Communication method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorQiang Fan
Life of this patent
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Abstract
A first protocol layer in a first communication apparatus obtains first indication information and sends the first indication information to a first protocol layer in a second communication apparatus when a discard timer corresponding to a first data packet expires. The first indication information may indicate that the first data packet is no longer transmitted. The first protocol layer in the first communication apparatus directly indicates, to the first protocol layer in the second communication apparatus, a data packet that is no longer transmitted.
Claims18
A communication method, applied to a first protocol layer in a first communication apparatus, the method comprising:
- obtaining first indication information that indicates that a first data packet is no longer transmitted;
- and
- sending the first indication information to the first protocol layer in a second communication apparatus when a discard timer corresponding to a first data packet expires, wherein the first protocol layer supports at least a segmentation and reassembly function.
A communication method, applied to a first protocol layer in a second communication apparatus, the method comprising:
- receiving first indication information from the first protocol layer in a first communication apparatus, wherein the first indication information indicates that a first data packet is no longer transmitted;
- and
- updating a second variable of a receiving window based on the first indication information, wherein an updated second variable is greater than or equal to a sequence number of a data packet that is in the receiving window, that is not completely received, and that is not indicated by the first communication apparatus as being no longer transmitted, and the second variable is a lower edge of the receiving window.
A first communication apparatus, comprising:
- at least one processor;
- and
- a memory coupled to the at least one processor, wherein the memory comprises instructions that, when executed by the at least one processor, cause the first communication apparatus to:
- obtain first indication information that indicates that a first data packet is no longer transmitted;
- and
- send, from a first protocol layer of the first communication apparatus, first indication information to the first protocol layer in a second communication apparatus when a discard timer corresponding to a first data packet expires, wherein the first protocol layer supports at least a segmentation and reassembly function.
The apparatus according to 13, wherein the first indication information further indicates that a data packet having a sequence number less than the updated first variable is no longer transmitted.
Dependencies are inferred from the claim text.