WO2008128420A1

WO2008128420A1 - A method, apparatus and terminal unit for transmitting coexistence message

Info

Publication number: WO2008128420A1
Application number: PCT/CN2008/000694
Authority: WO
Inventors: Shulan Feng; Xuyong Wu; Jinnan Liu
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2007-04-23
Filing date: 2008-04-03
Publication date: 2008-10-30
Also published as: CN101296497B; CN101296497A

Abstract

A method and apparatus for transmitting coexistence message, which transmit the coexistence message by main subframe of BS. A terminal unit is disclosed, which receives the signal from a neighbor BS, during the main subframe of a non-serving BS; extracts coexistence message of neighbor BS from received management message correctly in main subframe of neighbor BS; according to the reporting mechanism of coexistence message, reports the coexistence message to a serving BS. Since the coexistence message is transmitted during the main subframe of BS in the present invention, it's not necessary to design specific transmitting format, such that it's simple to realize and occupies less air-interface resourses.

Description

Coexistence message transmission method and device, terminal device

TECHNICAL FIELD The present invention relates to the field of communications, and more particularly to techniques for transmitting coexistence messages. BACKGROUND OF THE INVENTION With the development of wireless communication technologies, the demand for wireless spectrum resources is becoming more and more intense. Since the radio spectrum resources are very limited, it is necessary to improve the utilization of radio spectrum resources, especially the utilization of spectrum resources in the licensed frequency band.

In order to improve the utilization of wireless spectrum resources, many communication technologies that make full use of idle spectrum resources, such as cognitive radio technologies, have been proposed in recent years. It is stipulated in the cognitive radio technology that a wireless device supporting cognitive radio technology dynamically senses the surrounding environment and adaptively dynamically adjusts its internal state according to changes in the surrounding environment. On the other hand, when a new base station initially enters the network, it needs to use a certain spectrum sensing method to detect whether other base stations occupy the frequency band. If the idle channel can be detected, the channel is selected as its own working channel; If the idle channel is not available, the new base station needs to adopt a corresponding subframe allocation manner, such as a time sharing channel, a sharing mode, and share a certain channel with the surrounding neighboring base stations.

At present, there are generally several types of subframes: a system with a higher priority, a time period for transmitting at maximum power, called a primary subframe of the system, and the corresponding system is called a primary system; and at the same time period Other communication systems that use the same channel must reduce their own transmit power or even silence to avoid interference with the primary system. This time period is called the secondary subframe of the system. For those services that are located at the center of the base station and are not interfered by neighbors, each base station can simultaneously transmit services related to these terminals to improve spectrum utilization. This subframe is called a common subframe or a shared subframe.

There are many ways to allocate sub-frames. Take the system shown in Figure 1 as an example. Figure 2 shows an implementation. Time-sharing shared channel A sub-frame allocation method. In the common subframe and the shared subframe, the system A transmits data related to the terminal 1 and the terminal 2, and at the same time, the system B transmits data related to the terminal 5 and the terminal 6. In the main subframe of system A, system A communicates with terminal 3, and system B needs to reduce the transmission power or not to transmit at this time, thereby avoiding interference to system A; in system B, the system B communicates with terminal 4, system A At this time, it is necessary to reduce the transmission power or not to transmit, thereby avoiding interference to system B.

At present, each base station generally adopts a method of terminal assisted interference detection to discover the condition of neighboring neighbor base stations, so as to adjust their own transmit power in time to avoid mutual interference. Still taking the system described in FIG. 1 as an example, the process of terminal-assisted maintenance detection is as shown in FIG. 3, including: Base station A broadcasts the coexistence MAC used by the base station to communicate with the neighbor through the air interface (Media Access

Control, medium access control layer) layer information; the terminal 4 within the coverage of the base station A detects a coexistence message from the interfering neighbor base station A, and transmits the detected broadcast signal of the base station A to its own serving base station B. The base station B can know that there is an interference neighbor base station A according to the signal reported by the terminal 4, and notify the backbone network to detect the interference neighbor base station A; after that, the backbone network notifies the base station A that there is an interference neighbor base station B.

The prior art related to the present invention provides a method for a base station to broadcast a coexistence MAC layer message through an air interface, which adopts the following two transmission modes:

The first transmission method is to transmit these MAC layer messages by using energy pulses sent in CSI (Coexistence Signaling Interval), that is, using energy transmission and no energy transmission to represent binary 0 and 1, or The length of the pulse transmission is expressed as binary 0 and 1. This approach is independent of the transport technology used by the physical layer and is therefore suitable for system communication between different physical layers.

This transmission method needs to transmit Preamble (preamble) and adopts a more robust modulation and coding method, so it takes a long transmission time and has a long energy pulse length. In addition, since the coexistence signaling interval is transmitted every frame, Waste of air interface resources.

The second transmission mode is to perform MAC layer message transmission by using CMI (Coexistence Message Interval), which is used to pre-allocate time slots for transmitting coexistence MAC layer messages, as in some current protocols. Define a time slot of approximately 1.9ms every 20ms. Dedicated to transport coexistence MAC layer messages without data transmission. The CMI includes an uplink CMI and a downlink CMI. The downlink CMI is used for base station broadcast coexistence messages, such as BSD (Base Station Descriptor), including the IP (Internet Protocol) address of the base station, the ID of the base station, and some such as RF (Radio). Frequency, radio frequency, sector number, and other information related to coexistence; uplink CM1 is used by the terminal to transmit a coexistence message to the neighbor base station, such as SSURR (Subscriber Station Uplink RF Descriptor), including the ID of the terminal serving base station. , the IP address of the serving base station, and so on.

Coexistence MAC layer messages transmitted through air interfaces, in addition to BSD, SSURF, there are other broadcast messages, such as some messages for dynamic primary subframe allocation, such as M ADD (Master Advertisement Discovery Descriptor ), SADD ( Slave Advertisement Discovery Descriptor ), ADPD ( Advertisement Discovery Policy Descriptor ); or MAC layer messages for coexistence neighbor communication, such as CXP-REQ-MAC (Coexistence Protocol Request MAC Message), CXP-RSP-MAC (Coexistence Protocol Response MAC Message), etc. .

It can be seen from the second transmission mode that it needs to reserve a specific resource for the coexistence MAC layer message, thereby occupying valuable air interface resources. In addition, since the receiver and the sender belong to different systems, they have not been performed beforehand. In the synchronization process, in order to ensure that the receiver can receive the receiver reliably, the sender needs to carefully set the sent message, for example, it needs to include a long preamble Preamble, and adopts a PHY (physical layer) profile (including modulation) that is negotiated in advance on the whole network. Mode, coding method, used channel, subcarrier, etc.), which increases complexity and limits the scope of application. Summary of the invention

Embodiments of the present invention provide a coexistence message transmission method and apparatus, and a terminal device, which is not only simple to implement, but also occupies less air interface resources.

Embodiments of the present invention are implemented by the following technical solutions:

An embodiment of the present invention provides a coexistence message transmission method, including:

The base station selects a non-interfering subframe and uses it as a primary subframe; Coexistence messages of the base station are transmitted through the primary subframe.

A coexistence message transmission method, comprising:

Receiving, by the terminal, a signal from the neighboring base station during a primary subframe of the neighboring base station of the serving base station; extracting, from the received management message transmitted by the neighboring base station during the primary subframe, a coexistence message of the neighboring base station, and The coexistence message of the neighboring base station is reported to the serving base station.

An embodiment of the present invention further provides a coexistence message transmission apparatus, including:

a selecting unit, configured to select a interference-free subframe from the idle subframe; and use the interference-free subframe as a primary subframe;

a transmitting unit, configured to transmit a coexistence message by using the primary subframe.

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

An acquiring unit, configured to receive a signal from the neighboring base station during a primary subframe of a neighboring base station of the terminal serving base station; and extract a coexistence message of the neighboring base station from a management message transmitted by the primary subframe of the received neighboring base station;

The reporting unit is configured to report the coexistence message of the neighboring base station to the serving base station of the terminal. It can be seen from the foregoing specific embodiments provided by the embodiments of the present invention that the primary subframe of the base station is used to transmit the shared message, so that the special transmission format is not required, so that the implementation is simpler and less occupied than the prior art. Resources. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural diagram of a system provided by the background art;

2 is a schematic diagram of a subframe allocation situation for implementing a time sharing channel according to the prior art; FIG. 3 is a flowchart of auxiliary interference detection provided by the background technology;

Figure 4 is a flow chart of the first embodiment of the present invention;

Figure 5 is a schematic structural view of a third embodiment of the present invention;

Figure 6 is a schematic structural view of a fourth embodiment of the present invention;

Fig. 7 is a schematic structural view of a fifth embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The first embodiment of the present invention provides a coexistence message transmission method, which not only achieves simplicity but also occupies less air interface resources by transmitting a coexistence MAC layer message in a primary subframe of a base station. The implementation process is shown in Figure 4, including:

Step S101: The base station selects a non-interfering subframe, and uses the subframe as a primary subframe, and broadcasts its own coexistence message through the primary subframe. The so-called interference-free subframe means that in this subframe, only the base station determined to be the primary subframe can transmit, and the other neighbor base stations are silent.

The foregoing coexistence message includes: an ID of the base station; or an IP address of the base station; or an IP address of a proxy of the base station. It may further include an antenna sector number of the base station; or a GPS (Global Positioning System) location information of the base station; or a subframe number of the base station; or a message for dynamic primary subframe allocation, such as MADD, SADD, Information contained in a message type such as ADPD; or a coexistence MAC layer message for communicating with a neighbor base station, such as information contained in CXP-REQ-MAC, CXP-RSP-MAC.

Step S101 can be implemented by two methods:

The first type: assigns a management message type to a type of coexistence message; and uses the primary subframe to transmit the above-mentioned management message type and its corresponding coexistence message as a management message of the base station. The transmission mode of the coexistence message is the same as that of other management messages of the base station, such as DL-MAP (downlink mapping).

For example, for a current BSD (including a base station ID, an IP address of a base station, or an IP address of a proxy of a base station (Proxy)), a coexistence MAC message such as MADD, SADD, PADD, etc., respectively, a management message type is assigned; A frame, broadcasting a coexistence MAC message corresponding to each management message type.

The second type: a type of coexistence message is added as a new information element to a standard management message of the base station; the coexistence message is transmitted by transmitting the above-mentioned standard management message through the primary subframe of the base station.

For example, in an existing DL-MAP message (including the ID of the base station), add an extended message class. Type, used to transmit the IP address of the base station's IP address or base station's proxy (Proxy), and other coexistence information related to coexistence information, such as the location of the base station GPS. Alternatively, in the existing DL-MAP message, a new TLV (Type Length Value) message type is added, and the IP address of the base station or the IP address of the proxy of the base station, or other coexistence information of the information related to the coexistence is transmitted. Since the ID of the base station has already been transmitted in the existing DL-MAP, the base station ID may not be transmitted repeatedly when the coexistence message is transmitted.

The coexistence message may be transmitted in each primary subframe of the base station; or may be transmitted through a certain primary subframe of the base station, that is, not transmitted in each primary subframe, possibly after a certain primary subframe Coexistence messages are transmitted once in the frame to further save resources.

Step S102: The terminal receives the signal from the neighboring base station during the primary subframe of the non-serving base station; extracts the coexistence message of the neighboring base station from the received management message of the primary subframe of the neighboring base station, and according to the coexistence message The reporting mechanism reports the above coexistence message to the serving base station.

A neighbor base station refers to a base station adjacent to a terminal serving base station among all non-serving base stations.

In step S102, the terminal may receive a signal from each non-serving base station during each primary subframe of the non-serving base station, and determine a signal of the neighboring base station, or the terminal receives each of the non-serving base stations during a certain primary subframe. The signal of the non-serving base station, from which the signal of the neighbor base station is determined. That is, the terminal may not be received in the primary subframe of each non-serving base station, and may be received in one or more primary subframes after several primary subframes.

The process of reporting the coexistence message to the serving base station by the terminal may be as follows: First, after detecting the coexistence message of the neighboring base station, the terminal reports the coexistence message to the serving base station.

There are three opportunities for the terminal to report coexistence messages to the serving base station:

The terminal can immediately send the coexistence message to the serving base station; when the time interval of the same coexistence message reported by the terminal to the same neighboring base station exceeds a certain value, the coexistence message is reported to the serving base station; After the coexistence message of the serving base station reports the request, the coexistence message is reported to the serving base station.

Second, the terminal will coexist after detecting the coexistence message of the same neighbor base station several times. The message is reported to the serving base station.

In the second case, the timing at which the terminal reports the coexistence message to the serving base station is similar to the first case and will not be described here.

The third type, after the terminal detects the coexistence message of the neighboring base station, if the terminal has reported the coexistence message of the neighboring base station to the serving base station, the terminal does not report the message; if the terminal never reports the neighbor base station to the serving base station The coexistence message is reported to the serving base station;

In the third case, the timing at which the terminal reports the coexistence message to the serving base station is similar to the first case and will not be described here.

The fourth, after the terminal detects the coexistence message of the neighboring base station, and finds that the coexistence message of the same base station is updated, the terminal reports the coexistence message to the serving base station.

In the fourth case, the timing at which the terminal reports the coexistence message to the serving base station is similar to the first case and will not be described here.

The fifth type, after the terminal detects the coexistence message of the neighboring base station, and finds that the coexistence message of the same base station is updated, only the updated part of the coexistence message is selected and reported to the serving base station. In the fifth case, the timing of reporting the coexistence message to the serving base station by the terminal is similar to the first case and will not be described here.

In the sixth case, after the terminal detects the coexistence message of the neighboring base station, and finds that the serving base station has obtained the coexistence message of the neighboring base station, but the serving base station does not know that the terminal is the interfered terminal, the terminal reports to the serving base station that it is the neighbor. A new interfered terminal added to the base station.

The timing of reporting the coexistence message to the serving base station by the terminal in the sixth case is similar to the first case and will not be described here.

The following describes the step S102 by way of example:

Assuming that the coexistence message is transmitted as part of the standard DL-MAP message, the neighbor base station broadcasts the DL-MAP message containing the coexistence message. The process of receiving the DL-MAP message broadcast by the neighbor base station is as follows:

The terminal first performs downlink physical layer synchronization to obtain a frame header position and a position of each subframe; After the arrival of each sub-frame header, the terminal synchronizes to the sub-frame header and receives the DL-FCH (downlink frame control hander) of the Preamble;

For the OFDMA (Optical Frequency Division Multiple Access) physical layer, the terminal needs to determine the received cell signal according to the correlation result by using the correlation of all local Preamble sequences at each frame header and subframe header. The DL-FCH of these cells is solved. For example, the terminal needs to use the cell ID and the segment ID corresponding to the Preamble sequence corresponding to the correlation peak of a certain threshold at each frame header and the header of the subframe, and the DL- of the cells are further solved by using the correlation of all the local Preamble sequences. FCH.

If the DL-FCH can be correctly decoded, the first burst is decoded according to the information of the DL-FCH, and if it can be correctly decoded, the coexistence message of the neighbor base station is extracted from the obtained DL-MAP message; If the DL-FCH is correctly decoded, or the first burst is not correctly decoded, the other data after the subframe is discarded until the next subframe header.

After the terminal extracts the coexistence message of the neighboring base station from the correctly received DL-MAP message, the coexistence message that needs to be reported to the serving base station is determined according to the foregoing reporting mechanism, and is reported at the foregoing reporting timings. Give your own service base station.

Step S103: After obtaining the ID of the neighboring base station reported by the serving terminal, the serving base station considers the neighboring base station to be its own neighboring base station.

After the serving base station further obtains the IP address of the neighboring base station or interferes with the IP address of the neighboring base station agent, it can communicate with the neighbor base station through the backbone network or the intranet (Internet).

In order to support uplink coexistence message transmission, the second embodiment of the present invention provides another coexistence message transmission method, in which a terminal that can receive signals of a serving base station and a neighbor base station can be used as a relay terminal. The neighboring base station is configured to request the neighboring base station to allocate an uplink resource for transmitting the relay message, and then use the allocated uplink resource to transmit the uplink coexistence message to the neighboring base station.

The process of accessing the terminal as a relay terminal to the neighboring base station is the same as the process of accessing the base station by the ordinary terminal, except that the terminal needs to inform the base station in a certain manner (for example, through an information unit) that it is accessing the relay message. Instead of accessing to request a service. A third embodiment of the present invention provides a coexistence message transmission apparatus, which is structured as shown in FIG. 5, and includes: a selection unit and a transmission unit.

The signal transfer relationship between each unit is as follows:

The selecting unit selects a interference-free subframe from the idle subframe, and uses the interference-free subframe as the primary subframe;

The transmission unit transmits the coexistence message at the maximum transmission power by using the above-mentioned primary subframe determined by the above selection unit. There are two options for specific processing, as follows:

The first type is a management message type for a type of coexistence message. The management message type and a corresponding type of coexistence message are transmitted as a management message of the base station by using the primary subframe. The specific implementation is similar to the related description in the first embodiment, and will not be described in detail herein.

Second, a type of coexistence message is attached to a standard management message at the base station; the coexistence message is transmitted by transmitting the above-mentioned standard management message through the primary subframe of the base station. The specific implementation is similar to the related description in the first embodiment, and will not be described in detail herein.

A fourth embodiment of the present invention provides a terminal device, which has a structure as shown in FIG. 6, and includes: an acquiring unit and a reporting unit. The reporting unit includes: a reporting information determining unit and a reporting information transmission unit.

The signal transfer relationship between each unit is as follows:

The acquiring unit receives the signal from the neighboring base station during the primary subframe of the non-serving base station of the terminal; and extracts the coexistence message of the neighboring base station from the management message transmitted by the primary subframe of the correctly received neighboring base station;

The acquiring unit may receive the signal from the neighboring base station during each primary subframe of the non-serving base station of the terminal; or may receive the signal from the neighboring base station during a certain primary subframe of the non-serving base station of the terminal. That is to say, the acquiring unit may not receive the primary subframe of the non-serving base station of each terminal, and may receive one or more primary subframes after several primary subframes.

The reporting unit reports the coexistence message extracted by the acquiring unit to the serving base station according to the reporting mechanism of the coexistence message. Its processing is as follows:

After the co-existence message of the neighbor base station is detected by the report information determining unit, according to the coexistence The reporting mechanism of the message determines the coexistence message that can be reported, as follows:

The first reporting information determining unit determines, according to the reporting mechanism of the coexistence message, that the reported information is a coexistence message after detecting the coexistence message of the neighboring base station; or

The second report information determining unit determines, according to the reporting mechanism of the coexistence message, that the coexistence message of the same neighbor base station is detected several times as the coexistence message; or, the third report information determining unit After detecting the coexistence message of the neighboring base station, if the terminal has reported the coexistence message of the neighboring base station to the serving base station, it determines that there is no report message; if the terminal never reports the coexistence message of the neighbor base station to the serving base station , it will determine that the reported information is the above coexistence message; or

After the fourth reporting information determining unit detects the coexistence message of the neighboring base station, and finds that the coexistence message of the same base station is updated, it determines that the reported information is the coexistence message; or

After the fifth reporting information determining unit detects the coexistence message of the neighboring base station, and finds that the coexistence message of the same base station is updated, determining that the reported information is the updated part of the coexistence message; or

After the sixth reporting information determining unit detects the coexistence message of the neighboring base station, and finds that the serving base station has obtained the coexistence message of the neighboring base station, but the serving base station does not know that the terminal is the interfered terminal, determining that the reported information is the neighbor. A new interfered terminal added to the base station.

After the report information determining unit determines the coexistence message that can be reported, the report information transmission unit can report the coexistence message to the serving base station at a different timing. For example, the reported information is reported to the serving base station; or the determined upper information is reported to the service when the time interval from the last neighboring base station reporting the same coexistence message exceeds a certain value. The base station; or, after receiving the coexistence message reporting request from the serving base station, reports the determined report information to the serving base station.

A fifth embodiment of the present invention provides a terminal device, which is structured as shown in FIG. 7, and includes: a relay access request unit and a message transmission unit.

The signal transfer relationship between each unit is as follows: The relay access requesting unit, as a relay unit, accesses the neighboring base station, and requests the neighboring base station to allocate an uplink resource for transmitting the relay message to itself;

The message transmission unit transmits the uplink coexistence message to the neighbor base station by using the uplink resource requested by the relay access request unit.

It can be seen from the foregoing specific embodiments of the present invention that the basic message of the base station is used to transmit the shared message, so that the special transmission format is not required, so that the implementation is simple and takes up less air interface resources than the prior art. The spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of the inventions

Claims

Rights request

A method for coexistence message transmission, comprising:

The base station selects a non-interfering subframe and uses it as a primary subframe;

Coexistence messages of the base station are transmitted through the primary subframe.

The method according to claim 1, wherein the process of transmitting the coexistence message of the base station by using the primary subframe includes:

And assigning a management message type to the coexistence message according to the type of the coexistence message; transmitting, by using the primary subframe, the management message type and the coexistence message as a management message of the base station; or ,

And according to the type of the coexistence message, the coexistence message is attached to a standard management message of the base station; and the standard management message carrying the coexistence message is transmitted by the primary subframe of the base station.

The method according to claim 2, wherein the process of transmitting the coexistence message of the base station by using the primary subframe includes:

Transmitted by each primary subframe of the base station; or transmitted in one or more primary subframes of the base station after several primary subframes.

The method according to any one of claims 1, 2 or 3, wherein the coexistence message comprises: an ID of the base station; or an IP address of the base station; or an IP address of a proxy of the base station.

The method of claim 4, wherein the coexistence message further comprises: an antenna sector number of the base station; or a global positioning system GPS location information of the base station; or a subframe number of the base station; or a message for dynamic primary subframe allocation; or a coexistence medium access control layer MAC layer message for communicating with a neighbor base station.

6. The method of claim 1, further comprising:

The base station receives the neighbor base station coexistence message detected and reported by the served terminal; the base station sends the neighbor base station coexistence message according to the neighbor base station coexistence message The neighbor base station is confirmed to be an interference neighbor base station.

7. A coexistence message transmission method, comprising:

The method of claim 7, wherein the receiving, by the terminal, the signal from the neighboring base station during the primary subframe of the neighboring base station of the serving base station includes:

The terminal receives a signal from the neighbor base station during each primary subframe of the neighbor base station of the serving base station; or, the terminal receives a signal from the neighbor base station during a certain primary subframe of the neighbor base station of the serving base station.

The method according to claim 7, wherein the process of reporting the coexistence message to the serving base station specifically includes:

After the terminal detects the coexistence message of the neighboring base station, the terminal reports the coexistence message to the serving base station; or

After the coexistence message of the same neighboring base station is detected, the terminal reports the coexistence message to the serving base station; or

After detecting the coexistence message of the neighboring base station, if the terminal has reported the coexistence message of the neighboring base station to the serving base station, the terminal does not report; if the terminal never reports to the serving base station The coexistence message of the neighboring base station reports the coexistence message to the serving base station; or

When the terminal detects the coexistence message of the neighboring base station, and finds that the coexistence message of the same base station is updated, the coexistence message is reported to the serving base station; or

When the terminal detects the coexistence message of the neighboring base station, and finds that the coexistence message of the same base station is updated, only the updated part of the coexistence message is selected and reported to the serving base station; or the terminal detects the neighbor base station. Coexistence message, and discovering that the serving base station has obtained the coexistence message of the neighbor base station, but the serving base station does not know that the terminal is an interfered terminal, and the terminal reports to the serving base station that it is the neighbor. A new interfered terminal added to the base station.

The method according to claim 9, wherein the process of reporting the coexistence message to the serving base station specifically includes:

The terminal immediately reports the coexistence message to the serving base station; or

When the time interval of the same coexistence message reported by the terminal to the same neighboring base station exceeds a certain value, the coexistence message is reported to the serving base station; or

After receiving the coexistence message reporting request from the serving base station, the coexistence message is reported to the serving base station.

A coexistence message transmission device, comprising:

a selecting unit, configured to select a non-interference subframe from the idle subframe; and use the interference-free subframe as a primary subframe;

The device according to claim 11, wherein the transmitting unit is specifically configured to: assign a management message type to the coexistence message according to a type of the coexistence message; Transmitting the management message type and the coexistence message as a management message of the base station; or

13. A terminal device, comprising:

The reporting unit is configured to report the coexistence message of the neighboring base station to the serving base station of the terminal.

The terminal device according to claim 13, wherein the reporting unit further comprises:

The report information determining unit is configured to: after detecting the coexistence message of the neighbor base station, determine the report information; The report information transmission unit is configured to report the determined report information to the service base station immediately; or, when the time interval of the same coexistence message from the same neighbor base station exceeds a certain value The determined report information is reported to the serving base station; or, after receiving the coexistence message reporting request from the serving base station, the determined report information is reported to the serving base station.

The terminal device according to claim 14, wherein the reporting information determining unit specifically includes:

a first report information determining unit, configured to determine, after each coexistence message of the neighboring base station, the information that is the coexistence message; or

a second report information determining unit, configured to determine, after the coexistence message of the same neighbor base station is detected several times, the information is the coexistence message; or

a third reporting information determining unit, configured to: after detecting the coexistence message of the neighboring base station, if the terminal has reported the coexistence message of the neighboring base station to the serving base station, determining that there is no reporting information; The terminal never reports the coexistence message of the neighbor base station to the serving base station, and determines that the last information is the coexistence message; or

a fourth reporting information determining unit, configured to detect a coexistence message of the neighboring base station, and if the coexistence message of the same base station is updated, determine that the reported information is the coexistence message; or

a fifth reporting information determining unit, configured to detect a coexistence message of the neighboring base station, and when it is found that the coexistence message of the same base station is updated, determine that the reported information is an updated part of the coexistence message; or

a sixth report information determining unit, configured to detect a coexistence message of the neighbor base station, and find that the serving base station has obtained a coexistence message of the neighbor base station, but the serving base station does not know that the terminal is an interfered terminal The terminal reports to the serving base station that it is a newly added interfered terminal of the neighbor base station.