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US 12,739,060 B2Granted
Packet loss indication method and related device
AssigneeHuawei Technologies Co., Ltd.
InventorsChenwan Li, Feng Yu
Life of this patent
Estimating the term…
Abstract
In a packet loss indication method, a user plane function (UPF) entity receives first indication information from a first base station, where the first indication information indicates that a first data packet was unsuccessfully sent, and that the first data packet was unsuccessfully sent includes that the UPF entity unsuccessfully sent the first data packet to the first base station or the first base station unsuccessfully sent the first data packet to a first terminal device. Second indication information is sent to a second base station, where the second indication information indicates that the first data packet was unsuccessfully sent.
Claims14
A packet loss indication method, comprising:
- receiving, by a core network device, first indication information from a first base station, wherein the first indication information indicates that a first data packet was unsuccessfully sent, and that the first data packet was unsuccessfully sent comprises that the core network device unsuccessfully sent the first data packet to the first base station or the first base station unsuccessfully sent the first data packet to a first terminal device;
- sending, by the core network device, second indication information to a second base station, wherein the second indication information indicates that the first data packet was unsuccessfully sent;
- and
- sending, by the core network device, a third data packet to the first base station,
- wherein the third data packet comprises at least one serial number which is carried in a header or a data payload of the third data packet, and the third data packet indicates that at least one data packet corresponding to the at least one serial number was unsuccessfully sent, or
- wherein the third data packet comprises fourth indication information, and the fourth indication information indicates:
- that a previous data packet of the third data packet was unsuccessfully sent,
- a serial number of a data packet that was unsuccessfully sent before the third data packet,
- a quantity of data packets that were unsuccessfully sent accumulatively before the third data packet, or
- a quantity of data packets that were unsuccessfully sent consecutively before the third data packet.
7 more elements
A communication apparatus, comprising:
- at least one processor;
- and
- a memory coupled to the at least one processor and configured to store instructions executable by the at least one processor to cause the communication apparatus to:
- determine that a core network device unsuccessfully sent a first data packet to the apparatus, or that the apparatus unsuccessfully sent a first data packet to a first terminal device;
- and
- send first indication information to the core network device, wherein the first indication information indicates that the first data packet was unsuccessfully sent,
- wherein the instructions are executable by the at least one processor to further cause the apparatus to receive a third data packet from the core network device, and
- wherein the third data packet comprises:
- at least one serial number which is carried in a header or a data payload of the third data packet, and the third data packet indicates that at least one data packet corresponding to the at least one serial number was unsuccessfully sent, or
- fourth indication information, and the fourth indication information indicates:
- that a previous data packet of the third data packet was unsuccessfully sent,
- a serial number of a data packet that was unsuccessfully sent before the third data packet,
- a quantity of data packets that were unsuccessfully sent accumulatively before the third data packet, or
- a quantity of data packets that were unsuccessfully sent consecutively before the third data packet.
11 more elements
A communication apparatus, comprising:
- at least one processor;
- and
- a memory coupled to the at least one processor and configured to store instructions executable by the at least one processor to cause the communication apparatus to:
- receive second indication information from a core network device, wherein the second indication information indicates that a first data packet was unsuccessfully sent, and that the first data packet was unsuccessfully sent comprises that the core network device unsuccessfully sent the first data packet to a first base station or the first base station unsuccessfully sent the first data packet to a first terminal device, and
- send a sixth data packet to the core network device,
- wherein the sixth data packet comprises at least one serial number which is carried in a header or a data payload of the sixth data packet, and the sixth data packet indicates that at least one data packet corresponding to the at least one serial number was unsuccessfully sent, or
- wherein the sixth data packet comprises fourth indication information, and the fourth indication information indicates:
- that a previous data packet of the sixth data packet was unsuccessfully sent,
- a serial number of a data packet that was unsuccessfully sent before the sixth data packet,
- a quantity of data packets that were unsuccessfully sent accumulatively before the sixth data packet, or
- a quantity of data packets that were unsuccessfully sent consecutively before the sixth data packet.
8 more elements
Dependencies are inferred from the claim text.