17-01-2019 дата публикации
Номер: US20190021056A1
Embodiments of the present invention relate to the field of communications, and provide a communications method and apparatus, which can solve a problem in the prior art that, in order to save power, when a mobility management entity (MME) delays delivering a paging message or a UE uses a long discontinuous reception (DRX) period, an exception may occur in a serving gateway (SGW). The method includes: acquiring, by an MME, information of a UE (S); determining, by the MME according to the information, whether the UE satisfies a first preset condition (S); if the UE satisfies the first preset condition, generating, by the MME, a first indication, where the first indication is used for instructing an SGW to retain first data or discard first data, and the first data is downlink data of the UE (S); and sending, by the MME, the first indication to the SGW. 1. A communications method , comprising:acquiring, by a mobility management entity (MME), information of a user equipment device (UE);determining, by the MME according to the information of the UE, that the UE is a power-saving UE;upon determining that the UE is a power-saving UE, generating, by the MME, a first indication comprising an instruction to retain first data, wherein the first data is downlink data of the UE; andsending, by the MME, the first indication to a serving gateway (SGW) to instruct the SGW to retain the first data;receiving, by the SGW, the first indication from the MME; andretaining, by the SGW, the first data according to the first indication.2. The communications method according to wherein:the first indication comprises a first paging delaying instruction and a first suggested waiting time, and is used for instructing the SGW to retain the first data within the first suggested waiting time after the SGW determines, according to the first paging delaying instruction, that the MME needs to delay paging the UE.3. The communications method according to claim 1 , wherein acquiring claim 1 , by the ...
Подробнее