Communication method and communication device

Abstract

Provided is a communication device, capable of accurately obtaining a time delay between devices. The communication device comprises: a processor, configured to add time indication information into a sending packet, the time indication information is configured for a receiver to acquire a latency from the communication device to the receiver; and a transceiver, configured to transmit the sending packet to the receiver.

1 .- 27 . (canceled) 
     
     
         28 . A communication device, comprising:
 a processor, configured to add time indication information into a sending packet, wherein the time indication information is configured for a receiver to acquire a latency from the communication device to the receiver; and   a transceiver, configured to transmit the sending packet to the receiver.   
     
     
         29 . The communication device according to  claim 28 , wherein the sending packet is a Packet Data Convergence Protocol (PDCP) packet, a Radio Link Control (RLC) packet or a Media Access Control (MAC) packet; or
 the sending packet is a data packet or a probing packet dedicated for latency detection.   
     
     
         30 . The communication device according to  claim 28 , wherein the time indication information comprises a starting time of processing the sending packet by the communication device or comprises a processing latency of processing the sending packet by the communication device. 
     
     
         31 . The communication device according to  claim 28 , wherein
 the processor is further configured to determine Quality of Service (QoS) of a service corresponding to the latency from the communication device to the receiver to be acquired; and   the transceiver is specifically configured to transmit the sending packet to the receiver according to the corresponding QoS.   
     
     
         32 . The communication device according to  claim 28 , wherein the transceiver is specifically configured to:
 transmit the sending packet to the receiver through multiple paths; or   transmit the sending packet to the receiver through a Uu interface or a Device to Device (D2D) interface.   
     
     
         33 . (canceled) 
     
     
         34 . The communication device according to  claim 28 , wherein the sending packet further comprises at least one of a latency requirement, a receiver list or a feedback object. 
     
     
         35 . The communication device according to  claim 28 , wherein the transceiver is further configured to:
 receive a feedback message from the receiver, wherein the feedback message is configured to indicate the latency from the communication device to the receiver or indicate whether the latency from the communication device to the receiver meets a latency requirement.   
     
     
         36 . The communication device according to  claim 28 , wherein the transceiver is further configured to:
 receive configuration information sent by a third-party entity, wherein the configuration information is configured to instruct the communication device to transmit the sending packet comprising the time indication information to the receiver.   
     
     
         37 . (canceled) 
     
     
         38 . A communication device, comprising:
 a transceiver, configured to receive a sending packet sent by a transmitter, wherein the sending packet comprises time indication information; and   a processor, configured to determine a latency from the transmitter to the communication device according to the time indication information.   
     
     
         39 . (canceled) 
     
     
         40 . The communication device according to  claim 38 , wherein the time indication information comprises a starting time of processing the sending packet by the transmitter; and
 the processor is specifically configured to determine an ending time of processing the sending packet by the transmitter and determine the latency from the transmitter to the communication device according to a difference between the ending time and the starting time.   
     
     
         41 . The communication device according to  claim 38 , wherein the time indication information comprises a processing latency of processing the sending packet by the transmitter, a processing latency of processing the sending packet by an intermediate node between the transmitter and the communication device and a transmission latency between the intermediate node and a previous node of the intermediate node, the transmission latency being acquired by the intermediate node; and
 the processor is specifically configured to: determine a processing latency of processing the sending packet by the communication device and a transmission latency between the communication device and a previous node of the communication device, and determine the latency from the transmitter to the communication device according to a sum of the processing latency of processing the sending packet by the transmitter, the processing latency of processing the sending packet by the intermediate node between the transmitter and the communication device, the transmission latency between the intermediate node and the previous node of the intermediate node, the processing latency of processing the sending packet by the communication device and the transmission latency between the communication device and the previous node of the communication device.   
     
     
         42 . The communication device according to  claim 41 , wherein processing latency of processing the sending packet by different nodes are carried in different information fields of the sending packet, transmission latency between different nodes and respective previous nodes of the different nodes are carried in different information fields of the sending packet, the transmission latency being acquired by different nodes, and the processing latency and the transmission latency acquired by the same node are carried in different information fields of the sending packet. 
     
     
         43 . The communication device according to  claim 38 , wherein the time indication information comprises a processing latency of processing the sending packet by the transmitter and a sum of a processing latency of processing the sending packet by an intermediate node between the transmitter and the communication device and an acquired transmission latency between the intermediate node and a previous node of the intermediate node;
 the processor is specifically configured to: determine a processing latency of processing the sending packet by the communication device and a transmission latency between the communication device and a previous node of the communication device, and determine the latency from the transmitter to the communication device according to a sum of the processing latency of processing the sending packet by the transmitter, the sum of the processing latency of processing the sending packet by the intermediate node and the acquired transmission latency between the intermediate node and the previous node of the intermediate node, the processing latency of processing the sending packet by the communication device and the transmission latency between the communication device and the previous node of the communication device;   wherein sums of the processing latency of processing the sending packet by different nodes and the acquired transmission latency between different nodes and respective previous nodes of the different nodes are carried in different information fields of the sending packet.   
     
     
         44 . (canceled) 
     
     
         45 . The communication device according to  claim 38 , wherein the time indication information comprises a sum of a processing latency of processing the sending packet by the transmitter, a processing latency of processing the sending packet by an intermediate node between the transmitter and the communication device and a transmission latency between the intermediate node and a previous node of the intermediate node;
 the processor is specifically configured to: determine a processing latency of processing the sending packet by the communication device and a transmission latency between a previous node of the communication device and the communication device, and determine the latency from the transmitter and the communication device according to a sum of the processing latency of processing the sending packet by the receiver, the transmission latency between the previous node of the communication device and the communication device, and the sum of the processing latency of processing the sending packet by the transmitter, the processing latency of processing the sending packet by the intermediate node between the transmitter and the communication device and the transmission latency between the intermediate node and the previous node of the intermediate node.   
     
     
         46 . The communication device according to  claim 38 , wherein the latency comprises a synchronization time offset between the transmitter and the communication device;
 wherein the processor is further configured to:   calculate the synchronization time offset between the transmitter and the communication device according to synchronization time offsets of adjacent nodes prior to the communication device and a synchronization time offset between the previous node of the communication device and the communication device, wherein the synchronization time offsets are recorded in the time indication information.   
     
     
         47 . (canceled) 
     
     
         48 . The communication device according to  claim 38 , wherein
 the transceiver is specifically configured to receive the sending packet sent by the transmitter through multiple paths; and   the processor is specifically configured to determine a latency of each path in the multiple paths from the transmitter to the communication device;   wherein the sending packet further comprises at least one of the latency requirement, a communication device list or a feedback object.   
     
     
         49 . The communication device according to  claim 38 , wherein
 the processor is further configured to determine whether the latency from the transmitter to the communication device meets a latency requirement; the transceiver is further configured to transmit a feedback message to the transmitter or a third-party entity, wherein the feedback message is configured to indicate whether the latency from the transmitter to the communication device meets the latency requirement; or   the transceiver is further configured to transmit the latency to the transmitter or a third party.   
     
     
         50 . (canceled) 
     
     
         51 . (canceled) 
     
     
         52 . A communication device, comprising:
 a transceiver, configured to receive a sending packet from a transmitter, wherein the sending packet is sent to a receiver; and   a processor, configured to add a processing latency of processing the sending packet and a transmission latency between a previous node and the communication device into the sending packet;   the transceiver is further configured to send the sending packet to the receiver.   
     
     
         53 . The communication device according to  claim 52 , wherein the processor is further configured to:
 responsive to determining that the previous node of the communication device is asynchronous with the communication device, determine a synchronization time offset between the communication device and the previous node; and   add the synchronization time offset into the sending packet.   
     
     
         54 . The communication device according to  claim 52 , wherein the processor is specifically configured to:
 add the processing latency and the transmission latency acquired by the communication device into information fields, the information fields being different from information fields including a processing latency and a transmission latency added by other node, wherein the processing latency and the transmission latency added by the communication device are located in different information fields; or   add a sum of the processing latency and the transmission latency acquired by the communication device into an information field, the information field being different from an information field including a sum of the processing latency and the transmission latency added by other node; or   add the sum of the processing latency and the transmission latency by accumulating a time value indicated by the time indication information in the sending packet, wherein the time value indicated by the time indication information represents a sum of a processing latency of processing the sending packet by the transmitter, a processing latency of processing the sending packet by an intermediate node between the transmitter and the communication device and a transmission latency between the transmitter and the previous node of the communication device.