CN104684019A - A measurement information acquisition and transmission method, device and base station equipment - Google Patents

Abstract

The invention discloses a measurement information acquisition and transmission method, device and base station equipment, which are used to reduce signaling overhead and time delay on the air interface of the base station. Wherein, the measurement information acquisition method includes: the target base station obtains the measurement information measured by the terminal during the cell handover process of the terminal or after the cell handover is completed; the measurement information sending method includes: performing cell handover in the terminal During the process or after the cell handover is completed, receive the indication information for obtaining measurement information sent by the target base station, the measurement information is measured and reported by the terminal; and send the measurement information to the target base station.

Description

A measurement information acquisition and transmission method, device and base station equipment

technical field

The present invention relates to the technical field of wireless communication, in particular to a measurement information acquisition and transmission method, device and base station equipment.

Background technique

Statistical results show that 60% of mobile voice services and 70% of data services of mobile operators currently take place indoors; future data services are expected to increase 1,000 times in 10 years, and indoor data services will account for 90% of the total business volume. Therefore, the bottleneck of traditional cellular network coverage in supporting the development of indoor and hotspot wireless data services has become increasingly prominent, and the network development of mobile operators is facing the following challenges: (1) The wireless access capacity limit of traditional 2G and 3G networks is gradually emerging; (2 ) It is increasingly difficult to obtain site and antenna resources, and the distance between stations in dense urban areas is close to the theoretical limit, making it difficult to support the dense deployment of traditional cellular macro base stations; (3) The deployment and operation costs of macro base stations are high, and the expansion of new macro base stations The network construction method is unsustainable.

At present, there are two types of solutions for the development of hotspots and indoor data services: WiFi and LTE SmallCell. Currently, the industry collectively refers to the pico (Pico) base station and the home base station defined in the standard as a small cell (SmallCell). Since the deployment of small cells supports interference management, self-starting nodes, and shares the core network and network management system with the cellular network, its deployment and management are relatively simple, and it has become the mainstream direction to solve future indoor and hotspot data service coverage and capacity.

In order to reduce the signaling overhead of mobility management, the macro base station is used as the anchor point of mobility management of the terminal as much as possible. As shown in Figure 1 below, it is a schematic diagram of a scenario where a terminal moves between a small cell and a macro cell. When the terminal moves out of the initially connected small cell A and enters the coverage of the macro base station, the anchor point needs to be migrated from the small cell A to the macro cell, and the coverage of the macro cell may also include small cell B. In the prior art, after the anchor point is migrated from the small cell to the macro cell, the macro base station needs to configure measurement for the terminal, and the terminal performs related measurements according to the configuration of the macro base station and reports the measurement results to the macro base station. This process increases the number of base stations. Air interface signaling overhead and delay.

Contents of the invention

Embodiments of the present invention provide a measurement information acquisition and transmission method, device, and base station equipment, so as to reduce air interface signaling overhead and time delay of the base station.

An embodiment of the present invention provides a method for acquiring measurement information, including:

The target base station obtains the measurement information measured by the terminal during the cell handover process of the terminal or after the cell handover is completed.

An embodiment of the present invention provides a measurement information acquisition device, including:

The obtaining unit is configured to obtain the measurement information measured by the terminal during the cell switching process of the terminal or after the cell switching is completed.

An embodiment of the present invention provides a base station device, including the above-mentioned apparatus for acquiring measurement information.

An embodiment of the present invention provides a method for sending measurement information, including:

During the cell handover process of the terminal or after the cell handover is completed, receive the instruction information for obtaining measurement information sent by the target base station, the measurement information is measured and reported by the terminal;

Send the measurement information to the target base station.

An embodiment of the present invention provides a device for sending measurement information, including:

The receiving unit is configured to receive the instruction information for obtaining measurement information sent by the target base station during the cell switching process of the terminal or after the cell switching is completed, the measurement information is measured and reported by the terminal;

A sending unit, configured to send the measurement information to the target base station.

An embodiment of the present invention provides a base station device, including the above-mentioned apparatus for sending measurement information.

In the measurement information acquisition and transmission method, device, and base station equipment provided by the embodiments of the present invention, the target base station obtains the measurement information measured by the terminal during the cell handover process of the terminal or after the cell handover is completed. Since the terminal needs to perform related measurements during the cell handover process to obtain the corresponding measurement information, in this way, during the cell handover process or after the cell handover is completed, the target base station can directly obtain the relevant measurement information measured by the terminal from the terminal , avoiding that after the terminal completes the cell handover, the target base station reconfigures the terminal, and the terminal performs measurement and reports again, thereby reducing the air interface signaling overhead and delay of the base station.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute improper limitations to the present invention. In the attached picture:

FIG. 1 is a schematic diagram of a scenario where a terminal moves between a small cell and a macro cell in the prior art;

FIG. 2 is a schematic diagram of an implementation flow for actively obtaining measurement information measured by a terminal for a target base station in an embodiment of the present invention;

FIG. 3 is a schematic diagram of an implementation process in which the terminal notifies the target base station that it has cached measurement information, and the target base station obtains the cached measurement information from the terminal in an embodiment of the present invention;

Fig. 4 is a schematic diagram of the first possible structure of the obtaining unit in the embodiment of the present invention;

Fig. 5 is a schematic diagram of the second possible structure of the obtaining unit in the embodiment of the present invention;

FIG. 6 is a schematic diagram of an implementation flow of a method for sending measurement information in an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of an apparatus for sending measurement information in an embodiment of the present invention.

Detailed ways

In order to reduce the signaling overhead and time delay on the air interface of the base station when the terminal performs cell handover, the embodiments of the present invention provide a measurement information acquisition and transmission method, device and base station equipment.

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention, and in the absence of conflict, the present invention The embodiments and the features in the embodiments can be combined with each other.

During specific implementation, the target base station obtains the measurement information measured by the terminal during the cell handover process or after the cell handover is completed. Specifically, in the embodiment of the present invention, the following two implementation modes are provided:

Method 1: The base station actively obtains the measurement information measured by the terminal

As shown in Figure 2, it is a schematic diagram of the implementation process for the base station to actively obtain the measurement information measured by the terminal, which may include the following steps:

S201. The target base station sends first indication information for obtaining measurement information to the source base station connected to the terminal;

In the scenario shown in Figure 1, when the terminal moves from the small cell A to the coverage of the macro cell, a cell handover will be triggered. At this time, the target base station is a macro cell base station, and the source base station is a small cell base station, and the cell handover is being performed During the process, the terminal needs to measure its own serving cell and neighboring cells (including macro cells and other small cells within the coverage of macro cells), and the measurement information includes the reference signal receiving power (RSRP, Reference Signal Receiving Power) and Reference Signal Receiving Quality (RSRQ, Reference Signal Receiving Quality) and load information of each cell, etc. After measuring the above measurement information, the terminal will report to the source base station, and at the same time, the terminal caches the measurement information. In this way, the target base station may send the first indication information requesting the measurement information measured by the terminal to the source base station.

Specifically, the first indication information can be carried in any message before the UE CONTEXT RELEASE (terminal context information release) message, but cannot be sent in the message after the UE CONTEXT RELEASE message, because the source base station receives the UE CONTEXT RELEASE Information about the terminal will be released after the message. Preferably, the first indication information may be, but not limited to, carried in HANDOVER REQUEST ACKNOWLEDGE (handover request acknowledgment).

S202. Receive measurement information sent by the source base station.

Specifically, after receiving the first indication information, the source base station sends the measurement information reported by the terminal to the target base station. Specifically, the source base station may forward the measurement information reported by the terminal to the target base station through an X2 interface or an S1 interface (when the terminal is handed over across MMEs (mobility management entities)).

Preferably, when the source base station sends measurement information to the target base station, these measurement information can be carried in the handover request (Handover Request) and sent together with the handover request, or can be carried in SNstatus Transfer (sequence status transfer) and sent, of course It is also possible to use the new X2/S1 messaging.

In particular, during specific implementation, the target base station may also determine whether to activate other small cells for the terminal according to the received measurement information.

Method 2: The terminal notifies the target base station that it has measurement information cached

As shown in Figure 3, it is a schematic diagram of an implementation process in which the terminal notifies the target base station that it has cached measurement information, and the target base station obtains the cached measurement information from the terminal, which may include the following steps:

S301. The target base station receives the second indication information sent by the terminal when it has measured measurement information in its cache;

Wherein, the second indication information is used to indicate that the target base station terminal caches the measured measurement information. During specific implementation, the terminal may use 1-bit information for indication. Preferably, the second indication information may be carried in the radio resource control (RRC, Radio Resource Control) connection reconfiguration completion message sent by the terminal to the target base station, or may be carried in other messages sent by the subsequent terminal to the target base station, such as The measurementReport (measurement report) message, or ulInformationTransfer (uplink information transfer) message or ueInformationResponse (terminal information feedback) message, etc., of course, can also be carried in the new uplink message.

S302. The target base station sends to the terminal third indication information for obtaining the measured measurement information;

Preferably, the third indication information can be carried in the RRC connection reconfiguration message transparently transmitted by the target base station to the terminal through the source base station, or in a message after the RRC connection reconfiguration message, such as ueInformationRequest (terminal information request) The message or the dlInformationTransfer (downlink message transfer) message, etc., of course, can also be carried in a new downlink message, and a meas-ReportReq field can be added in it to request the measurement information measured by the terminal.

S303. The target base station receives the measurement information sent by the terminal.

During specific implementation, after receiving the third indication information for acquiring measurement information sent by the target base station, the terminal will report the measured measurement information to the target base station. Preferably, it can be sent in the RRC connection reconfiguration complete message sent by the terminal to the target base station, and can be placed in other messages sent by the terminal to the base station, such as measurementReport message, ulInformationTransfer message or ueInformationResponse message, etc. Of course, it can also be carried in the new uplink message.

In particular, during specific implementation, the target base station may also determine whether to activate other small cells for the terminal according to the received measurement information.

In the measurement information acquisition and transmission method, device, and base station equipment provided by the embodiments of the present invention, the target base station obtains the measurement information measured by the terminal during the cell handover process of the terminal or after the cell handover is completed. Since the terminal needs to perform related measurements during the cell handover process to obtain the corresponding measurement information, in this way, during the cell handover process or after the cell handover is completed, the target base station can directly obtain the relevant measurement information measured by the terminal from the terminal , avoiding that after the terminal completes the cell handover, the target base station reconfigures the terminal, and the terminal performs measurement and reports again, thereby reducing the air interface signaling overhead and delay of the base station.

Based on the same inventive concept, an embodiment of the present invention also provides a method for transmitting measurement information, a device for obtaining and transmitting measurement information, and a base station device. Since the problem-solving principle of the above-mentioned device and device is similar to that of the method for obtaining measurement information, the above-mentioned device For the implementation of the device and the implementation, please refer to the implementation of the method, and the repetition will not be repeated.

During specific implementation, the measurement information acquisition device provided by the embodiment of the present invention includes an acquisition unit, configured to acquire measurement information measured by the terminal during the cell handover process of the terminal or after the cell handover is completed.

Preferably, the obtaining unit may include the following two structures, as shown in Fig. 4 and Fig. 5 respectively.

As shown in Figure 4, in order to obtain the first possible structural schematic diagram of the unit, it includes:

The first sending subunit 401 is configured to send, to the source base station connected to the terminal, first indication information for obtaining measurement information measured by the terminal;

The first receiving subunit 402 is configured to receive measurement information sent by the source base station.

Wherein, the measurement information is measured by the terminal and reported to the source base station. Preferably, the first receiving subunit 402 may be configured to receive measurement information sent by the source base station through the X2 interface or the S1 interface.

As shown in Figure 5, it is the second possible structure of the unit obtained in the embodiment of the present invention, including:

The second receiving subunit 501 is configured to receive the second indication information sent by the terminal when the measured measurement information is buffered by itself; and receive the measurement information sent by the terminal;

Wherein, the second indication information is used to indicate that the target base station terminal caches the measured measurement information.

The second sending subunit 502 is configured to send third instruction information for acquiring measurement information to the terminal.

For the convenience of description, each part of the above measurement information acquisition device is divided into modules (or units) according to their functions and described separately. Certainly, when implementing the present invention, the functions of each module (or unit) can be implemented in one or more pieces of software or hardware.

As shown in FIG. 6, it is a schematic flow diagram of the implementation flow of the measurement information sending method provided by the embodiment of the present invention, which may include the following steps:

S601. The source base station receives the instruction information for obtaining measurement information sent by the target base station during the cell handover process of the terminal or after the cell handover is completed;

Wherein, the measurement information is measured by the terminal and reported to the source base station.

S602. The source base station sends the measurement information reported by the terminal to the target base station.

During specific implementation, the source base station may send the measurement information reported by the terminal to the target base station through an X2 interface or an S1 interface. Preferably, the source base station can carry the measurement information in the Handover Request or SN status Transfer and send it to the target base station. It should be understood that carrying the measurement information in the Handover Request or sending it to the target base station in the SN status Transfer is only a preferred implementation of the embodiment of the present invention. During specific implementation, the measurement information can also be carried in the X2/S1 of the core sent in the message.

As shown in FIG. 7, it is a schematic structural diagram of a measurement information sending device provided by an embodiment of the present invention, including:

The receiving unit 701 is configured to receive the instruction information for obtaining measurement information sent by the target base station during the cell switching process of the terminal or after the cell switching is completed, the measurement information is measured and reported by the terminal;

A sending unit 702, configured to send the measurement information to the target base station.

During specific implementation, the sending unit 702 may be configured to send the measurement information to the target base station through an X2 interface or an S1 interface. Preferably, the sending unit 702 can carry the measurement information in the Handover Request and send it to the target base station through the X2 interface or the S1 interface; or carry the measurement information in the SN status Transfer and send it to the target through the X2 interface or the S1 interface base station.

It should be noted that the apparatus for acquiring and sending measurement information provided in the embodiment of the present invention may be set in a base station device.

Those skilled in the art know that the target base station and source base station described in the embodiments of the present invention are named relative to the handover of the terminal. For example, for two base stations BS1 and BS2, if the terminal is handed over from BS1 to BS2, then BS1 is the target base station, and BS2 is the source base station; on the contrary, if the terminal is handed over from BS2 to BS1, BS2 is the source base station, and BS1 is the target base station.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and combinations of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a Means for realizing the functions specified in one or more steps of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional changes and modifications can be made to these embodiments by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

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

Claims (23)

1. a metrical information acquisition methods, is characterized in that, comprising:

Target BS carries out, in cell switch process or after completing cell merge, obtaining the metrical information that described terminal measures in terminal.

2. the method for claim 1, is characterized in that, obtains the metrical information that described terminal measures, specifically comprises:

The source base station connected to described terminal sends the first indication information obtaining described metrical information;

Receive the metrical information that source base station sends, described metrical information is that described terminal is measured and reports source base station.

3. method as claimed in claim 2, is characterized in that, described first indication information is carried in the arbitrary message before terminal context information release UE CONTEXT RELEASE message.

4. method as claimed in claim 3, it is characterized in that, described first indication information is carried in Handover Request Acknowledge HANDOVER REQUEST ACKNOWLEDGE.

5. the method as described in claim 2,3 or 4, is characterized in that, receives the measurement message that source base station sends, specifically comprises:

Receive the metrical information that described source base station is sent by X2 interface or S1 interface.

6. method as claimed in claim 5, it is characterized in that, described metrical information is carried in handover request Handover Request; Or described metrical information is carried at sequence state and transmits in SN status Transfer.

7. the method for claim 1, is characterized in that, obtains the metrical information that described terminal measures, specifically comprises:

Receive the second indication information that described terminal sends when own cache has the metrical information measured, described second indication information is used to indicate terminal buffers described in described target BS described metrical information;

The 3rd indication information obtaining described metrical information is sent to described terminal;

Receive the described metrical information that described terminal sends.

8. method as claimed in claim 7, it is characterized in that, described second indication information or described metrical information are carried at radio resource control RRC connection reprovision and complete in message, or described second indication information is carried in measurement report measurementReport message, or described second indication information is carried at uplink information and transmits in ulInformationTransfer, or described second indication information is carried in end message feedback ueInformationResponse message.

9. method as claimed in claim 7 or 8, it is characterized in that, described 3rd indication information is carried at RRC and connects in reconfiguration message, or described 3rd indication information is carried in terminal information request ueInformationRequest message, or described 3rd indication information is carried at downstream message and transmits in dlInformationTransfer message, wherein, described RRC connects reconfiguration message or described ueInformationRequest message or described dlInformationTransfer message and passes through described terminal by described target BS by the source base station that described terminal connects.

10. the method for claim 1, it is characterized in that, described metrical information comprises Reference Signal Received Power RSRP, the Reference Signal Received Quality RSRQ of described Serving cell, terminal place and each neighbor cell and the load information of described Serving cell and each neighbor cell.

11. methods as claimed in claim 2, it is characterized in that, described target BS is macro base station, and described source base station is small-cell base station.

12. 1 kinds of metrical information acquisition device, is characterized in that, comprising:

Obtaining unit, in cell switch process or after completing cell merge, obtaining the metrical information that described terminal measures for carrying out in terminal.

13. devices as claimed in claim 12, it is characterized in that, described acquisition unit comprises:

First sends subelement, sends for the source base station connected to described terminal the first indication information obtaining described metrical information;

First receives subelement, and for receiving the metrical information that source base station sends, described metrical information is that described terminal is measured and reports source base station.

14. devices as claimed in claim 13, is characterized in that,

Described first receives subelement, specifically for receiving the metrical information that described source base station is sent by X2 interface or S1 interface.

15. devices as claimed in claim 12, it is characterized in that, described acquisition unit comprises:

Second receives subelement, and for receiving the second indication information that described terminal sends when own cache has the metrical information measured, described second indication information is used to indicate terminal buffers described in described target BS described metrical information; And receive the described metrical information of described terminal transmission;

Second sends subelement, for sending the 3rd indication information obtaining described metrical information to described terminal.

16. 1 kinds of base station equipments, is characterized in that, comprise the device described in the arbitrary claim of claim 12 ~ 15.

17. 1 kinds of metrical information sending methods, is characterized in that, comprising:

Carry out in cell switch process or after completing cell merge in terminal, the indication information of the acquisition metrical information that receiving target base station sends, described metrical information is that described terminal is measured and reports;

Described metrical information is sent to described target BS.

18. methods as claimed in claim 17, is characterized in that, send described metrical information, specifically comprise to described target BS:

Described metrical information is sent to described target BS by X2 interface or S1 interface.

19. methods as claimed in claim 18, it is characterized in that, described metrical information is carried in handover request Handover Request; Or described metrical information is carried at sequence state and transmits in SN status Transfer.

20. 1 kinds of metrical information dispensing devices, is characterized in that, comprising:

Receiving element, for carrying out in cell switch process or after completing cell merge in terminal, the indication information of the acquisition metrical information that receiving target base station sends, described metrical information is that described terminal is measured and reports;

Transmitting element, for sending described metrical information to described target BS.

21. devices as claimed in claim 20, is characterized in that,

Described transmitting element, specifically for sending described metrical information by X2 interface or S1 interface to described target BS.

22. devices as claimed in claim 21, is characterized in that,

Described transmitting element, sends to target BS specifically for described metrical information being carried in handover request Handover Request by X2 interface or S1 interface; Or described metrical information is carried in sequence state transmission SN status Transfer and sends to target BS by X2 interface or S1 interface.

23. 1 kinds of base station equipments, is characterized in that, comprise the device described in claim 20,21 or 22.