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Method, UE and base station for transmitting periodic signal/periodic system information and method and base station for forwarding periodic system information

A system information, periodic technology, applied in transmission systems, digital transmission systems, wireless communications, etc., can solve problems such as subframe division restrictions

Active Publication Date: 2019-04-26
ERICSSON (CHINA) COMMUNICATION COMPANY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] Therefore, the feasible subframe division is subject to many restrictions, and thus only certain patterns (such as periodicity) can be used to maintain dual connectivity in a TDM manner

Method used

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  • Method, UE and base station for transmitting periodic signal/periodic system information and method and base station for forwarding periodic system information
  • Method, UE and base station for transmitting periodic signal/periodic system information and method and base station for forwarding periodic system information
  • Method, UE and base station for transmitting periodic signal/periodic system information and method and base station for forwarding periodic system information

Examples

Experimental program
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example 1

[0099] Example 1 - CSI reporting using PUCCH

[0100] When the UE sends CSI to the macro eNB in ​​subframe 4, the next CSI will be sent to the macro eNB in ​​subframe 12 (not in subframe 9 calculated based on the 5ms period according to Rel-11).

[0101] Although the example is given here with reference to CSI, it applies equally to PMI, RI, etc.

no. 1 example

[0102] According to a first embodiment, the present disclosure may delay periodic transmissions (such as periodic channel state reports using PUCCH, SRS, and periodic UL transmissions scheduled via SPS) to the latest valid subframe available in the set of subframes of interest. frame, thereby avoiding inconsistencies between periodic transmission / reception and subframe division schemes.

[0103] Figure 4 A flow chart of a method 400 used in a first base station for sending a periodic signal to a UE according to a second embodiment of the present disclosure is shown. Here the UE has communicated with the second base station. That is, the UE is a TDM UE.

[0104] Such as Figure 4 As shown, in step S410, the first base station obtains the subframe configuration from the second base station. The subframe configuration indicates a first set of subframes assigned to communication between the UE and the first base station and a second set of subframes assigned to the communicat...

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Abstract

The present disclosure relates to a method used in a UE for sending a periodic signal to a first base station and the related UE. The UE is already communicating with a second base station. The method includes acquiring a subframe configuration from a second base station, the subframe configuration indicating a first set of subframes and a second set of subframes, the first set of subframes being assigned to a communication between the UE and the first base station communication, the second set of subframes is assigned to communication between the UE and the second base station; and if the given uplink subframe in which the periodic signal is to be transmitted to the first base station is not in the first subframe set, the periodic signal is sent in the first available uplink subframe after the given uplink subframe in the first set of subframes. The present disclosure also relates to a method used in a first base station for transmitting a periodic signal / periodic system information thereof to a UE and the related first base station; and a method used in a second base station for sending a periodic signal to a UE A UE forwarding method and a related second base station.

Description

technical field [0001] The techniques presented in this disclosure generally relate to wireless communication networks. More specifically, the present disclosure relates to a method for transmitting a periodic signal to a first base station used in a user equipment (UE) already connected to the first base station and the related UE; a method used in the first base station A method for transmitting a periodic signal / periodic system information thereof to a UE that has communicated with a second base station and the associated first base station; and a method used in the second base station for transmitting a UE that has communicated with the second base station Method for a communicating UE to forward periodic information addressed to a first base station of the UE and an associated second base station. Background technique [0002] This section is intended to provide background to various embodiments of the techniques described in this disclosure. The descriptions in this ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/04
CPCH04W72/04H04W84/045H04L5/0094H04W76/15H04W72/21H04W72/23H04W74/004H04W88/02H04L5/001
Inventor 张浩川范锐李韶华卢前溪宋兴华
Owner ERICSSON (CHINA) COMMUNICATION COMPANY LTD