WO2015000124A1

WO2015000124A1 - Method and device for avoiding heterogeneous system interference in frequency spectrum reuse scheme

Info

Publication number: WO2015000124A1
Application number: PCT/CN2013/078634
Authority: WO
Inventors: 邹志强; 任瑞香; 蒋培刚; 徐波; 刘斌
Original assignee: 华为技术有限公司
Priority date: 2013-07-02
Filing date: 2013-07-02
Publication date: 2015-01-08
Also published as: CN105075318B; CN105075318A

Abstract

Disclosed are a method and device for avoiding heterogeneous system interference in a frequency spectrum reuse scheme, relating to the field of mobile communications. A base station obtains a heterogeneous system interference measurement result received by a terminal, performs a comparison and judgement based on the interference measurement result, determines interference sectors of the non-negligible interference created by the terminal, and allocates transmission resources for the terminal to avoid interference. In the prior art, transmission resources on all reused spectrum bands are avoided; therefore, by comparison, with respect to the use of such resources, embodiments of the present invention may effectively improve the precision with which interference is avoided, thereby increasing spectrum use efficiency.

Description

Method and device for avoiding different system interference in reuse spectrum scheme

The present invention relates to the field of mobile communications, and in particular, to a method and apparatus for avoiding interference from different systems in a reuse spectrum scheme. Background technique

With the growing demand for mobile communication services, cellular mobile communication systems are becoming more and more popular, and spectrum resources are becoming more and more tense on a global scale. It is difficult for operators to acquire new frequency bands, and the available frequency bands are extremely limited. In this case, reusing the spectrum resources that are currently in use is an important means for operators to use new communication systems.

When different communication systems share the spectrum, inter-system interference will occur, especially strong co-channel interference, which will affect the throughput performance of the coexisting system. In severe cases, the system may even block the system and greatly reduce system performance.

Since the inter-system interference existing between different communication systems cannot be effectively eliminated or reduced by filters or the like, the circumvention of the inter-system interference is usually separated by frequency isolation, so that different systems avoid using the same frequency band. In the prior art solution, by dividing the frequency band used between adjacent sectors, the transmission resources of the reused spectrum are avoided, and the transmission resources on all reused spectrums are avoided to reduce inter-system interference, but such The solution will waste a lot of spectrum resources in the shared frequency band, and it is difficult to reflect the value of the reused spectrum scheme. Summary of the invention

The present invention provides a method and apparatus for avoiding heterogeneous system interference avoidance in a reuse spectrum scheme, which can improve the accuracy of different system interference avoidance when transmitting resources on a reuse spectrum in a scenario of reusing spectrum. In order to achieve the above object, the embodiments of the present invention use the following technical solutions: In one aspect, the embodiments of the present invention provide a method for avoiding interference of different systems in a reuse spectrum solution, including: acquiring, by a base station, interference of a different system interference received by a terminal Measurement results, where the inter-system interference characterizes the interference caused by the terminal from other systems outside the current access system, and the amount of interference is characterized The physical quantity of the interference intensity of the different system, the interference quantity measurement result includes the interference quantity measurement result of the current serving sector and the adjacent sector of the terminal; the base station compares the interference quantity measurement result of the current serving sector of the terminal with the adjacent sector, And determining that the interference sector is obtained, wherein the interference sector is an adjacent sector that causes non-negligible different system interference to the terminal;

The base station allocates transmission resources capable of avoiding inter-system interference according to the judgment result of the interference sector, and the transmission resources capable of avoiding the inter-system interference include: the transmission resource allocated by the base station for the terminal minus the different system in the current serving sector And the transmission resources on the frequency band used on the interference sector.

In a first possible implementation manner of the first aspect, the method for the base station to obtain the interference measurement result of the different system interference received by the terminal is:

The base station sends a first interference measurement instruction to the terminal, requesting the terminal to measure the interference amount of the current serving sector and the adjacent sector;

The base station obtains the interference quantity measurement result reported by the terminal, where the interference quantity measurement result includes the current service sector, and the interference quantity measurement result of the adjacent sector. In a second possible implementation manner of the first aspect, if the base station provides services for the current serving sector and the adjacent sector of the terminal, the method for the base station to obtain the interference measurement result of the inter-system interference received by the terminal is:

The base station directly measures the current serving sector of the terminal, and the interference amount of the adjacent sector, and obtains the interference quantity measurement result.

In a third possible implementation manner of the first aspect, the interference measurement result of the base station acquiring the heterogeneous interference received by the terminal is specifically:

The base station sends a second interference measurement instruction to the terminal, and requires the terminal to measure the interference amount of the different system interference of the adjacent sector;

The base station acquires the interference quantity measurement result of the inter-system interference of the adjacent sector reported by the terminal; the base station directly measures the interference quantity of the inter-system interference of the current serving sector of the terminal, and obtains the interference quantity measurement result of the current serving sector. In the first aspect or the first and third possible implementation manners of the first aspect, the fourth possible implementation manner of the first aspect, the first interference measurement instruction or the Two The interference measurement instruction is a Radio Resource Control Protocol RRC measurement instruction. In the first aspect or the first and third possible implementation manners of the first aspect, the fifth possible implementation manner of the first aspect, the first interference measurement instruction or the The second interference measurement instruction also includes the amount of interference used by the designated terminal to measure the interference of the different system.

In the first aspect or the first, second, third or fifth possible implementation of the first aspect, a sixth possible implementation of the first aspect is also provided The interference amount may specifically be a received signal code power, a received signal strength indication, a reference signal received power, a reference signal received quality, and the like. In the first aspect or any one of the first to sixth implementation manners of the first aspect, the seventh possible implementation manner of the first aspect is further provided, The current serving sector is compared with the interference measurement result of the adjacent sector, and the interference sector is determined to be:

Calculating the difference between the current service sector interference amount measurement result and the interference quantity measurement result of the adjacent sector;

The difference is compared with the threshold. If the difference is less than the threshold, the neighboring sector corresponding to the difference is the interfering sector of the terminal.

On the other hand, an embodiment of the present invention provides a base station, which specifically includes: an acquiring unit, configured to acquire an interference quantity measurement result of a different system interference received by the terminal, where the different system interference characterizes the terminal from the current access system The interference caused by other systems, the amount of interference is a physical quantity that characterizes the intensity of the interference of the different system, and the measurement result of the interference quantity includes the measurement result of the interference of the current serving sector and the adjacent sector of the terminal; the interference sector decision unit is used for obtaining Comparing the current serving sector of the terminal acquired by the unit with the interference measurement result of the adjacent sector, and determining the interference sector, wherein the interference sector is an adjacent sector that causes non-negligible different system interference to the terminal; And an allocating unit, configured to allocate a transmission resource capable of avoiding the inter-system interference according to the judgment result of the interfering sector obtained by the interfering sector determining unit, and the transmission resource capable of avoiding the inter-system interference includes: the base station can allocate the terminal Transmission resources minus the frequency bands used by the different systems on the current serving sector and the interfering sector Transmission resources. In a first possible implementation manner of the second aspect, the acquiring unit specifically includes: a first base station sending unit, configured to send a first interference measurement instruction to the terminal, requesting the terminal to use the current serving sector and the adjacent sector The first base station receiving unit is configured to obtain the interference quantity measurement result reported by the terminal, where the interference quantity measurement result includes the current serving sector, and the interference quantity measurement result of the adjacent sector. In a second possible implementation manner of the second aspect, if the base station provides services for the current serving sector and the adjacent sector of the terminal, the base station further includes:

The first base station measurement unit is configured to directly measure the current serving sector of the terminal, and the interference amount of the adjacent sector, and obtain the interference quantity measurement result. In a third possible implementation manner of the second aspect, the acquiring unit specifically includes: a second base station sending unit, configured to send a second interference measurement instruction to the terminal, requesting the terminal to interfere with the adjacent system by the system The amount of interference is measured;

a second base station receiving unit, configured to acquire an interference quantity measurement result of the inter-system interference of the adjacent sector reported by the terminal; and a second base station measurement unit, configured to directly measure the interference quantity of the inter-system interference of the current serving sector of the terminal, and obtain The measurement of the interference amount of the current serving sector. In the second aspect or the first and third possible implementation manners of the second aspect, a fourth possible implementation manner of the second aspect is further provided, where the base station sending unit sends the first The interference measurement instruction or the second interference measurement instruction is a Radio Resource Control Protocol (RRC) measurement instruction. In the second aspect or the first and third possible implementation manners of the second aspect, a fifth possible implementation manner of the second aspect is further provided, where the base station sending unit sends the first The interference measurement instruction or the second interference measurement instruction further includes an amount of interference used when the specified terminal measures the different system interference.

In the second aspect or the first, second, third or fifth possible implementation of the second aspect, a sixth possible implementation of the second aspect is also provided The interference amount sent by the base station sending unit may specifically be a received signal code power, a received signal strength indication, a reference signal received power, a reference signal received quality, and the like. Any of the first to sixth aspects of the second aspect or the second aspect In a present manner, a seventh possible implementation manner of the second aspect is further provided, where the interference sector determining unit is configured to compare the interference measurement result of the current serving sector and the adjacent sector of the terminal, and determine Get the interference sector, specifically for:

Calculating the difference between the current service sector interference measurement result and the interference measurement result of the adjacent sector; comparing the difference with the threshold value, if the difference is less than the threshold value, the difference value is determined The adjacent sector is the interfering sector of the terminal. On the other hand, an embodiment of the present invention provides a base station, which specifically includes: an acquireer, configured to acquire an interference quantity measurement result of a different system interference received by the terminal, where the different system interference characterizes the terminal from the current access system The interference caused by other systems, the amount of interference is a physical quantity characterizing the intensity of the interference of the different system, and the measurement result of the interference quantity includes the measurement result of the interference amount of the current serving sector and the adjacent sector of the terminal; the processor is used for acquiring the acquirer Comparing the current serving sector of the terminal with the interference measurement result of the adjacent sector, and determining the interference sector, wherein the interference sector is an adjacent sector that causes non-negligible different system interference to the terminal; The result of the decision of the area is to allocate a transmission resource capable of avoiding the interference of the different system for the terminal, and the transmission resource capable of avoiding the interference of the different system includes: the transmission resource allocated by the base station for the terminal minus the difference between the current serving sector and the interference sector of the different system The transmission resource on the frequency band used.

In a first possible implementation of the third aspect, the acquirer is specifically configured to: send a first interference measurement instruction to the terminal, and request the terminal to measure the interference amount of the current serving sector and the adjacent sector; The interference quantity measurement result reported by the terminal, wherein the interference quantity measurement result includes the current serving sector, and the interference quantity measurement result of the adjacent sector.

In a second possible implementation manner of the third aspect, if the base station provides services for the current serving sector and the adjacent sector of the terminal, the acquirer is further configured to: directly measure the current serving sector of the terminal, and the neighboring The amount of interference in the sector, and the interference measurement result is obtained.

In a third possible implementation manner of the third aspect, the acquirer is further configured to: Sending a second interference measurement instruction to the terminal, requesting the terminal to measure the interference amount of the different system interference of the adjacent sector; acquiring the interference quantity measurement result of the different system interference of the adjacent sector reported by the terminal; directly measuring the current service fan of the terminal The interference amount of the inter-system interference of the area, and the interference quantity measurement result of the current serving sector is obtained.

In the third aspect or the first and third possible implementation manners of the third aspect, a fourth possible implementation manner of the third aspect is further provided, where the first interference sent by the acquirer is The measurement command or the second interference measurement instruction is a Radio Resource Control Protocol (RRC) measurement instruction.

In the third aspect or the first and third possible implementation manners of the third aspect, a fifth possible implementation manner of the third aspect is further provided, where the first interference sent by the acquirer is The measurement command or the second interference measurement instruction further includes an amount of interference used by the designated terminal to measure the inter-system interference.

In the third aspect or the first, second, third or fifth possible implementation manner of the third aspect, the sixth possible implementation manner of the third aspect is also provided The interference amount sent by the acquirer may specifically be a received signal code power, a received signal strength indication, a reference signal received power, a reference signal received quality, and the like.

In a third aspect, or any one of the first to sixth aspects of the third aspect, the seventh possible implementation of the second aspect is further provided, where the processor is used Comparing the measurement results of the current serving sector of the terminal with the adjacent sector, and determining the interference sector, specifically for: calculating the current serving sector interference amount measurement result minus the adjacent sector interference amount The difference between the measurement results; comparing the difference with the threshold value, if the difference is less than the threshold value, the adjacent sector corresponding to the difference value is the interference sector of the terminal.

Embodiments of the present invention provide a method and apparatus for inter-system interference avoidance in a reuse spectrum scheme, a interference quantity measurement result of a different system interference received by a base station, and a comparison judgment based on the interference quantity measurement result, and determining a pair The terminal causes interference that cannot be ignored by different system interference a sector, and a transmission resource capable of avoiding inter-system interference, and a transmission resource capable of avoiding inter-system interference, including: a transmission resource allocated by the base station to the terminal minus a different system in the current serving sector and interference The transmission resources on the frequency bands used on the sector, that is, the transmission resources through the interfering sectors, can be allocated to the terminal for use. Compared with the prior art, the transmission resources on all reused frequency bands are avoided in the embodiment of the present invention, which can effectively improve the accuracy of different system interference avoidance when transmitting resources on the reused spectrum, thereby improving spectrum use efficiency.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

FIG. 1 is a flowchart of a method for avoiding interference of a different system in a reuse spectrum scheme according to an embodiment of the present invention;

2a is a schematic diagram of a terminal location in a TD-SCDMA and LTE reuse spectrum solution according to an embodiment of the present invention;

2b is a schematic diagram of spectrum division in a TD-SCDMA and LTE reuse spectrum solution according to an embodiment of the present invention;

2c is a flowchart of a method for avoiding interference of a different system in a TD-SCDMA and LTE reuse spectrum solution according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a transmission resource allocation manner of a different system in a TD-SCDMA and LTE reuse spectrum scheme according to an embodiment of the present invention;

FIG. 3a is a schematic diagram of a terminal position in a GSM and WCDMA reuse spectrum solution according to an embodiment of the present invention; FIG.

FIG. 3b is a schematic diagram of frequency spectrum division in a GSM and WCDMA reuse spectrum scheme according to an embodiment of the present invention; FIG.

FIG. 3c is a flowchart of a method for avoiding interference of a different system in a GSM and WCDMA reuse spectrum scheme according to an embodiment of the present invention;

FIG. 3 is a different GSM and WCDMA reuse spectrum scheme according to an embodiment of the present invention; Schematic diagram of the transmission resource allocation mode of system interference avoidance;

4a is a schematic diagram of a different system interference avoiding base station in a reuse spectrum scheme according to an embodiment of the present invention;

FIG. 4b is a schematic structural diagram of an acquirer of a different system interference avoidance base station in a reuse spectrum scheme according to an embodiment of the present disclosure;

4c is a schematic structural diagram of an acquirer of a different system interference avoidance base station in another reuse spectrum scheme according to an embodiment of the present invention;

4d is a schematic structural diagram of an acquirer of a different system interference avoidance base station in another reuse spectrum scheme according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of another system interference avoiding base station in another reuse spectrum scheme according to an embodiment of the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. The embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention. Embodiment 1 In the scenario of reusing spectrum resources, the embodiment of the present invention provides a method for avoiding interference of different systems in a reuse spectrum scheme. As shown in FIG. 1 , the specific implementation process is as follows:

101: The base station acquires the interference quantity measurement result of the different system interference received by the terminal, wherein the different system interference characterizes the interference caused by the terminal system other than the current access system, and the interference quantity is a physical quantity that represents the interference intensity of the different system, and the interference The measurement results include the interference measurement results of the current serving sector and adjacent sectors of the terminal; the communication systems of different standards may generate different system interference when reusing spectrum resources, such as Global System for Mobile Communications (Global System for Mobile Communications, GSM), Wideband Code-Division Multiple Access (WCDMA), Time-Division Synchronous Code-Division Multiple Access (Time-Division Synchronous Code-Division Multiple Access, TD-SCDMA), Worldwide Interoperability for Microwave Access (WiMax), Long Term Evolution (LTE), etc. When two or more communication systems coexist and reuse spectrum, they are mutually different systems. As in the GSM system and the LTE system, the GSM system is a different system for the LTE system, and the LTE system is a different system for the GSM system. The amount of interference is a physical quantity that characterizes the strength of the inter-system interference, and may specifically refer to, for example, Received Signal Code Power (RSCP), Received Signal Strength Indication (RSI), etc. in a WCDMA system, or Reference Signal Receiving Power (RSRP), Reference Signal Received Quality (RSRQ), etc. in the system.

The method for the base station to obtain the interference measurement result of the inter-system interference received by the terminal may be: The base station sends a first interference measurement command to the terminal that needs to evade the inter-system interference, and the terminal is required to measure the interference amount of the current access system. After receiving the first interference measurement command sent by the base station, the terminal may start measurement immediately or after a certain time interval, and obtain the interference quantity measurement result of the current serving sector and the adjacent sector. After the terminal completes the measurement, the measurement result is reported to the base station, and the base station can obtain the interference measurement result of the terminal. The method for the base station to obtain the interference measurement result of the inter-system interference received by the terminal may also be: if the current serving sector and the neighboring sector of the terminal provide services for the same base station, the base station directly measures the current serving sector and the neighbor to which the terminal belongs. The interference amount of the sector, for example, the cell covered by the base station is divided into three sectors, that is, sector 0, sector 1 and sector 2, each sector covers a range of 120 degrees, and the current monthly service sector of the terminal For sector 0, the adjacent sectors are sector 1 and sector 2. The base station can directly measure the interference measurement results on the three sectors. The method for the base station to obtain the interference measurement result of the inter-system interference received by the terminal may also be: The base station may obtain the interference measurement result by using a combination of the terminal measurement report and the base station direct measurement. If the base station directly measures the interference quantity of the current serving sector of the terminal, the base station also sends a second interference measurement instruction to the terminal, and the terminal is required to measure the interference quantity of the adjacent sector, and then the base station can obtain the current service of the terminal. Interference measurement results for sectors and adjacent sectors.

102: The base station compares, by the base station, the interference measurement result of the current serving sector of the terminal and the adjacent sector, and determines that the interference sector is obtained, where the interference sector is an adjacent sector that causes non-negligible different system interference to the terminal; For two systems that reuse spectrum resources, such as the GSM system and the LTE system, the LTE base station specifies RSRP as the interference amount, and the RSRP characterizes the reference signal received power, which can be used to measure the channel quality of the LTE system. Since the GSM system and the LTE system reuse the spectrum and use the same frequency band, the channel quality of the two systems is similar to the same terminal, and the channel quality of the LTE system obtained by the RSRP evaluation can also reflect the channel quality of the GSM system in the same frequency band. The interference amount of sector 0 and sector 1 measured by the LTE terminal is RSRP0 and RSRP1, respectively. If the measured RSRPO and RSRP1 are relatively close, it can be determined that the terminal is located at the sector boundary, and the GSM signal interference level received by the terminal from sector 0 and sector 1 is equivalent. On the other hand, if the measured difference between RSRPO and RSRP1 exceeds a certain limit, the threshold value may be set in the specific implementation process. When the difference is less than the set threshold, the GSM signal in the adjacent sector 1 is caused to the terminal. The interference is much smaller than the interference caused by the GSM signal in the current serving sector 0, and the interference caused by the GSM signal in sector 1 can be ignored. In summary, the inter-system signal in the current serving sector of the terminal causes interference to the terminal, and can be used as a reference to compare the interference strength of the adjacent sector with the interference strength of the current serving sector, thereby evaluating the different systems in the adjacent sector. The intensity of the interference caused by the signal to the terminal. The method for the interfering sector decision by the base station may be: the interference quantity measurement result obtained by the base station, and the interference quantity including the sector 0 may be recorded as MSI0, and the dry 4 of the n adjacent sectors, which may be recorded as MSI1 in sequence. , MSI2... MSIn, where n is a positive integer.

The base station calculates MSI0 minus MSI1, MSI2, ... MSIn difference is δ MSI1, δ MSI2 ... δ MSIn, and δ MSI1, δ MSI2 ... δ MSIn and The threshold value is compared; if S MSIi (lin, i is a positive integer) is compared with the threshold value, if 5 MSK is less than the threshold value, it is determined that the i-th adjacent sector is not the interference fan of the terminal. If the 5 MSK is less than the threshold, the i-th adjacent sector is determined to be the interference sector of the terminal;

103: The base station allocates, according to the judgment result of the interference sector, a transmission resource that can avoid the inter-system interference, where the transmission resource capable of avoiding the inter-system interference includes: the transmission resource allocated by the base station to the terminal minus the different system at the current Transmission resources on the frequency bands used on the serving sector and the interfering sector.

The method for the base station to allocate resources for the terminal may be: using the frequency band fO of the different system in the current serving sector of the terminal, causing different system interference to the terminal, In order to avoid this interference, the base station cannot allocate the transmission resources at the f0 band in the current system to the terminal; the adjacent sectors of the terminal, the sector 1 is the interference sector, and the different system in the sector 1 uses the frequency band fl, which will cause the terminal In order to avoid this interference, the base station cannot allocate the transmission resources at the fl band in the current system to the terminal; the adjacent sectors of the terminal, the sector 2 is not the interference sector, and the frequency band is used by the system in sector 2, The interference caused by the terminal can be neglected, and the base station can allocate the transmission resources at the frequency band in the current system to the terminal.

The method for avoiding the interference of the different system in the reused spectrum scheme provided by the embodiment does not need to avoid the transmission resources on all reused frequency bands, and effectively utilizes the neighboring sectors of the different systems that are not determined to be interference sectors. The transmission resources in the used frequency band improve the frequency usage efficiency while avoiding the interference of different systems.

Embodiment 2 In a scenario of reusing spectrum resources, an embodiment of the present invention provides a method for avoiding interference of different systems in a reuse spectrum scheme. The scenario set in this embodiment is that the TD-SCDMA system and the LTE system reuse spectrum resources, the current serving sector of the terminal is sector 0, and the terminal is located at the junction of three sectors, which may be subject to strong inter-system interference, terminal location. As shown in Figure 2a. The terminal accesses the LTE system and is subject to different system interference caused by the TD-SCDMA system. The total bandwidth of the TD-SCDMA system is 5 MHz, and the frequency band of 1880 MHz~l 885 MHz is used, and the bandwidth per sector is 1.6 MHz, wherein the TD-SCDMA system is Sector 0 uses the frequency band 1880.l~1881.7MHz, the sector 1 uses the frequency band 1881.7~1883.3MHz, the sector 2 uses the frequency band 1883.3~1884.9MHz; the LTE system has the total bandwidth of 10MHz, uses the 1880~1890MHz frequency band, The frequency network mode covers the above three sectors. The frequency band that the LTE system can use for data transmission in each sector is 1880.5~1889.5MHz. The frequency band is divided as shown in Figure 2b. In this scenario, but not limited to such a scenario, the base station can perform neighbor interference decision and perform reasonable resource allocation to avoid inter-system interference according to the method of inter-system interference avoidance in the reuse spectrum scheme as shown in FIG. 2c. The specific implementation process is as follows: The optional step of the base station acquiring the interference measurement result is the steps 201 to 203, as follows: 201: The base station sends a first interference measurement instruction to the terminal, and requires the terminal to measure the RSRP; the first interference measurement The command can be, but not limited to, the Radio Resource Control Protocol (Radio Resource). Control, RRC) measurement instruction, since the RRC measurement instruction is an existing instruction of the communication system, and the RRC measurement instruction is used as the first interference measurement instruction, the modification to the existing system can be reduced, and the implementation of the solution of the embodiment of the present invention is facilitated. The eNB sends the RRC measurement command to the terminal. Optionally, the RRC measurement command specifies that the terminal uses the RSRP as the interference quantity to measure. However, other physical quantities may be specified as the interference quantity in the specific implementation process. RSRP is the physical quantity for channel quality assessment of the LTE system. The terminal accesses the LTE system and cannot directly measure the signal strength of the TD-SCDMA system of the current serving sector and the adjacent sector of the terminal. In order to evaluate the TD-SCDMA signal, the terminal is caused. The different system interference can measure the RSRP of the LTE system as the physical quantity for evaluating the signal strength of the TD-SCDMA. 202: The terminal receives the first interference measurement instruction sent by the base station, and measures the RSRP to obtain the measurement result.

The terminal receives the first interference measurement command sent by the base station, and starts measuring the RSRP of the LTE system in sector 0, sector 1 and sector 2. The terminal measures the RSRP of sector 0, sector 1 and sector 2, and the interference amounts of sector 0, sector 1 and sector 2 are respectively recorded as RSRP0, RSRP1 and RSRP2.

203: The terminal reports the interference quantity measurement result to the base station; after the terminal completes the measurement, the terminal quantity measurement result RSRP0, RSRP1, and RSRP2 may be reported to the base station through the but not limited to the RRC measurement report message at time T or according to the setting of the system. Therefore, the base station obtains the interference quantity measurement result, where the T time, which can be, but is not limited to, the system parameter, is used as the time for the terminal to report the measurement result, and the value can be, but is not limited to, the system requirements for delay, synchronization, and the like. Reasonable settings.

Another optional step for the base station to obtain the interference measurement result is step 204, which is as follows:

204: The base station directly measures the RSRP to obtain the interference measurement result.

In this embodiment, the current serving sector and the adjacent sector of the terminal provide services for the same base station, and the base station may directly measure the RSRP of the current serving sector and the adjacent sector of the terminal to obtain the interference measurement result. The measurement result of the interference amount of the current serving sector 0 measured by the base station can be recorded as RSRP0, and the measurement results of the interference amount of the adjacent sector 1 and the adjacent sector 2 can be recorded as RSRP1 and RSRP2, respectively. Another optional step for the base station to obtain the interference measurement result is steps 205 to 208, specifically as Next:

205: The base station sends a second interference measurement instruction to the terminal, requesting the terminal to measure the neighboring sector RSRP. The base station sends an RRC measurement instruction to the terminal, and specifies, in the RRC measurement instruction, the terminal to use RSRP as the interference quantity for measurement, optionally In this embodiment, the terminal is required to measure the RSRP of the adjacent sectors, that is, the sector 1 and the sector 2, but in the specific implementation process, the terminal may be specified to measure other sectors.

206: The terminal receives the second interference measurement instruction sent by the base station, measures the RSRP of the adjacent sector, and obtains the measurement result.

Receiving, by the terminal, a second interference measurement instruction sent by the base station, and starting to be in sector 1 and sector 2

The RSRP of the LTE system is measured.

The terminal measures the RSRP of sector 1 and sector 2, and the interference amounts obtained for sector 1 and sector 2 can be recorded as RSRP1 and RSRP2, respectively.

207: The terminal reports the interference quantity measurement result of the adjacent sector to the base station; after the terminal completes the measurement, the interference quantity measurement result RSRP1 and RSRP2 may pass, but not limited to, the RRC measurement report message at time T according to the setting of the system. The report is reported to the base station, so that the base station acquires the interference measurement result of the adjacent sector of the terminal.

208: The base station directly measures the RSRP of the current serving sector of the terminal, and obtains the interference quantity measurement result.

The base station directly measures the RSRP of the current serving sector of the terminal, and proceeds to step 205 through

208. The base station acquires an interference quantity measurement result of the current serving sector and the adjacent sector of the terminal. In the method for obtaining the interference amount measurement results by the three optional base stations given in steps 201 to 208, one of the methods may be selected for implementation.

209: The base station separately calculates RSRP0 minus the difference between RSRP1 and RSRP2 as δ RSRP1 and 6 RSRP2, and compares δ RSRP 1 and δ RSRP1 with a threshold value, and determines an interference fan region;

After the base station acquires the interference measurement results RSRP0, RSRP1, and RSRP2, it calculates RSRP0 respectively. The difference between RSRP1 and RSRP2 is subtracted and can be recorded as δ RSRP1 and δ RSRP2. In this embodiment, the use of the system parameters, but not limited to the system parameters, may be used to indicate that TH is a threshold value, and the value may be, but is not limited to, a reasonable setting according to indicators such as the robustness of the system against interference. Comparing δ RSRP1 and RSRP1 with the threshold value , respectively, it is found that δ RSRP1 is less than ΤΗ, and δ RSRP2 is less than ΤΗ, indicating that the LTE signal strengths of sector 0, sector 1 and sector 2 are equivalent, so that the terminal can be obtained. At the junction of sector 0, sector 1 and sector 2, sector 1 and sector 2 are interfering sectors.

210: The base station allocates, according to the judgment result of the interference sector, the transmission resource capable of avoiding the interference of the different system.

The TD-SCDMA signals from sector 0, sector 1 and sector 2 cause non-negligible interference to the LTE signal of the terminal, and the base station needs to avoid the spectrum used by the TD-SCDMA in these three sectors when performing resource allocation. The transmission resource, the spectrum usage mode is shown in Figure 2d. The specific operation method is as follows: The frequency band available for data transmission in LTE is 1880.5MHz~1889.5MHz. Due to interference from TD-SCDMA signals, 3 fans need to be avoided. The TD-SCDMA frequency band of the area is 1880.5~1884.9MHz. It is determined that the data transmission of the terminal at 1884.9~1889.5MHz will not be interfered by the TD-SCDMA signal. The base station should allocate the transmission resources in this frequency band for the LTE uplink and downlink of the terminal. data transmission.

This embodiment provides three methods for obtaining interference measurement results. In a specific application, the configuration may be flexibly configured according to specific application scenarios. In the TD-SCDMA system and the LTE system reuse spectrum scheme, the position of the terminal is judged to be subject to non-negligible different system interference from the current serving sector and multiple sectors, and in order to reduce interference, accurate judgment is interfered by different systems. The transmission resources ensure the normal operation of the communication. Example 3

In the scenario of reusing spectrum resources, the embodiments of the present invention provide a method for avoiding interference of different systems in a reuse spectrum scheme. The scenario set in this embodiment is that the GSM system and the WCDMA system reuse spectrum resources, the terminal is located near the boundary between the sector 0 and the sector 1, the sector 0 is the current serving sector of the terminal, and the sector 1 is the adjacent sector. The terminal is far from the adjacent sector 2, and the terminal position is as shown in Fig. 3a. The terminal accesses the WCDMA system and is subject to interference from the GSM system. The downlink frequency band used by the WCDMA system on sector 0 is 1940~1945MHz. The GSM system is The downlink frequency band used on sector 0 is 1940~1941MHz, the downlink frequency band used by sector GSM in GSM system is 1942~1943MHz, and the downlink frequency band used in sector 2 is 1944-1945MHz. The frequency band is divided as shown in Figure 3b. Shown. In such a scenario, but not limited to such a scenario, the base station can be enabled according to the method of different system interference avoidance in the reused spectrum scheme as shown in FIG. 3c:

The step of the base station obtaining the interference quantity measurement result may be the steps 301 to 303, as follows:

301: The base station sends a first interference measurement command to the terminal, and the terminal is required to perform measurement on the RSCP. The first interference measurement command may be, but not limited to, an RRC measurement command, and the base station sends an RRC measurement command to the terminal. Optionally, the embodiment is in the RRC. The specified terminal in the measurement command uses RSCP as the interference amount to measure, but other physical quantities can be specified as the interference amount in the specific implementation process. RSCP is the physical quantity for channel quality assessment of WCDMA. The terminal accesses the WCDMA system and cannot directly measure the signal strength of the GSM system of the current serving sector and the adjacent sector of the terminal. In order to evaluate the inter-system interference caused by the GSM signal to the terminal, The RSCP of the WCDMA system can be measured as a physical quantity for evaluating the strength of the GSM signal.

302: The terminal receives the first interference measurement instruction sent by the base station, and measures the RSCP to obtain the measurement result.

The terminal receives the first interference measurement command sent by the base station, and starts measuring the RSCP of the WCDMA system in sector 0, sector 1 and sector 2. The terminal measures the RSCP of sector 0, sector 1 and sector 2, and obtains sector 0, sector 1 and sector.

The amount of interference of 2 can be recorded as RSCP0, RSCP1 and RSCP2, respectively.

303: The terminal reports the interference measurement result to the base station. After the terminal completes the measurement, the terminal can report the interference measurement result RSCP0, RSCP1, and RSCP2 at the time T, but not limited to the RRC measurement report message to the base station, immediately or according to the setting of the system. Therefore, the base station obtains the interference quantity measurement result, where the T time, which can be, but is not limited to, the system parameter, is used as the time for the terminal to report the measurement result, and the value can be, but is not limited to, the system requirements for delay, synchronization, and the like. Reasonable settings.

According to the scenario setting of the embodiment, in the downlink frequency band of the GSM system and the WCDMA system, the base station cannot directly measure the interference amount, so the method for the base station to obtain the interference quantity measurement result may be To measure through the terminal and go up. In addition, in the specific implementation process, when the scenario of reusing the spectrum by the GSM system and the WCDMA system is that the two systems reuse the uplink frequency band, the method for the base station to obtain the interference quantity measurement result may directly measure the interference amount for the base station.

304: The base station calculates RSCP0 minus the difference between RSCP1 and RSCP2 as δ RSCP1 and 6 RSCP2, and compares 5 RSCP1 and δ RSCP1 with the threshold value to determine the interference fan zone;

After the base station acquires the interference measurement results RSCP0, RSCP1 and RSCP2, the difference between RSCP0 and RSCP1 and RSCP2 is calculated as δ RSCP1 and δ RSCP2. In this embodiment, the use of the system parameters, but not limited to the system parameters, may be used to indicate that TH is a threshold value, and the value may be, but is not limited to, a reasonable setting according to indicators such as the robustness of the system against interference.

Comparing δ RSCP1 with the threshold value ,, it is found that δ RSCP1 is less than ΤΗ, indicating that the WCDMA signal strength from sector 0 and from sector 1 is equivalent, so that the terminal is at the junction of sector 0 and sector 1. Therefore, it is determined that the adjacent sector 1 is a sector that causes different system interference to the terminal;

Comparing δ RSCP2 with the threshold ΤΗ, it is found that δ RSCP2 is less than ΤΗ, which means that the WCDMA signal strength from sector 2 is much smaller than the WCDMA signal from sector 0, indicating that the terminal is affected by the GSM signal from sector 2. System interference is limited and can be ignored. Sector 2 is not a sector that causes different system interference to the terminal.

The result of the decision is that the GSM signal from sector 1 causes non-negligible inter-system interference to the terminal's WCDMA signal, so sector 1 is the interfering sector; the GSM signal from sector 2 causes different system interference to the terminal's WCDMA signal. Ignore, sector 2 is a non-interfering sector.

305: The base station allocates, according to the judgment result of the interference sector, the transmission resource capable of avoiding the interference of the different system.

The GSM signal from sector 0 and sector 1 will cause interference to the WCDMA signal of the terminal. When the base station performs resource allocation, it needs to avoid the transmission resources on the spectrum used by the GSM system on the three sectors. As shown in Figure 3d, the specific operation method is as follows: The frequency band that can be used for data transmission in the WCDMA system is 1940~1945MHz. Due to interference from the GSM signal, it is necessary to avoid the frequency band used by the GSM system on sector 0 and sector 1. It is 1940~1941MHz and 1942~1943MHz respectively, and it is not necessary to avoid the frequency band used by sector 2 in the GSM system. 1944-1945MHz, thus determining that the terminal can transmit data in the frequency bands 1941~1942MHz and 1943~1945MHz, the base station should allocate the transmission resources in this frequency band for the downlink data transmission of the WCDMA system of the terminal.

In this embodiment, the terminal location of the WCDMA system may be interfered by the GSM signal from the current serving sector and two adjacent sectors, and the base station determines that the interference of the GSM signal of the sector 2 to the terminal is negligible, and the terminal may use the sector. 2 The reuse spectrum of the GSM system and the WCDMA system performs data transmission without circumvention. Compared with the transmission resources on all reused frequency bands in the prior art, the solution provided in this embodiment effectively improves the accuracy of the interference avoidance of different systems when transmitting resources on the reused spectrum, thereby improving the efficiency of frequency usage.

Embodiment 4 In the scenario of reusing spectrum resources, the embodiment of the present invention provides a base station 40, which is used for reusing the different system interference avoidance in the spectrum scheme, as shown in FIG. 4a, and specifically includes the following:

401. The acquiring unit is configured to obtain an interference quantity measurement result of the inter-system interference received by the terminal, where the inter-system interference characterizes interference caused by the system other than the current access system, and the interference quantity is a characteristic different system interference intensity. The physical quantity, the interference quantity measurement result includes the interference quantity measurement result of the current serving sector and the adjacent sector of the terminal;

402. The interference sector determining unit is configured to compare, by using an interference quantity measurement result of a current serving sector and a neighboring sector of the terminal acquired by the acquiring unit, and determine to obtain an interference sector, where the interference sector is The terminal causes adjacent sectors that are not negligible by different system interference;

403. The resource allocation unit is configured to allocate, according to a judgment result of the interference sector obtained by the interference sector determining unit, a transmission resource that can avoid the inter-system interference, where the transmission resource capable of avoiding the inter-system interference includes: The transmission resources allocated for the terminal are subtracted from the transmission resources on the frequency bands used by the different system in the current serving sector and the interfering sector. As a specific description of the base station shown in FIG. 4, an optional solution of the 401 acquiring unit may be as shown in FIG. 4b, and specifically includes:

4011: The first base station sending unit is configured to send a first interference measurement instruction to the terminal, requesting the terminal to measure the interference amount of the current serving sector and the adjacent sector; and the first interference measurement instruction sent by the base station sending unit may but not Limited to the RRC measurement command of the RRC, the first interference measurement instruction may further include: The physical quantity used in the measurement, wherein the physical quantity may specifically but not limited to the received signal code power, the received signal strength indication, the reference signal received power, the reference signal received quality, and the like.

4012: The first base station receiving unit is configured to obtain an interference quantity measurement result reported by the terminal, where the interference quantity measurement result includes a current serving sector, and an interference quantity measurement result of the adjacent sector.

As a specific description of the base station shown in FIG. 4, another alternative of the 401 acquiring unit may be as shown in FIG. 4c, specifically including:

4013: The first base station measurement unit is configured to directly measure a current serving sector of the terminal, and an interference quantity of the adjacent sector, to obtain an interference quantity measurement result.

As a specific description of the base station shown in FIG. 4, another alternative of the 401 acquiring unit may be as shown in FIG. 4d, and specifically includes:

4014: The second base station sending unit is configured to send a second interference measurement instruction to the terminal, and request the terminal to measure the interference amount of the different system received by the adjacent system;

The second interference measurement command sent by the base station sending unit may be, but not limited to, a RRC measurement command, and the second interference measurement command may further include a physical quantity used by the specified terminal to measure the inter-system interference, where the physical quantity may specifically It is not limited to the received signal code power, the received signal strength indication, the reference signal received power, the reference signal reception quality, and the like.

4015: The second base station receiving unit is configured to obtain an interference quantity measurement result of the inter-system interference of the adjacent sector reported by the terminal;

4016: The second base station measurement unit is configured to directly measure the interference amount of the inter-system interference of the current serving sector received by the terminal, and obtain the interference quantity measurement result.

Optionally, the 402 interference sector determining unit is specifically configured to: separately calculate a difference between the current serving sector interference amount measurement result and the interference quantity measurement result of the adjacent sector;

The difference is compared with the threshold. If the difference is less than the threshold, the neighboring sector corresponding to the difference is the interfering sector of the terminal. Example 5

In a scenario of reusing spectrum resources, an embodiment of the present invention provides a base station 50 for reuse Different system interference avoidance in the spectrum scheme, as shown in Figure 5, specifically includes the following:

501: an acquirer, configured to acquire interference measurement results of different system interference received by the terminal, where the different system interference characterizes interference caused by the system from the other systems outside the current access system, where the interference amount is a physical quantity that characterizes an inter-system interference strength, the interference quantity measurement result including a interference quantity measurement result of a current serving sector and an adjacent sector of the terminal;

502. The processor is configured to compare, by using an acquisition unit, an interference quantity measurement result of a current serving sector of the terminal and an adjacent sector, and determine, to obtain an interference sector, where the interference sector is the terminal a sector that causes non-negligible inter-system interference; and, according to the obtained decision result of the interfering sector, allocates, to the terminal, a transmission resource capable of avoiding inter-system interference, and the transmission resource capable of avoiding inter-system interference The method includes: the transmission resource allocated by the base station to the terminal minus the transmission resource on the frequency band used by the different system in the current serving sector and the interference sector.

As a specific description of the base station shown in FIG. 5, the 501 acquirer may be configured to: send a first interference measurement instruction to the terminal, requesting the terminal to measure the interference amount of the current serving sector and the adjacent sector, where the base station sending unit The first interference measurement instruction that is sent may be, but is not limited to, a RRC measurement command, and the first interference measurement instruction may further include an interference quantity used by the specified terminal to measure the inter-system interference, where the interference quantity may specifically but not Limited to receiving signal code power, receiving signal strength indication, reference signal receiving power, reference signal receiving quality, etc.;

Obtaining the interference quantity measurement result reported by the terminal, wherein the interference quantity measurement result includes the interference quantity of the current service sector, and the interference quantity of the adjacent sector. As a specific description of the base station shown in FIG. 5, the 501 acquirer can also be used to: directly measure the current serving sector of the terminal, and the interference amount of the adjacent sector, and obtain the interference quantity measurement result.

As a specific description of the base station shown in FIG. 5, the 501 acquirer may be further configured to: send a second interference measurement instruction to the terminal, requesting the terminal to measure the interference amount of the different system interference of the adjacent sector, and the base station sends The second interference measurement instruction sent by the unit may be, but is not limited to, a RRC measurement command, and the second interference measurement instruction may further include an interference quantity used by the specified terminal to measure the inter-system interference, where the interference quantity may specifically Not limited to receiving signal code power, received signal strength indication, reference signal received power, reference signal reception Quality, etc.

Acquire the interference quantity measurement result of the different system interference of the adjacent sector reported by the terminal; directly measure the interference quantity of the different system interference of the current serving sector received by the terminal, and obtain the interference quantity measurement result. Optionally, the method for determining, by the 502 processor, the interference sector may be: calculating, respectively, a difference between the current serving sector interference quantity measurement result and the interference quantity measurement result of the adjacent sector; and the difference value and the threshold value. For comparison, if the difference is less than the threshold, the adjacent sector corresponding to the decision difference is the interference sector of the terminal.

Embodiments of the present invention provide a method and apparatus for inter-system interference avoidance in a reuse spectrum scheme, a interference quantity measurement result of a different system interference received by a base station, and a comparison judgment based on the interference quantity measurement result, and determining a pair The terminal causes a non-negligible interference channel of the inter-system interference, and allocates a transmission resource capable of avoiding the inter-system interference, and the transmission resource capable of avoiding the inter-system interference includes: the transmission resource that the base station can allocate for the terminal The transmission resources on the frequency bands used by the de-isolated system on the current serving sector and the interfering sector, that is, the transmission resources through the interfering sectors can be allocated to the terminal for use. Compared with the prior art, the transmission resources on all reused frequency bands are avoided in the embodiment of the present invention, which can effectively improve the accuracy of the interference avoidance of different systems when transmitting resources on the reused spectrum, thereby improving the spectrum use efficiency. From the above description of the embodiments, it will be apparent to those skilled in the art that the present invention can be implemented by means of software plus necessary general hardware. Based on such understanding, all or part of the steps in the technical solution of the present invention may be completed by a program instructing related hardware, and the program may be stored in a computer readable storage medium, when executed, The steps include the steps of the foregoing method embodiments, such as a ROM/RAM, a magnetic disk, an optical disk, and the like.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can lightly within the technical scope disclosed by the present invention. Variations or substitutions are conceivable and should be covered by the scope of the invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

1. A method for avoiding inter-system interference in a spectrum reuse scheme, characterized in that: the base station obtains the interference amount measurement result of the inter-system interference suffered by the terminal, and the inter-system interference represents the inter-system interference received by the terminal from the current access system. Interference caused by other systems, the interference amount is a physical quantity that represents the intensity of interference from different systems, and the interference amount measurement results include the interference amount measurement results of the terminal's current serving sector and adjacent sectors; The interference measurement results of the current serving sector and the adjacent sectors are compared with the adjacent sectors; the base station allocates the interference to the terminal according to the judgment result of the interference sector, which can avoid interference from different systems. The transmission resources that can avoid interference from different systems include: the transmission resources that the base station can allocate to the terminal minus the transmission resources in the frequency band used by the different system in the current serving sector and interference sector.

2. The method according to claim 1, characterized in that, the base station obtains the interference amount measurement result of the inter-system interference suffered by the terminal by: the base station sends a first interference measurement instruction to the terminal, requiring the The terminal measures the interference amount of the current serving sector and adjacent sectors; the base station obtains the interference amount measurement results reported by the terminal, and the interference amount measurement results include the current serving sector and the interference of adjacent sectors. Quantitative measurement results.

3. The method according to claim 1, characterized in that, if the base station provides services for the current serving sector and adjacent sectors of the terminal, the base station obtains the interference amount measurement of the inter-system interference suffered by the terminal. The result method is: the base station directly measures the interference amount of the terminal's current serving sector and adjacent sectors, and obtains the interference amount measurement result.

4. The method according to claim 1, characterized in that, the base station obtains the interference amount measurement result of the inter-system interference suffered by the terminal by: the base station sends a second interference measurement instruction to the terminal, requiring the The difference between the terminal and adjacent sectors Measure the interference amount of system interference; the base station obtains the measurement results of the interference amount of inter-system interference in adjacent sectors reported by the terminal; the base station directly measures the interference amount of inter-system interference in the current serving sector of the terminal, and obtains the current serving sector interference measurement results.

5. The method according to claim 2 or 4, characterized in that the first interference measurement instruction or the second interference measurement instruction is a radio resource control protocol RRC measurement instruction.

6. The method according to claim 2 or 4, characterized in that the first interference measurement instruction or the second interference measurement instruction further includes specifying an interference amount used by the terminal when measuring the different system interference. .

7. The method according to claim 3 or 6, characterized in that the interference amount can specifically be received signal code power, received signal strength indication, reference signal received power, reference signal reception quality, etc.

8. The method according to any one of claims 1 to 7, characterized in that the base station compares the interference amount measurement results of the terminal's current serving sector and adjacent sectors, and determines the interference. Specifically, the sectors are: Calculate the difference between the interference measurement result of the current serving sector and the interference measurement result of the adjacent sector respectively; Compare the difference with the threshold value. If the difference is less than the threshold value, it is true. , then it is determined that the adjacent sector corresponding to the difference is the interference sector of the terminal.

9. A base station, characterized in that, the base station includes: an acquisition unit, used to obtain the measurement results of the interference amount of different system interference received by the terminal, where the different system interference represents the interference received by the terminal from the current access system. Interference caused by other systems, the interference amount is a physical quantity that represents the intensity of interference from different systems, and the interference amount measurement results include the interference amount measurement results of the terminal's current serving sector and adjacent sectors;

Compare the interference amount measurement results of the area and adjacent sectors, and determine to obtain the interference sector, which is an adjacent sector that causes non-negligible inter-system interference to the terminal; a resource allocation unit, used for According to the interference sector determination unit obtained by the interference sector decision unit As a result of the judgment, the terminal is allocated transmission resources that can avoid interference from different systems. The transmission resources that can avoid interference from different systems include: the transmission resources that the base station can allocate to the terminal minus the current serving sector of the different system. and transmission resources on the frequency band used in the interfering sector.

10. The base station according to claim 9, characterized in that the acquisition unit specifically includes: a first base station sending unit, configured to send a first interference measurement instruction to the terminal, requiring the terminal to measure the current serving sector and measure the interference amount of adjacent sectors; the first base station receiving unit is used to obtain the interference amount measurement results reported by the terminal, where the interference amount measurement results include the current serving sector and the interference amount of adjacent sectors. Interference measurement results.

11. The base station according to claim 9, characterized in that, if the base station provides services for the current serving sector and adjacent sectors of the terminal, the base station further includes:

The first base station measurement unit is used to directly measure the interference amount of the terminal's current serving sector and adjacent sectors, and obtain the interference amount measurement results.

12. The base station according to claim 9, characterized in that the acquisition unit specifically includes: a second base station sending unit, configured to send a second interference measurement instruction to the terminal, requiring the terminal to measure adjacent sectors Measure the amount of interference from different systems;

The second base station receiving unit is used to obtain the interference amount measurement results of inter-system interference in adjacent sectors reported by the terminal;

The second base station measurement unit is used to directly measure the interference amount of the inter-system interference in the current serving sector of the terminal, and obtain the interference amount measurement result of the current serving sector.

13. The base station according to claim 10 or 12, characterized in that the first interference measurement instruction or the second interference measurement instruction sent by the base station sending unit is a radio resource control protocol RRC measurement instruction.

14. The base station according to claim 10 or 12, characterized in that, the first interference measurement instruction or the second interference measurement instruction sent by the base station sending unit further includes specifying the terminal to perform interference measurement on the different system. The amount of interference used in the measurement.

15. The base station according to claim 11 or 14, wherein the interference amount sent by the base station transmitting unit can specifically be received signal code power, received signal strength indication, reference signal received power, and reference signal received quality. wait.

16. The base station according to any one of claims 9 to 15, characterized in that the interference sector decision unit is configured to measure the interference amount between the current serving sector and adjacent sectors of the terminal. Compare and determine the interference sector, specifically for: respectively calculating the difference between the interference measurement result of the current serving sector minus the interference measurement result of the adjacent sector; comparing the difference with the threshold value, If the difference is smaller than the threshold value, it is determined that the adjacent sector corresponding to the difference is the interference sector of the terminal.

17. A base station, characterized in that, the base station includes: an acquirer, used to obtain interference amount measurement results of inter-system interference received by a terminal, where the inter-system interference represents interference received by the terminal from the current access system. Interference caused by other systems, the interference amount is a physical quantity that represents the intensity of interference from different systems, and the interference amount measurement results include the interference amount measurement results of the terminal's current serving sector and adjacent sectors;

A processor, configured to compare the interference measurement results of the current serving sector of the terminal and adjacent sectors obtained by the acquirer, and determine to obtain the interference sector, where the interference sector is a target for the terminal Adjacent sectors that cause non-negligible inter-system interference; and based on the judgment results of the interfering sectors, allocate transmission resources that can avoid inter-system interference to the terminal, and the transmission resources that can avoid inter-system interference It includes: subtracting the transmission resources on the frequency band used by the different system in the current serving sector and interference sector from the transmission resources that the base station can allocate to the terminal.

18. The base station according to claim 17, wherein the acquirer is specifically configured to: send a first interference measurement instruction to the terminal, requiring the terminal to interfere with the current serving sector and adjacent sectors. measure;

Obtain the interference measurement results reported by the terminal, and the interference measurement results include the interference measurement results of the current serving sector and adjacent sectors.

19. The base station according to claim 17, characterized in that, if the base station provides services for the current serving sector and adjacent sectors of the terminal, the obtainer is also used to: directly measure the current serving sector of the terminal. Serving sector, as well as the interference amount of adjacent sectors, obtain interference measurement results.

20. The base station according to claim 17, characterized in that the acquirer is further configured to: send a second interference measurement instruction to the terminal, requiring the terminal to interfere with the amount of inter-system interference in adjacent sectors. take measurements;

Obtain the interference amount measurement results of inter-system interference in adjacent sectors reported by the terminal;

Directly measure the interference amount of inter-system interference in the current serving sector of the terminal, and obtain the interference amount measurement result of the current serving sector.

21. The base station according to claim 18 or 20, characterized in that the first interference measurement instruction or the second interference measurement instruction sent by the acquirer is a radio resource control protocol RRC measurement instruction.

22. The base station according to claim 18 or 20, characterized in that, the first interference measurement instruction or the second interference measurement instruction sent by the acquirer further includes specifying the terminal to measure the interference of the different system. The amount of interference used.

23. The base station according to claim 19 or 22, characterized in that, the interference amount sent by the acquirer can specifically be received signal code power, received signal strength indication, reference signal received power, reference signal received quality, etc. .

24. The base station according to any one of claims 17 to 23, characterized in that the processor is configured to compare the interference amount measurement results of the terminal's current serving sector and adjacent sectors, and determine Obtain the interference sector, specifically used for:

Calculate the difference of the interference measurement result of the current serving sector minus the interference measurement result of the adjacent sector respectively; compare the difference with the threshold value, and if the difference is less than the threshold value, make the decision The adjacent sectors corresponding to the difference are the interference sectors of the terminal.