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Method and apparatus in node used for wireless communication

A technology of wireless communication and node equipment, which is applied in wireless communication, vehicle wireless communication service, transportation and packaging, and can solve problems such as TXUE conflicts and loss

Active Publication Date: 2021-05-18
SHANGHAI LANGBO COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the PSFCH associated with the PSCCH / PSSCH of the 4 time slots is on the same symbol, when the TX UE sends data in any of the 4 time slots, and in the 4 time slots When receiving data on another time slot, the HARQ-ACK / NACK (Hybrid Automatic Repeat request-Acknowledge / NegativeAcknowlege, hybrid automatic repeat request-positive acknowledgment / negative acknowledgment) feedback for the two data packets is on the same symbol, Then this TXUE will generate a receiving / sending conflict, so that the HARQ-ACK / NACK feedback of a data packet has to be lost; or when two TXUEs send data to the same RX UE in these 4 time slots, for the two The HARQ-ACK / NACK feedback included in the data is also on the same symbol, so if the RX UE cannot send 2 PSFCHs at the same time, it must also lose a HARQ-ACK / NACK feedback

Method used

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  • Method and apparatus in node used for wireless communication
  • Method and apparatus in node used for wireless communication
  • Method and apparatus in node used for wireless communication

Examples

Experimental program
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Effect test

Embodiment 1

[0120] Embodiment 1 illustrates the processing flowchart of the first node of an embodiment of the present application, as shown in the attached figure 1 shown. in the attached figure 1 In , each box represents a step. In Embodiment 1, the first node in this application first executes step 101 to receive the first signaling; then executes step 102 to send the second signaling; finally executes step 103 to send the first signaling in the second time-frequency resource set A signal; the first signaling is used to determine the first identity and the first priority; the second signaling is used to indicate the second identity and the second priority; the second time-frequency resource set belongs to A target resource subpool; the first signaling is used to determine a reference time-frequency resource set, the first time-frequency resource set is related to the reference time-frequency resource set, and the second signaling is used to indicate the first time-frequency resource ...

Embodiment 2

[0246] Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as attached figure 2 shown.

[0247] attached figure 2 A diagram illustrating a network architecture 200 of 5G NR, LTE (Long-Term Evolution, long-term evolution) and LTE-A (Long-Term Evolution Advanced, enhanced long-term evolution) systems. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System, Evolved Packet System) 200 or some other suitable terminology. 5GS / EPS 200 may include one or more UE (User Equipment, user equipment) 201, NG-RAN (next generation radio access network) 202, 5GC (5G Core Network, 5G core network) / EPC (Evolved Packet Core, Evolved Packet Core) 210, HSS (Home Subscriber Server, Home Subscriber Server) / UDM (Unified Data Management, Unified Data Management) 220 and Internet service 230. 5GS / EPS can be interconnected with other access networks, but not shown for simplicity These entitie...

Embodiment 3

[0265] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached image 3 shown. image 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, image 3 Three layers are used to show the control plane 300 for the first communication node device (UE, gNB or RSU in V2X) and the second communication node device (gNB, UE or RSU in V2X), or between two UEs Radio Protocol Architecture: 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 the PHY 301 and is responsible for the link between the first communication node device and the second communication node device and the two UEs through the PHY 301 . The ...

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Abstract

The invention discloses a method and an apparatus in a node used for wireless communication. A first node receives a first signaling, sends out a second signaling, and sends out a first signal in a second time-frequency resource set, wherein the second time-frequency resource set belongs to a target resource sub-pool, the first signaling is used for determining a first identifier, a first priority and a reference time-frequency resource set; the first time-frequency resource set is related to the reference time-frequency resource set; the second signaling is used for indicating a second identifier, a second priority and the second time-frequency resource set; the relationship between the first transmission node device recognized by the first identifier and the second transmission node device recognized by the second identifier, the first priority and the second priority are jointly used for determining whether the first time-frequency resource set belongs to the target resource sub-pool. According to the invention, the problems of resource waste and transmission delay caused by PSFCH conflicts in an NR V2X system are effectively solved.

Description

technical field [0001] The present application relates to a transmission method and device in a wireless communication system, in particular to a sidelink-related transmission scheme and device in wireless communication. Background technique [0002] The application scenarios of future wireless communication systems are becoming more and more diversified, and different application scenarios put forward different performance requirements for the system. In order to meet the different performance requirements of various application scenarios, the new air interface technology (NR, NewRadio ) (or Fifth Generation, 5G) for research, passed NR's WI (WorkItem, work item) at the 3GPPRAN#75 plenary meeting, and started to standardize NR. [0003] For the rapidly developing Vehicle-to-Everything (V2X) service, 3GPP has also started the standard formulation and research work under the framework of NR. At present, 3GPP has completed the formulation of requirements for 5G V2X services ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L1/18H04W4/40H04W72/04H04W72/10
CPCH04L5/0055H04L5/0092H04L1/1812H04W4/40H04W72/20H04W72/56H04L1/18H04W72/04H04L5/0051Y02D30/70H04L5/0064
Inventor 刘瑾张晓博
Owner SHANGHAI LANGBO COMM TECH CO LTD
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