CN109995484B - Data transmission and receiving method, terminal and base station - Google Patents

Data transmission and receiving method, terminal and base station Download PDF

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CN109995484B
CN109995484B CN201711474010.9A CN201711474010A CN109995484B CN 109995484 B CN109995484 B CN 109995484B CN 201711474010 A CN201711474010 A CN 201711474010A CN 109995484 B CN109995484 B CN 109995484B
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information
pilot
symbol
pucch
carrying
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CN109995484A (en
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高雪娟
林祥利
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/0012—Hopping in multicarrier systems

Abstract

The invention provides a data transmission and receiving method, a terminal and a base station, relates to the field of communication, and solves the problem that no complete scheme exists for simultaneously transmitting HARQ-ACK feedback information and SR in the prior art. The method comprises the following steps: when the time domain transmission positions of the SR information and the HARQ-ACK information are overlapped, the SR information is carried on a pilot frequency symbol of the PUCCH; and transmitting the PUCCH carrying the SR information. The scheme of the invention realizes the simultaneous transmission of the SR and the HARQ-ACK, and can distinguish whether the SR exists when the HARQ-ACK adopts PUCCH format 1 for transmission, thereby improving the network performance.

Description

Data transmission and receiving method, terminal and base station
Technical Field
The present invention relates to the field of communications, and in particular, to a data transmission method, a data reception method, a terminal, and a base station.
Background
With the development of mobile communication service demand, various organizations such as ITU (International telecommunications Union) have started to research New wireless communication systems (i.e., 5G NR, 5 Generation New RAT) for future mobile communication systems. In the 5G NR, when uplink control channel feedback HARQ-ACK (Hybrid Automatic Repeat reQuest acknowledgement) information and SR (Scheduling reQuest) transmission occur simultaneously, there is no complete scheme for how to transmit the HARQ-ACK feedback information and SR simultaneously.
In the current 5G NR system, when HARQ-ACK is transmitted on PUCCH (Physical Uplink Control CHannel) format 0 of 5G NR, CAZAC (constant Amplitude Zero Auto-correlation) is adopted for transmission, and different feedback information states are represented by different cyclic shifts, as shown in table 1 and table 2, the mapping from HARQ-ACK state to cyclic shift is represented by an initial cyclic shift CinitalAnd the mapping relation of table 1 or table 2. When the HARQ-ACK and the SR are multiplexed and transmitted on the PUCCH format 0, when the SR is negative (negative), the HARQ-ACK is transmitted on the HARQ-ACK Resource in the manner described above (table 1 and table 2), when the SR is positive (positive), the HARQ-ACK is transmitted on other cyclic shifts within the same PRB (Physical Resource Block) Resource, and when the SR is positive, the mapping from the HARQ-ACK state to the cyclic shift is performed by the initial cyclic shift CinitalAnd the mapping relationship of table 3 or table 4.
HARQ-ACK NACK ACK
Cyclic shift Cinital (Cinital+6)mod12
TABLE 1
Figure BDA0001532446640000021
TABLE 2
HARQ-ACK NACK ACK
Cyclic shift (CSintitial+3)mod12 (CSintitial+9)mod12
TABLE 3
Figure BDA0001532446640000022
TABLE 4
In 5G NR, PUCCH transmission in format 0 uses different cyclic shifts to represent different control information states, while PUCCH format 1 uses HARQ-ACK feedback information modulated into one symbol and then transmitted in sequence spreading, and the cyclic shifts are used for multiplexing of multiple users. When the HARQ-ACK is transmitted using PUCCH format 1 and the SR is configured to be transmitted using PUCCH format 0, if there is an overlap between transmission timings of the HARQ-ACK and the positive SR, whether the positive SR exists cannot be distinguished by using different cyclic shift sets by a method similar to the PUCCH format 0, and the presence of the positive SR cannot be implicitly expressed by transmitting the HARQ-ACK on a resource corresponding to the SR since the PUCCH formats used by the HARQ-ACK and the SR are different.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a data transmission and reception method, a terminal and a base station, which solve the problem that in the prior art, no complete scheme exists for simultaneously transmitting HARQ-ACK feedback information and an SR.
To solve the foregoing technical problem, an embodiment of the present invention provides a data transmission method, including:
when the time domain transmission position of Scheduling Request (SR) information and hybrid automatic repeat request (HARQ-ACK) information is overlapped, carrying the SR information on a pilot frequency symbol of a Physical Uplink Control Channel (PUCCH);
and transmitting the PUCCH carrying the SR information.
Optionally, the step of carrying the SR information on a pilot symbol of a physical uplink control channel PUCCH includes:
and carrying the SR information on at least one pilot symbol in the pilot frequency of the PUCCH used for transmitting the HARQ-ACK.
Optionally, the step of carrying the SR information on a pilot symbol of a physical uplink control channel PUCCH includes:
when the PUCCH does not open frequency hopping, carrying the SR information on at least one pilot frequency symbol in the pilot frequency of the PUCCH used for transmitting the HARQ-ACK;
when the PUCCH is on frequency hopping, the SR information is carried on at least one pilot symbol in each frequency hopping part of the PUCCH for transmitting HARQ-ACK.
Optionally, the step of carrying the SR information on a pilot symbol of a physical uplink control channel PUCCH includes:
when the SR is positive, modulating the SR information into a modulation symbol, and multiplying the modulation symbol by a pilot frequency sequence on the pilot frequency symbol to obtain the pilot frequency symbol carrying the SR information;
and when the SR is negative, modulating the SR information into a modulation symbol, and multiplying the modulation symbol by the pilot sequence on the pilot symbol to obtain the pilot symbol carrying the SR information, or not transmitting the SR information.
Optionally, when SR is positive, the modulation symbol is-1;
when the SR is negative, the modulation symbol is 1.
Optionally, the step of carrying the SR information on a pilot symbol of a physical uplink control channel PUCCH includes:
determining a pilot symbol for carrying SR information in a pilot frequency of a PUCCH according to predefined or preconfigured pilot symbol position information for carrying SR information;
carrying the SR information on the pilot symbols.
Optionally, the pilot symbol is a demodulation reference signal DMRS symbol.
To solve the above technical problem, an embodiment of the present invention further provides a terminal, including:
the bearing module is used for bearing the SR information on a pilot frequency symbol of a Physical Uplink Control Channel (PUCCH) when the time domain transmission positions of the Scheduling Request (SR) information and the hybrid automatic repeat request acknowledgement (HARQ-ACK) information are overlapped;
and the transmission module is used for transmitting the PUCCH carrying the SR information.
In order to solve the above technical problem, an embodiment of the present invention further provides a terminal, including a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor;
the processor is used for bearing the SR information on a pilot frequency symbol of a Physical Uplink Control Channel (PUCCH) when the time domain transmission positions of the Scheduling Request (SR) information and the hybrid automatic repeat request acknowledgement (HARQ-ACK) information are overlapped;
the transceiver is configured to transmit the PUCCH carrying the SR information.
Optionally, the processor is configured to carry the SR information on at least one pilot symbol in a pilot of a PUCCH used for transmitting HARQ-ACK.
Optionally, the processor is configured to, when the PUCCH does not turn on frequency hopping, carry the SR information on at least one pilot symbol in pilots of the PUCCH used for transmitting HARQ-ACK; when the PUCCH is on frequency hopping, the SR information is carried on at least one pilot symbol in each frequency hopping part of the PUCCH for transmitting HARQ-ACK.
Optionally, the processor is configured to modulate the SR information into a modulation symbol when SR is positive, and multiply the modulation symbol with the pilot sequence on the pilot symbol to obtain the pilot symbol carrying the SR information;
and when the SR is negative, modulating the SR information into a modulation symbol, and multiplying the modulation symbol by the pilot sequence on the pilot symbol to obtain the pilot symbol carrying the SR information, or not transmitting the SR information.
Optionally, when SR is positive, the modulation symbol is-1;
when the SR is negative, the modulation symbol is 1.
Optionally, the processor is configured to determine, according to predefined or preconfigured pilot symbol position information for carrying SR information, a pilot symbol for carrying the SR information in a pilot of the PUCCH; carrying the SR information on the pilot symbols.
Optionally, the pilot symbol is a demodulation reference signal DMRS symbol.
To solve the above technical problem, an embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored, the program being executed by a processor to perform the steps of the information transmission method according to any one of the above.
In order to solve the above technical problem, an embodiment of the present invention further provides a data receiving method, including:
receiving a Physical Uplink Control Channel (PUCCH) sent by a terminal, wherein a predefined or preconfigured pilot symbol of the PUCCH bears Scheduling Request (SR) information; the terminal transmits the SR information carried on the pilot symbols of the PUCCH when the SR information is overlapped with the time domain transmission position of hybrid automatic repeat request acknowledgement (HARQ-ACK) information.
To solve the above technical problem, an embodiment of the present invention further provides a base station, including:
a receiving module, configured to receive a Physical Uplink Control Channel (PUCCH) sent by a terminal, where a predefined or preconfigured pilot symbol of the PUCCH carries Scheduling Request (SR) information; the terminal transmits the SR information carried on the pilot symbols of the PUCCH when the SR information is overlapped with the time domain transmission position of hybrid automatic repeat request acknowledgement (HARQ-ACK) information.
In order to solve the above technical problem, an embodiment of the present invention further provides a base station, including a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor;
the transceiver is used for receiving a Physical Uplink Control Channel (PUCCH) sent by a terminal, and a predefined or preconfigured pilot symbol of the PUCCH carries Scheduling Request (SR) information; the terminal transmits the SR information carried on the pilot symbols of the PUCCH when the SR information is overlapped with the time domain transmission position of hybrid automatic repeat request acknowledgement (HARQ-ACK) information.
To solve the above technical problem, an embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored, which when executed by a processor implements the steps of the data receiving method as described above.
The technical scheme of the invention has the following beneficial effects:
according to the data transmission method, when the time domain transmission positions of the SR information and the HARQ-ACK information are overlapped, the SR information is carried on the pilot symbols of the PUCCH; and then transmitting the PUCCH carrying the SR information. Therefore, the SR and the HARQ-ACK can be transmitted simultaneously, and when the HARQ-ACK adopts PUCCH format 1 for transmission, whether the SR exists can be distinguished, and the network performance is improved.
Drawings
Fig. 1 is a flowchart of a data transmission method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of transmitting a positive SR in the data transmission method according to the embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a method for transmitting a negative SR in a data transmission method according to an embodiment of the present invention;
fig. 4a is a schematic diagram of a first frequency hopping part transmitting a positive SR when a PUCCH hops in the data transmission method according to the embodiment of the present invention;
fig. 4b is a schematic diagram of a second frequency hopping part transmitting a positive SR when a PUCCH hops in the data transmission method according to the embodiment of the present invention;
fig. 5a is a schematic diagram of a first frequency hopping part transmitting a negative SR when a PUCCH hops in the data transmission method according to the embodiment of the present invention;
fig. 5b is a schematic diagram illustrating that a second frequency hopping part transmits a negative SR when a PUCCH hops in the data transmission method according to the embodiment of the present invention;
fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 7 is another schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 8 is a flowchart of a data receiving method according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a base station according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
In some embodiments of the present invention, referring to fig. 1, a data transmission method is provided, including:
step 101, when the time domain transmission positions of Scheduling Request (SR) information and hybrid automatic repeat request acknowledgement (HARQ-ACK) information are overlapped, the SR information is loaded on a pilot symbol of a Physical Uplink Control Channel (PUCCH).
And 102, transmitting the PUCCH carrying the SR information.
The pilot symbol may be, for example, a DMRS (Demodulation Reference Signal) symbol, but is not limited thereto.
According to the data transmission method provided by the embodiment of the invention, when the time domain transmission positions of the SR information and the HARQ-ACK information are overlapped, the SR information is borne on the pilot symbols of the PUCCH for transmission, the SR and the HARQ-ACK are transmitted simultaneously, and when the HARQ-ACK adopts PUCCH format 1 for transmission, whether the SR exists can be distinguished, so that the network performance is improved.
Optionally, the step 101 includes:
and step 1011, carrying the SR information on at least one pilot symbol in the pilot of the PUCCH used for transmitting the HARQ-ACK.
Here, the pilots for carrying the SR information include at least one of pilots of a PUCCH for transmitting the HARQ-ACK.
At this time, when the time domain transmission positions of the SR information and the HARQ-ACK information are overlapped, the SR information is carried on at least one pilot frequency symbol in the pilot frequency of the PUCCH used for transmitting the HARQ-ACK, and multiplexing of simultaneous transmission of the SR and the HARQ-ACK is realized.
Alternatively, the step 101 includes:
step 10121, when the frequency hopping is not turned on for the PUCCH, carrying the SR information on at least one pilot symbol among pilots of the PUCCH for transmitting HARQ-ACK.
Here, when the PUCCH is not on-hopping, the pilots for carrying SR information include at least one of the pilots of the PUCCH for transmitting HARQ-ACK.
Step 10122, when the PUCCH is on hopping, carrying the SR information on at least one pilot symbol in each hopping part of the PUCCH for transmission of HARQ-ACK.
Here, when the PUCCH is on-hopped, the pilots for carrying SR information include at least one pilot in each hopping part of the PUCCH for transmitting HARQ-ACK.
At this time, when the SR information overlaps with the time domain transmission position of the HARQ-ACK information and when the PUCCH does not start frequency hopping, the SR information is carried on at least one pilot frequency symbol in the pilot frequency of the PUCCH used for transmitting the HARQ-ACK; when the PUCCH starts frequency hopping, the SR information is carried on at least one pilot frequency symbol in each frequency hopping part of the PUCCH used for transmitting the HARQ-ACK for transmission, and multiplexing of simultaneous transmission of the SR and the HARQ-ACK is realized.
Optionally, the step 101 includes:
step 1013, when the SR is positive, modulating the SR information into one modulation symbol, and multiplying the modulation symbol by the pilot sequence on the pilot symbol to obtain the pilot symbol carrying the SR information.
Here, when the SR needs to be transmitted, that is, when the SR is positive, the SR information is modulated into one modulation symbol (for example, -1), and the pilot sequence on the pilot symbol used for carrying the SR information is multiplied by the adjustment symbol to obtain the pilot symbol carrying the SR information, so that the SR information is modulated onto the pilot symbol of the PUCCH, so that the PUCCH carrying the SR information is transmitted, and multiplexing of simultaneous transmission of the SR and the HARQ-ACK is achieved.
Step 1014, when the SR is negative, modulating the SR information into a modulation symbol, and multiplying the modulation symbol by the pilot sequence on the pilot symbol to obtain the pilot symbol carrying the SR information, or not transmitting the SR information.
Here, when the SR does not need to be transmitted, that is, when the SR is negative, the SR information is modulated into one modulation symbol (e.g., 1), and the adjustment symbol is multiplied by a pilot sequence on the pilot symbol for carrying the SR information, so as to obtain the pilot symbol carrying the SR information. Therefore, the SR information is modulated on the pilot frequency symbol of the PUCCH, so that the PUCCH carrying the SR information can be transmitted, and multiplexing of simultaneous transmission of the SR and the HARQ-ACK is realized.
Or, only when the SR needs to be transmitted, that is, the SR is positive, the SR information is modulated into one modulation symbol (e.g., -1), and the adjustment symbol is multiplied by a pilot sequence on a pilot symbol used for carrying the SR information, that is, the SR information is carried on the pilot symbol of the PUCCH and transmitted only when the SR is positive, and the SR information is not transmitted when the SR is negative.
Further, when the SR is positive, the modulation symbol is-1; when the SR is negative, the modulation symbol is 1.
At this time, when the SR is positive, the positive SR is represented by modulation symbol-1, and the modulation symbol-1 is multiplied by a pilot sequence on a pilot symbol for carrying SR information; when the SR is negative, the negative SR is represented by modulation symbol 1, and the modulation symbol 1 is multiplied by a pilot sequence on a pilot symbol used to carry SR information (substantially this step does not perform additional processing). Or, the positive SR is represented by modulation symbol-1 only when the SR is positive, and the modulation symbol-1 is multiplied by a pilot sequence on a pilot symbol for carrying SR information, that is, the SR information is carried on the pilot symbol of the PUCCH and transmitted only when the SR is positive, and the SR information is not transmitted when the SR is negative.
Optionally, the step 101 includes:
step 1015, according to predefined or preconfigured pilot symbol position information for carrying SR information, determining a pilot symbol for carrying the SR information in a pilot of the PUCCH.
Step 1016, the SR information is carried on the pilot symbols.
At this time, the positions of the pilot symbols for carrying SR information are predefined or preconfigured, for example: for each configured PUCCH format, length and pilot pattern, the pilot symbol position carrying SR information is fixed, so both the terminal and the base station side know on which pilot symbol the SR is carried, for example: a pilot frequency symbol position relation table for bearing SR information of different PUCCH lengths and different pilot frequency patterns can be defined; or predefined PUCCH/n pilot frequency symbol of each frequency hopping hop is used for carrying SR information; or on the last pilot symbol of the predefined PUCCH/each hop for carrying SR information.
Several specific application examples of the data transmission method according to the embodiment of the present invention are illustrated as follows:
application example 1:
assuming that the base station configures PUCCH format 1 to transmit HARQ-ACK feedback information, the length of PUCCH is 14 symbols, pilots occupy symbols numbered #0, #2, #4, #6, #8, #10 and #12 (numbered from # 0), and the pilot sequences corresponding to the symbols are:
Figure BDA0001532446640000091
Figure BDA0001532446640000092
the PUCCH does not have frequency hopping turned on and the last pilot symbol of the PUCCH is defined to carry SR information. As shown in fig. 2, when the terminal needs to transmit a positive SR, the SR information is represented as a modulation symbol of-1, the modulation symbol-1 is multiplied by a pilot sequence corresponding to the last pilot symbol of the PUCCH to obtain a pilot symbol carrying the SR information, and the pilot symbol is multiplied by an orthogonal code w6 corresponding to the pilot symbol position, and then is transmitted after IFFT (Inverse Fast Fourier Transform). As shown in fig. 3, when the terminal needs to transmit a negative SR, SR information is not transmitted and no additional processing is performed.
Application example 2:
suppose that the base station configures PUCCH format 1 to transmit HARQ-ACK feedback information, the length of the PUCCH is 14 symbols, and pilot frequency occupation numbers are #0, #2, #4, # #6. Symbols #8, #10, and #12 (numbered from # 0), the pilot sequences corresponding to the symbols are:
Figure BDA0001532446640000093
Figure BDA0001532446640000094
the PUCCH starts hopping and the last pilot symbol of each hopping hop part is defined to carry SR information when the PUCCH starts hopping. As shown in fig. 4a and 4b, the PUCCH includes a first frequency hopping part and a second frequency hopping part, when the terminal needs to transmit a positive SR, the SR information is represented as a modulation symbol of-1, and the modulation symbol is multiplied by a pilot sequence corresponding to the last pilot symbol of each frequency hopping part, as shown in fig. 4a, the modulation symbol-1 is multiplied by a pilot sequence corresponding to the last pilot symbol of the first frequency hopping part to obtain a pilot symbol carrying the SR information, and the pilot symbol is multiplied by an orthogonal code w3 corresponding to the pilot symbol position, and then is subjected to IFFT and then transmitted; as shown in fig. 4b, the modulation symbol-1 is multiplied by the pilot sequence corresponding to the last pilot symbol of the second frequency hopping part to obtain the pilot symbol carrying SR information, and the pilot symbol is multiplied by the orthogonal code s2 corresponding to the position of the pilot symbol, and then is subjected to IFFT and then transmitted. As shown in fig. 5a and 5b, when the terminal transmits a negative SR, the SR information is represented as a modulation symbol of 1, and the modulation symbol 1 is multiplied by a sequence corresponding to the last pilot symbol of each hop section, substantially without additional processing.
In a specific application, the base station may demodulate the SR information on the SR-bearing pilot symbol through a pilot estimation channel not bearing the SR information, and then jointly estimate a channel, or may perform blind detection on the SR information and perform joint detection of SR and HARQ-ACK.
According to the data transmission method provided by the embodiment of the invention, when the time domain transmission positions of the SR information and the HARQ-ACK information are overlapped, the SR information is borne on the pilot symbols of the PUCCH for transmission, the SR and the HARQ-ACK are transmitted simultaneously, and when the HARQ-ACK adopts PUCCH format 1 for transmission, whether the SR exists can be distinguished, so that the network performance is improved.
In some embodiments of the present invention, as shown in fig. 6, there is also provided a terminal 600, including:
a carrying module 601, configured to carry, when time domain transmission positions of scheduling request SR information and hybrid automatic repeat request acknowledgement HARQ-ACK information overlap, SR information on a pilot symbol of a physical uplink control channel PUCCH;
a transmission module 602, configured to transmit the PUCCH carrying the SR information.
According to the terminal 600 of the embodiment of the invention, when the time domain transmission positions of the SR information and the HARQ-ACK information are overlapped, the SR information is carried on the pilot symbols of the PUCCH for transmission, so that the SR and the HARQ-ACK are transmitted simultaneously, and when the HARQ-ACK adopts PUCCH format 1 for transmission, whether the SR exists can be distinguished, so that the network performance is improved.
Optionally, the bearing module 601 is specifically configured to:
and carrying the SR information on at least one pilot symbol in the pilot frequency of the PUCCH used for transmitting the HARQ-ACK.
Optionally, the bearing module 601 is specifically configured to:
when the PUCCH does not open frequency hopping, carrying the SR information on at least one pilot frequency symbol in the pilot frequency of the PUCCH used for transmitting the HARQ-ACK;
when the PUCCH is on frequency hopping, the SR information is carried on at least one pilot symbol in each frequency hopping part of the PUCCH for transmitting HARQ-ACK.
Optionally, the bearing module 601 includes:
a first modulation module, configured to modulate the SR information into a modulation symbol when SR is positive, and multiply the modulation symbol with a pilot sequence on the pilot symbol to obtain a pilot symbol carrying the SR information;
and the second adjusting module is used for modulating the SR information into a modulation symbol when the SR is negative, and multiplying the modulation symbol by the pilot sequence on the pilot symbol to obtain the pilot symbol carrying the SR information or not transmitting the SR information.
Optionally, when SR is positive, the modulation symbol is-1;
when the SR is negative, the modulation symbol is 1.
Optionally, the bearing module 601 is specifically configured to:
determining a pilot symbol for carrying SR information in a pilot frequency of a PUCCH according to predefined or preconfigured pilot symbol position information for carrying SR information;
carrying the SR information on the pilot symbols.
Optionally, the pilot symbol is a demodulation reference signal DMRS symbol.
According to the terminal 600 of the embodiment of the invention, when the time domain transmission positions of the SR information and the HARQ-ACK information are overlapped, the SR information is carried on the pilot symbols of the PUCCH for transmission, so that the SR and the HARQ-ACK are transmitted simultaneously, and when the HARQ-ACK adopts PUCCH format 1 for transmission, whether the SR exists can be distinguished, so that the network performance is improved.
It should be noted that, all the implementation manners in the foregoing data transmission method embodiment are applicable to the embodiment of the terminal, and the same technical effect can be achieved.
In some embodiments of the present invention, as illustrated with reference to fig. 7, there is also provided a terminal comprising a transceiver 710, a memory 720, a processor 700, a user interface 730, a bus interface and a computer program stored on said memory 720 and executable on said processor 700;
the processor 700 is configured to, when a time domain transmission position of scheduling request, SR, information overlaps with a time domain transmission position of hybrid automatic repeat request acknowledgement, HARQ-ACK, information, carry the SR information on a pilot symbol of a physical uplink control channel, PUCCH;
the transceiver 710 is configured to transmit the PUCCH carrying the SR information.
According to the terminal provided by the embodiment of the invention, when the time domain transmission positions of the SR information and the HARQ-ACK information are overlapped, the SR information is carried on the pilot symbols of the PUCCH for transmission, so that the SR and the HARQ-ACK are transmitted simultaneously, and when the HARQ-ACK adopts PUCCH format 1 for transmission, whether the SR exists can be distinguished, so that the network performance is improved.
Where in fig. 7, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 700 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 710 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The user interface 730 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.
Optionally, the processor 700 is configured to carry the SR information on at least one pilot symbol in a pilot of a PUCCH used for transmitting HARQ-ACK.
Optionally, the processor 700 is configured to carry the SR information on at least one pilot symbol in pilots of a PUCCH used for transmitting HARQ-ACK when the PUCCH is not on frequency hopping; when the PUCCH is on frequency hopping, the SR information is carried on at least one pilot symbol in each frequency hopping part of the PUCCH for transmitting HARQ-ACK.
Optionally, the processor 700 is configured to modulate the SR information into a modulation symbol when SR is positive, and multiply the modulation symbol with the pilot sequence on the pilot symbol to obtain the pilot symbol carrying the SR information;
and when the SR is negative, modulating the SR information into a modulation symbol, and multiplying the modulation symbol by the pilot sequence on the pilot symbol to obtain the pilot symbol carrying the SR information, or not transmitting the SR information.
Optionally, when SR is positive, the modulation symbol is-1;
when the SR is negative, the modulation symbol is 1.
Optionally, the processor 700 is configured to determine, according to predefined or preconfigured pilot symbol position information for carrying SR information, a pilot symbol for carrying the SR information in a pilot of the PUCCH; carrying the SR information on the pilot symbols.
Optionally, the pilot symbol is a demodulation reference signal DMRS symbol.
In some embodiments of the invention, there is also provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
when the time domain transmission position of Scheduling Request (SR) information and hybrid automatic repeat request (HARQ-ACK) information is overlapped, carrying the SR information on a pilot frequency symbol of a Physical Uplink Control Channel (PUCCH);
and transmitting the PUCCH carrying the SR information.
Optionally, the program further implements the following steps when executed by the processor:
and carrying the SR information on at least one pilot symbol in the pilot frequency of the PUCCH used for transmitting the HARQ-ACK.
Optionally, the program further implements the following steps when executed by the processor:
when the PUCCH does not open frequency hopping, carrying the SR information on at least one pilot frequency symbol in the pilot frequency of the PUCCH used for transmitting the HARQ-ACK;
when the PUCCH is on frequency hopping, the SR information is carried on at least one pilot symbol in each frequency hopping part of the PUCCH for transmitting HARQ-ACK.
Optionally, the program further implements the following steps when executed by the processor:
when the SR is positive, modulating the SR information into a modulation symbol, and multiplying the modulation symbol by a pilot frequency sequence on the pilot frequency symbol to obtain the pilot frequency symbol carrying the SR information;
and when the SR is negative, modulating the SR information into a modulation symbol, and multiplying the modulation symbol by the pilot sequence on the pilot symbol to obtain the pilot symbol carrying the SR information, or not transmitting the SR information.
Optionally, when SR is positive, the modulation symbol is-1;
when the SR is negative, the modulation symbol is 1.
Optionally, the program further implements the following steps when executed by the processor:
determining a pilot symbol for carrying SR information in a pilot frequency of a PUCCH according to predefined or preconfigured pilot symbol position information for carrying SR information;
carrying the SR information on the pilot symbols.
Optionally, the pilot symbol is a demodulation reference signal DMRS symbol.
In some embodiments of the present invention, referring to fig. 8, there is provided a data receiving method, including:
step 801, receiving a Physical Uplink Control Channel (PUCCH) sent by a terminal, wherein a predefined or preconfigured pilot symbol of the PUCCH carries Scheduling Request (SR) information; the terminal transmits the SR information carried on the pilot symbols of the PUCCH when the SR information is overlapped with the time domain transmission position of hybrid automatic repeat request acknowledgement (HARQ-ACK) information.
The pilot symbol may be, for example, a DMRS symbol, but is not limited thereto.
According to the data transmission method provided by the embodiment of the invention, when the time domain transmission positions of the SR information and the HARQ-ACK information are overlapped, the terminal loads the SR information on the pilot symbols of the PUCCH for transmission, the SR and the HARQ-ACK are transmitted simultaneously, the base station receives the PUCCH sent by the terminal, whether the SR exists can be distinguished through the pilot symbols, and when the HARQ-ACK adopts PUCCH format 1 for transmission, whether the SR exists can also be distinguished, so that the network performance is improved.
In a specific application, the base station may demodulate the SR information on the SR-bearing pilot symbol through a pilot estimation channel not bearing the SR information, and then jointly estimate a channel, or may perform blind detection on the SR information and perform joint detection of SR and HARQ-ACK.
In some embodiments of the present invention, referring to fig. 9, there is also provided a base station 900, including:
a receiving module 901, configured to receive a physical uplink control channel PUCCH sent by a terminal, where a predefined or preconfigured pilot symbol of the PUCCH carries scheduling request SR information; the terminal transmits the SR information carried on the pilot symbols of the PUCCH when the SR information is overlapped with the time domain transmission position of hybrid automatic repeat request acknowledgement (HARQ-ACK) information.
According to the base station 900 of the embodiment of the invention, when the time domain transmission positions of the SR information and the HARQ-ACK information are overlapped, the terminal loads the SR information on the pilot symbols of the PUCCH for transmission, the SR and the HARQ-ACK can be transmitted simultaneously, the base station receives the PUCCH sent by the terminal, whether the SR exists can be distinguished through the pilot symbols, and when the HARQ-ACK adopts PUCCH format 1 for transmission, whether the SR exists can also be distinguished, so that the network performance is improved.
It should be noted that, all the implementation manners in the above data receiving method embodiments are applicable to the embodiment of the base station, and the same technical effect can be achieved.
In some embodiments of the present invention, referring to fig. 10, there is also provided a base station comprising a transceiver 1010, a memory 1020, a processor 1000, a bus interface and a computer program stored on said memory 1020 and operable on said processor 1000;
the transceiver 1010 is configured to receive a physical uplink control channel PUCCH sent by a terminal, where a predefined or preconfigured pilot symbol of the PUCCH carries scheduling request SR information; the terminal transmits the SR information carried on the pilot symbols of the PUCCH when the SR information is overlapped with the time domain transmission position of hybrid automatic repeat request acknowledgement (HARQ-ACK) information.
According to the base station provided by the embodiment of the invention, when the time domain transmission positions of the SR information and the HARQ-ACK information are overlapped, the terminal bears the SR information on the pilot symbols of the PUCCH for transmission, the SR and the HARQ-ACK are transmitted simultaneously, the base station receives the PUCCH sent by the terminal, whether the SR exists can be distinguished through the pilot symbols, and when the HARQ-ACK adopts PUCCH format 1 for transmission, whether the SR exists can also be distinguished, so that the network performance is improved.
Where in fig. 10, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 1000 and memory represented by memory 1020. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1010 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1000 in performing operations.
In some embodiments of the invention, there is also provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
receiving a Physical Uplink Control Channel (PUCCH) sent by a terminal, wherein a predefined or preconfigured pilot symbol of the PUCCH bears Scheduling Request (SR) information; the terminal transmits the SR information carried on the pilot symbols of the PUCCH when the SR information is overlapped with the time domain transmission position of hybrid automatic repeat request acknowledgement (HARQ-ACK) information.
In various embodiments of the present invention, it should be understood that the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (12)

1. A method of data transmission, comprising:
when the time domain transmission position of Scheduling Request (SR) information and hybrid automatic repeat request (HARQ-ACK) information is overlapped, carrying the SR information on a pilot frequency symbol of a Physical Uplink Control Channel (PUCCH);
transmitting the PUCCH carrying the SR information;
wherein the step of carrying the SR information on the pilot symbols of the Physical Uplink Control Channel (PUCCH) comprises the steps of:
when the SR is positive, modulating the SR information into a modulation symbol, and multiplying the modulation symbol by a pilot frequency sequence on the pilot frequency symbol to obtain the pilot frequency symbol carrying the SR information;
when SR is negative, modulate the SR information into a modulation symbol, and multiply the modulation symbol with the pilot frequency sequence on the pilot frequency symbol to obtain the pilot frequency symbol carrying the SR information, or not transmit the SR information;
when SR is positive, the modulation symbol is-1; when the SR is negative, the modulation symbol is 1.
2. The method according to claim 1, wherein the step of carrying the SR information on pilot symbols of a Physical Uplink Control Channel (PUCCH) comprises:
and carrying the SR information on at least one pilot symbol in the pilot frequency of the PUCCH used for transmitting the HARQ-ACK.
3. The method according to claim 1, wherein the step of carrying the SR information on pilot symbols of a Physical Uplink Control Channel (PUCCH) comprises:
when the PUCCH does not open frequency hopping, carrying the SR information on at least one pilot frequency symbol in the pilot frequency of the PUCCH used for transmitting the HARQ-ACK;
when the PUCCH is on frequency hopping, the SR information is carried on at least one pilot symbol in each frequency hopping part of the PUCCH for transmitting HARQ-ACK.
4. The method according to claim 1, wherein the step of carrying the SR information on pilot symbols of a Physical Uplink Control Channel (PUCCH) comprises:
determining a pilot symbol for carrying SR information in a pilot frequency of a PUCCH according to predefined or preconfigured pilot symbol position information for carrying SR information;
carrying the SR information on the pilot symbols.
5. The method of claim 1, wherein the pilot symbols are demodulation reference signal (DMRS) symbols.
6. A terminal, comprising:
the bearing module is used for bearing the SR information on a pilot frequency symbol of a Physical Uplink Control Channel (PUCCH) when the time domain transmission positions of the Scheduling Request (SR) information and the hybrid automatic repeat request acknowledgement (HARQ-ACK) information are overlapped;
the transmission module is used for transmitting the PUCCH carrying the SR information;
wherein the carrier module comprises:
a first modulation module, configured to modulate the SR information into a modulation symbol when SR is positive, and multiply the modulation symbol with a pilot sequence on the pilot symbol to obtain a pilot symbol carrying the SR information;
a second adjusting module, configured to modulate the SR information into a modulation symbol when SR is negative, and multiply the modulation symbol with a pilot sequence on the pilot symbol to obtain a pilot symbol carrying the SR information, or not transmit the SR information;
when SR is positive, the modulation symbol is-1; when the SR is negative, the modulation symbol is 1.
7. A terminal comprising a transceiver, a memory, a processor and a computer program stored on the memory and executable on the processor; it is characterized in that the preparation method is characterized in that,
the processor is used for bearing the SR information on a pilot frequency symbol of a Physical Uplink Control Channel (PUCCH) when the time domain transmission positions of the Scheduling Request (SR) information and the hybrid automatic repeat request acknowledgement (HARQ-ACK) information are overlapped;
the transceiver is used for transmitting the PUCCH carrying the SR information;
the processor is configured to modulate the SR information into a modulation symbol when SR is positive, and multiply the modulation symbol with a pilot sequence on the pilot symbol to obtain a pilot symbol carrying the SR information;
when SR is negative, modulate the SR information into a modulation symbol, and multiply the modulation symbol with the pilot frequency sequence on the pilot frequency symbol to obtain the pilot frequency symbol carrying the SR information, or not transmit the SR information;
when SR is positive, the modulation symbol is-1; when the SR is negative, the modulation symbol is 1.
8. The terminal of claim 7, wherein the processor is configured to carry the SR information on at least one pilot symbol in a pilot of a PUCCH used for transmission of HARQ-ACK.
9. The terminal of claim 7, wherein the processor is configured to carry the SR information on at least one pilot symbol in pilots of a PUCCH used for transmission of HARQ-ACK when PUCCH is not on frequency hopping; when the PUCCH is on frequency hopping, the SR information is carried on at least one pilot symbol in each frequency hopping part of the PUCCH for transmitting HARQ-ACK.
10. The terminal of claim 7, wherein the processor is configured to determine pilot symbols for carrying the SR information in pilots of PUCCH according to predefined or preconfigured pilot symbol location information for carrying the SR information; carrying the SR information on the pilot symbols.
11. The terminal of claim 7, wherein the pilot symbols are demodulation reference signal (DMRS) symbols.
12. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, is characterized by the steps of the data transmission method as claimed in one of claims 1 to 5.
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