Communication method and communications apparatus
摘要
說明書
Specifically, when the plurality of handover condition thresholds are configured by using the configuration information, it indicates that a handover trigger condition provided by the network device may be multi-level. In a possible implementation, different levels of quality of the serving cell correspond to different handover condition thresholds. Correspondingly, different requirements are imposed on the quality of the candidate target cell. For example, using the event A5 as an example, two pairs of thresholds, for example, {P1, P2} and {P1′, P2′}, are provided, where P1<P1′ and P2<P2′. To be specific, when the quality of the serving cell is relatively poor (for example, when the quality of the serving cell is less than a threshold X, where the threshold X may be predetermined or may be included in the configuration information), a relatively low requirement may be imposed on the quality of the candidate target cell that triggers the handover condition, and the target cell may be determined by using the threshold {P1, P2}. When the quality of the serving cell is relatively good (for example, when the quality of the serving cell is greater than the threshold X), a relatively high requirement is imposed on the quality of the candidate target cell that triggers the handover condition, and the threshold {P1′, P2′} may be used. In another possible implementation, different levels of quality of the serving cell may correspond to a same handover condition threshold. That is, a same requirement is imposed on the quality of the candidate target cell. For example, using the event A5 as an example, two pairs of thresholds, for example, {P1, P2} and {P1′, P2′}, are provided, where P1<P1′ and P2<P2′. To be specific, when the quality of the serving cell is relatively poor (for example, when the quality of the serving cell is less than a threshold Y, or when the quality of the serving cell is greater than a threshold Y and less than a threshold Z, where the threshold Y and the threshold Z may be predetermined or may be included in the configuration information), a relatively low requirement may be imposed on the quality of the candidate target cell that triggers the handover condition, and the target cell may be determined by using the threshold {P1, P2}. When the quality of the serving cell is relatively good (for example, when the quality of the serving cell is greater than the threshold Z), a relatively high requirement is imposed on the quality of the candidate target cell that triggers the handover condition, and the threshold {P1′, P2′} may be used. Alternatively, in another possible implementation, a same level of quality of the serving cell may correspond to a plurality of different handover condition thresholds. That is, different requirements may be imposed on the quality of the candidate target cell. For example, using the event A5 as an example, three pairs of thresholds, for example, {P1, P2}, {P1′, P2′}, and {P1″, P2″ }, are provided, where P1<P1′<P1″ and P2<P2′<P2″. To be specific, when the quality of the serving cell is relatively poor (for example, when the quality of the serving cell is less than a threshold R, where the threshold R may be predetermined or may be included in the configuration information), different requirements may be imposed on the quality of the candidate target cell that triggers the handover condition, and the target cell may be determined by using the threshold {P1, P2} or the threshold {P1′, P2′}. When the quality of the serving cell is relatively good (for example, when the quality of the serving cell is greater than the threshold R), a relatively high requirement is imposed on the quality of the candidate target cell that triggers the handover condition, and the threshold {P1″, P2″ } may be used.
