shown in figure 4, the local computing node 225 performs a joint macro-peak resource programming. for central users in the macrocell and users in the picocell within the macrocell, interference with other macrocells is very small, so that fully localized programming and control can be performed on the resources, and only the joint macro programming of 5 resources. - local peak needs to be performed. Because joint macro-peak programming can be used, the traffic channel resources of the picocell can be reused in the macrocell. For different picocells distant from each other, the interference between them is very small, and the "control channel and traffic resources can be programmed independently. For example, the local computing node 225a can perform a joint macro resource programming. -peak in the coverage of the MCl, and the local computing node 225b can perform a joint macro-peak resource programming in the coverage of the MC2.
    Centralized computing node 245 performs a joint global macro-peak resource schedule. The UES at the 'edge of a macrocell and the UES at the picocell at the edge of the macrocell have mutual interference with other macrocells. PortaÁto, for these UEs, a global resource schedule needs to be carried out. For example, as shown in figure 4, assuming that the RRU of picocell 215e is located on the edge between the cover of the MCl microcrocell and the cover of the MC2, a resource allocation in the RRU of picocell 215e can be programmed by the centralized computing node 245 to reduce inter-cell interference.
    The following is based on the fact that inter-cell interference is reduced through joint programming of frequency domain resources:
    d a In the background layer cloud architecture, the local computing node performs a resource allocation at the edge between the picocell in the macrocell and the macrocell. At the border between the two neighboring picocells, the frequency resources 5 are divided into fl, f2 and f3, which are used respectively by the border UES of the two picocells and the macrocell at the border. The specific relationship of each frequency domain resource is determined by the number of users and the data traffic at the edge of each cell.
    In the upper layer cloud architecture, the centralized computing node 245 performs a resource allocation between multiple bottom layer cloud architectures.
    For example, on. HetNet cloud computing architecture shown in figure 4, q centralized computing node 245 is responsible for allocating frequency domain resources from the border UES on the border between two MCl and MC2 macrocells and a picocell (for example, cell ' ula covered by RRU of picocell 215e) near the border between macrocells. For example, the frequency domain resources are divided into fl, f2 and f3, which are used respectively by the border UEs of the two picocells and the macrocell on the border. The specific relationship of each frequency domain resource is determined by the number of users and the data traffic r at the edge of each cell.
    Assuming that the macrocell and the picocell use the same frequency domain resource in a heterogeneous network, the upper layer and lower carnation computing nodes can program an exact time-
    (r frequency. To avoid programming conflicts, the following two solutions can be used: (1) the resources programmed by the local computing node, the intermediate computing node and the centralized computing node are configured differently.
    This is a multilayer schedule based on frequency division / time division / space division, without changing the current standard data processing procedure.
    Specifically, the upper layer computing node performs joint programming to erect certain time / frequency / space domain resources in UES that need to undergo joint processing in the lower layer coverage. The lower layer computation node performs programming on other related resources and remnants of the upper layer time / frequency / space domain. That is, the lower layer computing node performs programming on remaining resources (other) of time / frequency / space from the upper layer (programming). To ensure the transfer rate of the local UE, the resources in the upper layer for joint programming of the upper layer must be limited by a certain range, and dynamically adjusted according to the actual UE distribution and a volume of data.
    (2) The upper layer computing node performs resource programming preferably. This programming is executed by the upper layer and can optimize the transfer rate of the entire network.
    The channel information of all user equipment, for example, a good signal reference
    K uplink SRS quality (good quality reference signal), a CQI (channel quality indicator, channel quality indicator) / PMI (pre-coding matrix indicator, pre-coding matrix indicator) 5 / RI (score indicator, score indicator), is transmitted to the computing node at an upper layer.
    Due to the fact that user data passes through the corriputation node in an upper layer, the computing node in an upper layer has the current information and the previous user data rate when executing a unified programming for guarantee programming probity. If the compute node at an upper layer has powerful computing capacity, it is acceptable to unify the computational loads of the upper layer user programming.
    In a conventional C-RAN architecture, due to the fact that the BBU is far from the RRU, the BBU needs to be connected to the RRU via high-speed fibers, which requires high baseband transmission costs.
    In the architecture provided in this modality of the present invention, the local computation node is very close to the RRU of the local cell and the RRU / BRU of the picocell. For example, if the macrocell where the distance between locations is 500 meters is taken as an example, the distance between the local computing node and the remote picocell RRU will be around 200 meters. In this way, a large amount of technologies and short distance connection media can be used as connections between different nodes provided in this embodiment of the present invention. For example, the connection between the radio transceiver node in
    And a combination of the radio transceiver node and the local computing node, the connection between the local computing node and the intermediate computing node, or a connection between intermediate computing nodes in the upper layer and the lower layer is established through a fiber, a DSL (digital subscriber line), a microwave link or an electric power cable. Therefore, the layered structure greatly simplifies the topology of the baseband signal transport network, and effectively reduces the transmission cost. The means of connection between nodes can be determined according to factors such as the computing capacity of each node, the internal distance, the internal transmission bandwidth requirement, and / or internal transmission delay requirements.
    For example, technologies such as DSL digital subscriber line (twisted pair or copper wire), microwave link and electrical power cable can implement a transmission rate close to one Gbps within 200 meters, and can be used to replace the fiber for local short distance signal transmission.
    For the connection between the local switching node and the centralized switching node, a fiber can be used, because the number of these nodes is small and the distance between them is long.
    According to the real scenario, different physical means can be used in baseband signal transport networks in each cloud RAN carriage according to the transmission distance and cost.
    With respect to the transmission bandwidth, the network architecture provided in this modality of the present
    The invention can allocate computing loads according to the bandwidth adaptability of the baseband signal transport network. When the available transmission bandwidth is greater, processing loads 5 can be transferred to the upper layer computing node, which simplifies the configurations of the local computing node. When the available transmission bandwidth is less, most processing loads can be allocated to the local computing node.
    The communication processing performed by the communication system provided in this embodiment of the present invention can include a joint computing task programming processor. the network architecture provided in this embodiment of the present invention is capable of balancing computing loads over a larger area and effectively utilizing computing resources.
    A computing task is mutually transferred, according to computing loads, computing capacities, transmission bandwidth and transmission delays, between the local computing node and the intermediate computing node connected to the computing node local, between c) the intermediate computing nodes connected to the upper layer and the lower layer, between the intermediate computing node and the centralized computing node connected to the intermediate computing node, and between interconnected centralized computing nodes.
    The baseband data corresponding to the RRU in the local macrocell is preferably processed at the local computing node. If the computing load of the local computing node is too heavy due to the ability to
    »Limited processing of the local computing node or the tidal effect of the user equipment, the local computing node may transfer some signals to an upper layer computing node {for example, the intermediate computing node or the centralized computing) for .processing. The upper layer computing node is responsible for balancing the computing loads of the local computing node over a larger area.
    When the computing load of the upper layer cornput node is too heavy, the upper layer computing node can transfer some of the computing tasks to the local cornput node for processing.
    Generally, for a multi-layer RAN cloud, due to the fact that. computer tasks are distributed across different computing nodes using more than two layers, the computation of computing tasks can be performed on the upper layer computing node in a centralized manner on the computing nodes on each layer in a distributed manner.
    If the computing tasks are scheduled in a centralized manner, the upper layer computing node will schedule the transfer of computing tasks. For example, in the HetNet scenario shown in figure 4, each local computing node 225 can periodically report current computing loads to the upper layer centralized computing node 245. After centralized computing node 245 collects information from each local corriputation 225, it determines whether to transfer some of the computing tasks from some local computing nodes to the centralized computing node.
    E F Then, centralized computing node 245 returns a programming command for each local computing node 225 to indicate whether any computing tasks need to be transferred and the computing load to be transferred.
    5 If the computing tasks are scheduled in a distributed manner, the computing node will schedule the transfer of computing tasks according to the requirements of other computing nodes. In this case, the local computing node 225 has equal rights to the centralized computing node 245. When the computing resources of the local computing node 225 are insufficient, the local computing node 225 sends a request for the transfer of computing tasks. for centralized computing node 245, where the request includes the transferred computing load. After centralized computing node 245 receives the reported request through each local computing node 225, it provides feedback, according to the inactive state of its computing resources in combination with the requests from each subordinate local computing node 225 , for the request sent from each local computing node 225 to transfer computing resources. The return message includes whether the computing tasks are allowed to be transferred and the computing load to be transferred. Errt another aspect, when the resources of the centralized computation node 245 are insufficient, the centralized computation node 245 sends a request for the transfer of computer tasks (for example, a transfer request on the fifth part of communication processing) for the local computing node
    Lower layer F F 225 through interrogation or random selection, or send a · request to transfer computing tasks to other centralized computing nodes, where · the two request messages include the computing load to be transferred.
    The local computing node 225 or centralized computing node 245 that receives the request returns, according to the inactive state of its computing resources, a programming command to the centralized computing node 1024 sending the request, to indicate. whether some computing tasks need to be transferred and the computing load to be transferred.
    If the communication system supports multiple standards, the radio transceiver node combination may include radio transceiver nodes supporting multiple standards. In this case, the communication processing performed by means of each computing node in this embodiment of the present invention may include processing of communication systems of different standards and / or a joint processing of multiple communication systems of different standards.
    The radio frequency, up / down conversion, filtering and baseband processing part of the conventional analog radio system takes the analog way. Each communication system with different frequency bands and modes of modulation has its own special hardware structure. However, the low frequency part of the digital radio system adopts a digital circuit, but the radio frequency part and the intermediary frequency part still depend on the
    0 F analog circuit. If compared to the conventional radio system, the A (D and DA converters of the software-defined radio are moved to the intermediate frequency and located as close to the radio end as possible, 5 and sample it from the entire system, which is an outstanding feature of software-defined radio. The digital radio adopts a special digital circuit to implement a single communication function, with no programming capability. However, the software-defined radio uses a .DSE digital signal, digital signal processor) with a powerful programming capability to replace the special digital circuit, so that the hardware structure of the system is relatively independent of the function of the system, so based on a relatively universal hardware platform , the software-defined radio system implements different communication functions using software, and performs programming control by f frequency of operation, system bandwidth, modulation mode and source coding, greatly improving the system's flexibility.
    In this embodiment of the present invention, due to the fact that each computing node is formed by a high performance CPU or a cpu and DSP arrangement, the same computing node can support RRUS of different standards for baseband signal and protocol processing top layer. This creates a number of benefits: different standards are used in the same processing unit, which simplifies the network architecture and reduces the costs of building the network; the upg.rade of the system or a base station is easily completed by updating the software of the computing nodes, which facilitates the regrouping (regrouping) of existing spectrum resources.
    5 If the user equipment supports a concurrent transmission of multiple systems of different standards, the local computing node will download, according to the actual situation (radio link conditions and network loads), into different systems, the data for different systems for transmission. In uplink transmission, the local computing node or the intermediary computing node or the centralized computing node aggregates the data in different systems. If the user equipment supports multiple transmission, the SDR-based and centralized processing mode will certainly support a joint transmission of multiple systems of different standards. These standards can be G / U / L / WiFi, and the joint transmission of multiple systems of different standards can be carried out in different 2Cl protocol layers, for example, in PHY (physical layer), in MAC (media access control) , media access control) and RLC (radio link control, radio link control). In addition, the computing node can perform unified programming in the joint transmission of multiple systems of different standards.
    'In the layered HetNet architecture shown in Figure 4, the baseband signal processing of the local base microstation and the base macrostation is performed at the local computer node 225 in a centralized manner. In this scenario, network configurations can be performed
    52/64.
    µ j t.
    & F adaptive form between the base microstation and the base macrostation. Compared to conventional HetNet, HetNet provided in this modality has a more flexible RAN architecture.
    The communication processing provided in this embodiment of the present invention includes a joint control over the working mode or the on-off mode of the picocell RRU or the picocell BRU in a radio transceiver node combination. "For example, a picocell can be configured in the following three ways in a flexible and adaptive way: (1) an independent picocell with its own cell ID (cell identifier) and all control / data channels; (2) a relay station (RN , relay node) of the base macrostation; for a common band transmission mode, the RÍSI is connected to the RAN via a donor eNode B wirelessly, and the frequency band used is the same as that of the link between Çl RN eq terminal; (3) a distributed antenna from the base macrostation, which sends / receives some or all of the radio signals from the base macrostation in an SFN (single frequency network, single frequency network) way or other ways in space coding '(eg SFBC (space-frequency block codes, space-frequency block codes)).
    The number / mode of the RRUS or BRUS picocell can be configured adaptively according to different scenarios. For example, the picocell RRUS or BRUS can be configured for the preceding three different working modes.
    For example, when traffic from an active area varies
    "53/64. Greatly over time, for example, the number of users is large in the daytime, while the number of users is small at night, the picocell RRU or BRU can be activated when the number of users is greater, while the 5 RRU or BRU. of picocell can be deactivated when the number of users is smaller The RRU or BRU of picocell can be activated or deactivated adaptively according to the available bandwidth or transmission load resources.
    When the available transmission bandwidth between local computing node 225 and centralized computing node 245 is less, a picocell RRU or BRU can be added. In this way, more users are served by RRU or BRU of picocell. Due to the fact that the transmission power is reduced, an interference from other base macrostations and an interference in other base macrostations are greatly reduced when compared to the direct transmission between the UE and the base macrostation.
    Therefore, it is unnecessary to perform joint processing on the centralized computing node, which effectively reduces the transmission bandwidth requirements between the local computing node 225 and the centralized computing node.
    245. ' The communication system provided in this modality of the present invention performs a layered processing and located in the BBU computing resources, so that the radio transceiver nodes in a small area are managed in the local computing node of a centralized way, while the radio transceiver nodes in a larger area are managed in the
    K T top layer in a centralized manner. A radio transceiver node is directly connected to the local computing node and indirectly connected to the upper layer cornutation nodes in a large area through the local cornutation node. In addition, some radio transceiver nodes are also connected to the upper layer computing nodes. In this embodiment of the present invention, computing resources and joint processing can be programmed between the local computing node and the centralized computing node in an adaptive manner according to user distribution, data volume and interference.
    For the HetNet system, the local computing layer may be positioned in a partially smaller area, for example
    For example, a macrocell, to reduce the bandwidth requirement of the transport network through partially local computing processing. In addition) multiple short distance transmission technologies can be used locally. In this case, different data ratios to be processed through cloud computing can be selected according to the bandwidth of the actual connection medium. The upper layer of centralized computing is responsible for managing radio transceiver nodes and computing nodes in a larger area, so that the user's tidal effect is resolved by programming computing resources. Whether the intermediate computing layer is used as the transition from the local computing layer to the centralized computing layer is determined according to the actual network formation.
    € When compared to the conventional C-RAN architecture, this modality of the present invention has the following advantage: a bandwidth for connection between the base station and the cloud computing node is greatly saved.
    5 In future communication networks, the number of picocells is several times the number of current macrocells; bandwidth becomes increasingly wider; and the number of antennas is dramatically increased from four to several dozen or even a hundred. If conventional AI-cloud-RAN architecture is used, it will be a major challenge for fiber transmission to connect all baseband data to the cloud computing center several kilometers away.
    For example, in the downlink, assume that in an LTE system, each base station corresponds to three sectors, where each sector has eight antennas; each macrocell has 10 picocell base stations and unique antennas, each corresponding to a picocell cell respectively, that is, each macrocell has 10 picocell base stations, where each picocell base station corresponds to a picocell respectively; each base station corresponds to a spectrum of 20 MHz, with a sampling frequency of 30.74 MHz and 22 bits from each sampling point are quantified. The data rate of connection of downlink data from the base station to the computing center erri nuvern is calculated as follows: (3 x 8 + 10) x 30.74 MHz x 22 bits = 23 Gbps.
    However, from the perspective of joint signal processing gain, it can be found that all UES do not need to be directly connected to a unified cloud 3Ci computing node, and that only the UES at the edge of cell r H have joint processing gains. visible. If the majority of baseband data processing and same L2 data processing is carried out locally according to the modality of the present invention, the data rate required for connection to the cloud computing center will be greatly reduced: the data rate data is reduced by one third after the channel is decoded; if 64 QAM is used, the data rate will be reduced by 5/22 after the data is demodulated; if a cyclic prefix (CP, cyclic prefix) is removed, the data rate will also be reduced; if L2 data processing can be performed locally, the frame header, a CRC check and a control field can be saved. If 10% of transmission bandwidths can be saved by completing the L2 pre-processing, only 20% of the god data will require joint processing. the LTE downlink data rate is 23 Gbps x 20% + 23 Gbps x 80% x 90% x 1/3 x '5/22 = 5.8 Gbps. In the upstream erilaCe, the transmission bandwidth ratio saved by performing local processing on the baseband data is close to that saved on the downlink. As known above, the communication system with a lower layer, that is, a local computing layer, creates a large amount of bandwidth savings advantages.
    Even if problems such as balance of computing resources and tidal effects created by the cloud-RAN architecture are considered, in the multilayer computing architecture provided in this modality of the present invention, computing tasks can also be performed.
    4 F programmed in the upper and lower layer computing nodes, which does not lose the advantage of the conventional C-RAN architecture.
    The second advantage is in the following aspect: in the conventional C-RAN architecture, each base macrostation is required for connection to the cornputation center through fibers. However, in the near future, when a large number of base macrostations are employed, if all base macrostations are uniformly connected to the computing center via fibers, the costs of fiber deployment will be greatly increased. In this embodiment of the present invention, the base station data can be centralized locally in a 'right' range, and then transmitted to the upper layer computing center. Because the base station data is centralized locally, multiple short distance communication technologies can be used, for example, a microwave link, a DSL and an electrical power cable, to reduce transmission costs. base band. For the conventional C-RAN architecture, if the baseband data rate cannot satisfy the requirement that all baseband data must be processed through cloud correlation, the cloud architecture architecture cannot be used.
    In this embodiment of the present invention, user data that mostly needs to be processed through nuvern computing can be selected according to the base bank data transmission bandwidth, while other data is processed locally, in a way that the cloud architecture can be used under any circumstances.
    Figure 5 is a schematic flowchart of a method for managing a communication system according to an embodiment of the present invention. The method shown in figure 5 is performed by the communication system shown in figure 1 or figure 2. The communication system includes a radio transceiver layer, one.
    local computing layer and a centralized computing layer. The radio transceiver layer includes a c) ü more radio transceiver node combinations, where a radio transceiver node in each radio transceiver node combination includes at least one type of the following: a macro cell radio unit , a remote picocell radio unit, and a picocell radio re bandwidth unit. The local computing layer includes one or multiple local computing nodes, where each local computing node is connected to the radio transceiver nodes in one or multiple neighboring radio transceiver combinations. The centralized computing layer includes one or more centralized computing nodes, where each centralized computing node is connected to one or multiple local computing nodes in the local computing layer.
    Step 501: a local computing node performs all of the communication processing or a first communication processing portion of a cell corresponding to a radio transceiver node in a radio transceiver combination connected to the local computing node.
    Step 502: a centralized computing node performs a second communication processing part of a cell corresponding to a radio transceiver node in a radio transceiver combination connected to one or multiple local computing nodes, if ' the local computing node "performs the first communication processing part 5, wherein all communication processing includes the first communication processing part and the second communication processing part.
    In this embodiment of the present invention, a local computing layer is added between the centralized computing layer and the radio transceiver layer, and is responsible for all or part of the communication processing of neighboring cells within a certain range. In this way, all processing does not need to be carried out by a centralized computing node that is distant, which saves network bandwidth and improves the use of sister resources.
    It should be noted that, although step 501 is performed before step 502 in figure 5, the specific execution sequence is not limited in this embodiment of the present invention. In fact, step 501 and step 5'02 'can be mutually independent, for example, step 501 can be performed after step 502, or step 501 and step 502 are performed at the same time. All of these modifications fall within the scope of the present invention.
    Figure 6 is a schematic flow chart of a method for managing a communication system according to another embodiment of the current invention. The communication system provided in this embodiment shown in figure 6 is shown in figure 2. In some parts of the communication system provided in this embodiment, one or multiple is q, intermediate computing layers 130 can be added between a centralized computing layer 140 and a local computing layer 120, according to the actual requirement for further reduction of bandwidth requirements. Each interredial computing layer 130 includes one or multiple intermediate computing nodes
    135.
    In addition to step 501 and step 502 shown in figure 5, the method shown in figure 6 includes: lCi Step 503: an intermediate computing node performs a third communication processing part of a cell corresponding to a radio transception node in a combination of radio transceiver node connected to the local computing node connected to the intermediate computing node, if the local computing node performs the first communication processing part.
    In addition, if a picocell BRU also shares some processing tasks, the method shown in Figure 6 will still include: Step 504: a baseband BRU and picocell radio unit performs a fourth part of the communication process of a corresponding cell to the base band and picocell radio unit, if the local computing node performs the first part of the communication processing.
    Or, when computing tasks are programs between centralized computing nodes 145-1 and 145-2, the method shown in figure 6 can also include: Step 505: a centralized computing node transfers, through a task schedule , a fifth part of communication processing to other centralized computing nodes for execution.
    All communication processing still includes the fourth part of communication processing and / or the fifth part of communication processing.
    5 The processes shown in figure 6 can be changed, deleted or replaced according to the real need, and all these modifications fall within the scope of the present invention.
    The communication processing provided in this embodiment of the present invention can include one or multiple of the following: data processing, joint interference management processing, joint resource scheduling processing, joint computing task scheduling processing, multiple processing communication systems of different standards, joint processing of multiple communication systems of different standards, and joint control by a working mode or an on-off state of the remote picocell radio unit and / or the band unit base and picocell radio.
    In this embodiment of the present invention, a local computing layer is added between the centralized computing layer and the radio transceiver layer and is responsible for all or part of the communication processing of neighboring cells within a certain range. In this way, all processing does not need to be carried out by a centralized computing node that is distant, which saves network bandwidth and improves the use of system resources.
    Ordinary callers in the art may be aware that units and algorithm steps provided in each modality exposed here can be implemented by electronic helium, computer software or a combination thereof. For the description of the interchangeability between hardware and software, the components and stages of each mociality are already described in the preceding descriptions according to the communalities of function. Whether these functions are performed by hardware or software depends on specific applications and design restrictions of technical solutions. Those skilled in the art can implement the functions described for each specific application by using different methods, but this implementation should not be deemed to deviate from the scope of the present invention.
    It is understandable by those skilled in the art that the specific work processes of the preceding method shown in figure 5 and figure 6 can refer to corresponding processes provided in modalities of the communication system. No repeated description is provided here.
    In various embodiments of the present invention, it is understandable that the systenia, apparatus and method of the present invention can be implemented in other ways. For example, the device above is for illustration only. For example, the division of units is only based on logical functions. In actual irrimplementation, other ways of splitting may be available, for example, multiple units or components.es may be 'combined or integrated with another system, or some features may be ignored or may not be executed. In addition, the mutual coupling shown or discussed or a direct coupling or a communication connection is implemented through some interfaces. Indirect coupling or communication connection between the devices or units can be implemented in electrical, mechanical or other ways.
    Units that are described as separate parts can be physically separated or not. The parts that are displayed as units may or may not be physical units.
    That is, the parts can be located in one place or distributed over multiple network elements. Some or all of the units can be selected according to the actual need for obtaining the purpose of the technical solutions provided in the modalities of the present invention.
    In addition, each function unit in the embodiments of the present invention can be integrated into a processing unit, or can exist independently, or two or more units are integrated into one unit. The integrated unit can be realized in the form of hardware or a software function unit.
    If the integrated unit is realized in the form of a software function unit and is sold or used as a separate product, the integrated unit can be stored in a storage medium that can be read on a computer. Based on this understanding, the essence of the technical solutions of the present invention or the contributions of the prior art, or all or part of the technical solutions can be realized as a software product. The computer software product is stored in a storage medium, and includes several instructions that will allow a computer device (for example, a personal computer, a server or a network device) to perform the methods provided in the present invention. · The preceding storage medium can be any medium that can store computer messages, 5 such as a USB disk, a removable hard disk, a read-only memory (ROM, read-only memory), a random access memory { RAM, random access memory), a magnetic disk or a CD-ROM.
    The above descriptions are merely exemplary embodiments of the present invention, but are not intended to limit the scope of the present invention. Any equivalent modification or replacement may be made by those skilled in the art, without departing from the spirit and principle of the present invention, should fall within the scope of the present invention. Therefore, the scope of the present invention is subject to the appended claims.
    权利要求:
    Claims (21)
    [1]
    1. Communication system, characterized by the fact that it comprises: a radio transceiver layer, comprising 5 or multiple combinations of radio transceiver node, in which a radio transceiver node in each combination of radio transceiver node The radio comprises at least one type of that of a macrocell radio unit, a remote picocell radio unit, and a baseband and picocell radio unit; an iocal computing layer, comprising one or multiple local computing nodes, where each local computing node is connected to the radio transceiver nodes in one or multiple neighboring radio transceiver combinations and configured to perform all of the processing a communication or a first communication processing part of a cell corresponding to a radio transceiver node combination connected to the local computing node; and a centralized computing layer, comprising one or more centralized computing nodes, where each centralized computing node is connected to a multiple local computing nodes in the local computer layer, and configured "to perform a second part of communication processing of a cell corresponding to a radio transceiver node combination connected to one or multiple local computing nodes, if the opposite flow bandwidth performs the first communication processing part, in which all the processing communication comprises
    ± 0 .the first part of communication processing and the second part of communication processing.
    [2]
    2. Communication system, according to claim 1, characterized in that each centralized computing node 5 is connected to one or multiple local computing nodes in the local computing layer comprising the following: q centralized computing node is connected to one or multiple local computer nodes directly; or the centralized computing node is connected to one or multiple local computing nodes via one or multiple intermediate computing nodes, where each intermediate computing node is configured to perform a corresponding third urinary cell communication processing bar to a radio transceiver node in a radio transceiver node combination connected to the local computing node connected to the intermediate computing node, if the local computing node performs the first communication processing part; where all communication processing comprises - the third part of communication processing.
    [3]
    3. Communication system, according to claim 1 or 2, characterized by the fact that: the base band and picocell radio unit is configured to perform a fourth part of the communication processing of a cell corresponding to the unit of baseband and picocell radio, if the local computing node performs the first part of communication processing; or the centralized computing node is configured for the
    4K transfer, through a task scheduling, of a fifth part of the communication processing to other centralized computer nodes for execution, in which the entire communication process comprises 5 to the fourth part of the communication process and / 'or the fifth part of communication processing.
    [4]
    4. Communication system according to claim 2, characterized by the fact that: the connections between the macrocell radio unit and lCl the local computing node, between the remote picocell radio unit and the local computing unit, between the macrocell radio unit and the centralized computing unit, and between the remote picocell radio unit and the centralized computing node are implemented through a class 1 interface, where the class 1 interface is configured for the transmission of baseband data and control status messages; the connections between the base band and picocell radio unit and the local computing node, between the base band and picocell radio unit and the centralized computing node, between the local computing node and the centralized computing node , between the local computing node and the intermediate computing node, between the intermediate computing nodes and upper and lower layers, and between the centralized computing nodes being implemented through a class 2 interface, in which the class 2 interface it is configured for the transmission of baseband data, data packets and control status messages; and the centralized computing node and a core network are connected via a class 3 interface, where
    The class 3 interface is configured for the transmission of data packets and control status messages.
    [5]
    5. Communication system, according to claim 2, characterized in that the communication processing comprises a data processing; the local computing node divides the data for the differentiation of data that needs to be processed by the local computing node and data that does not need to be processed by the local computing nodes and / or aggregates data that has undergone communication processing; the intermediary computation node divides data for the differentiation of data that needs to be processed by the intermediate computing node and data that does not need to be processed 'by the intermediate computing node; and the centralized computing node divides data for the differentiation of data that needs to be processed by the centralized computing node and data that does not need to be processed by the centralized computing nodes and / or aggregates data that has undergone communication processing.
    [6]
    6. Communication system, according to claim 2, characterized by the fact that the corriunicação processing comprises a joint interference management processing; the local computing node preferably performs communication processing from user equipment without visible interference in a cell corresponding to a radio transceiver node in a combination of radio transceiver connected to the local computing node or a processing interfering equipment
    4 r. user who suffers only interference from other radio transceiver nodes in a radio transceiver node combination connected to the local computing node; the preferred intermediate computing node 5 performs an interference processing of a user equipment in a cell corresponding to a radio transceiver node in a radio transceiver node correspondence connected to a lower layer intermediary computing node or a node of local computing connected to the intermediate corriputation node, in which the user equipment is interfered by a cell corresponding to a radio transceiver node in a combination of radio transceiver node connected to other intermediate layer computing nodes lower or a local computing node connected to the intermediate computing node; and Çl centralized computing node preferably performs interference processing from a user equipment in a cell corresponding to a radio transceiver node errt a radio transceiver combination connected to an intermediary low-level computing node or a node local computing node connected to the centralized computing node, where c) user equipment is interfered by a cell corresponding to a radio transceiver node in a combination of radio transceiver node connected to other lower layer intermediate computing nodes or a local computing node connected to the centralized computing node.
    [7]
    7. Communication system, according to
    4 L claim 2, characterized by the fact that Cf communication processing comprises a joint resource programming process: the local computing node executes a resource programming between cells corresponding to a radio transceiver node in a transceiver node combination. radio connected to the local computing node; the intermediate computing node executing a resource prognaration between cells corresponding to a radio transceiver node in a combination of radio transceiver node connected to the intermediate computing node; and the centralized computing node executes resource programming between cells corresponding to a radio transceiver node in a radio transceiver combination connected to the centralized computing node.
    [8]
    8. Communication system, according to claim 7, characterized by the fact that: the resources programmed by the local computing node, by the intermediate computing node and by the centralized computing node are configured differently; or a top-tier computing node to perform resource scheduling preferably.
    [9]
    9. Communication system, according to claim 2, characterized by the fact that 'a connection between radio transceiver node in the combination of radio transceiver node and local computing node, between the local computer node and the intermediate computing node, or between the intermediate computing nodes in upper and lower carriers, is implemented through a fiber, a digital subscriber line, a microwave link or an electrical power cable.
    [10]
    10. Communication system according to claim 9, characterized by the fact that a means of connection between nodes is determined, based on a node's computing capacity, an internal distance, an internal transmission bandwidth requirement and / or an internal transmission delay requirement.
    [11]
    ll. Communication system, according to claim 2, characterized by the fact that the communication processing comprises a joint computing task programming processing; and a computing task be mutually transferred, according to computing loads, computing capacities, transmission bandwidth and transmission delays, between the local computing node and the intermediate computing node connected to the local computing node, between intermediate computing nodes connected in upper and lower layers, between the intermediate computing node and the centralized computing node connected to the intermediary cornput node, and between interconnected centralized computing nodes.
    [12]
    12. Communication system, according to claim 11, characterized by the fact that: a computing node schedules the transfer of the computing task, based on requests from other computing nodes; or a compute node on the top layer to schedule the transfer of the compute task.
    8 / 11K q
    [13]
    13. Communication system according to claim 2, characterized in that the radio transceiver node combination comprises radio transceiver nodes supporting multiple patterns and the communication processing comprises the processing of multiple pattern communication systems and / or a joint processing of multiple communication systems of different standards.
    [14]
    14. Communication system according to any one of claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 or 13, characterized in that the connection of each cornputation node local to one or multiple combinations of neighboring radio transceiver node comprise: determining, according to network configurations, 5 of a radio transceiver node in a combination of radio transceiver node connected to the local computing node the number of connected radio transceiver combinations.
    [15]
    15. Cornering system according to claim 1, characterized by the fact that the local computer node is connected to a radio transcription node in a radio transcription node combination, in which the combination of the 'transcription node' radio unit comprises a macrocell radio unit co-located with the local computing node, a remote picocell radio unit in coverage of the macrocell radio unit, and / or a baseband and picocell radio unit.
    [16]
    16. Communication system, according to claim 1, characterized by the fact that the local cornputation node is connected to a k ¢ radio transcription node in a radio transcription node combination, in which the node Radio transceiver system comprises a remote picocell radio unit and a baseband unit. and picocell radio in a specific area, 5 where the specific area is determined according to the network settings.
    [17]
    17. Communication system according to claim 16, characterized in that the communication processing comprises a joint control over a working mode and an on-off state of the remote picocell radio unit and / or a remote control unit. baseband and picocell radio in the radio transceiver node combination.
    [18]
    18 '. Method for managing a 'communication system', in which the communication system comprises a layer of radio transceiver, a layer of local computing and a centralized layer of computation, in which the layer of radio transception comprises one or multiple radio transceiver node combinations, wherein a radio transceiver node in each radio transceiver combination includes at least one type of the following: a macrocell radio unit, a remote picocell radio unit, and a base band and picocell radio unit: the local computing layer comprises one or multiple local computing nodes, where each local computing node is connected to the tran nodes, "radio reception in one or multiple radio transceiver node combinations, and the centralized computing layer comprises one or multiple centralized computing nodes, where each centralized computing node is ke connected to one or multiple network nodes local computing at the local computing layer; and the method is characterized by the fact that it comprises: the execution, by the local computing node, of all the 5 processing or of a first communication processing part of a cell corresponding to a radio transception node erodes a combination of radio transception connected to the local computing node; and the execution, by the centralized computing node, of a second communication processing part of a cell corresponding to a radio transceiver node in a radio transceiver combination connected to one or multiple local computing nodes, if the Local computing node performs the first communication processing part, where all communication processing includes the first communication processing part and the second communication processing part.
    [19]
    19. Method, according to claim 18, characterized in that the centralized computing node is connected to the local computing node through one or multiple intermediate computing nodes; and the method will further understand: the execution, by the intermediate cornputation node, of a third communication processing part of a cell corresponding to a radio transcription node in a combination of the radio transcription node connected to the node local computing node connected to the intermediary computing node, if the local computing node performs the first part of the communication process,
    K 0 in which all communication processing comprises the third. communication processing part.
    [20]
    20. Method according to claim 18 or 19, characterized by the fact that it further comprises: 5 the execution, by the base band unit and picocell radio, of a fourth processing part. communication of a cell corresponding to the base band unit and picocell radio, if the local computing node performs the first part of the communication processing; or the transfer, by the centralized computing node, through a task schedule, of a fifth part of communication processing to other centralized corngutation nodes for execution, in which all the communication processing comprises the fourth part of communication processing and / or the fifth part of communication processing.
    [21]
    21. Method according to any of claims 18, 19 or 20, characterized in that the communication processing comprises one or multiple of the following: data processing, joint interference management processing, joint resource programming processing , joint computing task programming processing, processing of multiple communication systems of different standards, joint processing of multiple communication systems of different standards, and joint control by a working mode or a link state disconnects from the remote picocell radio unit and / or the base band and picocell radio unit.
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    同族专利:
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    法律状态:
    2020-11-24| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-12-01| B15K| Others concerning applications: alteration of classification|Free format text: A CLASSIFICACAO ANTERIOR ERA: H04W 88/08 Ipc: H04W 88/08 (2009.01), H04W 24/02 (2009.01) |
    2020-12-01| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-12-07| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    2022-02-01| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/CN2011/074184|WO2011127855A2|2011-05-17|2011-05-17|Communication system and management method thereof|
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