Data transmission control method and apparatus based on wireless communications network

Abstract

According to a method and apparatus for controlling data transmission in a wireless communications network, a service quality request message is sent to a PCRF when a data request message of a terminal is received; and the PCRF queries a current network status, so as to determine a processing instruction for a data request message of the terminal according to the current network status and the data request message, and process the data request message of the terminal according to the processing instruction. Therefore, processing on the data request message of the terminal not only depends on a parameter carried in the data request message of the terminal, but also uses the current network status as a constraint condition, so that a processing manner for the data request message can be adaptive to a real-time change of the wireless communications network.

What is claimed is: 
     
         1 . A data processing apparatus in a wireless communications network, comprising:
 at least one processor configured to,
 send a service quality request message to a policy and charging rules function (PCRF) entity, according to a received data request message for data, which carries a quality for the data, of a terminal; 
   acquire a data request processing instruction, the data request processing instruction indicating to control transmission of the data determined according to a current network congestion status and the quality for the data carried in the data request message of the terminal, and the current network congestion status being obtained through querying by the PCRF according to the received service quality request message; and   control transmission of the data according to the acquired data request processing instruction.   
     
     
         2 . The apparatus according to  claim 1 , wherein the at least one processor is configured to receive the data request processing instruction sent from the PCRF. 
     
     
         3 . The apparatus according to  claim 1 , wherein the at least one processor is further configured to:
 receive a message that indicates the current network congestion status and is sent from the PCRF; and   determine the data request processing instruction according to the current network congestion status and a data bit rate parameter, which indicates the quality for the data, that is carried in the data request message.   
     
     
         4 . The apparatus according to  claim 3 , wherein the at least one processor is further configured to:
 if current network traffic of a cell in which the terminal is located is greater than a preset congestion threshold, determine an instruction for instructing to request data whose preset bit rate is less than a bit rate, which is indicated by the data bit rate parameter, as the data request processing instruction.   
     
     
         5 . The apparatus according to  claim 4 , wherein the at least one processor is further configured to:
 request, from a server, data whose bit rate is the preset bit rate; and   forward the data whose bit rate is the preset bit rate to the terminal, wherein the data is sent from the server.   
     
     
         6 . The apparatus according to  claim 3 , wherein the at least one processor is further configured to:
 if current network traffic of a cell in which the terminal is located is greater than a preset congestion threshold, determine an instruction for instructing to switch a data transmission channel to a wireless local area network, as the data request processing instruction.   
     
     
         7 . A data processing apparatus in a wireless communications network to implement a policy and charging rules function (PCRF) entity in the wireless communications network, the apparatus comprising:
 at least one processor configured to,
 receive a service quality request message, wherein the service quality request message is sent from a sending party when the sending party receives a data request message for data, which indicates a quality for the data, of a terminal; 
 query a current network congestion status according to the service quality request message, the current network congestion status used to determine a data request processing instruction indicating to control transmission of the data according to the queried current network congestion status and the quality for the data carried in the data request message of the terminal; and 
   send the data request processing instruction to the sending party to control transmission of the data.   
     
     
         8 . The apparatus according to  claim 7 , wherein the at least one processor is further configured to:
 determine the data request processing instruction according to the current network congestion status and a data bit rate parameter, which indicates the quality for the data, that is carried in the data request message sent from the sending party; and   send the data request processing instruction to the sending party.   
     
     
         9 . The apparatus according to  claim 7 , wherein the at least one processor is further configured to send the current network congestion status to the sending party. 
     
     
         10 . A non-transitory machine-readable medium having stored thereon, a computer program comprising at least one code section for distributing data, the at least one code section being executable by one or more processors, and when executed, causes the one or more processors to:
 send a service quality request message to a policy and charging rules function (PCRF) entity, according to a received data request message for data, which carries a quality for the data, of a terminal;   acquire a data request processing instruction, the data request processing instruction indicating to control transmission of the data determined according to a current network congestion status and the quality for the data carried in the data request message of the terminal, and the current network congestion status being obtained through querying by the PCRF according to the received service quality request message; and   control transmission of the data according to the acquired data request processing instruction.   
     
     
         11 . The non-transitory machine-readable medium according to  claim 10 , wherein the at least one processor is configured to receive the data request processing instruction sent from the PCRF. 
     
     
         12 . The non-transitory machine-readable medium according to  claim 10 , wherein the at least one processor is further configured to:
 receive a message that indicates the current network congestion status and is sent from the PCRF; and   determine the data request processing instruction according to the current network congestion status and a data bit rate parameter, which indicates the quality for the data, that is carried in the data request message.   
     
     
         13 . The non-transitory machine-readable medium according to  claim 12 , wherein the at least one processor is further configured to:
 if current network traffic of a cell in which the terminal is located is greater than a preset congestion threshold, determine an instruction for instructing to request data whose preset bit rate is less than a bit rate, which is indicated by the data bit rate parameter, as the data request processing instruction.   
     
     
         14 . The non-transitory machine-readable medium according to  claim 13 , wherein the at least one processor is further configured to:
 request, from a server, data whose bit rate is the preset bit rate; and   forward the data whose bit rate is the preset bit rate to the terminal, wherein the data is sent from the server.   
     
     
         15 . The non-transitory machine-readable medium according to  claim 12 , wherein the at least one processor is further configured to:
 if current network traffic of a cell in which the terminal is located is greater than a preset congestion threshold, determine an instruction for instructing to switch a data transmission channel to a wireless local area network, as the data request processing instruction.