Transmission method of data packets, communication equipment and communication system
A technology of communication equipment and a transmission method, which is applied in the field of communication, can solve problems such as high data packet transmission error rate, waste of wireless resources, and increased transmission delay, and achieve effective use of wireless resources, saving wireless resources, and avoiding repeated retransmissions Effect
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Embodiment 1
[0030] A method for transmitting data packets, comprising: adjusting the length of the current scheduling window according to the number of data packets waiting to be sent and the feedback information received last time, and transmitting the data packets according to the adjusted scheduling window length; wherein, the length of the scheduling window is greater than It is equal to the smallest unit of a scheduling window length and less than or equal to the maximum scheduling window length. like figure 1 As shown, the specific process is as follows:
[0031] 101. Adjust the length of the current scheduling window according to the number of data packets waiting to be sent and the feedback information received last time, where the length of the scheduling window is greater than or equal to 1 and less than or equal to the maximum scheduling window length; where 1 refers to the length of a scheduling window The smallest unit, such as a subframe or frame, etc. E.g:
[0032] If th...
Embodiment 2
[0059] According to the method described in the first embodiment, this embodiment will be further described in detail with an example.
[0060] First, it is necessary to maintain an indicator of uplink and downlink channel quality and a maximum scheduling window length W on the base station side max (t) correspondence table, so that the uplink and downlink can dynamically select the maximum scheduling window length according to the current channel quality. If the channel changes slowly or basically remains unchanged for a period of time, the maximum scheduling window length W max (t) is fixed; if the channel quality indicator indicates that the current channel quality has changed greatly compared with the previous channel quality, then look up the corresponding relationship table according to the channel quality indicator to obtain the updated maximum scheduling window length W max (t).
[0061] Secondly, synchronous ACK / NACK feedback is adopted for both uplink and downlink,...
Embodiment 3
[0100] In order to better implement the above method, the embodiment of the present invention also provides a corresponding communication device, such as Figure 7 As shown, the communication device includes an adjustment unit 301 and a transmission unit 302;
[0101] The adjustment unit 301 is configured to adjust the length of the current scheduling window according to the number of data packets waiting to be sent and the feedback information received last time, wherein the length of the scheduling window is greater than or equal to the minimum unit of a scheduling window length and less than or equal to the maximum scheduling window length;
[0102] The transmission unit 302 is configured to transmit data packets according to the length of the scheduling window adjusted by the adjustment unit 301 .
[0103] Such as Figure 7 As shown, the communication device may further include an acquiring unit 303 and a determining unit 304;
[0104] An obtaining unit 303, configured t...
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