Patent Description:
Because a new radio (new radio, NR) communication system is designed based on a full-beam air interface, and there is no cell-level reference signal that is continuously sent, a long term evolution (long term evolution, LTE) cell causes great intra-frequency interference impact on a neighboring NR cell. Especially at an early stage of NR network deployment, an LTE network is in a relatively overloaded state because a quantity of users of an NR network is less than a quantity of users of the LTE network. In this case, intra-frequency interference impact caused by an LTE cell in the relatively overloaded state on an NR cell in a relatively underloaded state further deteriorates.

In a related technology, to reduce intra-frequency interference caused by the LTE cell to the neighboring NR cell, an operator can only deploy a bufferzone to minimize the intra-frequency interference caused by the LTE cell to the neighboring NR cell. A specific method for deploying the bufferzone is to plan a sufficient geographical spacing between the NR cell and the LTE cell, to reduce, to an acceptable degree, the intra-frequency interference caused by the LTE cell to the neighboring NR cell.

Although deploying the bufferzone can reduce the intra-frequency interference caused by the LTE cell to the neighboring NR cell, a coverage hole between the LTE network and the NR network is also caused. This affects continuity of the LTE network and the NR network.

<CIT> discloses a common control signal via a group common control channel (GCCC) for a new radio access technology (NR). A user equipment (UE) receives the common control signal from a network via GCCC. The common control signal is for all UEs or a group of UEs in a cell. The UE handles the priority of the common control signal compared to other signals. For example, the priority of the common control signal may be higher than a semi-static UE-specifically configured configuration, and may be lower than a cell-commonly or group-commonly configured configuration.

<CIT> relates to a method, device and apparatus for inter-cell interference suppression, and a computer storage medium. The method comprises: performing interference detection on a serving cell according to an interference detection rule agreed with N distinct-system neighboring areas of the serving cell; then generating an interference suppression decision according to the interference suppression result, the interference suppression decision being used for representing a mode of same-frequency interference caused by the distinct-system neighboring areas of the serving cell to the serving cell; and finally, performing de-interference processing based on the interference suppression decision.

The invention is defined and limited by the appended set of independent claims.

Embodiments of this application provide an anti-interference method for a new radio network, to reduce intra-frequency interference caused by an LTE cell to a neighboring NR cell.

According to aspects of this application, it can be learned that embodiments of this application have the following advantages:
In embodiments of this application, target user equipment includes a service signal in a first area that is in an anti-interference pattern and that has no interference signal of a neighboring LTE cell, and a second area is used to carry an interference signal of at least one LTE cell. Therefore, when no geographically isolated bufferzone is deployed, intra-frequency interference caused by the LTE cell to a neighboring NR cell can be reduced, thereby ensuring network coverage integrity and continuity of an LTE network and an NR network. In addition, a solution in which the LTE network and the NR network jointly cover a same area is also supported.

Because a new radio (new radio, NR) communication system is designed based on a full-beam air interface, and there is no cell-level reference signal that is continuously sent, the long term evolution (long term evolution, LTE) cell causes great intra-frequency interference impact on the neighboring NR cell. Especially at an early stage of NR network deployment, an LTE network is in a relatively overloaded state because a quantity of users of an NR network is less than a quantity of users of the LTE network. In this case, interference impact of an LTE cell reference signal (cell reference signal, CRS) of an LTE cell in the relatively overloaded state on an NR cell in a relatively underloaded state further extends. However, at the early stage of NR network deployment, the user of the LTE network needs to coexist with the user of the NR network for a period of time. Therefore, the intra-frequency interference caused by the LTE cell to the neighboring NR cell greatly affects experience of the user of the NR network.

Refer to <FIG>. In a related technology, no related general anti-interference algorithm is formulated in a conventional technology to reduce intra-frequency interference caused by an LTE cell to a neighboring NR cell. Therefore, to reduce the intra-frequency interference caused by the LTE cell to the neighboring NR cell, an operator can only deploy a geographically isolated bufferzone to minimize the intra-frequency interference caused by the LTE cell to the neighboring NR cell. A specific method for deploying the bufferzone is to plan a sufficient geographical spacing between the NR cell and the LTE cell, to reduce, to an acceptable degree, the intra-frequency interference caused by the LTE cell to the neighboring NR cell. The bufferzone needs be planned based on engineering parameters such as antenna heights, azimuths, and downtilt of the LTE and NR cells, and designed and planned by using a planning tool based on different propagation environments, different geographical areas, and used frequency bands. Finally, a geographical area size of the bufferzone that meets a requirement is obtained.

Refer to <FIG>. Although deploying the geographically isolated bufferzone can reduce the intra-frequency interference caused by the neighboring LTE cell to the NR cell, a coverage hole between an LTE network and an NR network is also caused. This greatly affects continuous coverage of the LTE network and the NR network. In addition, it is clear that the method for deploying the geographically isolated bufferzone does not support a solution in which the LTE network and the NR network jointly cover a same area. Specifically, in one aspect, a user of the LTE network in a coverage area of the NR cell cannot normally use the LTE network, and a user of the NR network in a coverage area of the LTE cell cannot normally use the NR network either. At an early stage of NR network deployment, a quantity of users of the NR network is small, and a quantity of users of the LTE network is still increasing. Therefore, LTE and NR (LTE and NR, LNR) network mixed networking shown in <FIG> is required, but the solution of deploying the geographically isolated bufferzone does not support LNR mixed networking. In another aspect, in a scenario of dynamic spectrum sharing (dynamic spectrum sharing, DSS) between the NR cell and the LTE cell, regardless of whether the NR cell and the LTE cell have different bandwidth spectrums, as shown in <FIG>, or the NR cell and the LTE cell have a same bandwidth spectrum, as shown in <FIG>, there is definitely a common coverage area of the LTE network and the NR network. Therefore, bufferzone deployment does not support this scenario either.

Refer to <FIG>. In this embodiment of this application, user equipment in an NR cell is interfered by intra-frequency signals from a neighboring LTE cell <NUM> and a neighboring LTE cell <NUM>. The neighboring LTE cell may be an LTE cell with two CRS ports, or may be an LTE cell with four CRS ports. Comb anti-interference information is configured for all the user equipment in a coverage area of the NR cell, and the comb anti-interference information includes a comb anti-interference pattern. User equipment <NUM> that is in the NR cell and that receives strong signal interference from the neighboring LTE cell makes the anti-interference pattern take effect, to reduce the signal interference from the neighboring LTE cell.

Specifically, refer to <FIG>. First, a base station corresponding to an NR cell obtains CRS network configuration information of at least one neighboring LTE cell. The base station corresponding to the NR cell configures comb anti-interference configuration information for target user equipment in the NR cell based on the CRS network configuration information, and sends the comb anti-interference configuration information to the target user equipment in the NR cell, where the comb anti-interference configuration information includes a comb anti-interference pattern. Then, target user equipment that receives a strong interference signal from the at least one neighboring LTE cell makes the anti-interference pattern take effect, to reduce signal interference from the neighboring LTE cell.

In this embodiment of this application, the comb anti-interference pattern in the comb anti-interference configuration information sent by the NR cell to the target user equipment may be a periodic comb anti-interference pattern, or may be a dynamic comb anti-interference pattern. The following provides separate descriptions.

Refer to <FIG>. A procedure of an anti-interference method for an NR network in this embodiment of this application includes the following steps.

<NUM>: A base station corresponding to an NR cell obtains network configuration information of a neighboring LTE cell. The base station corresponding to the NR cell obtains CRS network configuration information of at least one neighboring LTE cell, where the network configuration information includes a quantity of network ports of the at least one LTE cell. Specifically, the base station corresponding to the NR cell and a base station corresponding to the at least one LTE cell are not a same base station, the CRS network configuration information of the at least one LTE cell is stored in the base station corresponding to the at least one LTE cell, and the base station corresponding to the NR cell obtains the CRS network configuration information of the at least one LTE cell through signaling interaction with the base station corresponding to the at least one LTE cell. The base station corresponding to the NR cell and the base station corresponding to the at least one LTE cell may obtain the CRS network configuration information of the at least one LTE cell by querying a configuration of an inter-RAT neighboring cell.

In a possible implementation, the base station corresponding to the NR cell and the base station corresponding to the at least one LTE cell are a same base station. For example, in a scenario of spectrum sharing between the NR cell and the LTE cell, the base station corresponding to the NR cell and the base station corresponding to the LTE cell may be the same base station. The network configuration information of the at least one LTE cell is stored in the base station corresponding to the at least one LTE cell. In this case, the base station corresponding to the NR cell extracts the network configuration information that is of the at least one LTE cell and that is stored in the base station.

In this embodiment of this application, the base station corresponding to the NR cell and the base station corresponding to the at least one LTE cell may be the same base station, or may be different base stations. This is not specifically limited herein.

<NUM>: The base station corresponding to the NR cell determines comb anti-interference configuration information based on the network configuration information.

The NR cell determines the comb anti-interference configuration information based on the CRS network configuration information of the at least one neighboring LTE cell, where the comb anti-interference configuration information includes a comb anti-interference pattern.

Specifically, the base station corresponding to the NR cell may determine, based on the quantity of network ports in the CRS network configuration information of the at least one neighboring LTE cell, at least one time-frequency domain graph corresponding to a CRS interference signal of the at least one LTE cell, where the at least one time-frequency domain graph indicates time domain position distribution and frequency distribution of the CRS interference signal of the at least one neighboring LTE cell; and determine, based on the at least one time-frequency domain graph, one target time-frequency domain graph corresponding to all CRS interference signals of the at least one LTE cell, where the target time-frequency domain graph indicates time domain position distribution and frequency distribution of all the CRS interference signals of the at least one LTE cell.

Specifically, refer to <FIG>, and <FIG>. <FIG> indicates time domain position distribution and frequency distribution of a CRS interference signal of a first LTE cell. Time domain positions at which the CRS interference signal of the first LTE cell is located are <NUM>, <NUM>, <NUM>, and <NUM>, and no CRS interference signal exists at other time domain positions. <FIG> indicates a time-frequency domain graph of a second LTE cell, and describes time domain position distribution and frequency distribution of a CRS interference signal of an LTE neighboring cell <NUM>, where time domain positions at which the CRS interference signal of the LTE neighboring cell <NUM> is located are <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, and <NUM>, and no CRS interference signal exists at other time domain positions. <FIG> indicates time domain position distribution and frequency distribution of all the CRS interference signals of the first LTE cell and the second LTE cell.

Refer to <FIG>. The base station corresponding to the NR cell determines the comb anti-interference pattern based on the target time-frequency domain graph. The comb anti-interference pattern includes a plurality of strip areas, each strip area indicates all frequency areas at a specified time domain position, and the plurality of strip areas include a first area and a second area that are distributed in spacing. The first area is used to carry a service signal of the NR cell, and the second area is used to carry the CRS interference signal of the at least one LTE cell. Specifically, in a first comb anti-interference pattern in <FIG>, a plurality of strip areas whose time domain positions are <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, and <NUM> are a plurality of second areas, and a plurality of strip areas whose time domain positions are <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, and <NUM> are a plurality of first areas. The base station determines, based on a capability of target user equipment, that the comb anti-interference pattern is a comb anti-interference pattern that periodically takes effect.

Specifically, if the base station corresponding to the NR cell determines that a specified time domain position is a time domain position corresponding to the CRS interference signal of the at least one LTE cell, the base station determines that all frequency areas at the time domain position are second areas, namely, rate matching areas, used to carry the CRS interference signal of the at least one LTE cell. If the base station determines that a specified time domain position is different from any time domain position corresponding to the CRS interference signal of the at least one LTE cell, the base station determines that all frequency areas at the time domain position are first areas used to carry the service signal of the NR cell. The base station determines the comb anti-interference pattern based on all the first areas and second areas.

Refer to <FIG> and <FIG>. In a possible implementation, the CRS interference signal of the at least one LTE cell occupies two relatively fixed types of time domain symbol positions: <NUM>, <NUM>, <NUM>, and <NUM> and <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, and <NUM>. Therefore, when only signal interference of one neighboring LTE cell is considered or only one type of time domain symbol positions occupied by the CRS interference signal of the at least one LTE cell is considered, the base station corresponding to the NR cell may quickly determine the comb anti-interference pattern based on the CRS network configuration information of the at least one LTE cell. As shown in <FIG>, when the CRS interference signal of the at least one LTE cell occupies the time domain symbol positions <NUM>, <NUM>, <NUM>, and <NUM>, in other words, the CRS interference signal of the at least one LTE cell is a 2PORT CRS interference signal, the base station corresponding to the NR cell determines that an LTE-CRS 2PORT comb anti-interference pattern is a second comb anti-interference pattern. As shown in <FIG>, when the CRS interference signal of the at least one LTE cell occupies the time domain symbol positions <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, and <NUM>, in other words, the CRS interference signal of the at least one LTE cell is a 4PORT CRS interference signal, the base station corresponding to the NR cell determines that an LTE-CRS 4PORT comb anti-interference pattern is a third comb anti-interference pattern.

The NR cell determines the comb anti-interference configuration information for the target user equipment based on the comb anti-interference pattern. The comb anti-interference configuration information includes the comb anti-interference pattern. The comb anti-interference pattern may be a specific image, or may be information, in another format, that may indicate corresponding content of the comb anti-interference pattern. Specifically, the comb anti-interference configuration information may include an information element RateMatchPattern of RRC signaling. When the LTE-CRS 2PORT anti-interference pattern is configured, ONE SLOT BIT STRING corresponding to RateMatchPattern is configured as <NUM>, or TWO SLOT BIT STRING corresponding to RateMatchPattern is configured as <NUM>. When the LTE-CRS 4PORT anti-interference pattern is configured, ONE SLOT BIT STRING corresponding to RateMatchPattern is configured as STRING: <NUM>, or TWO SLOT BIT STRING corresponding to RateMatchPattern is configured as <NUM>. The RRC standard signaling includes RRCReconfiguration signaling or RRCSetup signaling. In addition, the RRC standard signaling may alternatively be other signaling. This is not specifically limited herein.

Specifically, the comb anti-interference configuration information may include the comb anti-interference pattern and other anti-interference information, where the other anti-interference information indicates other related anti-interference information such as a function of the comb anti-interference pattern, indication information, and how to make the comb anti-interference pattern take effect. The comb anti-interference configuration information may alternatively include only the comb anti-interference pattern. Before sending the comb anti-interference configuration information, the base station and the target user equipment successfully configure other related anti-interference information such as a function of the comb anti-interference pattern, indication information, and how to make the comb anti-interference pattern take effect. This is not specifically limited herein.

Refer to <FIG>. In a possible implementation, when the base station corresponding to the NR cell needs to configure, in the comb anti-interference configuration information for user equipment, additional pilot information for improving a demodulation capability of the user equipment, if the NR cell determines that a time domain position corresponding to an additional pilot is a time domain position used to carry the interference signal in the comb anti-interference pattern, that is, the time domain position belongs to a second area, as shown in <FIG>, the base station uses a first area carrying the service signal to carry the additional pilot information, as shown in <FIG>.

Specifically, when needing to configure the additional pilot for the user equipment, the base station corresponding to the NR cell configures an LTE CRS RateMatch indication in the comb anti-interference configuration information by using the RRC standard signaling. The additional pilot information can be configured in the comb anti-interference configuration information by using the indication. The RRC standard signaling includes an Lte-CRS-ToMatchAround standard information element. The base station corresponding to the NR cell determines that the time domain position corresponding to the additional pilot in the comb anti-interference pattern is <NUM>, and the time domain position <NUM> is a time domain position used to carry the interference signal. In this case, the additional pilot conflicts with the comb anti-interference configuration information. Therefore, when the base station corresponding to the NR cell determines that a first preset condition is met, the base station uses the first area carrying the service signal to carry the additional pilot information, that is, uses a time domain position <NUM> to carry the additional pilot information. The time domain position <NUM> is the first area used to carry the service signal. In this way, the conflict between the additional pilot and the comb anti-interference configuration information is resolved, and the target user equipment may apply the two configurations at the same time.

Specifically, the first preset condition of the base station corresponding to the NR cell includes: (<NUM>) The base station corresponding to the NR cell configures the Lte-CRS-ToMatchAround information element for the target user equipment; (<NUM>) a front-loaded pilot configuration of the target user equipment is POS3, and the additional pilot configuration is POS1; and (<NUM>) the target user equipment supports an additionalDMRS-DL-Alt additional pilot shift capability. In addition, the first preset condition may alternatively be another condition. This is not specifically limited herein.

<NUM>: The base station corresponding to the NR cell sends the comb anti-interference configuration information to the target user equipment.

The NR cell sends the comb anti-interference configuration information to the target user equipment, and correspondingly, the target user equipment receives the comb anti-interference configuration information sent by the NR cell.

<NUM>: The target user equipment makes, based on the comb anti-interference configuration information, the comb anti-interference pattern take effect.

Because the comb anti-interference pattern sent by the base station corresponding to the NR cell to the target user equipment is a periodic comb anti-interference pattern, the target user equipment makes, based on the periodic comb anti-interference pattern in the comb anti-interference configuration information, the comb anti-interference pattern take effect in this periodicity, in other words, uses the first area in the comb anti-interference pattern to carry a service signal between the base station corresponding to the NR cell and the target user equipment.

In this embodiment of this application, the comb anti-interference pattern in the comb anti-interference configuration information sent by the NR cell to the target user equipment is a periodic comb anti-interference pattern, and the comb anti-interference pattern may alternatively be a dynamic comb anti-interference pattern. The following provides specific descriptions.

The comb anti-interference pattern in the comb anti-interference configuration information sent by the base station corresponding to the NR cell to the target user equipment is a dynamic comb anti-interference pattern.

Refer to <FIG>. Another procedure of an anti-interference method for an NR network in this embodiment of this application includes the following steps.

<NUM>: A base station obtains network configuration information of a neighboring LTE cell.

In this embodiment of this application, step <NUM> is the same as step <NUM>, and details are not described herein again. <NUM>: The base station determines comb anti-interference configuration information based on the network configuration information.

In this embodiment of this application, the base station corresponding to an NR cell determines, based on the network configuration information, that a comb anti-interference pattern in the comb anti-interference configuration information is a dynamic comb anti-interference pattern, where the dynamic comb anti-interference pattern is used by user equipment to make, based on an anti-interference enabling instruction sent by the base station corresponding to the NR cell, the dynamic comb anti-interference pattern take effect. Other part of step <NUM> is the same as step <NUM>, and details are not described herein again.

<NUM>: The base station sends the comb anti-interference configuration information to target user equipment.

In this embodiment of this application, step <NUM> is the same as step <NUM>, and details are not described herein again. <NUM>: The target user equipment obtains signal quality information.

The target user equipment obtains the signal quality information of a service signal between the target user equipment and the base station corresponding to the NR cell, where the information indicates quality of the service signal between the target user equipment and the base station corresponding to the NR cell. The signal quality information includes at least one of a synchronization signal block SSB measurement value set or a channel state information-reference signal CSI-RS measurement value set. The SSB measurement value set includes at least one of a cell-level SSB measurement result, a measurement result of each SSB index, an SSB RSRP measurement value, an SSB RSRQ measurement value, and an SSB SINR measurement value. This is not specifically limited herein. The CSI-RS measurement value set includes at least one of a periodic CSI-RS measurement result, a user equipment-level aperiodic CSI-RS measurement result, CSI information, a CSI-RS CQI measurement value, a CSI-RS PMI measurement value, a CSI-RS RI measurement value, a CSI-RS RSRP measurement value, a CSI-RS RSRQ measurement value, and a CSI-RS SINR measurement value. This is not specifically limited herein.

<NUM>: The base station receives the signal quality information sent by the target user equipment.

The target user equipment sends the signal quality information to the base station corresponding to the NR cell, and correspondingly, the base station corresponding to the NR cell receives the signal quality information sent by the target user equipment.

<NUM>: If the base station determines that the signal quality information meets a second preset condition, the base station sends a comb anti-interference enabling instruction to the target user equipment.

If the base station corresponding to the NR cell determines that the signal quality information sent by the target user equipment meets the second preset condition, the base station corresponding to the NR cell sends the comb anti-interference enabling instruction to the target user equipment, where the instruction instructs the target user equipment to make the anti-interference pattern take effect. Correspondingly, the target user equipment receives the comb anti-interference enabling instruction sent by the NR cell.

The second preset condition includes: (<NUM>) One or more of the SSB RSRP measurement value, the SSB RSRQ measurement value, and the SSB SINR measurement value in the signal quality information is less than a first preset indicator; (<NUM>) one or more of the CSI-RS RSRP measurement value, the CSI-RS RSRQ measurement value, and the CSI-RS SINR measurement value in the signal quality information is less than a second preset indicator; (<NUM>) one or more of the CSI-RS CQI measurement value, the CSI-RS PMI measurement value, and the CSI-RS RI measurement value in the signal quality information is less than a third preset indicator; and (<NUM>) after the comb anti-interference pattern takes effect, spectral efficiency of the service signal between the target user equipment and the base station corresponding to the NR cell is higher than a fourth preset indicator. The second preset condition may alternatively be a combination of at least two of the foregoing four conditions. In addition, the second preset condition in this embodiment of this application may alternatively be another preset condition. This is not specifically limited herein. <NUM>: The target user equipment makes, according to the comb anti-interference enabling instruction, the dynamic comb anti-interference pattern take effect.

The target user equipment makes, according to the comb anti-interference enabling instruction sent by the base station corresponding to the NR cell, the dynamic comb anti-interference pattern take effect in this scheduling periodicity, in other words, uses a first area in the comb anti-interference pattern to carry the service signal between the base station corresponding to the NR cell and the target user equipment.

The following describes a base station corresponding to an NR cell in an embodiment of this application. Refer to <FIG>. An embodiment of this application provides a base station <NUM>. The base station may be the base station in <FIG> and <FIG>. The base station <NUM> includes an obtaining unit <NUM>, a determining unit <NUM>, and a first sending unit <NUM>.

The obtaining unit <NUM> is configured to obtain network configuration information of at least one long term evolution LTE cell neighboring to the NR cell. For a specific implementation, refer to step <NUM> in the embodiment shown in <FIG>: A base station corresponding to an NR cell obtains network configuration information of a neighboring LTE cell. In addition, refer to step <NUM> in the embodiment shown in <FIG>: A base station obtains network configuration information of a neighboring LTE cell.

The determining unit <NUM> is configured to determine anti-interference configuration information based on the network configuration information, where the anti-interference configuration information includes an anti-interference pattern, the anti-interference pattern includes a plurality of strip areas, the strip area indicates all frequency areas at a specified time domain position, the plurality of strip areas include at least one first area and at least one second area that are distributed in spacing, the first area is used to carry a service signal of the NR cell, and the second area is used to carry an interference signal of the at least one LTE cell. For a specific implementation, refer to step <NUM> in the embodiment shown in <FIG>: The base station corresponding to the NR cell determines comb anti-interference configuration information based on the network configuration information. In addition, refer to step <NUM> in the embodiment shown in <FIG>: The base station determines comb anti-interference configuration information based on the network configuration information.

The first sending unit <NUM> is configured to send the anti-interference configuration information to target user equipment, where the anti-interference configuration information is used by the target user equipment to select the at least one first area to carry the service signal of the NR cell, and the target user equipment is any user equipment in a coverage area of the NR cell. For a specific implementation, refer to step <NUM> in the embodiment shown in <FIG>: The base station corresponding to the NR cell sends the comb anti-interference configuration information to the target user equipment. In addition, refer to step <NUM> in the embodiment shown in <FIG>: The base station sends the comb anti-interference configuration information to target user equipment.

In a possible implementation, the determining unit <NUM> is specifically configured to:
determine, from a time domain range of the base station based on the network configuration information, a time domain position of the at least one second area used to carry the interference signal of the at least one LTE cell, where the time domain position of the second area is included in a time domain position of the base station, the time domain position of the at least one second area is used to determine a time domain position of the at least one first area, and the time domain positions of the at least one second area and the at least one first area are used to determine the anti-interference configuration information.

For a specific implementation, refer to step <NUM> in the embodiment shown in <FIG>: The base station corresponding to the NR cell determines comb anti-interference configuration information based on the network configuration information. In addition, refer to step <NUM> in the embodiment shown in <FIG>: The base station determines comb anti-interference configuration information based on the network configuration information.

In a possible implementation, the base station further includes a receiving unit <NUM> and a second sending unit <NUM>.

The receiving unit <NUM> is configured to receive signal quality information sent by the target user equipment, where the signal quality information indicates quality of a service signal provided by the base station for the target user equipment. For a specific implementation, refer to step <NUM> shown in <FIG>: The base station receives the signal quality information sent by the target user equipment.

The second sending unit <NUM> is configured to: if the base station determines that the signal quality information meets a preset condition, send an anti-interference enabling instruction to the target user equipment, where the anti-interference enabling instruction instructs the target user equipment to make the anti-interference pattern take effect. For a specific implementation, refer to step <NUM> shown in <FIG>: If the base station determines that the signal quality information meets a second preset condition, the base station sends a comb anti-interference enabling instruction to the target user equipment.

In a possible implementation, the determining unit <NUM> is further specifically configured to:
if the base station determines that a time domain position corresponding to additional pilot information belongs to the second area, use the first area to carry the additional pilot information.

In a possible implementation, the base station corresponding to the NR cell and a base station corresponding to the at least one LTE cell are a same base station, the network configuration information of the at least one LTE cell is stored in the base station corresponding to the at least one LTE cell, and the obtaining unit <NUM> is specifically configured to:
extract the network configuration information that is of the at least one LTE cell neighboring to the NR cell and that is stored in the base station.

For a specific implementation, refer to step <NUM> in the embodiment shown in <FIG>: A base station corresponding to an NR cell obtains network configuration information of a neighboring LTE cell. In addition, refer to step <NUM> in the embodiment shown in <FIG>: A base station obtains network configuration information of a neighboring LTE cell.

In a possible implementation, the base station corresponding to the NR cell and a base station corresponding to the at least one LTE cell are not a same base station, the CRS network configuration information of the at least one LTE cell is stored in the base station corresponding to the at least one LTE cell, and the obtaining unit <NUM> is specifically configured to:
obtain the CRS network configuration information of the at least one LTE cell through signaling interaction with the base station corresponding to the at least one LTE cell. The base station corresponding to the NR cell and the base station corresponding to the at least one LTE cell may obtain the CRS network configuration information of the at least one LTE cell by querying a configuration of an inter-RAT neighboring cell. For a specific implementation, refer to step <NUM> in the embodiment shown in <FIG>: A base station corresponding to an NR cell obtains network configuration information of a neighboring LTE cell. In addition, refer to step <NUM> in the embodiment shown in <FIG>: A base station obtains network configuration information of a neighboring LTE cell.

The following describes target user equipment in an embodiment of this application. Refer to <FIG>. An embodiment of this application provides target user equipment <NUM>. The target user equipment may be the target user equipment in <FIG> and <FIG>. The target user equipment <NUM> includes a first receiving unit <NUM> and an effective unit <NUM>. The first receiving unit <NUM> is configured to receive anti-interference configuration information sent by a base station corresponding to a new radio NR cell, where the anti-interference configuration information includes an anti-interference pattern, the anti-interference pattern includes a plurality of strip areas, the strip area indicates all frequency areas at a specified time domain position, the plurality of strip areas include at least one first area and at least one second area that are distributed in spacing, the first area is used to carry a service signal of the NR cell, the second area is used to carry an interference signal of at least one LTE cell, and the anti-interference configuration information is used by the target user equipment to select the at least one first area to carry the service signal of the NR cell. For a specific implementation, refer to step <NUM> in the embodiment shown in <FIG>: The base station corresponding to the NR cell sends the comb anti-interference configuration information to the target user equipment. In addition, refer to step <NUM> in the embodiment shown in <FIG>: The base station sends the comb anti-interference configuration information to target user equipment.

The effective unit <NUM> is configured to make, based on the anti-interference configuration information, the anti-interference pattern take effect. For a specific implementation, refer to step <NUM> in the embodiment shown in <FIG>: The target user equipment makes, based on the comb anti-interference configuration information, the comb anti-interference pattern take effect.

In a possible implementation, the target user equipment further includes a sending unit <NUM> and a receiving unit <NUM>. The sending unit <NUM> is configured to send signal quality information to the base station, where the signal quality information is used by the base station to send an anti-interference instruction to the target user equipment based on the signal quality information. For a specific implementation, refer to step <NUM> shown in <FIG>: The base station receives the signal quality information sent by the target user equipment.

The receiving unit <NUM> is configured to receive the anti-interference enabling instruction sent by the base station, where the anti-interference enabling instruction instructs the target user equipment to make, based on the anti-interference configuration information, the anti-interference pattern take effect. For a specific implementation, refer to step <NUM> shown in <FIG>: If the base station determines that the signal quality information meets a second preset condition, the base station sends a comb anti-interference enabling instruction to the target user equipment.

<FIG> is a schematic structural diagram of a base station according to an embodiment of this application. The base station <NUM> may include one or more central processing units (central processing units, CPU) <NUM> and a memory <NUM>. The memory <NUM> stores one or more application programs or data.

The memory <NUM> may be a volatile memory or a persistent memory. The program stored in the memory <NUM> may include one or more modules, and each module may include a series of instruction operations for the base station. Further, the central processing unit <NUM> may be configured to: communicate with the memory <NUM>, and perform, on the base station <NUM>, a series of instruction operations in the memory <NUM>.

The central processing unit <NUM> is configured to execute the computer program in the memory <NUM>, so that the base station <NUM> is configured to perform the following steps: The base station obtains network configuration information of at least one long term evolution LTE cell neighboring to an NR cell; the base station determines anti-interference configuration information based on the network configuration information, where the anti-interference configuration information includes an anti-interference pattern, the anti-interference pattern includes a plurality of strip areas, the strip area indicates all frequency areas at a specified time domain position, the plurality of strip areas include at least one first area and at least one second area that are distributed in spacing, the first area is used to carry a service signal of the NR cell, and the second area is used to carry an interference signal of the at least one LTE cell; and the base station sends the anti-interference configuration information to target user equipment, where the anti-interference configuration information is used by the target user equipment to select the at least one first area to carry the service signal of the NR cell, and the target user equipment is any user equipment in a coverage area of the NR cell. For a specific implementation, refer to steps <NUM> to <NUM> in the embodiment shown in <FIG> and steps <NUM> to <NUM> in the embodiment shown in <FIG>.

The base station <NUM> may further include one or more power supplies <NUM>, one or more wired or wireless network interfaces <NUM>, one or more input/output interfaces <NUM>, and/or one or more operating systems, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, and FreeBSDTM.

The base station <NUM> may perform the operations performed by the base station in embodiments shown in <FIG> and <FIG>.

<FIG> is a schematic structural diagram of target user equipment according to an embodiment of this application. The target user equipment <NUM> may include one or more central processing units (central processing units, CPU) <NUM> and a memory <NUM>. The memory <NUM> stores one or more application programs or data.

The memory <NUM> may be a volatile memory or a persistent memory. The program stored in the memory <NUM> may include one or more modules, and each module may include a series of instruction operations for the target user equipment. Further, the central processing unit <NUM> may be configured to: communicate with the memory <NUM>, and perform, on the target user equipment <NUM>, a series of instruction operations in the memory <NUM>.

The central processing unit <NUM> is configured to execute the computer program in the memory <NUM>, so that the target user equipment <NUM> is configured to perform the following steps: The target user equipment receives anti-interference configuration information sent by a base station corresponding to a new radio NR cell, where the anti-interference configuration information includes an anti-interference pattern, the anti-interference pattern includes a plurality of strip areas, the strip area indicates all frequency areas at a specified time domain position, the plurality of strip areas include at least one first area and at least one second area that are distributed in spacing, the first area is used to carry a service signal of the NR cell, the second area is used to carry an interference signal of at least one LTE cell, and the anti-interference configuration information is used by the target user equipment to select the at least one first area to carry the service signal of the NR cell; and the target user equipment makes, based on the anti-interference configuration information, the anti-interference pattern take effect. For a specific implementation, refer to steps <NUM> to <NUM> in the embodiment shown in <FIG> and steps <NUM> to <NUM> in the embodiment shown in <FIG>.

The target user equipment <NUM> may further include one or more power supplies <NUM>, one or more wired or wireless network interfaces <NUM>, one or more input/output interfaces <NUM>, and/or one or more operating systems, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, and FreeBSDTM.

The target user equipment <NUM> may perform operations performed by the target user equipment in embodiments shown in <FIG> and <FIG>.

The following describes a new radio NR network system in an embodiment of this application. Refer to <FIG>. An embodiment of this application provides a new radio NR network system <NUM>. The system includes the base station <NUM> in the embodiment shown in <FIG> and the target user equipment <NUM> in the embodiment shown in <FIG>. The base station <NUM> is connected to the target user equipment <NUM>.

The system may perform operations performed by the new radio NR network system in the embodiment shown in any one of <FIG> and <FIG>. For a specific implementation, refer to steps <NUM> to <NUM> in the embodiment shown in <FIG> and steps <NUM> to <NUM> in the embodiment shown in <FIG>.

For example, division into the units is merely logical function division and may be other division during actual implementation.

Claim 1:
An anti-interference method for a new radio network, wherein the method comprises:
obtaining (<NUM>, <NUM>), by a base station corresponding to a new radio NR cell, network configuration information of at least one long term evolution LTE cell neighboring to the NR cell;
determining (<NUM>, <NUM>), by the base station, anti-interference configuration information based on the network configuration information, wherein the anti-interference configuration information comprises an anti-interference pattern, the anti-interference pattern comprises a plurality of strip areas in time-frequency domain, the strip area indicates all frequency areas at a specified time domain position, the plurality of strip areas comprise at least one first area and at least one second area that are distributed in a non-overlapping manner in the time-frequency space, the first area is used to carry a service signal of the NR cell, and the second area is used to carry an interference signal of the at least one LTE cell; and
sending (<NUM>, <NUM>), by the base station, the anti-interference configuration information to target user equipment, wherein the anti-interference configuration information is used by the target user equipment to select the at least one first area to carry the service signal of the NR cell, and the target user equipment is any user equipment in a coverage area of the NR cell;
wherein after the sending (<NUM>, <NUM>), by the base station, the anti-interference configuration information to target user equipment, the method further comprises:
receiving (<NUM>), by the base station, signal quality information sent by the target user equipment, wherein the signal quality information indicates quality of a service signal provided by the base station for the target user equipment; and
if the base station determines that the signal quality information meets a preset condition, sending (<NUM>), by the base station, an anti-interference enabling instruction to the target user equipment, wherein the anti-interference enabling instruction instructs the target user equipment to make the anti-interference pattern take effect.