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Method and equipment for improved retransmission

A user equipment, retransmission technology, applied in the directions of non-redundancy-based fault handling, error prevention/detection using return channels, transmission systems, etc., can solve the problems of transmission delay, difficult to obtain timers, expensive timers, etc.

Inactive Publication Date: 2019-03-22
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Using timers for retransmissions is quite expensive due to the need to maintain and control all the timers
In addition, since retransmissions may be delayed not only due to transmission errors, but also due to multi-user scheduling, it is difficult to obtain the correct value of the timer

Method used

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  • Method and equipment for improved retransmission
  • Method and equipment for improved retransmission
  • Method and equipment for improved retransmission

Examples

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Embodiment Construction

[0022] figure 1 A system 100 in which the present invention may be applied is schematically shown. System 100 is a cellular access system, and thus includes a plurality of cells, one of which is at figure 1 is shown with reference numeral 110 .

[0023] The cell 110 comprises at least one radio base station RBS, such as figure 1 Shown in 120. In particular, RBS 120 is used to control traffic to and from users in cell 110 . Cell 110 can accommodate at least one user terminal, figure 1 Two user terminals referenced 130 and 140 are shown in .

[0024] System 100 is shown as a cellular telephone system, and the invention will be described with reference to such a system, but it should be noted that this is by way of example only and that the invention is applicable to a number of different wireless access systems.

[0025] In addition, terms used when describing the present invention with reference to the system 100 are only used to help readers understand the present invent...

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PUM

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Abstract

The invention discloses a method (200) used in a cellular access system (100). The system has a RBS (120) for controlling services running between the cells (110) in a system, and user equipment UE (130, 140) located in the cell. The RBS and the UE receive and transmit information between themselves, one of the RBS and UE is a sender and the other is the receiver; through a first error detection method, the error in the received messages (BSN1, BSN4) can be detected by the receiver; if the error is detected in the received messages, the receiver can request a transmitter to retransmit; the receiver stores an order of a retransmission request, and the receiver can detect the error retransmission without needing the assistance of the first error detection method.

Description

technical field [0001] The present invention discloses a method for use in a cellular access system in which there may be at least one radio base station controlling traffic to and from cells in the system and in which there may be at least one user with User of the device UE. [0002] The RBS and UE can receive and transmit information between each other such that one of them is a sender and the other is a receiver, and an error in a received message can be detected using an error detection method. If an error is detected in a received message, the receiver can request the sender to retransmit the message in which the error was detected. Background technique [0003] In a cellular access system, such as a cellular telephone system, there is at least one cell in which there are one or more users, each user having a user equipment UE with which the user can communicate with the system. The system will also comprise at least one radio base station RBS, in particular for cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/00H04L1/16
CPCH04L1/08G06F11/0709G06F11/0751G06F11/079H04L1/1829H04L1/007H04L1/1642
Inventor Y.廷纳H.阿克塞尔森
Owner TELEFON AB LM ERICSSON (PUBL)
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