CN110214427B - Method, device and medium for sending and receiving feedback information - Google Patents

Method, device and medium for sending and receiving feedback information Download PDF

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CN110214427B
CN110214427B CN201980000756.7A CN201980000756A CN110214427B CN 110214427 B CN110214427 B CN 110214427B CN 201980000756 A CN201980000756 A CN 201980000756A CN 110214427 B CN110214427 B CN 110214427B
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cyclic shift
feedback information
values
sequences
determining
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CN110214427A (en
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赵群
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]

Abstract

The disclosure relates to a method, a device and a medium for sending and receiving feedback information, wherein the sending method is applied to a first transmission device of two transmission devices, and comprises the following steps: configuring a base sequence to generate N cyclic shift sequences, wherein N is an integer greater than 1; and sending the N cyclic shift sequences to a second device. The receiving method is applied to a second transmission device of the two transmission devices, and comprises the following steps: receiving N cyclic shift sequences sent by first equipment; determining N cyclic shift configuration values for the N cyclic shift sequences; and determining feedback information returned by the first equipment according to the N cyclic shift configuration values. The method and the device can eliminate the influence of signal delay on cyclic shift detection, and effectively improve the reliability and the transmission efficiency of the feedback channel.

Description

Method, device and medium for sending and receiving feedback information
Technical Field
The present disclosure relates to the field of wireless communication technologies, and in particular, to a method, an apparatus, and a medium for transmitting and receiving feedback information.
Background
The continuous emergence of new internet applications puts higher demands on wireless communication technologies, driving the wireless communication technologies to evolve continuously to meet the demands of applications. Currently, cellular mobile communication technology is in the evolution stage of new generation technology.
Vehicle networking communication is also called vehicle to other devices (V2 x) includes the following three communication modes: a vehicle-to-vehicle (V2V) communication method, a vehicle-to-Infrastructure (V2I) communication method, and a vehicle-to-pedestrian (V2P) communication method. The car networking communication technology can effectively improve traffic safety, improve traffic efficiency and enrich the traveling experience of people.
The existing cellular communication technology is utilized to support the vehicle networking communication, so that the existing base station deployment can be effectively utilized, the equipment overhead is reduced, the Service with Quality of Service (QoS) guarantee is provided, and the requirement of the vehicle networking Service is met. Therefore, support for vehicle networking communications V2x by cellular networks, namely cellular based V2x (cellular based V2x, C-V2x), is provided in Rel-14/15 in Long Term Evolution (LTE) technology. In C-V2x, communication between the vehicle-mounted device and other devices may be relayed through the base station and the core network, that is, communication may be performed by using a communication link (e.g., uplink UL or downlink DL) between the terminal device and the base station in the original cellular network, or communication may be performed directly through a direct link (sidelink) between the devices. Compared with the uplink/downlink, the direct link communication has the characteristics of short time delay, low cost and the like, and is very suitable for direct communication between the vehicle-mounted equipment and other peripheral equipment with close geographic positions.
The V2x sidelink communication in LTE can only support some Basic security applications, such as voice broadcast communication of Basic security information (BSM-Basic security Message) like Cooperative Awareness Messages (CAM) or Distributed Environment Notification Messages (DENM). With the recent development of technologies such as autopilot, new requirements are put on the performance of the V2x technology in order to support new V2x services. The use of New Radio (NR) 5G technology to support New V2x communication services and scenarios has been planned by 3GPP as an important element of Rel 16. The 3GPP working group has established some new service requirements that V2x communication needs to meet, including fleet management (Vehicles planning), awareness extensions (Extended Sensors), Advanced Driving (Advanced Driving), and remote Driving (remote Driving). Overall, NR V2x sidelink is required to provide higher communication rate, shorter communication delay, and more reliable communication quality.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a method, an apparatus, and a medium for transmitting and receiving feedback information.
According to an aspect of the embodiments of the present disclosure, a method for sending feedback information is provided, which is applied to a first transmission device of two transmission devices, and includes:
configuring a base sequence to generate N cyclic shift sequences, wherein N is an integer greater than 1;
and sending the N cyclic shift sequences to a second device.
Optionally, the configuring the base sequence to generate N cyclic shift sequences includes: determining a relative value or a relative value set of a cyclic shift configuration value corresponding to feedback information to be transmitted; determining the N cyclic shift configuration values from the relative value or set of relative values; and performing cyclic shift on the base sequence by using the N cyclic shift configuration values to obtain N cyclic shift sequences.
Optionally, the set of relative values comprises N-1 relative values, the N-1 relative values being relative values between two adjacent ones of the N cyclic shift configuration values in the sequential order; said determining N cyclic shift configuration values from the set of relative values comprises: and enabling relative values between every two adjacent cyclic shift configuration values in the N cyclic shift configuration values to respectively correspond to the N-1 relative values.
Optionally, when N is 2, the relative value of the N cyclic shift configuration values is an integer multiple of L/(2^ M) rounded down, where L is the base sequence length and M is the bit number of the feedback information.
Optionally, when N is greater than 2, the relative values between two adjacent cyclic shift configuration values in the N cyclic shift configuration values in sequence are the same.
Optionally, the sending the N cyclic shifted sequences to the second device includes one of the following manners: dividing a segment of frequency domain resources on the same time domain resource into N parts, wherein each cyclic shift sequence occupies one part; dividing a segment of time domain resources into N parts, wherein each cyclic shift sequence occupies one part, and the frequency domain resources occupied by each cyclic shift sequence are the same; a segment of time domain resources are divided into N parts, each cyclic shift sequence occupies one part, and the frequency domain resources occupied by each cyclic shift sequence are different.
Optionally, the sending the N cyclic shifted sequences to the second device includes: repeatedly transmitting the N cyclic shift sequences; the repeatedly transmitting the N cyclic shifted sequences comprises one of the following ways: dividing a section of frequency domain resources on the same frequency domain resource into Y groups, wherein each group is divided into N parts, each N cyclic shift sequences occupies one group, and each cyclic shift sequence occupies one part; and respectively determining a section of frequency domain resources on the Y frequency domain resources, dividing each section of frequency domain resources into N parts, wherein each N cyclic shift sequence occupies a section of frequency domain resources, and each cyclic shift sequence occupies one part.
Optionally, the method further comprises: constructing T groups of additional sequences, wherein the number of cyclic shift sequences contained in each group of additional sequences is N, and the relative values of cyclic shift configuration values of the ith cyclic shift sequence in each group of additional sequences and the ith cyclic shift sequence in the N cyclic shift sequences are the same; i is an integer greater than 0 and less than N; the transmitting the N cyclic shifted sequences comprises: and transmitting N cyclic shift sequences and the T groups of additional sequences.
Optionally, the method further comprises: setting a mapping relation set, wherein the mapping relation set comprises a mapping relation between a value of feedback information and a relative value of a cyclic shift configuration value or a relative value set; the values of different feedback information correspond to the relative values or relative value sets of different cyclic shift configuration values; the determining a relative value or a relative value set of a cyclic shift configuration value corresponding to feedback information to be transmitted includes: and determining a relative value or a relative value set of the cyclic shift configuration value corresponding to the value of the feedback information to be transmitted according to the mapping relation set.
According to another aspect of the embodiments of the present disclosure, there is provided a method for receiving a feedback channel, applied to a second transmission device of two transmission devices, including:
receiving N cyclic shift sequences sent by first equipment; wherein N is an integer greater than 1;
determining N cyclic shift configuration values for the N cyclic shift sequences;
and determining feedback information returned by the first equipment according to the N cyclic shift configuration values.
Optionally, before the receiving the N cyclic shift sequences sent by the first device, the method further includes: setting relative values or relative value sets of cyclic shift configuration values corresponding to different feedback information; the determining feedback information returned by the first device according to the N cyclic shift configuration values includes: determining a relative value or a set of relative values of N cyclic shift configuration values of the N cyclic shift sequences; and determining feedback information returned by the first equipment according to the relative value or the relative value set.
According to another aspect of the embodiments of the present disclosure, there is provided a method for receiving a feedback channel, applied to a first transmission device of two transmission devices, including:
determining a base sequence corresponding to feedback information to be transmitted;
and sending the base sequence corresponding to the feedback information to a second transmission device.
Optionally, before determining the base sequence corresponding to the feedback information to be transmitted, the method further includes: setting a mapping relation between values of the feedback information and the base sequence, wherein different values of the feedback information correspond to different base sequences; the determining of the base sequence corresponding to the feedback information to be transmitted includes: and inquiring a base sequence corresponding to the value of the feedback information to be transmitted in the mapping relation.
According to another aspect of the embodiments of the present disclosure, there is provided a method for receiving feedback information, applied to a second transmission device of two transmission devices, including:
receiving a base sequence sent by first equipment;
and determining feedback information returned by the first equipment according to the base sequence.
Optionally, before receiving the base sequence sent by the first device, the method further includes: setting a mapping relation between the feedback information and the base sequence, wherein values of different feedback information correspond to different base sequences; the determining feedback information returned by the first device according to the base sequence includes: and inquiring the value of the feedback information corresponding to the base sequence in the mapping relation.
According to another aspect of the embodiments of the present disclosure, there is provided a device for sending feedback information, which is applied to a first transmission device of two transmission devices, and includes:
a generating module, configured to configure a base sequence and generate N cyclic shift sequences, where N is an integer greater than 1;
and the sending module is used for sending the N cyclic shift sequences to the second equipment.
Optionally, the generating module includes:
the first determining unit is used for determining a relative value or a relative value set of cyclic shift configuration values corresponding to the feedback information to be transmitted;
a second determining unit, configured to determine the N cyclic shift configuration values according to the relative value or the relative value set;
and the cyclic shift unit is used for performing cyclic shift on the base sequence by using the N cyclic shift configuration values to obtain N cyclic shift sequences.
Optionally, the set of relative values comprises N-1 relative values, the N-1 relative values being relative values between two adjacent ones of the N cyclic shift configuration values in the sequential order; the second determining unit is further configured to determine N cyclic shift configuration values from the set of relative values using the following method: and enabling relative values between every two adjacent cyclic shift configuration values in the N cyclic shift configuration values to respectively correspond to the N-1 relative values.
Optionally, when N is 2, the relative value of the cyclic shift configuration value is an integer multiple of L/(2^ M) rounded down, where L is the base sequence length and M is the bit number of the feedback information.
Optionally, when N is greater than 2, the relative values between two adjacent cyclic shift configuration values in the N cyclic shift configuration values in sequence are the same.
Optionally, the sending module is further configured to send the N cyclic shifted sequences to the second device by using one of the following manners:
dividing a segment of frequency domain resources on the same frequency domain resource into N parts, wherein each cyclic shift sequence occupies one part;
dividing a section of frequency domain resources into N parts, wherein each cyclic shift sequence occupies one part, and the frequency domain resources occupied by each cyclic shift sequence are the same;
a segment of time domain resources are divided into N parts, each cyclic shift sequence occupies one part, and the frequency domain resources occupied by each cyclic shift sequence are different.
Optionally, the sending module is further configured to repeatedly send the N cyclic shift sequences; repeatedly transmitting the N cyclically shifted sequences using one of the following:
dividing a section of frequency domain resources on the same time domain resource into Y groups, wherein each group is divided into N parts, each N cyclic shift sequences occupies one group, and each cyclic shift sequence occupies one part;
and respectively determining a section of frequency domain resources on the Y time domain resources, dividing each section of frequency domain resources into N parts, wherein each N cyclic shift sequence occupies a section of frequency domain resources, and each cyclic shift sequence occupies one part.
Optionally, the sending apparatus further includes: the sequence construction module is used for constructing T groups of additional sequences, the number of cyclic shift sequences contained in each group of additional sequences is N, and the relative values of cyclic shift configuration values of the ith cyclic shift sequence in each group of additional sequences and the ith cyclic shift sequence in the N cyclic shift sequences are the same; i is an integer greater than 0 and less than N; the sending module is further configured to send the T group of additional sequences.
Optionally, the sending apparatus further includes:
the setting module is used for setting a mapping relation set, wherein the mapping relation set comprises a mapping relation between a value of the feedback information and a relative value or a relative value set of a cyclic shift configuration value; the values of different feedback information correspond to the relative values or relative value sets of different cyclic shift configuration values;
the first determining unit is further configured to determine a relative value or a set of relative values of cyclic shift configuration values corresponding to feedback information to be transmitted by using the following method: and determining a relative value or a relative value set of the cyclic shift configuration value corresponding to the value of the feedback information to be transmitted according to the mapping relation set.
According to another aspect of the embodiments of the present disclosure, there is provided a sending apparatus of feedback information, applied to a first transmission device of two transmission devices, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
configuring a base sequence to generate N cyclic shift sequences, wherein N is an integer greater than 1;
and sending the N cyclic shift sequences to a second device.
According to another aspect of the embodiments of the present disclosure, there is provided a receiving apparatus of feedback information, applied to a second transmission device of two transmission devices, including:
a receiving module, configured to receive N cyclic shift sequences sent by a first device; wherein N is an integer greater than 1;
a first determining module, configured to determine a cyclic shift configuration value of each cyclic shift sequence;
and a second determining module, configured to determine, according to the N cyclic shift configuration values, feedback information returned by the first device.
Optionally, the receiving apparatus further includes:
the setting module is used for setting relative values or relative value sets of cyclic shift configuration values corresponding to different feedback information;
the second determining module is further configured to determine feedback information returned by the first device according to the N cyclic shift configuration values by using the following method: determining a relative value or a relative value set of N cyclic shift configuration values of the N cyclic shift sequences, and determining feedback information returned by the first device according to the relative value or the relative value set.
According to another aspect of the embodiments of the present disclosure, there is provided a receiving apparatus of a feedback channel, applied to a second transmission device of two transmission devices, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
receiving N cyclic shift sequences sent by first equipment; wherein N is an integer greater than 1;
determining N cyclic shift configuration values for the N cyclic shift sequences;
and determining feedback information returned by the first equipment according to the N cyclic shift configuration values.
According to another aspect of the embodiments of the present disclosure, there is provided a sending apparatus of a feedback channel, applied to a first transmission device of two transmission devices, including:
the determining module is used for determining a base sequence corresponding to the feedback information to be transmitted;
and the sending module is used for sending the base sequence corresponding to the feedback information to second transmission equipment.
Optionally, the sending apparatus further includes:
the setting module is used for setting the mapping relation between the values of the feedback information and the base sequence, and different values of the feedback information correspond to different base sequences;
the determining module is further configured to select different base sequences according to different feedback information using the following method: and inquiring a base sequence corresponding to the value of the feedback information to be transmitted in the mapping relation.
According to another aspect of the embodiments of the present disclosure, there is provided a sending apparatus of a feedback channel, applied to a first transmission device of two transmission devices, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
determining a base sequence corresponding to feedback information to be transmitted;
and sending the base sequence corresponding to the feedback information to a second transmission device.
According to another aspect of the embodiments of the present disclosure, there is provided a receiving apparatus of a feedback channel, applied to a second transmission device of two transmission devices, including:
the receiving module is used for receiving the base sequence sent by the first equipment;
and the determining module is used for determining the feedback information returned by the first equipment according to the base sequence.
Optionally, the receiving apparatus further includes a setting module, configured to set a mapping relationship between the feedback information and the base sequence, where values of different feedback information correspond to different base sequences;
the determining module is further configured to determine feedback information returned by the first device according to the base sequence by using the following method: and inquiring the value of the feedback information corresponding to the base sequence in the mapping relation.
According to another aspect of the embodiments of the present disclosure, there is provided a receiving apparatus of a feedback channel, applied to a second transmission device of two transmission devices, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
receiving a base sequence sent by first equipment;
and determining feedback information returned by the first equipment according to the base sequence.
According to another aspect of the embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium, wherein instructions, when executed by a processor of a mobile terminal, enable the mobile terminal to perform the above-described method for transmitting feedback information or the above-described method for receiving feedback information.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the technical scheme provided by the embodiment of the disclosure relates to at least two cyclic shift sequences, and the influence of signal delay on cyclic shift detection can be eliminated by setting a fixed relative relation to cyclic shift configuration values of the cyclic shift sequences, so that the reliability and the transmission efficiency of a feedback channel are effectively improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and do not constitute a limitation of the embodiments of the invention. In the drawings:
the accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a flow chart illustrating a method of transmitting feedback information according to an example embodiment;
FIG. 2 is a diagram illustrating time-frequency resources for transmitting cyclically shifted sequences in accordance with an example embodiment;
FIG. 3 is a diagram illustrating time-frequency resources for transmitting cyclically shifted sequences in accordance with an example embodiment;
FIG. 4 is a diagram illustrating time-frequency resources for transmitting cyclically shifted sequences in accordance with an example embodiment;
FIG. 5 is a diagram illustrating time-frequency resources for transmitting cyclically shifted sequences in accordance with an example embodiment;
FIG. 6 is a diagram illustrating time-frequency resources for transmitting cyclically shifted sequences in accordance with an example embodiment;
FIG. 7 is a diagram illustrating time-frequency resources for transmitting cyclically shifted sequences in accordance with an example embodiment;
fig. 8 is a flowchart illustrating a method of receiving feedback information according to an exemplary embodiment;
fig. 9 is a flow chart illustrating a method of transmitting feedback information in accordance with an example embodiment;
fig. 10 is a flowchart illustrating a method of receiving feedback information according to an exemplary embodiment;
fig. 11 is a block diagram illustrating an apparatus for transmitting feedback information according to an example embodiment;
fig. 12 is a block diagram illustrating an apparatus for receiving feedback information in accordance with an example embodiment;
fig. 13 is a block diagram illustrating an apparatus for transmitting feedback information according to an example embodiment;
fig. 14 is a block diagram illustrating an apparatus for receiving feedback information according to an example embodiment;
fig. 15 is a block diagram illustrating a transmitting apparatus or a receiving apparatus of feedback information according to an example embodiment.
Detailed Description
Embodiments of the invention will now be described with reference to the accompanying drawings and detailed description.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
In the discussion of NR V2x, RAN WG1(RAN1) resolves to support a Hybrid automatic repeat request (HARQ) mechanism using the physical layer for unicast, multicast traffic for direct communication. For HARQ Feedback information, a Physical layer direct Feedback Channel (PSFCH) is used for transmission.
In the NR Uu Uplink HARQ feedback, a Physical Uplink Control Channel (PUCCH) format 0(format0) and a PUCCH format1 are defined for performing HARQ feedback of less than or equal to 2 bits; the format0 uses 1 or 2 OFDM time domain symbols for transmission, and the format1 uses more than or equal to 4 OFDM time domain symbols for transmission. Considering that NR V2x needs to support many services with strict delay requirements, it is more advantageous to use shorter OFDM time domain symbols.
The format of NR PUCCH format0 is shown in TS 38.2116.3.2.3. Format0 transmits HARQ information using a sequence detection method. The Format0 signal is a sequence with a length of 12, and occupies a frequency domain Resource of 1 Physical Resource Block (PRB) for transmission. The above sequence is obtained by performing cyclic shift (cyclic shift) on a base sequence, and different values of the cyclic shift represent different feedback information.
The cyclic shift of the base sequence is as follows:
Figure BDA0002077873340000101
0≤n＜MZC(ii) a Where alpha is the value of the cyclic shift,
Figure BDA0002077873340000111
is a base sequence, MZCIs the length of the base sequence.
The cyclic shift value of the PUCCH format0 sequence is:
Figure BDA0002077873340000112
wherein
Figure BDA0002077873340000113
Is a constant (e.g., the number of subcarriers of one PRB is 12), m0Is an initial value configured for the user equipment by the base station side,
Figure BDA0002077873340000114
is a value generated by a specific pseudo-random sequence according to a time position (i.e., subframe (subframe) and slot (slot) number) where transmission occurs. Base station knows m in advance0And can be generated using the same pseudo-random sequence
Figure BDA0002077873340000115
Different feedback information corresponds to different cyclic shift configuration values mcs. Feedback information and cyclic shift configuration value mcsThe corresponding relationship of (a) is as follows (from TS 38.213).
TABLE 9.2.3-3 for representing the mapping relationship between 1 HARQ-ACK information bit and the sequence cyclic shift configuration value in PUCCH format0
Figure BDA0002077873340000116
Table 9.2.3-3, used for showing the mapping relationship between 2 HARQ-ACK information bits and the sequence cyclic shift configuration value in PUCCH format0
Figure BDA0002077873340000117
The user equipment sends the cyclic shift sequence after the cyclic shift of the base sequence, the base station side determines the cyclic shift configuration value of the cyclic shift sequence sent by the user to obtain mcsAnd recovering the feedback information of the user according to the mapping relation in the table.
The frequency domain bandwidth of the NR PUCCH format0 is fixed 1PRB, and in a V2x scenario, both ends of communication are moving, so that it is necessary to cope with worse channel conditions in such an application scenario; and due to the adoption of a distributed scheduling mode, the interference condition is more deteriorated. In addition, the NR PUCCH format0 uses different cyclic shift configuration values to identify NACK or ACK in the feedback information, and the measurement of the cyclic shift configuration values is sensitive to the effect of delay. Each user equipment in the NR Uu will adjust the transmission time forward according to the delay difference from the user equipment to the base station to ensure that the signal arriving at the base station is not affected by the transmission delay. However, unlike NR Uu, there is no central node and no target receiving end of communication in NR V2x is distributed in the whole area, so similar transmission time adjustment is not performed, and thus, distances between different user equipments may cause different delays, which may affect the measurement accuracy of the cyclic shift configuration value, thereby reducing the reliability of HARQ feedback. The reliability requirement of HARQ feedback is an order of magnitude higher than that of data, and reducing the reliability thereof seriously affects the efficiency of data transmission. Therefore, the present application proposes a new solution to solve the problem of the measurement accuracy of the cyclic shift configuration value affected by the transmission delay in NR V2x and the problem of the reliability of the HARQ feedback being reduced.
Fig. 1 is a flowchart illustrating a method for sending feedback information, according to an exemplary embodiment, where the method is applied to a first transmission device of two transmission devices, as shown in fig. 1, and includes:
step S11, configuring the base sequence to generate N cyclic shift sequences, wherein N is an integer greater than 1;
step S12, sending the N cyclic shift sequences to the second device.
The two transmission devices are two transmission devices which communicate through a direct link (sidelink), and are suitable for various direct communication application scenarios. The transmission device may be various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem with wireless communication functions applied in a direct communication application scenario, as well as various forms of User Equipment (UE), Mobile Station (MS), terminal device (terminal device), and so on.
In one possible implementation, step S11 includes:
step S11-1, determining a relative value or a relative value set of a cyclic shift configuration value corresponding to feedback information to be transmitted;
step S11-2, determining the N cyclic shift configuration values according to the relative value or relative value set;
and step S11-3, performing cyclic shift on the base sequence by using the N cyclic shift configuration values to obtain N cyclic shift sequences.
The relative value in the method may refer to a difference value of the cyclic shift configuration values, or a module value of the difference value of the cyclic shift configuration values and the length of the base sequence, or a function operation value of the difference value of the cyclic shift configuration values, where the function operation may be operations such as shifting, multiple, and the like.
The relative value set comprises N-1 relative values, and the N-1 relative values are relative values between two adjacent cyclic shift configuration values in the N cyclic shift configuration values which are arranged in sequence. The determining N cyclic shift configuration values from the set of relative values in step S11-2 includes: and respectively corresponding the relative values between every two adjacent cyclic shift configuration values in the N cyclic shift configuration values to N-1 relative values.
In the method, the same user equipment sends at least N cyclic shift sequences to the same target address, the signal delays of the N cyclic shift sequences can be considered to be basically equal, and the influence of the signal delay on cyclic shift detection can be eliminated by using the relative value relationship of cyclic shift, so that the reliability and the transmission efficiency of the feedback channel are effectively improved.
The feedback channel in the present method includes, but is not limited to, HARQ format.
Before step S11-1, the method further includes: setting a mapping relation set, wherein the mapping relation set comprises a mapping relation between the value of the feedback information and the relative value of the cyclic shift configuration value or the relative value set; the values of different feedback information correspond to the relative values or relative value sets of different cyclic shift configuration values. Determining the relative value or the relative value set of the cyclic shift configuration value corresponding to the feedback information to be transmitted in step S11-1 includes: and determining a relative value or a relative value set of the cyclic shift configuration value corresponding to the value of the feedback information to be transmitted according to the mapping relation set.
The method uses a base sequence of NR PUCCH format0, and the sequence after cyclic shift is shown as formula (1):
Figure BDA0002077873340000131
wherein the content of the first and second substances,
Figure BDA0002077873340000132
is a base sequence, M is the length of the base sequence,
Figure BDA0002077873340000133
is the cyclic shift value. The cyclic shift configuration value is mcs. The relative values of the cyclic shift configuration values in the following examples are exemplified by the difference of the cyclic shift configuration values.
The values of N include two cases:
in the first case: n is 2.
The application mode is as follows: the cyclic shift configuration values include a first cyclic shift configuration value and a second cyclic shift configuration value, and the difference value of the cyclic shift configuration values is the difference value of the first cyclic shift configuration value and the second cyclic shift configuration value. The values of different feedback information correspond to different differences.
Specific example 1
A base sequence of NR PUCCH format0 is used, and the length L of the base sequence is 12. The value of N is set to 2.
The cyclically shifted sequence is shown in equation (1).
Wherein the content of the first and second substances,
Figure BDA0002077873340000141
for the base sequence, the cyclic shift value of sequence 1 is
Figure BDA0002077873340000142
Cyclic shift of sequence 2 into
Figure BDA0002077873340000143
First cycleThe ring shift configuration value is
Figure BDA0002077873340000144
The second cyclic shift configuration value is
Figure BDA0002077873340000145
The values of different feedback information correspond to different difference values
Figure BDA0002077873340000146
When the feedback bit length is 1 bit, the mapping relationship between the feedback information and the difference value of the cyclic shift configuration value is shown in table 1:
TABLE 1
Figure BDA0002077873340000147
When the feedback bit length is 2 bits, the mapping relationship between the feedback information and the difference value of the cyclic shift configuration value is shown in table 2:
TABLE 2
Figure BDA0002077873340000148
Specific example 2
Compared with the specific example one, when a longer sequence is used, more frequency domain resources are occupied, and the difference of the cyclic shift changes accordingly. In the second specific example, a sequence with a length L of 24 is used, and the frequency domain resource of 2 PRBs needs to be occupied. The base sequence of NR PUCCH format0 is used. Take the value of N as 2 for example.
When the feedback bit length is 1 bit, the mapping relationship between the feedback information and the difference value of the cyclic shift configuration value is shown in table 3:
TABLE 3
Figure BDA0002077873340000151
When the feedback bit length is 2 bits, the mapping relationship between the feedback information and the difference value of the cyclic shift configuration value is shown in table 4:
table 4:
Figure BDA0002077873340000152
in the mapping relationships shown in tables 1, 2, 3 and 4, under the same feedback bit length, the difference of the cyclic shift configuration value pair is an integer multiple of L/(2^ M) rounded down, where L is the length of the base sequence, M is the bit number of the feedback information, i.e., the difference of the cyclic shift configuration values is uniformly or non-uniformly distributed in the interval from 0 to L-1, and L is the length of the base sequence. The uniform distribution mode can increase the tolerance to detection errors and improve the robustness of the transmission method.
The above-mentioned mode of uniform distribution is a possible implementation mode in an application scenario, and a non-uniform distribution mode is adopted in different application scenarios. For example, when the values of the feedback information in table 1 are 0 and 1, the difference between the first cyclic shift configuration value and the second cyclic shift configuration value takes other different values. For example, in table 2, when the HARQ-ACK values are {0,0}, {0,1}, {1,1}, and {1,0}, respectively, the difference between the first cyclic shift allocation value and the second cyclic shift allocation value takes different values.
In the second case: n is greater than 2.
The application mode is as follows: the difference set includes N-1 cyclic shift configuration value differences corresponding to differences between two adjacent ones of the N cyclic shift configuration values arranged in sequence. The step S11-2 of determining N cyclic shift configuration values according to the difference set includes: and respectively corresponding the difference value between every two adjacent cyclic shift configuration values in the N cyclic shift configuration values to the difference value of the N-1 cyclic shift configuration values. As a possible implementation: the difference value between every two adjacent cyclic shift configuration values in the N cyclic shift configuration values arranged in sequence is the same.
Specific example III
A base sequence of NR PUCCH format0 is used, and the length L of the base sequence is 12. The value of N is 3.
When the feedback bit length is 1 bit, the mapping relationship between the feedback information and the difference between the cyclic shift configuration values is shown in table 5:
TABLE 5
Figure BDA0002077873340000161
When the feedback bit length is 2 bits, the mapping relationship between the feedback information and the difference between the cyclic shift configuration values is shown in table 6:
TABLE 6
Figure BDA0002077873340000162
Except for the case that the difference values of the adjacent cyclic shift configuration values corresponding to the same feedback information are set to be the same as shown in the above table 5 and table 6, in other cases, the difference values of each pair of cyclic shift configuration values in the difference values of the adjacent cyclic shift configuration values corresponding to the same feedback information are set to be different.
For example:
when the feedback bit length is 1 bit, the mapping relationship between the feedback information and the difference between the cyclic shift configuration values is shown in table 7:
TABLE 7
Figure BDA0002077873340000163
When the feedback bit length is 2 bits, the mapping relationship between the feedback information and the difference between the cyclic shift configuration values is shown in table 8:
TABLE 8
Figure BDA0002077873340000171
In step S12, the sending the N cyclic shifted sequences to the second device includes one of the following:
the first method is as follows: a segment of frequency domain resources on the same time domain resource is divided into N parts, each cyclic shift sequence occupies one part, and the segment of frequency domain resources are continuous or discontinuous.
Fig. 2 is a schematic diagram of time-frequency resources for transmitting cyclic shift sequences, and as shown in fig. 2, taking the value of N as 2 as an example, a segment of frequency domain resources at the same time domain position is divided into 2 parts, a first cyclic shift sequence occupies a first part of frequency domain resources, a second cyclic shift sequence occupies a second part of frequency domain resources, and the 2 frequency domain resources are continuously distributed in the frequency domain.
The second method comprises the following steps: a segment of time domain resources are divided into N parts, each cyclic shift sequence occupies one part, and the frequency domain resources occupied by each cyclic shift sequence are the same. The segment of time domain resources is contiguous or non-contiguous.
Fig. 3 is a schematic diagram of time-frequency resources for transmitting cyclic shift sequences, and as shown in fig. 3, taking the value of N as 2 as an example, a segment of time-domain resources is divided into 2 parts, each cyclic shift sequence occupies one part, a first cyclic shift sequence occupies a first part of time-domain resources, a second cyclic shift sequence occupies a second part of time-domain resources, and frequency-domain resources occupied by each cyclic shift sequence are the same. The 2 time domain resources are distributed continuously in the time domain.
The third method comprises the following steps: a segment of time domain resources are divided into N parts, each cyclic shift sequence occupies one part, and the frequency domain resources occupied by each cyclic shift sequence are different. The segment of time domain resources is contiguous or non-contiguous.
Fig. 4 is a schematic diagram of time-frequency resources for transmitting cyclic shift sequences, as shown in fig. 4, taking the value of N as 2 as an example, a segment of time-domain resources is divided into 2 parts, and each cyclic shift sequence occupies one part, that is, a first cyclic shift sequence occupies a first part of time-domain resources, a second cyclic shift sequence occupies a second part of time-domain resources, and frequency-domain resources occupied by each cyclic shift sequence are different. The 2 time domain resources are distributed continuously in the time domain.
In step S12, the method of transmitting N cyclic shift sequences is a method of repeating transmission, and includes one of the following methods:
the first method is as follows: and dividing a section of frequency domain resources on the same time domain resource into Y groups, wherein each group is divided into N parts, each cyclic shift sequence occupies one group, and each cyclic shift sequence occupies one part.
Fig. 5 is a schematic diagram of time-frequency resources for transmitting cyclic shift sequences, and as shown in fig. 5, taking the value of N as 2 as an example, 2 groups of frequency-domain resources are determined at the same time-domain position, where the 2 groups of frequency-domain resources are continuously distributed, and each group of frequency-domain resources is divided into 2 parts, each group corresponds to the same 2 cyclic shift sequences, and each cyclic shift sequence occupies one part. The order of setting the cyclically shifted sequences on the different sets of frequency domain resources is the same along the order of increasing or decreasing frequency, and is different in other implementations.
And secondly, respectively determining a section of frequency domain resources on the Y time domain resources, dividing each section of frequency domain resources into N parts, wherein each N cyclic shift sequence occupies a section of frequency domain resources, and each cyclic shift sequence occupies one part.
Fig. 6 is a schematic diagram of time-frequency resources for transmitting cyclic shift sequences, and as shown in fig. 6, taking the value of N as 2 as an example, a segment of frequency domain resources is determined in 2 time domain resources, each segment of frequency domain resources is divided into 2 parts, each 2 cyclic shift sequences occupy a segment of frequency domain resources, and each cyclic shift sequence occupies one part. The order of setting the cyclically shifted sequences on the different sets of frequency domain resources is the same along the order of increasing or decreasing frequency, and is different in other implementations.
In step S12, the method of transmitting N cyclic shift sequences is also the method of transmitting additional sequences, and includes: constructing T groups of additional sequences, wherein the number of cyclic shift sequences contained in each group of additional sequences is N, and the difference value of the cyclic shift configuration value of the ith cyclic shift sequence in each group of additional sequences is the same as that of the ith cyclic shift sequence in the N cyclic shift sequences; i is an integer greater than 0 and less than N; transmitting the N cyclic shifted sequences in step S12 includes: and transmitting the N cyclic shift sequences and the T groups of additional sequences.
Fig. 7 is a diagram of time-frequency resources for transmitting cyclically shifted sequences. As shown in fig. 7, the value of N is 2, and on the basis of the method, that is, on the basis of constructing the sequence 1 and the sequence 2, a group of sequences is further constructed, where the group of sequences includes 2 cyclic shift sequences, that is, the sequence 3 and the sequence 4, where the frequency domain resources of the sequence 3 and the sequence 1 are the same, and the frequency domain resources of the sequence 4 and the sequence 2 are the same. The difference between the cyclic shift configuration value of sequence 3 and the cyclic shift configuration value of sequence 1 is equal to the difference between the cyclic shift configuration value of sequence 4 and the cyclic shift configuration value of sequence 2. Thus, the difference between the cyclic shift configuration values of sequence 3 and sequence 4 is equal to the difference between the cyclic shift configuration values of sequence 1 and sequence 2.
Fig. 8 is a flowchart illustrating a method for receiving feedback information according to an exemplary embodiment, where, as shown in fig. 8, the method is applied to a second transmission device of two transmission devices, and includes:
step S81, receiving N cyclic shift sequences sent by the first device; wherein N is an integer greater than 1;
step S82, determining N cyclic shift configuration values of the N cyclic shift sequences;
and step S83, determining feedback information returned by the first device according to the N cyclic shift configuration values.
Wherein the content of the first and second substances,
before step S81, the method further includes: and setting relative values or relative value sets of the cyclic shift configuration values corresponding to different feedback information. Step S82 includes: and determining a relative value or a relative value set of N cyclic shift configuration values of the N cyclic shift sequences, and determining feedback information returned by the first device according to the relative value or the relative value set.
The relative value in the method refers to a difference value of the cyclic shift configuration values, or a module value of the difference value of the cyclic shift configuration values and the length of the base sequence, or a function operation value of the difference value of the cyclic shift configuration values, and the function operation includes, but is not limited to, operations such as shifting, multiple and the like.
Fig. 9 is a flowchart illustrating a method for sending feedback information according to an exemplary embodiment, where as shown in fig. 9, the method is applied to a first transmission device of two transmission devices, and includes:
step S91, determining a base sequence corresponding to the feedback information to be transmitted;
and step S92, sending the base sequence corresponding to the feedback information to a second transmission device.
Before step S91, the method further includes: and setting a mapping relation between the values of the feedback information and the base sequences, wherein different values of the feedback information correspond to different base sequences. In step S91, determining the base sequence corresponding to the feedback information to be transmitted includes: and inquiring a base sequence corresponding to the value of the feedback information to be transmitted in the mapping relation.
For example: when the feedback bit length is 1, the corresponding sequence is sequence 1 when the feedback information has a value of 0, and the corresponding sequence is sequence 2 when the feedback information has a value of 1. When the feedback bit length is 2 and the value of the feedback information is {0,0}, the corresponding motif sequence is sequence 3; when the value of the feedback information is {0,1}, the corresponding motif sequence is sequence 4; when the value of the feedback information is {1,0}, the corresponding motif sequence is sequence 5; when the value of the feedback information is {1,1}, the corresponding motif sequence is sequence 6.
In one possible implementation, the method for sending feedback information includes: determining a cyclic shift sequence corresponding to feedback information to be transmitted; and sending the cyclic shift sequence corresponding to the feedback information to a second transmission device. Wherein, before the method, the method further comprises: and setting a mapping relation between the values of the feedback information and the cyclic shift sequences, wherein different values of the feedback information correspond to different cyclic shift sequences. Determining a cyclic shift sequence corresponding to feedback information to be transmitted includes: and inquiring a cyclic shift sequence corresponding to the value of the feedback information to be transmitted in the mapping relation.
Fig. 10 is a flowchart illustrating a method for receiving feedback information according to an exemplary embodiment, where as shown in fig. 10, the method is applied to a second transmission device of two transmission devices, and includes:
step S101, receiving a base sequence sent by first equipment;
and step S102, determining feedback information returned by the first equipment according to the base sequence.
Before step S101, the method further includes: setting a mapping relation between the feedback information and the base sequence, wherein values of different feedback information correspond to different base sequences; in step S102, determining feedback information returned by the first device according to the base sequence includes: and inquiring the value of the feedback information corresponding to the base sequence in the mapping relation.
In one possible implementation, the method for receiving feedback information includes: receiving a cyclic shift sequence sent by a first device; and determining feedback information returned by the first equipment according to the cyclic shift sequence. Wherein, before the method, the method further comprises: and setting a mapping relation between the values of the feedback information and the cyclic shift sequences, wherein different values of the feedback information correspond to different cyclic shift sequences. Determining feedback information returned by the first device according to the cyclic shift sequence comprises: and inquiring a cyclic shift sequence corresponding to the value of the feedback information to be transmitted in the mapping relation.
Corresponding to the embodiment of the application function implementation method, the disclosure further provides an embodiment of the transmission device.
Fig. 11 is a block diagram of an apparatus for sending feedback information according to an exemplary embodiment, which is applied to a second transmission device of two transmission devices, and as shown in fig. 11, includes:
a generating module 111, configured to configure a base sequence and generate N cyclic shift sequences, where N is an integer greater than 1;
a sending module 112, configured to send the N cyclic shifted sequences to the second device.
Wherein the content of the first and second substances,
the generation module 111 includes:
the first determining unit is used for determining a relative value or a relative value set of cyclic shift configuration values corresponding to the feedback information to be transmitted;
a second determining unit, configured to determine the N cyclic shift configuration values according to the relative value or the relative value set;
and the cyclic shift unit is used for performing cyclic shift on the base sequence by using the N cyclic shift configuration values to obtain N cyclic shift sequences.
The relative value set comprises N-1 relative values, and the N-1 relative values are relative values between two adjacent cyclic shift configuration values in the N cyclic shift configuration values which are arranged in sequence. The second determining unit is further configured to determine N cyclic shift configuration values from the set of relative values using the following method: and enabling relative values between every two adjacent cyclic shift configuration values in the N cyclic shift configuration values to respectively correspond to the N-1 relative values.
And when N is 2, the relative value of the cyclic shift configuration value is integer multiple of the lower integer of L/(2^ M), wherein L is the length of the base sequence, and M is the bit number of the feedback information. And when N is larger than 2, the relative values between every two adjacent cyclic shift configuration values in the N cyclic shift configuration values arranged in sequence are the same.
The following three modes are used in the device:
the first method is as follows:
a sending module 112, configured to send the N cyclic shifted sequences to the second device using one of the following manners:
dividing a segment of frequency domain resources on the same frequency domain resource into N parts, wherein each cyclic shift sequence occupies one part;
dividing a section of frequency domain resources into N parts, wherein each cyclic shift sequence occupies one part, and the frequency domain resources occupied by each cyclic shift sequence are the same;
a segment of time domain resources are divided into N parts, each cyclic shift sequence occupies one part, and the frequency domain resources occupied by each cyclic shift sequence are different.
The second method comprises the following steps:
a transmitting module 112, configured to repeatedly transmit the N cyclic shift sequences; repeatedly transmitting the N cyclically shifted sequences using one of the following:
dividing a section of frequency domain resources on the same time domain resource into Y groups, wherein each group is divided into N parts, each N cyclic shift sequences occupies one group, and each cyclic shift sequence occupies one part;
and respectively determining a section of frequency domain resources on the Y time domain resources, dividing each section of frequency domain resources into N parts, wherein each N cyclic shift sequence occupies a section of frequency domain resources, and each cyclic shift sequence occupies one part.
The third method comprises the following steps:
the transmitting device further comprises a sequence construction module. The sequence construction module is used for constructing T groups of additional sequences, the number of cyclic shift sequences contained in each group of additional sequences is N, and the relative values of cyclic shift configuration values of the ith cyclic shift sequence in each group of additional sequences and the ith cyclic shift sequence in the N cyclic shift sequences are the same; i is an integer greater than 0 and less than N;
the sending module 112 is further configured to send the T groups of additional sequences.
The sending device further comprises a setting module, wherein the setting module is used for setting a mapping relation set, and the mapping relation set comprises a mapping relation between the value of the feedback information and the relative value of the cyclic shift configuration value or the relative value set; the values of different feedback information correspond to the relative values or relative value sets of different cyclic shift configuration values. The first determining unit is further configured to determine a relative value or a set of relative values of cyclic shift configuration values corresponding to the feedback information to be transmitted, using the following method: and determining a relative value or a relative value set of the cyclic shift configuration value corresponding to the value of the feedback information to be transmitted according to the mapping relation set.
Correspondingly, this embodiment also discloses a sending apparatus of feedback information, which is applied to a first transmission device of two transmission devices, and includes:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
configuring a base sequence to generate N cyclic shift sequences, wherein N is an integer greater than 1;
and sending the N cyclic shift sequences to a second device.
Fig. 12 is a block diagram of a feedback information receiving apparatus according to an exemplary embodiment, which is applied to a second transmission device of two transmission devices, and as shown in fig. 12, includes:
a receiving module 121, configured to receive N cyclic shift sequences sent by a first device; wherein N is an integer greater than 1;
a first determining module 122, configured to determine a cyclic shift configuration value of each cyclic shift sequence;
a second determining module 123, configured to determine, according to the N cyclic shift configuration values, feedback information returned by the first device.
Wherein the content of the first and second substances,
the receiving device further comprises a setting module, and the setting module is used for setting relative values or relative value sets of the cyclic shift configuration values corresponding to different feedback information. The second determining module 123 is further configured to determine feedback information returned by the first device according to the N cyclic shift configuration values using the following method: determining a relative value or a relative value set of N cyclic shift configuration values of the N cyclic shift sequences, and determining feedback information returned by the first device according to the relative value or the relative value set.
Correspondingly, this embodiment also discloses a receiving apparatus of feedback information, which is applied to a second transmission device of two transmission devices, and includes:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
receiving N cyclic shift sequences sent by first equipment; wherein N is an integer greater than 1;
determining N cyclic shift configuration values for the N cyclic shift sequences;
and determining feedback information returned by the first equipment according to the N cyclic shift configuration values.
Fig. 13 is a block diagram of an apparatus for sending feedback information according to an exemplary embodiment, which is applied to a first transmission device of two transmission devices, and as shown in fig. 13, includes:
a determining module 131, configured to determine a base sequence corresponding to the feedback information to be transmitted;
a sending module 132, configured to send the base sequence corresponding to the feedback information to a second transmission device.
The sending device 132 further includes a setting module, where the setting module is configured to set a mapping relationship between values of the feedback information and the base sequence, and values of different feedback information correspond to different base sequences. The determining module 131 is further configured to select different base sequences according to different feedback information using the following method: and inquiring a base sequence corresponding to the value of the feedback information to be transmitted in the mapping relation.
Correspondingly, this embodiment also discloses a sending apparatus of feedback information, which is applied to a first transmission device of two transmission devices, and includes:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
determining a base sequence corresponding to feedback information to be transmitted;
and sending the base sequence corresponding to the feedback information to a second transmission device.
Fig. 14 is a block diagram of a receiving apparatus for feedback information according to an exemplary embodiment, which is applied to a second transmission device of two transmission devices, and as shown in fig. 14, includes:
a receiving module 141, configured to receive a base sequence sent by a first device;
a determining module 142, configured to determine, according to the base sequence, feedback information returned by the first device.
The receiving device also comprises a setting module, wherein the setting module is used for setting the mapping relation between the feedback information and the base sequence, and values of different feedback information correspond to different base sequences. The determining module 142 is further configured to determine feedback information returned by the first device according to the base sequence by using the following method: and inquiring the value of the feedback information corresponding to the base sequence in the mapping relation.
Correspondingly, this embodiment also discloses a sending apparatus of feedback information, which is applied to a second transmission device of two transmission devices, and includes:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
receiving a base sequence sent by first equipment;
and determining feedback information returned by the first equipment according to the base sequence.
Also provided in the present disclosure is a non-transitory computer-readable storage medium having instructions that, when executed by a processor of a mobile terminal, enable the mobile terminal to perform the above-described transmission method, or reception method.
Fig. 15 is a block diagram illustrating an apparatus 1500 for transmitting feedback information in accordance with an example embodiment. For example, the apparatus 1500 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 15, apparatus 1500 may include one or more of the following components: a processing component 1502, a memory 1504, a power component 1506, a multimedia component 15015, an audio component 1510, an input/output (I/O) interface 1512, a sensor component 1514, and a communications component 1516.
The processing component 1502 generally controls overall operation of the device 1500, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 1502 may include one or more processors 1520 executing instructions to perform all or a portion of the steps of the methods described above. Further, processing component 1502 may include one or more modules that facilitate interaction between processing component 1502 and other components. For example, the processing component 1502 may include a multimedia module to facilitate interaction between the multimedia component 15015 and the processing component 1502.
The memory 1504 is configured to store various types of data to support operation at the device 1500. Examples of such data include instructions for any application or method operating on the device 1500, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 1504 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power component 1506 provides power to the various components of the device 1500. The power components 1506 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 1500.
The multimedia component 15015 includes a screen between the device 1500 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 15015 includes a front-facing camera and/or a rear-facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 1500 is in an operational mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 1510 is configured to output and/or input audio signals. For example, the audio component 1510 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 1500 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 1504 or transmitted via the communication component 1516. In some embodiments, audio component 1510 also includes a speaker for outputting audio signals.
The I/O interface 1512 provides an interface between the processing component 1502 and peripheral interface modules, which can be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 1514 includes one or more sensors for providing status assessment of various aspects of the apparatus 1500. For example, the sensor assembly 1514 can detect an open/closed state of the device 1500, relative positioning of components, such as a display and keypad of the apparatus 1500, the sensor assembly 1514 can also detect a change in position of the apparatus 1500 or a component of the apparatus 1500, the presence or absence of user contact with the apparatus 1500, orientation or acceleration/deceleration of the apparatus 1500, and a change in temperature of the apparatus 1500. The sensor assembly 1514 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 1514 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1514 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 1516 is configured to facilitate wired or wireless communication between the apparatus 1500 and other devices. The apparatus 1500 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1516 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1516 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 1500 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 1504 comprising instructions, executable by the processor 1520 of the apparatus 1500 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Industrial applicability
The technical scheme provided by the embodiment of the disclosure can eliminate the influence of signal delay on cyclic shift detection when two transmission terminals transmit data, and effectively improve the reliability and transmission efficiency of a feedback channel.

Claims (27)

1. A method for sending feedback information, which is applied to a first transmission device of two transmission devices, includes:
configuring a base sequence to generate N cyclic shift sequences, wherein N is an integer greater than 1;
transmitting the N cyclic shift sequences to a second device;
the configuring the base sequence to generate N cyclic shift sequences includes:
determining a relative value or a relative value set of a cyclic shift configuration value corresponding to feedback information to be transmitted;
determining the N cyclic shift configuration values from the relative value or set of relative values;
and performing cyclic shift on the base sequence by using the N cyclic shift configuration values to obtain N cyclic shift sequences.
2. The transmission method of claim 1,
the relative value set comprises N-1 relative values, wherein the N-1 relative values are relative values between two adjacent cyclic shift configuration values in N cyclic shift configuration values which are arranged in sequence;
said determining N cyclic shift configuration values from the set of relative values comprises: and enabling relative values between every two adjacent cyclic shift configuration values in the N cyclic shift configuration values to respectively correspond to the N-1 relative values.
3. The transmission method according to claim 1 or 2,
and when the N is 2, the relative value of the N cyclic shift configuration values is an integral multiple of the lower integer of L/(2^ M), wherein L is the length of the base sequence, and M is the bit number of the feedback information.
4. The transmission method according to claim 1 or 2,
and when N is larger than 2, the relative values between every two adjacent cyclic shift configuration values in the N cyclic shift configuration values arranged in sequence are the same.
5. The transmission method of claim 1,
the sending the N cyclic shifted sequences to the second device comprises one of:
dividing a segment of frequency domain resources on the same time domain resource into N parts, wherein each cyclic shift sequence occupies one part;
dividing a segment of time domain resources into N parts, wherein each cyclic shift sequence occupies one part, and the frequency domain resources occupied by each cyclic shift sequence are the same;
a segment of time domain resources are divided into N parts, each cyclic shift sequence occupies one part, and the frequency domain resources occupied by each cyclic shift sequence are different.
6. The transmission method of claim 1,
the sending the N cyclically shifted sequences to the second device comprises: repeatedly transmitting the N cyclic shift sequences;
the repeatedly transmitting the N cyclic shifted sequences comprises one of the following ways:
dividing a section of frequency domain resources on the same frequency domain resource into Y groups, wherein each group is divided into N parts, each N cyclic shift sequences occupies one group, and each cyclic shift sequence occupies one part;
and respectively determining a section of frequency domain resources on the Y frequency domain resources, dividing each section of frequency domain resources into N parts, wherein each N cyclic shift sequence occupies a section of frequency domain resources, and each cyclic shift sequence occupies one part.
7. The transmission method of claim 1,
the method further comprises the following steps: constructing T groups of additional sequences, wherein the number of cyclic shift sequences contained in each group of additional sequences is N, and the relative values of cyclic shift configuration values of the ith cyclic shift sequence in each group of additional sequences and the ith cyclic shift sequence in the N cyclic shift sequences are the same; i is an integer greater than 0 and less than N;
the transmitting the N cyclic shifted sequences comprises:
and transmitting N cyclic shift sequences and the T groups of additional sequences.
8. The transmission method of claim 1,
the method further comprises the following steps: setting a mapping relation set, wherein the mapping relation set comprises a mapping relation between a value of feedback information and a relative value of a cyclic shift configuration value or a relative value set; the values of different feedback information correspond to the relative values or relative value sets of different cyclic shift configuration values;
the determining a relative value or a relative value set of a cyclic shift configuration value corresponding to feedback information to be transmitted includes: and determining a relative value or a relative value set of the cyclic shift configuration value corresponding to the value of the feedback information to be transmitted according to the mapping relation set.
9. A method for receiving a feedback channel, applied to a second transmission device of two transmission devices, comprising:
receiving N cyclic shift sequences sent by first equipment; wherein N is an integer greater than 1;
determining N cyclic shift configuration values for the N cyclic shift sequences;
determining feedback information returned by the first equipment according to the N cyclic shift configuration values;
before the receiving the N cyclic shift sequences sent by the first device, the method further includes: setting relative values or relative value sets of cyclic shift configuration values corresponding to different feedback information;
the determining feedback information returned by the first device according to the N cyclic shift configuration values includes:
determining a relative value or a set of relative values of N cyclic shift configuration values of the N cyclic shift sequences;
and determining feedback information returned by the first equipment according to the relative value or the relative value set.
10. A method for sending feedback information, which is applied to a first transmission device of two transmission devices, includes:
determining a base sequence corresponding to feedback information to be transmitted;
sending the base sequence corresponding to the feedback information to second transmission equipment;
before determining the base sequence corresponding to the feedback information to be transmitted, the method further includes: setting a mapping relation between values of the feedback information and the base sequence, wherein different values of the feedback information correspond to different base sequences;
the determining of the base sequence corresponding to the feedback information to be transmitted includes: and inquiring a base sequence corresponding to the value of the feedback information to be transmitted in the mapping relation.
11. A method for receiving feedback information, applied to a second transmission device of two transmission devices, comprising:
receiving a base sequence sent by first equipment;
determining feedback information returned by the first equipment according to the base sequence;
before the receiving the base sequence sent by the first device, the method further includes: setting a mapping relation between the feedback information and the base sequence, wherein values of different feedback information correspond to different base sequences;
the determining feedback information returned by the first device according to the base sequence includes: and inquiring the value of the feedback information corresponding to the base sequence in the mapping relation.
12. A device for sending feedback information, applied to a first transmission device of two transmission devices, comprising:
a generating module, configured to configure a base sequence and generate N cyclic shift sequences, where N is an integer greater than 1;
a sending module, configured to send the N cyclic shift sequences to a second device;
the generation module comprises:
the first determining unit is used for determining a relative value or a relative value set of cyclic shift configuration values corresponding to the feedback information to be transmitted;
a second determining unit, configured to determine the N cyclic shift configuration values according to the relative value or the relative value set;
and the cyclic shift unit is used for performing cyclic shift on the base sequence by using the N cyclic shift configuration values to obtain N cyclic shift sequences.
13. The transmission apparatus according to claim 12,
the relative value set comprises N-1 relative values, wherein the N-1 relative values are relative values between two adjacent cyclic shift configuration values in N cyclic shift configuration values which are arranged in sequence;
the second determining unit is further configured to determine N cyclic shift configuration values from the set of relative values using the following method: and enabling relative values between every two adjacent cyclic shift configuration values in the N cyclic shift configuration values to respectively correspond to the N-1 relative values.
14. The transmission apparatus according to claim 12 or 13,
and when the N is 2, the relative value of the cyclic shift configuration value is an integral multiple of the downward integer of L/(2^ M), wherein L is the length of the base sequence, and M is the bit number of the feedback information.
15. The transmission apparatus according to claim 12 or 13,
and when N is larger than 2, the relative values between every two adjacent cyclic shift configuration values in the N cyclic shift configuration values arranged in sequence are the same.
16. The transmission apparatus according to claim 12,
the sending module is further configured to send the N cyclic shifted sequences to the second device using one of the following manners:
dividing a segment of frequency domain resources on the same frequency domain resource into N parts, wherein each cyclic shift sequence occupies one part;
dividing a section of frequency domain resources into N parts, wherein each cyclic shift sequence occupies one part, and the frequency domain resources occupied by each cyclic shift sequence are the same;
a segment of time domain resources are divided into N parts, each cyclic shift sequence occupies one part, and the frequency domain resources occupied by each cyclic shift sequence are different.
17. The transmission apparatus according to claim 12,
the sending module is further configured to repeatedly send the N cyclic shift sequences; repeatedly transmitting the N cyclically shifted sequences using one of the following:
dividing a section of frequency domain resources on the same time domain resource into Y groups, wherein each group is divided into N parts, each N cyclic shift sequences occupies one group, and each cyclic shift sequence occupies one part;
and respectively determining a section of frequency domain resources on the Y time domain resources, dividing each section of frequency domain resources into N parts, wherein each N cyclic shift sequence occupies a section of frequency domain resources, and each cyclic shift sequence occupies one part.
18. The transmission apparatus according to claim 12,
the transmission apparatus further includes:
the sequence construction module is used for constructing T groups of additional sequences, the number of cyclic shift sequences contained in each group of additional sequences is N, and the relative values of cyclic shift configuration values of the ith cyclic shift sequence in each group of additional sequences and the ith cyclic shift sequence in the N cyclic shift sequences are the same; i is an integer greater than 0 and less than N;
the sending module is further configured to send the T group of additional sequences.
19. The transmission apparatus according to claim 12,
the transmission apparatus further includes:
the setting module is used for setting a mapping relation set, wherein the mapping relation set comprises a mapping relation between a value of the feedback information and a relative value or a relative value set of a cyclic shift configuration value; the values of different feedback information correspond to the relative values or relative value sets of different cyclic shift configuration values;
the first determining unit is further configured to determine a relative value or a set of relative values of cyclic shift configuration values corresponding to feedback information to be transmitted by using the following method: and determining a relative value or a relative value set of the cyclic shift configuration value corresponding to the value of the feedback information to be transmitted according to the mapping relation set.
20. An apparatus for sending feedback information, applied to a first transmission device of two transmission devices, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
configuring a base sequence to generate N cyclic shift sequences, wherein N is an integer greater than 1;
transmitting the N cyclic shift sequences to a second device;
the configuring the base sequence to generate N cyclic shift sequences includes:
determining a relative value or a relative value set of a cyclic shift configuration value corresponding to feedback information to be transmitted;
determining the N cyclic shift configuration values from the relative value or set of relative values;
and performing cyclic shift on the base sequence by using the N cyclic shift configuration values to obtain N cyclic shift sequences.
21. An apparatus for receiving feedback information, applied to a second transmission device of two transmission devices, comprising:
a receiving module, configured to receive N cyclic shift sequences sent by a first device; wherein N is an integer greater than 1;
a first determining module, configured to determine a cyclic shift configuration value of each cyclic shift sequence;
a second determining module, configured to determine, according to the N cyclic shift configuration values, feedback information returned by the first device;
the setting module is used for setting relative values or relative value sets of cyclic shift configuration values corresponding to different feedback information;
the second determining module is further configured to determine feedback information returned by the first device according to the N cyclic shift configuration values by using the following method: determining a relative value or a relative value set of N cyclic shift configuration values of the N cyclic shift sequences, and determining feedback information returned by the first device according to the relative value or the relative value set.
22. A receiving apparatus of a feedback channel, applied to a second transmission device of two transmission devices, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
receiving N cyclic shift sequences sent by first equipment; wherein N is an integer greater than 1;
determining N cyclic shift configuration values for the N cyclic shift sequences;
determining feedback information returned by the first equipment according to the N cyclic shift configuration values;
prior to the receiving the N cyclically shifted sequences transmitted by the first device, the processor is further configured to: setting relative values or relative value sets of cyclic shift configuration values corresponding to different feedback information;
the determining feedback information returned by the first device according to the N cyclic shift configuration values includes:
determining a relative value or a set of relative values of N cyclic shift configuration values of the N cyclic shift sequences; and determining feedback information returned by the first equipment according to the relative value or the relative value set.
23. A transmission apparatus of a feedback channel, applied to a first transmission device of two transmission devices, comprising:
the determining module is used for determining a base sequence corresponding to the feedback information to be transmitted;
the sending module is used for sending the base sequence corresponding to the feedback information to second transmission equipment;
the setting module is used for setting the mapping relation between the values of the feedback information and the base sequence, and different values of the feedback information correspond to different base sequences;
the determining module is further configured to select different base sequences according to different feedback information using the following method: and inquiring a base sequence corresponding to the value of the feedback information to be transmitted in the mapping relation.
24. A transmission apparatus of a feedback channel, applied to a first transmission device of two transmission devices, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
determining a base sequence corresponding to feedback information to be transmitted;
sending the base sequence corresponding to the feedback information to second transmission equipment;
before determining a base sequence corresponding to feedback information to be transmitted, the processor is further configured to: setting a mapping relation between values of the feedback information and the base sequence, wherein different values of the feedback information correspond to different base sequences;
the determining of the base sequence corresponding to the feedback information to be transmitted includes: and inquiring a base sequence corresponding to the value of the feedback information to be transmitted in the mapping relation.
25. A receiving apparatus of a feedback channel, applied to a second transmission device of two transmission devices, comprising:
the receiving module is used for receiving the base sequence sent by the first equipment;
the determining module is used for determining feedback information returned by the first equipment according to the base sequence;
the setting module is used for setting the mapping relation between the feedback information and the base sequence, and the values of different feedback information correspond to different base sequences;
the determining module is further configured to determine feedback information returned by the first device according to the base sequence by using the following method: and inquiring the value of the feedback information corresponding to the base sequence in the mapping relation.
26. A receiving apparatus of a feedback channel, applied to a second transmission device of two transmission devices, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
receiving a base sequence sent by first equipment;
determining feedback information returned by the first equipment according to the base sequence;
prior to the receiving the base sequence transmitted by the first device, the processor is further configured to: setting a mapping relation between the feedback information and the base sequence, wherein values of different feedback information correspond to different base sequences;
the determining feedback information returned by the first device according to the base sequence includes: and inquiring the value of the feedback information corresponding to the base sequence in the mapping relation.
27. A non-transitory computer readable storage medium, instructions in which, when executed by a processor of a mobile terminal, enable the mobile terminal to perform the transmission method of claims 1 to 8, or the reception method of claim 9, or the transmission method of claims 10 to 11, or the reception method of claim 11.
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