Data transmission and receiving method, wireless access point equipment, gateway and communication system
A technology of a data sending method and a data receiving method, applied in the field of communication, can solve the problems of using too many protocol layers and low transmission efficiency, and achieve the effects of improving the transmission efficiency, reducing the transmission overhead and reducing the amount of data transmission.
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[0042] First of all, the data sending method of the present invention provides the first embodiment, which includes the following steps:
[0043] Step A1: Add a corresponding user identifier before the header and payload of the circuit-switched domain service data transmitted between the wireless access point and the access gateway, and mark the user to which the message belongs and the message's payload. length;
[0044] Step A2, multiplex the message payloads, message headers, and added user identifiers of at least two users together as the payload of the real-time transport protocol RTP data packet;
[0045] Step A3: Send the multiplexed real-time transmission protocol data packet.
[0046] It can be seen from the above embodiments that, in the specific scenario of transmission between the wireless access point and the access gateway, the payload, the header, and the added respective user identifiers of the message including at least two user data are multiplexed in At the same...
Example
[0067] Refer to Figure 8 , The present invention also provides a second embodiment of the data receiving method, corresponding to the second embodiment of the data sending method, including the following steps:
[0068] Step 801: Receive an RTP multiplexed circuit-switched domain service RTP data packet transmitted between the wireless access point and the access gateway;
[0069] In this step, the received RTP data packet comes from the wireless access point and is transmitted through the user equipment, central office equipment, and IP network. Specifically, this embodiment takes the data as an example of adaptive multi-rate AMR voice data. Description.
[0070] In this embodiment, the user equipment and the central office equipment may be an ADSL modem and a DSLAM, respectively, and may also be a Cable modem and a CMTS, respectively.
[0071] Step 802: Parse the multiplexed RTP data from the data packet;
[0072] Specifically, the access gateway parses the multiplexed data fro...
Example
[0082] Refer to Picture 9 First, the fourth embodiment of the data sending method of the present invention is provided, which includes the following steps:
[0083] Step 901: Select the circuit-switched domain service data of at least two users whose destination address is the same wireless access point, and add a corresponding user identifier before the data packet header and packet payload of each selected user;
[0084] Step 902: Add a corresponding user identifier before the header and the payload of each user voice data packet, and mark the user to which the message belongs and the length of the message;
[0085] Step 903: Multiplex the packet payloads, packet headers, and respective user identifiers of the above-mentioned at least two users together as the payload of the real-time transport protocol RTP data packet, and encapsulate them into RTP / UDP / IP and the underlying protocol ;
[0086] Step 904: Send the multiplexed real-time transport protocol data packet to the wirel...
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