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High-level transmission method and device used in base station and UE (User Equipment)

A technology of serial number and bit group, applied in the direction of transmission modification based on link quality, adjustment of transmission mode, transmission system, etc., can solve problems such as packet loss and inability to correctly interpret the serial number of protocol data packets.

Inactive Publication Date: 2018-09-07
SHANGHAI LANGBO COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Switching between the two will cause one of them to be unable to correctly interpret the serial number of the protocol data packet of the other, which will cause packet loss

Method used

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  • High-level transmission method and device used in base station and UE (User Equipment)
  • High-level transmission method and device used in base station and UE (User Equipment)
  • High-level transmission method and device used in base station and UE (User Equipment)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0275] Embodiment 1 illustrates a flow chart of a transmission initiated by the first node, as shown in the attached figure 1 shown. attached figure 1 In , the base station N1 and the base station N2 are the maintenance base stations of the serving cell of the user equipment UE U3. figure 1 Describe the scenario of uplink transmission.

[0276] for base station N1 , the first bit group is received in step S10, the first sequence number is mapped to the second sequence number in step S11, and the second bit group is received in step S12. The first bit group includes {the first serial number, the first bit sequence}. The second bit group includes {the second sequence number, the first bit sequence}.

[0277] for base station N2 , receiving the first type of bit group in step S20, and sending the first bit group in step S21. The first type of bit group includes {the first type of serial number, and the bit sequence associated with the first type of serial number}. The f...

Embodiment 2

[0325] Embodiment 2 illustrates another flow chart of the transmission initiated by the first node, as shown in the attached figure 2 shown. attached figure 2 In , the base station N4 and the base station N5 are the maintenance base stations of the serving cell of the user equipment UE U6. figure 2 Describe the scenario of downlink transmission.

[0326] for base station N4 , the first bit group is received in step S40, the first sequence number is mapped to the second sequence number in step S41, and the second bit group is sent in step S42. The first bit group includes {the first serial number, the first bit sequence}. The second bit group includes {the second sequence number, the first bit sequence}.

[0327] for Base station N5 , the second type of bit group is sent in step S50, and the first bit group is sent in step S51. The first bit group includes {the first serial number, the first bit sequence}. The second-type bit group includes {second-type serial numb...

Embodiment 3

[0379] Embodiment 3 illustrates a flow chart of the transmission initiated by the second node, as shown in the attached image 3 shown. attached image 3 In , the base station N7 and the base station N8 are the maintenance base stations of the serving cell of the user equipment UE U9. image 3 Describe the scenario of uplink transmission.

[0380] for base station N7 , the first bit group is received in step S70, and the second bit group is received in step S71. The first bit group includes {the first serial number, the first bit sequence}. The second bit group includes {the second sequence number, the first bit sequence}.

[0381] for base station N8 , in step S80 the second type of bit group is received, in step S81 the second sequence number is mapped to the first sequence number, in step S82 the first bit group is sent. The second-type bit group includes {second-type serial number, bit sequence associated with the second-type serial number}. The first bit group i...

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Abstract

The invention discloses a high-level transmission method and device used in a base station and UE (User Equipment). The UE maps a first sequence number into a second sequence number, wherein the firstsequence number is an integer in a first set, and the second sequence number is an integer in a second set; the first set comprises K1 integers, and the second set comprises K2 integers; the first set is a subset of the second set; the K1 and the K2 are respectively positive integers, and the K1 is less than the K2; and both the first sequence number and the second sequence number correspond to afirst bit sequence. The high-level transmission method used in the base station and the UE can ensure that no packet loss is caused during reassortment of a second cell group when a user switches cells or during dual linking. Furthermore, the method enables the sequence numbers of transmitted or received data packets to be continuous when the base station or the UE sends switching or dual linkingreassortment.

Description

technical field [0001] The present invention relates to a transmission scheme in a wireless communication system, in particular to a method and a device for supporting high-level protocols in wireless communication. Background technique [0002] In the existing LTE (Long Term Evolution), each high-level protocol data packet (PDU, Protocol Data Unit) has a corresponding sequence number (SN, Sequence Number). The length of the serial number is configured by the upper layer, and the length of the serial number is different under different configurations. In the LTE-NR (New Radio) tightly coupled communication (tight interworking) scenario, the network-side device and the user equipment need to reconfigure higher-level entities (such as PDCP entities) in the following situations: [0003] Reconfigure the second cell group bearer (SCG bearer, Second Cell Group); [0004] When switching between LTE and NR, high-level entities (such as PDCP, Packet DataConvergence Protocol entiti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04W28/02H04W36/00H04W36/18
CPCH04L1/0007H04W28/0263H04W36/0011H04W36/18
Inventor 张晓博
Owner SHANGHAI LANGBO COMM TECH CO LTD
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