Communications method and apparatus
First Claim
1. A communications method, comprising:
- acquiring, by a mobility management entity, information of a user equipment device;
determining, by the mobility management entity according to the information of the user equipment device, that the user equipment device is a power-saving user equipment device;
upon determining that the user equipment device is a power-saving user equipment device, generating, by the mobility management entity, a first indication comprising an instruction to retain first data, wherein the first data is downlink data of the user equipment device; and
sending, by the mobility management entity, the first indication to a data forwarding entity to instruct the data forwarding entity to retain the first data;
receiving, by the data forwarding entity, the first indication from the mobility management entity; and
retaining, by the data forwarding entity, the first data according to the first indication.
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Abstract
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 (S101); determining, by the MME according to the information, whether the UE satisfies a first preset condition (S102); 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 (S103); and sending, by the MME, the first indication to the SGW.
14 Citations
14 Claims
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1. A communications method, comprising:
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acquiring, by a mobility management entity, information of a user equipment device; determining, by the mobility management entity according to the information of the user equipment device, that the user equipment device is a power-saving user equipment device; upon determining that the user equipment device is a power-saving user equipment device, generating, by the mobility management entity, a first indication comprising an instruction to retain first data, wherein the first data is downlink data of the user equipment device; and sending, by the mobility management entity, the first indication to a data forwarding entity to instruct the data forwarding entity to retain the first data; receiving, by the data forwarding entity, the first indication from the mobility management entity; and retaining, by the data forwarding entity, the first data according to the first indication. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A communications system comprising:
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a mobility management entity, configured to; acquire information of a user equipment device, determine, according to the information of the user equipment device, that the user equipment device is a power-saving user equipment device; upon determining that the user equipment device is a power-saving user equipment device, generate a first indication comprising an instruction to retain first data, wherein the first data is downlink data of the user equipment device; and send the first indication to a data forwarding entity to instruct the data forwarding entity to retain the first data; and the data forwarding entity, configured to; receive the first indication from the mobility management entity; and retain the first data according to the first indication. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification