CN111614449B - Method for transmitting pilot signal and relay node - Google Patents
Method for transmitting pilot signal and relay node Download PDFInfo
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- CN111614449B CN111614449B CN201910345641.3A CN201910345641A CN111614449B CN 111614449 B CN111614449 B CN 111614449B CN 201910345641 A CN201910345641 A CN 201910345641A CN 111614449 B CN111614449 B CN 111614449B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
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Abstract
The embodiment of the invention discloses a method for transmitting pilot signals and a relay node, wherein the method comprises the following steps: if the transmission of the first pilot signal and the reception of the second pilot signal conflict, determining the priority of first configuration information and second configuration information, wherein the first configuration information is used for configuring the transmission time of the first pilot signal, the second configuration information is used for configuring the reception time of the second pilot signal, the first pilot signal is received by the relay node, and the second pilot signal is received by the terminal equipment; and performing pilot signal transmission operation matched with the priority determination result. The method of the embodiment of the invention can avoid the problem that the transmission and receiving conflict of the pilot signal affects the accuracy of the measurement of the pilot signal of the relay node and the terminal equipment, and improves the communication effectiveness.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and a relay node for transmitting pilot signals.
Background
In a Relay (Relay) technology in a wireless communication system, one or more Relay nodes are added between a network device and a terminal device and are responsible for forwarding a wireless signal once or multiple times, namely the wireless signal can reach the terminal device only through multiple hops. Fig. 1 shows a 4-hop wireless relay link. In fig. 1, the signal is forwarded from a host (douor) base station to a terminal Equipment (UE) through 3 relay nodes.
In a wireless communication system provided with a relay node, two kinds of measurement configuration information exist simultaneously, one is used for measuring a pilot signal by a terminal device, the other is used for measuring the pilot signal by the relay node, and the simultaneous existence of the two kinds of measurement configuration information can cause conflict between the receiving and transmitting of the pilot signal, so that the accuracy of the measurement of the pilot signal of the relay node and the measurement of the pilot signal of the terminal device is influenced, and the communication effectiveness is influenced.
Disclosure of Invention
An object of the embodiments of the present invention is to provide a method for transmitting a pilot signal and a relay node, so as to solve the problem that the accuracy of pilot signal measurement of the relay node and pilot signal measurement of a terminal device are affected due to transmission and reception conflicts of the pilot signal.
In order to solve the above problems, the embodiments of the present invention are implemented as follows:
in a first aspect, a method of transmitting a pilot signal is provided, the method comprising:
if the transmission of the first pilot signal and the reception of the second pilot signal conflict, determining the priority of first configuration information and second configuration information, wherein the first configuration information is used for configuring the transmission time of the first pilot signal, the second configuration information is used for configuring the reception time of the second pilot signal, the first pilot signal is received by the relay node, and the second pilot signal is received by the terminal equipment;
and performing pilot signal transmission operation matched with the priority determination result.
In a second aspect, there is provided a relay node comprising:
the first processing module is configured to determine a priority of first configuration information and second configuration information if transmission of a first pilot signal and reception of a second pilot signal collide, where the first configuration information is used to configure a transmission time of the first pilot signal, the second configuration information is used to configure a reception time of the second pilot signal, the first pilot signal is received by the relay node, and the second pilot signal is received by the terminal device;
and the second processing module is used for executing pilot signal transmission operation matched with the priority determination result.
In a third aspect, there is provided a relay node comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program implementing the steps of the method according to the first aspect when executed by the processor.
In a fourth aspect, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to the first aspect.
In the embodiment of the invention, when the transmission of the first pilot signal and the reception of the second pilot signal conflict, the relay node determines the priority of the first configuration information for configuring the transmission time of the first pilot signal and the priority of the second configuration information for configuring the reception time of the second pilot signal, and executes the pilot signal transmission operation matched with the priority determination result, thereby avoiding the problem that the transmission and the reception of the pilot signal conflict affects the accuracy of the pilot signal measurement of the relay node and the terminal equipment and improving the communication effectiveness.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of the structure of an IAB according to one embodiment of the invention.
Fig. 3 is a schematic flow chart of a method of transmitting pilot signals according to one embodiment of the invention.
Fig. 4 is a schematic diagram of a method of transmitting pilot signals according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a relay node according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a relay node according to another embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a relay node according to still another embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The technical scheme of the invention can be applied to various communication systems, such as: long term evolution (Long Term Evolution, LTE)/enhanced long term evolution (Long Term Evolution-advanced, LTE-a) systems, new Radio (NR) systems, and the like.
The Terminal Equipment (UE) in the embodiments of the present invention, which may also be referred to as a Mobile Terminal (Mobile Terminal), a Mobile User Equipment (UE), etc., may communicate with one or more core networks via a radio access network (e.g., radio Access Network, RAN), and the UE may be a Mobile Terminal, such as a Mobile phone (or "cellular" phone), and a computer with a Mobile Terminal, such as a portable, pocket, hand-held, computer-built-in, or vehicle-mounted Mobile device, which exchanges voice and/or data with the radio access network.
The network device in the embodiment of the present invention is a device deployed in a radio access network device and used for providing a wireless communication function for a terminal device, where the network device may be a base station, for example, a base station, which may be an evolved base station (evolutional Node B, abbreviated eNB or e-NodeB) and a 5G base station (gNB) in LTE, or a network device in a later evolution version, and the invention is not limited thereto.
Fig. 1 shows an application scenario of an embodiment of the present invention. As shown in fig. 1, 3 relay nodes (relay node 1, relay node 2, and relay node 3) are provided between a home (Donor) base station and a terminal device, and signals transmitted from the Donor base station are sequentially forwarded to the terminal device through the 3 relay nodes.
It should be noted that, in the embodiment of the present invention, the Relay node may be a base station, may be a UE (UE Relay) supporting a Relay function, may be a UE supporting a Sidelink (Sidelink) technology or a Device-to-Device (D2D) technology, and may also be an access backhaul integrated (Intenerated Access and Backhaul, IAB) node.
As shown in fig. 2, in one possible architecture of the IAB, each IAB node has a Distributed Unit (DU) and a mobile terminal (Mobile Termination, MT) module. One IAB node is connected to an upstream IAB node or IAB host (Donor) via an MT module, and a radio link control (Radio Link Control, RLC) channel is established via DUs to the UE and MT modules of the downstream IAB node. For MT modules, the RLC channel may refer to a modified RLC channel. An IAB node may be connected to multiple upstream IAB nodes or IAB Donor DUs. An IAB node may include a plurality of DUs, but each DU of the IAB node has an F1-C connection with only a Centralized Unit-Control Plane (CU-CP) of an IAB Donor, which accesses the core network (Next Generation Core, NGC).
Fig. 3 is a schematic flow chart of a method of transmitting pilot signals according to one embodiment of the invention. The method shown in fig. 3 may be performed by a relay node. As shown in fig. 3, the method includes:
s110, if the transmission of the first pilot signal and the reception of the second pilot signal conflict, determining the priority of first configuration information and second configuration information, wherein the first configuration information is used for configuring the transmission time of the first pilot signal, the second configuration information is used for configuring the reception time of the second pilot signal, the first pilot signal is received by the relay node, and the second pilot signal is received by the terminal equipment.
It should be noted that, the first pilot signal is received by the relay node, which may be understood as a signal sent to the relay node by other relay nodes or network devices. The second pilot signal is received by the terminal device, which may be understood as a signal transmitted by the relay node or the network device to the terminal device.
Optionally, in some embodiments, if it is determined that the interval between the transmission time and the reception time is less than or equal to a preset time interval, a collision between the transmission of the first pilot signal and the reception of the second pilot signal is determined. For example, if the transmission time of the first pilot signal overlaps the reception time of the second pilot signal, a collision between the transmission of the first pilot signal and the reception of the second pilot signal is determined. Or, if the preset time interval is 2ms and the time interval between the sending time of the first pilot signal and the receiving time of the second pilot signal is 1ms, the sending of the first pilot signal and the receiving conflict of the second pilot signal are determined.
Optionally, in some embodiments, if there is overlap of the duration of the first pilot signal with the duration of the second pilot signal, a collision of transmission of the first pilot signal and reception of the second pilot signal is determined. In other words, if there is overlap in time domain between the transmission resource of the first pilot signal and the reception resource of the second pilot signal, the transmission of the first pilot signal and the reception of the second pilot signal collide.
Optionally, in S110, determining the priority of the first configuration signal and the second configuration information includes: determining the priorities of the first configuration information and the second configuration information according to the target information and the priority determining rule; wherein the target information includes at least one of the following information: a configuration index of the first configuration information; a configuration index of the second configuration information; measurement configuration of child nodes configured to the relay node; measurement configuration configured to the relay node; and the hop count of the relay node. A child node of a relay node may be understood here as another relay node or a terminal device (e.g. a terminal device receiving the second pilot signal or a terminal device having the relay node as a serving cell) having a number of hops greater than the number of hops of the relay node.
For example, the target information includes a configuration index of the first configuration information, and the priority determining rule is: the configuration index is smaller than a preset value, the first configuration information has higher priority, otherwise, the first configuration information has lower priority. Assuming that the preset value is 3, in this case, if the configuration index of the first configuration information is 0, it is determined that the priority of the first configuration information is higher than the priority of the second configuration information; if the configuration index of the first configuration information is 4, it is determined that the priority of the first configuration information is lower than the priority of the second configuration information.
Alternatively, the target information includes a configuration index of the first configuration information and a configuration index of the second configuration information, and the priority determining rule may be: if the configuration index of the first configuration information is larger than that of the second configuration information, the priority of the first configuration information is lower than that of the second configuration information; if the configuration index of the first configuration information is less than or equal to all of the second configuration information, the priority of the first configuration information is higher than the priority of the second configuration information.
Or the target information comprises the hop count of the relay node, the priority determining rule is that if the hop count of the relay node is greater than half of the total hop count of the wireless relay link, the priority of the first configuration information is lower than the priority of the second configuration information, and otherwise, the priority of the first configuration information is higher than the priority of the second configuration information. For example, the total number of wireless relay links is 5, and the number of hops where the relay node is located is 3, and then the priority of the first configuration information is lower than the priority of the second configuration information.
The above measurement configuration of the child node configured to the relay node includes at least one of the following configurations: the method comprises the steps of measuring a center frequency point, measuring subcarrier spacing, measuring period, offset (Offset) of the measuring period, measuring window length and cell identification of a neighbor cell. For example, the measurement configuration configured to the child node includes a measured subcarrier spacing, and if the measured subcarrier spacing is 15kHz, it is determined that the priority of the first configuration information is lower than the priority of the second configuration information, and if the measured subcarrier spacing is 30kHz, it is determined that the priority of the first configuration information is higher than the priority of the second configuration information.
The measurement configuration configured to the relay node includes at least one of the following configurations: measurement period, measured center frequency point and measured subcarrier spacing.
For example, the target information includes a measurement configuration of a child node configured to a relay node and a measurement configuration configured to the relay node. The measurement configuration of the sub-node configured to the relay node comprises a measurement period, if the measurement period of the sub-node configured to the relay node is smaller than the measurement period configured to the relay node, the priority of the first configuration information is determined to be lower than the priority of the second configuration information, otherwise, the priority of the first configuration information is determined to be higher than the priority of the second configuration.
The priority determination rule described above is determined by one of the following means: predefining; the network equipment is configured through high-layer signaling; and, the network device is configured through Layer one (Layer 1, L1) signaling (physical Layer signaling). The higher layer signaling here may be radio resource control (Radio Resource Control, RRC) signaling.
Optionally, in some embodiments, in S110, determining the priority of the first configuration information and the second configuration information includes: receiving indication information from network equipment; and determining the priority of the first configuration information and the second configuration information according to the indication information.
That is, the network device may directly indicate the priorities of the first configuration information and the second configuration information, and the terminal device determines the priorities of the first configuration information and the second configuration information directly according to the indication of the network device. The network device may send the indication information through higher layer signaling, or may send the indication information through L1 signaling. The embodiment of the present invention is not limited thereto.
As an example, the first pilot signal is a first synchronization signal block (Synchronized Signal Block, SSB), the second pilot signal is a second SSB, the first configuration information is SSB transmission configuration (SSB Transmission Configuration, STC) information, and the second configuration information is SSB measurement time configuration (SSB Measurement Time Configuration, SMTC) information. The STC information herein may be used to determine the location where the IAB node sent the SSB. STC information indication includes two roles: (1) An adjacent IAB node of one IAB node sends SSB according to the configuration of STC information, so that the IAB node performs SSB measurement; (2) The DU of the IAB node transmits the SSB according to the configuration of the STC such that neighboring IAB nodes of the IAB node perform measurement of the SSB.
And S120, performing pilot signal transmission operation matched with the priority determination result.
Optionally, in S120, performing a pilot signal transmission operation matched with the priority determination result, including: if the priority of the first configuration information is higher than that of the second configuration information, receiving a first pilot signal at the transmitting moment; or if the priority of the first configuration information is lower than that of the second configuration information, the second pilot signal is sent at the receiving moment.
In other words, if the priority of the configuration information is higher than the priority of the second configuration information, the relay node needs to receive the first pilot signal sent by other devices (network devices or other relay nodes) at the sending moment configured by the first configuration information, so as to implement measurement of the first pilot signal; if the priority of the first configuration information is lower than the priority of the second configuration information, the relay node needs to send the second pilot signal to other devices (sub-relay nodes or terminal devices of the relay node) at the receiving moment of the second configuration information configuration, so that the terminal device can measure the second pilot signal.
In an embodiment of the present invention, the measurement of the first pilot signal includes, but is not limited to, measurement of a reference signal received power (Reference Signal Received Power, RSRP) and/or measurement of a reference signal received quality (Reference Signal Receiving Quality, RSRQ) of the first pilot signal, and the measurement of the second pilot signal includes, but is not limited to, measurement of an RSRP and/or RSRQ of the second pilot signal.
Fig. 4 illustrates a method of transmitting pilot signals in accordance with a specific embodiment of the present invention. As shown in fig. 4, taking the first configuration information as STC information and the second configuration information as SMTC information as an example, if the configuration index (# 0) of the first configuration information is the same as the configuration index (# 0) of the second configuration information, the priority of the first configuration information is higher than the priority of the second configuration information, and the relay node performs an operation of receiving (Rx) pilot signals at the transmission timing of the configuration of the first configuration information, if the configuration index (# 1) of the first configuration information is greater than the configuration index (# 0) of the second configuration information, the priority of the first configuration information is lower than the priority of the second configuration information, and the relay node performs an operation of transmitting (Tx) pilot signals at the reception timing of the configuration of the second configuration information.
Having described the method of transmitting pilot signals in detail above in conjunction with fig. 3 and 4, a relay node according to an embodiment of the present invention will be described in detail below in conjunction with fig. 5, as shown in fig. 5, the relay node 50 includes:
a first processing module 51, configured to determine priorities of first configuration information and second configuration information if transmission of a first pilot signal and reception of a second pilot signal conflict, where the first configuration information is used to configure a transmission time of the first pilot signal, the second configuration information is used to configure a reception time of the second pilot signal, the first pilot signal is received by the relay node, and the second pilot signal is received by a terminal device;
a second processing module 52, configured to perform a pilot signal transmission operation that matches the priority determination result.
Optionally, as an embodiment, the first processing module 51 is further configured to:
if the interval between the sending time and the receiving time is smaller than or equal to a preset time interval, determining that the sending of the first pilot signal and the receiving of the second pilot signal conflict; or alternatively, the first and second heat exchangers may be,
if the duration of the first pilot signal overlaps with the duration of the second pilot signal, a collision between the transmission of the first pilot signal and the reception of the second pilot signal is determined.
Optionally, as an embodiment, the second processing module 52 is specifically configured to:
if the priority of the first configuration information is higher than that of the second configuration information, receiving the first pilot signal at the sending moment; or alternatively, the first and second heat exchangers may be,
and if the priority of the first configuration information is lower than that of the second configuration information, transmitting the second pilot signal at the receiving moment.
Optionally, as an embodiment, the first processing module 51 is specifically configured to:
determining the priorities of the first configuration information and the second configuration information according to the target information and the priority determining rule;
wherein the target information includes at least one of the following information:
a configuration index of the first configuration information;
a configuration index of the second configuration information;
measurement configuration of child nodes configured to the relay node;
measurement configuration configured to the relay node; the method comprises the steps of,
and the hop count of the relay node is.
Optionally, as an embodiment, the measurement configuration of the child node configured to the relay node includes at least one of the following configurations: the method comprises the steps of measuring a center frequency point, measuring subcarrier intervals, measuring period, offset of the measuring period, measuring window length and cell identification of a neighbor cell.
Optionally, as an embodiment, the measurement configuration configured to the relay node includes at least one of the following configurations: measurement period, measured center frequency point and measured subcarrier spacing.
Optionally, as an embodiment, the priority determining rule is determined by one of the following ways:
predefining;
the network equipment is configured through high-layer signaling; the method comprises the steps of,
the network device is configured through layer one L1 signaling.
Optionally, as an embodiment, the first processing module 51 is specifically configured to:
receiving indication information from network equipment;
and determining the priority of the first configuration information and the second configuration information according to the indication information.
Optionally, as an embodiment, the first pilot signal is a first synchronization signal block SSB, the second pilot signal is a second SSB, the first configuration information is SSB transmission configuration STC information, and the second configuration information is SSB measurement time configuration SMTC configuration information.
The relay node provided by the embodiment of the present invention can implement each process implemented by the relay node in the method embodiment of fig. 2, and in order to avoid repetition, a description is omitted here.
Fig. 6 is a schematic structural diagram of a relay node according to an embodiment of the present invention. The relay node 600 shown in fig. 6 includes: at least one processor 601, a memory 602, at least one network interface 604, and a user interface 603. The various components in the relay node 600 are coupled together by a bus system 605. It is understood that the bus system 605 is used to enable connected communications between these components. The bus system 605 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various buses are labeled as bus system 605 in fig. 6.
The user interface 603 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, a trackball, a touch pad, or a touch screen, etc.).
It is to be appreciated that the memory 602 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). The memory 702 of the systems and methods described in embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.
In some implementations, the memory 602 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof: an operating system 6021 and application programs 6022.
The operating system 6021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 6022 includes various application programs such as a Media Player (Media Player), a Browser (Browser), and the like for realizing various application services. The program for implementing the method of the embodiment of the present invention may be included in the application 6022.
In the embodiment of the present invention, the relay node 600 further includes: a computer program stored on the memory 609 and executable on the processor 610, which when executed by the processor 601 performs the steps of: if the transmission of the first pilot signal and the reception of the second pilot signal are determined to be in conflict, determining the priority of first configuration information and second configuration information, wherein the first configuration information is used for configuring the transmission time of the first pilot signal, the second configuration information is used for configuring the reception time of the second pilot signal, the first pilot signal is received by the relay node, and the second pilot signal is received by the terminal equipment; and performing pilot signal transmission operation matched with the priority determination result.
The method disclosed in the above embodiment of the present invention may be applied to the processor 601 or implemented by the processor 601. The processor 601 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the processor 601 or instructions in the form of software. The processor 601 may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a computer readable storage medium well known in the art such as random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, and the like. The computer readable storage medium is located in the memory 602, and the processor 601 reads information in the memory 602 and performs the steps of the above method in combination with its hardware. In particular, the computer readable storage medium has stored thereon a computer program which, when executed by the processor 601, performs the steps of the method embodiment of fig. 2 as described above.
It is to be understood that the embodiments of the invention described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For a hardware implementation, the processing units may be implemented within one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processors (Digital Signal Processing, DSP), digital signal processing devices (DSP devices, DSPD), programmable logic devices (Programmable Logic Device, PLD), field programmable gate arrays (Field-Programmable Gate Array, FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described in embodiments of the present invention may be implemented by modules (e.g., procedures, functions, and so on) that perform the functions described in embodiments of the present invention. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
The relay node 600 can implement each process implemented by the relay node in the foregoing embodiment, and in order to avoid repetition, a description is omitted here.
Fig. 7 shows a schematic structural diagram of a relay node according to still another embodiment of the present invention. As shown in fig. 7, the relay node 700 includes a processor 701, a transceiver 702, a memory 703, and a bus interface. Wherein:
in an embodiment of the present invention, the relay node 700 further includes: a computer program stored in the memory 703 and capable of running on the processor 701, where the computer program when executed by the processor 701 implements each process in the method shown in fig. 3 and achieves the same technical effects, and is not repeated here.
In fig. 7, a bus architecture may be comprised of any number of interconnected buses and bridges, and in particular, one or more processors represented by the processor 701 and various circuits of memory represented by the memory 703. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 702 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium.
The processor 701 is responsible for managing the bus architecture and general processing, and the memory 703 may store data used by the processor 701 in performing operations.
The embodiment of the present invention further provides a computer readable storage medium, where a computer program is stored, where the computer program when executed by a processor implements each process of the method embodiment shown in fig. 3 and achieves the same technical effects, and is not repeated herein. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (18)
1. A method for transmitting pilot signals, applied to a relay node, comprising:
if the transmission of the first pilot signal and the reception of the second pilot signal conflict, determining the priority of first configuration information and second configuration information, wherein the first configuration information is used for configuring the transmission time of the first pilot signal, the second configuration information is used for configuring the reception time of the second pilot signal, the first pilot signal is received by the relay node, and the second pilot signal is received by the terminal equipment;
performing pilot signal transmission operation matched with the priority determination result;
wherein determining the priority of the first configuration information and the second configuration information includes:
determining the priorities of the first configuration information and the second configuration information according to the target information and the priority determining rule;
wherein the target information includes at least one of the following information:
a configuration index of the first configuration information;
a configuration index of the second configuration information;
measurement configuration of child nodes configured to the relay node;
measurement configuration configured to the relay node; the method comprises the steps of,
the hop count of the relay node;
wherein determining the priorities of the first configuration information and the second configuration information according to the target information and the priority determination rule includes:
under the condition that the target information comprises the configuration index of the first configuration information, the configuration index is smaller than a preset value, the first configuration information has higher priority, and otherwise, the first configuration information has lower priority;
if the target information comprises the configuration index of the first configuration information and the configuration index of the second configuration information, if the configuration index of the first configuration information is larger than the configuration index of the second configuration information, the priority of the first configuration information is lower than the priority of the second configuration information; if the configuration index of the first configuration information is smaller than or equal to the index of the second configuration information, the priority of the first configuration information is higher than that of the second configuration information;
and under the condition that the target information comprises the hop count of the relay node, if the hop count of the relay node is greater than half of the total hop count of the wireless relay link, the priority of the first configuration information is lower than that of the second configuration information, and otherwise, the priority of the first configuration information is higher than that of the second configuration information.
2. The method according to claim 1, wherein the method further comprises:
if the interval between the sending time and the receiving time is smaller than or equal to a preset time interval, determining that the sending of the first pilot signal and the receiving of the second pilot signal conflict; or alternatively, the first and second heat exchangers may be,
if the duration of the first pilot signal overlaps with the duration of the second pilot signal, a collision between the transmission of the first pilot signal and the reception of the second pilot signal is determined.
3. The method according to claim 1 or 2, wherein said performing a pilot signal transmission operation matching the priority determination result comprises:
if the priority of the first configuration information is higher than that of the second configuration information, receiving the first pilot signal at the sending moment; or alternatively, the first and second heat exchangers may be,
and if the priority of the first configuration information is lower than that of the second configuration information, transmitting the second pilot signal at the receiving moment.
4. The method according to claim 1 or 2, wherein the measurement configuration of the child node configured to the relay node comprises at least one of the following configurations: the method comprises the steps of measuring a center frequency point, measuring subcarrier intervals, measuring period, offset of the measuring period, measuring window length and cell identification of a neighbor cell.
5. The method according to claim 1 or 2, wherein the measurement configuration configured to the relay node comprises at least one of the following configurations: measurement period, measured center frequency point and measured subcarrier spacing.
6. The method according to claim 1 or 2, wherein the priority determination rule is determined by one of:
predefining;
the network equipment is configured through high-layer signaling; the method comprises the steps of,
the network device is configured through layer one L1 signaling.
7. The method according to claim 1 or 2, wherein said determining the priority of the first configuration information and the second configuration information comprises:
receiving indication information from network equipment;
and determining the priority of the first configuration information and the second configuration information according to the indication information.
8. The method according to claim 1 or 2, wherein the first pilot signal is a first synchronization signal block SSB, the second pilot signal is a second SSB, the first configuration information is SSB transmission configuration STC information, and the second configuration information is SSB measurement time configuration SMTC configuration information.
9. A relay node, comprising:
the first processing module is configured to determine a priority of first configuration information and second configuration information if transmission of a first pilot signal and reception of a second pilot signal collide, where the first configuration information is used to configure a transmission time of the first pilot signal, the second configuration information is used to configure a reception time of the second pilot signal, the first pilot signal is received by the relay node, and the second pilot signal is received by the terminal device;
the second processing module is used for executing pilot signal transmission operation matched with the priority determination result;
the first processing module is specifically configured to:
determining the priorities of the first configuration information and the second configuration information according to the target information and the priority determining rule;
wherein the target information includes at least one of the following information:
a configuration index of the first configuration information;
a configuration index of the second configuration information;
measurement configuration of child nodes configured to the relay node;
measurement configuration configured to the relay node; the method comprises the steps of,
the hop count of the relay node;
wherein determining the priorities of the first configuration information and the second configuration information according to the target information and the priority determination rule includes:
under the condition that the target information comprises the configuration index of the first configuration information, the configuration index is smaller than a preset value, the first configuration information has higher priority, and otherwise, the first configuration information has lower priority;
if the target information comprises the configuration index of the first configuration information and the configuration index of the second configuration information, if the configuration index of the first configuration information is larger than the configuration index of the second configuration information, the priority of the first configuration information is lower than the priority of the second configuration information; if the configuration index of the first configuration information is smaller than or equal to the index of the second configuration information, the priority of the first configuration information is higher than that of the second configuration information;
and under the condition that the target information comprises the hop count of the relay node, if the hop count of the relay node is greater than half of the total hop count of the wireless relay link, the priority of the first configuration information is lower than that of the second configuration information, and otherwise, the priority of the first configuration information is higher than that of the second configuration information.
10. The relay node of claim 9, wherein the first processing module is further configured to:
if the interval between the sending time and the receiving time is smaller than or equal to a preset time interval, determining that the sending of the first pilot signal and the receiving of the second pilot signal conflict; or alternatively, the first and second heat exchangers may be,
if the duration of the first pilot signal overlaps with the duration of the second pilot signal, a collision between the transmission of the first pilot signal and the reception of the second pilot signal is determined.
11. The relay node according to claim 9 or 10, wherein the second processing module is specifically configured to:
if the priority of the first configuration information is higher than that of the second configuration information, receiving the first pilot signal at the sending moment; or alternatively, the first and second heat exchangers may be,
and if the priority of the first configuration information is lower than that of the second configuration information, transmitting the second pilot signal at the receiving moment.
12. The relay node according to claim 9 or 10, characterized in that the measurement configuration of the child node configured to the relay node comprises at least one of the following configurations: the method comprises the steps of measuring a center frequency point, measuring subcarrier intervals, measuring period, offset of the measuring period, measuring window length and cell identification of a neighbor cell.
13. The relay node according to claim 9 or 10, characterized in that the measurement configuration configured to the relay node comprises at least one of the following configurations: measurement period, measured center frequency point and measured subcarrier spacing.
14. The relay node according to claim 9 or 10, characterized in that the priority determination rule is determined by one of the following ways:
predefining;
the network equipment is configured through high-layer signaling; the method comprises the steps of,
the network device is configured through layer one L1 signaling.
15. The relay node according to claim 9 or 10, wherein the first processing module is configured to:
receiving indication information from network equipment;
and determining the priority of the first configuration information and the second configuration information according to the indication information.
16. The relay node according to claim 9 or 10, characterized in that the first pilot signal is a first synchronization signal block SSB, the second pilot signal is a second SSB, the first configuration information is SSB transmission configuration STC information, and the second configuration information is SSB measurement time configuration SMTC configuration information.
17. A relay node, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method of transmitting pilot signals as claimed in any one of claims 1 to 8.
18. A computer readable medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of transmitting pilot signals according to any of claims 1 to 8.
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