TWI423693B - Signal interference handling method and system and apparatus using the same - Google Patents

Description

Method for processing signal mutual interference and system thereof and device thereof

The present disclosure relates to a method for processing signals to interfere with each other, and more particularly relates to a method for processing a home base station (HBS) for a macro/micro cell base station (MBS). A signal interference cancellation method and system thereof for interference caused by a mobile station (MS), a home base station and a mobile station thereof.

The development of the cellular system has become more and more mature. At present, not only MBS can provide services to mobile stations, but also HBS is built within the scope of MBS to provide services to MS. The HBS is, for example, a femto cell base station, and its covered portion overlaps with the coverage of the MBS.

The HBS may be a base station with restricted access, such as a closed subscriber group home base station (CSG HBS), which does not allow access by non-registered users' MSs. When a mobile station (MBS-served MS, m-MS) that can only be served by the MBS is close to the HBS, the MBS control signal (from the MBS) received by the m-MS may be seriously interfered by the HBS control signal (from HBS), wherein the HBS control signal is a mobile station used to control its registered users, and is not used to control the m-MS. Therefore, the control signal of the HBS is the source of mutual interference of the control signals received by the m-MS.

The exemplary embodiment of the present disclosure provides a method and system for processing signal mutual interference, a home base station thereof and a mobile station thereof. The method for processing interference signals to each other is applicable to a cellular system, wherein the cellular system includes MBS, HBS, and m-MS, wherein the MBS includes a relay station belonging to the extended signal range, and the processing signals interfere with each other. The method includes: the m-MS detecting whether there is mutual interference; if the mutual interference occurs, the m-MS sends an IM request to the HBS; and the HBS enters the low after receiving the IM request Low duty mode (LDM).

An exemplary embodiment of the present disclosure provides a method for processing signal mutual interference, suitable for m-MS of a cellular system, and the method for interfering with the processed signals includes: the m-MS receiving an MBS signal, wherein the MBS signal is from The MBS of the cellular system; the m-MS determines whether there is mutual interference according to the received MBS signal; and if the mutual interference occurs, the m-MS sends an IM request to the cellular system HBS.

The exemplary embodiment of the present disclosure provides a method for processing signal mutual interference, which is applicable to an HBS of a cellular system, and the method for processing the signals to interfere with each other includes: the HBS enters an LDM after receiving an IM request, where the IM request The m-MS of the cellular system is transmitted when mutual interference is detected.

An exemplary embodiment of the present disclosure provides a method for processing signal mutual interference, for an HBS of a cellular system, and the method for interfering with the processing signals includes: after receiving the IM request, the HBS and the Hive The MBS of the system communicates and sets the transmission power of the frequency partition of the HBS signal set by fractional frequency reuse (FFR) and the FFR period, wherein the IM request is performed by the cellular system The m-MS is transmitted when it detects mutual interference; and the HBS operates in the frequency division of the communication during the FFR period.

An exemplary embodiment of the present disclosure provides a method for processing signal mutual interference, for an HBS of a cellular system, and the method for interfering with the processing signals includes: after receiving the IM request, the HBS sends an MBS signal request to the HBS. The MBS of the cellular system, wherein the IM request is sent by the m-MS of the cellular system when mutual interference is detected; after the HBS sends an MBS signal request, the HBS receives the information from the The MBS signal of the MBS; the HBS sends the HBS signal and the MBS signal to the m-MS in a multiplex transmission manner.

The exemplary embodiment of the present disclosure provides a cellular wireless communication system suitable for processing signal interference. The cellular wireless communication system includes: a macro/micro cell base station (MBS); a base station (HBS); and a mobile station (m-MS) providing the MBS service, wherein the m- The MS detects whether there is mutual interference, wherein if the mutual interference occurs, the m-MS sends an interference cancellation IM request to the HBS; and the HBS enters the LDM after receiving the IM request.

The illustrative example of the present disclosure provides a mobile station adapted to handle signal interference. The mobile station receives an MBS signal, wherein the MBS signal is from an MBS. The mobile station determines whether there is mutual interference according to the received MBS signal. If there is such mutual interference, the m-MS sends an IM request to an HBS.

The exemplary embodiment of the present disclosure provides a base station adapted to handle signal interference. The base station enters the LDM after receiving an IM request, where the IM request is sent by an m-MS served by an MBS when mutual interference is detected.

The exemplary embodiment of the present disclosure provides a base station adapted to handle signal interference. After the base station receives an IM request, the base station communicates with an MBS, and sets a frequency partition transmission power and a FFR period of the base station signal set by the FFR, where The IM request is sent by an m-MS served by the MBS when mutual interference is detected. The base station operates in the frequency division of the communication during the FFR period.

The exemplary embodiment of the present disclosure provides a base station adapted to handle signal interference. After the base station receives an IM request, the base station sends an MBS signal request to the MBS, where the IM requests an m-MS served by the MBS to detect mutual Sent when the interference occurs. After the base station transmits the MBS signal request, the base station receives an MBS signal from the MBS. The base station sends the base station signal and the MBS signal to the m-MS in a multiplex transmission manner.

Based on the above, the exemplary embodiment of the present disclosure provides a plurality of signal mutual interference processing methods and systems thereof for mitigating interference of an HBS signal to an MBS signal, a home base station thereof and a mobile station thereof. The m-MS close to the HBS will correctly receive the MBS signal by the method in which the processed signals interfere with each other.

The above described features and advantages of the present invention will be more apparent from the following description.

First, please refer to FIG. 1. FIG. 1 is a schematic diagram of a cellular system provided by an exemplary embodiment of the present disclosure. The cellular system 1 comprises MBS 11, HBS 12, m-MS 13 (served by MBS 12) and MS 14 (served by HBS 12), wherein HBS 12 may for example be a CSG HBS or a femtocell base station, HBS 12 Coverage 15 overlaps with the coverage of MBS 11. When the m-MS 13 is close to the HBS 12, the MBS signal received from the m-MS 13 (from the MBS 11) may be interfered by the HBS signal (from the HBS 12), and the MBS signal and the HBS signal described herein may Is the system's control signal or data signal. Accordingly, the exemplary embodiment of the present disclosure provides various methods for mitigating or processing mutual interference of HBS signals with MBS signals such that the m-MS 13 can correctly receive MBS signals.

Next, please refer to FIG. 2. FIG. 2 is a flowchart of a method for interfering with processing signals according to an exemplary embodiment of the present disclosure, wherein the step indicated by a broken line is a non-essential step. In step S201, the MBS 11 transmits an MBS signal to the m-MS 13, which in the present example is a system control signal. Next, in step S202, the m-MS 11 detects whether there is mutual interference according to the received MBS signal. When the m-MS 11 is close to the HBS 12, the MBS signal may be seriously interfered by the HBS signal, and the MBS signal received by the m-MS 11 is incorrect. Therefore, the m-MS 11 can transmit the received MBS signal. Decoding and demodulating or estimating the signal to interference and noise ratio (SINR) to determine whether mutual interference occurs.

In the exemplary example of FIG. 2, it is assumed that the m-MS 11 detects mutual interference, so in step S203, the m-MS 11 transmits an IM request to the HBS 12. After receiving the IM request, the HBS 12 can directly enter the LDM, wherein the LDM period set by the LDM and the startup service-activating-deactivating pattern are preset during the LDM period and the startup service does not start the service pattern. The LDM period is the operating time of the LDM, and the LDM starts the service-no-service pattern to indicate the staggered distribution during the LDM period during the start-up service and during the non-start-up service.

Another possible implementation manner is that when the HBS 12 receives the IM request, it first determines whether there is any mobile station (MS) in the coverage of the HBS 12, wherein, if there is no service, The MS, and the HBS 12 does not have any MS to perform a network connection procedure within its coverage, then the HBS 12 enters the LDM.

However, in order to prevent a malicious m-MS from sending an IM request to the HBS 12, in the exemplary example of FIG. 2, the HBS 12 performs step S204 before entering the LDM, however step S204 is not a necessary step. In step S204, the HBS 12 confirms the authentication of the IM requester (i.e., m-MS) to the MBS 11, and if the HBS 12 successfully authenticates the IM requester, step S2051 is executed. In step S2051, the HBS 12 sets the LDM period set by the LDM and the start service-non-start service style. Generally, the LDM setting is the preset LDM setting (that is, the period and start of the preset LDM are used). Service - does not start the service style).

In step S2052, the HBS 12 enters the LDM, and during the start-up service during the LDM period, the HBS 12 operates in the normal mode and operates in the normal mode; and during the non-start service during the LDM period, the HBS 12 is within its coverage. The member's MS is prohibited from receiving signals and transmitting signals from the wireless channel to the wireless channel. However, it is still possible for the MBS 11 to continue to transmit the MBS signal to the m-MS 13. For example, in step S206, the MBS 11 transmits another MBS signal to the m-MS 13. Next, in step S207, the m-MS 13 detects whether there is mutual interference. In this exemplary example, it is assumed that there is still mutual interference, so step S208 will be performed.

At step S208, the m-MS 13 sends an IM request to the HBS 12. Similarly, in order to prevent a malicious m-MS from sending an IM request to the HBS 12, in the exemplary example of FIG. 2, the HBS 12 performs step S209 before performing step S2053, but step S209 is not a necessary step. In step S209, the HBS 12 confirms the authentication of the IM requester (i.e., m-MS) to the MBS 11, and if the HBS 12 successfully authenticates the IM requester, step S2053 is executed. In step S2053, the HBS 12 determines whether it is necessary to adjust the LDM setting. If it is necessary to adjust the LDM setting, the LDM period set for the LDM and the start service-non-start service pattern are re-set. Next, in step S2054, the HBS 12 continues to operate in the LDM.

It should be noted that, each time the LDM setting is adjusted, the HBS 12 can also transmit the response signal to the MS of the member in its coverage, so that the MS of the member within its coverage knows whether to start the service or not. The staggered distribution during the LDM during the start of the service. In addition, the LDM described in the exemplary example in the present disclosure may be an LDM described in the IEEE 802.16 system, but the LDM is not limited to the LDM of the IEEE 802.16 system. In other wireless communication standards, although the name of the LDM may be different, as long as its substantive meaning is the same as that of the LDM, it is within the scope disclosed in the illustrative examples.

The cellular system 1 described above may be, for example, an IEEE 802.16m system, and the IM request is an advanced air interface ranging request (AAI-RNG-REQ) with a femto interference bit set to 1. ). In another exemplary example, the HBS 12 needs to have no MSs in its coverage as members of the HBS, and the HBS 12 enters without any MS performing network member joining procedures within its coverage. The LDM.

In addition, when the cellular system 1 is an IEEE 802.16m system, the above-mentioned startup service period is a service available interval (AI), and the service unavailable interval (service unavailable interval (UAI) is not started. . When the HBS 12 enters the LDM, the HBS 12 operates in the normal mode within the AI, and the HBS 12 is prohibited from transmitting any signals to the wireless interface within the UAI. The HBS 12 sends an advanced air interface registration response (AAI-REG-RSP) to the MS whose coverage is within its AI to enable the MS to be informed of its membership. The interlaced distribution of AI and the UAI during the LDM. In other words, AAI-REG-RSP is a message with LDM parameter configuration information.

Please refer to FIG. 3, which is a flowchart of a method for confirming the authentication of an IM requester provided by an exemplary embodiment of the disclosure. In step S301, the m-MS 13 sends an IM request to the HBS 12 when detecting mutual interference, and the IM request may include an m-MS identification and authentication message. In another exemplary example, it is also possible that the m-MS 13 will request the m-MS identification and authentication message after the HBS 12 receives the IM request.

Step S304 includes steps S302 and S303. In step S302, the HBS 11 transmits an m-MS identification and authentication message to the MBS 11. If the MBS 11 determines that the m-MS 13 is a valid user according to the m-MS identification and authentication message, step S303 is performed; if the MBS 11 determines that the m-MS 13 is an unlawful user according to the m-MS identification and authentication message, The MBS 11 will then send a reject message to the HBS 12. In this exemplary example, it is assumed that the MBS 11 judges that the m-MS 13 is a legitimate user based on the m-MS identification and authentication message, and therefore, in step S303, the MBS transmits an acknowledgement message to the HBS so that the HBS 12 can successfully confirm the IM. Requester's certification.

Please refer to FIG. 4. FIG. 4 is a flowchart of a method for processing signal interference according to an exemplary embodiment of the present disclosure. In step S401, the m-MS 13 receives the MBS signal. Next, in step S402, the m-MS 13 detects whether there is mutual interference. If the m-MS 13 does not detect mutual interference, the method of mutual interference of the processed signals is terminated; if the m-MS 13 detects mutual interference, then step S403 is performed. In step S403, the m-MS 13 sends an IM request to the HBS 12. As mentioned previously, the IM request may include an m-MS identification and authentication message, and in an IEEE 802.16 system, the IM request has a femto interference bit of value 1.

Please refer to FIG. 5. FIG. 5 is a flowchart of a method for interfering with processing signals according to an exemplary embodiment of the present disclosure, which is executed in an HBS, wherein the step indicated by the dotted line is a non-essential step, if the non-essential judging step is not performed. , you can decide yes or no according to the system preset. First, in step S501, the HBS 12 receives an IM request. Then, in step S502, the HBS 12 determines whether or not the authentication of the IM requester is confirmed. If the HBS 12 successfully confirms the authentication of the IM requester, it proceeds to step S503; if the HBS 12 does not successfully confirm the authentication of the IM requester, the entire processing signal mutual interference method is terminated. As described above, the purpose of performing step S502 is to prevent a malicious m-MS from transmitting an IM request, and step S502 can thereby remove the signal mutual interference method.

In step S503, the LDM period in the LDM setting and the startup service-non-start service pattern are set. After the setting is completed, step S504 is performed. In step S504, the HBS 12 operates in the LDM during the LDM period. At step S505, the HBS 505 determines whether the LDM period has expired. If the HBS 505 determines that the LDM period has expired, step S506 is performed; if the HBS 505 determines that the LDM period has not expired, step S508 is performed. Steps S505 and S506 are not necessary steps. In another exemplary example, the HBS 12 may not be allowed to end the LDM. In step S506, the HBS 12 ends the LDM and continues to operate in the normal mode.

In step S508, the HBS 12 determines whether an IM request is received during the start of the service. If the HBS 12 receives the IM request during the startup service period, step S507 is performed; if the HBS 12 does not receive the IM request during the startup service period, step S504 is performed to enable the HBS 12 to continue to operate on the LDM using the previous LDM setting. . In step S507, the HBS 12 determines whether it is necessary to adjust the LDM setting. If the HBS 12 determines that the LDM setting needs to be adjusted, then to step S503, the LDM setting is adjusted, and after step S503, step S504 is performed to cause the HBS 12 to operate on the LDM set using the new LDM. If the HBS 12 determines that it is not necessary to adjust the LDM setting, then step S503 is taken to cause the HBS 12 to continue to operate on the LDM using the previous LDM setting.

In general, if the HBS 12 still receives an IM request during the start of the service, it indicates that the interference situation may not be significantly improved, and therefore, the proportion of the period during which the service is not started is increased to reduce the situation in which the signals interfere with each other. However, steps S507, S508 may also be removed from the method of interfering signal interference by this, without considering that the interference may not be significantly improved. In summary, in the exemplary example of FIG. 5, steps S502, S505-S508 are not essential steps.

Next, please refer to FIG. 6. FIG. 6 is a flowchart of a method for interfering with processing signals according to an exemplary embodiment of the present disclosure, wherein the step indicated by the broken line is a non-essential step. Steps S601 to S604 are the same as steps S201 to S204 of FIG. 2, and therefore are not described again. Step S604 is also not a necessary step for the method of processing signal mutual interference. In step S605, the HBS 12 communicates with the MBS 11 and sets the transmission power and the fractional frequency reuse (FFR) period of the frequency division of the HBS signal set by the partial frequency reuse. Here, part of the frequency reuse means that the base station further segments the frequency bands that can be used by the base station, and these re-segmented small frequency bands can be reused in different communication ranges according to communication requirements, environments, conditions, settings, and the like. Or share it with other base stations. Thus, the frequency at which the HBS 12 transmits the HBS signal may differ from the frequency of the MBS signal. Next, in step S606, the HBS 12 operates in the frequency division communicated during the FFR period, that is, the HBS 12 transmits the HBS signal using the frequency of the frequency division result and the transmission power.

Please refer to FIG. 7. FIG. 7 is a flowchart of a method for interfering with processing signals according to an exemplary embodiment of the present disclosure, which is executed in an HBS, wherein the step indicated by the dotted line is an unnecessary step, if the non-essential step is not performed. , you can decide yes or no according to the system preset. Steps S701 and S702 are the same as steps S501 and S502 of FIG. 5, and therefore will not be described again. Similarly, step S702 is not a necessary step for the method of processing signal mutual interference. In step S703, the HBS 12 communicates with the MBS 11, and sets the transmission power and the FFR period of the frequency division of the HBS signal set by the partial frequency reuse. Then, in step S704, the HBS 12 operates in the frequency division communicated during the FFR period, and the HBS 12 transmits the HBS signal using the frequency of the frequency division result and the transmission power.

Next, in step S705, the HBS 12 checks if the FFR period has expired. If the FFR period expires, then step S706 is reached, and in step S706, the HBS 12 operates at the original frequency (the frequency used before the FFR setting is not performed), and the original frequency is used to transmit the HBS signal. If the FFR period has not expired in step S705, the process returns to step S703, and the frequency division, transmission power, and FFR period set by the FFR are set before each time the HBS signal is to be transmitted.

Next, please refer to FIG. 8. FIG. 8 is a flowchart of a method for interfering with processing signals according to an exemplary embodiment of the present disclosure, wherein the step indicated by the broken line is a non-essential step. Steps S801 to S804 are the same as steps S201 to S204 of FIG. 2, and therefore are not described again. Step S804 is also not a necessary step for the method of processing signal mutual interference. In step S805, the HBS 12 sends a signal request to the MBS 11. In step S806, the MBS 11 transmits an MBS signal to the HBS 12 after receiving the signal request. In step S807, the HBS 12 transmits the HBS signal and the MBS signal to the m-MS 13 in a multiplex transmission mode, wherein the multiplex transmission method performs different channel coding of the MBS signal and the HBS signal, and the encoded MBS signal is After the HBS signals are added, they are transmitted to the m-MS 13. Here, the MBS signal and the HBS signal can be added by adding their weights respectively, so that the result of weighted addition of the two signals can be obtained; if the weights used by the two signals are unit weights (for example, the weight is equal to 1), then The same result as the unweighted addition can be obtained.

Please refer to FIG. 9. FIG. 9 is a schematic diagram of an HBS transmission frame provided by an exemplary embodiment of the disclosure. The HBS frame 91 transmitted by the HBS 12 in FIG. 9 includes the encoded HBS signal 92 and the encoded MBS signal 93, and the encoded HBS signal 92 and the encoded MBS signal 93 are superimposed together. Received by m-MS 13. Since the m-MS 13 and the MSs of its members use different channel coding within the coverage of the HBS 12, the m-MS 13 can smoothly decode the MBS signal from the superimposed signals.

Please refer to FIG. 10. FIG. 10 is a flowchart of a method for interfering with processing signals according to an exemplary embodiment of the present disclosure, which is executed in an HBS, wherein the step indicated by the dotted line is an unnecessary step, if the non-essential step is not performed. , you can decide yes or no according to the system preset. Steps S1001 and S1002 are the same as steps S501 and S502 of FIG. 5, and therefore will not be described again. Similarly, step S1002 is not a necessary step for the method of processing signal mutual interference. In step S1003, the HBS 12 requests the MBS 11 to provide an MBS signal. In step S1004, the HBS 12 receives the MBS signal. In step S1005, the HBS 12 transmits the HBS signal and the MBS signal to the m-MS 13 in a multiplexed transmission manner.

In step S1006, the HBS 12 checks if the MBS 11 has other MBS signal transmissions. If the MBS 11 has other MBS signals to transmit, then to step S1004, the HBS 12 receives other MBS signals. If the MBS 11 has no other MBS signals to transmit, it proceeds to step S1007. In step S1007, it is checked if the HBS 12 still needs the MBS 11 to request other MBS signals. If the HBS 12 still needs the MBS 11 to request other MBS signals, then in step S1003, the MBS 11 is requested to request the MBS signal. If the HBS 12 does not require the MBS 11 to request other MBS signals, the processing signal mutual interference method is ended. Steps S1006 and S1007 are not essential steps and may be removed in other exemplary examples.

Please refer to FIG. 11. FIG. 11 is a flowchart of a method for processing signal interference according to an exemplary embodiment of the present disclosure. Steps S1101 and S1102 are the same as steps S401 and S402 of FIG. 4, and therefore will not be described again. In step S1103, the m-MS 13 regenerates the waveform of the HBS signal. In step S1104, the m-MS 13 subtracts the waveform of the regenerated HBS signal from the waveform superimposed by the HBS signal and the MBS signal to eliminate interference of the HBS signal with the MBS signal.

In summary, the exemplary embodiment of the present disclosure provides a plurality of methods for interfering with processing signals for mitigating or processing interference of an HBS signal to an MBS signal, and a system thereof, a home base station thereof and a mobile station thereof. Through the method in which the processed signals interfere with each other, the m-MS close to the HBS can correctly receive the MBS signal.

The present disclosure has been disclosed in the above embodiments, but it is not intended to limit the disclosure, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the disclosure. The scope of protection of this disclosure is subject to the definition of the scope of the patent application.

1. . . Honeycomb system

11. . . MBS

12. . . HBS

13. . . m-MS

14. . . MS

15. . . HBS coverage

S201～S204, S2051～S2054, S206～S208. . . Step flow

S301～304. . . Step flow

S401～S403. . . Step flow

S501～S508. . . Step flow

S601～S606. . . Step flow

S701～S706. . . Step flow

S1001～S1007. . . Step flow

S1101～S1104. . . Step flow

1 is a schematic diagram of a cellular system provided by an exemplary embodiment of the present disclosure.

2 is a flow chart of a method for interfering with processing signals provided by an exemplary embodiment of the present disclosure.

3 is a flow chart of a method for confirming authentication of an IM requester provided by an exemplary embodiment of the present disclosure.

FIG. 4 is a flowchart of a method for processing signal interference according to an exemplary embodiment of the present disclosure performed on an m-MS.

FIG. 5 is a flowchart of a method for processing mutual interference of signals provided by an exemplary embodiment of the present disclosure.

FIG. 6 is a flowchart of a method for processing signal mutual interference provided by an exemplary embodiment of the present disclosure.

FIG. 7 is a flowchart of a method for processing signal mutual interference provided by an exemplary embodiment of the present disclosure.

FIG. 8 is a flow chart of a method for processing signal mutual interference provided by an exemplary embodiment of the present disclosure.

FIG. 9 is a schematic diagram of an HBS transmission frame provided by an exemplary embodiment of the disclosure.

FIG. 10 is a flowchart of a method for processing signal interference according to an exemplary embodiment of the present disclosure.

FIG. 11 is a flowchart of a method for processing signal interference according to an exemplary embodiment of the present disclosure performed on an m-MS.

11. . . MBS

12. . . HBS

13. . . m-MS

S201～S204, S2051～S2054, S206～S208. . . Step flow

Claims (26)

A method for processing signal mutual interference, for a cellular system, wherein the cellular system comprises a macro/micro cell base station (MBS), a home base station (HBS), and a The MBS-served mobile station (m-MS), and the method for the processing signals to interfere with each other includes: the m-MS detecting whether there is mutual interference; if the mutual interference occurs, The m-MS sends an interference mitigation (IM) request to the HBS; after receiving the IM request, the HBS enters a low duty mode (LDM); the HBS is Before entering the LDM, setting the startup service-activating-deactivating pattern and the LDM period set by the LDM, wherein the LDM period is the operation time of the LDM, and the LDM startup service does not start the service. The pattern is used to indicate an interlaced distribution during the LDM period during the start of the service and during the non-initiation of the service; the HBS checks whether the LDM period expires; if the LDM period expires, the HBS returns to the normal mode or Continuing to operate in LDM; if the LDM period has not expired, the HBS checks whether the IM request is received during the start-up service period; if the HBS does not receive the IM please And continuing to operate in the LDM; if the HBS receives the IM request during the startup service period, checking whether the LDM setting needs to be adjusted; and if the LDM setting needs to be adjusted, The HBS resets the boot service - does not initiate the service pattern and the LDM period, and after resetting, the HBS enters the reset LDM. The method for interfering with processing signals according to claim 1 further includes: the MBS can provide an m-MS service through one of the MBS extension relay stations. The method for processing the signals to interfere with each other as described in claim 1, further comprising: after receiving the IM request, the HBS confirms the authentication of the m-MS to the MBS; and if the HBS Upon successful verification of the authentication of the m-MS, the HBS enters the LDM. The method for processing interference of the processed signals according to claim 3, wherein the step of confirming the authentication of the m-MS comprises: the HBS transmitting an m-MS identification and an authentication message to the MBS; The MBS sends an acknowledgement message or a reject message to the HBS according to the m-MS identification and the authentication message. A method for processing signals interfere with each other as described in claim 4, wherein the IM request includes the m-MS identification and the recognition Certificate message. A method of interfering with processing signals as recited in claim 1 wherein if the LDM period expires and the HBS continues to operate in LDM, the HBS may continue to operate at the same LDM setting as described. The method of processing signals interfere with each other as described in claim 1, wherein if the LDM period expires and the HBS continues to operate as an LDM, the HBS can operate with the different LDM settings. The method for processing signals interfere with each other as described in claim 1, wherein the cellular system is a system of IEEE 802.16m and WiMAX, and the IM request is an advanced wireless interface measurement in which the femto interference bit is set to 1. An advanced air interface ranging request (AAI-RNG-REQ) message is obtained, and the HBS enters the LDM after receiving the AAI-RNG-REQ. The processing signal mutual interference method according to claim 8, wherein the starting service period is an available interval (AI), and the non-starting service period is an unavailable interval (UAI); When the HBS enters the LDM, the HBS operates in a general mode within the AI, and the HBS does not transmit any signals to the wireless interface within the UAI. The method for processing signal mutual interference according to claim 9, wherein the HBS sends a message with LDM parameter configuration information to the MS whose coverage is included in the AI, so that the MS obtains Knowing the interlaced distribution of the AI and the UAI during the LDM shape. The method for processing signals interferes with each other as described in claim 1, wherein the HBS determines whether there is any mobile station in the service within the coverage of the HBS after receiving the IM request (mobile station) MS), wherein the LDM is entered if there is no MS in the service and the HBS does not have any MS to perform a network connection procedure within its coverage. A method for processing signal mutual interference, for an HBS of a cellular system, and the method for interfering with the processed signal comprises: the HBS entering an LDM after receiving an IM request, wherein the IM request is performed by the cellular system The m-MS is sent when detecting mutual interference; the HBS sets the startup service-non-start service mode and the LDM period set by the LDM before entering the LDM, wherein the LDM period is LDM Operating time, and the LDM initiating service-initiating service style is used to indicate an interleaved distribution situation during LDM during the start of the service and not during the service; the HBS checks whether the LDM period expires; if the LDM period Upon expiration, the HBS returns to the normal mode or continues to operate with the LDM; if the LDM period has not expired, the HBS checks whether the IM request is received during the start-up service; if the HBS If the IM request is not received within the valid period, the operation continues in the LDM; If the HBS receives the IM request within the valid period, check whether the LDM setting needs to be adjusted; and if the LDM setting needs to be adjusted, the HBS resets the startup service-no service During the pattern and the LDM, and after resetting, the HBS enters the reset LDM. The method for processing the signals to interfere with each other as described in claim 12, further comprising: after receiving the IM request, the HBS confirms the authentication of the m-MS to the MBS; and if the HBS Upon successful verification of the authentication of the m-MS, the HBS enters the LDM. The method for processing the signals interfere with each other as described in claim 13 wherein the step of confirming the authentication of the m-MS comprises: the HBS transmitting an m-MS identification and an authentication message to the MBS; The MBS sends an acknowledgement message or a reject message to the HBS according to the m-MS identification and the authentication message. The method of processing signals interfere with each other as described in claim 14, wherein the IM request includes the m-MS identification and the authentication message. A method of interfering with processing signals as described in claim 12, wherein if the LDM period expires and the HBS continues to operate in LDM, the HBS may continue to operate with the same LDM setting as described. A method of processing signals interfere with each other as described in claim 12, wherein if the LDM period expires and the HBS continues to operate in LDM, the HBS can operate with the different LDM settings. The method for processing signals interferes with each other as described in claim 12, wherein the cellular system is a 1EEE 802.16m and WiMAX system, and the IM request is an advanced wireless interface with a femto interference bit set to 1. The advanced air interface ranging request (AAI-RNG-REQ) information is entered, and the HBS enters the LDM after receiving the AAI-RNG-REQ. The method for processing signals interferes with each other as described in claim 18, wherein the start service period is an available interval (AI), and the non-start service period is an unavailable interval (unavailable interval) And when the HBS enters the LDM, the HBS operates in a general mode within the AI, and the HBS does not transmit any signals to the wireless interface within the UAI. The method for processing interference signals according to claim 19, wherein the HBS sends a message with LDM parameter configuration information to the MS whose coverage is within its AI, so that the MS The staggered distribution of the AI and the UAI during the LDM is known. The processing signals described in item 12 of the patent application scope are mutually dry. a method for locating, wherein the HBS receives the information about the configuration of the LDM parameter, and first determines whether there is any mobile station (MS) in the service within its coverage, wherein if there is no service in the service The HBS enters the LDM when the HBS does not have any MS to perform a network connection procedure within its coverage. A cellular wireless communication system is suitable for processing signal mutual interference. The cellular wireless communication system comprises: a macro/micro cell base station (MBS); and a home base station (HBS) And an MBS-served mobile station (m-MS), wherein the m-MS detects mutual interference, wherein if the mutual interference occurs, the m - the MS sends an interference mitigation (IM) request to the HBS; after receiving the IM request, the HBS enters a low duty mode (LDM); the HBS enters the LDM Before, the startup service set for the LDM - the startup service mode and the LDM period are set, wherein the LDM period is the operation time of the LDM, and the LDM startup service - does not start the service style to indicate that the service is started and not started. An interleaved distribution during the service period during LDM; the HBS checks whether the LDM period expires; If the LDM period expires, the HBS returns to the normal mode or continues to operate with the LDM; if the LDM period has not expired, the HBS checks whether the IM request is received during the start service period If the HBS does not receive the IM request within the valid period, continue to operate in the LDM; if the HBS receives the IM request within the valid period, check whether the adjustment is needed The LDM setting is set; and if the LDM setting needs to be adjusted, the HBS resets the startup service-non-start service pattern and the LDM period, and after resetting, the HBS enters the reset LDM. The cellular wireless communication system of claim 22, wherein the HBS confirms the authentication of the m-MS to the MBS after receiving the interference mitigation (IM) request; And if the HBS successfully confirms the authentication of the m-MS, the HBS enters the LDM. The cellular wireless communication system of claim 22, wherein, after receiving the IM request, the HBS first determines whether there is any mobile station in the service within the coverage of the HBS (mobile station) , MS), wherein, if there is no MS in the service, and the HBS does not have any MS to perform a network connection procedure within its coverage, Enter the LDM. A base station adapted to process signal interference, comprising a transmitter and a receiver for transmitting and receiving data, and a processor coupled to the transmitter and the receiver, configured to: receive an interference After the interference mitigation (IM) request, the low duty mode (LDM) is entered, wherein the IM request is provided by a macro/micro cell base station (MBS). The MBS-served mobile station (m-MS) is sent when the mutual interference is detected; before the HBS enters the LDM, the startup service of the LDM is set, the service mode is not started, and the LDM period is set. Wherein the LDM period is an operation time of the LDM, and the LDM start service-non-start service pattern is used to indicate an interleaved distribution period during the LDM period during the start of the service period and the non-start service period; the HBS checks whether the LDM period is Expiration; if the LDM period expires, the HBS returns to the normal mode or continues to operate in the LDM; if the LDM period has not expired, the HBS checks whether it is within the startup service period Receiving the IM request; if the HBS does not receive the IM request within the valid period, continuing to operate in the LDM; if the HBS receives the IM request within the valid period, Then checking whether the LDM setting needs to be adjusted; and if the LDM setting needs to be adjusted, the HBS resets the location The startup service - does not initiate the service pattern and the LDM period, and after resetting, the HBS enters the reset LDM. The base station of claim 25, wherein the base station confirms the authentication of the m-MS to the MBS after receiving the IM request; and if the HBS successfully confirms the location The authentication of the m-MS, the base station enters the LDM.