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Method and device in user equipment and base station used for wireless communication

A technology for user equipment and wireless communication, applied in the directions of wireless communication, pilot signal allocation, multiple use of transmission paths, etc.

Active Publication Date: 2020-01-21
SHANGHAI LANGBO COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the NR (New Radio, new radio) system, more application scenarios need to be supported, and some application scenarios, such as URLLC (Ultra-Reliable and LowLatency Communications, ultra-reliable and low-latency communications), put forward a lot of delay high requirements, but also poses new challenges to inter-cell handover

Method used

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  • Method and device in user equipment and base station used for wireless communication
  • Method and device in user equipment and base station used for wireless communication
  • Method and device in user equipment and base station used for wireless communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0157] Embodiment 1 illustrates the flowchart of the first wireless signal and the first signaling; as attached figure 1 shown.

[0158] In Embodiment 1, the user equipment in this application sends a first wireless signal; and monitors first signaling in each time-frequency resource block in W time-frequency resource blocks. Wherein, the first radio signal indicates the first reference signal from M reference signals; at least one reference signal among the M reference signals is sent by the first serving cell, and the first serving cell is not used by the user Equipment addition; the user equipment assumes that the transmitting antenna port of the first signaling and the transmitting antenna port of the first reference signal are quasi-co-located; the W is a positive integer, and the M is a positive integer greater than 1.

[0159] As an embodiment, the first wireless signal includes a RACH (Random Access Channel, random access channel) preamble (Preamble).

[0160] As an ...

Embodiment 2

[0199] Embodiment 2 illustrates the schematic diagram of network architecture, as attached figure 2 shown.

[0200] attached figure 2The network architecture 200 of LTE (Long-Term Evolution, long-term evolution), LTE-A (Long-Term Evolution Advanced, enhanced long-term evolution) and a future 5G system is described. The network architecture 200 of the LTE, LTE-A or 5G system may be referred to as an EPS (Evolved Packet System, evolved packet system) 200 . EPS 200 may include one or more UE (User Equipment, User Equipment) 201, E-UTRAN-NR (Evolved UMTS Terrestrial Radio Access Network-New Radio) 202, 5G-CN (5G-CoreNetwork, 5G core network) / EPC (Evolved Packet Core, Evolved Packet Core) 210 , HSS (Home Subscriber Server, Home Subscriber Server) 220 and Internet service 230 . Among them, UMTS corresponds to Universal Mobile Telecommunications System (Universal Mobile Telecommunications System). EPS 200 may be interconnected with other access networks, but these entities / int...

Embodiment 3

[0208] Embodiment 3 illustrates a schematic diagram of an embodiment of the wireless protocol architecture of the user plane and the control plane, as shown in the attached image 3 shown.

[0209] attached image 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane and a control plane, with image 3 The radio protocol architecture for UE and gNB is shown with three layers: Layer 1, Layer 2 and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. The L1 layer will be referred to herein as PHY 301 . Layer 2 (L2 Layer) 305 is above PHY 301 and is responsible for the link between UE and gNB through PHY 301 . In the user plane, the L2 layer 305 includes MAC (Medium Access Control, Media Access Control) sublayer 302, RLC (Radio Link Control, Radio Link Layer Control Protocol) sublayer 303 and PDCP (Packet Data Convergence Protocol, packet data convergence protoc...

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Abstract

The invention discloses a method and a device in user equipment and a base station used for wireless communication. The user equipment sends a first wireless signal, wherein the first wireless signalindicates a first reference signal from M reference signals; a first signaling is monitored in each of the W time-frequency resource blocks, respectively, wherein at least one reference signal in theM reference signals is sent by a first serving cell, and the first serving cell is not added by the user equipment; the user equipment assumes that a sending antenna port of the first signaling and asending antenna port of the first reference signal are quasi-co-located; wherein W is a positive integer, and M is a positive integer greater than 1. According to the method, time delay and service interruption caused by switching between cells are avoided.

Description

technical field [0001] The present application relates to a method and a device in a wireless communication system, in particular to a method and a device in a wireless communication system supporting multiple antennas. Background technique [0002] In the LTE system, inter-cell handover (Handover) is controlled by the base station based on UE (User Equipment, user equipment) measurement. The inter-cell handover in 3GPP (3rd Generation Partner Project, third generation partnership project) R (Release, version) 15 basically follows the mechanism in LTE. In the NR (New Radio, new radio) system, more application scenarios need to be supported, and some application scenarios, such as URLLC (Ultra-Reliable and LowLatency Communications, ultra-reliable and low-latency communications), put forward a lot of delay At the same time, it also poses new challenges for inter-cell handover. [0003] In the NR system, Massive MIMO (Multiple Input Multiple Output, Multiple Input Multiple O...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/04H04W74/08
CPCH04L5/0094H04L5/0048H04L5/0023H04W72/046H04W72/0446H04W72/0453H04W74/0891H04W72/23H04W36/0094H04L5/0051H04W24/10H04W72/02H04W92/10H04W72/53
Inventor 吴克颖张晓博杨林
Owner SHANGHAI LANGBO COMM TECH CO LTD
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