Communication method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsChuting Yao, Ao Guo
Life of this patent
Estimating the term…
Abstract
A communication method includes a terminal device sending M compressed data packets. The M compressed data packets are obtained by compressing M data packets based on a first buffer. The terminal device reestablishes a PDCP layer without resetting the first buffer. The terminal device then sends N compressed data packets. The N compressed data packets are a part or all of the M compressed data packets. When reestablishing the PDCP layer, the terminal device does not reset the first buffer. In this case, if the terminal device needs to retransmit a data packet, the terminal device may retransmit a previously obtained compressed data packet, and does not need to compress the data packet again.
Claims20
A method applied to a terminal device or chip for the terminal device, and comprising:
- obtaining M compressed data packets by compressing M data packets based on a first buffer, wherein M is a positive integer;
- sending the M compressed data packets;
- receiving a first indication information and a second indication information, wherein the first indication information indicates to reestablish a packet data convergence protocol layer, and wherein the second indication information indicates to continue to use the first buffer;
- reestablishing the packet data convergence protocol layer without resetting the first buffer;
- and
- sending N compressed data packets,
- wherein the N compressed data packets are at least a portion of the M compressed data packets, and
- wherein N is a positive integer less than or equal to M.
A method applied to a first network device or a chip for the first network device, and comprising:
- receiving K compressed data packets from a terminal device, wherein the K compressed data packets are based on compression of K data packets and based on a first buffer, and wherein K is a positive integer;
- sending a first indication information and a second indication information, wherein the first indication information indicates the terminal device to reestablish a packet data convergence protocol layer, and wherein the second indication information indicates the terminal device to continue to use the first buffer;
- reestablishing the packet data convergence protocol layer without resetting a second buffer;
- and
- decompressing, using the second buffer, one of the K compressed data packets.
A communication apparatus comprising:
- at least one processor;
- and
- at least one memory coupled to the at least one processor and storing programming instructions for execution by the at least one processor to:
- obtain M compressed data packets by compressing M data packets based on a first buffer, wherein M is a positive integer;
- send the M compressed data packets;
- receive a first indication information and a second indication information, wherein the first indication information indicates to reestablish a packet data convergence protocol layer, and wherein the second indication information indicates to continue to use the first buffer;
- reestablish the packet data convergence protocol layer without resetting the first buffer;
- and
- send N compressed data packets,
- wherein the N compressed data packets are at least a portion of the M compressed data packets, and
- wherein N is a positive integer less than or equal to M.
Dependencies are inferred from the claim text.