diff --git a/api/@ohos.rpc.d.ts b/api/@ohos.rpc.d.ts
index 2f2119fc3a54bb9dacae874dfda3f8afc01f8d7e..34f5edc604c6d923cb82257fbde56e65421e2951 100644
--- a/api/@ohos.rpc.d.ts
+++ b/api/@ohos.rpc.d.ts
@@ -825,6 +825,26 @@ declare namespace rpc {
          */
         queryLocalInterface(descriptor: string): IRemoteBroker;
 
+        /**
+         * Sends a {@link MessageParcel} message to the peer process in synchronous or asynchronous mode.
+         *
+         * <p>If asynchronous mode is set for {@code option}, a response is returned immediately.
+         * If synchronous mode is set for {@code option}, the interface will wait for a response from the peer process
+         * until the request times out. The user must prepare {@code reply} for receiving the execution result
+         * given by the peer process.
+         *
+         * @param code Indicates the message code, which is determined by both sides of the communication.
+         * If the interface is generated by the IDL tool, the message code is automatically generated by IDL.
+         * @param data Indicates the {@link MessageParcel} object sent to the peer process.
+         * @param reply Indicates the {@link MessageParcel} object returned by the peer process.
+         * @param options Indicates the synchronous or asynchronous mode to send messages.
+         * @return Returns {@code true} if the method is called successfully; returns {@code false} otherwise.
+         * @throws RemoteException Throws this exception if the method fails to be called.
+         * @deprecated since 8
+         * @since 7
+         */
+        sendRequest(code: number, data: MessageParcel, reply: MessageParcel, options: MessageOption): boolean;
+
         /**
          * Sends a {@link MessageParcel} message to the peer process in synchronous or asynchronous mode.
          *
@@ -839,29 +859,28 @@ declare namespace rpc {
          * param operations Indicates the synchronous or asynchronous mode to send messages.
          * @returns Promise used to return the {@link SendRequestResult} instance.
          * @throws Throws an exception if the method fails to be called.
+         * @deprecated since 9
          * @since 8
          */
         sendRequest(code: number, data: MessageParcel, reply: MessageParcel, options: MessageOption): Promise<SendRequestResult>;
 
         /**
-         * Sends a {@link MessageParcel} message to the peer process in synchronous or asynchronous mode.
-         *
-         * <p>If asynchronous mode is set for {@code option}, a response is returned immediately.
-         * If synchronous mode is set for {@code option}, the interface will wait for a response from the peer process
-         * until the request times out. The user must prepare {@code reply} for receiving the execution result
-         * given by the peer process.
+         * Sends a {@link MessageParcel} message to the peer process asynchronously.
          *
-         * @param code Indicates the message code, which is determined by both sides of the communication.
-         * If the interface is generated by the IDL tool, the message code is automatically generated by IDL.
-         * @param data Indicates the {@link MessageParcel} object sent to the peer process.
-         * @param reply Indicates the {@link MessageParcel} object returned by the peer process.
-         * @param options Indicates the synchronous or asynchronous mode to send messages.
-         * @return Returns {@code true} if the method is called successfully; returns {@code false} otherwise.
-         * @throws RemoteException Throws this exception if the method fails to be called.
-         * @deprecated since 8
-         * @since 7
+         * <p>If options indicates the asynchronous mode, a promise will be fulfilled immediately
+         * and the reply message does not contain any content. If options indicates the synchronous mode,
+         * a promise will be fulfilled when the response to sendRequest is returned,
+         * and the reply message contains the returned information.
+         * param code Message code called by the request, which is determined by the client and server.
+         * If the method is generated by an IDL tool, the message code is automatically generated by the IDL tool.
+         * param data {@link MessageParcel} object holding the data to send.
+         * param reply {@link MessageParcel} object that receives the response.
+         * param operations Indicates the synchronous or asynchronous mode to send messages.
+         * @returns Promise used to return the {@link SendRequestResult} instance.
+         * @throws Throws an exception if the method fails to be called.
+         * @since 9
          */
-        sendRequest(code: number, data: MessageParcel, reply: MessageParcel, options: MessageOption): boolean;
+        sendRequestAsync(code: number, data: MessageParcel, reply: MessageParcel, options: MessageOption): Promise<SendRequestResult>;
 
         /**
          * Sends a {@link MessageParcel} message to the peer process in synchronous or asynchronous mode.
@@ -1070,6 +1089,22 @@ declare namespace rpc {
          */
         onRemoteRequest(code: number, data: MessageParcel, reply: MessageParcel, options: MessageOption): boolean;
 
+        /**
+         * Sends a request to the peer object.
+         *
+         * <p>If the peer object and {@code RemoteObject} are on the same device, the request is sent by the IPC driver.
+         * If they are on different devices, the request is sent by the socket driver.
+         *
+         * @param code Indicates the message code of the request.
+         * @param data Indicates the {@link MessageParcel} object storing the data to be sent.
+         * @param reply Indicates the {@link MessageParcel} object receiving the response data.
+         * @param options Indicates a synchronous (default) or asynchronous request.
+         * @return Returns {@code true} if the operation succeeds; returns {@code false} otherwise.
+         * @deprecated since 8
+         * @since 7
+         */
+        sendRequest(code: number, data: MessageParcel, reply: MessageParcel, options: MessageOption): boolean;
+
         /**
          * Sends a {@link MessageParcel} message to the peer process in synchronous or asynchronous mode.
          *
@@ -1084,25 +1119,28 @@ declare namespace rpc {
          * param operations Indicates the synchronous or asynchronous mode to send messages.
          * @returns Promise used to return the {@link SendRequestResult} instance.
          * @throws Throws an exception if the method fails to be called.
+         * @deprecated since 9
          * @since 8
          */
         sendRequest(code: number, data: MessageParcel, reply: MessageParcel, options: MessageOption): Promise<SendRequestResult>;
 
         /**
-         * Sends a request to the peer object.
-         *
-         * <p>If the peer object and {@code RemoteObject} are on the same device, the request is sent by the IPC driver.
-         * If they are on different devices, the request is sent by the socket driver.
+         * Sends a {@link MessageParcel} message to the peer process in synchronous or asynchronous mode.
          *
-         * @param code Indicates the message code of the request.
-         * @param data Indicates the {@link MessageParcel} object storing the data to be sent.
-         * @param reply Indicates the {@link MessageParcel} object receiving the response data.
-         * @param options Indicates a synchronous (default) or asynchronous request.
-         * @return Returns {@code true} if the operation succeeds; returns {@code false} otherwise.
-         * @deprecated since 8
-         * @since 7
+         * <p>If options indicates the asynchronous mode, a promise will be fulfilled immediately
+         * and the reply message does not contain any content. If options indicates the synchronous mode,
+         * a promise will be fulfilled when the response to sendRequest is returned,
+         * and the reply message contains the returned information.
+         * param code Message code called by the request, which is determined by the client and server.
+         * If the method is generated by an IDL tool, the message code is automatically generated by the IDL tool.
+         * param data {@link MessageParcel} object holding the data to send.
+         * param reply {@link MessageParcel} object that receives the response.
+         * param operations Indicates the synchronous or asynchronous mode to send messages.
+         * @returns Promise used to return the {@link SendRequestResult} instance.
+         * @throws Throws an exception if the method fails to be called.
+         * @since 9
          */
-        sendRequest(code: number, data: MessageParcel, reply: MessageParcel, options: MessageOption): boolean;
+        sendRequestAsync(code: number, data: MessageParcel, reply: MessageParcel, options: MessageOption): Promise<SendRequestResult>;
 
         /**
          * Sends a {@link MessageParcel} message to the peer process in synchronous or asynchronous mode.
@@ -1226,6 +1264,23 @@ declare namespace rpc {
          */
         getInterfaceDescriptor(): string;
 
+        /**
+         * Sends a request to the peer object.
+         *
+         * <p>If the peer object and {@code RemoteProxy} are on the same device, the request is sent by the IPC driver.
+         * If they are on different devices, the request is sent by the socket driver.
+         *
+         * @param code Indicates the message code of the request.
+         * @param data Indicates the {@link MessageParcel} object storing the data to be sent.
+         * @param reply Indicates the {@link MessageParcel} object receiving the response data.
+         * @param options Indicates a synchronous (default) or asynchronous request.
+         * @return Returns {@code true} if the operation succeeds; returns {@code false} otherwise.
+         * @throws RemoteException Throws this exception if a remote object exception occurs.
+         * @deprecated since 8
+         * @since 7
+         */
+        sendRequest(code: number, data: MessageParcel, reply: MessageParcel, options: MessageOption): boolean;
+
         /**
          * Sends a {@link MessageParcel} message to the peer process in synchronous or asynchronous mode.
          *
@@ -1240,26 +1295,28 @@ declare namespace rpc {
          * param operations Indicates the synchronous or asynchronous mode to send messages.
          * @returns Promise used to return the {@link sendRequestResult} instance.
          * @throws Throws an exception if the method fails to be called.
+         * @deprecated since 9
          * @since 8
          */
         sendRequest(code: number, data: MessageParcel, reply: MessageParcel, options: MessageOption): Promise<SendRequestResult>;
 
         /**
-         * Sends a request to the peer object.
-         *
-         * <p>If the peer object and {@code RemoteProxy} are on the same device, the request is sent by the IPC driver.
-         * If they are on different devices, the request is sent by the socket driver.
+         * Sends a {@link MessageParcel} message to the peer process in synchronous or asynchronous mode.
          *
-         * @param code Indicates the message code of the request.
-         * @param data Indicates the {@link MessageParcel} object storing the data to be sent.
-         * @param reply Indicates the {@link MessageParcel} object receiving the response data.
-         * @param options Indicates a synchronous (default) or asynchronous request.
-         * @return Returns {@code true} if the operation succeeds; returns {@code false} otherwise.
-         * @throws RemoteException Throws this exception if a remote object exception occurs.
-         * @deprecated since 8
-         * @since 7
+         * <p>If options indicates the asynchronous mode, a promise will be fulfilled immediately
+         * and the reply message does not contain any content. If options indicates the synchronous mode,
+         * a promise will be fulfilled when the response to sendRequest is returned,
+         * and the reply message contains the returned information.
+         * param code Message code called by the request, which is determined by the client and server.
+         * If the method is generated by an IDL tool, the message code is automatically generated by the IDL tool.
+         * param data {@link MessageParcel} object holding the data to send.
+         * param reply {@link MessageParcel} object that receives the response.
+         * param operations Indicates the synchronous or asynchronous mode to send messages.
+         * @returns Promise used to return the {@link SendRequestResult} instance.
+         * @throws Throws an exception if the method fails to be called.
+         * @since 9
          */
-        sendRequest(code: number, data: MessageParcel, reply: MessageParcel, options: MessageOption): boolean;
+        sendRequestAsync(code: number, data: MessageParcel, reply: MessageParcel, options: MessageOption): Promise<SendRequestResult>;
 
         /**
          * Sends a {@link MessageParcel} message to the peer process in synchronous or asynchronous mode.