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Method, base station and user equipment for determining channel loss

A technology of channel loss and user equipment, applied in the field of communication, can solve the problem that the base station cannot know the channel loss of UE

Active Publication Date: 2018-01-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method for determining channel loss, a base station and user equipment, which are used to solve the problem in the prior art that the base station cannot know the channel loss of the UE

Method used

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  • Method, base station and user equipment for determining channel loss
  • Method, base station and user equipment for determining channel loss
  • Method, base station and user equipment for determining channel loss

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0265] This embodiment provides an enhanced transmission method, which can be used to enhance random access preamble transmission in contention random access, and the method will be described in detail below.

[0266] The base station determines N (N>1) random access preamble groups for the first UE, and the N random access preamble groups may be divided among all random access preambles used for contention, or may be divided among some The contention is divided in the random access preamble.

[0267]The following are some examples of how to divide random access leader groups:

[0268] The first type: the base station determines N (N>1) random access preamble groups for the first UE, and the N random access preamble groups may be divided among all the random access preambles used for contention.

[0269] In this method, the number of random access preambles used for contention may not be configured, or may be configured through RRC common signaling (such as through system inf...

Embodiment 2

[0312] This embodiment provides an enhanced transmission method, which can be used for contention random access. In this embodiment, there is no need to group preambles. The implementation process of this embodiment will be described below.

[0313] 1) The system, the base station, or other network-side entities divide the value of the channel loss between the base station and the first UE into N ranges in advance, and the division information of the channel loss value into N ranges can be obtained by the base station through the RRC public information signaling, RRC dedicated signaling, MAC CE signaling, and physical layer signaling to the first UE, or the base station and the first UE determine the channel loss value according to pre-agreed rules N ranges. The division method is the same as that in Embodiment 1. The channel loss may be reference signal received power RSRP, reference signal received quality RSRQ, path loss calculated through RSRP or RSRQ, or channel qualit...

Embodiment 3

[0320] This embodiment provides an enhanced transmission method, which can be used for non-contention random access. The implementation process of this embodiment will be described below.

[0321] This embodiment is applicable to the following two situations:

[0322] 1) During handover, the terminal needs to establish uplink synchronization with the target cell.

[0323] The source base station can configure the first UE to measure RSRP, RSRQ, CQI, or path loss of neighboring cells. After the first UE establishes an RRC connection with the source base station through a random access procedure, it can use the measured RSRP, RSRQ, and The CQI or path loss is reported to the source base station, and the source base station also obtains the RSRP, RSRQ, CQI, or path loss of the neighboring cell (for example, the target cell).

[0324] In this embodiment, when the first UE needs to perform handover, the source base station tells the target base station the range of the RSRP, RSRQ...

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Abstract

The present application discloses a method for determining channel loss, a base station and user equipment, the method comprising: receiving first information corresponding to the range of the first UE channel loss value from a first user equipment UE; according to the The first information is to determine the range of the channel loss value of the first UE. Through the present application, the base station can know the range of the channel loss value of the first UE, so as to perform data transmission according to the range, and improve the communication quality between the base station and the first UE.

Description

technical field [0001] The present application relates to the communication field, and in particular to a method for determining channel loss, a base station and user equipment. Background technique [0002] The Internet of Things is a network that realizes the interconnection and intercommunication of people and things, and things and things (Machine to Machine, M2M for short). The 3rd Generation Partnership Project (referred to as 3GPP) specially set up a project team to study a low-cost machine type communication (Machine Type Communication, referred to as LTE) based on Long Term Evolution (referred to as LTE). MTC), this type of communication can be used for IoT. [0003] The research on LTE-based low-cost MTC mainly considers the enhancement or optimization of LTE network and air interface for the introduction of MTC equipment. Among them, the coverage problem is one of the key concerns of operators. An important application of an MTC terminal (User Equipment, referre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08H04W72/54
CPCH04B17/309H04W72/542H04L43/0835H04W24/08
Inventor 余政南方张宁波程型清
Owner HUAWEI TECH CO LTD