Vent resource allocation method for RLC (radio link control) layer, poll position retransmission method for same, vent resource allocation device for same and poll position retransmission device for same
A technology of air interface resources and polling bits, applied in the field of 3GPP LTE, can solve problems such as low effectiveness and transmission, and achieve the effect of improving utilization efficiency
Active Publication Date: 2014-11-05
LEADCORE TECH
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[0013] If there are currently data to be transmitted on other logical channels, then the above-mentioned prior art method undoubtedly uses limited air interface resources to transmit some data that is not highly effective, but does not give priority to transmitting real data on other logical channels. More efficient data transmission
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[0032] exist figure 1 In the protocol layer logic of the LTE terminal equipment shown, the RLC (Radio Link Control) layer 20 is located below the RRC (Radio Resource Control) layer 10 and above the MAC (Media Access Control) layer 30 .
[0033] The logical channel is located between the RLC layer 20 and the MAC layer, and the MAC layer provides data transmission services on the logical channel. Logical channels are divided according to the types of data transmission services provided by the MAC layer. Logical channels are generally divided into two categories: control channels and traffic channels. Control channels are only used for the transmission of control plane information, including Broadcast Control Channel (BCCH), Paging Control Channel (PCCH), Common Control Channel (CCCH), Dedicated Control Channel (DCCH), and Shared Channel Control Channel (SHCCH). Traffic channels are only used for the transfer of user plane channels, including: dedicated traffic channel (DTCH) a...
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The invention relates to a vent resource allocation method for an RLC (radio link control) layer, a poll position retransmission method for the same, a vent resource allocation device for the same and a poll position retransmission device for the same. The vent resource allocation method includes the steps of after an RLC poll retransmission timer of one of a plurality of logical signal channels is detected in overtime, determining whether the current logical signal channel has data to be retransmitted or not when the RLC poll retransmission timer is in overtime, wherein if the current logical signal channel has the data to be retransmitted, poll positions are loaded into a first carrier comprising the data to be retransmitted and the first carrier is retransmitted; and if when the current logical signal channel has no data to be retransmitted, a minimum length space is reserved for the current logical signal channel for sufficiently retransmitting a second carrier, the space length required by the second carrier is smaller than that of the first carrier, and the second carrier carrying the poll positions is retransmitted by the current logical signal channel. Therefore, vent resources can be more effectively allocated by judging whether the logical signal channel with the RLC poll retransmission timer in overtime has practical needs for vent sources or not.
Description
technical field [0001] The invention relates to 3GPP LTE technology, in particular to a polling bit retransmission method and device of a radio link control protocol layer (RLC, Radio Link Control). Background technique [0002] The Radio Link Control (RLC, Radio Link Control) protocol layer is a sublayer of Layer 2 (L2) in the wireless interface protocol stack of the LTE system, and is located above the Media Access Control (MAC, Media Access Control) layer. The RLC layer is mainly used to provide segmentation and retransmission services, such as link control, encapsulation and reassembly, concatenation, user data transmission, error correction, protocol error detection and repair, etc. Each RLC entity is configured by Radio Resource Control (RRC, Radio Resource Control) and operates in three modes: Transparent Mode (TM, Transparent Mode), Unacknowledged Mode (UM, Unacknowledged Mode) and Acknowledged Mode (AM, Acknowledged Mode) . [0003] In terms of acknowledgment mode...
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IPC IPC(8): H04W28/04H04W28/26H04W74/06H04L1/18
Inventor 崔心发甘慧彦任荣辉
Owner LEADCORE TECH