CN103108011A - Home base station system and communication method thereof - Google Patents

Abstract

The invention discloses a home base station system and a communication method thereof. After receiving a radio frequency signal sent by a user terminal, a plurality of front-end modules convert the radio frequency signal into uplink data and send it to a first cloud selector; The data is processed and sent to the second cloud selector; the second cloud selector processes the uplink data sent by the first cloud selector and sends it to the gateway. Since the processing processes of the physical layer and the upper layer in the home base station system provided by the embodiment of the present invention exist independently, using the first cloud selector or the second cloud selector can dynamically allocate the physical layer entity or the upper layer entity to work, so that the physical layer entity or the upper layer entity can be dynamically deployed at any time. The data of any user terminal is processed, and the specific processing entity can change dynamically, and different upper-layer entities can also process different services of the same user terminal at the same time, fully realizing the resource load balance of the system.

Description

A home base station system and communication method thereof

technical field

The present invention relates to the technical field of communication, in particular to a home base station system and a communication method thereof.

Background technique

At present, Femto femto base stations are based on IP architecture, relying on existing digital subscriber line (DSL, Digital Subscriber Line), cable TV cable (Cable) or optical fiber to access the core network of mobile operators. Existing Femto base station as shown in Figure 1, generally, a Femto base station serves a microcell, the front-end processing (such as power amplifier, radio frequency, analog-to-digital conversion etc.), physical layer processing (Layer1 layer) and upper layer ( Layer 2 and Layer 3) are all processed in the same device, and the Femto base station is connected to the Femto gateway through IP to exchange signaling and data.

For traditional distributed Femto base stations, after a user terminal UE is allocated to an entity (Femto base station or base station controller) for processing, the location where the UE is processed is fixed, and the processing capabilities of other entity resources cannot be shared dynamically. The dynamic capacity of the distributed Femto base station system is reduced. Moreover, in this Femto base station system, the physical layer entity in a base station device can only provide services for the upper layer entity in the same base station device, and similarly, the upper layer entity can only obtain the physical layer service in the base station device. In this state, the following problems are likely to arise:

In the multi-home base station network, especially the enterprise-level Femto base station network, it is easy to cause the busy cell to be very busy. Due to the exhaustion of resources, the UE accessing the cell cannot receive the corresponding quality of service, and may even be unable to connect to the cell. An idle cell is very idle, causing an imbalance of resources between the cells, and also affecting the user experience;

Each Femto base station cannot share the information of the UE. When the shared information is needed (such as handover), it must be transferred through the core network, which invisibly increases the delay of handover and the burden of the core network;

It is inconvenient to expand the capacity after Femto base stations are networked. Each expansion requires on-site equipment upgrades. When there are a large number of Femto base stations, the cost of secondary expansion is huge; similarly, when the site is withdrawn, the removed equipment cannot continue Provide services;

When a Femto base station fails due to an unrecoverable physical layer or upper layer failure, it cannot continue to provide services to users in the corresponding cell.

Contents of the invention

Embodiments of the present invention provide a home base station system and a communication method thereof, which are used to overcome various disadvantages caused by existing home base station systems that can only handle fixed user terminals.

An embodiment of the present invention provides a home base station system, including: multiple front-end modules, a first cloud selector, a physical layer entity pool containing multiple physical layer entities, a second cloud selector, and an upper layer containing multiple upper layer entities Entity pool, where:

Each front-end module is used to receive the radio frequency signal sent by the user terminal, convert the radio frequency signal into uplink data and send it to the first cloud selector; or convert the downlink data sent by the first cloud selector into radio frequency signal and send it to the user terminal;

The first cloud selector is configured to hand over the uplink data sent by the front-end module to a physical layer entity selected from the physical layer entity pool according to the first setting information for processing, and send the selected physical layer to the second cloud selector The uplink data processed by the entity; or the downlink data sent by the second cloud selector is processed by a physical layer entity selected from the physical layer entity pool according to the first setting information, and the selected physical layer is sent to the front-end module The downlink data processed by the entity; the first setting information includes resource load parameters in the physical layer entity pool and/or the format of the front-end module;

The second cloud selector is configured to transfer the uplink data sent by the first cloud selector to an upper-level entity selected from the upper-level entity pool according to the second setting information for processing, and send the uplink data processed by the selected upper-level entity to the gateway ; or receive the downlink data sent by the gateway and hand it over to select an upper-level entity from the upper-level entity pool for processing according to the second setting information, and send the downlink data processed by the selected upper-level entity to the first cloud selector; The second setting information is resource load parameters in the upper-layer entity pool.

An embodiment of the present invention also provides a communication method using the home base station system, including:

Each front-end module receives the radio frequency signal sent by the user terminal, converts the radio frequency signal into uplink data and sends it to the first cloud selector; or receives the downlink data sent by the first cloud selector, and converts the downlink data into radio frequency signal sent to the user terminal;

The first cloud selector hands the uplink data sent by the front-end module to a physical layer entity selected from the physical layer entity pool according to the first setting information for processing, and sends the selected physical layer entity to the second cloud selector after processing or hand over the downlink data sent by the second cloud selector to a physical layer entity selected from the physical layer entity pool according to the first setting information for processing, and send the selected physical layer entity to the front-end module for processing the downlink data; the first setting information includes resource load parameters in the physical layer entity pool and/or the format of the front-end module;

The second cloud selector transfers the uplink data sent by the first cloud selector to select an upper-level entity from the upper-level entity pool according to the second setting information for processing, and sends the uplink data processed by the selected upper-level entity to the gateway; or receive The downlink data sent by the gateway is handed over to an upper-level entity selected from the upper-level entity pool for processing according to the second setting information, and the downlink data processed by the selected upper-level entity is sent to the first cloud selector; the second setting The information is resource load parameters in the upper entity pool.

An embodiment of the present invention provides another home base station system, including: multiple front-end modules, multiple physical layer entities corresponding to the multiple front-end modules, a cloud selector, and an upper-layer entity pool containing multiple upper-layer entities, in:

Each front-end module is used to receive the radio frequency signal sent by the user end, convert the radio frequency signal into uplink data and send it to the corresponding physical layer entity; or receive the downlink data sent by the corresponding physical layer entity, and convert the downlink data into Send the radio frequency signal to the user terminal;

A plurality of physical layer entities, each physical layer entity is used to receive the uplink data sent by its corresponding front-end module, process the uplink data and send it to the cloud selector; or receive the downlink data sent by the cloud selector , sending the downlink data to the corresponding front-end module after processing;

The cloud selector is used to select an upper-layer entity from the upper-layer entity pool for processing according to the resource load parameter information in the upper-layer entity pool for the uplink data sent by each physical layer entity, and send the selected upper-layer entity to the gateway for processing or receive the downlink data sent by the gateway, select an upper-level entity from the upper-level entity pool for processing according to the resource load parameter information in the upper-level entity pool, and send the downlink data processed by the selected upper-level entity to A physical layer entity serving the user terminal receiving the downlink data.

An embodiment of the present invention also provides a communication method using the home base station system, including:

Each front-end module receives the radio frequency signal sent by the user end, converts the radio frequency signal into uplink data and sends it to the corresponding physical layer entity; or receives the downlink data sent by the corresponding physical layer entity, and converts the downlink data into radio frequency signal sent to the user terminal;

Each physical layer entity receives the uplink data sent by its corresponding front-end module, processes the uplink data and sends it to the cloud selector; or receives the downlink data sent by the cloud selector, and processes the downlink data Send to the corresponding front-end module;

For the uplink data sent by each physical layer entity, the cloud selector selects an upper-level entity from the upper-level entity pool for processing according to the resource load parameter information in the upper-level entity pool, and sends the uplink data processed by the selected upper-level entity to the gateway. data; or receive the downlink data sent by the gateway, select an upper-level entity from the upper-level entity pool for processing according to the resource load parameter information in the upper-level entity pool, and send the downlink data processed by the selected upper-level entity to the server for receiving the A physical layer entity serving user terminals for downlink data.

The beneficial effects of the embodiments of the present invention include:

In the home base station system and its communication method provided by the embodiments of the present invention, multiple front-end modules convert the radio frequency signal into uplink data after receiving the radio frequency signal sent by the user terminal, and then send it to the first cloud selector or its corresponding physical layer entity; the first cloud selector or physical layer entity processes the uplink data and sends it to the second cloud selector; the second cloud selector processes the uplink data sent by the first cloud selector or physical layer entity and sends it to the gateway. In the home base station system and its communication method provided by the embodiments of the present invention, the processing processes of the physical layer and the upper layer exist independently, and the UE is no longer fixed to be processed by a certain entity, and the first cloud selector or the second cloud selector can be used. Dynamically allocate multiple physical layer entities or multiple upper-layer entities to process uplink/downlink data, so that when the physical entity or upper-layer entity corresponding to a cell is overloaded, the cloud selector can be used to flexibly deploy the system. Other physical entities or upper-layer entities provide services to fully achieve load balancing of system resources, so that any user terminal data can be processed in a timely manner at any time, and the user's network experience is improved.

Description of drawings

FIG. 1 is a transmission topology diagram of an existing home base station network;

Fig. 2 is one of the schematic structural diagrams of the home base station system provided by the embodiment of the present invention;

Fig. 3 is one of the schematic diagrams of the home base station system networking provided by the embodiment of the present invention;

FIG. 4 is the second schematic diagram of the home base station system networking provided by the embodiment of the present invention;

FIG. 5 is the third schematic diagram of the home base station system networking provided by the embodiment of the present invention;

Fig. 6 is one of the flow charts of communication using the home base station system provided by the embodiment of the present invention;

FIG. 7 is the second structural schematic diagram of the home base station system provided by the embodiment of the present invention;

FIG. 8 is a fourth schematic diagram of a home base station system networking provided by an embodiment of the present invention;

FIG. 9 is the second flow chart of communication using the home base station system provided by the embodiment of the present invention.

Detailed ways

The specific implementation manners of the home base station system and the communication method thereof provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

A home base station system provided by an embodiment of the present invention, as shown in FIG. 2 , includes: multiple front-end modules 201, a first cloud selector 202, a physical layer entity pool 203 including multiple physical layer 204 and an upper-level entity pool 205 comprising a plurality of upper-level entities, wherein:

Each front-end module 201 is used to receive the radio frequency signal sent by the user terminal 101, convert the radio frequency signal into uplink data and send it to the first cloud selector 202; or receive the downlink data sent by the first cloud selector 202, and convert the downlink data After being converted into a radio frequency signal, it is sent to the user terminal 101;

The first cloud selector 202 is configured to receive the uplink data sent by the front-end module 201, select a physical layer entity from the physical layer entity pool 203 to process the uplink data sent by the front-end module 201 according to the first setting information, and select the uplink data sent by the front-end module 201 to the second cloud The device 204 sends the uplink data processed by the selected physical layer entity; or receives the downlink data sent by the second cloud selector 204, and selects a physical layer entity from the physical layer entity pool 203 according to the first setting information to process the second cloud The downlink data sent by the selector 204 sends to the front-end module 201 the downlink data processed by the selected physical layer entity; the first setting information includes but not limited to resource load parameters in the physical layer entity pool and/or the format of the front-end module;

The second cloud selector 204 is configured to receive the uplink data sent by the first cloud selector 202, select an upper-level entity from the upper-level entity pool 205 to process the uplink data sent by the first cloud selector 202 according to the second setting information, and send The gateway 102 sends the uplink data processed by the selected upper-level entity; or receives the downlink data sent by the gateway 102, and selects an upper-level entity from the upper-level entity pool 205 to process the downlink data sent by the gateway 102 according to the second setting information, and sends to the first The cloud selector 202 sends the downlink data processed by the selected upper-layer entity; the second setting information is the resource load parameter in the upper-layer entity pool.

In the above home base station system, the physical layer and the upper layer processing process exist independently, and the physical layer entity in the physical layer entity pool 203 or the physical layer entity in the upper layer entity pool 205 can be dynamically allocated by using the first cloud selector 202 or the second cloud selector 204 The upper-layer entity works, so that it can process the data of any user terminal at any time, and the specific processing entity can be changed dynamically, and different upper-layer entities can also process different services of the same user terminal at the same time, fully realizing the resource of the system load balancing.

Preferably, front-end modules and upper-layer entities of different standards can be configured in the above-mentioned home base station system, such as GSM, WCDMA, TD-SCDMA, CDMA2000, and LTE, so that the home base station system can simultaneously process the data sent by the user terminal. Signals of different standards constitute a heterogeneous base station system.

Preferably, the first cloud selector 202 in the above system is also used to monitor the status of each physical layer entity in the physical layer entity pool 203, and when a physical layer entity fails, deploy a normal physical layer entity to replace the faulty physical layer Entity work; and when the system expands or reduces capacity, add or delete physical layer entities in the physical layer entity pool 203 .

Preferably, the second cloud selector 204 in the above-mentioned system is also used to monitor the status of each upper-level entity in the upper-level entity pool 205, and when an upper-level entity fails, deploy a normal upper-level entity to replace the failed upper-level entity to work; and when the system When expanding or reducing capacity, add or delete upper-layer entities in the upper-layer entity pool 205 .

Preferably, the home base station system provided by the embodiment of the present invention is shown in FIG. 2, and may further include: a gateway interface entity 206, configured to receive uplink data from the second cloud selector 204 and forward it to the gateway 102, or from the gateway 102 receives the downlink data and forwards it to the second cloud selector 204 .

Preferably, the home base station system provided by the embodiment of the present invention, as shown in FIG. 2 , may further include: a link database 207 for storing the configuration information of the user terminal 101 at the physical layer, the physical layer entity pool 203 and the front end Configuration information of the module 201 , link parameters of the user terminal 101 and processing capability information of each physical layer entity in the physical layer entity pool 203 .

Preferably, the home base station system provided by the embodiment of the present invention, as shown in FIG. 2 , may further include: a wireless resource library 208 for storing processing capability information of each upper-layer entity, wireless resource information in the system, user The radio resource usage information of the terminal 101 and the radio information parameters of the user terminal 101 (such as the cell to which the user terminal belongs, spreading factor, channelization code, uplink scrambling code, service QoS information, channel configuration, user terminal capability, and service transmission format, etc. ). As long as the information related to the user terminal can be stored in the wireless resource library 208, details will not be repeated here.

The first cloud selector 202 in the home base station system provided by the embodiment of the present invention can flexibly allocate each physical layer entity in the physical layer entity pool 203, and the second cloud selector 204 can flexibly allocate the upper layer entities in the upper layer entity pool 205 The entity processes the data and balances the load of each cell; when the physical layer entity or upper layer entity corresponding to a certain cell is overloaded, the first cloud selector 202 or the second cloud selector 204 can dynamically allocate a new physical layer entity and, when the system capacity needs to be changed, the first cloud selector 202 can add or delete physical layer entities in the physical entity pool 203, and the second cloud selector 204 can be in the upper entity pool 205 Adding or deleting upper-level entities can easily change the system capacity.

In addition, the first cloud selector 202 in the home base station system provided by the embodiment of the present invention monitors the physical layer entity in real time, and the second cloud selector 204 monitors the upper layer entity in real time. Once the working physical layer entity or the upper layer entity fails, The first cloud selector 202 or the second cloud selector 204 can allocate other physical layer entities or upper layer entities to replace the faulty entity, and each parameter of the user terminal has been stored in the link database 207 and the wireless resource library 208, Therefore, it is also guaranteed that any entity in the physical layer entity pool 203 and the upper layer entity pool 205 can replace the failed entity at any time and continue to work.

In addition, compared to the traditional home base station user terminal that needs to pass through the core network and needs the user terminal to participate in the handover process when switching cells, in the system provided by the embodiment of the present invention, since the link resource library 207 and the wireless resource library 208 are for all physical layer entities Share all the configuration information and link information of the user terminal with the upper layer entity, therefore, the user terminal does not need to participate when the user terminal switches cells, and the core network can participate in a small amount or not participate in the handover process, which optimizes the service for users .

Specifically, when the home base station system provided by the embodiment of the present invention is used to work, the processing process in the uplink direction (user terminal→home base station system→gateway) may include the following flow:

The front-end module 201 receives the radio frequency signal sent by the user terminal 101, converts the radio frequency signal into uplink data and sends it to the first cloud selector 202 through conventional processing such as power amplification, low noise amplification, and analog-to-digital conversion;

After the first cloud selector 202 receives the uplink data sent by the front-end module, according to the setting information, such as the current resource load in the physical layer entity pool 203 and the standard of the front-end module from which the uplink data comes, it allocates the physical layer entity pool A physical layer entity of , processes the uplink data;

The physical layer entity queries the link database 207, obtains the information corresponding to the front-end module 201 of the uplink data, such as code resource information, performs the processing specified by the 3GPP standard on the uplink data, and identifies whether the uplink data is the user UE that accesses for the first time , and send the processed uplink data to the first cloud selector 202;

After receiving the uplink data from the physical layer entity, the first cloud selector 202 sends the uplink data to the second cloud selector 204;

After the second cloud selector 204 receives the uplink data sent by the first to cloud selector 202, it allocates an upper-level entity in the upper-level entity pool 205 to process the uplink data according to the load condition in the upper-level entity pool 205;

The upper layer entity knows whether the user is accessing the system for the first time according to the uplink data transmission channel type (RACH or DCH), and if so, processes the uplink data according to the 3GPP specification, and records all parameter information of the user terminal during the period to the wireless resource library 208; If not, query the parameter information of the user terminal in the wireless resource library, and use the parameter information to process the uplink data defined in the 3GPP specification, and send the processed upper layer data to the second cloud processor 204 for data forwarding;

The second cloud processor 204 forwards the uplink data to the gateway interface entity 206;

The gateway interface entity 206 receives the uplink data sent by the second cloud selector 204, calls the information about the user terminal in the wireless resource library 208, processes the uplink data according to the 3GPP specification, and sends it to the gateway 102, and stores it in the wireless resource library 208. Update relevant parameter information of the user terminal.

Specifically, when the home base station system provided by the embodiment of the present invention is used to work, the processing flow in the downlink direction (gateway→home base station system→user terminal) is similar to the above-mentioned processing flow in the uplink direction, so details are not repeated here.

The above-mentioned home base station system provided by the embodiment of the present invention has flexible network deployment. According to different requirements, the physical layer entity pool and the first cloud selector can be deployed in the cloud network device or client, multiple front-end modules and physical layer entity pools The physical layer entities in the network may exist in the form of one-to-many, many-to-one or many-to-many. The following example illustrates the networking form of the home base station system provided by the embodiment of the present invention.

Example one:

The networking form shown in Figure 3, wherein, a plurality of front-end modules 201, the first cloud selector 202, the physical layer entity pool 203 and the link database 207 in the home base station system are deployed on the client, and the second cloud selector 204, the upper layer entity pool 205, the wireless resource library 208, and the gateway interface entity 206 are deployed in the cloud network device.

This networking method makes full use of physical resources and is suitable for deployment in large-capacity cells. At the same time, because the physical layer is deployed on the client side, it can quickly respond to high-speed services of user terminals, such as high-speed downlink packet access (HSDPA, High Speed Downlink Packet Access), so this networking method is also applicable to the situation where the distance between the cloud and the client is long.

Example two:

The networking mode shown in Figure 4, wherein, multiple front-end modules 201 in the home base station system are deployed on the client; the first cloud selector 202, the physical layer entity pool 203, the link database 207, and the second cloud selector 204, the upper entity pool 205, the wireless resource library 208, and the gateway interface entity 209 are deployed in the cloud network device, and the front-end module 201 of the client and the first cloud selector 202 of the cloud can be connected through optical fibers.

This networking method is also suitable for deployment in large-capacity communities, and because the front-end module 201 is deployed independently on the client side, the deployment cost on the client side can be reduced, so this networking method is also suitable for the cloud and the client side are relatively close Case.

Example three:

In the networking mode shown in FIG. 5, the above-mentioned home base station systems provided by the two embodiments of the present invention are cascaded together to form a large system, wherein the first cloud selector 202 and the second cloud selector 202 in the two systems The selector 204, the link database 207, and the wireless resource library 208 are connected to each other. Through the connected first cloud selector 202 and the second cloud selector 204, they can use each other's resources to serve the user terminal. At the same time, through The wireless resource library 207 and the link database 208 are interconnected to ensure correct acquisition and maintenance of user terminal configuration parameter information when the network shares resources.

The networking method of the cascaded home base station system is suitable for the construction of large-scale, large-capacity, and resource optimization deployment. Obviously, more than two home base station systems can be cascaded according to actual needs.

Based on the same inventive concept, the embodiment of the present invention also provides a communication method using the aforementioned home base station system. Since the problem-solving principle of this method is similar to that of the aforementioned home base station system, the implementation of this method can refer to the implementation of the system. Repeated points will not be repeated.

A communication method using the aforementioned home base station system provided by an embodiment of the present invention, as shown in FIG. 6 , may include the following steps:

S601. Each front-end module receives the radio frequency signal sent by the user terminal, converts the radio frequency signal into uplink data and sends it to the first cloud selector; or receives the downlink data sent by the first cloud selector, and converts the downlink data into radio frequency signal sent to the user terminal;

S602. The first cloud selector hands over the uplink data sent by the front-end module to a physical layer entity selected from the physical layer entity pool according to the first setting information for processing, and sends the selected physical layer entity to the second cloud selector for processing or hand over the downlink data sent by the second cloud selector to a physical layer entity selected from the physical layer entity pool according to the first setting information for processing, and send the selected physical layer entity to the front-end module after processing the downlink data; the first setting information includes but not limited to the resource load parameters in the physical layer entity pool and/or the format of the front-end module;

S603. The second cloud selector transfers the uplink data sent by the first cloud selector to an upper-layer entity selected from the upper-layer entity pool according to the second setting information for processing, and sends the uplink data processed by the selected upper-layer entity to the gateway; Or receive the downlink data sent by the gateway and hand it over to select an upper-level entity from the upper-level entity pool for processing according to the second setting information, and send the downlink data processed by the selected upper-level entity to the first cloud selector; the second The second setting information is the resource load parameters in the upper-layer entity pool.

The embodiment of the present invention also provides another home base station system, as shown in FIG. An upper-level entity pool 304 of a plurality of upper-level entities, wherein:

Each front-end module 301 is used to receive the radio frequency signal sent by the user terminal 101, convert the radio frequency signal into uplink data and send it to the corresponding physical layer entity 302; or receive the downlink data sent by the corresponding physical layer entity 302, and convert the downlink data After being converted into a radio frequency signal, it is sent to the user terminal 101;

A plurality of physical layer entities 302 are used to receive uplink data sent by their corresponding front-end modules 301, process the uplink data and send it to the cloud selector 303; or receive downlink data sent by the cloud selector 303, process the downlink data and send Give the corresponding front-end module 301;

The cloud selector 303 is configured to receive the uplink data sent by each physical layer entity 302, and for the uplink data sent by each physical layer entity 302, select from the upper layer entity pool 304 according to the resource load parameter information in the upper layer entity pool 304 An upper-level entity sends to the gateway 102 the uplink data processed by the selected upper-level entity; or receives the downlink data sent by the gateway 102, and selects an upper-level entity from the upper-level entity pool 304 according to the resource load parameter information in the upper-level entity pool 304 , sending the downlink data processed by the selected upper layer entity to the physical layer entity 302 serving the user terminal 101 receiving the downlink data.

Preferably, the cloud selector 303 in the above-mentioned system is also used to monitor the status of each upper-level entity in the upper-level entity pool 304, and when an upper-level entity fails, deploy a normal upper-level entity to replace the failed upper-level entity to work; and when the system expands Or when reducing capacity, add or delete upper-layer entities in the upper-layer entity pool 304 .

Preferably, the above system, as shown in FIG. 7 , may also include: a gateway interface entity 305 for receiving uplink data from the cloud selector 303 and forwarding it to the gateway 102, or receiving downlink data from the gateway 102 and forwarding it to the cloud for selection device 303.

Preferably, as shown in FIG. 7, the above system may further include a wireless resource library 306, which is used to store the processing capability information of each upper-layer entity, wireless resource information in the system, wireless resource usage information of the user terminal 101, and user Wireless information parameters of the terminal 101.

The network deployment manner of the above-mentioned home base station system provided by the embodiment of the present invention is described below with an example.

Example four:

In the networking mode shown in FIG. 8, multiple front-end modules 301 in the home base station system and corresponding physical layer entities 302 are deployed on the client side, and the cloud selector 303, the upper layer entity pool 304, the wireless resource library 306, and The gateway interface entity 305 is deployed in the cloud network device.

In this networking mode, the physical layer entity 302 and the front-end module 301 correspond to each other, which can be one-to-one correspondence as shown in FIG. 8 , or one-to-many correspondence, which is not limited here. This networking mode Physical layer entity resources cannot be dynamically allocated, so it is suitable for situations where the demand for capacity is not high and the load is not heavy.

Based on the same inventive concept, the embodiment of the present invention also provides a communication method using the aforementioned home base station system. Since the problem-solving principle of this method is similar to that of the aforementioned home base station system, the implementation of this method can refer to the implementation of the system. Repeated points will not be repeated.

A communication method using the home base station system provided by an embodiment of the present invention, as shown in FIG. 9 , may include the following steps:

S901. Each front-end module receives the radio frequency signal sent by the user end, converts the radio frequency signal into uplink data and sends it to the corresponding physical layer entity; or receives the downlink data sent by the corresponding physical layer entity, and converts the downlink data into a radio frequency signal and then sent to the user terminal;

S902. Each physical layer entity receives the uplink data sent by its corresponding front-end module, processes the uplink data and sends it to the cloud selector; or receives the downlink data sent by the cloud selector, processes the downlink data and sends it to its corresponding front-end module;

S903. The cloud selector selects an upper-layer entity from the upper-layer entity pool for processing the uplink data sent by each physical layer entity according to the resource load parameter information in the upper-layer entity pool, and sends the uplink data processed by the selected upper-layer entity to the gateway data; or receive the downlink data sent by the gateway, select an upper-level entity from the upper-level entity pool for processing according to the resource load parameter information in the upper-level entity pool, and send the downlink data processed by the selected upper-level entity to the server for receiving the downlink data The physical layer entity served by the user terminal.

In the home base station system and its communication method provided by the embodiments of the present invention, multiple front-end modules convert the radio frequency signal into uplink data after receiving the radio frequency signal sent by the user terminal, and then send it to the first cloud selector or its corresponding physical layer entity; the first cloud selector or physical layer entity processes the uplink data and sends it to the second cloud selector; the second cloud selector processes the uplink data sent by the first cloud selector or physical layer entity and sends it to the gateway. Because the home base station system and its communication method provided by the embodiment of the present invention, the processing process of the physical layer and the upper layer exist independently, the UE is no longer fixed to be processed by a certain entity, and the first cloud selector or the second cloud selector can be used. Dynamically allocate multiple physical layer entities or multiple upper-layer entities to process uplink/downlink data. In this way, when the physical entity or upper-layer entity corresponding to a certain cell is overloaded, the cloud selector can be used to flexibly deploy the system. Other physical entities or upper-layer entities provide services to fully achieve load balancing of system resources, so that any user terminal data can be processed in a timely manner at any time, and the user's network experience is improved.

Further, in the embodiment of the present invention, the cloud selector monitors the physical layer entity and the upper layer entity in real time, and once the working physical layer entity or the upper layer entity fails, the cloud selector can deploy other physical layer entities or the upper layer entity to replace the failed entity Work, so that the Femto base station can continue to serve users.

Further, in the embodiment of the present invention, when the system capacity needs to be increased or reduced, the cloud selector can add new entities or delete corresponding entities in the corresponding entity pool, so that the system capacity expansion or reduction becomes more efficient. easy.

Further, in the embodiment of the present invention, since the link resource library and the radio resource library share all configuration information and link information of the user terminal for all physical layer entities and upper layer entities, therefore, when the user terminal switches cells, there is no The participation of the user terminal is required, and the core network can participate in a small amount or no handover process, which optimizes the service to the user.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (15)

1. A home base station system, characterized in that it comprises: a plurality of front-end modules, a first cloud selector, a physical layer entity pool comprising a plurality of physical layer entities, a second cloud selector and an upper layer comprising a plurality of upper layer entities Entity pool, where: Each front-end module is used to receive the radio frequency signal sent by the user terminal, convert the radio frequency signal into uplink data and send it to the first cloud selector; or convert the downlink data sent by the first cloud selector into radio frequency signal and send it to the user terminal; The first cloud selector is configured to hand over the uplink data sent by the front-end module to a physical layer entity selected from the physical layer entity pool according to the first setting information for processing, and send the selected physical layer to the second cloud selector The uplink data processed by the entity; or the downlink data sent by the second cloud selector is processed by a physical layer entity selected from the physical layer entity pool according to the first setting information, and the selected physical layer is sent to the front-end module The downlink data processed by the entity; the first setting information includes resource load parameters in the physical layer entity pool and/or the format of the front-end module; The second cloud selector is configured to transfer the uplink data sent by the first cloud selector to an upper-level entity selected from the upper-level entity pool according to the second setting information for processing, and send the uplink data processed by the selected upper-level entity to the gateway ; or receive the downlink data sent by the gateway and hand it over to select an upper-level entity from the upper-level entity pool for processing according to the second setting information, and send the downlink data processed by the selected upper-level entity to the first cloud selector; The second setting information is resource load parameters in the upper-layer entity pool. 2. The system according to claim 1, wherein the first cloud selector is also used to monitor the status of each physical layer entity in the physical layer entity pool, and when a physical layer entity fails, Allocating normal physical layer entities to work instead of faulty physical layer entities; and adding or deleting physical layer entities in the physical layer entity pool when the system expands or reduces capacity. 3. The system according to claim 1, wherein the second cloud selector is also used to monitor the status of each upper-level entity in the upper-level entity pool, and when an upper-level entity fails, deploy a normal upper-level entity Working instead of the failed upper-layer entity; and adding or deleting a new upper-layer entity in the upper-layer entity pool when the system expands or reduces capacity. 4. The system according to any one of claims 1-3, further comprising: a gateway interface entity, configured to receive uplink data from the second cloud selector and forward it to the gateway, or receive downlink data from the gateway The data is forwarded to the second cloud selector. 5. The system according to claim 4, comprising: a client and a cloud network device, wherein: The client includes: the plurality of front-end modules, the first cloud selector, and the physical layer entity pool; The cloud network device includes: the second cloud selector, the upper layer entity pool, and the gateway interface entity. 6. The system according to claim 5, wherein the client further comprises: a link database, configured to store user terminal configuration information at the physical layer, the physical layer entity pool, and the front-end module Configuration information, link parameters of the user terminal, and processing capability information of each physical layer entity in the physical layer entity pool; The cloud network device further includes: a wireless resource library for storing the processing capability information of each upper entity, wireless resource information in the system, wireless resource usage information of the user terminal, and wireless information parameters of the user terminal. 7. The system according to claim 4, comprising: a client and a cloud network device, wherein: The client includes: the plurality of front-end modules; The cloud network device includes: the first cloud selector, the physical layer entity pool, the second cloud selector, the upper layer entity pool, and the gateway interface entity. 8. The system according to claim 7, wherein the cloud network device further comprises: a link database for storing user terminal configuration information at the physical layer, the physical layer entity pool, and the front-end module Configuration information of the user terminal, link parameters of the user terminal, and processing capability information of each physical layer entity in the physical layer entity pool; and/or The wireless resource library is used to store the processing capability information of each upper layer entity, the wireless resource information in the system, the wireless resource usage information of the user terminal, and the wireless information parameters of the user terminal. 9. A method for communicating using the home base station system according to claim 1, characterized in that it comprises: Each front-end module receives the radio frequency signal sent by the user terminal, converts the radio frequency signal into uplink data and sends it to the first cloud selector; or receives the downlink data sent by the first cloud selector, and converts the downlink data into radio frequency signal sent to the user terminal; The first cloud selector hands the uplink data sent by the front-end module to a physical layer entity selected from the physical layer entity pool according to the first setting information for processing, and sends the selected physical layer entity to the second cloud selector after processing or hand over the downlink data sent by the second cloud selector to a physical layer entity selected from the physical layer entity pool according to the first setting information for processing, and send the selected physical layer entity to the front-end module for processing the downlink data; the first setting information includes resource load parameters in the physical layer entity pool and/or the format of the front-end module; The second cloud selector transfers the uplink data sent by the first cloud selector to select an upper-level entity from the upper-level entity pool according to the second setting information for processing, and sends the uplink data processed by the selected upper-level entity to the gateway; or receive The downlink data sent by the gateway is handed over to an upper-level entity selected from the upper-level entity pool for processing according to the second setting information, and the downlink data processed by the selected upper-level entity is sent to the first cloud selector; the second setting The information is resource load parameters in the upper entity pool. 10. A home base station system, characterized by comprising: multiple front-end modules, multiple physical layer entities corresponding to the multiple front-end modules, a cloud selector, and an upper-layer entity pool containing multiple upper-layer entities, wherein : Each front-end module is used to receive the radio frequency signal sent by the user end, convert the radio frequency signal into uplink data and send it to the corresponding physical layer entity; or receive the downlink data sent by the corresponding physical layer entity, and convert the downlink data into Send the radio frequency signal to the user terminal; A plurality of physical layer entities, each physical layer entity is used to receive the uplink data sent by its corresponding front-end module, process the uplink data and send it to the cloud selector; or receive the downlink data sent by the cloud selector , sending the downlink data to the corresponding front-end module after processing; The cloud selector is used to select an upper-layer entity from the upper-layer entity pool for processing according to the resource load parameter information in the upper-layer entity pool for the uplink data sent by each physical layer entity, and send the selected upper-layer entity to the gateway for processing or receive the downlink data sent by the gateway, select an upper-level entity from the upper-level entity pool for processing according to the resource load parameter information in the upper-level entity pool, and send the downlink data processed by the selected upper-level entity to A physical layer entity serving the user terminal receiving the downlink data. 11. The system according to claim 10, wherein the cloud selector is also used to monitor the status of each upper-level entity in the upper-level entity pool, and when an upper-level entity fails, deploy a normal upper-level entity to replace the fault The upper-layer entity works; and when the system expands or reduces capacity, add or delete the upper-layer entity in the upper-layer entity pool. 12. The system according to claim 10 or 11, further comprising: a gateway interface entity, configured to receive uplink data from the cloud selector and forward it to the gateway, or receive downlink data from the gateway and forward it to the gateway The cloud selector described above. 13. The system according to claim 12, comprising: a client and a cloud network device, wherein: The client includes: multiple front-end modules, and multiple physical layer entities corresponding to the multiple front-end modules; The cloud network device includes: a cloud selector, an upper layer entity pool, and a gateway interface entity. 14. The system according to claim 13, wherein the cloud network device further comprises: a wireless resource library, which is used to store the processing capability information of each upper-layer entity, the wireless resource information in the system, and the wireless resource information of the user terminal. Resource usage information and wireless information parameters of the user terminal. 15. A method for communicating using the home base station system according to claim 10, characterized in that it comprises: Each front-end module receives the radio frequency signal sent by the user end, converts the radio frequency signal into uplink data and sends it to the corresponding physical layer entity; or receives the downlink data sent by the corresponding physical layer entity, and converts the downlink data into radio frequency signal sent to the user terminal; Each physical layer entity receives the uplink data sent by its corresponding front-end module, processes the uplink data and sends it to the cloud selector; or receives the downlink data sent by the cloud selector, and processes the downlink data Send to the corresponding front-end module; For the uplink data sent by each physical layer entity, the cloud selector selects an upper-level entity from the upper-level entity pool for processing according to the resource load parameter information in the upper-level entity pool, and sends the uplink data processed by the selected upper-level entity to the gateway. data; or receive the downlink data sent by the gateway, select an upper-level entity from the upper-level entity pool for processing according to the resource load parameter information in the upper-level entity pool, and send the downlink data processed by the selected upper-level entity to the server for receiving the The physical layer entity served by the user terminal of downlink data.

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