CN105578559A - Access method, device and system under ultra-dense networking - Google Patents

Abstract

The invention provides an access method, a device and a system under ultra-dense networking, and relates to the field of communication. A user terminal which is in a moving state or a static state can be directly accessed to a micro-base station, thereby ensuring current dividing ability of the micro-base station and avoiding fringe effects. The access method comprises steps that a macro-base station obtains inquiry information and signal measuring information sent by a user terminal, wherein the inquiry information is used for indicating the macro-base station to distribute a to-be-accessed micro-base station to the user terminal; the macro-base station obtains the to-be-accessed micro-base station from all micro-base stations in the preset range of a user terminal according to signal measurement information; the macro-base station sends an access instruction to the to-be-accessed micro-base station, wherein the access instruction is used for indicating the to-be-accessed micro-base station to provide business services for the user terminal; and the macro-base station sends a user identification and information of the to-be-accessed micro-base station to the user terminal so as to allow the user terminal to be accessed to the micro-base station according to the user identification.

Description

Access method, device and system under ultra-dense networking

technical field

The present invention relates to the communication field, in particular to an access method, device and system under ultra-dense networking.

Background technique

With the continuous development of communication technology, users' demand for mobile data services is also increasing day by day. The heterogeneous topological network emerging in the era of 4G (the4thGeneration mobile communication, fourth-generation mobile communication technology) is different from the traditional homogeneous topological network structure. It is composed of computers, network equipment and systems produced by different manufacturers, and in most cases Running on different protocols supports different functions or applications. Among them, UDN (Ultra-Dense Network, ultra-dense network) is a heterogeneous topology network that makes network nodes closer to user terminals and can improve power and spectrum efficiency. However, due to the high density of network nodes in the existing UDN, the coverage of each network node is very small. When the user terminal moves at high speed, the user terminal needs to frequently switch from one network node to another network node, which affects the service flow. mobility and connectivity.

In order to solve the above problems, the existing UDN usually allows micro base stations to serve low-speed mobile user terminals, and macro base stations to serve high-speed mobile user terminals, so as to prevent high-speed mobile user terminals from frequently switching service base stations from dropping calls and occupying more space. Problems with system resources. However, in the scenario of high-density deployment of micro base stations, the requirement on the mobility rate of user terminals will become very low. The number of user terminals that the micro base station can provide services will also be limited. In most cases, the macro base station still needs to bear a large business load, which reduces the traffic distribution capability of the micro base station.

Contents of the invention

Embodiments of the present invention provide an access method, device, and system under ultra-dense networking, which can enable user terminals in a mobile state or a static state to always access a micro base station, thereby ensuring the offload capability of the micro base station and avoiding edge effects.

An embodiment of the present invention provides an access method under ultra-dense networking, including:

The macro base station acquires inquiry information and signal measurement information sent by the user terminal, where the inquiry information is used to instruct the macro base station to allocate a micro base station to be accessed for the user terminal;

The macro base station acquires the micro base station to be accessed from all micro base stations within a preset range including the location of the user terminal according to the signal measurement information;

The macro base station sends an access indication to the micro base station to be accessed, where the access indication is used to instruct the micro base station to be accessed to provide business services for the user terminal;

The macro base station sends the user identifier and the information of the micro base station to be accessed to the user terminal, so that the user terminal accesses the micro base station to be accessed according to the user identifier.

In the access method under the ultra-dense networking provided by the embodiment of the present invention, since the macro base station can select a suitable micro base station to be accessed for the user terminal according to the signal measurement information, the user terminal in the moving state or the static state Direct access to the micro base station, so as to ensure the offload capability of the micro base station and avoid edge effects.

Optionally, the signal measurement information includes signal strengths detected by the user terminal of all micro base stations within a preset range including the location of the user terminal;

The macro base station acquires the micro base station to be accessed from all micro base stations within a preset range including the location of the user terminal according to the signal measurement information, specifically including:

The macro base station acquires a candidate micro base station, where the candidate micro base station is all micro base stations whose signal strength is greater than a first preset threshold within a preset range including the location of the user terminal;

The macro base station acquires the micro base station to be accessed according to the attribute information of the candidate micro base station, where the attribute information of the candidate micro base station includes at least load information of the candidate micro base station.

An embodiment of the present invention provides an access method under ultra-dense networking, including:

The user terminal sends inquiry information and signal measurement information to the macro base station, so that the macro base station obtains the micro base station to be accessed from all micro base stations within a preset range including the location of the user terminal according to the signal measurement information. The base station, wherein the inquiry information is used to instruct the macro base station to allocate a micro base station to be accessed for the user terminal;

The user terminal receives the user identifier sent by the macro base station and the information of the micro base station to be accessed;

The user terminal accesses the micro base station to be accessed according to the user identifier.

Optionally, before the user terminal sends inquiry information and signal measurement information to the macro base station, the method further includes:

The user terminal detects signal strengths of all micro base stations within a preset range including the location of the user terminal, and generates the signal measurement information.

Optionally, before the inquiry information and signal measurement information sent by the user terminal to the macro base station, if the user terminal has already connected to the micro base station;

Before the inquiry information and signal measurement information sent by the user terminal to the macro base station, the method further includes:

The user terminal detects the signal strength of the accessed micro base station;

If the signal strength of the accessed micro base station is less than the second preset threshold, and the signal strength of any one of all micro base stations within the preset range including the location of the user terminal is greater than the third preset threshold, then The user terminal generates inquiry information;

After the user terminal accesses the micro base station to be accessed according to the user identifier, the method further includes:

The user terminal disconnects from the accessed micro base station.

An embodiment of the present invention provides an access method under ultra-dense networking, including:

The micro base station to be accessed receives an access indication sent by the macro base station, where the access indication is used to instruct the micro base station to be accessed to provide service for the user terminal;

The micro base station to be accessed allows the user terminal to access, and provides service for the user terminal.

An embodiment of the present invention provides a macro base station, including:

An acquisition module, configured to acquire inquiry information and signal measurement information sent by the user terminal, where the inquiry information is used to instruct the macro base station to assign the user terminal to a micro base station to be accessed;

a screening module, configured to obtain the query information and signal measurement information sent by the user terminal according to the signal measurement information from all micro base stations within a preset range including the location of the user terminal after the obtaining module obtains the To be connected to the micro base station;

A sending module, configured to send an access indication to the micro base station to be accessed, where the access indication is used to instruct the micro base station to be accessed to provide business services for the user terminal; and send a user identifier and the micro base station to be accessed The information about accessing the micro base station is sent to the user terminal, so that the user terminal accesses the micro base station to be accessed according to the user identifier.

Optionally, the signal measurement information includes signal strengths detected by the user terminal of all micro base stations within a preset range including the location of the user terminal;

The screening module is specifically configured to acquire candidate micro base stations, where the candidate micro base stations are all micro base stations whose signal strength is greater than a first preset threshold within a preset range including the location of the user terminal; according to the candidate Select attribute information of the micro base station to acquire the micro base station to be accessed, wherein the attribute information of the candidate micro base station includes at least load information of the candidate micro base station.

An embodiment of the present invention provides a user terminal, including:

A sending module, configured to send inquiry information and signal measurement information to the macro base station, so that the macro base station obtains the pending accessing the micro base station, wherein the inquiry information is used to instruct the macro base station to assign the micro base station to be accessed for the user terminal;

a receiving module, configured to receive the user identification sent by the macro base station and the information of the micro base station to be accessed;

A processing module, configured to access the micro base station to be accessed according to the user identifier.

Optionally, the user terminal also includes:

A detection module, configured to detect the signal strength of all micro base stations within a preset range including the location of the user terminal before the sending module sends inquiry information and signal measurement information to the macro base station;

A generating module, configured to generate the signal measurement information.

Optionally, if the user terminal has already accessed the accessed micro base station;

The detection module is further configured to detect the signal strength of the accessed micro base station before the inquiry information and signal measurement information sent by the sending module are sent to the macro base station;

The generating module is further configured to if the signal strength of the accessed micro base station is less than a second preset threshold and includes the signal strength of any one of the micro base stations within the preset range of the user terminal location is greater than the third preset threshold, an inquiry message is generated;

The processing module is further configured to disconnect the connected micro base station after the processing module accesses the micro base station to be accessed according to the user identifier.

An embodiment of the present invention provides a micro base station to be accessed, including:

A receiving module, configured to receive an access indication sent by the macro base station, where the access indication is used to instruct the micro base station to be accessed to provide service for the user terminal;

A processing module, configured to allow the user terminal to access and provide business services for the user terminal.

An embodiment of the present invention also provides an access system under ultra-dense networking, including a macro base station with any of the above features, a user terminal with any of the above features, and a micro base station to be accessed with any of the above features.

An access method, device, and system under ultra-dense networking provided by an embodiment of the present invention, the access method under ultra-dense networking obtains inquiry information and signal measurement information sent by a user terminal through a macro base station, wherein the inquiry The information is used to instruct the macro base station to allocate the micro base station to be accessed for the user terminal; the macro base station obtains the micro base station to be accessed from all the micro base stations within the preset range including the location of the user terminal according to the signal measurement information; the macro base station sends the access Indicate to the micro base station to be accessed, the access indication is used to instruct the micro base station to be accessed to provide business services for the user terminal; the macro base station sends the user identification and the information of the micro base station to be accessed to the user terminal, so that the user terminal , accessing the micro base station to be accessed. Based on the description of the above embodiments, since the macro base station can select suitable micro base stations for user terminals to access according to the signal measurement information, the user terminals in the moving state or stationary state can always access the micro base stations, thereby ensuring the offloading of the micro base stations ability to avoid edge effects.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a kind of LTE system architecture diagram provided by the embodiment of the present invention;

FIG. 2 is a first schematic flow diagram of an access method in an ultra-dense networking provided by an embodiment of the present invention;

FIG. 3 is a relationship diagram 1 between a location of a user terminal and an LTE system architecture provided by an embodiment of the present invention;

FIG. 4 is a second schematic flow diagram of an access method in an ultra-dense networking provided by an embodiment of the present invention;

FIG. 5 is a second relationship diagram between the location of a user terminal and the LTE system architecture provided by an embodiment of the present invention;

FIG. 6 is a third schematic flow diagram of an access method in an ultra-dense networking provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a macro base station provided by an embodiment of the present invention;

FIG. 8 is a first structural schematic diagram of a user terminal provided by an embodiment of the present invention;

FIG. 9 is a second structural schematic diagram of a user terminal provided by an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a micro base station to be accessed according to an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The technology described in the embodiments of the present invention can be used in various communication systems under ultra-dense networking, such as 2G, 3G, 4G communication systems and next-generation communication systems, such as 2G systems such as Global System for Mobile communications (Global System for Mobile communications, GSM), code 3G systems such as Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, 4G systems such as Long Term Evolution (LTE) systems, and subsequent evolution of LTE standard communication system, or other similar communication systems.

Taking an LTE system as an example, FIG. 1 is an architecture diagram of an LTE system provided by an embodiment of the present invention. The LTE system includes: MME (Mobility Management Entity, mobility management node entity), macro base station and micro base station.

Among them, the MME undertakes the core network control processing part, supports the mobility management function and the activation, modification and deactivation of the user plane bearer, and supports mobility between different 3GPP (3rdGenerationPartnershipProject, Third Generation Partnership Project) access networks, Complete security control, including functions such as authentication, signaling integrity protection, and data encryption.

The macro base station is responsible for managing the micro base stations within its coverage area, and selects the micro base stations to be accessed for user terminals. The macro base station can also include a storage module, which is used to store the location information of each micro base station, current signal strength information, and parameters such as available wireless resources, and store user terminal information, including basic information about user terminals accessing the micro base station, so that the macro base station It has the function of predicting the mobility of the user terminal; the screening module is used to select the appropriate access for the user terminal by calculating the positional relationship and distance between the user terminal and the micro base station, combined with the current wireless resource allocation and utilization status of the micro base station The micro base station; an interaction module, configured to send control information to the user terminal and the micro base station. Specifically, the interaction module may be a sending module and a receiving module.

A micro base station can communicate with one or more macro base stations. When a micro base station is managed by multiple macro base stations at the same time, one of the macro base stations is the main control node, and the other macro base stations are auxiliary control nodes. After the macro base station selects the micro base station to be accessed for the user terminal, the selected micro base station to be accessed only provides data service services for the user according to the configuration information of the macro base station, and is not responsible for control and management functions.

At the same time, the "preset range including the location of the user terminal" mentioned in the embodiment of the present invention means that the user terminal can be located at any position within the preset range. Preferably, the user terminal can be located at the center of the preset range, that is, "The preset range centered on the user terminal". The following embodiments of the present invention are all described in terms of "the preset range centered on the user terminal".

It should also be noted that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

Example 1

An embodiment of the present invention provides an access method under ultra-dense networking, as shown in Figure 2, the asset management method includes:

S101. The user terminal detects signal strengths of all micro base stations within a preset range centered on the user terminal, and generates signal measurement information.

Specifically, the preset range centered on the user terminal may be a preset range. For ease of understanding, we can set the preset range as a circular area, and the user terminal is located at the center of the circular area. All micro base stations within the preset range centered on the user terminal refer to a circle centered on the user terminal. All micro base stations in the area. It should be noted that the preset range centered on the user terminal is not only limited to the circular area described in the above examples, but also regular or irregular areas such as rectangles and ellipses, which are not covered by the present invention. limit.

Further, the signal measurement information generated by the user terminal may be a list, which includes the signal strengths of all micro base stations within a preset range centered on the user terminal. Wherein, the signal strength is used to indicate the strength of the signal between the user terminal and the Femtocell, and the signal strength can be represented by but not limited to the channel quality between the user terminal and the Femtocell.

S102. The user terminal sends inquiry information and signal measurement information to the macro base station.

Wherein, the query information is used to instruct the macro base station to allocate the micro base station to be accessed for the user terminal.

S103. The macro base station acquires inquiry information and signal measurement information sent by the user terminal.

A step corresponding to step S102. In step S102, the user terminal sends inquiry information and signal measurement information to the macro base station. Correspondingly, the macro base station obtains the inquiry information and signal measurement information sent by the user terminal.

S104. According to the signal measurement information, the macro base station obtains the micro base station to be accessed from all micro base stations within a preset range centered on the user terminal.

Specifically, the signal measurement information includes signal strengths of all micro base stations within a preset range centered on the user terminal detected by the user terminal.

Further, according to the signal measurement information, the step of the macro base station obtaining the micro base station to be accessed from all the micro base stations within the preset range centered on the user terminal may specifically include: the macro base station obtaining a candidate micro base station, the candidate micro base station All the micro base stations whose signal strength is greater than the first preset threshold within the preset range centered on the user terminal; the macro base station obtains the micro base station to be accessed according to the attribute information of the candidate micro base station, wherein the first preset threshold It may be agreed between the user terminal and the macro base station according to actual needs, and the attribute information of the candidate micro base station includes at least load information of the candidate micro base station.

S105. The macro base station sends an access indication to the micro base station to be accessed, where the access indication is used to instruct the micro base station to be accessed to provide service for the user terminal.

After the macro base station selects the micro base stations to be accessed, the macro base station needs to determine the cooperation mechanism of these micro base stations to be accessed, such as which base stations carry the voice service of the user terminal, which base stations carry the multimedia service of the user terminal, and so on. Subsequently, the macro base station sends an access indication to the micro base station to be accessed, so that the micro base station to be accessed reserves respective wireless resources to accept users,

S106. The micro base station to be accessed receives an access indication sent by the macro base station.

In a step corresponding to step S105, the macro base station in step S105 sends an access indication to the micro base station to be accessed, and correspondingly, the micro base station to be accessed receives the access indication sent by the macro base station.

S107. The macro base station sends the user identifier and information about the micro base station to be accessed to the user terminal.

It should be noted that the user identifier is used for the user terminal to access the micro base station to be accessed, and the information of the micro base station to be accessed is used by the user terminal to identify whether the micro base station to be accessed is within the preset range centered on the user terminal Which micro base stations in all the micro base stations of .

It should be noted that step S105 and step S107 are not performed sequentially. The macro base station may first send an access instruction to the micro base station to be accessed, and then send the user identifier and the information of the micro base station to be accessed to the user terminal; or First send the user identification and the information of the micro base station to be accessed to the user terminal, and then send the access indication to the micro base station to be accessed; it can also send the access indication to the micro base station to be accessed at the same time, and send the user identification and the micro base station to be accessed. The information of the base station is sent to the user terminal, which is not limited in the present invention.

S108. The user terminal receives the user identifier and information about the micro base station to be accessed sent by the macro base station.

In a step corresponding to step S107, the macro base station in step S107 sends the user identification and the information of the micro base station to be accessed to the user terminal, and correspondingly, the user terminal receives the user identification and the information of the micro base station to be accessed sent by the macro base station.

S109. The user terminal accesses the micro base station to be accessed according to the user identifier.

S110. The micro base station to be accessed allows the user terminal to access, and provides service for the user terminal.

Specifically, the micro base station to be accessed provides business services for the user terminal according to the cooperation mechanism determined by the macro base station, such as which base stations carry the voice service of the user terminal, which base stations carry the multimedia service of the user terminal, etc.

It should be noted that in different application scenarios, the user terminal may be mobile, and during the moving process of the user terminal, the user terminal may move from the coverage area of one macro base station to the coverage area of another macro base station, so , for different application scenarios, the access methods in the ultra-dense networking provided by the embodiments of the present invention will be different. The specific application scenarios are as follows:

Application Scenario 1, taking the user terminal within the coverage of macro base station A, never accessing the micro base station, and the user terminal is stationary at site A as an example, the access method under the ultra-dense networking provided by the embodiment of the present invention is carried out Note, the location of the user terminal and the structural diagram of the LTE system architecture are shown in Figure 3, and the flow chart of the access method under the ultra-dense networking is shown in Figure 4, the method includes:

S201. The user terminal detects signal strengths of all micro base stations within a preset range centered on place A, and generates signal measurement information.

Assuming that the user terminal is within the coverage area of the macro base station A and has never accessed the micro base station, and the user terminal is stationary at site A, the user terminal detects that there are 5 micro base stations within the preset range centered on site A. The user terminal detects the signal strengths of the five micro base stations within a preset range centered on place A, and generates signal measurement information, where the signal measurement information includes the signal strengths of the five micro base stations.

S202. The user terminal sends inquiry information and signal measurement information to the macro base station.

If the user terminal needs to be connected to the micro base station to provide services for the user terminal, the user terminal sends inquiry information and signal measurement information to the macro base station, and the inquiry information is used to instruct the macro base station to allocate the micro base station to be accessed for the user terminal. The number of micro base stations is greater than or equal to two.

S203. The macro base station acquires inquiry information and signal measurement information sent by the user terminal.

S204. The macro base station acquires a candidate micro base station.

After the macro base station obtains the query information and signal measurement information sent by the user terminal, the macro base station selects a candidate micro base station from the signal strengths of the above five micro base stations included in the signal measurement information according to the query information. For example, the macro base station selects four candidate micro base stations a, b, c and d from the signal strengths of the above five micro base stations.

Wherein, the candidate micro base stations are all micro base stations whose signal strength is greater than the first preset threshold among the above five micro base stations.

S205. The macro base station acquires the micro base station to be accessed according to the attribute information of the candidate micro base station.

Wherein, the attribute information of the candidate micro base station includes at least load information of the candidate micro base station.

It should be noted that although the signal strengths of the candidate micro base stations a, b, c, and d are greater than the first preset threshold, whether the candidate micro base stations a, b, c, and d are suitable for user terminal access still needs to be based on the alternative The attribute information of the micro base station a, b, c and d is judged. For example, the current load of the candidate micro base station a is relatively large, and the macro base station thinks that the candidate micro base station a is not suitable for user terminal access. Therefore, the macro base station selects b , c and d serve as micro base stations to be accessed.

S206. The macro base station sends an access indication to the micro base station to be accessed, where the access indication is used to instruct the micro base station to be accessed to provide service for the user terminal.

The macro base station first confirms the cooperation mechanism of the micro base stations b, c, and d to be accessed. For example, the micro base station b to be accessed provides voice services for user terminals, the micro base station c to be accessed provides multimedia services for user terminals, and the micro base station c to be accessed provides multimedia services for user terminals. d providing video browsing services for user terminals. The macro base station sends an access indication to the micro base station to be accessed, and the access indication is used to instruct the micro base stations b, c and d to be accessed to jointly provide business services for the user terminal according to the cooperation mechanism.

S207. The micro base station to be accessed receives the access indication sent by the macro base station.

After the micro base station to be accessed receives the access indication sent by the macro base station, it reserves radio resources for the user terminal to accept the user terminal.

S208. The macro base station sends the user identifier and information about the micro base station to be accessed to the user terminal.

The macro base station sends the user identification and information about the micro base stations b, c and d to be accessed to the user terminal.

It should be noted that step S208 and step S206 are not performed sequentially. The macro base station may first send an access indication to the micro base station to be accessed, and then send the user identification and the information of the micro base station to be accessed to the user terminal; or First send the user identification and the information of the micro base station to be accessed to the user terminal, and then send the access indication to the micro base station to be accessed; it can also send the access indication to the micro base station to be accessed at the same time, and send the user identification and the micro base station to be accessed. The information of the base station is sent to the user terminal, which is not limited in the present invention.

S209. The user terminal receives the user identifier and information about the micro base station to be accessed sent by the macro base station.

S210. The user terminal accesses the micro base station to be accessed according to the user identifier.

S211. The micro base station to be accessed allows the user terminal to access, and provides service for the user terminal.

The user terminal accesses micro base stations b, c, and d to be accessed. The micro base stations b, c, and d to be accessed follow the cooperation mechanism. For example, the micro base station b to be accessed provides voice services for user terminals, and the micro base station c to be accessed is The user terminal provides multimedia services, and the micro base station d to be connected provides video browsing services for the user terminals and business services for the user terminals.

Application Scenario 2, taking the user terminal within the coverage of macro base station A, accessing micro base stations a and b, and the user terminal is moving from A to B as an example, the ultra-dense group provided by the embodiment of the present invention The access method under the network is described. The location of the user terminal and the structure diagram of the LTE system architecture are shown in Figure 5, and the flow chart of the access method under the ultra-dense network is shown in Figure 6. The method includes:

S301. The user terminal detects the signal strength of the connected micro base station.

Assuming that the user terminal is within the coverage area of the macro base station A, has access to the micro base station a and b, and the user terminal is moving from A to B, the user terminal detects the preset range centered on the current location of the user terminal There are 5 micro base stations in total. Since the user terminal is in a moving state, the signal strengths of the connected micro base stations a and b that provide business services for the user terminal will also change. The user terminal detects the signal strength of the connected micro base stations a and b.

S302. If the signal strength of the connected micro base station is less than the second preset threshold, and the signal strength of any one of all micro base stations within the preset range centered on the user terminal is greater than the third preset threshold, the user The terminal generates a query message.

If the signal strength of the accessed micro base station a is less than the second preset threshold, and the signal strength of any one of the five micro base stations within the preset range centered on the current location of the user terminal is greater than the third preset threshold , it means that the access to the micro base station a is no longer suitable for providing business services to the user terminal, and the user terminal generates an inquiry message.

Further, the second preset threshold is smaller than the third user threshold, and the second preset threshold and the third preset threshold may be agreed between the user terminal and the macro base station according to actual needs.

S303. The user terminal detects signal strengths of all micro base stations within a preset range centered on the current location of the user terminal, and generates signal measurement information.

The user terminal detects signal strengths of five micro base stations within a preset range centered on the current location of the user terminal, and generates signal measurement information, where the signal measurement information includes the signal strengths of the five micro base stations. The five micro base stations are respectively micro base stations c, d, e, f and g.

S304. The user terminal sends inquiry information and signal measurement information to the macro base station.

S305. The macro base station acquires inquiry information and signal measurement information sent by the user terminal.

S306. The macro base station acquires a candidate micro base station.

After the macro base station obtains the query information and signal measurement information sent by the user terminal, the macro base station selects a candidate micro base station from the signal strengths of the above five micro base stations included in the signal measurement information according to the query information. For example, the macro base station selects three candidate micro base stations e, f and g from the signal strengths of the above five micro base stations.

The candidate micro base stations are all micro base stations whose signal strength is greater than a first preset threshold within a preset range centered on the current location of the user terminal.

S307. The macro base station acquires the micro base station to be accessed according to the attribute information of the candidate micro base station.

Wherein, the attribute information of the candidate micro base station includes at least load information of the candidate micro base station.

It should be noted that although the signal strengths of the candidate micro base stations e, f, and g are greater than the first preset threshold, whether the candidate micro base stations e, f, and g are suitable for user terminal access still needs to be based on the candidate micro base stations e, f, and g. The attribute information of f and g is judged. For example, if the current loads of the candidate micro base stations f and g are relatively large, the macro base station considers that the candidate micro base stations f and g are not suitable for user terminal access. Therefore, the macro base station selects e as the candidate Access to the micro base station.

S308. The macro base station sends an access indication to the micro base station to be accessed, where the access indication is used to instruct the micro base station to be accessed to provide service for the user terminal.

Since the connected micro base station a is no longer suitable for providing business services for user terminals, the macro base station first confirms the cooperation mechanism between the micro base station e to be connected and the connected micro base station b, for example, the connected micro base station a provides user terminals with For voice service, the connected micro base station b provides multimedia services for the user terminal, and the micro base station e to be connected will replace the connected micro base station a to continue to provide voice services for the user terminal. The macro base station sends an access indication to the micro base station to be accessed, and the access indication is used to instruct the micro base station e to be accessed to provide business services for the user terminal jointly with the accessed micro base station b according to the cooperation mechanism.

S309. The micro base station to be accessed receives the access indication sent by the macro base station.

After the micro base station to be accessed receives the access indication sent by the macro base station, it reserves radio resources for the user terminal to accept the user terminal.

S310. The macro base station sends the user identifier and information about the micro base station to be accessed to the user terminal.

The macro base station sends the user identification and information about the micro base station e to be accessed to the user terminal.

It should be noted that step S308 and step S310 have no sequence relationship, the macro base station may first send an access instruction to the micro base station to be accessed, and then send the user identification and the information of the micro base station to be accessed to the user terminal; or First send the user identification and the information of the micro base station to be accessed to the user terminal, and then send the access indication to the micro base station to be accessed; it can also send the access indication to the micro base station to be accessed at the same time, and send the user identification and the micro base station to be accessed. The information of the base station is sent to the user terminal, which is not limited in the present invention.

S311. The user terminal receives the user identifier and information about the micro base station to be accessed sent by the macro base station.

S312. The user terminal accesses the micro base station to be accessed according to the user identifier.

S313. The user terminal disconnects from the connected micro base station.

After the user terminal accesses the micro base station e to be accessed, the connection with the accessed micro base station a is correspondingly disconnected.

S314. The micro base station to be accessed allows the user terminal to access, and provides service for the user terminal.

The user terminal accesses the micro base station e to be accessed, and the micro base station e to be accessed provides business services for the user terminal together with the micro base station b that has been accessed according to the cooperation mechanism. Since the macro base station can select a suitable micro base station to be accessed for the user terminal according to the signal measurement information, even if there is a handover of the micro base station, the mobile or stationary user terminal can always access the micro base station, thereby ensuring that the micro base station The shunt ability avoids edge effects.

What needs to be added is that if the user terminal is moving from place A to place B, and place A is within the coverage of macro base station A, and place B is within the coverage of macro base station B, the user terminal also needs to detect the location of macro base station A. control signal. If the control signal of macro base station A becomes weaker and the user terminal detects the signal of macro base station B which is closer, the user terminal sends a handover request to replace the control node to macro base station A, so that the user terminal can switch from the control node of macro base station A. Switch to control of macro base station B.

What needs to be added is that in the prior art, each micro base station is an independent cell, that is, each micro base station broadcasts its own cell ID. However, in the access method under the ultra-dense networking provided by the embodiment of the present invention, the micro base station does not need to broadcast its own cell ID, and only the macro base station is responsible for broadcasting the cell ID of the macro base station, and each micro base station only broadcasts for An access identifier indicating one's own identity, wherein the access identifier is different from the cell ID. Because, in the cellular network, there are certain rules for the resource configuration inside the cell and the configuration of adjacent cells; and the access method under the ultra-dense networking provided by the embodiment of the present invention, the resource configuration of the micro base station is completely scheduled by the macro base station , the scheduling rules can be flexibly adjusted according to the needs of user terminals, and are not restricted by traditional cell configuration rules.

An embodiment of the present invention provides an access method in an ultra-dense network. The access method in an ultra-dense network obtains inquiry information and signal measurement information sent by a user terminal through a macro base station, wherein the inquiry information is used to instruct the macro base station to The base station assigns the micro base station to be accessed for the user terminal; the macro base station obtains the micro base station to be accessed from all the micro base stations within the preset range centered on the user terminal according to the signal measurement information; the macro base station sends an access instruction to the standby base station Into the micro base station, the access indication is used to instruct the micro base station to be accessed to provide business services for the user terminal; the macro base station sends the user identification and the information of the micro base station to be accessed to the user terminal, so that the user terminal can access the mobile terminal to be accessed according to the user identification Access to the micro base station. Based on the description of the above embodiments, since the macro base station can select suitable micro base stations for user terminals to access according to the signal measurement information, the user terminals in the moving state or stationary state can always access the micro base stations, thereby ensuring the offloading of the micro base stations ability to avoid edge effects.

Example 2

An embodiment of the present invention provides a macro base station. As shown in FIG. 7 , the macro base station is configured to perform the steps performed by the macro base station in the above method. The macro base station may include modules corresponding to corresponding steps. Exemplarily, it may include an acquisition module 10 , a screening module 11 and a sending module 12 .

The acquisition module 10 is configured to acquire inquiry information and signal measurement information sent by the user terminal, wherein the inquiry information is used to instruct the macro base station to allocate the micro base station to be accessed for the user terminal.

The screening module 11 is configured to acquire micro base stations to be accessed from all micro base stations within a preset range centered on the user terminal according to the signal measurement information after the acquisition module acquires the inquiry information and signal measurement information sent by the user terminal.

The sending module 12 is configured to send an access indication to the micro base station to be accessed, and the access indication is used to instruct the micro base station to be accessed to provide business services for the user terminal; and send user identification and information of the micro base station to be accessed to the user terminal , so that the user terminal accesses the micro base station to be accessed according to the user identifier.

Optionally, the signal measurement information includes signal strengths of all micro base stations within a preset range centered on the user terminal detected by the user terminal.

The screening module 11 is specifically used to obtain candidate micro base stations, where the candidate micro base stations are all micro base stations whose signal strength is greater than the first preset threshold within a preset range centered on the user terminal; according to the attribute information of the candidate micro base stations , to acquire the micro base station to be accessed, where the attribute information of the candidate micro base station includes at least load information of the candidate micro base station.

It can be understood that the macro base station in this embodiment may correspond to the macro base station in the access method under the ultra-dense networking in any one of the embodiments shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 , and the division and/or function of each module in the macro base station in this embodiment is to realize the method flow shown in any one of FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 , for simplicity, I won't repeat them here.

Optionally, as another embodiment of the present invention, the function of the acquiring module 10 may be realized by a receiver, the function of the filtering module 11 may be realized by a processor, and the function of the sending module 12 may be realized by a transmitter. Among them, the receiver and transmitter can be integrated in a transceiver.

An embodiment of the present invention provides a macro base station, including: an acquisition module, configured to acquire inquiry information and signal measurement information sent by a user terminal, wherein the inquiry information is used to instruct the macro base station to assign a micro base station to be accessed by the user terminal; a screening module After the acquisition module acquires the query information and signal measurement information sent by the user terminal, according to the signal measurement information, obtain the micro base stations to be accessed from all the micro base stations within the preset range centered on the user terminal; the sending module, It is used to send an access indication to the micro base station to be accessed, and the access indication is used to instruct the micro base station to be accessed to provide business services for the user terminal; and to send the user identification and the information of the micro base station to be accessed to the user terminal, so that the user The terminal accesses the micro base station to be accessed according to the user identifier. Based on the description of the above embodiments, since the macro base station can select suitable micro base stations for user terminals to access according to the signal measurement information, the user terminals in the moving state or stationary state can always access the micro base stations, thereby ensuring the offloading of the micro base stations ability to avoid edge effects.

Example 3

An embodiment of the present invention provides a user terminal. As shown in FIG. 8 , the user terminal is configured to perform the steps performed by the user terminal in the above method. The user terminal may include modules corresponding to corresponding steps. Exemplarily, it may include a sending module 20 , a receiving module 21 and a processing module 22 .

The sending module 20 is configured to send inquiry information and signal measurement information to the macro base station, so that the macro base station acquires micro base stations to be accessed from all micro base stations within a preset range centered on the user terminal according to the signal measurement information, wherein , the inquiry information is used to instruct the macro base station to allocate the micro base station to be accessed for the user terminal.

The receiving module 21 is configured to receive the user identification and the information of the micro base station to be accessed sent by the macro base station.

The processing module 22 is configured to access the micro base station to be accessed according to the user identifier.

Optionally, as shown in Figure 9, the user terminal further includes:

The detection module 23 is configured to detect the signal strength of all micro base stations within a preset range centered on the user terminal before the sending module sends inquiry information and signal measurement information to the macro base station.

The generating module 24 is configured to generate signal measurement information.

Optionally, if the user terminal has already connected to the connected micro base station;

The detection module 23 is also used to detect the signal strength of the connected micro base station before the inquiry information and signal measurement information sent by the sending module to the macro base station.

The generation module 24 is further configured to if the signal strength of the accessed micro base station is less than the second preset threshold, and the signal strength of any one of the micro base stations within the preset range centered on the user terminal is greater than the third preset threshold. If the threshold is set, an inquiry message is generated.

The processing module 22 is further configured to disconnect the connected micro base station after the processing module 22 accesses the micro base station to be accessed according to the user identifier.

It can be understood that the user terminal in this embodiment may be the user terminal served by the macro base station or the micro base station in the above embodiment, and the user terminal may correspond to the above-mentioned FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 The user terminal in the access method under ultra-dense networking in any one of the embodiments, and the division and/or functions of each module in the user terminal in this embodiment are all for realizing the For the sake of brevity, the method flow shown in any one of FIG. 4 , FIG. 5 and FIG. 6 will not be repeated here.

Optionally, as another embodiment of the present invention, the function of the sending module 20 can be realized by the transmitter, the function of the receiving module 21 can be realized by the receiver, and the functions of the processing module 22, the detection module 23 and the generating module 24 can be realized by Processor implementation. Among them, the receiver and transmitter can be integrated in a transceiver.

An embodiment of the present invention provides a user terminal, including a sending module, configured to send inquiry information and signal measurement information to a macro base station, so that the macro base station can send information from all micro stations within a preset range centered on the user terminal according to the signal measurement information. The base station obtains the micro base station to be accessed, wherein the query information is used to instruct the macro base station to allocate the micro base station to be accessed for the user terminal; the receiving module is used to receive the user identification sent by the macro base station and the information of the micro base station to be accessed; processing A module, configured to access the micro base station to be accessed according to the user identification. Based on the description of the above embodiments, since the macro base station can select suitable micro base stations for user terminals to access according to the signal measurement information, the user terminals in the moving state or stationary state can always access the micro base stations, thereby ensuring the offloading of the micro base stations ability to avoid edge effects.

Example 4

An embodiment of the present invention provides a micro base station to be accessed. As shown in FIG. 10 , the micro base station to be accessed is used to perform the steps performed by the micro base station to be accessed in the above method. The micro base station to be accessed may include modules corresponding to corresponding steps. Exemplarily, a receiving module 30 and a processing module 31 may be included.

The receiving module 30 is configured to receive an access indication sent by the macro base station, where the access indication is used to instruct the micro base station to be accessed to provide service for the user terminal.

The processing module 31 is configured to allow the user terminal to access and provide business services for the user terminal.

It can be understood that the micro base station to be accessed in this embodiment is one of the various micro base stations involved in the embodiment of the present invention. In actual production applications, the micro base station involved in the embodiment of the present invention The structures of various micro base stations (such as the micro base station to be accessed, the candidate micro base station and the accessed micro base station) may be the same. The micro base station to be accessed in this embodiment corresponds to the micro base station to be accessed in the access method under the ultra-dense networking in any one of the embodiments shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 , and the division and/or function of each module in the micro base station to be accessed in this embodiment is to realize the method flow shown in any one of FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 , For the sake of brevity, details are not repeated here.

Optionally, as another embodiment of the present invention, the function of the receiving module 30 may be realized by a receiver, and the function of the processing module 31 may be realized by a processor.

An embodiment of the present invention provides a micro base station to be accessed, including: a receiving module, configured to receive an access indication sent by a macro base station, where the access indication is used to instruct the micro base station to be accessed to provide business services for user terminals; a processing module, It is used to allow the access of the user terminal and provide business services for the user terminal. Based on the description of the above embodiments, since the macro base station can select suitable micro base stations for user terminals to access according to the signal measurement information, the user terminals in the moving state or stationary state can always access the micro base stations, thereby ensuring the offloading of the micro base stations ability to avoid edge effects.

Example 5

An embodiment of the present invention provides an access system under an ultra-dense networking, and the system includes a macro base station, a user terminal, and at least one micro base station. For the description of the macro base station, please refer to the relevant description of the macro base station in the above-mentioned embodiment shown in FIG. For related descriptions, for the description of the micro base station, please refer to the relevant description of the micro base station in the above embodiment as shown in FIG. 10 , and details are not repeated here.

Based on the description of the above embodiments, since the macro base station can select suitable micro base stations for user terminals to access according to the signal measurement information, the user terminals in the moving state or stationary state can always access the micro base stations, thereby ensuring the offloading of the micro base stations ability to avoid edge effects.

Those skilled in the art can clearly understand that for the convenience and brevity of description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to needs. The internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the above-described system, device, and unit, reference may be made to the corresponding process in the foregoing method embodiments, and details are not repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be Incorporation may either be integrated into another system, or some features may be omitted, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disk or optical disk and other media that can store program codes.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (13)

1. the cut-in method under super-intensive networking, is characterized in that, comprising:

Macro base station obtains inquiry message and the signal measurement information of user terminal transmission, and wherein, it is that described user terminal distributes base station in a subtle way waiting that described inquiry message is used to indicate described macro base station;

Described macro base station, according to described signal measurement information, obtains described base station in a subtle way waiting all micro-base station in the preset range comprising described user terminal location;

Described macro base station sends access instruction to described base station in a subtle way waiting, and described access instruction is used to indicate described base station in a subtle way waiting for described user terminal provides business service;

Described macro base station sends the information of user ID and described base station in a subtle way waiting to described user terminal, to make described user terminal according to described user ID, accesses described base station in a subtle way waiting.

2. the cut-in method under super-intensive networking according to claim 1, is characterized in that, described signal measurement information comprises the signal strength signal intensity of all micro-base station in the preset range comprising described user terminal location that described user terminal detects;

Described macro base station, according to described signal measurement information, obtains described base station in a subtle way waiting all micro-base station in the preset range comprising described user terminal location, specifically comprises:

Described macro base station obtains alternative micro-base station, and described alternative micro-base station is all micro-base station that the signal strength signal intensity comprised in the preset range of described user terminal location is greater than the first pre-determined threshold;

Described macro base station, according to the attribute information of described alternative micro-base station, obtains described base station in a subtle way waiting, and wherein, the attribute information of described alternative micro-base station at least comprises the load information of described alternative micro-base station.

3. the cut-in method under super-intensive networking, is characterized in that, comprising:

User terminal transmission inquiry message and signal measurement information are to macro base station, to make described macro base station according to described signal measurement information, described base station in a subtle way waiting is obtained all micro-base station in the preset range comprising described user terminal location, wherein, described inquiry message is used to indicate described macro base station is that described user terminal distributes base station in a subtle way waiting;

Described user terminal receives the user ID of described macro base station transmission and the information of described base station in a subtle way waiting;

Described user terminal, according to described user ID, accesses described base station in a subtle way waiting.

4. the cut-in method under super-intensive networking according to claim 3, is characterized in that, before described user terminal sends inquiry message and signal measurement information to macro base station, described method also comprises:

Described user terminal detects the signal strength signal intensity of all micro-base station comprised in the preset range of described user terminal location, and generates described signal measurement information.

5. the cut-in method under super-intensive networking according to claim 4, is characterized in that, before the inquiry message sent at described user terminal and signal measurement information to macro base station, if described user terminal has accessed access micro-base station;

Before the inquiry message sent at described user terminal and signal measurement information to macro base station, described method also comprises:

The signal strength signal intensity of micro-base station has been accessed described in described user terminal detects;

If the described signal strength signal intensity having accessed micro-base station is less than the second pre-determined threshold, and the signal strength signal intensity comprising any one micro-base station in all micro-base station in the preset range of described user terminal location is greater than the 3rd pre-determined threshold, then described user terminal generates inquiry message;

At described user terminal according to described user ID, after accessing described base station in a subtle way waiting, described method also comprises:

Described user terminal disconnects and the described connection having accessed micro-base station.

6. the cut-in method under super-intensive networking, is characterized in that, comprising:

Base station in a subtle way waiting receives the access instruction that macro base station sends, and described access instruction is used to indicate described base station in a subtle way waiting for user terminal provides business service;

Described base station in a subtle way waiting allows the access of described user terminal, and provides business service for described user terminal.

7. a macro base station, is characterized in that, comprising:

Acquisition module, for obtaining inquiry message and the signal measurement information of user terminal transmission, wherein, it is that described user terminal distributes base station in a subtle way waiting that described inquiry message is used to indicate described macro base station;

Screening module, for after the inquiry message and signal measurement information of the transmission of described acquisition module acquisition user terminal, according to described signal measurement information, all micro-base station in the preset range comprising described user terminal location, obtain described base station in a subtle way waiting;

Sending module, for sending access instruction to described base station in a subtle way waiting, described access instruction is used to indicate described base station in a subtle way waiting for described user terminal provides business service; And the information of user ID and described base station in a subtle way waiting that sends is to described user terminal, to make described user terminal according to described user ID, accesses described base station in a subtle way waiting.

8. macro base station according to claim 7, is characterized in that, described signal measurement information comprises the signal strength signal intensity of all micro-base station in the preset range comprising described user terminal location that described user terminal detects;

Described screening module, specifically for obtaining alternative micro-base station, described alternative micro-base station is all micro-base station that the signal strength signal intensity comprised in the preset range of described user terminal location is greater than the first pre-determined threshold; According to the attribute information of described alternative micro-base station, obtain described base station in a subtle way waiting, wherein, the attribute information of described alternative micro-base station at least comprises the load information of described alternative micro-base station.

9. a user terminal, is characterized in that, comprising:

Sending module, for sending inquiry message and signal measurement information to macro base station, to make described macro base station according to described signal measurement information, described base station in a subtle way waiting is obtained all micro-base station in the preset range comprising described user terminal location, wherein, described inquiry message is used to indicate described macro base station is that described user terminal distributes base station in a subtle way waiting;

Receiver module, for receiving the user ID and the information of described base station in a subtle way waiting that described macro base station sends;

Processing module, for according to described user ID, accesses described base station in a subtle way waiting.

10. user terminal according to claim 9, is characterized in that, described user terminal also comprises:

Detection module, for before described sending module sends inquiry message and signal measurement information to macro base station, detects the signal strength signal intensity of all micro-base station comprised in the preset range of described user terminal location;

Generation module, for generating described signal measurement information.

11. user terminals according to claim 10, is characterized in that, if described user terminal has accessed access micro-base station;

Described detection module, also for before the inquiry message that sends at described sending module and signal measurement information to macro base station, has accessed the signal strength signal intensity of micro-base station described in detection;

Described generation module, if be also less than the second pre-determined threshold for the described signal strength signal intensity having accessed micro-base station, and the signal strength signal intensity comprising any one micro-base station in all micro-base station in the preset range of described user terminal location is greater than the 3rd pre-determined threshold, then generate inquiry message;

Described processing module, also in described processing module according to described user ID, after accessing described base station in a subtle way waiting, disconnect with the described connection having accessed micro-base station.

12. 1 kinds of base stations in a subtle way waiting, is characterized in that, comprising:

Receiver module, for receiving the access instruction that macro base station sends, described access instruction is used to indicate described base station in a subtle way waiting for user terminal provides business service;

Processing module, for allowing the access of described user terminal, and provides business service for described user terminal.

Connecting system under 13. 1 kinds of super-intensive networkings, it is characterized in that, comprise and there is macro base station as claimed in claim 7 or 8, have as the user terminal in claim 9-11 as described in any one, and there is base station in a subtle way waiting as claimed in claim 12.