diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4683010..66442e3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -150,8 +150,7 @@ qt_add_executable(softbus_daemon
     src/core/metadata/ProfileRegistry.cpp
 
     # message bus pipeline
-    src/message_bus/pipeline/PayloadRef.h
-    src/message_bus/pipeline/PipelineContext.h
+    src/core/models/PayloadRef.h
     src/message_bus/pipeline/DynamicRuleRegistry.h
     src/message_bus/pipeline/DynamicRuleRegistry.cpp
     src/message_bus/pipeline/PipelineEngine.h
diff --git a/bin/softbus_daemon b/bin/softbus_daemon
index 17d8ea2..6137844 100755
Binary files a/bin/softbus_daemon and b/bin/softbus_daemon differ
diff --git a/docs/数据流转.md b/docs/数据流转.md
index 2cfb21d..5a1575c 100644
--- a/docs/数据流转.md
+++ b/docs/数据流转.md
@@ -70,7 +70,7 @@
 
 输出：`frameKind = CompleteFrame` 的帧批次。
 
-### 3.3 Stage 2/3/4：解析 -> 过滤 -> 校验
+### 3.3 Stage 2/3/4：解析 -> 过滤 -> 校验（当前返回语义）
 
 `runStages234(...)` 核心流程：
 
@@ -83,10 +83,13 @@
 3. **Stage4 Validator**
    - 最低校验当前为 `messageId` 非空。
 4. **Transform/Enrich**
-   - 应用动态规则（scale/offset/unit）。
+   - 仅对通过 filter+validator 的 `DOMMessage` 应用动态规则（scale/offset/unit）。
    - 写入 trace，补充富化字段。
 
-说明：当前 `runStages234` 只返回布尔结果，`EnrichedMessage` 由内部生成，后续可接持久化/发布环节。
+说明（与代码一致）：
+- `runStages234` 在 `stage2Parser` 返回空时才返回 `false`。
+- 只要 `stage2Parser` 有消息，哪怕全部在 Stage3/Stage4 被跳过，当前实现仍返回 `true`。
+- `EnrichedMessage` 在内部生成，但尚未进入独立发布/持久化通道。
 
 ### 3.4 出口与有序保证
 
@@ -101,12 +104,12 @@
 
 ## 4. 错误与背压点
 
-主要失败点及表现：
+主要失败点及表现（按当前实现）：
 
 1. **内存池分配失败**：`SerialDevice::onRead` 直接 `reportError(memory pool exhausted)`。
 2. **入口队列满**：`enqueueIngress` 返回 false，计入 drop。
-3. **分帧/解析插件缺失或失败**：对应帧在阶段中被丢弃。
-4. **过滤/校验失败**：消息跳过，不进入下游。
+3. **分帧/解析/映射插件缺失或失败**：`stage2Parser` 返回空，`runStages234=false`，该帧不进入 egress。
+4. **过滤/校验失败**：对应 `DOMMessage` 被跳过（不做 enrich），但该 `PipelineContext` 仍可能继续进入 egress（只要 Stage2 非空）。
 5. **重排深度超限**：`mergeDrop` 增加并告警。
 
 ---
@@ -125,16 +128,19 @@ SerialQtDriver(read callback)
                 -> [Stage4] validate
                   -> transform/enrich
                     -> egressQ (有序模式下先 merge 再 egress)
+                      -> DeviceBusManager::processEgressLoop
+                        -> EgressRouter::send
+                          -> SerialDevice::writePayload
 ```
 
 ---
 
-## 6. 下行（现状）
+## 6. egress 到设备（现状）
 
-- `RawBusMessage.direction` 已支持 `Downstream` 语义。
-- `SerialDevice` 已提供 `writePayload(...)` 写入能力。
-- 当前代码中 egress 路由到物理设备的绑定仍预留（`SerialDeviceManager` 里相关逻辑已注释），后续可补齐：
-  - egress 消息 -> `EgressRouter` -> endpoint 设备 -> `writePayload`。
+- `DeviceBusManager` 已启动 `processEgressLoop`，持续从 `PipelineEngine::tryPopEgress` 取数据并调用 `EgressRouter::send`。
+- `EgressRouter` 已实现 `endpoint -> SerialDevice` 查找和 `writePayload(...)` 发送。
+- 当前关键缺口：`SerialDeviceManager::initializeSerialDeviceWithDeps` 中 `bindSerialDevice(...)` 仍被注释，导致路由表通常为空，`send` 多数返回失败。
+- 因此当前链路是“egress 框架已存在，但默认没有绑定到串口实例”。
 
 ---
 
diff --git a/plugins/protocols/modbus_rtu/framer/ModbusRtuFramerPlugin.cpp b/plugins/protocols/modbus_rtu/framer/ModbusRtuFramerPlugin.cpp
index d9b4816..51465e2 100644
--- a/plugins/protocols/modbus_rtu/framer/ModbusRtuFramerPlugin.cpp
+++ b/plugins/protocols/modbus_rtu/framer/ModbusRtuFramerPlugin.cpp
@@ -25,10 +25,9 @@ public:
         m_buf.resize(m_cfg.maxAdu);
     }
 
-    void feedChunk(softbus::message_bus::pipeline::PipelineContext& in,
-                   std::vector<softbus::message_bus::pipeline::PipelineContext>& out) override
+    void feedChunk(softbus::core::models::RawBusMessage& in,
+                   std::vector<softbus::core::models::RawBusMessage>& out) override
     {
-        using softbus::message_bus::pipeline::FrameKind;
         if (!m_pool || !in.payload.valid()) {
             return;
         }
@@ -77,7 +76,7 @@ public:
             std::memcpy(blk->data, m_buf.data(), *pred);
             blk->size = *pred;
 
-            softbus::message_bus::pipeline::PipelineContext framed;
+            softbus::core::models::RawBusMessage framed;
             framed.deviceId = in.deviceId;
             framed.stableKey = in.stableKey;
             framed.endpoint = in.endpoint;
@@ -85,7 +84,6 @@ public:
             framed.protocolHint = in.protocolHint;
             framed.traceId = in.traceId;
             framed.direction = in.direction;
-            framed.frameKind = FrameKind::CompleteFrame;
             framed.payload.block = std::move(blk);
             framed.payload.offset = 0;
             framed.payload.length = *pred;
@@ -101,7 +99,6 @@ public:
 
         in.payload = {};
         in.payloadSize = 0;
-        in.frameKind = FrameKind::StreamChunk;
     }
 
     void reset() override { m_len = 0; }
diff --git a/plugins/protocols/modbus_rtu/mapper/ModbusRtuProtocolMapperPlugin.cpp b/plugins/protocols/modbus_rtu/mapper/ModbusRtuProtocolMapperPlugin.cpp
index 5733338..eae4f86 100644
--- a/plugins/protocols/modbus_rtu/mapper/ModbusRtuProtocolMapperPlugin.cpp
+++ b/plugins/protocols/modbus_rtu/mapper/ModbusRtuProtocolMapperPlugin.cpp
@@ -12,7 +12,7 @@ class ModbusRtuMapperSession final : public softbus::core::plugin_system::IProto
 {
 public:
     std::vector<softbus::core::models::DOMMessage> map(
-        const softbus::message_bus::pipeline::PipelineContext& rawContext,
+        const softbus::core::models::RawBusMessage& rawContext,
         const softbus::message_bus::pipeline::protocol::ProtocolEnvelope& envelope) override
     {
         std::vector<softbus::core::models::DOMMessage> out;
diff --git a/src/core/CoreService.cpp b/src/core/CoreService.cpp
index 57b4a83..5d98dc8 100644
--- a/src/core/CoreService.cpp
+++ b/src/core/CoreService.cpp
@@ -10,8 +10,8 @@
 
 #include "utils/logs/logging.h"
 #include "device_bus/DeviceBus.h"
-#include "message_bus/pipeline/PayloadRef.h"
-#include "message_bus/pipeline/PipelineContext.h"
+#include "core/models/PayloadRef.h"
+#include "core/models/RawBusMessage.h"
 
 CoreService* CoreService::instance()
 {
@@ -38,8 +38,8 @@ bool CoreService::initialize()
     }
 
     LOG_INFO() << "CoreService initializing";
-    qRegisterMetaType<softbus::message_bus::pipeline::PayloadRef>("softbus::message_bus::pipeline::PayloadRef");
-    qRegisterMetaType<softbus::message_bus::pipeline::PipelineContext>("softbus::message_bus::pipeline::PipelineContext");
+    qRegisterMetaType<softbus::core::models::PayloadRef>("softbus::core::models::PayloadRef");
+    qRegisterMetaType<softbus::core::models::RawBusMessage>("softbus::core::models::RawBusMessage");
 
     // 1. 解析配置路径（放在用户 home 下的相对固定目录：~/softbus/config）
     const QString configPath =
diff --git a/src/message_bus/pipeline/PayloadRef.h b/src/core/models/PayloadRef.h
similarity index 69%
rename from src/message_bus/pipeline/PayloadRef.h
rename to src/core/models/PayloadRef.h
index 1203e70..0bee0ad 100644
--- a/src/message_bus/pipeline/PayloadRef.h
+++ b/src/core/models/PayloadRef.h
@@ -1,14 +1,13 @@
 #pragma once
-// 功能 ：定义有效载荷引用 包含数据块、偏移量、长度
+
 #include <cstddef>
 #include <cstdint>
-#include <memory>
 
 #include <QMetaType>
 
 #include "core/memory/MemoryPool.h"
 
-namespace softbus::message_bus::pipeline
+namespace softbus::core::models
 {
 
 struct PayloadRef
@@ -31,6 +30,6 @@ struct PayloadRef
     }
 };
 
-} // namespace softbus::message_bus::pipeline
+} // namespace softbus::core::models
 
-Q_DECLARE_METATYPE(softbus::message_bus::pipeline::PayloadRef)
+Q_DECLARE_METATYPE(softbus::core::models::PayloadRef)
diff --git a/src/core/models/RawBusMessage.h b/src/core/models/RawBusMessage.h
index 3b38e70..a3c9d04 100644
--- a/src/core/models/RawBusMessage.h
+++ b/src/core/models/RawBusMessage.h
@@ -6,7 +6,7 @@
 #include <QMetaType>
 #include <QString>
 
-#include "message_bus/pipeline/PayloadRef.h"
+#include "core/models/PayloadRef.h"
 
 namespace softbus::core::models
 {
@@ -27,7 +27,7 @@ struct RawBusMessage
     QString protocolHint;
     QString traceId;
 
-    softbus::message_bus::pipeline::PayloadRef payload;
+    softbus::core::models::PayloadRef payload;
     std::size_t payloadSize{0};
 
     BusDirection direction{BusDirection::Unknown};
diff --git a/src/core/plugin_system/IProtocolFramerPlugin.h b/src/core/plugin_system/IProtocolFramerPlugin.h
index bcf8c8b..a32f049 100644
--- a/src/core/plugin_system/IProtocolFramerPlugin.h
+++ b/src/core/plugin_system/IProtocolFramerPlugin.h
@@ -6,8 +6,8 @@
 #include <QJsonObject>
 #include <QString>
 
+#include "core/models/RawBusMessage.h"
 #include "core/memory/MemoryPool.h"
-#include "message_bus/pipeline/PipelineContext.h"
 
 namespace softbus::core::plugin_system
 {
@@ -17,8 +17,8 @@ class IProtocolFramerSession
 public:
     virtual ~IProtocolFramerSession() = default;
 
-    virtual void feedChunk(softbus::message_bus::pipeline::PipelineContext&             in,
-                           std::vector<softbus::message_bus::pipeline::PipelineContext>& out) = 0;
+    virtual void feedChunk(softbus::core::models::RawBusMessage&             in,
+                           std::vector<softbus::core::models::RawBusMessage>& out) = 0;
     virtual void reset() = 0;
     virtual void shutdown() = 0;
 };
diff --git a/src/core/plugin_system/IProtocolMapperPlugin.h b/src/core/plugin_system/IProtocolMapperPlugin.h
index 4c417c3..45aecdc 100644
--- a/src/core/plugin_system/IProtocolMapperPlugin.h
+++ b/src/core/plugin_system/IProtocolMapperPlugin.h
@@ -6,7 +6,7 @@
 #include <QString>
 
 #include "core/models/DOMMessage.h"
-#include "message_bus/pipeline/PipelineContext.h"
+#include "core/models/RawBusMessage.h"
 #include "message_bus/pipeline/protocol/ProtocolEnvelope.h"
 
 namespace softbus::core::plugin_system
@@ -17,7 +17,7 @@ class IProtocolMapperSession
 public:
     virtual ~IProtocolMapperSession() = default;
     virtual std::vector<softbus::core::models::DOMMessage> map(
-        const softbus::message_bus::pipeline::PipelineContext& rawContext,
+        const softbus::core::models::RawBusMessage& rawContext,
         const softbus::message_bus::pipeline::protocol::ProtocolEnvelope& envelope) = 0;
     virtual void reset() = 0;
 };
diff --git a/src/device_bus/manager/DeviceBusManager.cpp b/src/device_bus/manager/DeviceBusManager.cpp
index b18d71e..6a6f46f 100644
--- a/src/device_bus/manager/DeviceBusManager.cpp
+++ b/src/device_bus/manager/DeviceBusManager.cpp
@@ -241,7 +241,7 @@ void DeviceBusManager::processEgressLoop()
             continue;
         }
 
-        softbus::message_bus::pipeline::PipelineContext out;
+        softbus::core::models::RawBusMessage out;
         if (!m_pipelineEngine->tryPopEgress(out)) {
             std::this_thread::sleep_for(std::chrono::milliseconds(1));
             continue;
diff --git a/src/message_bus/egress/EgressRouter.cpp b/src/message_bus/egress/EgressRouter.cpp
index 9e3c6fb..e0fae67 100644
--- a/src/message_bus/egress/EgressRouter.cpp
+++ b/src/message_bus/egress/EgressRouter.cpp
@@ -17,7 +17,7 @@ void EgressRouter::unbindSerialDevice(const QString& endpoint)
     m_serialByEndpoint.remove(endpoint);
 }
 
-bool EgressRouter::send(const softbus::message_bus::pipeline::PipelineContext& ctx)
+bool EgressRouter::send(const softbus::core::models::RawBusMessage& ctx)
 {
     auto it = m_serialByEndpoint.constFind(ctx.endpoint);
     if (it == m_serialByEndpoint.constEnd() || !it.value() || !ctx.payload.valid()) {
diff --git a/src/message_bus/egress/EgressRouter.h b/src/message_bus/egress/EgressRouter.h
index 4168eb5..6a44e03 100644
--- a/src/message_bus/egress/EgressRouter.h
+++ b/src/message_bus/egress/EgressRouter.h
@@ -21,7 +21,7 @@ public:
     void bindSerialDevice(const QString& endpoint,
                           const QSharedPointer<softbus::devices::physical::SerialDevice>& device);
     void unbindSerialDevice(const QString& endpoint);
-    bool send(const softbus::message_bus::pipeline::PipelineContext& ctx) override;
+    bool send(const softbus::core::models::RawBusMessage& ctx) override;
 
 private:
     QHash<QString, QSharedPointer<softbus::devices::physical::SerialDevice>> m_serialByEndpoint;
diff --git a/src/message_bus/egress/IEgressPort.h b/src/message_bus/egress/IEgressPort.h
index cc1cb52..5bcb5fc 100644
--- a/src/message_bus/egress/IEgressPort.h
+++ b/src/message_bus/egress/IEgressPort.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "message_bus/pipeline/PipelineContext.h"
+#include "core/models/RawBusMessage.h"
 
 namespace softbus::message_bus::egress
 {
@@ -9,7 +9,7 @@ class IEgressPort
 {
 public:
     virtual ~IEgressPort() = default;
-    virtual bool send(const softbus::message_bus::pipeline::PipelineContext& ctx) = 0;
+    virtual bool send(const softbus::core::models::RawBusMessage& ctx) = 0;
 };
 
 } // namespace softbus::message_bus::egress
diff --git a/src/message_bus/ingress/DriverIngressAdapter.cpp b/src/message_bus/ingress/DriverIngressAdapter.cpp
index cc12aff..1d052bd 100644
--- a/src/message_bus/ingress/DriverIngressAdapter.cpp
+++ b/src/message_bus/ingress/DriverIngressAdapter.cpp
@@ -17,9 +17,7 @@ bool DriverIngressAdapter::push(softbus::core::models::RawBusMessage ctx)
     if (!m_engine) {
         return false;
     }
-    softbus::message_bus::pipeline::PipelineContext pipelineCtx;
-    pipelineCtx.raw() = std::move(ctx);
-    return m_engine->enqueueIngress(std::move(pipelineCtx));
+    return m_engine->enqueueIngress(std::move(ctx));
 }
 
 void DriverIngressAdapter::reportError(const QString& endpoint, const QString& error)
diff --git a/src/message_bus/pipeline/PipelineContext.h b/src/message_bus/pipeline/PipelineContext.h
deleted file mode 100644
index 0024ae8..0000000
--- a/src/message_bus/pipeline/PipelineContext.h
+++ /dev/null
@@ -1,29 +0,0 @@
-#pragma once
-
-#include <cstdint>
-
-#include <QMetaType>
-#include "core/models/RawBusMessage.h"
-
-namespace softbus::message_bus::pipeline
-{
-
-enum class FrameKind
-{
-    StreamChunk,
-    CompleteFrame,
-};
-
-using BusDirection = softbus::core::models::BusDirection;
-
-struct PipelineContext : public softbus::core::models::RawBusMessage
-{
-    FrameKind frameKind{FrameKind::StreamChunk};
-    std::uint64_t frameSeq{0};
-    softbus::core::models::RawBusMessage& raw() { return *this; }
-    const softbus::core::models::RawBusMessage& raw() const { return *this; }
-};
-
-} // namespace softbus::message_bus::pipeline
-
-Q_DECLARE_METATYPE(softbus::message_bus::pipeline::PipelineContext)
diff --git a/src/message_bus/pipeline/PipelineEngine.cpp b/src/message_bus/pipeline/PipelineEngine.cpp
index 717c207..a85b23d 100644
--- a/src/message_bus/pipeline/PipelineEngine.cpp
+++ b/src/message_bus/pipeline/PipelineEngine.cpp
@@ -13,14 +13,14 @@ namespace softbus::message_bus::pipeline
 
 struct EndpointFramingState
 {
-    softbus::core::memory::LockFreeQueue<PipelineContext> chunkQ;
+    softbus::core::memory::LockFreeQueue<softbus::core::models::RawBusMessage> chunkQ;
     std::atomic<bool>                                   running{true};
     std::thread                                         th;
     std::uint64_t                                       nextSeq{1};
     QString                                             endpoint;
     std::shared_ptr<softbus::core::memory::MemoryPool>             pool;
-    std::function<void(PipelineContext&, std::vector<PipelineContext>&)> feed;
-    std::function<void(PipelineContext)> pushFramed;
+    std::function<void(softbus::core::models::RawBusMessage&, std::vector<softbus::core::models::RawBusMessage>&)> feed;
+    std::function<void(QString, std::uint64_t, softbus::core::models::RawBusMessage)> pushFramed;
 
     explicit EndpointFramingState(std::size_t cap)
         : chunkQ(cap)
@@ -34,19 +34,19 @@ namespace
 void endpointFramerThread(std::shared_ptr<EndpointFramingState> st)
 {
     while (st->running.load(std::memory_order_acquire)) {
-        PipelineContext ch;
+        softbus::core::models::RawBusMessage ch;
         if (!st->chunkQ.pop(ch)) {
             std::this_thread::sleep_for(std::chrono::milliseconds(1));
             continue;
         }
-        std::vector<PipelineContext> out;
+        std::vector<softbus::core::models::RawBusMessage> out;
         if (st->feed) {
             st->feed(ch, out);
         }
         for (auto& x : out) {
-            x.frameSeq = st->nextSeq++;
+            const std::uint64_t seq = st->nextSeq++;
             if (st->pushFramed) {
-                st->pushFramed(std::move(x));
+                st->pushFramed(st->endpoint, seq, std::move(x));
             }
         }
     }
@@ -113,7 +113,7 @@ void PipelineEngine::start()
     // 合并队列是用来存储合并的帧的
     // 合并线程是用来处理合并的帧的
     if (m_rtConfig.parallelPipeline) {
-        m_framedQ = std::make_unique<softbus::core::threading::MutexQueue<PipelineContext>>(m_rtConfig.framedQueueMax);
+        m_framedQ = std::make_unique<softbus::core::threading::MutexQueue<MergeItem>>(m_rtConfig.framedQueueMax);
         for (int i = 0; i < m_rtConfig.parseWorkerCount; ++i) {
             // 创建解析线程 解析线程从帧队列中取出帧 进行处理 
             // emplace_back 是用来创建解析线程的 参数是 lambda 表达式
@@ -187,7 +187,7 @@ void PipelineEngine::stop()
 // 逻辑 ：从 ingress 队列中取出数据 直到队列为空
 void PipelineEngine::drain()
 {
-    PipelineContext tmp;
+    softbus::core::models::RawBusMessage tmp;
     while (m_ingressQ.pop(tmp)) {
     }
 }
@@ -195,7 +195,7 @@ void PipelineEngine::drain()
 // 参数 ：ctx 数据
 // 返回值 ：是否成功
 // 逻辑 ：如果并行管道启用 则根据端点确保帧解析器 然后推送到帧队列 如果并行管道未启用 则直接推送到 ingress 队列
-bool PipelineEngine::enqueueIngress(PipelineContext ctx)
+bool PipelineEngine::enqueueIngress(softbus::core::models::RawBusMessage ctx)
 {
     if (m_rtConfig.parallelPipeline) {
         if (ctx.endpoint.isEmpty()) {
@@ -227,7 +227,7 @@ bool PipelineEngine::enqueueIngress(PipelineContext ctx)
 // 参数 ：ctx 数据
 // 返回值 ：是否成功
 // 逻辑 ：将数据推送到 egress 队列
-bool PipelineEngine::enqueueEgress(PipelineContext ctx)
+bool PipelineEngine::enqueueEgress(softbus::core::models::RawBusMessage ctx)
 {
     return m_egressQ.push(std::move(ctx));
 }
@@ -235,7 +235,7 @@ bool PipelineEngine::enqueueEgress(PipelineContext ctx)
 // 参数 ：out 数据
 // 返回值 ：是否成功
 // 逻辑 ：从 egress 队列中取出数据 如果队列为空 则返回false 如果队列不为空 则返回true
-bool PipelineEngine::tryPopEgress(PipelineContext& out)
+bool PipelineEngine::tryPopEgress(softbus::core::models::RawBusMessage& out)
 {
     return m_egressQ.pop(out);
 }
@@ -262,14 +262,19 @@ void PipelineEngine::ensureEndpointFramer(const QString& endpoint)
     auto              st   = std::make_shared<EndpointFramingState>(qcap > 0 ? qcap : 4096);
     st->endpoint           = endpoint;
     st->pool               = m_pool;
-    st->feed = [this](PipelineContext& in, std::vector<PipelineContext>& out) {
+    st->feed = [this](softbus::core::models::RawBusMessage& in, std::vector<softbus::core::models::RawBusMessage>& out) {
         this->dispatchFramer(in, out);
     };
-    st->pushFramed         = [this](PipelineContext c) {
+    st->pushFramed         = [this](QString endpoint, std::uint64_t seq, softbus::core::models::RawBusMessage c) {
         if (!m_framedQ) {
             return;
         }
-        if (!m_framedQ->tryPush(std::move(c))) {
+        MergeItem item;
+        item.endpoint = std::move(endpoint);
+        item.seq = seq;
+        item.ctx = std::move(c);
+        item.pipelineOk = true;
+        if (!m_framedQ->tryPush(std::move(item))) {
             ++m_counters.drop;
             LOG_WARNING() << "PipelineEngine: framed queue full drop";
         }
@@ -281,7 +286,8 @@ void PipelineEngine::ensureEndpointFramer(const QString& endpoint)
 // 参数 ：chunkIn 数据
 // 返回值 ：无
 // 逻辑 ：根据协议提示 选择合适的帧解析器 进行帧解析
-void PipelineEngine::dispatchFramer(PipelineContext& chunkIn, std::vector<PipelineContext>& completeFramesOut)
+void PipelineEngine::dispatchFramer(
+    softbus::core::models::RawBusMessage& chunkIn, std::vector<softbus::core::models::RawBusMessage>& completeFramesOut)
 {
     if (m_pluginManager) {
         auto plugin = m_pluginManager->selectProtocolFramerPlugin(chunkIn.protocolHint);
@@ -307,29 +313,26 @@ void PipelineEngine::dispatchFramer(PipelineContext& chunkIn, std::vector<Pipeli
     }
 }
 // 功能 ：分配帧序列号
-void PipelineEngine::assignFrameSequence(PipelineContext& ctx)
+std::uint64_t PipelineEngine::assignFrameSequence(const QString& endpoint)
 {
     std::lock_guard<std::mutex> lk(m_seqMutex);
-    ctx.frameSeq = ++m_nextFrameSeqByEndpoint[ctx.endpoint];
+    return ++m_nextFrameSeqByEndpoint[endpoint];
 }
 
 void PipelineEngine::runSingleWorker()
 {
     // 单线程工作线程 从 ingress 队列中取出数据 进行处理 然后推送到 egress 队列中
     while (m_running.load(std::memory_order_acquire)) {
-        PipelineContext ctx;
+        softbus::core::models::RawBusMessage ctx;
         if (!m_ingressQ.pop(ctx)) {
             std::this_thread::sleep_for(std::chrono::milliseconds(1));
             continue;
         }
 
-        std::vector<PipelineContext> batch;
+        std::vector<softbus::core::models::RawBusMessage> batch;
         dispatchFramer(ctx, batch);
 
         for (auto& c : batch) {
-            if (c.frameKind != FrameKind::CompleteFrame) {
-                continue;
-            }
             // 
             std::ostringstream oss;
             oss << std::hex << std::setfill('0');
@@ -342,8 +345,8 @@ void PipelineEngine::runSingleWorker()
             const QString hexPreview = QString::fromStdString(oss.str());
             LOG_INFO() << "the data is"<< hexPreview;
             // 分配帧序列号
-            assignFrameSequence(c);
-            if (!runStages234(c)) {
+            const bool ok = runStages234(c);
+            if (!ok) {
                 ++m_counters.error;
                 continue;
             }
@@ -359,9 +362,8 @@ void PipelineEngine::runSingleWorker()
 void PipelineEngine::parseWorkerLoop()
 {
     while (true) {
-        PipelineContext ctx;
-    
-        const bool      have = m_framedQ && m_framedQ->popWaitFor(ctx, m_running, std::chrono::milliseconds(50)); // 从帧队列中取出帧 , 如果帧队列为空 则等待50毫秒
+        MergeItem item;
+        const bool have = m_framedQ && m_framedQ->popWaitFor(item, m_running, std::chrono::milliseconds(50));
         if (!have) {
             if (!m_running.load(std::memory_order_acquire)) {
                 break;
@@ -369,21 +371,16 @@ void PipelineEngine::parseWorkerLoop()
             continue;
         }
 
-
-        const bool ok = runStages234(ctx);
+        const bool ok = runStages234(item.ctx);
         if (m_rtConfig.orderedEgress && m_mergeQ) {
-            MergeItem it;
-            it.endpoint    = ctx.endpoint;
-            it.seq         = ctx.frameSeq;
-            it.pipelineOk  = ok;
-            it.ctx         = std::move(ctx);
-            m_mergeQ->push(std::move(it));
+            item.pipelineOk = ok;
+            m_mergeQ->push(std::move(item));
         } else {
             if (!ok) {
                 ++m_counters.error;
                 continue;
             }
-            if (!m_egressQ.push(std::move(ctx))) {
+            if (!m_egressQ.push(std::move(item.ctx))) {
                 ++m_counters.drop;
                 continue;
             }
@@ -426,7 +423,7 @@ void PipelineEngine::ingestMergeItem(MergeItem item)
         auto pr = st.buffer.take(st.nextExpected);
         ++st.nextExpected;
         const bool             pipelineOk = pr.second;
-        PipelineContext        ctx          = std::move(pr.first);
+        softbus::core::models::RawBusMessage ctx = std::move(pr.first);
         if (!pipelineOk) {
             ++m_counters.error;
             continue;
@@ -443,11 +440,8 @@ void PipelineEngine::ingestMergeItem(MergeItem item)
 // 参数 ：ctx 数据
 // 返回值 ：是否成功
 // 逻辑 ：如果帧类型不是完整帧 则返回false 如果阶段2解析失败 则返回false 如果阶段3过滤失败 则返回false 如果阶段4验证失败 则返回false 如果都成功 则返回true
-bool PipelineEngine::runStages234(PipelineContext& ctx)
+bool PipelineEngine::runStages234(const softbus::core::models::RawBusMessage& ctx)
 {
-    if (ctx.frameKind != FrameKind::CompleteFrame) {
-        return false;
-    }
     auto messages = stage2Parser(ctx);
     LOG_INFO() << "PipelineEngine: stage2Parser messages size=" << messages.size();
     if (messages.empty()) {
@@ -478,7 +472,7 @@ bool PipelineEngine::stage4Validator(const softbus::core::models::DOMMessage& me
 // 参数 ：ctx 数据
 // 返回值 ：是否成功
 // 逻辑 ：如果插件管理器为空 则返回true 如果插件管理器不为空 则选择合适的插件 创建会话 如果会话为空 则返回false 如果会话不为空 则返回true
-std::vector<softbus::core::models::DOMMessage> PipelineEngine::stage2Parser(const PipelineContext& ctx)
+std::vector<softbus::core::models::DOMMessage> PipelineEngine::stage2Parser(const softbus::core::models::RawBusMessage& ctx)
 {
     if (!m_pluginManager) {
         return {};
@@ -505,7 +499,7 @@ std::vector<softbus::core::models::DOMMessage> PipelineEngine::stage2Parser(cons
         parserSession = it.value();
     }
     softbus::message_bus::pipeline::protocol::ProtocolEnvelope envelope; // 协议封装
-    if (!parserSession->parse(ctx.raw(), envelope)) {
+    if (!parserSession->parse(ctx, envelope)) {
         return {};
     }
 
@@ -540,7 +534,7 @@ bool PipelineEngine::stage3Filter(softbus::core::models::DOMMessage& message)
 }
 
 softbus::core::models::EnrichedMessage PipelineEngine::applyTransformAndEnrich(
-    const PipelineContext& rawCtx, softbus::core::models::DOMMessage& message) const
+    const softbus::core::models::RawBusMessage& rawCtx, softbus::core::models::DOMMessage& message) const
 {
     auto rules = softbus::message_bus::pipeline::DynamicRuleRegistry::instance().snapshotTransformRules(
         rawCtx.endpoint, rawCtx.deviceId, rawCtx.stableKey);
diff --git a/src/message_bus/pipeline/PipelineEngine.h b/src/message_bus/pipeline/PipelineEngine.h
index dcaf9cf..ce8861a 100644
--- a/src/message_bus/pipeline/PipelineEngine.h
+++ b/src/message_bus/pipeline/PipelineEngine.h
@@ -15,11 +15,11 @@
 #include "core/plugin_system/IProtocolMapperPlugin.h"
 #include "core/models/DOMMessage.h"
 #include "core/models/EnrichedMessage.h"
+#include "core/models/RawBusMessage.h"
 #include "core/memory/LockFreeQueue.h"
 #include "core/memory/MemoryPool.h"
 #include "core/threading/MutexQueue.h"
 #include "message_bus/pipeline/DynamicRuleRegistry.h"
-#include "message_bus/pipeline/PipelineContext.h"
 #include "message_bus/pipeline/stages/1_framers/PassthroughFramer.h"
 
 namespace softbus::message_bus::pipeline
@@ -56,10 +56,10 @@ public:
     void stop();
     void drain();
 
-    bool enqueueIngress(PipelineContext ctx);
-    bool enqueueEgress(PipelineContext ctx);
+    bool enqueueIngress(softbus::core::models::RawBusMessage ctx);
+    bool enqueueEgress(softbus::core::models::RawBusMessage ctx);
 
-    bool tryPopEgress(PipelineContext& out);
+    bool tryPopEgress(softbus::core::models::RawBusMessage& out);
     void setPluginManager(std::shared_ptr<softbus::core::plugin_system::PluginManager> pluginManager);
     void setMemoryPool(std::shared_ptr<softbus::core::memory::MemoryPool> pool);
     void setRuntimeConfig(PipelineRuntimeConfig cfg);
@@ -72,14 +72,14 @@ private:
     {
         QString          endpoint;
         std::uint64_t    seq{0};
-        PipelineContext ctx;
+        softbus::core::models::RawBusMessage ctx;
         bool             pipelineOk{false};
     };
 
     struct MergeState
     {
         std::uint64_t                                            nextExpected{1};
-        QHash<std::uint64_t, std::pair<PipelineContext, bool>> buffer;
+        QHash<std::uint64_t, std::pair<softbus::core::models::RawBusMessage, bool>> buffer;
     };
 
     void runSingleWorker();
@@ -88,20 +88,21 @@ private:
 
     void ensureEndpointFramer(const QString& endpoint);
 
-    void dispatchFramer(PipelineContext& chunkIn, std::vector<PipelineContext>& completeFramesOut);
-    void assignFrameSequence(PipelineContext& ctx);
-    bool runStages234(PipelineContext& ctx);
+    void dispatchFramer(softbus::core::models::RawBusMessage& chunkIn,
+                        std::vector<softbus::core::models::RawBusMessage>& completeFramesOut);
+    std::uint64_t assignFrameSequence(const QString& endpoint);
+    bool runStages234(const softbus::core::models::RawBusMessage& ctx);
     void ingestMergeItem(MergeItem item);
 
-    std::vector<softbus::core::models::DOMMessage> stage2Parser(const PipelineContext& ctx);
+    std::vector<softbus::core::models::DOMMessage> stage2Parser(const softbus::core::models::RawBusMessage& ctx);
     bool stage3Filter(softbus::core::models::DOMMessage& message);
     bool stage4Validator(const softbus::core::models::DOMMessage& message) const;
     softbus::core::models::EnrichedMessage applyTransformAndEnrich(
-        const PipelineContext& rawCtx, softbus::core::models::DOMMessage& message) const;
+        const softbus::core::models::RawBusMessage& rawCtx, softbus::core::models::DOMMessage& message) const;
 
 private:
-    softbus::core::memory::LockFreeQueue<PipelineContext> m_ingressQ;
-    softbus::core::memory::LockFreeQueue<PipelineContext> m_egressQ;
+    softbus::core::memory::LockFreeQueue<softbus::core::models::RawBusMessage> m_ingressQ;
+    softbus::core::memory::LockFreeQueue<softbus::core::models::RawBusMessage> m_egressQ;
     std::atomic<bool> m_running{false};
     std::thread       m_worker;
     Counters          m_counters;
@@ -121,7 +122,7 @@ private:
     std::mutex                    m_seqMutex;
     QHash<QString, std::uint64_t> m_nextFrameSeqByEndpoint;
 
-    std::unique_ptr<softbus::core::threading::MutexQueue<PipelineContext>> m_framedQ;
+    std::unique_ptr<softbus::core::threading::MutexQueue<MergeItem>> m_framedQ;
     std::unique_ptr<softbus::core::threading::MutexQueue<MergeItem>>       m_mergeQ;
     std::vector<std::thread>                                                m_parseThreads;
     std::thread                                                             m_mergerThread;
diff --git a/src/message_bus/pipeline/stages/1_framers/IFramer.h b/src/message_bus/pipeline/stages/1_framers/IFramer.h
index 34209f7..e950790 100644
--- a/src/message_bus/pipeline/stages/1_framers/IFramer.h
+++ b/src/message_bus/pipeline/stages/1_framers/IFramer.h
@@ -2,7 +2,7 @@
 
 #include <vector>
 
-#include "message_bus/pipeline/PipelineContext.h"
+#include "core/models/RawBusMessage.h"
 
 namespace softbus::message_bus::pipeline::stages::framers
 {
@@ -13,8 +13,8 @@ public:
     virtual ~IFramer() = default;
 
     /// Consumes `chunkIn` (StreamChunk 语义)；仅在 `completeFramesOut` 中追加 CompleteFrame。
-    virtual void feed(softbus::message_bus::pipeline::PipelineContext&           chunkIn,
-                      std::vector<softbus::message_bus::pipeline::PipelineContext>& completeFramesOut) = 0;
+    virtual void feed(softbus::core::models::RawBusMessage&           chunkIn,
+                      std::vector<softbus::core::models::RawBusMessage>& completeFramesOut) = 0;
 };
 
 } // namespace softbus::message_bus::pipeline::stages::framers
diff --git a/src/message_bus/pipeline/stages/1_framers/PassthroughFramer.cpp b/src/message_bus/pipeline/stages/1_framers/PassthroughFramer.cpp
index 614d24b..f82a689 100644
--- a/src/message_bus/pipeline/stages/1_framers/PassthroughFramer.cpp
+++ b/src/message_bus/pipeline/stages/1_framers/PassthroughFramer.cpp
@@ -10,8 +10,8 @@ PassthroughFramer::PassthroughFramer(std::shared_ptr<softbus::core::memory::Memo
 {
 }
 
-void PassthroughFramer::feed(softbus::message_bus::pipeline::PipelineContext&           chunkIn,
-                             std::vector<softbus::message_bus::pipeline::PipelineContext>& completeFramesOut)
+void PassthroughFramer::feed(softbus::core::models::RawBusMessage&           chunkIn,
+                             std::vector<softbus::core::models::RawBusMessage>& completeFramesOut)
 {
     if (!m_pool || !chunkIn.payload.valid()) {
         return;
@@ -31,7 +31,7 @@ void PassthroughFramer::feed(softbus::message_bus::pipeline::PipelineContext&
     std::memcpy(blk->data, src, n);
     blk->size = n;
 
-    softbus::message_bus::pipeline::PipelineContext out;
+    softbus::core::models::RawBusMessage out;
     out.deviceId     = chunkIn.deviceId;
     out.stableKey    = chunkIn.stableKey;
     out.endpoint     = chunkIn.endpoint;
@@ -39,7 +39,6 @@ void PassthroughFramer::feed(softbus::message_bus::pipeline::PipelineContext&
     out.protocolHint = chunkIn.protocolHint;
     out.traceId      = chunkIn.traceId;
     out.direction    = chunkIn.direction;
-    out.frameKind    = softbus::message_bus::pipeline::FrameKind::CompleteFrame;
     out.payloadSize  = n;
     out.payload.block = std::move(blk);
     out.payload.offset = 0;
diff --git a/src/message_bus/pipeline/stages/1_framers/PassthroughFramer.h b/src/message_bus/pipeline/stages/1_framers/PassthroughFramer.h
index a7b3dee..8a545b6 100644
--- a/src/message_bus/pipeline/stages/1_framers/PassthroughFramer.h
+++ b/src/message_bus/pipeline/stages/1_framers/PassthroughFramer.h
@@ -15,8 +15,8 @@ class PassthroughFramer final : public IFramer
 public:
     explicit PassthroughFramer(std::shared_ptr<softbus::core::memory::MemoryPool> pool);
 
-    void feed(softbus::message_bus::pipeline::PipelineContext&           chunkIn,
-              std::vector<softbus::message_bus::pipeline::PipelineContext>& completeFramesOut) override;
+    void feed(softbus::core::models::RawBusMessage&           chunkIn,
+              std::vector<softbus::core::models::RawBusMessage>& completeFramesOut) override;
 
 private:
     std::shared_ptr<softbus::core::memory::MemoryPool> m_pool;
diff --git a/src/message_bus/pipeline/stages/2_parsers/IParserStage.h b/src/message_bus/pipeline/stages/2_parsers/IParserStage.h
index b2ed7f2..cb49247 100644
--- a/src/message_bus/pipeline/stages/2_parsers/IParserStage.h
+++ b/src/message_bus/pipeline/stages/2_parsers/IParserStage.h
@@ -3,7 +3,7 @@
 #include <vector>
 
 #include "core/models/DOMMessage.h"
-#include "message_bus/pipeline/PipelineContext.h"
+#include "core/models/RawBusMessage.h"
 
 namespace softbus::message_bus::pipeline::stages::parsers
 {
@@ -13,7 +13,7 @@ class IParserStage
 public:
     virtual ~IParserStage() = default;
     virtual std::vector<softbus::core::models::DOMMessage> parse(
-        const softbus::message_bus::pipeline::PipelineContext& rawContext) = 0;
+        const softbus::core::models::RawBusMessage& rawContext) = 0;
 };
 
 } // namespace softbus::message_bus::pipeline::stages::parsers
diff --git a/src/message_bus/pipeline/stages/4_validators/IValidator.h b/src/message_bus/pipeline/stages/4_validators/IValidator.h
index 19fea06..234f78b 100644
--- a/src/message_bus/pipeline/stages/4_validators/IValidator.h
+++ b/src/message_bus/pipeline/stages/4_validators/IValidator.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "message_bus/pipeline/PipelineContext.h"
+#include "core/models/RawBusMessage.h"
 
 namespace softbus::message_bus::pipeline::stages::validators
 {
@@ -9,7 +9,7 @@ class IValidator
 {
 public:
     virtual ~IValidator() = default;
-    virtual bool validate(softbus::message_bus::pipeline::PipelineContext& ctx) = 0;
+    virtual bool validate(softbus::core::models::RawBusMessage& ctx) = 0;
 };
 
 } // namespace softbus::message_bus::pipeline::stages::validators