CN111756511B - Method, device and system for determining frequency hopping frequency - Google Patents

Method, device and system for determining frequency hopping frequency Download PDF

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Publication number
CN111756511B
CN111756511B CN201910256224.1A CN201910256224A CN111756511B CN 111756511 B CN111756511 B CN 111756511B CN 201910256224 A CN201910256224 A CN 201910256224A CN 111756511 B CN111756511 B CN 111756511B
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frequency hopping
frequency
time
determining
uplink
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CN111756511A (en
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温容慧
余政
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/0012—Hopping in multicarrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7136—Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource

Abstract

The embodiment of the application provides a method, equipment and a system for determining frequency hopping frequency, relates to the technical field of communication, and aims to realize effective diversity reception and achieve the purpose of frequency hopping. The method specifically comprises the following steps: acquiring allocated time domain resources for transmitting data, wherein the time domain resources are positioned in at least one time slot or uplink time period; if the time slot or the uplink time period only supports one-time transmission, and the first time slot or the first uplink time period in which the time domain resource is located meets a first preset condition, the symbol of the time domain resource in the first time slot or the first uplink time period is divided into M parts, and each part adopts different carrier frequencies for frequency hopping; if one-time or multiple-time transmission is supported in the time slot or the uplink time period, the time domain resource is divided into N times of transmission according to the notification transmission times N, and the N times of transmission adopt M different carrier frequencies for frequency hopping.

Description

Method, device and system for determining frequency hopping frequency
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to a method, equipment and a system for determining frequency hopping frequency.
Background
Frequency hopping is the most common communication method for resisting frequency selective fading, and the working principle thereof is a communication method in which the carrier frequencies of signals transmitted by both the transmitter and the receiver change according to a predetermined rule. As shown in fig. 1, a frequency hopping process is illustrated, in which the carrier center frequencies of the transmission signals of the two transceivers are from 0 to 5T in 5 periods, and the corresponding positions of the center frequency points in the frequency domain are f3, f1, f5, f2 and f4, respectively. In frequency hopping communication, a sender modulates the same signal (or data packet) to different carrier frequencies for transmission, and a receiver combines the signals (or data packets) received at different carrier frequencies to bring signal gain, thereby realizing frequency diversity and being used for resisting frequency selective fading. Frequency hopping is the process of transmitting a signal (or data packet) multiple times at different carrier frequencies, one transmission of the signal (or data packet) is called a retransmission, and different transmissions of the signal (or data packet) multiple times are called different transmissions.
Currently, in the fifth generation (5G) next generation mobile communication (NR), frequency hopping between slots (slots) and within slots is supported by Radio Resource Control (RRC) configuration, and only 2 frequency hopping is supported. And hopping among slots, wherein the carrier frequency of the data symbols in each slot is a central frequency point during hopping, and the carrier frequencies of the data symbols in different slots are different central frequency points. And (3) hopping within the slots, wherein 2 different hopping center frequency points are allowed in the carrier frequency of the data symbols within one slot during frequency hopping. Fig. 2 illustrates inter-slot hopping and fig. 3 illustrates intra-slot hopping.
When the length of a data symbol scheduled by an access network device is a slot, and there is only a case of 1 transmission (referred to as multi-segment) in 1 slot or an uplink period (UL period), that is, different transmissions are divided according to a slot edge or an uplink/downlink transition point, for example, in fig. 4, the allocation domain resource is a symbol 12 of the 1 st slot to a symbol 11 of the 2 nd slot, the symbol 12 and the symbol 13 of the 1 st slot are 1 transmission (retransmission), the symbol 0 to the symbol 11 of the 2 nd slot are another transmission (retransmission), and different carrier frequencies are adopted according to different transmissions indicated by the access network device during frequency hopping.
When the length of the data symbol scheduled by the access network device is smaller than a slot (called mini-slot), there may be one or more times of transmission in 1 slot or UL period (called mini-slot retransmission). Specifically, the access network device notifies the terminal device of the number of times of repetition in frequency hopping, and the repetition meeting a slot boundary (boundary) or an uplink/downlink transition point is divided into 2 transmissions. As shown in fig. 5, the time domain resource is allocated to symbol 9 of the 1 st slot to symbol 2 of the 2 nd slot, the access network device notifies that the repetition number is 2, because the 2 nd repetition meets the slot boundary, the 2 nd repetition is divided into the 2 nd and 3 rd repetition, and because 2 frequency hopping is supported, the 1 st and 3 rd repetition use one frequency and the 2 nd repetition uses another frequency during frequency hopping.
In both of the above two scenarios, repetition with a small number of symbols occurs, such as the first repetition illustrated in fig. 4 and the 2 nd repetition illustrated in fig. 5, because the number of symbols is limited, data information that is the same as other transmissions cannot be carried or a Transport Block (TB) cannot be carried, the effect of diversity reception cannot be achieved, and the purpose of frequency hopping cannot be achieved.
Disclosure of Invention
The embodiment of the application provides a method and a device for determining frequency hopping frequency, so as to realize effective diversity reception and achieve the purpose of frequency hopping.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:
in a first aspect, a method of determining a hopping frequency is provided, which may include: acquiring allocated time domain resources for transmitting data, wherein the time domain resources are in at least one time slot or uplink time period, namely the time domain resources can continuously occupy one or more time slots or uplink frequency bands; if the time slot or the uplink time period only supports one-time transmission, and the first time slot or the first uplink time period in which the time domain resource is located meets a first preset condition, the symbol of the time domain resource in the first time slot or the first uplink time period is divided into M parts, and each part adopts different carrier frequencies for frequency hopping; the first time slot is any time slot where the time domain resource is located; the first uplink time interval is any uplink time interval where the time domain resource is located; if one-time or multiple-time transmission is supported in a time slot or an uplink time period, dividing time domain resources into N times of transmission according to the notification transmission times N, wherein the N times of transmission adopt M different carrier frequencies for frequency hopping; wherein M is the supported maximum frequency hopping times; n is greater than or equal to M.
According to the method for determining the frequency hopping frequency, on one hand, frequency hopping in a time slot or frequency hopping in an uplink time period is carried out in the time slot or the uplink time period which meets the first preset condition, and the frequency hopping in the time slot or the uplink time period with a small number of symbols can be avoided by reasonably configuring the first preset condition; on the other hand, the frequency hopping frequency is determined according to the notice transmission times N, the time slot boundary or the uplink and downlink switching point does not influence the determination of the frequency, and the phenomenon that the number of the symbols transmitted at a certain time is small due to the time slot boundary or the uplink and downlink switching point can be avoided. Therefore, the frequency hopping method provided by the application avoids the situation that a few symbols are transmitted at one time during frequency hopping, each transmission of the frequency hopping can bear the same data information and complete TB, the effect of diversity reception is achieved, and the purpose of frequency hopping is achieved.
It should be noted that, the method for determining a frequency hopping frequency provided by the present application is applied to frequency hopping by a terminal device or an access network device, and the type of the device executing the scheme of the present application is not specifically limited in the present application. For example, the terminal device may execute the scheme provided in the present application, and determine a hopping frequency to transmit data in a hopping manner. The access network device may execute the scheme provided by the present application to determine a hopping frequency to hop the received data.
Wherein, the notification transmission number N may be the transmission number N indicated by the base station through dynamic scheduling signaling.
The allocated time domain resource for transmitting data refers to a continuous time domain symbol which is allocated by the access network device and is used for the terminal device to transmit data in a frequency hopping mode.
The number of transmissions supported in a timeslot or an uplink period is a functional attribute of the communication system, and may be determined by the access network device according to a preset algorithm, available resources, and the like, which is not specifically limited in this application. For example, if the length of a data symbol scheduled by access network equipment in a communication system is slot, only one transmission is supported in a time slot or an uplink time period; if the length of the data symbol scheduled by the access network equipment in the communication system is less than slot, one or more times of transmission is supported in the time slot or the uplink time period.
With reference to the first aspect, in a possible implementation manner, the first preset condition may include: the number of symbols of the time domain resource in the time slot or the uplink time period is greater than or equal to the frequency hopping threshold value. And controlling frequency hopping in a time slot or an uplink time period by configuring a reasonable frequency hopping threshold value.
With reference to the first aspect, in a possible implementation manner, the first preset condition may include: the ratio of the symbols of the time domain resources in the time slot or the uplink time interval to the total number of the symbols of the time slot is greater than or equal to the frequency hopping ratio. And the frequency hopping in the time slot or the uplink time period is controlled by configuring a reasonable frequency hopping ratio value.
With reference to the first aspect, in a possible implementation manner, the first preset condition may include: the number of the symbols of the time domain resource in the time slot or the uplink time period is greater than or equal to the frequency hopping threshold value, and the ratio of the symbols of the time domain resource in the time slot or the uplink time period to the total number of the symbols of the time slot is greater than or equal to the frequency hopping ratio value.
It should be noted that the frequency hopping threshold value or the frequency hopping ratio value may be configured according to actual requirements, which is not specifically limited in this application.
With reference to the first aspect or any one of the foregoing possible implementations, in another possible implementation, the frequency hopping threshold value or the frequency hopping fraction value may be configured by higher layer signaling, for example, Radio Resource Control (RRC) signaling. In this implementation, the higher layer is configured with a specific value of the hopping threshold value or the hopping proportion value in advance.
With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the frequency hopping threshold value or the frequency hopping ratio value is configured by dynamic signaling, and is indicated by Downlink Control Information (DCI). In the implementation mode, a plurality of numerical values of the frequency hopping threshold value or the frequency hopping ratio value are configured in advance by the high layer, and then the DCI indicates the specific numerical value of the frequency hopping threshold value or the frequency hopping ratio value.
The high-level signaling described in this application may be Radio Resource Control (RRC) signaling, the dynamic signaling described in this application may be Downlink Control Information (DCI), and subsequent contents are not described one by one.
With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, a frequency hopping threshold value or a frequency hopping percentage value is configured in advance. In this implementation, the hopping threshold value or hopping fraction value is preconfigured to a fixed value. For example, the hopping threshold value may be preconfigured as 12 or 14. The hop ratio value may be preconfigured to 6/7.
With reference to the first aspect or any one of the foregoing possible implementations, in another possible implementation, M may be equal to 2.
With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the communication system may support multiple frequency hopping times, that is, M may have multiple values, and the method for determining a frequency hopping frequency provided by the present application may further include: m is determined according to resource allocation or transmission bandwidth.
With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the alternative values of M include 2 and 4, and the determining M according to resource allocation may specifically be implemented as: if the bandwidth of a partial bandwidth part (BWP) is greater than or equal to a preset threshold, determining that M is 4; and if the BWP bandwidth is smaller than a preset threshold value, determining that M is 2. In this implementation, the resource allocation is BWP, and the value of M is determined by comparing BWP with a preset threshold.
It should be noted that, the value of the preset threshold may be configured according to actual requirements, and this is not specifically limited in this application. For example, the preset threshold may be 50 Resource Blocks (RBs).
With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the alternative values of M include 2 and 4, and the determining M according to resource allocation may specifically be implemented as: if the frequency hopping carrier frequency interval or the transmission bandwidth and the bandwidth of the partial frequency band BWP meet a second preset condition, determining that M is 4; and if the frequency hopping carrier frequency interval or the transmission bandwidth and the BWP do not meet the second preset condition, determining that M is 2. In the implementation mode, the resource allocation is frequency hopping carrier frequency interval and BWP, and the value of M is determined through the relation between the frequency hopping carrier frequency interval and the BWP; or, the resource is allocated as BWP, and the value of M is determined by the relationship between the transmission bandwidth and BWP.
Wherein the frequency hopping carrier frequency interval or transmission bandwidth is indicated by higher layer signaling or DCI.
With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the second preset condition may include: the frequency hopping carrier frequency spacing or transmission bandwidth is less than or equal to 1/4 for BWP.
In a second aspect, a method for determining a frequency hopping number is provided, including: and determining the maximum frequency hopping times according to the resource allocation or the transmission bandwidth.
By the method for determining the frequency hopping times, when the communication system supports various maximum frequency hopping times, the actually used maximum frequency hopping place is selected and determined.
It should be noted that, the frequency hopping method provided in the present application is applied to frequency hopping by a terminal device or an access network device, and the type of the device executing the scheme in the present application is not specifically limited.
It should be further noted that, for a specific implementation of the method for determining a frequency hopping number provided in the second aspect of the present application, reference may be made to a process of determining a frequency hopping number in the first aspect or any possible implementation manner of the first aspect, which is not described herein again.
In a third aspect, a communication device is provided, which may include: the device comprises an acquisition unit and a determination unit. The acquisition unit is used for acquiring the allocated time domain resources of the transmission data; the determining unit is used for determining the frequency hopping frequency. The determination unit is specifically configured to: if the time slot or the uplink time period only supports one-time transmission, and the first time slot or the first uplink time period in which the time domain resource is located meets a first preset condition, the symbol of the time domain resource in the first time slot or the first uplink time period is divided into M parts, and each part adopts different carrier frequencies for frequency hopping; the first time slot is any time slot where the time domain resource is located; the first uplink time interval is any uplink time interval where the time domain resource is located; if one-time or multiple-time transmission is supported in a time slot or an uplink time period, dividing time domain resources into N times of transmission according to the notification transmission times N, wherein the N times of transmission adopt M different carrier frequencies for frequency hopping; wherein M is the supported maximum frequency hopping times; n is greater than or equal to M.
According to the communication equipment provided by the application, on one hand, frequency hopping is carried out in a time slot or an uplink time period in the time slot or the uplink time period which meets a first preset condition, and frequency hopping can be avoided in the time slot or the uplink time period with a small number of symbols by reasonably configuring the first preset condition; on the other hand, the frequency hopping frequency is determined according to the notice transmission times N, the time slot boundary or the uplink and downlink switching point does not influence the determination of the frequency, and the phenomenon that the number of the symbols transmitted at a certain time is small due to the time slot boundary or the uplink and downlink switching point can be avoided. Therefore, the frequency hopping method provided by the application avoids the situation that a few symbols are transmitted at one time during frequency hopping, each transmission of the frequency hopping can bear the same data information and complete TB, the effect of diversity reception is achieved, and the purpose of frequency hopping is achieved.
It should be noted that the communication device provided in the third aspect of the present application may be a terminal device or an access network device, and is configured to implement the method for determining a frequency hopping frequency provided in any one of the foregoing first aspect and possible implementations of the first aspect, and therefore, for a specific implementation of the communication device provided in the third aspect of the present application, reference may be made to a specific implementation of the method for determining a frequency hopping frequency provided in any one of the foregoing first aspect and possible implementations of the first aspect, and details are not repeated here.
In a fourth aspect, another communication device is provided, which may include a determining unit configured to determine a maximum number of frequency hops according to resource allocation or transmission bandwidth.
By the communication equipment provided by the application, when the communication system supports multiple maximum frequency hopping times, the actually used maximum frequency hopping is selected and determined.
It should be noted that the communication device provided in the fourth aspect of the present application may be a terminal device or an access network device, and is configured to implement the method for determining the frequency hopping number provided in any one of the possible implementations of the second aspect and the second aspect, and therefore, a specific implementation of the communication device provided in the fourth aspect of the present application may refer to a specific implementation of the method for determining the frequency hopping number provided in any one of the possible implementations of the second aspect and the second aspect, and details thereof are not repeated here.
In a fifth aspect, another communication device is provided, where the communication device may implement the corresponding functions in the above method examples, and the functions may be implemented by hardware or by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions. The communication device may be in the form of a chip product.
With reference to the fifth aspect, in a possible implementation manner, the structure of the communication device includes a processor and a transceiver, and the processor is configured to support the communication device to execute corresponding functions in the foregoing method. The transceiver is for supporting communication between the communication device and other devices. The communication device may also include a memory, coupled to the processor, that retains program instructions and data necessary for the communication device.
In a sixth aspect, a communication system is provided, which includes a terminal device for executing the method for determining a frequency hopping frequency, and an access network device for executing the method for determining a frequency hopping frequency.
In a seventh aspect, a computer-readable storage medium is provided, which includes instructions, when executed on a computer, cause the computer to perform the method for determining a frequency hopping or the method for determining a frequency hopping number provided in any one of the above aspects or any one of the above possible implementations.
In an eighth aspect, there is provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the method for determining a frequency of a frequency hop or the method for determining a number of frequency hops provided in any one of the above aspects or any possible implementation.
It should be noted that, all possible implementation manners of any one of the above aspects may be combined without departing from the scope of the claims.
Drawings
Fig. 1 is a schematic diagram of a frequency hopping process provided by the prior art;
fig. 2 is a schematic diagram of a scenario of inter-slot frequency hopping provided in the prior art;
fig. 3 is a schematic diagram of a scenario of frequency hopping within a slot according to the prior art;
fig. 4 is a schematic view of a scene of a time domain resource provided in the prior art;
fig. 5 is a schematic view of another time domain resource provided by the prior art;
fig. 6 is a schematic architecture diagram of a mobile communication system according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 8 is a flowchart illustrating a method for determining a frequency hopping frequency according to an embodiment of the present application;
fig. 9 is a schematic view of a scenario of a time domain resource according to an embodiment of the present application;
fig. 10 is a schematic view of another time domain resource scenario provided in an embodiment of the present application;
fig. 11 is a schematic view of a scene of another time domain resource provided in an embodiment of the present application;
fig. 12 is a schematic flowchart of another method for determining a frequency hopping frequency according to an embodiment of the present application;
fig. 13 is a schematic structural diagram of another communication device provided in an embodiment of the present application;
fig. 14 is a schematic structural diagram of another communication device according to an embodiment of the present application.
Detailed Description
In the embodiments of the present application, for convenience of clearly describing the technical solutions of the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items with substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.
In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present relevant concepts in a concrete fashion for ease of understanding.
In the description of the present application, a "/" indicates a relationship in which the objects associated before and after are an "or", for example, a/B may indicate a or B; in the present application, "and/or" is only an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. Also, in the description of the present application, "a plurality" means two or more than two unless otherwise specified. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.
In addition, the network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not constitute a limitation to the technical solution provided in the embodiment of the present application, and it can be known by a person skilled in the art that the technical solution provided in the embodiment of the present application is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of a new service scenario.
Before describing particular aspects of the present application, the terminology referred to herein will be described.
Slot, time scheduling unit of access network device. The time slots comprise different numbers of symbols in different communication systems. The same number of symbols, corresponding to different subcarrier spacings, may also differ in slot length, e.g. 15 kilohertz (kHz) and 30kHz correspond to 1ms and 0.5ms slot lengths, respectively.
Mini-slots (mini-slots), time scheduling units of access network equipment, with the duration less than 1 slot.
The uplink period refers to a symbol set used for uplink transmission in one timeslot in TDD mode.
A transmission refers to a continuous time domain symbol transmitted once for a signal (or data packet) in frequency hopping communications.
A carrier refers to a resource with a certain bandwidth in the frequency domain.
The carrier frequency refers to a central frequency of the carrier, i.e., a frequency value of a central frequency point of the carrier. The carrier frequencies described in this application may be replaced with carrier center frequencies.
The frequency hopping times refers to the number of different carrier frequencies that can be used for transmitting a signal (or data packet) in frequency hopping communication, or the number of different carrier frequencies that can be supported by the system and the terminal.
The embodiment of the application provides a method for determining frequency hopping frequency, which has the following basic principle: and carrying out frequency hopping in the time slot or the uplink time interval meeting the preset conditions to determine the frequency hopping frequency, or determining the frequency hopping frequency according to the notified transmission times, and ignoring the division of the time slot boundary or the uplink and downlink conversion point on the transmission. Therefore, the method avoids the phenomenon that the number of symbols included in transmission is too small, realizes that each transmission of frequency hopping can bear the same data information and complete TB, and cannot achieve the effect of diversity reception, thereby achieving the purpose of frequency hopping.
It should be noted that the scheme provided in the embodiment of the present application may be applied to a terminal device or an access network device, and the type of the device executing the scheme of the present application is not specifically limited in the present application, and the following contents are not described one by one. For example, the terminal device may execute the scheme provided in the present application, and determine a hopping frequency to transmit data in a hopping manner. The access network device may execute the scheme provided by the present application to determine a hopping frequency to hop the received data.
The method for determining the frequency hopping frequency provided by the application is applied to the architecture of the mobile communication system as shown in fig. 6. As shown in fig. 6, the architecture of the mobile communication system includes a core network device 610, an access network device 620, and at least one terminal device (e.g., terminal device 630 and terminal device 640 in fig. 6).
Specifically, the terminal device is connected to the access network device 620 in a wireless manner, and the access network device is connected to the core network device 610 in a wireless or wired manner. The core network device 610 and the access network device 620 may be separate physical devices, or the functions of the core network device 610 and the logical functions of the access network device 620 may be integrated on the same physical device, or a physical device in which the functions of a part of the core network device 610 and a part of the functions of the access network device 620 are integrated. The terminal equipment may be fixed or mobile. Fig. 6 is a schematic diagram, and other network devices, such as a wireless relay device and a wireless backhaul device, may also be included in the mobile communication system, which is not shown in fig. 6. The embodiments of the present application do not limit the number of the core network device 610, the access network device 620, and the terminal device included in the mobile communication system.
The type of the mobile communication system is not limited in this application. For example: the mobile communication system may be: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a 5G system, or an NR system.
The access network device 620 may be an access device that the terminal device accesses to the mobile communication system in a wireless manner, and may be a base station NodeB, an evolved node b (eNB or eNodeB), a base station in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, and the like.
The Terminal device may also be referred to as a Terminal device (Terminal), a User Equipment (UE), a Mobile Station (MS), a mobile Terminal device (MT), or the like. The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self driving (self driving), a wireless terminal device in remote surgery (remote medical supply), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), and so on.
The access network device 620 and the terminal device may be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, balloons, and satellites. The embodiment of the application does not limit the application scenes of the access network equipment and the terminal equipment.
The embodiments of the present application may be applicable to downlink signal transmission, may also be applicable to uplink signal transmission, and may also be applicable to device-to-device (D2D) signal transmission. For downlink signal transmission, the sending device is an access network device, and the corresponding receiving device is a terminal device. For uplink signal transmission, the sending device is a terminal device, and the corresponding receiving device is an access network device. For D2D signaling, the sending device is a terminal device and the corresponding receiving device is also a terminal device. In addition, the present embodiment may be used for dynamically scheduling transmission, and may also be applied to semi-persistent scheduling or unlicensed scheduling, such as semi-persistent scheduling (SPS) or Configured Grant (CG). The embodiment of the present application does not limit the transmission direction of the signal.
The access network device 620 and the terminal device may communicate with each other through a licensed spectrum (licensed spectrum), may communicate with each other through an unlicensed spectrum (unlicensed spectrum), and may communicate with each other through both the licensed spectrum and the unlicensed spectrum. The access network device 620 and the terminal device may communicate with each other through a frequency spectrum below 6 gigahertz (GHz), may communicate through a frequency spectrum above 6GHz, and may simultaneously communicate using a frequency spectrum below 6GHz and a frequency spectrum above 6 GHz. The embodiment of the present application does not limit the spectrum resources used between the access network device 620 and the terminal device.
Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In one aspect, an embodiment of the present application provides a communication device. Fig. 7 illustrates a communication device 70 in connection with various embodiments of the present application. The communication device 70 may be an access network device 620 or a terminal device in the wireless communication system architecture shown in fig. 6. As shown in fig. 7, the communication device 70 may include: a processor 701, a memory 702, a transceiver 703.
The respective constituent elements of the communication device 70 will be specifically described below with reference to fig. 7:
a memory 702, which may be a volatile memory (volatile memory), such as a random-access memory (RAM); or a non-volatile memory (non-volatile memory), such as a read-only memory (ROM), a flash memory (flash memory), a Hard Disk Drive (HDD) or a solid-state drive (SSD); or a combination of the above types of memories, for storing program code, and configuration files, which implement the methods of the present application.
The processor 701 is a control center of the communication device 70, and may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application, for example: one or more microprocessors (digital signal processors, DSPs), or one or more Field Programmable Gate Arrays (FPGAs). Processor 701 may perform various functions of communication device 70 by executing or executing software programs and/or modules stored within memory 702, as well as invoking data stored within memory 702.
The transceiver 703 is used for the communication device 70 to interact with other units. Illustratively, the transceiver 703 may be a transceiver antenna or a transceiver port or a transceiver module of the communication device 70.
The processor 701 performs the following functions by running or executing software programs and/or modules stored in the memory 702 and calling data stored in the memory 702:
acquiring allocated time domain resources for transmitting data, wherein the time domain resources are positioned in at least one time slot or uplink time period; if the time slot or the uplink time period only supports one-time transmission, and the first time slot or the first uplink time period in which the time domain resource is located meets a first preset condition, the symbol of the time domain resource in the first time slot or the first uplink time period is divided into M parts, and each part adopts different carrier frequencies for frequency hopping; the first time slot is any time slot where the time domain resource is located; the first uplink time interval is any uplink time interval where the time domain resource is located; if one-time or multiple-time transmission is supported in a time slot or an uplink time period, dividing time domain resources into N times of transmission according to the notification transmission times N, wherein the N times of transmission adopt M carrier frequencies for frequency hopping; wherein M is the supported maximum frequency hopping times; n is greater than or equal to M.
On the other hand, the embodiment of the present application provides a method for determining a frequency hopping frequency, which is applied to a communication device, where the communication device may be a terminal device or an access network device. For example, the terminal device may execute the scheme provided in the present application, and determine a hopping frequency to transmit data in a hopping manner. The access network device may execute the scheme provided by the present application to determine a hopping frequency to hop the received data.
It should be noted that, an operation performed by the communication device described in this application may be understood as being performed by the communication device, and may also be understood as being performed by a functional unit or a chip in the communication device, which is not specifically limited in this embodiment of the application, and only the operation performed by the communication device is described below. The communication device may be the communication device 70 illustrated in fig. 7.
It should be further noted that, for the time slot or the uplink time period, if the scheme provided by the present application is applied to the TDD system, the uplink time period is adopted, and if the scheme is applied to the non-TDD system, the time slot is adopted, and the following contents are not described one by one.
As shown in fig. 8, a method for determining a frequency hopping frequency provided in an embodiment of the present application may include:
s801, the communication device acquires the allocated time domain resource of the transmission data.
Wherein the time domain resource is a contiguous time domain symbol allocated by the access network device for transmitting data in frequency hopping communications. The time domain resource may be in one or more time slots or uplink time periods, that is, the time domain resource may continuously occupy one or more time slots or uplink frequency bands. For example, the allocated time domain resources illustrated in fig. 4 and 5 are in two slots.
It should be noted that, in the embodiment of the present application, a specific allocation method of the time domain resource is not specifically limited. For example, the access network device may allocate the time domain resource according to the service requirement of the terminal device and the current network resource.
Specifically, when the communication device is a terminal device, S801 may specifically be implemented as: and the terminal equipment receives the time domain resource sent by the access network equipment. When the communication device is an access network device, S801 may specifically be implemented as: and the access network equipment acquires the time domain resource allocated to the terminal equipment.
After S801, the communication apparatus performs S802 or S803 according to the number of transmissions supported in the slot or uplink period.
Specifically, the number of transmissions supported in the timeslot or uplink period is a functional attribute of the communication system, and may be determined by the access network device according to a preset algorithm, available resources, and the like, which is not specifically limited in this application. For example, if the length of a data symbol scheduled by access network equipment in a communication system is slot, only one transmission is supported in a time slot or an uplink time period; if the length of the data symbol scheduled by the access network equipment in the communication system is less than slot, one or more times of transmission is supported in the time slot or the uplink time period.
S802, if the time slot or the uplink time period only supports one-time transmission, and the first time slot or the first uplink time period in which the time domain resource is located meets a first preset condition, the communication equipment divides the symbol of the time domain resource in the first time slot or the first uplink time period into M parts, and each part adopts different carrier frequencies for frequency hopping.
The first time slot is any time slot where the time domain resource is located; the first uplink time interval is any uplink time interval where the time domain resource is located. It should be understood that the first time slot is a time slot satisfying a first preset condition among the time slots in which the time domain resources are located, and therefore, there may be one or more first time slots; the first uplink time period is an uplink time period satisfying a first preset condition in the uplink time periods in which the time domain resources are located, and therefore, there may be one or more first uplink time periods.
It should be noted that, in each first time slot or first uplink time period, the operation of S802 is performed, and this embodiment of the present application only describes a process of performing S802 in one first time slot or first uplink time period, and details of the other steps are not repeated.
Wherein, M is the supported maximum frequency hopping number, that is, the maximum frequency hopping number supported by the communication system. The value of M may be configured according to actual requirements, and the value of M is not specifically limited in this embodiment of the present application.
In one possible implementation, M may be 2.
In another possible implementation, M may have a plurality of candidate values, and the communication device selects a value of M from the plurality of candidate values according to the actual network configuration. For example, alternative values for M may be 2 and 4.
Specifically, the first preset condition is a preset judgment condition for performing frequency hopping in a time slot or an uplink time period, and the content of the first preset condition may be configured according to an actual requirement, which is not specifically limited in this embodiment of the present application.
The following provides the configuration contents of the two first preset conditions as examples, but are not particularly limited.
Example 1, the first preset condition may include: the number of the symbols of the allocated time domain resource for transmitting data in the time slot or the uplink time period is greater than or equal to the frequency hopping threshold value.
Example 2, the first preset condition may include: and the ratio of the symbols of the allocated time domain resources for transmitting data in the time slot or the uplink period to the total number of the symbols of the time slot is greater than or equal to the frequency hopping ratio.
Example 3, the first preset condition may include: the number of the symbols of the allocated time domain resources for transmitting data in the time slot or the uplink period is greater than or equal to a frequency hopping threshold value, and the ratio of the symbols of the allocated time domain resources for transmitting data in the time slot or the uplink period to the total number of the symbols of the time slot is greater than or equal to a frequency hopping ratio value.
The specific values of the frequency hopping threshold value and the frequency hopping ratio can be configured according to actual requirements, and this is not specifically limited in the embodiment of the present application.
Alternatively, the hopping threshold value may be implemented by, but is not limited to:
the implementation 1, frequency hopping threshold value or frequency hopping fraction value is configured by high-level signaling. Namely: and configuring a specific numerical value of a frequency hopping threshold value or a frequency hopping ratio value in advance by the high-level signaling.
The higher layer signaling described herein may be through RRC signaling.
And 2, configuring the frequency hopping threshold value or the frequency hopping ratio value by dynamic signaling. The high layer is configured with a plurality of values of the frequency hopping threshold value or the frequency hopping ratio value in advance, and then the dynamic signaling is used for carrying out the frequency hopping threshold value or the specific value of the frequency hopping ratio value.
The dynamic signaling described herein may be a DCI indication.
And 3, pre-configuring a frequency hopping threshold value or a frequency hopping ratio value.
In implementation 3, the hopping threshold value or the hopping fraction value is pre-configured to a fixed value. For example, the hopping threshold value may be preconfigured as 12 or 14; the hop ratio value may be preconfigured to 6/7.
Specifically, the communication device divides the symbol of the time domain resource in the first time slot or the first uplink time period into M parts, each part uses different carrier frequencies for frequency hopping, the scheme of the application only determines which time domain symbols use one carrier frequency, and for the specific value of the carrier frequency, the specific value can be realized according to the existing mode of determining the frequency hopping carrier frequency, which is not repeated again in the embodiment of the application.
For example, the access network device may provide an initial carrier frequency of the frequency hopping and a frequency hopping carrier frequency interval, and the manner of determining the frequency hopping carrier frequency may be: the initial carrier frequency is one carrier frequency and the initial carrier frequency plus the hop carrier frequency spacing is the other carrier frequency.
For example, assuming that a communication system is configured to support transmission only once in a slot or an uplink period, as shown in fig. 9, time domain resources of allocated transmission data are symbols 12 in 1 st slot to symbols 11 in 2 nd slot, the time domain resources are divided into 2 transmissions, the 1 st transmission is symbols 12 and 13 in 1 st slot, the 2 nd transmission is symbols 0 to 11 in 2 nd slot, and the same signal (or data packet) is transmitted once in the 2 transmissions respectively. Assuming that the first preset condition is that the number of symbols of the time domain resource in the time slot is greater than or equal to 6, then the first slot does not meet the first preset condition, and does not perform frequency hopping in the time slot to send a signal (or data packet) once; and the 2 nd slot meets a first preset condition, and performs frequency hopping within the slot to send a signal (or a data packet) once. Assuming that the supported maximum frequency hopping number M is 2, dividing a symbol of the time domain resource in the 2 nd slot (i.e. symbol 0 to symbol 11 of the 2 nd slot, which are 12 symbols in total) into 2 parts, where the number of symbols in the two parts is as equal as possible, each part has 6 symbols, the first part uses carrier center frequency f1, and the second part uses carrier center frequency f2, and performs frequency hopping to transmit a signal (or a data packet) once. Wherein f1 and f2 are different frequencies. Specific values of f1 and f2 are not specifically limited in the embodiments of the present application.
For example, assuming that a communication system is configured to support transmission only once in a slot or an uplink period, as shown in fig. 10, time domain resources are allocated to symbols 12 to 11 of a 1 st slot, the time domain resources are divided into 3 transmissions, the 1 st transmission is symbols 12 and 13 of the 1 st slot, the 2 nd transmission is symbols 0 to 13 of the 2 nd slot, and the 3 rd transmission is symbols 0 to 11 of the 3 rd slot, where the same signal (or data packet) is transmitted once in the 3 transmissions respectively. Assuming that the first preset condition is that the number of symbols of the time domain resource in the time slot is greater than or equal to 6, then the 1 st slot does not meet the first preset condition, and does not perform frequency hopping in the time slot to send a signal (or data packet) once; and the 2 nd slot and the 3 rd slot both meet a first preset condition, and carry out frequency hopping within the slots to send a signal (or a data packet) once. Assuming that the supported maximum number of hops M is 2, then: dividing a symbol of a time domain resource in a 2 nd slot (namely, a symbol 0 to a symbol 13 of the 2 nd slot, and 14 symbols in total) into 2 parts, wherein the number of the symbols of the two parts is equal as much as possible, each part has 7 symbols, the first part adopts carrier central frequency f1, the second part adopts carrier central frequency f2, and frequency hopping is carried out to send a signal (or a data packet) once; dividing a symbol of a time domain resource in a 3 rd slot (namely, a symbol 0 to a symbol 11 of the 3 rd slot, which are 12 symbols in total) into 2 parts, wherein the number of the symbols of the two parts is as equal as possible, each part comprises 6 symbols, the first part adopts a carrier frequency f1, and the second part adopts a carrier center frequency f2, and performing frequency hopping to send a signal (or a data packet) once. Wherein f1 and f2 are different frequencies. Specific values of f1 and f2 are not specifically limited in the embodiments of the present application.
And S803, if one-time or multiple-time transmission is supported in the time slot or the uplink time period, dividing the time domain resource into N times of transmission according to the notification transmission times N, and carrying out frequency hopping on the N times of transmission by adopting M different carrier frequencies.
Wherein N is greater than or equal to M. N is a value configured in the access network device, and may be configured by an administrator of the access network device or may be obtained by other manners, which is not specifically limited in this embodiment of the application. The access network device notifies the terminal device of the notification transmission number N. The notification transmission number N may be the transmission number N indicated by the base station through dynamic scheduling signaling.
Specifically, in S803, the communication device divides the time domain resource into N transmissions according to the notification transmission frequency N, which means that the time domain resource is divided into N parts, the number of symbols of each part is as equal as possible, and each part is regarded as one transmission. Although the divided 1 transmission encounters a slot boundary in the actual transmission or the uplink/downlink switching point is subdivided into 2 transmissions, the hopping frequency is still determined as one transmission.
For example, assuming that a communication system is configured to support one or more transmissions in a slot or an uplink period, as shown in fig. 11, a time domain resource is allocated to a symbol 9 of a 1 st slot to a symbol 2 of a 2 nd slot, and assuming that the notified transmission number N is 2, a communication device divides the time domain resource into 2 parts, where the first part is the symbol 9 of the 1 st slot to the symbol 12, and the second part is the symbol 13 of the 1 st slot to the symbol 2 of the 2 nd slot. Wherein the first part transmits 1 time signal (or data packet) as one transmission, and the second part transmits 2 times signal (or data packet) divided into two transmissions by the time slot boundary. Assuming that the supported maximum frequency hopping number M is 2, the first part transmits a signal (or a packet) 1 time using the carrier center frequency f1, and the second part transmits a signal (or a packet) 2 times using the carrier center frequency f2, thereby performing frequency hopping. Wherein f1 and f2 are different frequencies. Specific values of f1 and f2 are not specifically limited in the embodiments of the present application.
It should be noted that the examples in the embodiments of the present application are only for describing the scheme of the present application by way of example, and are not intended to limit the specific implementation of the scheme.
According to the method for determining the frequency hopping frequency, on one hand, frequency hopping is carried out in a time slot or an uplink time period in the time slot or the uplink time period which meets the first preset condition, and frequency hopping can be avoided in the time slot or the uplink time period with a small number of symbols by reasonably configuring the first preset condition; on the other hand, the frequency hopping frequency is determined according to the notice transmission times N, the time slot boundary or the uplink and downlink switching point does not influence the determination of the frequency, and the phenomenon that the number of the symbols transmitted at a certain time is small due to the time slot boundary or the uplink and downlink switching point can be avoided. Therefore, the frequency hopping method provided by the application avoids the situation that a few symbols are transmitted at one time during frequency hopping, each transmission of the frequency hopping can bear the same data information and complete TB, the effect of diversity reception is achieved, and the purpose of frequency hopping is achieved.
Further, when there is only one maximum frequency hopping number, the method for determining a frequency hopping frequency may be directly performed, and when there are a plurality of maximum frequency hopping numbers, as shown in fig. 12, the method for determining a frequency hopping frequency provided in the embodiment of the present application may further include S804.
S804, the communication equipment determines M according to resource allocation or transmission bandwidth.
In a possible implementation, the corresponding relationship of M values with different resource allocations or transmission bandwidths may be configured in advance, and in S804, the communication device searches the preset corresponding relationship to determine M.
In another possible implementation, a preset rule for determining M may be configured in advance, and the value of M is determined by substituting resource allocation or transmission bandwidth into the preset rule in S804. The content of the preset rule may be configured according to actual requirements, which is not specifically limited in the embodiment of the present application.
When several alternative values of M are provided below, including 2 and 4, the communication device determines a specific implementation of M according to resource allocation or transmission bandwidth, but is not limited to this.
For example, the determining, by the communication device, the M according to resource allocation may specifically include: if the BWP bandwidth is greater than or equal to a preset threshold, determining that M is 4; and if the BWP bandwidth is smaller than a preset threshold value, determining that M is 2.
It should be noted that, the value of the preset threshold may be configured according to actual requirements, and this is not specifically limited in this application. For example, the preset threshold may be 50 RB.
Where the resource allocation in this example is BWP, it is provided by the access network device to the terminal device.
For another example, the determining, by the communications device, M according to the resource allocation or transmission bandwidth includes: if the frequency hopping carrier center frequency interval or the transmission bandwidth and the BWP bandwidth meet a second preset condition, determining that M is 4; and if the frequency hopping carrier center frequency interval or the transmission bandwidth and the BWP do not meet the second preset condition, determining that M is 2.
Wherein the frequency hopping carrier frequency interval or transmission bandwidth is indicated by higher layer signaling or DCI. The frequency hopping carrier frequency interval is the carrier frequency interval value of the frequency hopping indicated by the access network device through higher layer signaling or DCI. The transmission bandwidth is a frequency domain resource available for the access network device to transmit data through the terminal device indicated by the higher layer signaling or the DCI.
Specifically, the content of the second preset condition may be configured according to actual requirements, which is not specifically limited in this embodiment of the application. For example, the second preset condition may include: the frequency hopping carrier frequency spacing or transmission bandwidth is less than or equal to 1/4 for BWP.
In another aspect, an embodiment of the present application further provides a method for determining frequency hopping times, including: and determining the maximum frequency hopping times according to the resource allocation or the transmission bandwidth.
It should be noted that the specific implementation of the method for determining the frequency hopping number is the same as the foregoing process of S804, and is not described herein again.
The above description mainly introduces the scheme provided in the embodiment of the present application from the perspective of the operating principle of the communication device. It is to be understood that the above-described communication device, in order to implement the above-described functions, includes a corresponding hardware structure and/or software modules for performing the respective functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiment of the present application, the communication device may be divided into the functional modules according to the method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.
Fig. 13 shows a schematic diagram of a possible structure of the communication device 130 according to the above embodiment, in a case where functional modules are divided according to respective functions. As shown in fig. 13, the communication device 130 may include: an acquisition unit 1301 and a determination unit 1302. The obtaining unit 1301 is configured to execute the processes S801 and S804 in fig. 8 or fig. 12; the determination unit 1302 is configured to execute the processes S802, S803 in fig. 8 or fig. 12. All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.
Fig. 14 shows a schematic diagram of a possible structure of the communication device according to the above-described embodiment, in the case of an integrated unit. The communication device 140 may include: a processing module 1401, a communication module 1402. The processing module 1401 is used for controlling and managing the actions of the communication device 140, and the communication module 1402 is used for supporting the communication device 140 to communicate with other units or modules. For example, the processing module 1401 is configured to execute the processes S801 to S804 in fig. 8 or fig. 12. The communication device 140 may also include a storage module 1403 for storing program codes and data for the communication device 140.
When the processing module 1401 is a processor, the communication module 1402 is a transceiver, and the storage module 1403 is a memory, the communication device 140 in fig. 14 according to this embodiment of the present application may be the communication device 70 shown in fig. 7.
As described above, the communication device 130 or the communication device 140 provided in the embodiments of the present application may be used to implement the functions of the communication device in the methods implemented in the embodiments of the present application, and for convenience of description, only the portions related to the embodiments of the present application are shown, and details of the specific technology are not disclosed, please refer to the embodiments of the present application. The communication device 130 or the communication device 140 may be implemented as a terminal device or an access network device to implement the methods implemented by the embodiments of the present application.
In another aspect, an embodiment of the present application provides a communication system, where the communication system may include the communication device described in any of the above embodiments as a terminal device, and the communication device described in any of the above embodiments as an access network device.
As another form of the present embodiment, there is provided a computer-readable storage medium having stored thereon instructions that, when executed, perform the method of determining a hopping frequency in the above-described method embodiment.
As another form of the present embodiment, there is provided a computer program product containing instructions that, when executed, perform the method of determining a hopping frequency in the above-described method embodiment.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical functional division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another device, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, that is, may be located in one place, or may be distributed in a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The method provided by the embodiment of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a network appliance, a terminal, or other programmable apparatus. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., SSD), among others.
While the present application has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Claims (20)

1. A method of determining a frequency hopping frequency, comprising:
acquiring allocated time domain resources for transmitting data, wherein the time domain resources are positioned in at least one time slot or uplink time period;
if only one transmission is supported in a time slot or an uplink time period, and a first time slot or a first uplink time period in which the time domain resource is located meets a first preset condition, dividing a symbol of the time domain resource in the first time slot or the first uplink time period into M parts, and performing frequency hopping by adopting different carrier frequencies in each part; wherein, the first time slot is any time slot where the time domain resource is located; the first uplink time interval is any uplink time interval in which the time domain resource is located; m is the supported maximum frequency hopping times;
if the time slot or the uplink time interval supports multiple transmissions, dividing the time domain resource into N transmissions according to the notification transmission times N, wherein the N transmissions adopt M different carrier frequencies for frequency hopping; wherein N is greater than or equal to M.
2. The method according to claim 1, wherein the first preset condition comprises:
the number of symbols of the time domain resource in the time slot or the uplink time period is greater than or equal to a frequency hopping threshold value;
alternatively, the first and second electrodes may be,
and the ratio of the symbols of the time domain resources in the time slot or the uplink time interval to the total number of the symbols of the time slot is greater than or equal to the frequency hopping ratio.
3. The method of claim 2,
the frequency hopping threshold value or the frequency hopping occupation value is configured by a high-level signaling;
alternatively, the first and second electrodes may be,
the frequency hopping threshold value or the frequency hopping proportion value is configured by dynamic signaling;
alternatively, the first and second electrodes may be,
the frequency hopping threshold value or the frequency hopping proportion value is configured in advance.
4. The method of claim 1, wherein M is equal to 2.
5. The method according to any one of claims 1-4, further comprising:
and determining the M according to resource allocation or transmission bandwidth.
6. The method of claim 5, wherein the alternative values of M include 2 and 4, and wherein determining M based on the resource allocation comprises:
if the bandwidth of the partial band BWP is greater than or equal to a preset threshold value, determining that M is 4; and if the BWP bandwidth is smaller than the preset threshold, determining that M is 2.
7. The method of claim 5, wherein the alternative values of M comprise 2 and 4, and wherein determining M based on resource allocation or transmission bandwidth comprises:
if the frequency hopping carrier frequency interval or the transmission bandwidth and the bandwidth of the partial frequency band BWP meet a second preset condition, determining that M is 4; and if the frequency hopping carrier frequency interval or the transmission bandwidth and the BWP do not meet the second preset condition, determining that M is 2.
8. The method according to claim 7, wherein the second preset condition comprises:
the frequency hopping carrier frequency interval or the transmission bandwidth is less than or equal to 1/4 for the BWP.
9. A communication device, comprising:
an obtaining unit, configured to obtain a time domain resource of allocated transmission data, where the time domain resource is in at least one time slot or an uplink time period;
the determining unit is configured to, if only one transmission is supported in a time slot or an uplink period and a first time slot or a first uplink period in which the time domain resource is located meets a first preset condition, divide a symbol of the time domain resource in the first time slot or the first uplink period into M parts, and perform frequency hopping by using different carrier frequencies in each part; wherein, the first time slot is any time slot where the time domain resource is located; the first uplink time interval is any uplink time interval in which the time domain resource is located; m is the supported maximum frequency hopping times;
the determination unit is further configured to: if the time slot or the uplink time interval supports multiple transmissions, dividing the time domain resource into N transmissions according to the notification transmission times N, wherein the N transmissions adopt M different carrier frequencies for frequency hopping; wherein N is greater than or equal to M.
10. The communication device according to claim 9, wherein the first preset condition comprises:
the number of symbols of the time domain resource in the time slot or the uplink time period is greater than or equal to a frequency hopping threshold value;
alternatively, the first and second electrodes may be,
and the ratio of the symbols of the time domain resources in the time slot or the uplink time interval to the total number of the symbols of the time slot is greater than or equal to the frequency hopping ratio.
11. The communication device of claim 10,
the frequency hopping threshold value or the frequency hopping occupation value is configured by a high-level signaling;
alternatively, the first and second electrodes may be,
the frequency hopping threshold value or the frequency hopping proportion value is configured by dynamic signaling;
alternatively, the first and second electrodes may be,
the frequency hopping threshold value or the frequency hopping proportion value is configured in advance.
12. The communications device of claim 9, wherein M equals 2.
13. The communication device according to any of claims 9-12, wherein the determining unit is further configured to: and determining the M according to resource allocation or transmission bandwidth.
14. The communications device of claim 13, wherein the alternative values for M include 2 and 4, and wherein determining M based on resource allocation comprises:
if the bandwidth of the partial band BWP is greater than or equal to a preset threshold value, determining that M is 4; and if the BWP bandwidth is smaller than the preset threshold, determining that M is 2.
15. The communications device of claim 13, wherein the alternative values of M include 2 and 4, and wherein the determining unit is specifically configured to:
if the frequency hopping carrier frequency interval or the transmission bandwidth and the bandwidth of the partial frequency band BWP meet a second preset condition, determining that M is 4; and if the frequency hopping carrier frequency interval or the transmission bandwidth and the BWP do not meet the second preset condition, determining that M is 2.
16. The communications device of claim 15, wherein the second predetermined condition comprises:
the frequency hopping carrier frequency interval or the transmission bandwidth is less than or equal to 1/4 for the BWP.
17. A communication device comprising a memory, a processor and a program stored on the memory and executable on the processor, wherein the processor implements the method of determining a frequency hopping frequency of any one of claims 1 to 8 when executing the program.
18. A communication system comprising a communication device according to any of claims 9-17 as a terminal device and a communication device according to any of claims 9-17 as an access network device.
19. A computer-readable storage medium comprising instructions which, when run on a computer, cause the computer to perform the method of determining a frequency hopping frequency of any one of claims 1 to 8.
20. A computer program product comprising instructions which, when run on a computer, cause the computer to carry out the method of determining a frequency hopping frequency according to any one of claims 1 to 8.
CN201910256224.1A 2019-03-29 2019-03-29 Method, device and system for determining frequency hopping frequency Expired - Fee Related CN111756511B (en)

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KR20230165826A (en) * 2021-04-07 2023-12-05 베이징 시아오미 모바일 소프트웨어 컴퍼니 리미티드 Frequency hopping method and device
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