WO2012024956A1

WO2012024956A1 - Reporting method and terminal for automatic neighbor relation

Info

Publication number: WO2012024956A1
Application number: PCT/CN2011/075318
Authority: WO
Inventors: 贺美芳; 史莉荣
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-08-24
Filing date: 2011-06-03
Publication date: 2012-03-01
Also published as: CN102378248A

Abstract

A reporting method and terminal for automatic neighbor relation are disclosed by the present invention, and the method includes the following steps: the terminal receives the Automatic Neighbor Relation (ANR) measurement control information sent down from a network side; in the case that the terminal itself is in a common connection state, the terminal performs the ANR measurement according to the ANR measurement control information and reports the result of the ANR measurement to the network side. The present invention saves the air resource, makes the terminal have more spare time to obtain the system information, ensures the successful completion of the measurement, and further ensures the processing of normal service in a dedicated connection state.

Description

TECHNICAL FIELD The present invention relates to the field of communications, and in particular to a method and a terminal for an automatic Neighbor Relation (ANR). BACKGROUND OF THE INVENTION With the increase in the number of users of cellular mobile communication system operators and the increase in user demand for services, the scale of cellular networks is expanding, the number of base stations is increasing, and various types of cellular mobile communication systems are continuously deepening each other's cooperation. operating. Correspondingly, the management and maintenance of the neighbor relationship of cells in the cellular network becomes more and more cumbersome. Figure 1 is a system architecture diagram of a Universal Terrestrial Radio Access Network (UTRAN). As shown in Figure 1, the UTRAN mainly includes a Radio Network Controller (RNC) and a base station ( NodeB) Two basic network elements. The neighbor relationship between multiple cells under each NodeB will dynamically change with the needs of network planning optimization and the change of the wireless environment. In UTRAN, the correct neighborhood relationship in the small interval is very important for network performance. For example, the correct neighbor relationship can implement the optimal handover of the mobile user or user equipment (UE) to ensure service continuity and help the network achieve load balancing, capacity allocation, and energy saving. In the manual neighboring area, the network side notifies the configured neighbor relationship to the UE through a system broadcast message or a proprietary control message, and the UE further stores and utilizes the received cell neighbor relationship. However, this well-configured neighborhood relationship may be outdated and does not truly reflect real-time neighbor relationships. For example, due to the intricacies of the wireless environment, especially in urban areas where high-rise buildings are dense, it is difficult to determine exactly which neighboring areas should be configured in a certain cell at the beginning of network planning; or, a new cell or cell attribute change is added to the system, and it is not updated in time. The neighbor relationship of the cell; or, the change of the environment, the omission of the network planner, etc., will cause the neighboring area information to be updated in time, causing the UE to fail to switch to other cells in time, and the load of the cell is too high, and the signal quality is high. The occurrence of deterioration, severe interference, or dropped calls by users. The cell information is composed of cell physical layer information and cell high layer information. The physical layer information of the cell is the primary scrambling code (PSC) of the cell. In the network planning, the PSC is unique in a certain area. UTRAN's high-level cell information includes public land mobile networks (Public Land Mobile Network, abbreviated as PLMN) and the cell Identifier (CID) in this PLMN, or include PLMN, routing area identifier

(Routing Area Identifier, referred to as RAI) and Location Area Identifier (LAI), or include PLMN, RAI, LAI, and CID. Evolved UTRAN (E-UTRAN for short) The high-level information of the cell includes Cell Global Information (CGI), Tracking Area Code (TAC), and Public Land Mobile Network List PLMNlist. . Global System for Mobile Communication (GSM) The high-level information of the cell includes CGI and Routing Area Code (RAC). In order to be able to configure the neighbor relationship of the cell in time, an ANR function is proposed in the UMTS system to add a neighbor cell list. The ANR function refers to the UE to measure the physical layer information of the new cell and report it to the network side, and the network side can learn the high-level information of a specific cell from the UE, and the network side completes the function of adding the neighbor cell list, and does not need to manually add. Adjacent cells are automatically completed by the system. If the inter-frequency scene or the inter-system scenario requires the terminal to start the ANR measurement, it may not be necessary to use the gap of the network control to perform the measurement. The terminal also needs to use the autonomous gap to obtain the system information, and the terminal is on the terminal. The measurement result also needs to occupy a certain resource. Therefore, in the dedicated connection state, if the terminal needs to perform measurement and uplink, the resources used by the terminal for performing other services (for example, transmitting data) will be correspondingly reduced, The terminal in the connected state needs to process more services. Therefore, the four-way measurement method will adversely affect the normal service processing of the terminal. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a method and a terminal for reporting an automatic adjacency relationship to solve the above problems. An aspect of the present invention provides a method for reporting an automatic adjacency relationship, including: receiving, by a terminal, ANR measurement control information sent by a network side; and performing ANR measurement according to ANR measurement control information when the terminal is in a public connection state; , report the result of the ANR measurement to the network side. Preferably, the network side sends the ANR measurement control information to the terminal in the dedicated connection state, and the network side notifies the terminal to convert from the dedicated connection state to the public connection state; the terminal converts from the dedicated connection state to the public connection state; the terminal is in the public connection state The ANR measurement control information is used for ANR measurement, and the ANR measurement result is reported to the network side. Preferably, the network side carries ANR measurement control information and a cell for indicating that the terminal converts from the dedicated connection state to the public connection state in the same message. Preferably, the same message is: a radio bearer reconfiguration message or a measurement control message. Preferably, the network side carries ANR measurement control information and cells for indicating that the terminal converts from the dedicated connection state to the public connection state in two different messages. Preferably, the network side carries the ANR measurement control information in the measurement control message, and the radio bearer reconfiguration message carries the cell for indicating that the terminal converts from the dedicated connection state to the public connection state. Preferably, before the terminal receives the ANR measurement control information sent by the network, the method further includes: the terminal sending information about whether the terminal supports the ANR to the network side; the network side determining, according to the information, whether the terminal supports the ANR, and if yes, continuing the subsequent processing. . Preferably, the terminal sends information about whether the ANR is supported by the predetermined message to the network side, where the predetermined message includes one of the following: an RRC connection request, and an RRC connection completion. Another aspect of the present invention provides a terminal, including: a receiving module, configured to receive ANR measurement control information sent by a network side; and a measurement module configured to measure control information according to ANR when the terminal is in a public connection state The ANR measurement is performed; the reporting module is configured to report the result of the ANR measurement to the network side when the terminal is in the public connection state. Preferably, the terminal further includes: a sending module, configured to send information about whether the terminal supports ANR to the network side. According to the present invention, after receiving the ANR measurement control information, the terminal performs the measurement and reporting of the ANR when it is in the public connection state, and solves the problem that the measurement reporting method affects the processing of the normal service in the related art. The air resources are saved, so that the terminal has more free time to obtain system information, which ensures the smooth completion of the measurement; in addition, the normal service processing in the dedicated connection state is also guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the drawing: 1 is a schematic diagram of a UTRA system architecture according to the related art; FIG. 2 is a flowchart of a method for reporting an automatic adjacency relationship according to an embodiment of the present invention; FIG. 3 is a structural block diagram of a terminal according to an embodiment of the present invention; FIG. 5 is a detailed flowchart of the ANR method according to Embodiment 1 of the present invention; FIG. 6 is a diagram of the ANR method according to Embodiment 2 of the present invention; Detailed flow chart. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The present embodiment provides a method for reporting an automatic adjacency relationship, and FIG. 2 is a flowchart of a method for reporting an automatic adjacency relationship according to an embodiment of the present invention. The method includes: Step S202: The terminal receives the network side The ANR measurement control information is sent; in step S204, the terminal performs ANR measurement according to the ANR measurement control information when the terminal is in the public connection state, and reports the result of the ANR measurement to the network side. Considering that if the UE completes the ANR measurement in the dedicated connection state, it wastes the air resources and affects the normal service. In addition, the terminal does not have more idle time to obtain the system information, which affects the ANR measurement. Therefore, the present embodiment provides In the method, after receiving the ANR measurement control information, the terminal performs the ANR measurement according to the saved ANR measurement control information when the user is in the public connection state, and reports the ANR measurement result to the network side, thereby ensuring the service in the dedicated connection state. The normal processing, while ensuring the smooth progress of the measurement. The process of sending the ANR measurement control information to the network side terminal may send the ANR measurement control information according to the existing manner, that is, when the terminal is in the dedicated connection state, the corresponding processing process includes: the network side is in a dedicated connection state. The terminal sends the ANR measurement control information, and the network side notifies the terminal to convert from the dedicated connection state to the public connection state; the terminal converts from the dedicated connection state to the public connection state; the terminal performs ANR measurement according to the ANR measurement control information in the public connection state, The result of 4 艮 ANR measurements on the network side. Through the above processing method, it is not necessary to change the timing of the ANR measurement control information sent by the network side, and the existing process is repaired. Smaller, easier to implement. It should be noted that the network side can also send the ANR measurement control information when the terminal is in the public connection state, thereby eliminating the process of the terminal analyzing the ANR measurement control information in the dedicated connection state, further reducing the terminal in the dedicated mode. The occupation of system resources in the connected state further ensures the normal processing of the terminal services in the dedicated connection state. In the case of intra-frequency measurement, the ANR measurement control information may include: an intra-frequency measurement list including a measurement indication of the intra-frequency detection set and/or an indication of acquisition of high-level information of a designated cell. In the case of inter-frequency measurement, the ANR measurement control information may include: an inter-frequency measurement list including a measurement indication of the inter-frequency detection set and/or an indication of acquisition of high-level information of a designated inter-frequency cell. In the case of inter-system measurement, the ANR measurement control information may include: an inter-system measurement list including a measurement indication of an inter-system detection set and/or an indication of acquisition of high-level information of a designated inter-system cell. For the transmission of ANR measurement control information and state transition information, the processing on the network side can be flexible, for example: (1) The network side carries the ANR measurement control information in the same message and is used to indicate that the terminal converts from the dedicated connection state to the public connection. State of the cell. This method can reduce the number of messages sent by the network side, thereby reducing the overhead of air interfaces. The same message above may be: a radio bearer reconfiguration message or a measurement control message. Of course, those skilled in the art can understand that other existing messages or newly created messages can also be carried. The advantage of carrying the radio bearer reconfiguration message or the measurement control message is that the above message originally carries a part of the existing information to be carried, and therefore, the modification of the message format only needs to take the method of adding the cell. The format of the message is modified to be small, easy to implement, and also reduces development costs.

(2) The network side carries ANR measurement control information and cells for indicating that the terminal is converted from the dedicated connection state to the public connection state in two different messages. Since the resolution process of the two types of messages by the terminal in the related art is relatively mature, the processing method of the terminal does not need to modify the message parsing mechanism of the terminal, and the processing of the terminal is relatively small and easy to implement. Specifically, the network side may carry the ANR measurement control information in the measurement control message, where the radio bearer reconfiguration message carries a cell for indicating that the terminal converts from the dedicated connection state to the public connection state. The information delivered by the existing message is simple and convenient for terminal analysis. The upper 4艮 of the measurement result can preferably be measured by the method of measuring 4 上 ,

4艮 can be through a separately defined message (such as Additional Measurement Report), or through the existing RRC message. The existing RRC message includes one of the following: Initial direct message INITIAL DIRECT TRANSFER, measurement 4 MEASUREMENT REPORT, RRC CONNECTION REQUEST, UPLINK DIRECT TRANSFER, Cell Update Message CELL UPDATE. As a preferred embodiment, the terminal may send information about whether the ANR is supported to the network side. The network side determines whether the terminal supports the ANR according to the information. If yes, the network side sends the ANR measurement control information to the terminal. Otherwise, the terminal may end. deal with. The terminal actively reports to the network side whether it has the ANR capability, so that the network side can know whether the terminal has the ANR capability, and then the network side only sends the ANR measurement control information to the ANR-capable terminal, without the ANR. The ability of the terminal to send, avoiding the waste of air interface signaling. Preferably, the terminal may send information about whether the ANR is supported to the network side by using a predetermined message, where the predetermined message may be one of the following: a radio resource control (Radio Resource Control, RRC for short) connection request, and an RRC connection completion. In another embodiment, an improved terminal is provided. FIG. 3 is a structural diagram of a terminal according to an embodiment of the present invention. As shown in FIG. 3, the terminal may include: a receiving module 32 configured to receive a network. The ANR measurement control information is sent by the side; the measurement module 34 is coupled to the receiving module 32, and is configured to perform ANR measurement according to the ANR measurement control information when the terminal is in the public connection state; the reporting module 36 is coupled to the measurement module 34, Set to the result of 4 艮 ANR measurements on the network side with the terminal in the public connection state. 4 is a block diagram of a preferred structure of a terminal according to an embodiment of the present invention. As shown in FIG. 4, the terminal may further include: a sending module 42 configured to send information about whether the terminal supports ANR to the network side. The embodiment 1-2 described below combines the technical solutions of the above-described plurality of preferred embodiments. Example 1 The embodiment describes a process in the scenario where the ANR measurement control information and the state transition are separately delivered. FIG. 5 is a detailed flowchart of the ANR reporting method according to Embodiment 1 of the present invention, including: Step 501: The UE passes the public Control Channel (Common Control Channel, CCCH for short): The ARP capability indication is carried in the radio connection setup request message to inform the network side RNC whether the ANR capability is available. The specific ANR capability indication bits can be as shown in Table 1: Table 1 Terminal ANR capability support cells

Step 502: The network side receives the wireless connection establishment request message, and learns that the terminal supports the ANR, and determines that the terminal sends the RRC connection establishment message in the dedicated connection state (cell_dch). Step 503: The terminal switches from the idle state to the dedicated connection state, and sends a radio resource control connection complete message on a dedicated channel (Dedicated Channel, DCH for short). Step 504: The network side finds that there may be a possibility of missing the neighboring cell in the vicinity of the terminal, and selects the terminal in the state to perform the ANR measurement, and then sends a measurement control message on the Dedicated Control Channel (DCCH) channel. Measurement Control Message ) For this terminal, this control message contains control information for the ANR measurement. The control information of the specific ANR measurement is similar to the ANR measurement control of the terminal in the dedicated state proposed by the industry, and also includes three scenarios of intra-frequency measurement, inter-frequency measurement and inter-system measurement. The following description is separately made: In the case of intra-frequency measurement, the ANR measurement control information includes: an intra-frequency measurement list including a measurement indication of the intra-frequency detection set and/or an indication of acquisition of high-level information of a designated cell. In the case of inter-frequency measurement, the ANR measurement control information includes: an inter-frequency measurement list including a measurement indication of an inter-frequency detection set and/or an indication of acquisition of high-level information of a designated inter-frequency cell. In the case of inter-system measurement, the ANR measurement control information includes: an inter-system measurement list including a measurement indication of an inter-system detection set and/or an indication of acquisition of high-level information of a designated inter-system cell. Step 505: The terminal receives the ANR measurement control information of the network side, and saves the information. Step 4: 506, the terminal receives a wireless 7-load reconfiguration message on the network side, and the message requires the terminal to switch to the public connection state (cell_fach). Step 507: The terminal receives the radio 7 load configuration message, performs state transition and resource reconfiguration, and returns a radio bearer configuration completion message to the network side. In step 508, the terminal is in the public connection state, and the terminal uses the previously saved ANR measurement information to perform measurement, and reports the relevant measurement result to the network side through the measurement report. The measurement report includes at least the following: detecting physical layer information of the set cell, and/or high layer information of the specific cell. The report of the measurement report can be sent through a separately defined message (such as the Additional Measurement Report) or through the existing RRC message. The existing RRC message includes one of the following: the initial direct message INITIAL DIRECT TRANSFER, Measurement 4 MEASUREMENT REPORT, RRC CONNECTION REQUEST, UPLINK DIRECT TRANSFER, Cell Update Message CELL UPDATE. In step 509, the network side receives the ANR measurement result report, and performs neighbor relationship update and/or handover decision. Embodiment 2 This embodiment describes a processing procedure in a scenario in which an indication of ANR measurement control information and state transition is delivered by the same message, and FIG. 6 is a detailed flowchart of a method for ANR on Embodiment 2 of the present invention. The method includes the following steps: Step 601: The UE sends a request message to the network side RNC through a CCCH: Wireless Connection. Step 602: The network side receives the wireless connection establishment request message, and learns that the terminal supports the ANR, and determines that the terminal is in the dedicated connection state (cell_dch), and sends a radio resource control establishment message. Step 603: The terminal switches from the idle state to the dedicated connection state, and sends a radio resource control connection complete message on the DCH channel. The ANR capability indication is carried in the message to indicate whether the ANR capability is available. The specific ANR capability indication is located in the terminal radio access capability cell, as shown in Table 1. Step 604: The network side finds that there may be a possibility of missing the neighboring cell in the vicinity of the terminal, and selects the terminal to perform ANR measurement, and then includes the control information for the ANR measurement in the radio bearer reconfiguration message. Step 605: The terminal receives the dedicated ANR measurement control of the network, first performs state transition to the public connection state (cell_fach), and then performs related measurement, and reports the measurement report to the network side through the radio bearer reconfiguration completion message. The measurement report includes at least the following: detecting physical layer information of the set cell, and/or high layer information of the specific cell. Step 606: The network side receives the ANR measurement result report, and performs neighbor relationship update and/or handover decision. In summary, in the solution provided by the foregoing embodiment, after receiving the ANR measurement control information sent by the network side, the terminal waits for the self-switching to the public connection state, completes the relevant measurement, and reports the measurement result to the subsequent uplink air interface message. Network side. In this scheme, the ANR measurement of the dedicated control is completed by using the terminal of the public connection state, realizing the automatic neighborhood relationship, saving the air resources, and having more free time to acquire the system information. Industrial Applicants The solution provided by the above embodiments utilizes a publicly connected terminal to perform ANR measurement of dedicated control, realizing automatic neighbor relationship reporting, saving air resources, and having more idle time to acquire system information. In addition, there is no change to the existing network architecture, it is easy to implement, and it has strong industrial applicability. It should be noted that the steps shown in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and, although the logical order is shown in the flowchart, in some cases, The steps shown or described may be performed in an order different from that herein. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Where in the invention ^" God and principle Any modifications, equivalent substitutions, improvements, etc. made therein are intended to be included within the scope of the present invention.

Claims

Claim

1. An automatic adjacency relationship ANR reporting method, including:

The terminal receives the ANR measurement control information sent by the network side;

The terminal performs ANR measurement on the ANR measurement control information when the terminal is in the public connection state, and reports the result of the ANR measurement to the network side.

2. The method according to claim 1, wherein

Transmitting, by the network, the ANR measurement control information to the terminal in a dedicated connection state, and the network side notifying the terminal to convert from the dedicated connection state to the public connection state;

Converting, by the terminal, the dedicated connection state to the public connection state;

The terminal performs the ANR measurement on the ANR measurement control information in the public connection state, and the result of the ANR measurement on the network side.

3. The method according to claim 2, wherein the network side carries the ANR measurement control information in the same message and is used to indicate that the terminal converts from the dedicated connection state to the public connection state. Cell.

4. The method of claim 3, wherein the same message is: a wireless 7 load configuration message or a measurement control message.

5. The method according to claim 2, wherein the network side carries the ANR measurement control information in two different messages and is used to indicate that the terminal converts from the dedicated connection state to the public Connected cells.

The method according to claim 5, wherein the network side carries the ANR measurement control information in a measurement control message, and is carried in a radio bearer reconfiguration message to indicate that the terminal is from the dedicated connection state. A cell that is converted to the publicly connected state.

The method according to claim 1, wherein before the terminal receives the ANR measurement control information sent by the network side, the method further includes:

Sending, by the terminal, information about whether it supports ANR to the network side; The network side determines whether the terminal supports ANR according to the information, and if so, continues the subsequent processing.

The method according to claim 7, wherein the terminal sends information about whether it supports ANR to the network side by using a predetermined message, where the predetermined message includes one of the following: a radio resource control RRC connection request The RRC connection is completed.

9. A terminal comprising:

The receiving module is configured to receive an automatic adjacency relationship ANR measurement control information sent by the network side;

a measuring module, configured to perform ANR measurement according to the ANR measurement control information if the terminal is in a public connection state;

The reporting module is configured to report the result of the ANR measurement to the network side when the terminal is in a public connection state.

The terminal according to claim 9, wherein the terminal further comprises: a sending module, configured to send information about whether the terminal supports ANR to the network side.