A method and apparatus in wireless communication

A wireless signal and signaling technology, which is applied in the field of low-latency transmission based on long-term evolution, and can solve the problem of inability to obtain frequency diversity gain.

Active Publication Date: 2019-12-06
HONOR DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The present invention provides a solution to the problem that the LTE system cannot obtain frequency diversity gain in the process of uplink and downlink resource allocation after the introduction of short TTI

Method used

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  • A method and apparatus in wireless communication
  • A method and apparatus in wireless communication
  • A method and apparatus in wireless communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0170] Embodiment 1 illustrates the flow chart of downlink transmission, as attached figure 1 shown. attached figure 1 In , base station N1 is the maintenance base station of the serving cell of UE U2, and the steps identified in block F1 are optional.

[0171] for base station N1 , the second signaling set is sent in step S11, the first signaling set is sent in step S12, and the first wireless signal is sent in step S13.

[0172] for UE U2 , the second signaling set is received in step S21, the first signaling set is received in step S22, and the first wireless signal is received in step S23.

[0173] In Embodiment 1, the time-domain resource occupied by the first wireless signal belongs to a target time interval, and the target time interval is one of L time intervals, where L is a positive integer greater than 1, and the L The duration of any one of the intervals is less than 1 millisecond. The first wireless signal carries a first bit block, the first bit block inclu...

Embodiment 2

[0181] Embodiment 2 illustrates the flow chart of uplink transmission, as attached figure 2 shown. attached figure 2 In , base station N3 is the maintenance base station of the serving cell of UE U4, and the steps identified in block F2 are optional.

[0182] for base station N3 , the second signaling set is sent in step S31, the first signaling set is sent in step S32, and the first wireless signal is received in step S33.

[0183] for UE U4 , the second signaling set is received in step S41; the first signaling set is received in step S42, and the first wireless signal is sent in step S43.

[0184] In Embodiment 2, the time-domain resource occupied by the first wireless signal belongs to a target time interval, and the target time interval is one of L time intervals, where L is a positive integer greater than 1, and the L The duration of any one of the intervals is less than 1 millisecond. The first wireless signal carries a first bit block, the first bit block inc...

Embodiment 3

[0192] Embodiment 3 illustrates a schematic diagram of the relationship between the target time interval and L time intervals, as attached image 3 shown. in the attached image 3 , each box represents one of the L time intervals, the filled boxes represent the target time interval, the target time interval is one of the L time intervals, and the L time intervals form a A subframe (subframe), the L is a positive integer greater than 1.

[0193] In sub-embodiment 1 of embodiment 3, any one of the L time intervals includes R consecutive OFDM symbols in the time domain, the OFDM symbols include a cyclic prefix, and R is a positive integer.

[0194] In sub-embodiment 2 of embodiment 3, the durations of the L time intervals are the same.

[0195] In sub-embodiment 3 of embodiment 3, the durations of two time intervals among the L time intervals are different.

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Abstract

The invention discloses a method and a device in wireless communication. UE firstly receives a first signaling set, and then the first wireless signal is operated, wherein the first wireless signal occupies a target time interval, and the target time interval is one of L time intervals smaller than 1 millisecond. The first signaling set comprises P downlink signaling. The frequency domain resourceoccupied by the first wireless signal is the first frequency domain resource. The first signaling set is used to determine a second frequency domain resource. at least one of {the positions of the first signaling set and the target time interval in the L time intervals} is used for determining a mapping relationship from the second frequency domain resource to the first frequency domain resource.According to the invention, frequency diversity gain is provided for wireless signals supporting transmission at a time interval of less than 1 millisecond, and the transmission performance is improved.

Description

[0001] This application is a divisional application of the following original application: [0002] -- Filing date of the original application: July 28, 2016 [0003] --Application number of the original application: 201610602967.6 [0004] --The name of the invention of the original application: a method and device in wireless communication technical field [0005] The present invention relates to a transmission scheme in a wireless communication system, in particular to a method and device for low-delay transmission based on Long Term Evolution (LTE-LongTerm Evolution). Background technique [0006] At the 3GPP (3rd Generation Partner Project, third generation partnership project) RAN (Radio Access Network, radio access network) #63 plenary session, it was decided to conduct research on the topic of reducing the delay of the LTE network. The delay of the LTE network includes air interface delay, signal processing delay, and transmission delay between nodes. With the upg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L5/00
CPCH04L5/0053H04W72/0446H04W72/21H04W72/23
Inventor 张晓博
Owner HONOR DEVICE CO LTD
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