WO2014117634A1

WO2014117634A1 - Indoor signal coverage-based communication system, device and method

Info

Publication number: WO2014117634A1
Application number: PCT/CN2014/000045
Authority: WO
Inventors: 向炜; 谢灏; 张远见; 邓世群
Original assignee: 京信通信系统（中国）有限公司
Priority date: 2013-02-04
Filing date: 2014-01-16
Publication date: 2014-08-07
Also published as: CN103118375B; CN103118375A

Abstract

Disclosed are an indoor signal coverage-based communication system, a device and a method. A content comprises: in an indoor signal coverage area, deploying a central control device and multiple distributed control devices that communicate through a local wired or wireless network; and when a mobile terminal enters the indoor signal coverage area from a macro base station signal coverage area, the central control device, according to location information of the mobile terminal that moves after entering the indoor signal coverage area, determining an area where the location information belongs, selecting a distributed control device and sending a scheduling instruction to instruct the distributed control device to provide wireless communication for the mobile terminal through a dedicated channel. Compared with prior art, an operation for the mobile terminal to switch within the indoor signal coverage area is managed by the central control device and does not need to be reported to a core network side, reducing a signaling overhead of a core network, saving a network resource of the core network, reducing integral interference of the communication system, and implementing good communication within the indoor signal coverage area.

Description

Communication method, device and system based on indoor signal coverage

Technical field

The present invention relates to the field of mobile communications, and in particular, to a communication method, device and system based on indoor signal coverage. Background technique

With the development of society, the buildings in the city show an increasing trend, more and more and more intensive development trends. The current buildings are mostly made of reinforced concrete and fully enclosed exterior decoration. This kind of building structure makes the wireless signal greatly affected when it is transmitted in the building.

When a user makes a voice call, moving from the outside to the indoor, the communication signal is weakened or even interrupted during the movement, which seriously affects the communication quality of the user communicating indoors. For example: the underground environment of high-rise buildings represented by underground facilities, or the dense urban environment represented by urban villages. These are blind areas covered by communication network signals. Users will have signal interruption in indoor communication in such an environment. The base station represented by the hotspot area is densely distributed. When the user enters the room from the outdoor, the signal is disordered and unstable. Even the repeated handover between the serving cells due to the dense coverage of the base station affects the communication quality of the user. Waste of network resources; The base station of the urban fringe area represented by the suburbs is distributed in a relatively dispersed environment. The user communicates indoors in the environment, which will result in the inability to stably communicate due to insufficient strength of the signal coverage of the base station, which seriously affects the communication quality of the user. .

Based on the above problems existing in the existing mobile communication in terms of indoor signal coverage, three solutions for solving the above problems are currently proposed:

In the first scheme, the signal coverage coverage of the outdoor macrocell is directed to the indoor, that is, the macrocell signal is directly covered indoors, but the scheme is not obvious due to the influence of the indoor environment, and the macrocell is also easily reduced. The wireless indicator covered by the outdoor signal has a serious communication drop condition.

In the second scheme, an indoor distribution system is added to the signal source, so that regardless of whether the signal source is a microcell or a repeater, only the precise coverage of the RF signal strength is used. The principle is that one signal source uses multiple antennas for radiation, which will be more The transmit or receive data of the antennas are superimposed, so that unnecessary signals are transmitted in the downlink channels of the respective antennas, resulting in waste of energy. At the same time, noise or interference is added during the uplink signal superposition process, which seriously affects the communication quality.

It can be seen that the first scheme and the second scheme cannot fundamentally solve the problem of indoor signal coverage in the current communication network. With the development of communication technology, a third scheme emerges, that is, the Femt o architecture is implemented. Signal coverage indoors. Combined with the outdoor macrocell base station and the indoor Femt o base station, although the integrity of the signal coverage of the indoor and outdoor communication networks is ensured, in the large-scale networking or stencil networking, the Femto architecture is used indoors. Signal coverage also has the following problems:

1. Femto base station coverage is small, and the number of Femto base stations deployed is large. When communicating indoors, multiple Femto base stations are frequently switched, which increases the overhead of the communication system.

2. The contradiction between frequency usage and control interference is difficult to solve. In the scenario where the Femto base station is covered by the signal, each Femto base station serves a total of four users. If each Femto base station is allocated independent spectrum resources, it will cause a large amount of frequency resource waste, but if the shared frequency resource is utilized, However, centralized radio resource management cannot be performed, and it is impossible to cope with the external control of the Femto base station.

In summary, in the prior art, when the indoor base station covers a limited range, when the user terminal performs frequent handover between multiple indoor base stations, the network side continuously responds to the handover message of the user terminal. , causing waste of resources on the network side and affecting the user experience.

Summary of the invention

The embodiment of the invention provides a communication system, device and method based on indoor signal coverage, which is used to solve the problem that in the prior art, when the mobile terminal moves from the outdoor to the indoor, the coverage of the indoor base station is limited, so that the user terminal is more When frequent switching between indoor base stations occurs, the network side continuously responds to the switching message of the user terminal, causing waste of resources on the network side.

A communication system based on indoor signal coverage, comprising: a central control device and a plurality of distributed control devices that communicate through a local wired or wireless network, and a convergence gateway that communicates with the central control device through an IP public network link, wherein:

a central control device, configured to: when the mobile terminal enters the indoor base station signal coverage area from the macro base station signal coverage area, move the location information after the mobile terminal enters the indoor signal coverage area, determine the area to which the location information belongs, and according to the received The distribution control device deployed in the area, by using the radio resource information broadcasted by the common channel, selects one of the distribution control devices, and sends a scheduling instruction to the distribution control device, where the scheduling instruction includes the mobile terminal identifier;

a plurality of distribution control devices, configured to provide wireless communication for the mobile terminal corresponding to the mobile terminal identifier included in the scheduling instruction, and provide uplink service fed back by the mobile terminal, by using a dedicated channel when receiving the scheduling instruction sent by the central control device The message is sent to the central control device;

The aggregation gateway is configured to distribute the uplink service message fed back by the mobile terminal that is forwarded by the control device in each area where the IP public network link center control device is aggregated, and transmit the uplink service message to the core network.

A central control device based on indoor signal coverage, comprising:

a location information acquiring module, configured to enter, in a mobile terminal, a signal coverage area of the indoor base station from a signal coverage area of the macro base station In the domain, the location information of the location information is determined according to the location information of the mobile terminal after entering the indoor signal coverage area; the distribution control device management module is configured to broadcast according to the distributed control device deployed in the area to be received through the common channel. Radio resource information, selecting one of the distribution control devices, sending a scheduling instruction to the distribution control device, and instructing the distribution control device that receives the scheduling instruction to provide wireless communication for the mobile terminal corresponding to the mobile terminal identifier included in the scheduling instruction, where The scheduling instruction includes a mobile terminal identifier;

The signaling receiving module is configured to receive an uplink service message fed back by the mobile terminal forwarded by the distributed control device. A distributed control device based on indoor signal coverage, comprising:

a wireless communication processing module, configured to: when receiving the scheduling instruction sent by the central control device, provide wireless communication to the mobile terminal corresponding to the mobile terminal identifier included in the scheduling instruction by using a dedicated channel, where the scheduling instruction is a central control When the mobile terminal enters the indoor base station signal coverage area from the macro base station signal coverage area, the device determines the area to which the location information belongs according to the location information of the mobile terminal after moving into the indoor signal coverage area, and according to the received radio resource information that is broadcasted. Sent after making a selection;

The network backhaul module is configured to send an uplink service message fed back by the mobile terminal to the central control device.

A communication method based on indoor signal coverage, comprising:

When detecting that the mobile terminal enters the indoor base station signal coverage area from the macro base station signal coverage area, the central control device determines the area to which the location information belongs according to the location information of the mobile terminal after moving into the indoor signal coverage area; the central control device receives the The distribution control device deployed in the area, by using the radio resource information broadcasted by the common channel, selects one of the distribution control devices, and sends a scheduling instruction to the distribution control device, where the scheduling instruction includes the mobile terminal identifier;

When receiving the scheduling instruction sent by the central control device, the multiple distribution control devices provide wireless communication for the mobile terminal corresponding to the mobile terminal identifier included in the scheduling instruction through the dedicated channel, and send the uplink service message fed back by the mobile terminal to Central control equipment;

The central control device aggregates the received uplink service message fed back by the mobile terminal forwarded by the control device in each area, and then transmits the message to the aggregation gateway through the IP public network link, and transmits the message to the core network through the aggregation gateway.

The beneficial effects of the present invention are as follows:

In the embodiment of the present invention, a central control device and a plurality of distributed control devices are deployed in an indoor signal coverage area, and the central control device and the plurality of distributed control devices communicate through a local wired or wireless network, and the central control device is in the mobile terminal from the macro base station. When the signal coverage area enters the indoor signal coverage area, the location information of the location information is determined according to the location information of the mobile terminal after moving into the indoor signal coverage area, and is broadcasted through the common channel according to the received distribution control device deployed in the area. Radio resource information, selecting one of the distribution control devices, sending a scheduling instruction to the distribution control device, indicating a distribution control device that receives the scheduling instruction sent by the central control device, Providing wireless communication to the mobile terminal corresponding to the mobile terminal identifier included in the scheduling instruction by using a dedicated channel, and transmitting the uplink service message fed back by the mobile terminal to the central control device, where the mobile terminal covers the indoor signal compared with the prior art. The operation of switching within the scope is managed by the central control device. It does not need to be reported to the core network side, which reduces the overhead of the core network signaling, saves the network resources of the core network, reduces the overall interference of the communication system, and realizes the indoor signal. Good communication coverage. DRAWINGS

1 is a schematic structural diagram of a communication system based on indoor signal coverage according to Embodiment 1 of the present invention; FIG. 2 is a schematic structural diagram of radio resource carrier information belonging to a dedicated channel allocated by a central control device for a distributed control device;

3 is a schematic structural diagram of a central control device based on indoor signal coverage according to Embodiment 2 of the present invention; FIG. 4 is a schematic structural diagram of a distributed control device based on indoor signal coverage according to Embodiment 3 of the present invention; A flowchart of a communication method based on indoor signal coverage of Embodiment 4 of the present invention. detailed description

In order to achieve the object of the present invention, an embodiment of the present invention provides a communication method, device, and system based on indoor signal coverage, by deploying a central control device and a plurality of distributed control devices, a central control device, and multiple The distribution control device communicates through a local wired or wireless network, and the central control device determines the location information according to the location information of the mobile terminal after moving into the indoor signal coverage area when the mobile terminal enters the indoor signal coverage area from the macro base station signal coverage area. An area, and according to the received wireless resource information broadcasted by the distribution control device deployed in the area, select one of the distribution control devices, and send a scheduling instruction to the distribution control device, indicating that the central control device sends the notification The distribution control device of the scheduling instruction provides wireless communication for the mobile terminal corresponding to the mobile terminal identifier included in the scheduling instruction through a dedicated channel, and sends the uplink service message fed back by the mobile terminal to the central control Compared with the prior art, the operation of the mobile terminal to perform handover in the indoor signal coverage is managed by the central control device, and does not need to be reported to the core network side, thereby reducing the overhead of the core network signaling and saving the network of the core network. The resources, while reducing the overall interference of the communication system, achieve good communication of indoor signal coverage.

The various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Embodiment 1:

FIG. 1 is a schematic structural diagram of a communication system based on indoor signal coverage according to Embodiment 1 of the present invention, The system includes: a central control device 11 that communicates over a local wired or wireless network, a plurality of distributed control devices 12, and a convergence gateway 13 that communicates with the central control device over an IP public network link, where:

The central control device 11 is configured to: when the mobile terminal enters the indoor signal coverage area from the signal coverage area of the macro base station, determine the area to which the location information belongs according to the location information of the mobile terminal after moving into the indoor signal coverage area, and according to the received The distribution control device deployed in the area selects one of the distribution control devices by using the radio resource information broadcasted by the common channel, and sends a scheduling instruction to the distribution control device, where the scheduling instruction includes the mobile terminal identifier.

The plurality of distribution control devices 12 are configured to, when receiving the scheduling instruction sent by the central control device, provide wireless communication to the mobile terminal corresponding to the mobile terminal identifier included in the scheduling instruction by using a dedicated channel, and send the mobile terminal feedback uplink. The business message is sent to the central control device.

The aggregation gateway 13 is configured to distribute the uplink service message fed back by the mobile terminal that is forwarded by the control device in each area that is aggregated by the IP public network chain, and transmit the uplink service message to the core network.

Specifically, a central control device and a plurality of distributed control devices in a set area form a local area network, which constitutes a logical cell within the coverage of the core network, and information interaction between all mobile terminals and the core network in the set area The signaling and data are forwarded through the luh interface via the central control device, and the central control device communicates with the plurality of distributed control devices over a wired or wireless network.

When the mobile terminal enters the indoor base station signal coverage area from the macro cell signal coverage area, when the core network detects that the mobile terminal needs to perform inter-base station handover, the handover message is sent to the central control device of the indoor signal coverage area that the mobile terminal is about to enter. Instructing the central control device to perform a handover service for the mobile terminal.

The central control device 11 is configured to determine, according to the mobile terminal entering the indoor signal coverage area and the moving path, determine an area through which the mobile terminal moves the path, and broadcast according to the distributed control device deployed in the area to be received through the common channel. The radio resource information, select one of the distributed control devices, and send a scheduling instruction to the distributed control device.

Specifically, the central control device 11 is configured to receive, in real time, radio resource information that is broadcast by the distribution control device through a common channel, and determine, by using the received radio resource information, usage information of the current radio resource of the distribution control device, where: The radio resource information includes identification information of an area to which the distribution control device belongs, radio resource carrier information to which the distribution control device is allocated, and usage status information of the current radio resource.

The central control device 11 is specifically configured to compare the received radio resource information broadcasted by the distributed control device deployed in the area to the public channel, and compare the use status information of the radio resource in the radio resource information to determine A distributed control device having a lower usage rate of radio resources, using the determined distributed control device as a preferred distributed control device, and transmitting a scheduling instruction to the distributed control device. Preferably, the central control device 11 is further configured to allocate, to the plurality of distributed control devices, the same radio resource carrier information belonging to the common channel, and to the plurality of distributed control devices, before determining the location information of the mobile terminal. The radio resource carrier information belonging to the dedicated channel is allocated, wherein the radio resource carrier information of the common channel allocated for the plurality of distributed control devices is different from the radio resource carrier information of the dedicated channel.

It is assumed that there are four distributed control devices currently controlled by the central control device, and the carrier information of the wireless resources that can be allocated includes: C0, Cl, C2, C3, and C4, and then the central control device allocates carrier information of the wireless resource of CO to All distributed control devices controlled, as radio resources of common channels of all distributed control devices; the central control device allocates carrier information of radio resources such as Cl, C2, C3 and C4 to all distributed control devices controlled as all distributed control devices The radio resources of the proprietary channel.

Preferably, the central control device 11 is specifically configured to allocate, according to different areas deployed by the distributed control device, frequency of radio resource carrier information used by the dedicated channel for each distributed control device, where:

When the areas where the two distributed control devices are deployed do not have the adjacency relationship, the frequency of the wireless resource carrier information allocated to the two distributed control devices is the same;

When the areas to which the two distributed control devices belong have an adjacent relationship, the frequency of the wireless resource carrier information allocated for the two distributed control devices is different.

Preferably, the distribution control device 12 includes: a primary distribution control device having a large coverage area of the carrier information and a secondary distribution control device having a carrier information coverage area smaller than the primary distribution control device;

The wireless signal coverage area of the primary distribution control device belongs to the common area, and the wireless signal coverage area of each distribution control device belongs to the private area, and each of the private areas from the wireless signal coverage area of the distribution control device belongs to.

The wireless signal coverage area of the primary distribution control device and the wireless signal coverage area of the distribution control device have overlapping areas of wireless signals, thereby avoiding blind spots of wireless signals in the indoor signal coverage area.

Preferably, when a region has a small area and a main distributed control device can implement management of wireless signals in the region, the region only needs one main distributed control device; when a region has a large area and a main distribution When the control device is unable to manage the wireless signal in the area, the area can be managed by a main distributed control device and a plurality of management methods combined from the distributed control device, wherein each of the wireless signals is managed. The wireless signals in a fixed area are managed from the distributed control device, and the wireless signal areas managed from the distributed control device do not intersect.

Preferably, the center control device specifically uses the frequency of the radio resource carrier information allocated by the main distributed control device to be higher than the frequency of the radio resource carrier information allocated by each of the distributed control devices.

For example: as shown in FIG. 2, a radio resource belonging to a dedicated channel allocated by the central control device for the distributed control device A schematic diagram of the structure of the carrier information, wherein the indoor signal coverage area is assumed to be within a building. 'The frequency of the wireless signal allocated by each distribution control device exceeds the set distance, and the power is 0. The wireless resource carrier information that the central control device can allocate. For C0, Cl, C2, C3 and C4, specifically include:

First, the central control device determines the distribution control equipment needed in the building.

Specifically, six distributed control devices are required in the building, wherein one main distributed control device performs wireless signal management for the public area of the building; the first layer deploys two slave distributed control devices, which are deployed on the first floor. Wireless signal management for the private area on the first floor of the building in both directions; a distributed control device on the third floor, deployed on the third floor, for wireless signal management in the private area of the third floor of the building; The five-layer deployment of two slave distributed control devices, deployed in the opposite two directions of the fifth layer, performs wireless signal management for the private area of the fifth floor of the building.

It should be noted that the wireless signal coverage area of the primary distribution control device for covering the public area and the wireless signal coverage area of each of the distribution control devices for covering the private area have a small coverage area for overlapping the signal.

Secondly, the central control device allocates radio resource carrier information belonging to the dedicated channel to the main distributed control device as C1 and C2.

Wherein: C1 is used to cover the area formed on the outside of the building around the bottom of the building and to create an overlapping area with the coverage of the macrocell; C2 is used to cover the common area of the building to form a coverage area, and the distributed control is deployed with each layer. The wireless signal resources covered by the device form an overlapping area.

Third, the central control device allocates radio resource carrier information belonging to the dedicated channel from the distributed control device to C3 and C4.

The radio resource carrier information of the distribution control device on different floors may be the same, for example: the distribution control device of the first layer deployment and the radio resource carrier information allocated by the distribution control device deployed by the fifth layer are the same (may be C3) The radio resource carrier information (which may be C4) allocated from the distributed control device and the third layer deployed from the distributed control device is different, so that the multiplexing of the radio resource information is realized, and the radio resources are saved. .

Fourth, the central control device allocates radio resource carrier information belonging to the public channel to C0 for all distributed control devices controlled.

Among them: Radio resource carrier information The frequency of CO is higher than the frequencies of Cl, C2, C3 and C4.

In this way, when the mobile terminal moves within the indoor signal coverage, each distribution control device provides a wireless communication service for the mobile terminal under the scheduling instruction of the central control device, thereby implementing a seamless handover service for the wireless communication of the mobile terminal without going through the core network. The signaling overhead of the core network is saved, and the waste of network resources is avoided.

The central control device 11 is further configured to aggregate the uplink service messages fed back by the mobile terminal that are received by the different distributed control devices, and send the uplink service messages to the aggregation gateway 13 through the IP public network link.

It should be noted that the aggregation gateway may be a Femto gateway or other gateway device, which is used to implement The aggregation and forwarding function of the service information between the central control device and the core network may be, and there is no limitation here. With the solution of the first embodiment of the present invention, a central control device and a plurality of distributed control devices are deployed in the indoor signal coverage area, and the central control device and the plurality of distributed control devices communicate through a local wired or wireless network, and the central control device is moving. When the terminal enters the indoor signal coverage area from the signal coverage area of the macro base station, determining the area to which the location information belongs according to the location information of the mobile terminal after moving into the indoor signal coverage area, and according to the received distribution control device deployed in the area Radio resource information of the common channel broadcast, selecting one of the distribution control devices, and transmitting a scheduling instruction to the distribution control device, indicating that the distribution control device that receives the scheduling instruction sent by the central control device is included in the scheduling instruction through the dedicated channel The mobile terminal corresponding to the mobile terminal identifier provides wireless communication, and sends the uplink service message fed back by the mobile terminal to the central control device. Compared with the prior art, the mobile terminal performs the operation of switching within the indoor signal coverage. The central control device management does not need to be reported to the core network side, which reduces the overhead of the core network signaling, saves the network resources of the core network, reduces the overall interference of the communication system, and achieves good communication of indoor signal coverage.

Embodiment 2:

As shown in FIG. 3, it is a schematic structural diagram of a central control device based on indoor signal coverage according to Embodiment 2 of the present invention. The device includes: a location information acquiring module 21, a distributed control device management module 22, and a signaling receiving module 23 , among them:

The location information obtaining module 21 is configured to: when the mobile terminal enters the indoor base station signal coverage area from the macro base station signal coverage area, determine the area to which the location information belongs according to the location information that the mobile terminal moves after entering the indoor signal coverage area;

The distribution control device management module 22 is configured to select one of the distribution control devices according to the received radio resource information broadcasted by the distribution control device deployed in the region, and send a scheduling instruction to the distribution control device, and instruct to receive The distribution control device to the scheduling instruction provides wireless communication for the mobile terminal corresponding to the mobile terminal identifier included in the scheduling instruction, where the scheduling instruction includes the mobile terminal identifier;

The signaling receiving module 23 is configured to receive an uplink service message fed back by the mobile terminal forwarded by the distributed control device. Preferably, the central control device further includes: a radio resource management module 24, where:

The radio resource management module 24 is configured to allocate, by the plurality of distributed control devices, one radio resource carrier information that belongs to the common channel, and allocate radio resource carrier information that belongs to the dedicated channel to the multiple distributed control devices, where multiple distributed control The radio resource carrier information of the common channel allocated by the device is different from the radio resource carrier information of the dedicated channel.

Specifically, the radio resource management module 24 is specifically configured to: according to different areas deployed by the distributed control device, the frequency of the radio resource carrier information of the dedicated channel allocated for each distributed control device is different, where: When the areas where the two distributed control devices are deployed do not have the adjacency relationship, the frequency of the radio resource carrier information allocated to the two distributed control devices is the same;

Preferably, the distribution control device comprises: a main distribution control device having a large coverage area of the carrier information and a slave distribution control device having a coverage area smaller than the main distribution control device;

The radio resource management module 24 specifically uses the frequency of the radio resource carrier information allocated by the main distributed control device to be higher than the frequency of the radio resource carrier information allocated by each of the distributed control devices.

Preferably, the central control device further includes: a message forwarding module 25, where:

The message forwarding module 25 is configured to aggregate the uplink service messages fed back by the mobile terminal forwarded by the distributed control device in each area, and then send the uplink service message to the aggregation gateway through the IP public network link.

Embodiment 3:

As shown in FIG. 4, it is a schematic structural diagram of a distributed control device based on indoor signal coverage according to Embodiment 3 of the present invention. The distributed control device includes: a wireless signal processing module 31 and a network backhaul module 32, where:

The wireless signal processing module 31 is configured to: when receiving the scheduling instruction sent by the central control device, provide wireless communication to the mobile terminal corresponding to the mobile terminal identifier included in the scheduling instruction by using a dedicated channel, where the scheduling instruction is a center When the mobile terminal enters the indoor base station signal coverage area from the macro base station signal coverage area, the control device determines the area to which the location information belongs according to the location information of the mobile terminal after moving into the indoor signal coverage area, and according to the received broadcasted radio resource. The information is sent after selection;

The network backhaul module 32 is configured to send an uplink service message fed back by the mobile terminal to the central control device.

Preferably, the wireless signal processing module 31 is further configured to broadcast its own wireless resource information through a common channel, and provide a wireless communication service for the mobile terminal corresponding to the mobile terminal identifier included in the scheduling instruction by using a dedicated channel.

Specifically, the distribution control device includes: a primary distribution control device having a large coverage area of the carrier information and a secondary distribution control device having a coverage area smaller than the primary distribution control device, wherein:

The frequency of the radio resource carrier information of the primary distribution control device is higher than the frequency of the radio resource carrier information of each of the distributed control devices.

Preferably, the wireless distribution of the primary distributed control device is greater than the coverage of the wireless signal from the distributed control device.

The wireless signal coverage area of the primary distribution control device belongs to a common area, and the wireless signal coverage area of each distribution control device belongs to a private area, and each private area from the wireless signal coverage area of the distribution control device does not belong to Same

The output power of the bit stream on the air interface link of the primary distribution control device is higher than the output power of the bit stream from the air interface link of the distributed control device.

Embodiment 4:

As shown in FIG. 5, it is a flowchart of a communication method based on indoor signal coverage according to Embodiment 4 of the present invention, where the method includes:

Step 101: When detecting that the mobile terminal enters the indoor base station signal coverage area from the macro base station signal coverage area, the central control device determines the area to which the location information belongs according to the location information that the mobile terminal moves after entering the indoor signal coverage area.

Specifically, in step 101, before the central control device is deployed, the following operations are required: allocating one same radio resource carrier information belonging to the common channel to the plurality of distributed control devices, and assigning the plurality of distributed control devices to belong to the plurality of distributed control devices The radio resource carrier information of the dedicated channel, wherein the radio resource carrier information of the common channel allocated by the plurality of distribution control devices is different from the radio resource carrier information of the dedicated channel.

The central control device is specifically configured to allocate, according to different areas deployed by the distributed control device, frequency of radio resource carrier information used by the dedicated channel for each distributed control device, where:

When the areas to which the two distributed control devices belong have an adjacent relationship, the frequency of the wireless resource bearer information allocated for the two distributed control devices is different.

The distributed control device includes: a primary distribution control device having a large coverage area of the carrier information and a secondary distribution control device having a carrier information coverage area smaller than the primary distribution control device;

The frequency of the radio resource bearer information allocated by the central control device as the main distributed control device is higher than the frequency of the radio resource carrier information allocated by the central control device for each distributed control device.

Step 102: The central control device selects one of the distributed control devices according to the received wireless resource information broadcasted by the public channel in the distributed control device deployed in the area, and sends a scheduling instruction to the distributed control device.

The scheduling instruction includes a mobile terminal identifier.

Step 103: When receiving the scheduling instruction sent by the central control device, the multiple distribution control devices provide wireless communication for the mobile terminal corresponding to the mobile terminal identifier included in the scheduling instruction through the dedicated channel, and provide the uplink service fed back by the mobile terminal. The message is sent to the central control device.

Step 104: The central control device aggregates the received uplink service message fed back by the mobile terminal forwarded by the distribution control device in each area, and then transmits the message to the aggregation gateway through the IP public network link, and transmits the message to the core through the aggregation gateway. Heart net.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

Rights request

1. A communication system based on indoor signal coverage, characterized by including: a central control device and multiple distributed control devices that communicate through a local wired or wireless network, and communicate with the central control device through an IP public network link aggregation gateway, where:

The central control device is used to determine the area to which the location information belongs based on the location information that the mobile terminal moved after entering the indoor signal coverage area when the mobile terminal enters the indoor base station signal coverage area from the macro base station signal coverage area, and based on the received location information. The distributed control devices deployed in the corresponding area broadcast wireless resource information through the public channel, select one of the distributed control devices, and send a scheduling instruction to the distributed control device, where the scheduling instruction includes the mobile terminal identifier;

A plurality of distributed control devices, configured to provide wireless communication through a dedicated channel for the mobile terminal corresponding to the mobile terminal identification included in the scheduling instruction when receiving the scheduling instruction sent by the central control device, and provide uplink services fed back by the mobile terminal. The message is sent to the central control device;

The aggregation gateway is used to receive the uplink service messages forwarded by the mobile terminals fed back by the distributed control devices in each area aggregated by the central control device through the IP public network link, and transmit the uplink service messages to the core network.

2. The system of claim 1, characterized in that,

The central control device is also configured to allocate the same wireless resource carrier information belonging to a common channel to multiple distributed control devices, and allocate wireless resource carrier information belonging to a dedicated channel to multiple distributed control devices, where, is multiple distributed control devices. The radio resource carrier information of the public channel allocated by the distribution control device is different from the radio resource carrier information of the dedicated channel.

3. The system of claim 2, characterized in that,

The central control device is specifically used to allocate the frequency of the wireless resource carrier information used by the dedicated channel to each distributed control device according to the area where the distributed control device is deployed, where:

When the areas where two distributed control devices are deployed do not have an adjacent relationship, the frequency of the wireless resource carrier information allocated to the two distributed control devices is the same;

When the areas to which two distributed control devices belong have an adjacent relationship, the frequencies of wireless resource carrier information allocated to the two distributed control devices are different.

4. The system of claim 3, characterized in that,

The distribution control device includes: a master distribution control device with a larger carrier information coverage area and a slave distribution control device with a smaller carrier information coverage area than the master distribution control device;

The central control device is specifically used to allocate wireless resource carrier information to the main distribution control device with a frequency higher than The frequency of each radio resource carrier information allocated from the distribution control device.

5. A central control device based on indoor signal coverage, characterized by including:

The location information acquisition module is used to determine the area to which the location information belongs based on the location information that the mobile terminal moved after entering the indoor signal coverage area when the mobile terminal enters the indoor base station signal coverage area from the macro base station signal coverage area; Distributed control equipment management module , used to select one of the distributed control devices based on the received wireless resource information broadcast by the distributed control devices deployed in the corresponding area through the public channel, send a scheduling instruction to the distributed control device, and instruct the distributed control device that received the scheduling instruction. The device provides wireless communication for the mobile terminal corresponding to the mobile terminal identification included in the scheduling instruction, wherein the scheduling instruction includes the mobile terminal identification;

The signaling receiving module is configured to receive the uplink service message fed back by the mobile terminal forwarded by the distributed control device.

6. The central control device according to claim 5, wherein the central control device further includes: a wireless resource management module, configured to allocate the same wireless resource carrier information belonging to a common channel to multiple distributed control devices. , and allocate wireless resource carrier information belonging to the dedicated channel to multiple distributed control devices, where the wireless resource carrier information of the common channel allocated by the multiple distributed control devices is different from the wireless resource carrier information of the dedicated channel.

7. The central control device according to claim 6, characterized in that,

The wireless resource management module is specifically used to allocate the frequency of the wireless resource carrier information used by the dedicated channel to each distributed control device according to the area where the distributed control device is deployed, where:

8. The central control device according to claim 7, wherein the distribution control device includes: a master distribution control device with a larger carrier information coverage area and a slave distribution control device with a carrier information coverage area smaller than the main distribution control device. distributed control equipment;

The wireless resource management module is specifically configured to set the frequency of the wireless resource carrier information allocated by the master distribution control device to be higher than the frequency of the wireless resource carrier information allocated by each slave distribution control device.

9. The central control device according to any one of claims 5 to 8, characterized in that the central control device further includes:

The message forwarding module is used to aggregate the received uplink service messages fed back by mobile terminals forwarded by distributed control devices in each area and then send them to the aggregation gateway through the IP public network link.

10. A distributed control device based on indoor signal coverage, characterized by including: A wireless signal processing module, configured to provide wireless communication through a dedicated channel for the mobile terminal corresponding to the mobile terminal identification included in the scheduling instruction when receiving a scheduling instruction sent by the central control device, wherein the scheduling instruction is a central control device. When the mobile terminal enters the indoor base station signal coverage area from the macro base station signal coverage area, the device determines the area to which the location information belongs based on the location information that the mobile terminal moved after entering the indoor signal coverage area, and based on the received wireless resource information through broadcast Sent after selection;

The network backhaul module is used to send the uplink service messages fed back by the mobile terminal to the central control device.

11. The distribution control device according to claim 10, characterized in that, the distribution control device includes: a master distribution control device with a larger carrier information coverage area and a slave distribution control device with a carrier information coverage area smaller than the master distribution control device. Control equipment, where:

The frequency of the radio resource carrier information of the master distributed control device is higher than the frequency of the radio resource carrier information of each slave distributed control device.

12. A communication method based on indoor signal coverage, characterized by including:

When the central control equipment detects that the mobile terminal enters the indoor base station signal coverage area from the macro base station signal coverage area, it determines the area to which the location information belongs based on the location information of the mobile terminal moving after entering the indoor signal coverage area; the central control equipment determines the area to which the location information belongs based on the received The distributed control devices deployed in the area select one of the distributed control devices through the public channel to broadcast the wireless resource information, and send a scheduling instruction to the distributed control device, where the scheduling instruction includes the mobile terminal identifier;

When multiple distributed control devices receive the scheduling instruction sent by the central control device, they provide wireless communication for the mobile terminal corresponding to the mobile terminal identification included in the scheduling instruction through a dedicated channel, and send the uplink service message fed back by the mobile terminal to central control equipment;

The central control device aggregates the received uplink service messages fed back by mobile terminals forwarded by distributed control devices in each area and transmits them to the aggregation gateway through the IP public network link, and then transmits them to the core network through the aggregation gateway.

13. The method of claim 12, wherein the method further includes:

Before sending a scheduling instruction, the central control device allocates the same wireless resource carrier information belonging to a common channel to multiple distributed control devices, and allocates wireless resource carrier information belonging to a dedicated channel to multiple distributed control devices, where multiple distributed control devices The radio resource carrier information of the public channel allocated by the distribution control device is different from the radio resource carrier information of the dedicated channel.