Embodiments of the disclosed techniques include methods for remote interference management (RIM) implemented in a network device in charge of management in a wireless network. In one embodiment, a method includes receiving messages from a set of base stations, wherein each message from abase station of the set of base stations indicates that the base station is interfered. The method further includes grouping the set of base stations into a set of reference signal groups based on the messages, each reference signal group being mapped to a reference signal group identifier; and the method continues with sending a respectively mapped reference signal group identifier to each of the set of base stations. Embodiments of the invention also include methods to group base stations causing the interference.

Embodiments of the disclosed techniques include methods for remote interference management (RIM) implemented in a network device in charge of management in a wireless network. In one embodiment, a method includes receiving messages from a set of base stations, wherein each message from abase station of the set of base stations indicates that the base station is interfered. The method further includes grouping the set of base stations into a set of reference signal groups based on the messages, each reference signal group being mapped to a reference signal group identifier; and the method continues with sending a respectively mapped reference signal group identifier to each of the set of base stations. Embodiments of the invention also include methods to group base stations causing the interference.

A communication device 1 determines, between a first physical channel and a second physical channel of the communication device 1, an accommodation state of a session in a wireless resource of the first physical channel. The communication device 1 issues an instruction of changing a part of the wireless resource of the first physical channel to a wireless resource of the second physical channel, based on the above-mentioned accommodation state.

A communication device 1 determines, between a first physical channel and a second physical channel of the communication device 1, an accommodation state of a session in a wireless resource of the first physical channel. The communication device 1 issues an instruction of changing a part of the wireless resource of the first physical channel to a wireless resource of the second physical channel, based on the above-mentioned accommodation state.

Systems and methods for facilitating the mitigation of interference in the uplink of a small cell caused by macrocell user equipment in the case where the macrocell cannot identify the interfering macrocell user equipment because the user equipment cannot detect and report the small cell's downlink due to the small cell's uplink/downlink coverage imbalance. In an embodiment, the small cell provides the macrocell with a notification of the interference, the configuration information about its Physical Random Access Channel (PRACH), and a plurality of unique preambles and transmission times for non-contention-based transmissions on the small cell's PRACH. The macrocell orders each of one or a plurality of macrocell user equipment to transmit one of the unique preambles on the small cell's PRACH. The small cell reports to the macrocell the detected preamble transmissions, which allows the macrocell to identify interfering user equipment and perform corrective actions.

Systems and methods for facilitating the mitigation of interference in the uplink of a small cell caused by macrocell user equipment in the case where the macrocell cannot identify the interfering macrocell user equipment because the user equipment cannot detect and report the small cell's downlink due to the small cell's uplink/downlink coverage imbalance. In an embodiment, the small cell provides the macrocell with a notification of the interference, the configuration information about its Physical Random Access Channel (PRACH), and a plurality of unique preambles and transmission times for non-contention-based transmissions on the small cell's PRACH. The macrocell orders each of one or a plurality of macrocell user equipment to transmit one of the unique preambles on the small cell's PRACH. The small cell reports to the macrocell the detected preamble transmissions, which allows the macrocell to identify interfering user equipment and perform corrective actions.

A guard period determining method includes: determining a first guard period for at least one switching scenario of an IAB node. The at least one switching scenario is a switching scenario including switching of a multiplexed link state, and the multiplexed link state includes one of: a link state of both DU transmit and MT transmit; a link state of both DU receive and MT receive; a link state of MT transmit and DU receive; or a link state of MT receive and DU transmit.

A guard period determining method includes: determining a first guard period for at least one switching scenario of an IAB node. The at least one switching scenario is a switching scenario including switching of a multiplexed link state, and the multiplexed link state includes one of: a link state of both DU transmit and MT transmit; a link state of both DU receive and MT receive; a link state of MT transmit and DU receive; or a link state of MT receive and DU transmit.

The present invention provides a method for resisting small base station uplink signal interference of an indoor DAS based on antenna selection. The method comprises: step 1: determining an initial access RU, and establishing an uplink; step 2: determining, by the access RU of UE 1 on the basis of the level of interference, whether to switch to another RU, and continuously detecting, by the access RU of UE 1 an SINR value at a set time interval, and comparing the SINR with a preset threshold value γ1; wherein if the SINR value is lower than γ1, an MU sets the access RU and each peripheral RU as a candidate RU, and the MU, on the basis of the acquired SINR value of each RU, selects an SINR greater than γ1 and sets the RU having the greatest receiving signal power as the new access RU of UE 1.

The present invention provides a method for resisting small base station uplink signal interference of an indoor DAS based on antenna selection. The method comprises: step 1: determining an initial access RU, and establishing an uplink; step 2: determining, by the access RU of UE 1 on the basis of the level of interference, whether to switch to another RU, and continuously detecting, by the access RU of UE 1 an SINR value at a set time interval, and comparing the SINR with a preset threshold value γ1; wherein if the SINR value is lower than γ1, an MU sets the access RU and each peripheral RU as a candidate RU, and the MU, on the basis of the acquired SINR value of each RU, selects an SINR greater than γ1 and sets the RU having the greatest receiving signal power as the new access RU of UE 1.