JP-7855697-B2 - Resource coexistence method and apparatus

Inventors

• 畢 峰
• 盧 有 雄
• ▲シン▼ 衛 民
• 苗 ▲ティン▼

Assignees

• 中興通訊股▲ふん▼有限公司

Dates

Publication Date

20260508

Application Date

20230320

Priority Date

20220329

Claims (15)

1. The first node includes the step of determining the LTE V2X or NR V2X time-frequency resources to be used by a reporting or voluntary method, The reporting method includes reporting from the first node to the second node, or reporting from the physical layer of the first node to the upper layer of the first node. If resource contention or interference exists between LTE V2X and NR V2X, the upper layer of the second node or the first node selects one set of NR V2X time resources from multiple sets of pre-configured NR V2X time resources, or the upper layer of the second node or the first node selects one set of NR V2X frequency resources from multiple sets of pre-configured NR V2X frequency resources. A resource coexistence method characterized by the following.
2. The report included the following: Whether or not resource contention exists, Types of resource contention, Whether or not interference exists, Type of interference, Interference level, Location of the time-frequency resource of interference, Location of desired or candidate time-frequency resources, Whether or not to reduce the desired power, The desired power reduction includes at least one of either the absolute power value or the relative power value. The method according to feature 1.
3. The type of resource conflict includes at least one of the following: a conflict between an LTE V2X transmission resource and an NR V2X transmission resource; a conflict between an LTE V2X transmission resource and an NR V2X reception resource; a conflict between an LTE V2X reception resource and an NR V2X transmission resource; or a conflict between an LTE V2X reception resource and an NR V2X reception resource. The method according to feature 2.
4. The type of interference includes at least one of interference from NR V2X to LTE V2X, and interference from LTE V2X to NR V2X. The method according to feature 2.
5. The level of interference is classified into one or more interference levels based on one or more thresholds. The threshold includes at least one of the received signal power and the received signal strength. The method according to feature 2.
6. The segmented time resources include those used exclusively by LTE V2X, those used exclusively by NR V2X, and those shared by both LTE V2X and NR V2X. The method according to feature 1 .
7. The granularity of time resources includes at least one of the following: short slot, slot, subframe, half frame, and wireless frame. The method according to feature 6 .
8. The segmented frequency resources include those used exclusively for LTE V2X, those used exclusively for NR V2X, and those shared by both LTE V2X and NR V2X. The method according to feature 1 .
9. The granularity of frequency resources includes at least one of the following: resource blocks, resource block groups, partial bandwidths, subchannels, subbands, carriers, and frequency bands. The method according to feature 8 .
10. When LTE V2X and NR V2X employ frequency division multiplexing for coexistence, A method for determining power allocation based on the priority of LTE V2X and NR V2X, A method of allocating power alternately to LTE V2X and NR V2X with priority, A method of allocating power with priority to LTE V2X, One of the methods for allocating power with priority to NR V2X is to allocate power to LTE V2X and NR V2X. The method according to feature 2.
11. The first node autonomously determines the time-frequency resources of the LTE V2X or NR V2X to be used. If resource contention or interference exists between LTE V2X and NR V2X, the process includes the step of selecting one set of NR V2X time resources from multiple pre-configured sets of NR V2X time resources. The method according to feature 1.
12. The first node autonomously determines the time-frequency resources of the LTE V2X or NR V2X to be used. The NR V2X module of the first node monitors the NR V2X SCI of other nodes and notifies the LTE V2X module of the first node of the location of available time-frequency resources. The LTE V2X module of the first node includes the step of using the available time-frequency resources, The method according to feature 1.
13. The first node autonomously determines the time-frequency resources of the LTE V2X or NR V2X to be used. The NR V2X module of the first node monitors the LTE V2X SCI of other nodes to obtain available time-frequency resources, The NR V2X module of the first node includes the step of using the available time-frequency resources, The method according to feature 1.
14. A computer-readable storage medium on which computer programs are stored, When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 13 are realized. A computer-readable storage medium characterized by the following features.
15. It includes memory, a processor, and a computer program stored in the memory and executable by the processor, When the processor executes the computer program, the steps of the method according to any one of claims 1 to 13 are realized. An electronic device characterized by the following features.

Description

The embodiments of this invention relate to the field of communications, and more specifically, to a method and apparatus for resource coexistence. With the continuous advancement of wireless technology, a large number of diverse wireless services have emerged. LTE (Long Term Evolution) and NR (New Radio) systems include not only cellular services between base stations and terminals, but also, for example, V2X (Vehicle to anything) services, which are abbreviated as LTE V2X, LTE-V, or LTE Sidelink in the LTE system, and NR V2X, NR-V, or NR Sidelink in the NR system. The link used for V2X service communication is called an SL (Side link). When it is necessary to transmit services between devices, the service data between devices is not forwarded via other network devices, but is transmitted directly from the data source device to the target device. In other words, the devices communicate directly with each other, and the device in question is a UE (User Equipment) with V2X functionality. SL can be classified into three main types of communication scenes: the first type of scene (in coverage) where both the data source device and the target device are within the base station's coverage; the second type of scene (partial coverage) where one of the data source device or the target device is within the base station's coverage but the other is outside of it; and the third type of scene (out of coverage) where both the data source device and the target device are outside of the base station's coverage. Sidelink (SL) can be classified into two main communication modes: a first mode (abbreviated as Mode 3 in LTE and Mode 1 in NR) where the resources for transmitting sidelink signals originate from the base station's scheduling, and a second mode (abbreviated as Mode 4 in LTE and Mode 2 in NR) where the equipment autonomously selects resources from a resource pool configured or pre-configured on the network based on a resource selection policy. Resource selection policies mainly include sensing mechanisms, partial sensing mechanisms, and random selection mechanisms. In the latest V2X deployment scenarios for NR systems, it is necessary to consider the coexistence of LTE V2X and NR V2X equipment within the same frequency resource. This "same frequency resource" broadly refers to the same carrier, the same frequency band, etc. To allow two different types of equipment to coexist within the same frequency resource, a mechanism is needed that effectively utilizes the resource without adversely affecting the operation of both devices, and avoids interference that occurs when resources coexist. This is a block diagram showing the hardware structure of a mobile terminal that implements the resource coexistence method according to an embodiment of the present invention.This is a flowchart of a resource coexistence method according to an embodiment of the present invention.This is a flowchart of the reporting method according to an embodiment of the present invention.This is a flowchart of another reporting method according to an embodiment of the present invention.This is a schematic flowchart of an autonomous method according to an embodiment of the present invention.This figure shows the modular structure of a resource coexistence device according to an embodiment of the present invention. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Furthermore, the terms "first,""second," etc., used in the specification, claims, and drawings of this invention are intended to distinguish similar objects and are not intended to describe a specific order or sequence. The method embodiments provided in the embodiments of this application can be executed on a mobile terminal, computer terminal, or similar computing device. Taking execution on a mobile terminal as an example, Figure 1 is a block diagram showing the hardware structure of a mobile terminal executing the resource coexistence method according to an embodiment of the present invention. As shown in Figure 1, the mobile terminal may include one or more (only one is shown in Figure 1) processors 102 (the processors 102 include, but are not limited to, processing units such as a microprocessor MCU or a programmable logic device FPGA) and memory 104 for storing data, but the mobile terminal may further include a transmission device 106 and an input/output device 108 used for communication functions. As those skilled in the art will understand, the structure shown in Figure 1 is merely illustrative and does not limit the structure of the mobile terminal. For example, the mobile terminal may further include more or fewer components than those shown in Figure 1, or have a different configuration than that shown in Figure 1. Memory 104 is used to store computer programs, such as software programs and modules of application software, including computer programs corresponding to the resource coexistence method in the embodiment