WO2015078021A1

WO2015078021A1 - Data transmission device, communication system and communication method

Info

Publication number: WO2015078021A1
Application number: PCT/CN2013/088257
Authority: WO
Inventors: 王军; 郭晓民
Original assignee: 华为技术有限公司
Priority date: 2013-11-30
Filing date: 2013-11-30
Publication date: 2015-06-04
Also published as: CN103828481A; CN103828481B

Abstract

Provided are a data transmission device, a communication system and a communication method. A specially-produced data transmission device is arranged between neighbours, and after a physical transmission link between a base station of one cell and a base station controller to which the base station belongs breaks down, the data transmission device respectively establishes an air transmission channel with the base stations of the two neighbours and forwards communication data of the two neighbours; a base station controller of the neighbours manages the base station of which the communication link has broken down, and guarantees that the base station of which the communication link has broken down can continue providing communication services to users in the cell. The reliability of a communication network in the condition that the transmission link has broken down is improved, the invention is easy to implement, and at the same time, the maintenance efficiency of devices is improved, and the cost is saved.

Description

Data transmission device, communication system, and communication method

Technical field

The embodiments of the present invention relate to the field of communications technologies, and in particular, to a data transmission device, a communication system, and a communication method.

BACKGROUND In a cellular mobile communication network, a base station mainly plays a relay role, is responsible for wireless transmission, completes wireless and wired conversion, and implements communication and reception of user equipment (UE, user equipment) and related control functions, and each base station The signal coverage area constitutes a cell. The base station is controlled by a base station controller, and one base station controller can manage one or more base stations. The base station controller is mainly responsible for wireless channel management, implementation of call and communication link establishment and removal, and control of handoff of user equipment in the control area. The physical bearer between the base station and the base station controller is generally transmitted by wire. For example, it can be transmitted by optical fiber or microwave. The laying distance is long. Once the transmission link fails to be established or fails in time, the base station and the base station controller cannot be connected. The data transmission eventually causes the base station to fail to provide communication services for user equipments located in the cell. In the prior art, a backup transmission link is usually used to cope with the above transmission link failure, and the backup link needs to use the same material and structure as the original transmission link, and if there is an artificial intentional damage or a natural disaster or the like, The backup data link is most likely to be damaged along with the original data link, with poor reliability and high cost.

Summary of the invention The embodiments of the present invention provide a data transmission device, a communication system, and a communication method, which improve the reliability of data transmission in a scenario where a transmission link between a base station and a base station controller is faulty.

In a first aspect, the present invention provides a data transmission device, which is applied to a scenario in which a transmission link between a first base station and a first base station controller is damaged.

The data transmission device includes

a first receiving unit, configured to receive, by using a first air interface, an uplink packet switching (PS) service sent by the first base station, where the uplink PS service is sent by the first base station according to the first base station Converting uplink communication data to the second base station controller;

The first identifying unit is configured to: identify, by using the uplink identifier information included in the uplink PS service, the first PS service, and determine that the uplink PS service needs to be sent to the second base station; The second air interface forwards the received uplink PS service to the second base station managed by the second base station controller, so that the second base station restores the uplink PS service to the uplink communication data, and then sends the The second base station controller;

and / or,

a second receiving unit, configured to receive, by using the second air interface, a downlink PS service that is sent by the second base station, where the downlink PS service is sent by the second base station to the second base station controller The downlink communication data of the first base station is converted;

The second identifying unit is configured to: identify, by using the downlink identifier information included in the downlink PS service, the downlink PS service, and determine that the downlink PS service needs to be sent to the first base station; a second sending unit: configured to receive the downlink through the first air interface

The PS service is forwarded to the first base station such that the first base station restores the downlink PS traffic to the downlink communication data.

In a first possible implementation manner of the first aspect, the first identifying unit is specifically configured to: according to the Internet protocol header information included in the uplink PS service, subnet related convergence protocol segmentation information, media access control At least one of the layer information to identify the uplink PS service, or,

The second identifying unit is specifically configured to: identify the downlink PS service according to at least one of the Internet protocol header information, the subnet related convergence protocol segmentation information, and the medium access control layer information included in the downlink PS service.

With reference to the first aspect, or the first possible implementation manner of the first aspect, the second possible implementation manner of the first aspect, the uplink communications data includes: configuration data of the first base station;

The downlink communication data includes configuration data of the first base station adjusted by the second base station controller.

With reference to the first aspect or the first possible implementation manner of the first aspect, the third possible implementation manner of the first aspect, the uplink communication data or downlink communication data includes voice data or signaling data.

In a second aspect, an embodiment of the present invention provides a scenario in which a base station is applied to a transmission link failure between the base station and an associated first base station controller, where the base station includes: a first conversion unit: Uplink communication data sent by the base station to the second base station controller to obtain the uplink PS service, where the uplink PS service includes an uplink identification signal Interest rate

Transmitting unit: configured to send, by using a first air interface, the uplink PS service to a data transmission device, where the uplink PS service is forwarded by the data transmission device by using a second air interface to a second device managed by the second base station controller The base station, after the second base station restores the uplink PS service to the uplink communication data, and sends the uplink data to the second base station controller;

and / or,

a receiving unit, configured to receive, by using the first air interface, a downlink PS service that is sent by the data communication device, where the downlink PS service is a downlink communication that is sent by the second base station to the base station according to the second base station controller Data conversion is obtained and sent to the data communication device;

And a second converting unit: configured to restore the downlink PS service to downlink communication data that is sent by the second base station controller to the base station.

In a first possible implementation manner of the second aspect, the uplink identifier information includes at least one of an Internet Protocol header information, a subnet-related convergence protocol segmentation information, and medium access control layer information.

With reference to the first possible implementation manner of the second aspect, the second possible implementation manner of the second aspect, the uplink communications data includes configuration data of the base station;

The downlink communication data includes configuration data of the base station adjusted by the second base station controller;

The base station further includes

Storage unit: Used to save the adjusted configuration data. A third possible implementation manner of the second aspect, the uplink communications data includes voice data or signaling data.

With reference to the second aspect or the third possible implementation manner of the second aspect, the fourth possible implementation manner of the second aspect, the downlink communication data includes: voice data or signaling data;

The sending unit is further configured to send the voice data or signaling data to the user equipment. In a third aspect, an embodiment of the present invention provides a base station, including

a first receiving unit: configured to receive an uplink PS service forwarded by the data transmission device by using the first air interface, where the uplink PS service is sent by the first base station to the second base station controller to which the base station belongs The uplink communication data is converted and sent to the data transmission device;

a transmission link fault between the first base station and the associated first base station controller; a first converting unit: for restoring the uplink PS service to the uplink communication data; and a first sending unit: The uplink communication data obtained by the restoration is sent to the second base station controller;

and / or,

a second receiving unit: configured to receive downlink communication data that is sent by the second base station controller to the first base station;

a second converting unit: configured to convert the downlink communication data into a downlink PS service; and a second sending unit, configured to send, by using the first air interface, a downlink PS service The data transmission device, such that the downlink PS service is sent by the data transmission device to the first base station through a second air interface.

In a first possible implementation manner of the third aspect, the second converting unit is further configured to: convert the downlink communication data into a standard PS service, and add the downlink identifier information in the standard PS service. .

With reference to the first possible implementation manner of the third aspect, the second possible implementation manner of the third aspect,

At least one of Internet Protocol header information, sub-network related convergence protocol segmentation information, and medium access control layer information.

In a third possible implementation manner of the third aspect, the uplink communications data includes configuration data of the first base station;

With reference to the third possible implementation manner of the third aspect, the fourth possible implementation manner of the third aspect, the configuration data includes: carrier resource information allocated by the first base station controller to the first base station And transmitting resource information;

The adjusted configuration data includes: the second base station controller re-allocates carrier resource information and transmission resource information of the first base station.

With reference to the third aspect, or the fourth possible implementation manner of the third aspect, the fifth possible implementation manner of the third aspect, the uplink communications data includes voice data or signaling data.

With reference to the fourth possible implementation manner of the third aspect or the fifth possible implementation manner of the third aspect, the sixth possible implementation manner of the third aspect, the downlink communication data packet Including voice data or signaling data;

The base station further includes: an identifying unit, configured to determine, according to the transmission resource information occupied by the voice data or the signaling data, that the voice data or the signaling data is received by the first base station. In a fourth aspect, the embodiment of the present invention provides a communication system, which includes: a first base station, a second base station, a base station controller to which the second base station belongs, and a data transmission device;

The first base station is configured to convert uplink communication data into an uplink PS service and send the data to the data transmission device through an air interface;

The data transmission device is configured to identify an uplink PS service sent by the first base station and forward the packet to the second base station;

The second base station is configured to receive an uplink PS service forwarded by the data transmission device, and restore the uplink PS service to uplink communication data, and then send the uplink PS service to the second base station controller;

The second base station controller is configured to receive the uplink communication data sent by the second base station;

and / or,

The data transmission device is further configured to: identify a downlink PS service sent by the second base station, and forward the data to the first base station;

The first base station is further configured to receive a downlink PS service forwarded by the data transmission device, and restore the downlink PS service to downlink communication data; The second base station is further configured to receive and identify the downlink communication data that is sent by the base station controller to the first base station, and convert the downlink communication data into the downlink.

The PS service is sent to the data transmission device;

The second base station controller is further configured to send the downlink communication data to the second base station. In a fifth aspect, the embodiment of the present invention provides a communication method, where the transmission link between the first base station and the associated first base station controller is damaged, including:

Receiving, by the data transmission device, the uplink packet switched PS service sent by the first base station by using the first air interface, where the uplink PS service is an uplink communication sent by the first base station to the second base station controller according to the first base station Data conversion is obtained;

The data transmission device identifies the first PS service by using the uplink identifier information included in the uplink PS service, and determines that the uplink PS service needs to be sent to the second base station; the data transmission device passes the second air interface. The received uplink PS service is forwarded to the second base station managed by the second base station controller, so that the second base station restores the uplink PS service to the uplink communication data, and then sends the uplink PS service to the a second base station controller;

and / or,

Receiving, by the data transmission device, the downlink PS service sent by the second base station by using the second air interface, where the downlink PS service is sent by the second base station to the first base station controller Downlink communication data conversion;

The data transmission device uses the downlink identification information included in the downlink PS service to identify Determining the downlink PS service, determining that the downlink PS service needs to be sent to the first base station; and the data transmission device receiving the downlink by using the first air interface

In a first possible implementation manner of the fifth aspect, the PS service that is converted by the uplink communication data includes:

And converting, by the first base station, the uplink communication data into a standard PS service, and adding the uplink identification information to the standard PS service.

In a second possible implementation manner of the fifth aspect, the PS service that is converted by the downlink communication data includes:

The downlink communication data is converted into a standard PS service by the second base station, and the downlink identification information is added to the standard PS service.

With reference to the second possible implementation manner of the fifth aspect, or the third possible implementation manner of the fifth aspect, the fourth possible implementation manner of the fifth aspect, the uplink identifier information or the downlink identifier information, includes,

With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, the fifth possible implementation manner of the fifth aspect, the uplink communications data includes configuration data of the first base station;

After the second base station sends the restored uplink communication data to the second base station controller, the data transmission device receives the second base by using the second air interface. The downlink PS service sent by the station also includes,

The second base station controller validates the configuration data of the first base station, where the configuration data of the first base station is validated, and the configuration data is adjusted according to the running condition of the second base station controller;

The second base station receives downlink communication data that is sent by the second base station controller to the first base station, where the downlink communication data includes the adjusted configuration data of the first base station;

The second base station converts the adjusted configuration data of the first base station into the downlink PS service;

The second base station sends the downlink PS service to the data transmission device.

With reference to the fifth possible implementation manner of the fifth aspect, the sixth possible implementation manner of the fifth aspect, the first base station saves configuration data that is adjusted by the second base station controller, according to the adjusted The configuration data communicates with the second base station controller.

With reference to the fifth possible implementation manner of the fifth aspect, the seventh possible implementation manner of the fifth aspect, the configuration data includes: carrier resource information allocated by the first base station controller to the first base station And transmitting resource information;

In an eighth possible implementation manner of the fifth aspect, the uplink communications data includes voice data or signaling data.

With reference to the fifth aspect, or the eighth possible implementation manner of the fifth aspect, the ninth possible implementation manner of the fifth aspect, the downlink communication data includes: voice data or signaling number According to;

The method further includes the second base station determining whether the voice data or signaling data needs to be received by the first base station.

With reference to the ninth possible implementation manner of the fifth aspect, in a tenth possible implementation manner of the fifth aspect, the second base station determines whether the voice data or signaling data needs to be received by the first base station,

The second base station identifies a transmission resource occupied by the voice data or signaling data

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The second base station determines, according to the transmission resource information, that the voice data or signaling data is received by the first base station.

With reference to the tenth possible implementation manner of the fifth aspect, the eleventh possible implementation manner of the fifth aspect,

The first base station sends the voice data or signaling data sent by the second base station controller to the user equipment. In a sixth aspect, the embodiment of the present invention provides a communication method, where the transmission link between the first base station and the associated first base station controller is damaged, including:

Transmitting, by the first base station, uplink communication data required for communication with the second base station controller to obtain an uplink PS service;

Transmitting, by the first base station, the uplink PS service to a data transmission device by using a first air interface; the uplink PS service is forwarded by the data transmission device by using a second air interface to a second managed by a second base station controller a base station such that the second base station will After the uplink PS service is restored to the uplink communication data, sent to the second base station controller; and/or,

The first base station receives, by using the first air interface, a downlink PS service that is converted by downlink communication data required for communication between the second base station controller and the first base station, where the downlink PS service is used by the data Receiving, by the second base station, the communication device and forwarding to the first base station;

The first base station restores the downlink PS service to the downlink communication data. In a seventh aspect, the embodiment of the present invention provides a communication method, where the transmission link between the first base station and the associated first base station controller is damaged, including:

The second base station managed by the second base station controller receives the uplink PS service forwarded by the data transmission device through the first air interface;

The uplink PS service includes a PS service obtained by converting, by the first base station, uplink communication data required for communication between the first base station and a second base station controller;

The second base station restores the uplink PS service to the uplink communication data; the second base station sends the restored uplink communication data to the second base station controller;

and / or,

Receiving, by the second base station, downlink communication data that is sent by the second base station controller to the first base station;

Transmitting, by the second base station, the downlink communication data into a downlink PS service;

Sending, by the second base station, the downlink PS industry to the office by using the first air interface The data transmission device is configured to cause the downlink PS service to be sent by the data transmission device to the first base station through a second air interface.

With the communication device, system and method provided by the embodiments of the present invention, a data transmission device is set in a signal overlapping area of two adjacent cells, and a physical transmission link between the base station of one of the cells and the connected base station controller is faulty. Afterwards, the service data of the two neighboring cells are forwarded through an air interface on the data transmission device, and the base station that ensures the transmission link failure can continue to provide communication services for users in the cell, thereby improving the reliability of the communication network. , easy to implement. DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

1 is a schematic diagram of a transmission link failure between a base station and a base station controller;

2 is a data transmission device according to an embodiment of the present invention;

Figure 3 is a base station according to an embodiment of the present invention;

Figure 4 is a base station according to an embodiment of the present invention;

FIG. 5 is a data transmission device according to an embodiment of the present invention;

Figure 6 is a base station according to an embodiment of the present invention;

Figure 7 is a base station according to an embodiment of the present invention;

FIG. 8 is a network system according to an embodiment of the present invention; FIG. 9 is a flowchart of a data transmission method according to an embodiment of the present invention;

FIG. 10 is a flowchart of another data transmission method according to an embodiment of the present invention.

detailed description

The various technologies described in the embodiments of the present invention are applicable to current 2G, 3G communication systems, such as a global GSM (global system for mobi le communication) system, a code division multiple access (CDMA) system. Wideband code division multiple access (WCDMA) system, time division-synchronization code division multiple access (TD-SCDMA) system. The base station described in the embodiment of the present invention may refer to a device in the access network that communicates with user equipment (UE, user equipment) through one or more sectors on the air interface. The base station acts as a router between the user equipment and the rest of the access network, and can also coordinate attribute management of the air interface. The base station may be a base transceiver station (BTS) of GSM or CDMA, or a Node B (Node-B) in TD-SCDMA or WCDMA.

The base station controller described in the embodiment of the present invention may be a base station controller (BSC) in GSM or CDMA, or a radio network controller in a TD-SCDMA or WCDMA (RNC) ).

The air interface described in the embodiment of the present invention may be a Um interface in a GSM or CDMA network, or may be a Uu interface in a TD-SCDMA and WCDMA network. The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Taking the GSM communication system as an example, the physical bearer of the Abi s interface between the base station and the base station controller is generally transmitted by means of a 2 Mbit/s MIMO (pluse-code modulation) digital link, and the optical fiber is used as the link carrier. , it is easy to malfunction due to human or natural reasons. When the link is damaged, the cell under the base station will be out of service, and the user in the coverage area cannot use the wireless communication service.

As shown in FIG. 1, the first base station and the first base station controller, the second base station, and the second base station controller are respectively connected by wire, and the user equipment is located in the coverage area of the first base station, once the first base station is the same as the first base station. If the transmission link between the controllers fails, the user equipment will not be able to obtain the wireless communication service provided by the first base station.

The embodiment of the present invention provides a data transmission device as shown in FIG. 2, which can be applied to a scenario in which a transmission link failure between the first base station and the first base station controller shown in FIG.

The data transmission device is disposed in an overlapping area of a cell where the first base station is located and a neighboring cell of the cell, where the neighboring cell (referred to as "neighboring zone") refers to overlapping with a signal coverage of the cell and setting a cell having a handover relationship, correspondingly, the overlapping area refers to an overlapping portion of the signal coverage area of the cell and its neighboring area, the neighboring area includes a second base station, and the second base station is wired and second The base station controller is connected, and the transmission link between the second base station and the second base station controller is intact.

The data transmission device is disposed in the overlapping area of the two neighboring areas, and can ensure that the device can access the two neighboring areas at the same time, thereby forwarding the service data of the two neighboring areas. It should be noted that, since any one cell may have multiple neighboring cells, if the transmission link between the second base station and the second base station controller also fails, the data transmission device may be set in the cell and other In the overlapping area of the neighboring area, the data forwarding function is not affected by the setting position change. In addition, the first or second base station controller, the first or second base station, which is used in the embodiment, is for illustrative purposes only, and a plurality of the data transmission devices may be correspondingly arranged in different neighboring areas according to actual network requirements.

In another embodiment, the first base station and the second base station may be managed by the same base station controller, that is, the first base station and the second base station are respectively connected to the first base station controller by wire, in this scenario, the first The cell where the base station is located and the cell where the second base station is located belong to a neighboring area under the control area of the base station controller. The connection link between the first base station and the base station controller does not affect the connection between the second base station and the base station controller, and the data The transmission device can still be set in the signal overlapping area of the two adjacent areas to implement the data forwarding function.

The data transmission device may include:

The first receiving unit 101 is configured to receive, by using the first air interface, an uplink packet switching (PS) service sent by the first base station, where the uplink PS service is used by the first base station according to the first base station The uplink communication data sent to the second base station controller is converted.

The first identifying unit 102 is configured to: identify, by using the uplink identifier information included in the uplink PS service, the first PS service, and determine that the uplink PS service needs to be sent to the second base station. After the station restores the uplink PS service to the uplink communication data, the station sends the uplink PS data to the second base station controller.

Further, the data transmission device may further include

a second receiving unit 104, configured to receive, by using the second air interface, a downlink PS service that is sent by the second base station, where the downlink PS service is sent by the second base station to the second base station controller The downlink communication data of the first base station is converted.

The second identifying unit 105 is configured to identify, by using the downlink identification information included in the downlink PS service, the downlink PS service, and determine that the downlink PS service needs to be sent to the first base station.

a second sending unit 106: configured to forward, by using the first air interface, the received downlink PS service to the first base station, so that the first base station restores the downlink PS service to the downlink Communication data.

The uplink PS service or the downlink PS service involved in the embodiment of the present invention is different from the ordinary PS service in the application layer, for example, a wireless application protocol (WAP) service or a streaming media service, etc. The special PS service type obtained by converting the uplink communication data or the downlink communication data required by the second base station controller for communication, the conversion function is implemented by the first base station or the second base station, and the detailed description of the conversion process is implemented in the method part. For example, I will not repeat them here.

Therefore, the first identifying unit 102 or the second identifying unit 105 needs to be able to identify the special PS service defined above, i.e., capable of distinguishing from a normal PS service type.

Optionally, the first identifying unit 102 may be specifically configured to: according to an Internet Protocol (IP) header information included in the uplink PS service, a subnet. The SNDCP (Sub Network Dependent Convergence Protocol) segmentation information, at least one of Media Access Control Layer (MAC, Media Access Control) information, identifies the uplink PS service.

The second identifying unit 105 may be specifically configured to: identify the downlink PS service according to at least one of the Internet protocol header information, the subnet related convergence protocol segmentation information, and the medium access control layer information included in the downlink PS service.

It should be noted that the first air interface and the second air interface in the data transmission device are functionally divided only for the sake of clarity. In an embodiment, the embodiment of the present invention is not limited to the specific ones.

In another embodiment of the present invention, the uplink communication data may include: configuration data of the first base station, where the downlink communication data includes: configuration of the first base station adjusted by a second base station controller data.

The configuration data of the first base station before the link failure is allocated by the first base station controller. When the first base station is managed by the second base station controller, the original configuration data may not meet the actual operation of the second base station controller, The second base station controller may reconfigure the configuration data sent by the base station in the uplink direction, including the carrier frequency, the transmit power, and the signaling node of the base station, according to the actual operation of the network, and then re-allocate to the base station. The first base station takes effect on the adjusted configuration data, and can continue to provide communication services for user equipments in the cell.

In another embodiment of the present invention, the uplink communication data may include voice data or signaling data sent by the first base station to the second base station controller; the downlink communication data may include: the second base station controller sends Voice data or signaling data for the first base station, The voice data or signaling data is used for a communication process between the first base station and the second base station controller.

According to the data transmission device provided by the embodiment of the present invention, after the physical transmission link between the base station of one of the two neighboring cells and the base station controller to which it belongs is faulty, the air interface is used by the data transmission device. The service data of the two neighboring cells are forwarded to implement the neighboring cell escrow of the base station to ensure that the base station in the faulty cell can work normally, and the user can continue to use the wireless communication service, thereby improving the reliability of the communication network in the transmission link failure scenario.

The data transmission device provided by the embodiment of the present invention may be the data transmission device in the embodiment of the communication method shown in FIG. 9 or FIG. 10 . For details, refer to the description of the specific method embodiment shown in FIG. 9 or FIG. 10 . The embodiment of the present invention provides a base station as shown in FIG. 3, where a wired transmission link between the base station and the associated first base station controller fails. The base station may include: a first converting unit 201: converting uplink communication data sent by the base station to a second base station controller to obtain the uplink PS service, where the uplink PS service includes an uplink identifier

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The sending unit 202 is configured to send, by using the first air interface, the uplink PS service to the data transmission device, where the uplink PS service is forwarded by the data transmission device by using the second air interface to the second management by the second base station controller. And the second base station is configured to send, by the second base station, the uplink PS service to the uplink communication data, and then send the data to the second base station controller. Further, the base station may further include

The receiving unit 203 is configured to receive, by using the first air interface, a downlink PS service that is sent by the data communications device, where the downlink PS service is a downlink that is sent by the second base station to the base station according to the second base station controller. Communication data is converted and sent to the data communication device.

The second converting unit 204 is configured to restore the downlink PS service to downlink communication data that is sent by the second base station controller to the base station.

In another embodiment of the present invention, the uplink communication data includes configuration data of the base station; and the downlink communication data includes configuration data of the base station adjusted by the second base station controller.

The base station may further include: a storage unit 205: configured to save the adjusted configuration data. After the base station validates the adjusted configuration data, the base station may continue to provide communication services for the user equipment in the cell.

In another embodiment of the present invention, the uplink communication data may include voice data or signaling data, and the downlink communication data includes voice data or signaling data.

The sending unit 204 may further be configured to send the voice data or the signaling data in the received downlink communication data to the user equipment in the cell as required. The user equipment can use the received data to communicate normally with the neighboring user equipment.

According to the base station provided by the embodiment of the present invention, after the physical transmission link between the base station and the base station controller to which the base station belongs is faulty, the base station and the data transmission device disposed in the overlapping area of the two adjacent areas establish an air through the air interface. The transmission channel forwards the service data of the two neighboring areas to ensure that the base station in the faulty cell can work normally, and the user can continue The use of wireless communication services improves the reliability of the communication network in the transmission link failure scenario. The base station provided by the embodiment of the present invention may be the first base station in the embodiment of the communication method shown in FIG. 9 or FIG. 10 . For details, refer to the description of the specific method embodiment shown in FIG. 9 or FIG. 10 . An embodiment of the present invention provides a scenario in which a base station, as shown in FIG. 4, is applied to a transmission link failure between a first base station of a neighboring cell of a cell in which the base station is located and a first base station controller to which the base station is located. The transmission link between the base station and the associated second base station controller is intact.

The first receiving unit 301 is configured to receive, by using the first air interface, an uplink PS service forwarded by the data transmission device, where the uplink PS service is sent by the first base station to the second base station to which the base station belongs The upstream communication data of the device is converted and sent to the data transmission device.

The first converting unit 302 is configured to restore the uplink PS service to the uplink communication data.

The first sending unit 303 is configured to send the uplink communication data obtained by the restoration to the second base station controller.

Further, the base station may further include

The second receiving unit 304 is configured to receive downlink communication data that is sent by the second base station controller to the first base station.

The second converting unit 305 is configured to convert the downlink communication data into a downlink PS service. The second sending unit 306 is configured to send the downlink PS service by using the first air interface. And sending to the data transmission device, so that the downlink PS service is sent by the data transmission device to the first base station by using a second air interface.

The second converting unit 305 can be configured to convert the downlink communication data into a standard PS service, and add the downlink identification information to the standard PS service.

The downlink identification information includes at least one of Internet Protocol header information, subnet related convergence protocol segmentation information, and medium access control layer information.

In another embodiment of the present invention, the uplink communication data includes configuration data of the first base station, and the configuration data may include: a carrier resource allocated by the first base station controller to the first base station Information and transmission resource information.

The downlink communication data includes configuration data of the first base station that is adjusted by the second base station controller, and the adjusted configuration data may include: the second base station controller reassigns to the Carrier resource information and transmission resource information of a base station.

In another embodiment of the present invention, the uplink communication data includes voice data or signaling data that is sent by the first base station to the second base station controller, and the downlink communication data includes: the second base station controller sends the Voice data or signaling data of a base station.

In this embodiment, the base station further includes: an identifying unit 307, configured to determine, according to the transmission resource information occupied by the voice data or the signaling data, that the voice data or signaling data is received by the first base station .

Since the second base station controller allocates different transmission resources for each managed base station, the identification unit 307 can parse and save the transmission resources in the configuration data sent by the second base station controller to the first base station. information. When the second base station controller sends voice data or signaling data, it may be occupied according to the voice data or signaling data. Whether the transmission resource information is consistent with the saved transmission resource information of the first base station, to determine whether the voice data or the signaling data sent by the second base station controller is directly sent to the base station for use or needs to be forwarded to The first base station.

According to the base station provided by the embodiment of the present invention, after the physical transmission link between the base station of the neighboring cell and the associated base station controller fails, the base station and the data transmission device disposed in the overlapping area of the two neighboring cells pass the air interface. The air transmission channel is established, and the service data of the two neighboring areas are forwarded to ensure that the base station in the faulty cell can work normally, and the user can continue to use the wireless communication service, thereby improving the reliability of the communication network in the transmission link failure scenario.

The base station provided by the embodiment of the present invention may be the second base station in the embodiment of the communication method shown in FIG. 9 or FIG. 10, and may be specifically described in the specific method embodiment shown in FIG. 9 or FIG. The embodiment of the present invention provides a data transmission device, as shown in FIG. 5, including: a receiver 401: configured to receive, by using a first air interface, an uplink packet PS service sent by the first base station, where the uplink PS service is And being converted by the first base station according to the uplink communication data that is sent by the first base station to the second base station controller.

The processor 402 is configured to identify, by using the uplink identifier information included in the uplink PS service, the first PS service, and determine that the uplink PS service needs to be sent to the second base station.

The transmitter 403 is configured to forward the received uplink PS service to the second base station managed by the second base station controller by using the second air interface, so that the second base station restores the uplink PS service to the After the uplink communication data is described, it is sent to the second base station to control Device.

In another embodiment of the invention,

The receiver 401 is further configured to receive, by using the second air interface, a downlink PS service sent by the second base station, where the downlink PS service is sent by the second base station to the second base station controller The downlink communication data of the first base station is converted.

The processor 402 is further configured to: identify, by using the downlink identifier information included in the downlink PS service, the downlink PS service, and determine that the downlink PS service needs to be sent to the first base station.

The transmitter 403 is further configured to: forward, by using the first air interface, the received downlink PS service to the first base station, so that the first base station restores the downlink PS service to the Downstream communication data.

Optionally, the processor 402 is specifically configured to: according to an Internet Protocol (IP) header information included in the uplink PS service, a Subnet Dependent Convergence Protocol (SNDCP) segmentation Information, at least one of medium access control layer (MAC, Media Access Control) information to identify the uplink PS service. Or identifying the downlink PS service according to at least one of the Internet protocol header information, the subnet related convergence protocol segmentation information, and the medium access control layer information included in the downlink PS service.

In another embodiment of the present invention, the uplink communication data may include: The configuration data of the base station, the downlink communication data includes configuration data of the first base station adjusted by the second base station controller.

In another embodiment of the present invention, the uplink communication data may include voice data or signaling data sent by the first base station to the second base station controller; the downlink communication data may include: the second base station controller sends Voice data or signaling data for the first base station, the voice data or signaling data being used for a communication process between the first base station and the second base station controller.

The data transmission device provided by the embodiment of the present invention may be the data transmission device in the embodiment of the communication method shown in FIG. 9 or FIG. 10, and specifically may refer to the specific embodiment shown in FIG. 9 or FIG. Description of method embodiments. The embodiment of the present invention provides a base station as shown in FIG. 6, where a wired transmission link between the base station and the associated first base station controller fails. The base station may include: a processor 501: The uplink communication data used to send the base station to the second base station controller is converted to obtain the uplink PS service, where the uplink PS service includes uplink identifier information.

The transmitter 502 is configured to send, by using a first air interface, the uplink PS service to a data transmission device, where the uplink PS service is forwarded by the data transmission device by using a second air interface to a second cell controller And the second base station is configured to send, by the second base station, the uplink PS service to the uplink communication data, and then send the data to the second base station controller.

Further, the base station may further include

The receiver 503 is configured to receive, by using the first air interface, a downlink PS service that is sent by the data communications device, where the downlink PS service is a downlink that is sent by the second base station to the base station according to the second base station controller. Communication data is converted and sent to the data communication device.

The processor 501 is further configured to restore the downlink PS service to downlink communication data that is sent by the second base station controller to the base station.

The base station may further include: a memory 504: configured to save the adjusted configuration Data. After the base station takes effect on the adjusted configuration data, the base station may continue to provide communication services for the user equipment in the cell.

The transmitter 502 can further be configured to send voice data or signaling data in the received downlink communication data to the user equipment in the cell as needed. The user equipment can use the received data to communicate normally with the neighboring user equipment.

According to the base station provided by the embodiment of the present invention, after the physical transmission link between the base station and the base station controller to which the base station belongs is faulty, the base station and the data transmission device disposed in the overlapping area of the two adjacent areas establish an air through the air interface. The transmission channel forwards the service data of the two neighboring areas to ensure that the base station in the faulty cell can work normally, and the user can continue to use the wireless communication service, thereby improving the reliability of the communication network in the transmission link failure scenario.

The base station provided by the embodiment of the present invention may be the first base station in the embodiment of the communication method shown in FIG. 9 or FIG. 10, and may be specifically described in the specific method embodiment shown in FIG. 9 or FIG. The embodiment of the present invention provides a scenario in which a base station shown in FIG. 7 is applied to a transmission link failure between a first base station of a neighboring cell of a cell in which the base station is located and a first base station controller to which the base station is located. The transmission link between the base station and the associated second base station controller is intact.

The receiver 601 is configured to receive, by using the first air interface, an uplink PS service forwarded by the data transmission device, where the uplink PS service is sent by the first base station to the first base station The uplink communication data of the second base station controller to which the base station belongs is converted and sent to the data transmission device.

The processor 602 is configured to restore the uplink PS service to the uplink communication data. The transmitter 603 is configured to send the uplink communication data obtained by the restoration to the second base station controller.

Further, in another embodiment of the present invention,

The receiver 601 is further configured to receive downlink communication data that is sent by the second base station controller to the first base station.

The processor 602 is further configured to convert the downlink communication data into a downlink PS service.

The transmitter 603 is further configured to send, by using the first air interface, a downlink PS service to the data transmission device, so that the downlink PS service is sent by the data transmission device to the device by using a second air interface. The first base station is described.

The processor 602 can be further configured to convert the downlink communication data into a standard PS service, and add the downlink identification information to the standard PS service.

The downlink communication data includes configuration data of the first base station that is adjusted by the second base station controller, and the adjusted configuration data may include: the second base The station controller reassigns carrier resource information and transmission resource information to the first base station. In another embodiment of the present invention, the uplink communication data includes voice data or signaling data that is sent by the first base station to the second base station controller, and the downlink communication data includes: the second base station controller sends the Voice data or signaling data of a base station.

In this embodiment, the processor 602 is further configured to determine, according to the transmission resource information occupied by the voice data or the signaling data, that the voice data or the signaling data is received by the first base station.

The processor 602 can parse and save the transmission resource in the configuration data sent by the second base station controller to the first base station, because the second base station controller allocates different transmission resources for each of the managed base stations. information. When the second base station controller sends the voice data or the signaling data, it may be determined according to whether the transmission resource information occupied by the voice data or the signaling data is consistent with the saved transmission resource information of the first base station. The voice data or signaling data sent by the second base station controller is directly sent to the base station for use or needs to be forwarded to the first base station.

The base station provided by the embodiment of the present invention may be the second base station in the embodiment of the communication method shown in FIG. 9 or FIG. 10, and may be specifically referred to the specific method embodiment shown in FIG. 9 or FIG. Description. The embodiment of the present invention provides a communication system as shown in FIG. 8, including a first base station 701, a second base station 702, a base station controller 703 to which the second base station belongs, and a data transmission device 704. The data transmission device 704 is disposed in an overlapping area of a cell where the first base station 701 is located and a neighboring cell of the cell.

The first base station 701 is configured to convert uplink communication data into an uplink PS service and send the data to the data transmission device by using an air interface;

The data transmission device 704 is configured to identify an uplink PS service sent by the first base station and forward the packet to the second base station;

The second base station 702 is configured to receive an uplink PS service forwarded by the data transmission device, and restore the uplink PS service to uplink communication data, and then send the uplink PS service to the second base station controller.

The second base station controller 703 is configured to receive the uplink communication data sent by the second base station 702.

Further, in another embodiment of the present invention,

The data transmission device 704 is further configured to identify the downlink PS service sent by the second base station 702 and forward the same to the first base station;

The first base station 701 is further configured to receive the downlink PS service forwarded by the data transmission device 704, and restore the downlink PS service to downlink communication data.

The second base station 702 is further configured to receive and identify the downlink communication data that is sent by the base station controller 703 to the first base station 701, and convert the downlink communication data. The downlink PS service is sent to the data transmission device 704;

The second base station controller 703 is further configured to send the downlink communication data to the second base station 702.

In a specific implementation manner, the data line is connected between two intelligent terminals, and application software is installed on the terminal to implement the forwarding function of the foregoing PS service.

In another embodiment of the present invention, in a scenario where the base station controller to which the second base station belongs is faulty, the second base station controller may be replaced by a computer simulating the upper-level network element, and the computer may assume the function and management of the base station controller. The second base station, the second base station and the computer form an emergency communication system. The emergency communication system can be used to maintain normal communication of user equipment in a small area, and the communication area radius is generally less than 3 kilometers. After the physical transmission link between the first base station and the first base station controller is interrupted, the second base station controller can be simulated by the computer to control the first base station, and the cell in the first base station is not returned.

When used in conjunction with the emergency system, the first base station converts its own configuration data into a PS service and sends it to the data transmission device through the air interface. The data transmission device forwards the received information to the emergency system where the neighboring cell corresponds to the emergency system. After the PS service, the configuration data of the first base station is saved and adjusted. The emergency system can also manage the cell under the first base station by using the configuration information of the first base station, and provide wireless communication service for the user equipment in the cell under the first base station.

Further, since one base station controller can manage multiple base stations at the same time, the first base station and the second base station in the system can be managed by the same base station controller. In this scenario, the transmission link failure between the first base station and the base station controller does not affect the data transmission between the second base station and the base station controller. Therefore, the data transmission device can still be set. The overlapping area of the cell under the first base station and the cell under the second base station is implemented to implement forwarding of the PS service.

With the network system provided by the embodiment of the present invention, when the transmission link between the base station and the associated base station controller fails, the base station can actively send its configuration information to the neighbor through the air transmission channel established by the special data transmission device. The base station controller of the area manages the cell where the link faulty base station is located by the base station controller of the neighboring area, implements the neighboring area trust of the link faulty base station, improves the efficiency of equipment maintenance, and reduces the maintenance cost.

The communication system may include the data transmission device in the embodiment shown in FIG. 2 or FIG. 5, and the base station in the embodiment shown in FIG. 3 or FIG. 6 serves as the first base station in the system, FIG. 4 or FIG. The base station in the embodiment shown in Fig. 7 serves as the second base station in the system. In the communication system, the communication method shown in FIG. 9 or FIG. 10 can be performed. For details, refer to the specific method embodiment shown in FIG. 9 or FIG. An embodiment of the present invention provides a communication method, where the method is applied to a scenario in which a transmission link between a first base station and a connected first base station controller is damaged, where the cell where the first base station is located and the cell A data transmission device is disposed in the overlapping area of the neighboring cell, the neighboring cell includes a second base station, and the second base station is connected to the second base station controller.

The data transmission device may be set when the transmission link of the first base station and the first base station controller is not damaged, or may be set after the transmission link is damaged, which is not limited in the embodiment of the present invention.

The data transmission device may use the data transmission device in the embodiment shown in FIG. 2 or FIG. 5, or other devices having the same function; the first base station may adopt FIG. 3 or The base station in the embodiment shown in FIG. 6 or other devices having the same function; the second base station may use the base station in the embodiment shown in FIG. 4 or FIG. 7, or other devices having the same function. Each of the execution bodies in the communication method can constitute the communication system in the embodiment shown in FIG.

The method flow is as shown in FIG. 9, including the uplink communication data transmission process in steps 901-903; and the downlink communication data transmission process in steps 904-906.

901: The data transmission device receives the uplink packet switched PS service sent by the first base station by using a first air interface, where the uplink PS service is sent by the first base station to the second base station controller according to the first base station. Uplink communication data is obtained.

Optionally, the method for converting the uplink communication data into the uplink PS service may be: expanding the protocol stack of the first base. In the extended base station protocol stack, a protocol for carrying the PS service needs to be included, and the uplink communication data can be converted into a special PS service. Specifically, the uplink communication data may be encapsulated by the first base station, and the uplink communication data needs to be converted into a standard PS service type, and the conversion manner may be various methods in the prior art, which is not limited in the embodiment of the present invention. And then adding the uplink identification information to the standard PS service data, for example, at least one of the Internet Protocol header information, the subnet-related convergence protocol segmentation information, and the medium access control layer information, which can be distinguished from the common one at the application layer. The PS service is converted on the physical layer to an uplink PS service that the data transmission device can recognize.

902: The data transmission device identifies the first PS service by using the uplink identifier information included in the uplink PS service, and determines that the uplink PS service needs to be sent to the second base station.

The data transmission device identifies whether the received PS service contains a specific one The identification information determines whether the PS service needs to be forwarded to the second base station or abandons the processing.

903: The data transmission device forwards the received uplink PS service to a second base station managed by the second base station controller by using a second air interface, so that the second base station sends the uplink PS service. After being restored to the uplink communication data, the data is sent to the second base station controller.

After the second base station receives the uplink PS service, the method for restoring the uplink communication data may be: decapsulating the uplink PS service, for example, deleting a MAC header of the PS service on the physical layer, and performing the splitting The segment is reorganized, the IP header is deleted, and the uplink communication data is identified at the application layer.

904: The data transmission device receives the downlink PS service sent by the second base station by using the second air interface, where the downlink PS service is sent by the second base station to the first base station controller. The downlink communication data of the base station is converted.

The process of converting the downlink communication data by the second base station is similar to the process of converting the uplink communication data by the first base station, and details are not described herein again.

905: The data transmission device identifies the downlink PS service by using downlink identification information included in the downlink PS service, and determines that the downlink PS service needs to be sent to the first base station.

906: The data transmission device forwards the received downlink PS service to the first base station by using the first air interface, so that the first base station restores the downlink PS service to the downlink communication. data.

The process of restoring the downlink PS service by the first base station is similar to the process of restoring the uplink PS service by the second base station, and details are not described herein again. After receiving the downlink communication data, the first base station may perform data forwarding according to the requirements of the user equipment in the cell, and provide a normal communication service.

It should be noted that the communication method may include transmission of uplink communication data and transmission of downlink communication data; or only transmission of uplink communication data; or transmission including only downlink communication data, according to the first base station and the first The communication requirements of the two base station controllers are carried out.

The first air interface and the second air interface in the data transmission device are functionally divided only for the sake of clarity. In practice, the two different air interfaces may be used, and the same air interface may be used. The embodiment of the present invention is not particularly limited.

According to the method provided by the embodiment of the present invention, after the physical transmission link between the base station of one of the two neighboring cells and the base station controller to which it belongs belongs, the two are connected through the air interface on the data transmission device. The service data of the neighboring cell is forwarded to ensure that the base station in the faulty cell can work normally, and the user can continue to use the wireless communication service, thereby improving the reliability of the communication network in the transmission link failure scenario. Further, the embodiment of the present invention further provides a communication method, and the method flow is as shown in the figure.

10 is shown.

The application scenario of the data transmission method may be: the transmission link of the first base station and the associated first base station controller is interrupted, and the first base station enters a failure mode; the cell where the second base station is located and the cell where the first base station is located are adjacent to each other. The transmission link between the second base station and the associated second base station controller is intact, and the communication service can be provided for the user equipment in the managed cell, and the second base station is said to be in the service mode. By adopting the method provided in this embodiment, it can be The user equipment in the cell coverage area of the first base station in the fault mode is normally in the communication industry.

1001: The data transmission device establishes a connection with the first base station and the second base station, respectively.

Specifically, the data transmission device is disposed in an overlapping area of two neighboring cells, and the device can simultaneously search for network information sent by the first base station and the second base station, and can access the two neighboring areas.

For the reliability of data transmission, the data transmission device may be set when the transmission link of the first base station and the first base station controller is not damaged, and the data transmission device may remain in working state once the transmission link is damaged. It can transmit data in real time, avoiding short-term transmission stagnation and affecting communication service quality. In practical applications, the data transmission device may be set and opened after the transmission link is damaged, and the location of the faulty cell may be accurately located, thereby saving the cost and energy consumption of the setting device.

The data transmission device determines the locations of the first base station and the second base station by receiving the cell information broadcast by the first base station and the second base station, and respectively initiates a random access request to the two base stations, and receives the random access fed back by the base station. After the response message, the data transmission device accesses the first base station and the second base station and can perform data transmission, including transmitting the PS service. The first base station and the second base station may also obtain the identification information of the data transmission device, such as geographic location information, an identification number, an IP address, etc., so that the first base station or the second base station may identify the received uplink PS service or The downlink PS service is transmitted by the data transmission device.

Specifically, before the first base station enters the fault mode, the data transmission device can search for the signal sent by the first base station and access the first base station, but at this time, between the first base station and the first base station controller. The transmission link is intact, and data interaction can be performed normally. The first base station does not need to convert the configuration data or the service data into special PS services and send the information to the device. Therefore, before the first base station enters the fault mode, the device may only complete access to the first base station and the second base station. Preparation, waiting in the state.

After the first base station enters the failure mode, although the connection between the first base station and the first base station controller is interrupted, the first base station still maintains the carrier frequency transmission power and the cell information in order to keep the cell under the first base station unreturned ( For example, the broadcast of the cell identifier, the cell frequency band, etc., ensures that the data transmission device can still search for the signal of the first base station and keep the connection with it, and the first base station can convert its own configuration data and actual communication service data into PS service data and send it to The data transmission device performs forwarding of the PS service data by the device. The second base station controller can manage the cells in the first base station by receiving configuration data of the first base station, including management of radio network resources, management of cell configuration data, transmission power control of the base station, cell positioning, and handover.

To implement the management of the first base station by the second base station controller, the second base station controller first acquires configuration data of the first base station, and adjusts according to the actual situation of the network. Specific steps include 1002-1008.

1002: The first base station converts its configuration data into an uplink PS service, and then sends the data to the data transmission device through an air interface.

The configuration data may include all the base station configuration data required by the base station controller, such as cell information, neighbor relationship and cell handover parameters, carrier resource information of the base station, and transmission resource information. The configuration data may be pre-stored in the base station. At the same time, when the configuration data of the base station changes, the configuration data stored in the device may be updated to ensure the real-time performance, accuracy, and consistency of the configuration data, and the communication service is ensured. quality. 1003: The data transmission device identifies the uplink PS service converted by the configuration data of the first base station, and then forwards to the second base station by using an air interface.

1004: The second base station determines, according to the identification information of the data transmission device, that the uplink PS service is sent by the data transmission device, and is restored to configuration data of the first base station, and is maintained and maintained by the operation of the second base station (OML). And operating and maintaining the configuration data to the second base station controller.

1005: The second base station controller saves and validates the configuration data of the first base station in the fault mode, where the configuration data of the first base station is determined according to the actual situation of the second base station controller and the actual network requirements. The configuration data is adjusted accordingly. The adjusted configuration data is sent to the second base station.

The method includes: adjusting, for the transmission resource of the first base station, because the transmission resource of the first base station is allocated by the first base station controller before the transmission link is faulty, the corresponding transmission resource may have been Other base stations are occupied, so the transmission resources need to be adjusted. For example, the transmission resource allocated by the first base station controller to the first base station is a 0 port 2 time slot of the E1 line, and after the transmission resource data is sent to the second base station controller, the second base station controller may occupy according to the current time slot. In the case, it is determined whether the 0 port 2 time slot of the E1 line has been allocated to other base stations managed by the second base station controller, and the transmission resources allocated to the first base station can be adjusted to other idle time slots.

The second base station controller may also adjust the signaling node information of the first base station. The signaling node information is node information used by the first base station controller to perform data interaction with the core network before the transmission link of the first base station and the first base station controller is broken, the node The information corresponds to the first controller. Therefore, in the second base station After the controller manages the first base station, the BSC2 needs to adjust the signaling node information to the signaling node information corresponding to the BSC2. For example, before the fault, the cell of the first base station has a signaling node of 200 on the first base station controller, and after the second base station controller is responsible for managing the first base station and the lower cell of the first base station, it needs to be converted into a corresponding BSC2. Node value.

The second base station controller may also adjust the carrier resource configuration of the first base station. The power, frequency, and the like used by the first base station before the fault are determined by the first base station controller. After the first base station is managed by the second base station controller, the power or frequency used by the first base station may have been second. The other base stations under the base station controller are used, so the second base station controller can adjust this to avoid collision with other base stations.

The adjusted configuration data of the first base station includes transmission resource data, carrier resource data, and the like that are reallocated for the first base station. The carrier resource data includes information such as a carrier frequency, a transmission power, a signaling node, and the like that can be used by the first base station after being adjusted.

One of the main functions of the base station controller is the management of radio transmission resources, configuring traffic and control channels for each cell under the managed base station. Therefore, reallocating the appropriate transmission resources for the first base station is an important task for the second base station controller. In order to be able to accurately reconfigure the transmission resources, the second base station controller can collect various statistics about the first base station. For example, the number of lost calls of the user equipment in the cell of the first base station, the success rate of the cell handover, the traffic volume of the cell, and the wireless network environment. The statistical data may be logged by the first base station and converted into PS service data, and then forwarded to the second base station controller by the data forwarding device and the second base station for use by the second base station controller.

The second base station controller completes resource configuration update to the first base station according to the configuration data, and forms a new base station subsystem with the first base station through the air interface data transmission channel. The normal communication service is provided to the user equipment in the cell under the first base station.

1006: After receiving the configuration data, the second base station saves the transmission resource information allocated by the second base station controller to the first base station, and converts the configuration data sent to the first base station into the downlink PS service and sends the data to the data transmission device.

1007: The data transmission device forwards the downlink PS service obtained by converting the adjusted configuration data to the first base station by using an air interface.

1008: The first base station identifies the downlink PS service, parses the configuration data contained therein, and implements the configuration to ensure that the cell transmit power is normal.

Forwarding configuration data of the first base station by using an air interface of the data transmission device, where the second base station controller can replace the first base station controller, manage the cell under the first base station, and establish a relationship between the first base station and the second base station controller. The air interface data transmission channel, the user equipment of the cell in the first base station can continue to perform communication services, and perform various types of service data interaction on the air interface data transmission channel.

After the configuration data that is validated by the first base station is implemented, and the management of the first base station by the second base station controller is implemented, the method may further include a call signaling process initiated by the user equipment in the cell where the first base station is located, and the specific step is performed. As shown in 101 1-1017.

It should be noted that after the configuration data of the first base station is adjusted or modified by the second base station controller and returned to the first base station, all the communication services after the first base station are affected, and the first base station can always use the The adjusted or modified configuration data does not need to repeatedly report configuration data to the second base station controller. However, in an actual application, if the configuration data needs to be adaptively modified according to the actual operation of the network during the operation of the first base station, the second base station controller may also send the modified configuration data to the first. The base station uses the updated configuration data by the first base station to improve service processing capability.

The signaling data transmission in the upstream direction includes steps 1009-1011.

1009: In the uplink direction, the user equipment in the cell of the first base station initiates a voice call request, and sends signaling data required for the voice call to the first base station.

1010: The first base station converts the signaling data into an uplink PS service, and sends the data to the data transmission device through an air interface, and the data transmission device forwards the uplink PS service to the second base station by using an air interface.

1011: The second base station identifies the uplink PS service, and parses out the signaling data contained therein, and sends the signaling data to the second base station controller according to the transmission resource allocated to the first base station.

The signaling data transmission in the downlink direction includes steps 1012-1015.

1012: In the downlink direction, the second base station controller sends signaling data that is sent to the first base station to the second base station.

1013: The second base station converts the signaling data in the downlink direction into the downlink PS service through the air interface and sends the data to the data transmission device.

1014: The data transmission device forwards the downlink PS service obtained by converting the foregoing signaling data to the first base station by using an air interface.

Since the second base station controller manages the first base station and the second base station at the same time, the service data sent to the second base station includes not only data sent to the first base station but also data sent only to the second base station. The second base station may send the service data to itself or send it to the first base station, and encapsulate the signaling data sent to the first base station into a downlink PS service. Specifically, the second base station may compare the transmission resource information in the configuration data of the saved first base station with the transmission resource occupied by the service data sent by the second base station controller, and determine whether the service data is sent to the first The base station, or assigned to the second base station itself.

1015: The first base station restores the received downlink PS service to the downlink direction signaling data, and sends the signaling data to the user equipment to complete the signaling interaction of the call flow.

Take the signaling interaction of the access phase in the active call flow initiated by the user equipment in the cell under the first base station as an example. In the uplink direction, the user equipment first needs to send channel request signaling to the first base station through the random access channel, and requires the network to provide an SDCCH channel for signaling. After receiving the channel request signaling of the user equipment, the first base station generates a channel request signaling, and converts the signaling data into an uplink PS service, and sends the data to the data transmission device through the air interface, and the data transmission is performed. The device forwards to the second base station, and the second base station identifies the signaling content of the uplink PS service representative, parses the signaling data, and sends the signaling data to the second base station controller. In the downlink direction, after receiving the channel request signaling, the second base station controller selects a corresponding idle channel for the request and sends a channel activation to the first base station according to the judgment of the existing system radio resources (channel active) Signaling to query whether the corresponding ground resource (such as a transmission circuit, etc.) is available, the channel activation signaling is first sent to the second base station, and the second base station sends the signaling to other signaling or service data sent to itself. After the phase distinction, the signaling is converted into a downlink PS service, sent to the data transmission device through the air interface, and forwarded by the data transmission device to the first base station, and the first base station restores the channel activation signaling, and responds to the response. a channel active ACK signaling to the second base station controller The transmission process is similar to the channel application signaling, and is not described here. In the access process, it also includes the immediate assignment, the immediate assignment reject, the CM service request, and other signaling. The process is divided into uplink and downlink, which is similar to the above transmission process, and will not be described here.

Further, after the signaling interaction is completed, the user equipment can perform a voice communication service, and the specific steps may include 1016-1022.

The voice data transmission in the uplink direction includes steps 1016-1018.

1016: In the uplink direction, the user equipment sends voice data to the first base station.

1017: The first base station converts the voice data into an uplink PS service, and sends the data to the data transmission device by using an air interface, and the data transmission device forwards the uplink PS service to the second base station by using an air interface.

1018: The second base station identifies the uplink PS service, and parses out the voice data, and then sends the voice data to the second base station controller according to the transmission resource allocated to the first base station.

The downlink voice data transmission includes steps 1019-1022.

1019: In the downlink direction, the second base station controller sends the voice data required by the first base station to the second base station.

1020: After receiving the voice data sent by the second base station controller to the first base station, the second base station converts to the downlink PS service and sends the data to the data transmission device through the air interface.

1021: The data transmission device forwards the PS service obtained by converting the downlink voice data to the first base station by using an air interface.

1022: The first base station restores the received PS service to voice data, and sends it to the user. The user equipment completes the uplink and downlink interaction of the voice service data.

For the interaction process of the foregoing voice data, refer to the interaction process of the signaling data in steps 1011-1017, and details are not described herein.

Optionally, in addition to the voice service, the first base station and the second base station may also perform conversion of non-real-time voice call data, such as a short message, a multimedia message, etc., and the data transmission device may also convert the data by the non-real time voice call. The obtained uplink and downlink PS services are forwarded.

After the uplink and downlink interactions between the signaling data and the voice data are completed, the user equipment in the cell of the first base station completes a process of performing a voice call with the other user equipment in the local cell or the neighboring cell, without being communicated by the first base station. The impact of link damage.

It should be noted that, in addition to the signaling interaction required before the voice service is initiated, for example, in a scenario where a communication link or a port resource needs to be established in a cell, signaling between the base station controller and the base station is required. Data interaction. The forwarding process of the signaling data in steps 1011-1017 includes various types of signaling. Therefore, in addition to the signaling data required by the foregoing voice service, forwarding of other signaling data may be performed at the first base station. After the configuration data forwarding is completed, it is performed independently or concurrently with the voice service, depending on the specific content of the signaling data and the specific application scenario. The above embodiment relates only to the order in which the signaling data and the voice data are forwarded in the voice service, and does not constitute any limitation on the data forwarding order in other services.

According to the method provided by the embodiment of the present invention, a data transmission device is set between neighboring cells, and after a physical transmission link between a base station of one of the cells and a base station controller to which the cell belongs belongs, the data transmission device passes through the data transmission device. The air interface sends the configuration data of the base station where the link is faulty to the base station controller to which the neighboring base station belongs, so as to implement the neighboring area of the base station. To ensure that the base station in the faulty cell can continue to provide communication services for users in the cell, and improve the reliability of the communication network in the transmission link failure scenario. In the several embodiments provided herein, it should be understood that the disclosed devices, systems, and methods may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the modules is only a logical function division. In actual implementation, there may be another division manner, for example, multiple modules or components may be combined or Can be integrated into another device, or some features can be ignored, or not executed.

In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, and each module may exist physically separately, or two or more modules may be integrated into one module. A person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable medium. The storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

It should be noted that the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., should be made within the spirit and principles of the present invention. It is included in the scope of protection of the present invention.

Claims

Rights request

A data transmission device, characterized in that it is applied to a scenario in which a transmission link between a first base station and an associated first base station controller is damaged,

The data transmission device includes

a first receiving unit, configured to receive an uplink packet switched PS service sent by the first base station by using a first air interface, where the uplink PS service is sent by the first base station according to the first base station to a second base station The uplink communication data of the device is converted;

and / or,

The second identifying unit is configured to: identify, by using the downlink identifier information that is included in the downlink PS service, the downlink PS service, and determine that the downlink PS service needs to be sent to the first base station; The downlink that the first air interface will receive

The PS service is forwarded to the first base station, so that the first base station restores the downlink PS service to the downlink communication data.

The data transmission device according to claim 1, wherein the first identification unit is configured to: according to the Internet Protocol header information included in the uplink PS service, sub-network related convergence protocol segmentation information, Identifying, by the at least one of the medium access control layer information, the uplink PS service, or

The data transmission device according to claim 1 or 2, wherein the uplink communication data comprises configuration data of the first base station;

The data transmission device according to claim 1 or 2, wherein the uplink communication data or the downlink communication data includes voice data or signaling data.

A base station, which is applied to a scenario in which a transmission link between the base station and the associated first base station controller is faulty, the base station includes

a first converting unit: the uplink communication data used to send the base station to the second base station controller is converted to obtain the uplink PS service, where the uplink PS service includes uplink identifier information, and the sending unit is configured to use the first air interface. Transmitting the uplink PS service to a data transmission device, where the uplink PS service is forwarded by the data transmission device to a second base station managed by a second base station controller by using a second air interface, so that the second base station After the uplink PS service is restored to the uplink communication data, sent to the second base station controller; and/or, a receiving unit, configured to receive, by using the first air interface, a downlink PS service that is sent by the data communication device, where the downlink PS service is a downlink communication that is sent by the second base station to the base station according to the second base station controller Data conversion is obtained and sent to the data communication device;

The base station according to claim 5, wherein the uplink identification information includes

The base station according to claim 6, wherein the uplink communication data includes configuration data of the base station;

The base station further includes

Storage unit: Used to save the adjusted configuration data.

The base station according to claim 5, wherein the uplink communication data comprises voice data or signaling data.

The base station according to claim 5 or 8, wherein the downlink communication data comprises voice data or signaling data;

The sending unit is further configured to send the voice data or signaling data to the user equipment.

10. A base station, characterized in that

and / or,

a second converting unit: configured to convert the downlink communication data into a downlink PS service; and a second sending unit, configured to send, by using the first air interface, a downlink PS service to the data transmission device, to enable the downlink The PS service is transmitted by the data transmission device to the first base station via a second air interface.

The base station according to claim 10, wherein the second converting unit is further configured to convert the downlink communication data into a standard PS service, and add the downlink identifier to the standard PS service. information.

The base station according to claim 1 , wherein the downlink identification information includes:

Internet Protocol Header Information, Subnet Related Convergence Protocol Segmentation Information, Media Access Control At least one of the layer information.

The base station according to claim 10, wherein the uplink communication data includes configuration data of the first base station;

The base station according to claim 13, wherein the configuration data includes carrier resource information and transmission resource information allocated by the first base station controller to the first base station;

The base station according to claim 10 or 14, wherein the uplink communication data comprises voice data or signaling data.

The base station according to claim 14 or 15, wherein the downlink communication data comprises voice data or signaling data;

The base station further includes: an identifying unit, configured to determine, according to the transmission resource information occupied by the voice data or the signaling data, that the voice data or the signaling data is received by the first base station.

A network system, comprising: a first base station, a second base station, a base station controller to which the second base station belongs, and a data transmission device;

The data transmission device is configured to identify an uplink PS service sent by the first base station and Forwarding to the second base station;

and / or,

The first base station is further configured to receive a downlink PS service forwarded by the data transmission device, and restore the downlink PS service to downlink communication data;

The second base station is further configured to receive and identify the downlink communication data that is sent by the base station controller to the first base station, and convert the downlink communication data into the downlink.

The PS service is sent to the data transmission device;

The second base station controller is further configured to send the downlink communication data to the second base station.

18. A communication method, characterized in that: a scenario in which a transmission link between a first base station and an associated first base station controller is damaged, including,

The data transmission device uses the uplink identifier information included in the uplink PS service to identify Determining, by the first PS service, that the uplink PS service needs to be sent to the second base station; and the data transmission device forwarding, by using the second air interface, the received uplink PS service to be controlled by the second base station The second base station managed by the second base station, after the second base station restores the uplink PS service to the uplink communication data, and sends the uplink data to the second base station controller;

and / or,

The data transmission device identifies the downlink PS service by using downlink identification information included in the downlink PS service, and determines that the downlink PS service needs to be sent to the first base station; and the data transmission device passes the first air interface. The downlink that will be received

The method according to claim 18, wherein the PS service converted by the uplink communication data comprises:

The method according to claim 18, wherein the PS service converted by the downlink communication data comprises:

The method according to claim 19 or 20, wherein the uplink identification information or downlink identification information includes

The method according to claim 18 or 19, wherein the uplink communication data comprises configuration data of the first base station;

After the second base station sends the restored uplink communication data to the second base station controller, the data transmission device further includes, before receiving, by the second air interface, the downlink PS service sent by the second base station. ,

23. The method of claim 22, wherein

The first base station saves configuration data adjusted by the second base station controller, and communicates with the second base station controller according to the adjusted configuration data.

The method according to claim 22, wherein the configuration data packet Included, carrier resource information and transmission resource information allocated by the first base station controller to the first base station;

The method according to claim 18, wherein the uplink communication data comprises voice data or signaling data.

The method according to claim 18 or 25, wherein the downlink communication data comprises voice data or signaling data;

The method further includes:

The second base station determines whether the voice data or signaling data needs to be received by the first base station.

27. The method of claim 26, wherein

Determining, by the second base station, whether the voice data or signaling data needs to be received by the first base station,

I Ή自, .,

The method according to claim 27, wherein the method further comprises: the first base station transmitting the voice data or signaling data sent by the second base station controller to a user equipment.

29. A communication method, characterized in that it is applied to a first base station and a first associated A scenario in which a transmission link between base station controllers is damaged, including,

Transmitting, by the first base station, the uplink PS service to a data transmission device by using a first air interface; the uplink PS service is forwarded by the data transmission device by using a second air interface to a second managed by a second base station controller a base station, after the second base station restores the uplink PS service to the uplink communication data, and sends the data to the second base station controller; and/or,

The first base station restores the downlink PS service to the downlink communication data.

30. A communication method, characterized in that: a scenario in which a transmission link between a first base station and an associated first base station controller is damaged, including,

The second base station restores the uplink PS service to the uplink communication data; the second base station sends the restored uplink communication data to the second base station controller; and / or,

Transmitting, by the second base station, the downlink communication data into a downlink PS service; the second base station transmitting, by using the first air interface, the downlink PS industry to the data transmission device, to enable the downlink PS service And transmitting, by the data transmission device, the first base station by using a second air interface.