BLE CoC（L2CAP CoC）的吞吐量取决于多个因素，包括设备硬件能力、信号强度、距离、网络拥塞程度等。因此，无法给出具体的吞吐量数值。下面是一个示例代码，可以用于测试BLE CoC的吞吐量：

private BluetoothDevice mDevice;
private BluetoothGatt mGatt;
private BluetoothGattCharacteristic mCharacteristic;
private long mStartTime;
private long mBytesReceived;

// 连接设备
public void connectDevice(BluetoothDevice device) {
    mDevice = device;
    mGatt = mDevice.connectGatt(this, false, mGattCallback);
}

// 启动吞吐量测试
public void startThroughputTest() {
    if (mGatt != null && mCharacteristic != null) {
        mStartTime = System.currentTimeMillis();
        mBytesReceived = 0;
        mGatt.setCharacteristicNotification(mCharacteristic, true);
        BluetoothGattDescriptor descriptor = mCharacteristic.getDescriptor(
                UUID.fromString("00002902-0000-1000-8000-00805f9b34fb"));
        descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
        mGatt.writeDescriptor(descriptor);
    }
}

// GATT回调
private BluetoothGattCallback mGattCallback = new BluetoothGattCallback() {
    @Override
    public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
        if (newState == BluetoothProfile.STATE_CONNECTED) {
            gatt.discoverServices();
        } else if (newState == BluetoothProfile.STATE_DISCONNECTED) {
            // 设备断开连接
        }
    }

    @Override
    public void onServicesDiscovered(BluetoothGatt gatt, int status) {
        List services = gatt.getServices();
        for (BluetoothGattService service : services) {
            List characteristics = service.getCharacteristics();
            for (BluetoothGattCharacteristic characteristic : characteristics) {
                if (characteristic.getUuid().equals(UUID.fromString("YOUR_CHARACTERISTIC_UUID"))) {
                    mCharacteristic = characteristic;
                    break;
                }
            }
        }
    }

    @Override
    public void onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {
        long currentTime = System.currentTimeMillis();
        long elapsedTime = currentTime - mStartTime;
        byte[] value = characteristic.getValue();
        int bytesReceived = value.length;
        mBytesReceived += bytesReceived;
        double throughput = (mBytesReceived * 8.0) / (elapsedTime / 1000.0); // 单位：bps
        Log.d("Throughput", "Throughput: " + throughput + " bps");
    }
};

请注意，上述代码中的 "YOUR_CHARACTERISTIC_UUID" 需要替换为实际的特征UUID。此代码片段通过监听特征值变化来测量数据接收的速度，然后计算吞吐量。