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Methods applied to user equipment and base station for wireless communication, and devices

A wireless communication and wireless signal technology, applied in radio transmission system, signaling distribution, diversity/multi-antenna system, etc., can solve the problem that the accuracy is difficult to meet the multi-antenna transmission

Active Publication Date: 2019-01-04
SHANGHAI LANGBO COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the 5G system, with the increase in the number of antennas equipped on the base station side, the accuracy of traditional implicit CSI feedback is difficult to meet the needs of multi-antenna transmission

Method used

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  • Methods applied to user equipment and base station for wireless communication, and devices
  • Methods applied to user equipment and base station for wireless communication, and devices
  • Methods applied to user equipment and base station for wireless communication, and devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0430] Embodiment 1 illustrates the flowchart of the first reference signal, the first information, the first channel information, the second channel information and the third channel information, as shown in the attached figure 1 shown.

[0431] In Embodiment 1, the user equipment in this application first receives a first reference signal, and then sends first information, where the first information is used to determine a first integer. If the first integer is equal to 1, the user equipment sends first channel information and second channel information; otherwise, the user equipment sends third channel information. Wherein, the first integer is greater than 0, the measurement of the first reference signal is used to determine the first integer, the second channel information is used to determine L1 first-type vectors, and the first The channel information is used to determine the L1, the third channel information is used to determine L2 first-type vectors, the L1 and the L...

Embodiment 2

[0527] Embodiment 2 illustrates the schematic diagram of network architecture, as attached figure 2 shown.

[0528] 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 LTE network architecture 200 may be called EPS (Evolved Packet System, evolved packet system) 200 . EPS 200 may include one or more UE (User Equipment, User Equipment) 201, E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, EPC (Evolved Packet Core, Evolved Packet Core) 210, HSS (Home Subscriber Server, Home Subscriber Server) 220 and Internet Services 230. Among them, UMTS corresponds to Universal Mobile Telecommunications System (Universal Mobile Telecommunications System). The EPS may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. as attached figure 2 As shown, the EPS provides pack...

Embodiment 3

[0532] 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.

[0533] 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 eNB 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 eNB 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 present invention discloses methods applied to user equipment and a base station for wireless communication, and devices. According to the methods and devices, the user equipment receives first reference signals and then transmits first information, wherein the first information is used to determine a first integer; if the first integer is equal to 1, first channel information and second channel information are transmitted, otherwise, third channel information is transmitted; if the first integer is greater than 0, measurement for the first reference signals is used to determine the firstinteger; the second channel information is used to determine L1 first class vectors; the first channel information is used to determine the L1; the third channel information is used to determine L2 first class vectors; the L1 and the L2 are respectively positive integers; and the L1 is not greater than the L2. With the above methods adopted, a user is allowed to optimize a feedback mechanism according to an actual channel state on the basis of different feedback content and feedback overhead, and therefore, the accuracy of feedback can be improved, and the overhead of the feedback can be reduced.

Description

technical field [0001] The present application relates to a wireless signal transmission method and device in a wireless communication system, especially a wireless signal transmission method and device in a wireless communication system supporting multi-antenna transmission. Background technique [0002] In a wireless communication system supporting multi-antenna transmission, it is a common technique for a UE (User Equipment, user equipment) to feed back CSI (Channel Status Information, channel state information) to assist a base station in multi-antenna processing. In a traditional 3rd Generation Partnership Project (3GPP-3rd Generation Partner Project) cellular network system, implicit (Implicit) CSI feedback is supported. [0003] In a 5G system, with the increase in the number of antennas equipped on the base station side, the accuracy of traditional implicit CSI feedback cannot meet the requirements of multi-antenna transmission. Therefore, 3GPP R (Release, version) ...

Claims

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Application Information

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IPC IPC(8): H04L1/06H04L5/00H04B7/06
CPCH04B7/0626H04L1/0675H04L5/0053
Inventor 吴克颖
Owner SHANGHAI LANGBO COMM TECH CO LTD
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