CN118139189A

CN118139189A - Transmission control method and device and communication equipment

Info

Publication number: CN118139189A
Application number: CN202211538584.9A
Authority: CN
Inventors: 宋振远; 吴凯
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2024-06-04
Also published as: WO2024114607A1

Abstract

The application discloses a transmission control method, a device and a communication device, belonging to the technical field of communication, wherein the transmission control method of the embodiment of the application comprises the steps that a first communication device estimates the target offset of a second communication device, and the target offset is used for indicating the time domain offset and/or the frequency domain offset of a transmission signal of the second communication device; the first communication device sends the parameter information of the target offset to the second communication device.

Description

Transmission control method and device and communication equipment

Technical Field

The present application belongs to the field of communication technology, and in particular, relates to a transmission control method, a transmission control device, and a communication device.

Background

Backscatter communication (Backscatter Communication, BSC), refers to the transmission of information by a backscatter communication device using radio frequency signals in other devices or environments for signal modulation (e.g., as shown in fig. 2).

One simple implementation of backscatter communication, as shown in fig. 3, is: when the Tag (Tag) needs to transmit '1', the Reader (Reader) reflects the incoming carrier signal, and when the Tag needs to transmit '0', the Tag does not reflect. Here, TX BB in fig. 3 represents a network side device originating baseband module; RX BB represents a network side device receiving end baseband processing module, logic represents a Logic unit, clock represents a Clock unit, demod represents a demodulator, RF HARVESTER represents an energy storage module of Tag.

However, in the communication between Reader and Tag, due to limited Tag hardware capability, the accuracy of the Tag transmission frequency or symbol duration length is poor, for example, the Tag frequency may shift between the frequency range { -22%, +22% }. Where the Tag frequency offset is severe, it may shift to the range of other signals, thereby increasing interference between signals.

Disclosure of Invention

The embodiment of the application provides a transmission control method, a transmission control device and communication equipment, which are used for solving the problem that the frequency of Tag transmission signals in the prior art is offset so as to increase mutual interference between signals.

In a first aspect, a transmission control method is provided, including:

the method comprises the steps that a first communication device estimates a target offset of a second communication device, wherein the target offset is used for indicating a time domain offset and/or a frequency domain offset of a transmission signal of the second communication device;

the first communication device sends the parameter information of the target offset to the second communication device.

In a second aspect, a transmission control method is provided, including:

the second communication equipment receives parameter information of target offset sent by the first communication equipment, wherein the target offset is used for indicating time domain offset and/or frequency domain offset of a signal transmitted by the second communication equipment;

and the second communication equipment adjusts time domain resources and/or frequency domain resources of signals transmitted by the second communication equipment according to the parameter information.

In a third aspect, there is provided a transmission control apparatus including:

An estimation module, configured to estimate a target offset of a second communication device, where the target offset is used to indicate a time domain offset and/or a frequency domain offset of a signal transmitted by the second communication device;

and the first sending module is used for sending the parameter information of the target offset to the second communication equipment.

In a fourth aspect, there is provided a transmission control apparatus including:

the first receiving module is used for receiving parameter information of target offset sent by the first communication equipment, wherein the target offset is used for indicating time domain offset and/or frequency domain offset of a signal transmitted by the second communication equipment;

And the adjusting module is used for adjusting the time domain resource and/or the frequency domain resource of the signal transmitted by the second communication equipment according to the parameter information.

In a fifth aspect, there is provided a communication device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first or second aspect.

In a sixth aspect, there is provided a transmission control system comprising: a first communication device operable to perform the steps of the transmission control method as described in the first aspect above, and a second communication device operable to perform the steps of the transmission control method as described in the second aspect above.

In a seventh aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.

In an eighth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the second aspect.

In a ninth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executable by at least one processor to implement the steps of the method according to the first or second aspect.

In the embodiment of the application, the first communication device can estimate the target offset of the second communication device, wherein the target offset is used for indicating the time domain offset and/or the frequency domain offset of the signal transmitted by the second communication device, so that the first communication device sends the parameter information of the target offset to the second communication device. Therefore, in the embodiment of the application, the first communication device can estimate the time domain offset and/or the frequency domain offset of the signal transmitted by the second communication device, so as to indicate the parameter information of the offset to the second communication device, so that the second communication device can adjust the time domain resource and/or the frequency domain resource based on the offset, thereby reducing the probability of mutual interference between the time domain resource and/or the frequency domain resource of the signal transmitted by the second communication device and the time domain resource and/or the frequency domain resource of other signals, and further improving the communication quality.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

FIG. 2 is one of the schematic diagrams of backscatter communications in an embodiment of the present application;

FIG. 3 is a second schematic diagram of backscatter communications in an embodiment of the present application;

FIG. 4 is a schematic diagram showing the states of an operation command and Tag (Tag) of a Reader (Reader) according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a flow of receiving and transmitting data by a Tag according to an embodiment of the present application;

Fig. 6 is a flowchart of a transmission control method in an embodiment of the present application;

fig. 7 is a flowchart of another transmission control method in an embodiment of the present application;

Fig. 8 is a schematic diagram of a frequency offset value and a transmission time offset value of a target object in an implementation of a transmission control method according to an embodiment of the present application;

fig. 9 is a schematic diagram of correlation values between candidate sequences corresponding to different frequency offset values and a synchronization sequence according to an embodiment of the present application;

Fig. 10 is a block diagram of a transmission control apparatus in the embodiment of the present application;

fig. 11 is a block diagram of another transmission control apparatus in the embodiment of the present application;

Fig. 12 is a block diagram of a communication device in an embodiment of the application;

Fig. 13 is a block diagram of a terminal in an embodiment of the present application;

fig. 14 is a block diagram of a network side device in an embodiment of the present application;

fig. 15 is a block diagram of another network side device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for exemplary purposes and NR terminology is used in much of the following description, but these techniques may also be applied to applications other than NR system applications, such as 6 th Generation (6G) communication systems.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a Mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side device called a notebook, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a palm Computer, a netbook, an ultra-Mobile Personal Computer (ultra-Mobile Personal Computer, UMPC), a Mobile internet appliance (Mobile INTERNET DEVICE, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) device, a robot, a wearable device (Wearable Device), a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (home device with a wireless communication function, such as a refrigerator, a television, a washing machine, a furniture, etc.), a game machine, a Personal Computer (Personal Computer, a PC), a teller machine, or a self-service machine, etc., and the wearable device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may include an access network device or a core network device, where the access network device may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function, or a radio access network element. The access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access Point, a WiFi node, or the like, where the base station may be referred to as a node B, an evolved node B (eNB), an access Point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a Basic service set (Basic SERVICE SET, BSS), an Extended service set (Extended SERVICE SET, ESS), a home node B, a home evolved node B, a transmission and reception Point (TRANSMITTING RECEIVING Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that the base station in the NR system is only described by way of example in the embodiment of the present application, and the specific type of the base station is not limited.

The core network device may include, but is not limited to, at least one of: core network nodes, core network functions, mobility management entities (Mobility MANAGEMENT ENTITY, MME), access Mobility management functions (ACCESS AND Mobility Management Function, AMF), session management functions (Session Management Function, SMF), user plane functions (User Plane Function, UPF), policy control functions (Policy Control Function, PCF), policy and Charging Rules Function (PCRF), edge application service discovery functions (Edge Application Server Discovery Function, EASDF), unified data management (Unified DATA MANAGEMENT, UDM), unified data warehousing (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network opening functions (Network Exposure Function, NEF), local NEF (Local NEF, or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like. It should be noted that, in the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.

In order to facilitate understanding of the transmission control method according to the embodiment of the present application, the following related art will be described first:

1. Backscatter communication device

The backscatter communication device may be one of:

First kind: the backscatter communication device in conventional RFID, typically a Tag, belongs to a Passive IoT device (Passive-IoT);

Second kind: semi-passive (semi-passive) tags, the downstream receiving or upstream reflecting of such tags has a certain amplifying capability;

Third kind: active Tag (active Tag), such terminals can actively generate carrier signals and transmit information to 5G base stations (the next Generation Node B, gNB) or readers independent of reflection of the incoming signals.

Wherein, the backscattering communication device can control the reflection coefficient Γ of the circuit by adjusting the internal impedance thereof, thereby changing the amplitude, frequency, phase, etc. of the incident signal, and realizing the modulation of the signal. Wherein the reflection coefficient of the signal can be characterized as:

Where Z ₀ represents the antenna characteristic impedance and Z ₁ represents the load impedance.

Assuming that the incident signal is S _in (t), the output signal isThus, by reasonably controlling the reflection coefficient, a corresponding amplitude modulation, frequency modulation or phase modulation can be achieved.

2. Information transfer between Reader and Tag in radio frequency identification (Radio Frequency Identification, RFID)

The operation instruction of the Reader is shown in table 1 and fig. 4:

TABLE 1 operation instruction of Reader

The states of tags are shown in table 2 and fig. 4.

TABLE 2 State of Tags

3. Transmit-receive flow between reader and label

As shown in fig. 5, in the protocol design of Ultra High Frequency (UHF) RFID, in the inventory mode, after the reader is required to send a Query command (Query), the tag responds to the response (Reply), i.e. a 16-bit random number is generated to the reader, and then the reader sends the sequence to the tag through an ACK command, and the tag sends the relevant data to the reader.

Wherein RN16 in fig. 5 represents a random number of length 16 bits; PC stands for protocol control (protocol control); PACKETCRC denotes a packet cyclic redundancy check.

The transmission control method provided by the embodiment of the application is described in detail below through some embodiments and application scenarios thereof with reference to the accompanying drawings.

In a first aspect, referring to fig. 6, a flowchart of a transmission control method according to an embodiment of the present application may include the following steps 601 to 602:

Step 601: the first communication device estimates a target offset for the second communication device.

Here, the first communication device may be a Reader, where the Reader may be a network side device or a terminal. The second communication device may be a Tag.

Wherein the target offset is used to indicate a time domain offset and/or a frequency domain offset of the second communication device transmission signal. It can be appreciated that the first communication device may estimate a time domain offset and/or a frequency domain offset of a signal transmitted by the second communication device, e.g., the first communication device is a Reader, and the second communication device is a Tag, and the Reader may estimate the time domain offset and/or the frequency domain offset when the Tag transmits the signal.

In addition, the time domain offset is the time domain resource adopted when the second communication equipment transmits signals, and is offset relative to the configured time domain resource; the frequency domain offset is the frequency domain resource adopted when the second communication equipment transmits signals, and is offset relative to the configured frequency domain resource.

Optionally, the target offset includes at least one of the following items a-1 to a-2:

a-1: a frequency offset value;

A-2: a duration offset value of a target object, the target object including at least one of a transmission unit symbol, a chip, a high level, and a low level.

The item A-1 is a frequency adopted when the second communication equipment transmits signals, and is an offset value relative to the configured frequency;

The above item a-2 indicates that the first communication device can estimate at least one of a duration offset value of a transmission unit symbol, a duration offset value of a chip, a duration offset value of a high level, a duration offset value of a low level, a duration offset value of a high level, and a duration offset value of a low level when the second communication device transmits a signal.

Here, the duration offset value of the transmission unit symbol, that is, the duration of the transmission unit symbol used by the second communication device for transmitting the signal, is offset value with respect to the duration of the transmission unit symbol used for transmitting the signal that has been configured;

The duration offset value of the chip, that is, the duration of the chip used by the second communication device to transmit the signal, is an offset value relative to the duration of the chip already configured to transmit the signal;

a high-level duration offset value, that is, an offset value of a high-level duration of a transmission signal of the second communication device with respect to a high-level duration of an already configured transmission signal;

a low-level duration offset value, that is, an offset value of a low-level duration of a transmission signal of the second communication device with respect to a low-level duration of an already configured transmission signal;

The high-level and low-level duration offset values, that is, the high-level and low-level durations of the transmission signal of the second communication device, are offset values with respect to the high-level and low-level durations of the transmission signal that has been configured.

Step 602: the first communication device sends the parameter information of the target offset to the second communication device.

After receiving the parameter information of the target offset sent by the first communication device, the second communication device may adjust the time domain resource and/or the frequency domain resource of the signal transmitted by the second communication device according to the parameter information, so as to transmit the signal by adopting the adjusted time domain resource and/or the adjusted frequency domain resource.

As can be seen from the above steps 601 to 602, in the embodiment of the present application, the first communication device can estimate a target offset of the second communication device, where the target offset is used to indicate a time domain offset and/or a frequency domain offset of a signal transmitted by the second communication device, so that the first communication device sends parameter information of the target offset to the second communication device. Therefore, in the embodiment of the application, the first communication device can estimate the time domain offset and/or the frequency domain offset of the signal transmitted by the second communication device, so as to indicate the parameter information of the offset to the second communication device, so that the second communication device can adjust the time domain resource and/or the frequency domain resource based on the offset, thereby reducing the probability of mutual interference between the time domain resource and/or the frequency domain resource of the signal transmitted by the second communication device and the time domain resource and/or the frequency domain resource of other signals, and further improving the communication quality.

Optionally, the step 601 "the first communication device estimates a target offset of a transmission signal of the second communication device" includes:

the first communication equipment respectively carries out correlation calculation on a synchronous sequence and each candidate sequence in a first set to obtain a corresponding correlation sequence, wherein the synchronous sequence is the synchronous sequence of a signal transmitted by the second communication equipment and received by the first communication equipment, and different candidate sequences correspond to different target offsets;

the first communication device selects the maximum value of each related sequence to form a target sequence;

The first communication device selects at least one value from the target sequence as a target related value;

And the first communication equipment determines the target offset corresponding to the candidate sequence corresponding to the target correlation value as the target offset of the signal transmitted by the second communication equipment.

Here, the candidate sequence corresponding to the target correlation value is the candidate sequence corresponding to the correlation sequence to which the target correlation value belongs.

It can be seen that a first set is stored on the first communication device side, where the first set includes a plurality of candidate sequences, and each candidate sequence corresponds to a corresponding target offset (i.e., a time domain offset and/or a frequency domain offset). Here, the target offset has a correspondence with the waveform of the transmission signal of the second communication device, and the waveform is sampled according to the sampling frequency corresponding to the waveform of the transmission signal after the target offset, so that a discrete sequence can be obtained, and the discrete sequence is a candidate sequence corresponding to the target offset.

For example, the first set includes L candidate sequences, the correlation sequence between the synchronization sequence and each candidate sequence may be calculated, so as to obtain L correlation sequences, and then the maximum value in each correlation sequence is selected to obtain a target sequence with L values, and then at least one value may be selected from the target sequence as the target correlation value, where the target offset corresponding to the candidate sequence corresponding to the target correlation value is the target offset of the transmission signal of the second communication device estimated by the first communication device.

Illustratively, the candidate sequences in the first set are { A1 A2 A3 A4 A5}, where the A3 sequence is a sequence in which no frequency domain offset and no time domain offset occur, and when the sampling rate per symbol corresponding to the sequence is 48, the sampling rates corresponding to the candidate sequences in the first set are respectively: {48-2x,48-x, 48+x,48+2x } (i.e., each candidate sequence has a corresponding sampling frequency);

If the target waveform is a waveform of a signal sent by the second communication device, performing correlation calculation with each candidate sequence in the A1 to A5 sequences based on a synchronization sequence obtained by the target waveform, so as to obtain 5 correlation sequences, and thus, a maximum value can be selected from the 5 correlation sequences respectively, the 5 maximum values form a target sequence, and further, at least one value can be selected from the target sequence as the target correlation value, for example, the selected target correlation value belongs to a correlation sequence corresponding to the A3 sequence, and then, a target offset corresponding to the A3 sequence is a target offset of the target waveform sent by the second communication device estimated by the first communication device (that is, the first communication device estimates that the target waveform sent by the second communication device does not have frequency domain offset and time domain offset).

In this way, in the embodiment of the present application, the first communication device may estimate the target offset of the second communication device by using a correlation value comparison method.

Optionally, the first communication device selects at least one value from the target sequence as a target related value, including:

The first communication device selects a value of M before ranking in a target ranking as the target related value, the target ranking being a ranking of values in the target sequence from large to small, M being greater than zero and less than or equal to a total number of values in the target sequence.

That is, the first communication device may select the value of M before ranking in the target rank as the target correlation value (for example, may select the maximum value in the target sequence as the target correlation value, or may select the maximum value, the second maximum value, and the third maximum value in the target sequence as the target correlation value). Here, the specific value of M may be set at the network side.

Optionally, the parameter information includes at least one of the following items B-1 to B-4:

B-1: a frequency offset value;

b-2: a second set including at least one frequency offset value, and a first index including an index of at least one frequency offset value in the second set;

B-3: a duration offset value of a target object, the target object including at least one of a transmission unit symbol, a chip, a high level, a low level;

b-4: a third set including a duration offset value for at least one of the target objects, and a second index including an index of the duration offset value for at least one of the target objects in the third set.

The above item B-1 represents: if the target offset of the second communication device estimated by the first communication device includes a frequency offset value, the first communication device may indicate the frequency offset value to the second communication device.

The above item B-2 represents: a second set may be maintained at the first communication device side, the second set including at least one frequency offset value, and if the target offset of the second communication device estimated by the first communication device includes the frequency offset value, the first communication device may indicate the second set, and an index of the frequency offset value estimated by the first communication device in the second set, to the second communication device.

The above item B-3 represents: if the target offset of the second communication device estimated by the first communication device includes a duration offset value of the target object, the first communication device may indicate the duration offset value of the target object to the second communication device.

The above item B-4 represents: a third set may be maintained at the first communication device side, the third set comprising the duration offset value of the at least one target object, and if the target offset of the second communication device estimated by the first communication device comprises the duration offset value of the target object, the first communication device may indicate the third set, and an index of the duration offset value of the target object estimated by the first communication device in the third set, to the second communication device.

It may be appreciated that the frequency offset value estimated by the first communication device may be one or more, and if the frequency offset value estimated by the first communication device is a plurality of frequency offset values, the first index in the above item B-2 includes a plurality of indexes in the second set; similarly, the duration offset value of the target object estimated by the first communication device may be one or more, and if the duration offset value of the target object estimated by the first communication device is a plurality of, the second index in the item B-4 includes a plurality of indexes in the third set.

Optionally, the second set is: -N x offset, …, -2 x offset, -offset,0, offset,2 x offset, …, N x offset ], wherein offset represents a step size of the frequency offset value and N represents a range value of the frequency offset value;

And/or the number of the groups of groups,

The third set is [ -K x t_offset, …, -2 x t_offset, -t_offset,0, t_offset,2 x t_offset, …, K x t_offset ], where t_offset represents a step size of the duration offset value of the target object and K represents a range value of the duration offset value of the target object.

Therefore, the frequency offset values in the second set may be ordered in order from smaller to larger, and the interval between every two adjacent frequency offset values is a first preset value (i.e. the offset); and/or, the duration offset values of the target objects in the third set may be ordered from small to large, and the duration interval of each two adjacent target objects is a second preset value (i.e. t_offset).

Optionally, the method further comprises:

the first communication device receives hardware capability information sent by the second communication device and a frequency offset range of the second communication device;

Wherein at least one of the offset and T offset, N, K is determined according to the hardware capability information and the frequency offset range of the second communication device.

I.e. the interval between every two adjacent frequency offset values in the second set and/or the interval between the durations of every two adjacent target objects in the third set, is determined according to the hardware capability information and the frequency offset range of the second communication device;

The maximum value of the frequency offset values in the second set and/or the maximum value of the duration offset values of the target objects in the third set is determined according to the hardware capability information and the frequency offset range of the second communication device;

and determining the minimum value of the frequency offset values in the second set and/or the minimum value of the duration offset values of the target objects in the third set according to the hardware capability information and the frequency offset range of the second communication device.

Optionally, the parameter information is carried in at least one of the following items C-1 to C-4:

C-1: a control command for checking;

C-2: a control command for inquiry;

c-3: a read control command;

C-4: and sending a control command for inquiring the identity of the second communication equipment.

The identity in the C-4 item can be a temporary identity.

From this, the first communication device may send the parameter information of the target offset to the second communication device, carrying the parameter information of the target offset in at least one of the items C-1 to C-4.

In a second aspect, referring to fig. 7, a flowchart of another transmission control method according to an embodiment of the present application may include the following steps 701 to 702:

Step 701: the second communication device receives the parameter information of the target offset sent by the first communication device.

a-1: a frequency offset value;

Step 702: and the second communication equipment adjusts time domain resources and/or frequency domain resources of signals transmitted by the second communication equipment according to the parameter information.

As can be seen from the foregoing steps 701 to 702, in the embodiment of the present application, the first communication device can estimate a target offset of the second communication device, where the target offset is used to indicate a time domain offset and/or a frequency domain offset of a signal transmitted by the second communication device, so that the first communication device sends parameter information of the target offset to the second communication device. Therefore, in the embodiment of the application, the first communication device can estimate the time domain offset and/or the frequency domain offset of the signal transmitted by the second communication device, so as to indicate the parameter information of the offset to the second communication device, so that the second communication device can adjust the time domain resource and/or the frequency domain resource based on the offset, thereby reducing the probability of mutual interference between the time domain resource and/or the frequency domain resource of the signal transmitted by the second communication device and the time domain resource and/or the frequency domain resource of other signals, and further improving the communication quality.

B-1: a frequency offset value;

And/or the number of the groups of groups,

Optionally, the method further comprises:

The second communication device sends hardware capability information and a frequency offset range of the second communication device to the first communication device;

C-1: a control command for checking;

C-2: a control command for inquiry;

c-3: a read control command;

The identity in the C-4 item can be a temporary identity.

Optionally, after the second communication device adjusts the time domain resource and/or the frequency domain resource of the signal transmitted by the second communication device according to the parameter information, the method further includes:

and transmitting the signal in the first time by adopting the adjusted time domain resource and/or the adjusted frequency domain resource.

Optionally, the method further comprises:

And transmitting signals in a second time by adopting the predetermined time domain resources and the predetermined frequency domain resources under the condition that the parameter information is not received.

It can be known that, when the second communication device receives the parameter information of the target offset sent by the first communication device, the signal can be transmitted in the first time by using the time domain resource and/or the frequency domain resource adjusted according to the parameter information; in the case where the second communication device does not receive the above parameter information, the signal may be transmitted in the second time using predetermined time domain resources and frequency domain resources (i.e., default time domain resources and frequency domain resources).

Optionally, the priority of the first time is higher than the second priority, that is, in the case of receiving the above parameter information, the priority of the time domain resource adjusted according to the parameter information and/or the priority of the frequency domain resource transmission signal adjusted is higher than the priority of the time domain resource and the frequency domain resource transmission signal determined in advance.

In summary, the specific implementation manner of the transmission control method according to the embodiment of the present application may be as follows:

On the Reader side, a second set is maintained: [ -N x offset, …, -2 x offset, -offset,0, offset,2 x offset, …, N x offset ] and/or third set: [ -K x t_offset, …, -2 x t_offset, -t_offset,0, t_offset,2 x t_offset, …, K x t_offset ].

Wherein, offset represents the step length of the frequency offset value, T_offset represents the step length of the duration offset value of the target object, N represents the range value of the frequency offset value, K represents the range value of the duration offset value of the target object, and the target object comprises at least one of transmission unit symbol, chip, high level and low level; the parameters N, offset, T _offset, K may be set to different values depending on the hardware capability reported by the Tag and the frequency offset range of the Tag.

In addition, each frequency offset value corresponds to a carrier frequency of an estimated Tag or a duration of a target object. For example, as shown in fig. 8, when the frequency offset value is 0, the waveform is not subjected to frequency offset, and the duration of one target object is B, which corresponds to the second waveform from top to bottom in the figure; when the frequency offset value is n×offset, at this time, the frequency is forward frequency offset, the frequency is increased, resulting in shortening the duration of the target object in the time domain, where the duration of the target object is a, and corresponds to the first waveform from top to bottom in the graph; when the frequency offset value is-n×offset, the frequency is subjected to negative frequency offset at this time, and the frequency is reduced, resulting in a longer duration of the target object in the time domain, and the duration of the target object is C. It follows that the duration of the target object is changed whether a positive or negative frequency offset occurs.

In addition, when each waveform in fig. 8 is sampled according to a corresponding sampling frequency, a discrete sequence may be obtained, and each discrete sequence may be stored as a candidate sequence in the first set, so that each candidate sequence in the first set corresponds to a frequency offset value and an offset value of a duration of a target object. Namely, the first set has a corresponding relation with the elements in the second set and the third set.

When the frequency offset occurs, whether the positive frequency offset or the negative frequency offset occurs, the duration of the target object is changed, and the corresponding candidate sequence is also changed, so that the correlation value between the synchronization sequence and the candidate sequence of the reflected signal sent by the Tag and received by the Reader is changed.

Assuming that the Tag generates a frequency offset of 2 x offset, in the second set on the Reader side, only the waveform corresponding to the frequency offset of 2 x offset can be matched with the waveform of the Tag generated with the frequency offset, that is, the maximum correlation value of the waveform corresponding to the frequency offset of 2 x offset in the second set (that is, the candidate sequence obtained by sampling the waveform corresponding to the frequency offset of 2 x offset in the second set, the maximum correlation value of the correlation sequence obtained by correlating the waveform corresponding to the frequency offset of Tag, and the values in the correlation sequences obtained by correlating the waveform corresponding to the other frequency offset values with the waveform transmitted by Tag received by the Reader are all smaller than the maximum correlation value, as shown in fig. 9.

After the Reader side estimates the frequency offset value of the Tag and/or the duration offset value of the target object, the Reader may feed back to the Tag at least one of the following a) to d):

a) A frequency offset value;

b) A second set of [ -N x offset, …, -2 x offset, -offset,0, offset,2 x offset, …, N x offset ] and at least one frequency offset value index f_index;

c) A duration offset value of the target object;

d) The third set [ -N x t_offset, …, -2 x t_offset, -t_offset,0, t_offset,2 x t_offset, …, N x t_offset ] and the duration offset value index t_index of the at least one target object.

Wherein at least one of the above a) to d) may be carried in at least one of:

Counting control signaling;

control signaling of inquiry;

Read control signaling;

And sending a control command for inquiring the identification of the Tag.

After the Tag receives at least one of the above a) to D) indicated by the Reader, transmitting according to the content indicated by the parameter information in the D1 time, if the Tag does not receive at least one of the above a) to D) fed back by the Reader, the Tag does not execute frequency offset adjustment and/or transmission time adjustment of the target object, and samples default time domain resources and frequency domain resources, and transmitting in the D2 time. Optionally: d1 has a higher priority than D2.

Therefore, in the embodiment of the application, the time domain offset and/or the frequency offset of the Tag can be estimated at the Reader side, the estimation result is indicated to the Tag, and the Tag adjusts the corresponding frequency domain resource and/or time domain resource according to the parameter information of the Reader, so that the Reader can better schedule and allocate resources after the Tag is transmitted on the specified frequency resource in the cellular network, and the interference between signals transmitted or received simultaneously is reduced.

In addition, it should be noted that the embodiments of the present application may be applicable to both direct communication between the Tag and the gNB, and communication between the UE-assisted Tag and the gNB.

According to the transmission control method provided by the embodiment of the application, the execution main body can be a transmission control device. In the embodiment of the present application, a transmission control method executed by a transmission control device is taken as an example, and the transmission control device provided in the embodiment of the present application is described.

In a third aspect, an embodiment of the present application further provides a transmission control apparatus applied to a first communication device, as shown in fig. 10, where the transmission control apparatus 100 includes:

An estimation module 1001, configured to estimate a target offset of a second communication device, where the target offset is used to indicate a time domain offset and/or a frequency domain offset of a signal transmitted by the second communication device;

A first sending module 1002, configured to send parameter information of the target offset to the second communication device.

Optionally, the estimating module 1001 includes:

a calculation sub-module, configured to perform correlation calculation on a synchronization sequence and each candidate sequence in the first set, to obtain a corresponding correlation sequence, where the synchronization sequence is a synchronization sequence of a signal transmitted by the second communication device and received by the first communication device, and different candidate sequences correspond to different target offsets;

the first selecting submodule is used for selecting the maximum value of each related sequence to form a target sequence;

A second selecting sub-module, configured to select at least one value from the target sequence as a target correlation value;

and the determining submodule is used for determining the target offset corresponding to the candidate sequence corresponding to the target correlation value as the target offset of the signal transmitted by the second communication equipment.

Optionally, the second selection submodule is specifically configured to:

the value of M before ranking in a target ranking is selected as the target correlation value, wherein the target ranking is the ranking of the values in the target sequence from big to small, and M is greater than zero and less than or equal to the total number of the values in the target sequence. .

Optionally, the target offset includes at least one of:

A frequency offset value;

a duration offset value of a target object, the target object including at least one of a transmission unit symbol, a chip, a high level, and a low level.

Optionally, the parameter information includes at least one of the following:

A frequency offset value;

A second set including at least one frequency offset value, and a first index including an index of at least one frequency offset value in the second set;

A duration offset value of a target object, the target object including at least one of a transmission unit symbol, a chip, a high level, a low level;

A third set including a duration offset value for at least one of the target objects, and a second index including an index of the duration offset value for at least one of the target objects in the third set.

And/or the number of the groups of groups,

Optionally, the apparatus further includes:

the second receiving module is used for receiving the hardware capability information sent by the second communication equipment and the frequency offset range of the second communication equipment;

Optionally, the parameter information is carried in at least one of:

A control command for checking;

a control command for inquiry;

A read control command;

and sending a control command for inquiring the identity of the second communication equipment.

The transmission control device in the embodiment of the application can be an electronic device, for example, an electronic device with an operating system, or can be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal or a network device. By way of example, the terminals may include, but are not limited to, the types of terminals 11 listed above, and the network-side devices may include, but are not limited to, the types of network-side devices 12 listed above, and embodiments of the present application are not specifically limited.

The transmission control device provided by the embodiment of the present application can implement each process implemented by the method embodiment of fig. 6, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

In a fourth aspect, an embodiment of the present application further provides a transmission control apparatus applied to a second communication device, as shown in fig. 11, where the transmission control apparatus 110 includes:

A first receiving module 1101, configured to receive parameter information of a target offset sent by a first communication device, where the target offset is used to indicate a time domain offset and/or a frequency domain offset of a signal transmitted by a second communication device;

And the adjusting module 1102 is configured to adjust a time domain resource and/or a frequency domain resource of the signal transmitted by the second communication device according to the parameter information.

Optionally, the parameter information includes at least one of the following:

A frequency offset value;

And/or the number of the groups of groups,

Optionally, the apparatus further includes:

A second transmitting module, configured to transmit hardware capability information and a frequency offset range of the second communication device to the first communication device;

Optionally, the parameter information is carried in at least one of:

A control command for checking;

a control command for inquiry;

A read control command;

Optionally, the apparatus further includes:

The first transmission module is configured to, after the adjustment module 1102 adjusts the time domain resource and/or the frequency domain resource of the signal transmitted by the second communication device according to the parameter information, transmit the signal in the first time by using the adjusted time domain resource and/or the adjusted frequency domain resource.

Optionally, the apparatus further includes:

and the second transmission module is used for transmitting signals in a second time by adopting the predetermined time domain resources and the predetermined frequency domain resources under the condition that the parameter information is not received.

The transmission control device in the embodiment of the application can be an electronic device, for example, an electronic device with an operating system, or can be a component in the electronic device, for example, an integrated circuit or a chip.

The transmission control device provided by the embodiment of the present application can implement each process implemented by the method embodiment of fig. 7, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

Optionally, as shown in fig. 12, the embodiment of the present application further provides a communication device 1200, including a processor 1201 and a memory 1202, where the memory 1202 stores a program or an instruction that can be executed on the processor 1201, for example, when the communication device 1200 is a first communication device, the program or the instruction implements the steps of the embodiment of the transmission control method described in the first aspect when executed by the processor 1201, and can achieve the same technical effects. When the communication device 1200 is a second communication device, the program or the instruction, when executed by the processor 1201, implements the steps of the embodiment of the transmission control method described in the second aspect, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal, as shown in fig. 13, which is a schematic diagram of a hardware structure of the terminal for implementing the embodiment of the application.

The terminal 1300 includes, but is not limited to: at least some of the components of the radio frequency unit 1301, the network module 1302, the audio output unit 1303, the input unit 1304, the sensor 1305, the display unit 1306, the user input unit 1307, the interface unit 1308, the memory 1309, the processor 1310, and the like.

Those skilled in the art will appreciate that the terminal 1300 may further include a power source (e.g., a battery) for supplying power to the various components, and the power source may be logically connected to the processor 1310 through a power management system, so as to perform functions of managing charging, discharging, and power consumption management through the power management system. The terminal structure shown in fig. 13 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 1304 may include a graphics processing unit (Graphics Processing Unit, GPU) 13041 and a microphone 13042, with the graphics processor 13041 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 1306 may include a display panel 13061, and the display panel 13061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1307 includes at least one of a touch panel 13071 and other input devices 13072. The touch panel 13071 is also referred to as a touch screen. The touch panel 13071 may include two parts, a touch detection device and a touch controller. Other input devices 13072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from a network side device, the radio frequency unit 1301 may transmit the downlink data to the processor 1310 for processing; in addition, the radio frequency unit 1301 may send uplink data to the network side device. Typically, the radio unit 1301 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 1309 may be used to store software programs or instructions and various data. The memory 1309 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 1309 may include volatile memory or nonvolatile memory, or the memory 1309 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), static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate Synchronous dynamic random access memory (Double DATA RATE SDRAM, DDRSDRAM), enhanced Synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCH LINK DRAM, SLDRAM), and Direct random access memory (DRRAM). Memory 1309 in embodiments of the application include, but are not limited to, these and any other suitable types of memory.

The processor 1310 may include one or more processing units; optionally, processor 1310 integrates an application processor that primarily handles operations related to the operating system, user interface, and applications, and a modem processor that primarily handles wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1310.

Wherein the processor 1310 is configured to estimate a target offset of a second communication device, where the target offset is configured to indicate a time domain offset and/or a frequency domain offset of a transmission signal of the second communication device;

the radio frequency unit 1301 is configured to send parameter information of the target offset to the second communication apparatus.

Optionally, the processor 1310 estimates a target offset of the signal transmitted by the second communication device, specifically for:

Respectively carrying out correlation calculation on a synchronous sequence and each candidate sequence in a first set to obtain a corresponding related sequence, wherein the synchronous sequence is the synchronous sequence of a signal transmitted by the second communication equipment and received by the first communication equipment, and different candidate sequences correspond to different target offsets;

selecting the maximum value of each related sequence to form a target sequence;

Selecting at least one value from the target sequence as a target related value;

And determining the target offset corresponding to the candidate sequence corresponding to the target correlation value as the target offset of the signal transmitted by the second communication equipment.

Optionally, the processor 1310 selects at least one value from the target sequence as a target related value, specifically for:

Optionally, the target offset includes at least one of:

A frequency offset value;

Optionally, the parameter information includes at least one of the following:

A frequency offset value;

And/or the number of the groups of groups,

The third set is [ -K x t_offset, …, -2 x t_offset, -t_offset,0, t_offset,2 x t_offset, …, K x t_offset ], where t_offset represents a step size of the duration offset value of the target object and K represents a range value of the duration offset value of the target object. Optionally, the radio frequency unit 1301 is further configured to: receiving hardware capability information sent by the second communication equipment and a frequency offset range of the second communication equipment;

Optionally, the parameter information is carried in at least one of:

A control command for checking;

a control command for inquiry;

A read control command;

The embodiment of the present application further provides a network side device, as shown in fig. 14, where the network side device 1400 includes: an antenna 141, a radio frequency device 142, a baseband device 143, a processor 144, and a memory 145. The antenna 141 is connected to the radio frequency device 142. In the uplink direction, the radio frequency device 142 receives information via the antenna 141, and transmits the received information to the baseband device 143 for processing. In the downlink direction, the baseband device 143 processes information to be transmitted, and transmits the processed information to the radio frequency device 142, and the radio frequency device 142 processes the received information and transmits the processed information through the antenna 141.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 143, where the baseband apparatus 143 includes a baseband processor.

The baseband device 143 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 14, where one chip, for example, a baseband processor, is connected to the memory 145 through a bus interface, so as to call a program in the memory 145 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 146, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 1400 of the embodiment of the present application further includes: instructions or programs stored in the memory 145 and executable on the processor 144, the processor 144 invokes the instructions or programs in the memory 145 to perform the method of fig. 6 and achieve the same technical result, and are not repeated here.

The embodiment of the application also provides network side equipment. As shown in fig. 15, the network side device 1500 includes: a processor 1501, a network interface 1502 and a memory 1503. The network interface 1502 is, for example, a CPRI interface.

Specifically, the network side device 1500 of the embodiment of the present application further includes: instructions or programs stored in the memory 1503 and executable on the processor 1501, the processor 1501 calls the instructions or programs in the memory 1503 to perform the method shown in fig. 6 and achieve the same technical effect, so repetition is avoided and will not be described here.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above-mentioned transmission control method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or instructions, implement each process of the embodiment of the transmission control method described in the first aspect or the second aspect, and achieve the same technical effect, so that repetition is avoided, and no further description is provided herein.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

Embodiments of the present application further provide a computer program/program product stored in a storage medium, where the computer program/program product is executed by at least one processor to implement the respective processes of the embodiments of the transmission control method described in the first aspect or the second aspect, and achieve the same technical effects, so that repetition is avoided and no further description is given here.

The embodiment of the application also provides a transmission control system, which comprises: a first communication device operable to perform the steps of the transmission control method as described in the first aspect above, and a second communication device operable to perform the steps of the transmission control method as described in the second aspect above.

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. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

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 application may be embodied essentially or in a part contributing to the prior art in the form of a computer 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 application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application 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 application and the scope of the claims, which are to be protected by the present application.

Claims

1. A transmission control method, characterized by comprising:

2. The method of claim 1, wherein the first communication device estimating a target offset for a signal transmitted by a second communication device comprises:

3. The method of claim 2, wherein the first communication device selecting at least one value from the target sequence as a target correlation value comprises:

4. The method of claim 1, wherein the target offset comprises at least one of:

A frequency offset value;

5. The method of claim 1, wherein the parameter information comprises at least one of:

A frequency offset value;

6. The method of claim 5, wherein the step of determining the position of the probe is performed,

The second set is: -N x offset, …, -2 x offset, -offset,0, offset,2 x offset, …, N x offset ], wherein offset represents a step size of the frequency offset value and N represents a range value of the frequency offset value;

And/or the number of the groups of groups,

7. The method of claim 6, wherein the method further comprises:

8. The method of claim 1, wherein the parameter information is carried in at least one of:

A control command for checking;

a control command for inquiry;

A read control command;

9. A transmission control method, characterized by comprising:

10. The method of claim 9, wherein the parameter information comprises at least one of:

A frequency offset value;

11. The method of claim 10, wherein the second set is: -N x offset, …, -2 x offset, -offset,0, offset, 2x offset, …, N x offset ], wherein offset represents a step size of the frequency offset value and N represents a range value of the frequency offset value;

And/or the number of the groups of groups,

12. The method of claim 11, wherein the method further comprises:

13. The method of claim 9, wherein the parameter information is carried in at least one of:

A control command for checking;

a control command for inquiry;

A read control command;

14. The method according to claim 9, wherein after the second communication device adjusts the time domain resource and/or the frequency domain resource of the signal transmitted by the second communication device according to the parameter information, the method further comprises:

15. The method according to claim 9, wherein the method further comprises:

16. A transmission control apparatus, characterized by comprising:

17. A transmission control apparatus, characterized by comprising:

18. A communication device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the transmission control method according to any one of claims 1 to 8, or implement the steps of the transmission control method according to any one of claims 9 to 15.

19. A readable storage medium, characterized in that a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the transmission control method according to any one of claims 1 to 8, or implements the steps of the transmission control method according to any one of claims 9 to 15.