RemoTI 广播消息收不到

TI工程师，我用RemoTI中的BasicRomote和RNP 程序，在BasicRemote基础上进行修改，配对成功后，发送单播消息OK, 但改为Broastcast消息类型时，对方接收不到消息，请问是哪里有问题，还需要修改哪里？我的发送代码大概如下：

uint8 len = 3;
    uint8 pData[5];  // Note that array size has to match maximum possible data length
    //uint8 txOptions = RTI_TX_OPTION_ACKNOWLEDGED;
    uint8 txOptions = RTI_TX_OPTION_BROADCAST;
    uint8 profileId = RTI_PROFILE_CERC;
    uint16 vendorId = RTI_VENDOR_TEXAS_INSTRUMENTS;
    pData[0] = 0x11;
    pData[1] = 0x22;
    pData[2] = 0x33;
//
    RTI_WriteItem(RTI_SA_ITEM_PT_CURRENT_ENTRY_INDEX, 1, &rsaDestIndex);
    if (RTI_ReadItem(RTI_SA_ITEM_PT_CURRENT_ENTRY, sizeof(rsaPairingEntryBuf),
                     (uint8 *) &rsaPairingEntryBuf) == RTI_SUCCESS &&
        rsaPairingEntryBuf.pairingRef != RTI_INVALID_PAIRING_REF &&
          rsaPairingEntryBuf.securityKeyValid)
    {
      txOptions |= RTI_TX_OPTION_SECURITY;
    }
    //RCN_NlmeDiscoveryAbortReq();
    RTI_SendDataReq( rsaDestIndex, profileId, vendorId, txOptions, len, pData);