Method and apparatus for wireless communication

Abstract

A method and an apparatus for wireless communication are provided. A first network device negotiates with a second network device to determine target data. The first network device supports wireless communication based on a first radio access technology RAT. The second network device supports wireless communication based on a second RAT. The first network device sends based on the first RAT to a terminal device, the target data and RAT type indication information that is used to indicate the second RAT. In this way, user experience can be improved.

What is claimed is: 
     
         1 . A method for wireless communication, comprising:
 receiving, by a first network device, target data from a second network device, wherein the first network device supports wireless communication based on a first radio access technology (RAT), and the second network device supports wireless communication based on a second RAT; and   sending, by the first network device based on the first RAT to a terminal device, the target data and RAT type indication information indicating the second RAT.   
     
     
         2 . The method according to  claim 1 , wherein the target data comprises at least one of a plurality of types of data as follows:
 radio resource indication information, wherein the radio resource indication information indicates a target radio resource in radio resources allocated or granted by the second network device, and the target radio resource is used to perform wireless communication based on the second RAT between the terminal device and the second network device,   system information of the second network device,   radio resource control (RRC) layer data generated by the second network device,   Packet Data Convergence Protocol (PDCP) layer data generated by the second network device, or   media access control (MAC) layer data generated by the second network device.   
     
     
         3 . The method according to  claim 1 , wherein a second protocol stack used to perform wireless communication based on the second RAT is provided in the second network device and the terminal device, the target data is generated by the second network device after the second network device performs encapsulation processing by using a second protocol layer set, the second protocol layer set comprising at least one protocol layer in the second protocol stack, and a first protocol stack used to perform wireless communication based on the first RAT is provided in the first network device and the terminal device; and
 the method further comprises:   receiving, by the first network device, fourth indication information from the second network device, wherein the fourth indication information indicates the second protocol layer set; and   determining, by the first network device, a first protocol layer set based on the fourth indication information, wherein the first protocol layer set comprises at least one protocol layer in the first protocol stack.   
     
     
         4 . The method according to  claim 3 , wherein before the sending the target data, the method further comprises:
 performing, by the first network device, encapsulation processing on the target data based on the first protocol layer set.   
     
     
         5 . The method according to  claim 3 , wherein before the sending the RAT type indication information, the method further comprises:
 performing, by the first network device based on the first protocol layer set, encapsulation processing on the RAT type indication information.   
     
     
         6 . The method according to  claim 3 , further comprising:
 sending, by the first network device based on the first RAT, the fourth indication information to the terminal device.   
     
     
         7 . The method according to  claim 3 , wherein the plurality of types of data correspond to a plurality of pieces of data type information on a one-to-one basis, each piece of data type information uniquely indicates corresponding data in the plurality of types of data, and the fourth indication information is data type information corresponding to the target data; or
 a plurality of protocol layers in the second protocol stack correspond to a plurality of protocol layer identifiers on a one-to-one basis, each protocol layer identifier uniquely indicates a corresponding protocol layer in the plurality of protocol layers, and the fourth indication information is a protocol layer identifier of a protocol layer in the second protocol layer set.   
     
     
         8 . A communications apparatus of a first network device, comprising:
 a memory storing program code; and   a processor in communication with the memory, the processor executing the program code to perform operations, the operations including:   receiving target data from a second network device, wherein the first network device supports wireless communication based on a first radio access technology (RAT), and the second network device supports wireless communication based on a second RAT; and   sending, based on the first RAT to a terminal device, the target data and RAT type indication information indicating the second RAT.   
     
     
         9 . The apparatus according to  claim 8 , wherein the target data comprises at least one of a plurality of types of data as follows:
 radio resource indication information, wherein the radio resource indication information indicates a target radio resource in radio resources allocated or granted by the second network device, and the target radio resource is used to perform wireless communication based on the second RAT between the terminal device and the second network device,   system information of the second network device,   radio resource control (RRC) layer data generated by the second network device,   Packet Data Convergence Protocol (PDCP) layer data generated by the second network device, or   media access control (MAC) layer data generated by the second network device.   
     
     
         10 . The apparatus according to  claim 8 , wherein the processor is further configured to:
 receive fourth indication information from the second network device, wherein the fourth indication information indicates a second protocol layer set of the second network device, and the target data is generated by the second network device after the second network device performs encapsulation processing by using the second protocol layer set; and   determine a first protocol layer set based on the fourth indication information, wherein the first protocol layer set comprises at least one protocol layer in the first protocol stack.   
     
     
         11 . The apparatus according to  claim 10 , wherein before sending the target data, the processor is further configured to:
 perform encapsulation processing on the target data based on the first protocol layer set.   
     
     
         12 . The apparatus according to  claim 10 , wherein before sending the RAT type indication information, the processor is further configured to:
 perform encapsulation processing on the RAT type indication information based on the first protocol layer set.   
     
     
         13 . The apparatus according to  claim 10 , wherein the processor is further configured to:
 send the fourth indication information to the terminal device based on the first RAT.   
     
     
         14 . A system for wireless communication, comprising a first network device and a second network device, wherein the first network device supports wireless communication based on a first radio access technology (RAT), the second network device supports wireless communication based on a second RAT; wherein
 the second network device is configured to send target data to the first network device; and   the first network device is configured to: receive the target data, and send the target data and RAT type indication information indicating the second RAT to a terminal device based on the first RAT.   
     
     
         15 . The system according to  claim 14 , wherein the target data comprises at least one of a plurality of types of data as follows:
 radio resource indication information, wherein the radio resource indication information is used to indicate a target radio resource in radio resources allocated or granted by the second network device, and the target radio resource is used to perform wireless communication based on the second RAT between the terminal device and the second network device,   system information of the second network device,   radio resource control (RRC) layer data generated by the second network device,   Packet Data Convergence Protocol (PDCP) layer data generated by the second network device, or   media access control (MAC) layer data generated by the second network device.   
     
     
         16 . The system according to  claim 14 , wherein a second protocol stack used to perform wireless communication based on the second RAT is provided in the second network device and the terminal device; and
 the second network device is further configured to:   determine a second protocol layer set, wherein the second protocol layer set comprises at least one protocol layer in the second protocol stack; and   perform encapsulation processing based on the second protocol layer set to generate the target data.   
     
     
         17 . The system according to  claim 16 , wherein the second network device is further configured to send fourth indication information to the first network device, wherein the fourth indication information indicates the second protocol layer set; and
 the first network device is further configured to: receive the fourth indication information, and determine a first protocol layer set based on the fourth indication information, wherein the first protocol layer set comprises at least one protocol layer in the first protocol stack.   
     
     
         18 . The system according to  claim 17 , wherein the first network device is further configured to perform encapsulation processing on the target data based on the first protocol layer set. 
     
     
         19 . The system according to  claim 17 , wherein the first network device is further configured to perform encapsulation processing on the RAT type indication information based on the first protocol layer set. 
     
     
         20 . The system according to  claim 17 , wherein the first network device is further configured to send the fourth indication information to the terminal device based on the first RAT.