Uplink control information sending method, receiving method and related equipment
By combining QPSK and BPSK modulation on the PUCCH to distinguish high- and low-priority HARQ feedback information, and processing the SR information through cyclic shift, the problem of low-priority data loss in the 5G NR system is solved, and data transmission reliability and resource adjustment are achieved.
Patent Information
- Application Number
- CN202110856046.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-07-28
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2041-07-28
AI Technical Summary
In 5G NR systems, existing technologies cannot effectively distinguish and process uplink control information (UCI) of different priorities, resulting in low-priority data being mistakenly considered received when scheduling information is lost, leading to data loss.
By sending high-priority and low-priority HARQ feedback information simultaneously on PUCCH, and using a combination of QPSK and BPSK modulation to distinguish HARQ feedback information of different priorities, and processing SR information through cyclic shift on PUCCH format 1 to distinguish HARQ-ACK and SR.
The loss of low-priority data is effectively avoided. The base station can correctly identify whether the UE has lost scheduling information, thereby making appropriate resource adjustments to ensure the reliability of data transmission.
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Figure CN115696597B_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of communication technologies, and in particular to a method and apparatus for sending uplink control information, a method and apparatus for receiving uplink control information, user equipment, a base station, and a computer-readable storage medium. Background Art
[0002] Currently, in the fifth-generation mobile networks (5th Generation mobile networks, 5th Generation wireless systems, or 5th-Generation, 5G) New Radio (NR), the Physical Uplink Control Channel (PUCCH) is primarily used to carry uplink control information (UCI). UCI includes channel state information (CSI), hybrid automatic repeat request (HARQ) feedback, and scheduling request (SR) information. HARQ feedback, also known as HARQ-ACK feedback, includes positive acknowledgment (ACK) or negative acknowledgment (NACK) for the physical downlink shared channel (PDSCH).
[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention
[0004] The embodiments of the present disclosure provide a method and apparatus for sending uplink control information, a method and apparatus for receiving uplink control information, user equipment, a base station, and a computer-readable storage medium, which can retransmit low-priority data when it is lost.
[0005] Other features and advantages of the present disclosure will become apparent from the following detailed description, or may be learned in part by practice of the present disclosure.
[0006] According to one aspect of the present disclosure, a method for sending uplink control information is provided, which is applied to a user equipment (UE). The method includes:
[0007] Sending first HARQ feedback information and second HARQ feedback information to the base station simultaneously through the PUCCH;
[0008] The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
[0009] In one embodiment, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK, and only the first HARQ feedback information is sent and BPSK modulation is used, and a second set consisting of a modulation symbol when the first HARQ feedback information is NACK and the first HARQ feedback information is ACK are the same, including:
[0010] The bit of the second HARQ feedback information is recorded as b(0), and the bit of the first HARQ feedback information is recorded as b(1); when b(1)b(0) is 00, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is NACK; when b(1)b(0) is 10, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is ACK; or
[0011] The bit of the second HARQ feedback information is denoted as b(1), and the bit of the first HARQ feedback information is denoted as b(0). When b(1)b(0) is 00, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is NACK. When b(1)b(0) is 01, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is ACK.
[0012] In one embodiment, the bit of the second HARQ feedback information is recorded as b(0), and the bit of the first HARQ feedback information is recorded as b(1). When b(1)b(0) is 00, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is NACK. When b(1)b(0) is 10, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is ACK.
[0013] Use b(1)b(0) Modulate, or use b(1)b(0) Modulation is performed, wherein i=0 in the formula and j is an imaginary unit.
[0014] In one embodiment, the bit of the second HARQ feedback information is recorded as b(1), and the bit of the first HARQ feedback information is recorded as b(0). When b(1)b(0) is 00, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is NACK. When b(1)b(0) is 01, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is ACK.
[0015] Use b(1)b(0) Modulate, or use b(1)b(0) Modulation is performed, wherein i=0 in the formula and j is an imaginary unit.
[0016] In the uplink control information sending method disclosed in the present invention, if the UE loses the DCI scheduling the low-priority PDSCH, the base station will consider that the UE has fed back NACK for the low-priority PDSCH, so that the low-priority PDSCH can be retransmitted, avoiding the loss of low-priority data.
[0017] According to one aspect of the present disclosure, a method for sending uplink control information is provided, characterized in that it is applied to user equipment (UE), and the method includes:
[0018] Send HARQ feedback information and SR information to the base station simultaneously through PUCCH;
[0019] The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information;
[0020] When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
[0021] In one embodiment, the first cyclic shift is different from the second cyclic shift used when only the SR information is sent, including:
[0022] Parameter m for calculating the first cyclic shift cs =N, where N is an integer not equal to zero, used to calculate the parameter m of the second cyclic shift cs =0.
[0023] In one embodiment, when the SR information indicates that scheduling is not requested, the method further includes:
[0024] using a PUCCH resource configured for transmitting the HARQ feedback information; or
[0025] Using the PUCCH resource configured for transmitting the SR information, wherein the parameter m used to calculate the first cyclic shift cs =M, where M is an integer not equal to zero and not equal to N.
[0026] In one embodiment, the method further comprises:
[0027] N is equal to 6; or
[0028] N and M are two different values of 3, 6, and 9 respectively.
[0029] In the uplink control information sending method disclosed herein, when PUCCH format 1 resources configured for transmitting SR information are used to transmit HARQ-ACK and SR, the base station can distinguish whether HARQ-ACK feedback is carried on the PUCCH format 1 resources, thereby determining whether the UE has lost the DCI for scheduling the corresponding PDSCH, and adjusting the resources used by the PDCCH based on whether the PDCCH decoding is correct.
[0030] According to one aspect of the present disclosure, a method for receiving uplink control information is provided, which is applied to a base station. The method includes:
[0031] receiving, through the PUCCH, first HARQ feedback information and second HARQ feedback information simultaneously sent by a user equipment UE;
[0032] The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
[0033] According to one aspect of the present disclosure, a method for receiving uplink control information is provided, which is applied to a base station. The method includes:
[0034] Receiving HARQ feedback information and SR information simultaneously sent by user equipment UE through PUCCH;
[0035] The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information;
[0036] When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
[0037] According to one aspect of the present disclosure, there is provided an apparatus for sending uplink control information, applied to a user equipment (UE), the apparatus comprising:
[0038] A sending module, configured to simultaneously send the first HARQ feedback information and the second HARQ feedback information to the base station through the PUCCH;
[0039] The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
[0040] According to one aspect of the present disclosure, there is provided an apparatus for sending uplink control information, applied to a user equipment (UE), the apparatus comprising:
[0041] a sending module, configured to simultaneously send HARQ feedback information and SR information to the base station via the PUCCH;
[0042] The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information;
[0043] When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
[0044] According to one aspect of the present disclosure, there is provided an uplink control information receiving device, which is applied to a base station. The device includes:
[0045] A receiving module, configured to receive first HARQ feedback information and second HARQ feedback information simultaneously sent by user equipment UE through PUCCH;
[0046] The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
[0047] According to one aspect of the present disclosure, there is provided an uplink control information receiving device, which is applied to a base station. The device includes:
[0048] a receiving module configured to receive HARQ feedback information and SR information simultaneously sent by a user equipment UE through a PUCCH;
[0049] The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information;
[0050] When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
[0051] According to one aspect of the present disclosure, a user equipment is provided, including:
[0052] processor;
[0053] a memory for storing processor-executable instructions;
[0054] Wherein, the processor is configured to:
[0055] Sending first HARQ feedback information and second HARQ feedback information to the base station simultaneously through the PUCCH;
[0056] The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
[0057] According to one aspect of the present disclosure, a user equipment is provided, including:
[0058] processor;
[0059] a memory for storing processor-executable instructions;
[0060] Wherein, the processor is configured to:
[0061] Send HARQ feedback information and SR information to the base station simultaneously through PUCCH;
[0062] The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information;
[0063] When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
[0064] According to one aspect of the present disclosure, a base station is provided, including:
[0065] processor;
[0066] a memory for storing processor-executable instructions;
[0067] Wherein, the processor is configured to:
[0068] receiving, through the PUCCH, first HARQ feedback information and second HARQ feedback information simultaneously sent by a user equipment UE;
[0069] The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
[0070] According to one aspect of the present disclosure, a base station is provided, including:
[0071] processor;
[0072] a memory for storing processor-executable instructions;
[0073] Wherein, the processor is configured to:
[0074] Receiving HARQ feedback information and SR information simultaneously sent by user equipment UE through PUCCH;
[0075] The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information;
[0076] When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
[0077] According to one aspect of the present disclosure, a computer-readable storage medium is provided, on which computer instructions are stored. When the instructions are executed by a processor, the steps of the uplink control information sending method described in any one of the above embodiments are implemented.
[0078] According to one aspect of the present disclosure, a computer-readable storage medium is provided, on which computer instructions are stored. When the instructions are executed by a processor, the steps of the uplink control information receiving method described in any one of the above embodiments are implemented.
[0079] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0080] The following drawings describe certain illustrative embodiments of the present invention, wherein like reference numerals represent like elements. These described embodiments are intended to be exemplary embodiments of the present disclosure and are not intended to be limiting in any way.
[0081] Figure 1 The mapping basis and constellation diagram of bits to modulation symbols in the prior art are shown;
[0082] Figure 2 This is a flow chart of a method for sending uplink control information shown in an exemplary embodiment of the present application;
[0083] Figure 3 The mapping basis and constellation diagram of bits to modulation symbols according to one embodiment of the present disclosure are shown;
[0084] Figure 4 The mapping basis and constellation diagram of bits to modulation symbols according to one embodiment of the present disclosure are shown;
[0085] Figure 5 This is a flow chart of a method for sending uplink control information shown in an exemplary embodiment of the present application;
[0086] Figure 6 This is a flow chart of a method for receiving uplink control information shown in an exemplary embodiment of the present application;
[0087] Figure 7 This is a flow chart of a method for receiving uplink control information shown in an exemplary embodiment of the present application;
[0088] Figure 8 This is a signaling flow chart of a method for sending and receiving uplink control information shown in an exemplary embodiment of the present application;
[0089] Figure 9 This is a signaling flow chart of a method for sending and receiving uplink control information shown in an exemplary embodiment of the present application;
[0090] Figure 10 is a block diagram of a device for sending uplink control information according to an exemplary embodiment;
[0091] Figure 11 is a block diagram of a device for sending uplink control information according to an exemplary embodiment;
[0092] Figure 12 is a block diagram of an uplink control information receiving device according to an exemplary embodiment;
[0093] Figure 13 is a block diagram of an uplink control information receiving device according to an exemplary embodiment;
[0094] Figure 14 This is a block diagram of a device for sending uplink control information according to an exemplary embodiment;
[0095] Figure 15 The figure is a block diagram showing a device for receiving uplink control information according to an exemplary embodiment. DETAILED DESCRIPTION
[0096] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, like numbers in different figures represent like or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention, as detailed in the appended claims.
[0097] In the existing technology, NR supports multiple PUCCH formats, among which PUCCH format 1 carries up to 2 bits of HARQ-ACK feedback information and can also carry SR information.
[0098] PUCCH format 1 occupies 4 to 14 Orthogonal Frequency Division Multiplexing (OFDM) symbols in the time domain and 12 subcarriers of a resource block in the frequency domain. When the HARQ-ACK feedback information carried by PUCCH format 1 is 1 bit b(0), b(0) is modulated using binary phase shift keying (BPSK) to generate the modulated symbol d(0); when the HARQ-ACK feedback information carried by PUCCH format 1 is 2 bits b(1)b(0), b(1)b(0) is modulated using quadrature phase shift keying (QPSK) to generate the modulated symbol d(0). If the HARQ-ACK is ACK, the corresponding bit is set to 1; if the HARQ-ACK is NACK, the corresponding bit is set to 0. The modulated symbol d(0) is compared with the sequence Multiplying together gives a sequence of length 12: is 12. The sequence is through the base sequence The result of cyclic shift of α is base sequence is a predefined value. The base sequence is divided into groups, u∈{0, 1, ..., 29} is the group number, and v is the sequence number in the group.
[0099] The cyclic shift α of the base sequence is calculated as: Where m0 is the initial cyclic shift, which can be configured through Radio Resource Control (RRC) signaling. cs Fixed to 0. If PUCCH uses interlaced mapping, is the resource block number in the interleaver; otherwise, m int =0. is the slot number within the radio frame. l is the OFDM symbol index relative to the start symbol of the PUCCH transmission, where l = 0 corresponds to the first OFDM symbol of the PUCCH transmission. l′ is the OFDM symbol index within the slot corresponding to the first OFDM symbol of the PUCCH transmission. c(i) is a predefined pseudo-random sequence, is the number of symbols contained in a time slot.
[0100] sequence Using a pre-defined orthogonal sequence w i (m) is spread spectrum, and the obtained sequence z() is mapped to the physical resources. is a predefined spreading factor.
[0101]
[0102]
[0103]
[0104]
[0105] The base station configures the PUCCH resources for transmitting SR and HARQ-ACK through RRC signaling. When the user equipment (UE) has uplink data to send, it sends SR information on the PUCCH resources used for SR to request scheduling, which is called Positive SR. When the UE does not need to request scheduling, it does not send SR information, which is called Negative SR.
[0106] When only Positive SR is transmitted using PUCCH format 1, bit b(0) = 0. When the HARQ-ACK and SR transmission times overlap and both use PUCCH format 1: When the UE wants to use PUCCH format 1 to send Positive SR and up to 2 bits of HARQ-ACK in the same time slot, the UE uses the PUCCH resources configured for SR transmission to send HARQ-ACK; when the UE wants to use PUCCH format 1 to send Negative SR and up to 2 bits of HARQ-ACK in the same time slot, the UE uses the PUCCH resources configured for HARQ-ACK transmission to send HARQ-ACK.
[0107] Problems with existing technologies:
[0108] NR supports three major application scenarios: Enhanced Mobile Broadband (eMBB), massive Machine Type Communications (mMTC), and Ultra Reliable Low Latency Communication (URLLC). Services in different application scenarios have different requirements for data transmission. For example, URLLC services usually require extremely low transmission latency and extremely high transmission reliability, so different transmission priorities can be defined. NR Release 16 defines two types of UCI priorities, one for eMBB services and the other for URLLC services. When the transmission times of UCIs of different priorities overlap, the high-priority UCI is transmitted first, and the low-priority UCI is not transmitted. In order to reduce the impact of the non-transmission of low-priority UCI on the transmission of low-priority services, NR Release 17 considers the simultaneous transmission (multiplexing) of UCIs with different priorities. Among them, how to use PUCCH format 1 to transmit multiplexed UCIs of different priorities is one of the issues to be considered.
[0109] Figure 1 The mapping basis and constellation diagram of bits to modulation symbols in the prior art are shown.
[0110] When the UCI to be multiplexed on PUCCH format 1 includes 1 bit of high priority HARQ-ACK and 1 bit of low priority HARQ-ACK, if the 2 bits are modulated by QPSK to obtain d(0) in the existing way of transmitting 2 bits of HARQ-ACK with the same priority, if the bit of high priority HARQ-ACK is taken as b(1) and the bit of low priority HARQ-ACK is taken as b(0), the mapping of bits to modulation symbols is based on The constellation map is as attached Figure 1 Left figure. Since the transmission reliability requirements of low-priority services are relatively low, if the UE loses the downlink control information (DCI) that schedules the low-priority PDSCH, the UE will not feedback the 1-bit low-priority HARQ-ACK. The UE will BPSK modulate the 1-bit high-priority HARQ-ACK to obtain d(0). The mapping of bits to modulation symbols is based on The constellation map is as attached Figure 1 Right: If the 1-bit high-priority HARQ-ACK is ACK, the base station will interpret the received bit as 11 and mistakenly believe that the UE has correctly received the low-priority PDSCH and fed back an ACK. This will cause the unsent low-priority HARQ-ACK feedback to be incorrectly detected as an ACK (Discontinuous Transmission, DTX)-to-ACK), resulting in the loss of low-priority data.
[0111] When the UCI to be transmitted includes a low-priority HARQ-ACK and a high-priority SR, if PUCCH format 1 is used for transmission according to the existing transmission method of HARQ-ACK and SR of the same priority, if PositiveSR needs to be transmitted, HARQ-ACK is sent using the PUCCH format 1 resource configured for transmitting SR. That is, the 1-bit HARQ-ACK b(0) is BPSK modulated, or the 2-bit HARQ-ACK b(1)b(0) is QPSK modulated to obtain the modulation symbol d(0). Case 1: If the 1-bit or 2-bit HARQ-ACK feedback is NACK, the bit position b(0) = 0 or b(1)b(0) = 00. Case 2: If the UE loses the DCI that schedules the low-priority PDSCH, the UE will not feedback HARQ-ACK, but will use the PUCCH format 1 resource configured for transmitting SR to send only SR, b(0) = 0. Since the constellation position of the modulation symbols is the same in these two cases, the base station cannot distinguish whether all HARQ-ACK feedbacks are NACKs or whether the UE did not provide HARQ-ACK feedback due to missing the DCI that scheduled the low-priority PDSCH, resulting in the detection of the unsent low-priority HARQ-ACK feedback as a NACK (DTX-to-NACK) error. However, the base station's distinction between DTX and NACK helps determine whether the UE can correctly decode the downlink control channel (Physical Downlink Control Channel, PDCCH), thereby adjusting the resources used by the PDCCH based on whether the PDCCH is decoded correctly, such as increasing or decreasing the PDCCH aggregation level.
[0112] Figure 2 This is a flow chart of a method for sending uplink control information shown in an exemplary embodiment of the present application. This embodiment is described from the UE side. Figure 2 As shown, the uplink control information sending method includes:
[0113] In step S210, the first HARQ feedback information and the second HARQ feedback information are simultaneously sent to the base station via the PUCCH;
[0114] The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
[0115] In one embodiment, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK, and only the first HARQ feedback information is sent and BPSK modulation is used, and a second set consisting of a modulation symbol when the first HARQ feedback information is NACK and the first HARQ feedback information is ACK are the same, including:
[0116] The bit of the second HARQ feedback information is recorded as b(0), and the bit of the first HARQ feedback information is recorded as b(1); when b(1)b(0) is 00, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is NACK; when b(1)b(0) is 10, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is ACK; or
[0117] The bit of the second HARQ feedback information is denoted as b(1), and the bit of the first HARQ feedback information is denoted as b(0). When b(1)b(0) is 00, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is NACK. When b(1)b(0) is 01, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is ACK.
[0118] In one embodiment, the bit of the second HARQ feedback information is recorded as b(0), and the bit of the first HARQ feedback information is recorded as b(1). When b(1)b(0) is 00, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is NACK. When b(1)b(0) is 10, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is ACK.
[0119] Use b(1)b(0) Modulate, or use b(1)b(0) Modulation is performed, wherein i=0 in the formula and j is an imaginary unit.
[0120] In one embodiment, the bit of the second HARQ feedback information is recorded as b(1), and the bit of the first HARQ feedback information is recorded as b(0). When b(1)b(0) is 00, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is NACK. When b(1)b(0) is 01, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is ACK.
[0121] Use b(1)b(0) Modulate, or use b(1)b(0) Modulation is performed, wherein i=0 in the formula and j is an imaginary unit.
[0122] In the solution of the present disclosure, when the UCI multiplexed and transmitted on PUCCH format 1 includes 1 bit of high priority HARQ-ACK and 1 bit of low priority HARQ-ACK, the mapping of bits to modulation symbols during QPSK modulation satisfies: the modulation symbol (constellation point) when the 1-bit low priority HARQ-ACK is NACK is the same as the modulation symbol (constellation point) when only 1 bit of HARQ-ACK is transmitted. Specific implementation methods include the following:
[0123] Figure 3 The mapping basis and constellation diagram of bits to modulation symbols according to one embodiment of the present disclosure are shown.
[0124] Method 1: The high-priority HARQ-ACK bit is set as b(1), and the low-priority HARQ-ACK bit is set as b(0). A QPSK modulation symbol with b(1)b(0) equal to 00 is the same as a BPSK modulation symbol that transmits only a 1-bit NACK. A QPSK modulation symbol with b(1)b(0) equal to 10 is the same as a BPSK modulation symbol that transmits only a 1-bit ACK.
[0125] The mapping of bits to modulation symbols is based on The constellation diagram for QPSK modulation of 2-bit HARQ-ACK is shown in the attached figure. Figure 3 Left picture.
[0126] Alternatively, the mapping of bits to modulation symbols is based on The constellation diagram for QPSK modulation of 2-bit HARQ-ACK is shown in the attached figure. Figure 3 Right picture.
[0127] Figure 4 The mapping basis and constellation diagram of bits to modulation symbols according to one embodiment of the present disclosure are shown.
[0128] Method 2: The low-priority HARQ-ACK bit is set as b(1), and the high-priority HARQ-ACK bit is set as b(0). A QPSK modulation symbol with b(1)b(0) equal to 00 is the same as a BPSK modulation symbol that transmits only a 1-bit NACK. A QPSK modulation symbol with b(1)b(0) equal to 01 is the same as a BPSK modulation symbol that transmits only a 1-bit ACK.
[0129] The mapping of bits to modulation symbols is based on The constellation diagram for QPSK modulation of 2-bit HARQ-ACK is shown in the attached figure. Figure 4 Left picture.
[0130] Alternatively, the mapping of bits to modulation symbols is based on The constellation diagram for QPSK modulation of 2-bit HARQ-ACK is shown in the attached figure. Figure 4 Right picture.
[0131] In the above manner, if the UE loses the DCI that schedules the low-priority PDSCH and the 1-bit high-priority HARQ-ACK is ACK, the base station will consider that the UE has fed back NACK for the low-priority PDSCH, so that the low-priority PDSCH can be retransmitted, avoiding the loss of low-priority data.
[0132] Figure 5 This is a flow chart of a method for sending uplink control information shown in an exemplary embodiment of the present application. This embodiment is described from the UE side. Figure 5 As shown, the uplink control information sending method includes:
[0133] Send HARQ feedback information and SR information to the base station simultaneously through PUCCH;
[0134] The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information;
[0135] When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
[0136] In one embodiment, the first cyclic shift is different from the second cyclic shift used when only the SR information is sent, including:
[0137] Parameter m for calculating the first cyclic shift cs =N, where N is an integer not equal to zero, used to calculate the parameter m of the second cyclic shift cs =0.
[0138] In one embodiment, when the SR information indicates that scheduling is not requested, the method further includes:
[0139] using a PUCCH resource configured for transmitting the HARQ feedback information; or
[0140] Using the PUCCH resource configured for transmitting the SR information, wherein the parameter m used to calculate the first cyclic shift cs =M, where M is an integer not equal to zero and not equal to N.
[0141] In one embodiment, the method further comprises:
[0142] N is equal to 6; or
[0143] N and M are two different values of 3, 6, and 9 respectively.
[0144] When the UCI to be transmitted includes HARQ-ACK and a high-priority SR, and PUCCH format 1 is used for transmission, the following methods can be used in the solution of the present invention. The HARQ-ACK includes a low-priority HARQ-ACK. This can be a low-priority HARQ-ACK of up to 2 bits, or a 1-bit low-priority HARQ-ACK and a 1-bit high-priority HARQ-ACK.
[0145] Method 1: When a Positive SR needs to be transmitted, i.e., scheduling is requested, the PUCCH format 1 resource configured for SR transmission is used to multiplex the SR and a maximum of 2 bits of HARQ-ACK. The 1-bit HARQ-ACK b(0) is BPSK modulated, or the 2-bit HARQ-ACK b(1)b(0) is QPSK modulated to obtain the modulation symbol d(0). The mapping of QPSK modulation bits to modulation symbols can be achieved using the attached Figure 1 The prior art method shown in the figure can also be used in the present invention. Figure 3 or Figure 4 The method used to calculate the first cyclic shift α is m cs Not 0. For example, m cs = 6. When Negative SR needs to be transmitted, that is, when no scheduling is requested, a maximum of 2 bits of HARQ-ACK is transmitted using the PUCCH resources configured for HARQ-ACK transmission.
[0146] Method 2: BPSK modulate the 1-bit HARQ-ACK b(0), or QPSK modulate the 2-bit HARQ-ACK b(1)b(0) to obtain the modulation symbol d(0). The mapping of QPSK modulation bits to modulation symbols can be done using the following method: Figure 1 The prior art method shown in the figure can also be used in the present invention. Figure 3 or Figure 4 The PUCCH resource used is the PUCCH resource configured for SR transmission. The m used to calculate the first cyclic shift α cs Not 0. When Positive SR or Negative SR needs to be transmitted, different m cs In one embodiment, when a Positive SR or a Negative SR needs to be transmitted, the m cs are two different values among 3, 6, and 9. For example, Positive SR uses m cs =3, Negative SR uses m cs =6.
[0147] When only SR information is transmitted using SR PUCCH format 1 resources, m is used to calculate the second cyclic shift α. cs In the above method, m is used cs The method for calculating the first cyclic shift or the second cyclic shift is, for example, the same as that in the prior art.
[0148] In the above manner, when the PUCCH format 1 resource of the SR is used to multiplex the transmission of HARQ-ACK and SR, the cyclic shift used is different from the cyclic shift used when only the SR is transmitted. Thus, the base station can distinguish whether the PUCCH format 1 resource of the SR carries HARQ-ACK feedback, and determine whether the UE has lost the DCI of the corresponding scheduled PDSCH, thereby adjusting the resources used by the PDCCH according to whether the PDCCH decoding is correct.
[0149] Compared with the prior art, the present disclosure has the following advantages and effects:
[0150] When the UCI multiplexed and transmitted on PUCCH format 1 includes low-priority HARQ-ACK and high-priority UCI, the problem of the base station detecting DTX-to-ACK and DTX-to-NACK of PUCCH when the UE loses the DCI of the PDSCH corresponding to the HARQ-ACK is avoided. Specifically:
[0151] When the UCI multiplexed and transmitted on PUCCH format 1 includes 1-bit high-priority HARQ-ACK and 1-bit low-priority HARQ-ACK, when QPSK modulation is performed, the modulation symbol (constellation point) of the 1-bit low-priority HARQ-ACK as NACK is the same as the modulation symbol (constellation point) when only 1-bit HARQ-ACK is transmitted. Therefore, if the UE loses the DCI scheduling the low-priority PDSCH, the base station will believe that the UE has fed back NACK for the low-priority PDSCH, so that the low-priority PDSCH can be retransmitted, avoiding the loss of low-priority data.
[0152] When the UCI multiplexed and transmitted on PUCCH format 1 includes low-priority HARQ-ACK and high-priority SR, m used to calculate the cyclic shift α is cs This is different from the existing value of 0. This allows the base station to distinguish whether the PUCCH format 1 resource configured for SR transmission carries HARQ-ACK feedback, determine whether the UE has lost the DCI for the corresponding scheduled PDSCH, and adjust the resources used by the PDCCH based on whether the PDCCH is decoded correctly.
[0153] Figure 6 This is a flow chart of a method for receiving uplink control information shown in an exemplary embodiment of the present application. This embodiment is described from the base station side. Figure 6 As shown, the method includes:
[0154] receiving, through the PUCCH, first HARQ feedback information and second HARQ feedback information simultaneously sent by a user equipment UE;
[0155] The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
[0156] For other limitations on the first HARQ feedback information and the second HARQ feedback information, please refer to the description of the user equipment UE, which will not be repeated here.
[0157] Figure 7 This is a flow chart of a method for receiving uplink control information shown in an exemplary embodiment of the present application. This embodiment is described from the base station side. Figure 7 As shown, the method includes:
[0158] Receiving HARQ feedback information and SR information simultaneously sent by user equipment UE through PUCCH;
[0159] The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information;
[0160] When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
[0161] For other limitations on HARQ feedback information and SR information, please refer to the description of the user equipment UE and will not be repeated here.
[0162] Figure 8 This is a signaling flow chart of a method for sending and receiving uplink control information shown in an exemplary embodiment of the present application. This embodiment is described from the perspective of interaction between a base station and a UE. Figure 8As shown, the method includes:
[0163] In step S801, the user equipment UE simultaneously sends first HARQ feedback information and second HARQ feedback information to the base station through the PUCCH;
[0164] In step S802, the base station receives first HARQ feedback information and second HARQ feedback information simultaneously sent by user equipment UE through PUCCH;
[0165] The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
[0166] For details not described in detail, please refer to the description of the uplink control information sending method applied to the user equipment UE, which will not be repeated here.
[0167] Figure 9 This is a signaling flow chart of a method for sending and receiving uplink control information shown in an exemplary embodiment of the present application. This embodiment is described from the perspective of interaction between a base station and a UE. Figure 9 As shown, the method includes:
[0168] In step S901, the user equipment UE simultaneously sends HARQ feedback information and SR information to the base station through the PUCCH;
[0169] In step S902, the base station receives HARQ feedback information and SR information simultaneously sent by the user equipment UE through the PUCCH;
[0170] The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information;
[0171] When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
[0172] For details not described in detail, please refer to the description of the uplink control information sending method applied to the user equipment UE, which will not be repeated here.
[0173] Figure 10 is a block diagram of an uplink control information sending device according to an exemplary embodiment, the device is located in the UE, such as Figure 10 As shown, the device includes: a sending module 101.
[0174] The sending module 101 is configured to simultaneously send the first HARQ feedback information and the second HARQ feedback information to the base station through the PUCCH;
[0175] The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
[0176] For details not described in detail, please refer to the description of the uplink control information sending method applied to the user equipment UE, which will not be repeated here.
[0177] Figure 11 is a block diagram of an uplink control information sending device according to an exemplary embodiment, the device is located in the UE, such as Figure 11 As shown, the device includes: a sending module 111.
[0178] The sending module 111 is configured to simultaneously send HARQ feedback information and SR information to the base station through the PUCCH;
[0179] The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information;
[0180] When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
[0181] For details not described in detail, please refer to the description of the uplink control information sending method applied to the user equipment UE, which will not be repeated here.
[0182] Figure 12 is a block diagram of an uplink control information receiving device according to an exemplary embodiment. The device may be located in a base station, such as Figure 12 As shown, the device includes:
[0183] The receiving module 121 is configured to receive first HARQ feedback information and second HARQ feedback information simultaneously sent by a user equipment UE through a PUCCH;
[0184] The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
[0185] For details not described in detail, please refer to the description of the uplink control information sending method applied to the user equipment UE, which will not be repeated here.
[0186] Figure 13 is a block diagram of an uplink control information receiving device according to an exemplary embodiment. The device may be located in a base station, such as Figure 13 As shown, the device includes:
[0187] The receiving module 131 is configured as a receiving module, configured to receive HARQ feedback information and SR information simultaneously sent by the user equipment UE through the PUCCH;
[0188] The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information;
[0189] When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
[0190] For details not described in detail, please refer to the description of the uplink control information sending method applied to the user equipment UE, which will not be repeated here.
[0191] Figure 14 This is a block diagram illustrating an apparatus for transmitting uplink control information according to an exemplary embodiment. For example, apparatus 1400 may be a user device such as a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, or a personal digital assistant.
[0192] Reference Figure 14 , device 1400 may include one or more of the following components: a processing component 1402 , a memory 1404 , a power component 1406 , a multimedia component 1408 , an audio component 1410 , an input / output (I / O) interface 1412 , a sensor component 1414 , and a communication component 1416 .
[0193] Processing component 1402 generally controls the overall operation of device 1400, such as operations associated with display, phone calls, data communications, camera operation, and recording operations. Processing component 1402 may include one or more processors 1420 to execute instructions to perform all or part of the steps of the above-described method. In addition, processing component 1402 may include one or more modules to facilitate interaction between processing component 1402 and other components. For example, processing component 1402 may include a multimedia module to facilitate interaction between multimedia component 1408 and processing component 1402.
[0194] In one embodiment, one of the processors 1420 in the processing component 1402 may be configured to:
[0195] Sending first HARQ feedback information and second HARQ feedback information to the base station simultaneously through the PUCCH;
[0196] The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
[0197] In one embodiment, one of the processors 1420 in the processing component 1402 may be configured to:
[0198] Send HARQ feedback information and SR information to the base station simultaneously through PUCCH;
[0199] The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information;
[0200] When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
[0201] The memory 1404 is configured to store various types of data to support the operations of the device 1400. Examples of such data include instructions for any application or method operating on the device 1400, contact data, phone book data, messages, pictures, videos, etc. The memory 1404 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, 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 disk, or optical disk.
[0202] The power supply component 1406 provides power to the various components of the device 1400. The power supply component 1406 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the device 1400.
[0203] The multimedia component 1408 includes a screen that provides an output interface between the device 1400 and the user. 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 input signals from the user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can not only sense the boundaries 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 1408 includes a front camera and / or a rear camera. When the device 1400 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
[0204] The audio component 1410 is configured to output and / or input audio signals. For example, the audio component 1410 includes a microphone (MIC) that is configured to receive external audio signals when the device 1400 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 1404 or transmitted via the communication component 1416. In some embodiments, the audio component 1410 also includes a speaker for outputting audio signals.
[0205] I / O interface 1412 provides an interface between processing component 1402 and peripheral interface modules, such as a keyboard, click wheel, buttons, etc. These buttons may include but are not limited to: a home button, volume buttons, a start button, and a lock button.
[0206] The sensor assembly 1414 includes one or more sensors for providing various aspects of the status assessment of the device 1400. For example, the sensor assembly 1414 can detect the open / closed state of the device 1400, the relative positioning of components, such as the display and keypad of the device 1400. The sensor assembly 1414 can also detect changes in the position of the device 1400 or a component of the device 1400, the presence or absence of user contact with the device 1400, the orientation or acceleration / deceleration of the device 1400, and changes in the temperature of the device 1400. The sensor assembly 1414 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 1414 can also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1414 can also include an accelerometer, a gyroscope, a magnetic sensor, a pressure sensor, or a temperature sensor.
[0207] The communication component 1416 is configured to facilitate wired or wireless communication between the device 1400 and other devices. The device 1400 can access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G, 5G, or a combination thereof. In an exemplary embodiment, the communication component 1416 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1416 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
[0208] In an exemplary embodiment, the apparatus 1400 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, microcontrollers, microprocessors, or other electronic components to perform the above-described methods.
[0209] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1404 including instructions, which can be executed by the processor 1420 of the apparatus 1400 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.
[0210] Figure 15 FIG1 is a block diagram of an apparatus for receiving uplink control information according to an exemplary embodiment. The apparatus 1500 may be provided as a base station. Figure 15 The device 1500 includes a processing component 1522, a wireless transmission / reception component 1524, an antenna component 1526, and a signal processing part specific to the wireless interface. The processing component 1522 may further include one or more processors.
[0211] In one embodiment, one of the processors in the processing component 1522 may be configured to:
[0212] receiving, through the PUCCH, first HARQ feedback information and second HARQ feedback information simultaneously sent by a user equipment UE;
[0213] The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
[0214] In one embodiment, one of the processors in the processing component 1522 may be configured to:
[0215] Receiving HARQ feedback information and SR information simultaneously sent by user equipment UE through PUCCH;
[0216] The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information;
[0217] When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
[0218] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided. The instructions can be executed by the processing component 1522 of the apparatus 1500 to implement the above-mentioned information receiving (transmitting) method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.
[0219] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to the partial description of the method embodiments. The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. A person of ordinary skill in the art can understand and implement it without expending creative work.
[0220] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. The terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.
[0221] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.
[0222] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A method for sending uplink control information, characterized in that: Applied to user equipment UE, the method includes: Sending first HARQ feedback information and second HARQ feedback information to the base station simultaneously through the PUCCH; The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
2. The method according to claim 1, characterized in that The first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK, the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is formed; and only the first HARQ feedback information is sent and BPSK modulation is used, and a second set consisting of a modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is formed is the same as: The bit of the second HARQ feedback information is recorded as b(0), and the bit of the first HARQ feedback information is recorded as b(1); when b(1)b(0) is 00, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is NACK; when b(1)b(0) is 10, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is ACK; or The bit of the second HARQ feedback information is denoted as b(1), and the bit of the first HARQ feedback information is denoted as b(0). When b(1)b(0) is 00, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is NACK. When b(1)b(0) is 01, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is ACK.
3. The method according to claim 2, characterized in that The bit of the second HARQ feedback information is recorded as b(0), and the bit of the first HARQ feedback information is recorded as b(1). When b(1)b(0) is 00, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is NACK. When b(1)b(0) is 10, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is ACK. Use b(1)b(0) Modulate, or use b(1)b(0) Modulation is performed, wherein i=0 in the formula and j is an imaginary unit.
4. The method according to claim 2, characterized in that The bit of the second HARQ feedback information is recorded as b(1), and the bit of the first HARQ feedback information is recorded as b(0). When b(1)b(0) is 00, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is NACK. When b(1)b(0) is 01, the modulation symbol modulated by QPSK is the same as the modulation symbol modulated by BPSK when only the first HARQ feedback information is sent and the first HARQ feedback information is ACK. Use b(1)b(0) Modulate, or use b(1)b(0) Modulation is performed, wherein i=0 in the formula and j is an imaginary unit.
5. A method for sending uplink control information, characterized in that: Applied to user equipment UE, the method includes: Send HARQ feedback information and SR information to the base station simultaneously through PUCCH; The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information; When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
6. The method according to claim 5, characterized in that The first cyclic shift is different from the second cyclic shift used when only the SR information is sent, including: Parameter m for calculating the first cyclic shift cs =N, where N is an integer not equal to zero, used to calculate the parameter m of the second cyclic shift cs =0.
7. The method according to claim 6, characterized in that When the SR information indicates that scheduling is not requested, the method further includes: using a PUCCH resource configured for transmitting the HARQ feedback information; or Using the PUCCH resource configured for transmitting the SR information, wherein the parameter m used to calculate the first cyclic shift cs =M, where M is an integer not equal to zero and not equal to N.
8. The method according to claim 7, characterized in that The method further comprises: N is equal to 6; or N and M are two different values of 3, 6, and 9 respectively.
9. A method for receiving uplink control information, characterized in that: Applied to a base station, the method includes: receiving, through the PUCCH, first HARQ feedback information and second HARQ feedback information simultaneously sent by a user equipment UE; The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
10. A method for receiving uplink control information, characterized in that: Applied to a base station, the method includes: Receiving HARQ feedback information and SR information simultaneously sent by user equipment UE through PUCCH; The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information; When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
11. An uplink control information sending device, characterized in that: Applied to user equipment UE, the apparatus includes: A sending module, configured to simultaneously send the first HARQ feedback information and the second HARQ feedback information to the base station through the PUCCH; The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
12. An uplink control information sending device, characterized in that: Applied to user equipment UE, the apparatus includes: a sending module, configured to simultaneously send HARQ feedback information and SR information to the base station via the PUCCH; The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information; When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
13. An uplink control information receiving device, characterized in that: Applied to a base station, the device includes: A receiving module, configured to receive first HARQ feedback information and second HARQ feedback information simultaneously sent by user equipment UE through PUCCH; The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
14. An uplink control information receiving device, characterized in that: Applied to a base station, the device includes: a receiving module configured to receive HARQ feedback information and SR information simultaneously sent by a user equipment UE through a PUCCH; The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information; When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
15. A user equipment, characterized in that: include: processor; a memory for storing processor-executable instructions; Wherein, the processor is configured to: Sending first HARQ feedback information and second HARQ feedback information to the base station simultaneously through the PUCCH; The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
16. A user equipment, characterized in that include: processor; a memory for storing processor-executable instructions; Wherein, the processor is configured to: Send HARQ feedback information and SR information to the base station simultaneously through PUCCH; The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information; When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
17. A base station, characterized in that: include: processor; a memory for storing processor-executable instructions; Wherein, the processor is configured to: receiving, through the PUCCH, first HARQ feedback information and second HARQ feedback information simultaneously sent by a user equipment UE; The first HARQ feedback information is 1-bit high-priority HARQ feedback information, the second HARQ feedback information is 1-bit low-priority HARQ feedback information, the first HARQ feedback information and the second HARQ feedback information are modulated using QPSK, and a first set consisting of a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is NACK, and a modulation symbol when the second HARQ feedback information is NACK and the first HARQ feedback information is ACK is the same as a second set consisting of a modulation symbol when only the first HARQ feedback information is sent and BPSK modulation is used, and the modulation symbol when the first HARQ feedback information is NACK and the modulation symbol when the first HARQ feedback information is ACK is ACK.
18. A base station, characterized in that: include: processor; a memory for storing processor-executable instructions; Wherein, the processor is configured to: Receiving HARQ feedback information and SR information simultaneously sent by user equipment UE through PUCCH; The HARQ feedback information includes low-priority HARQ feedback information, and the SR information is high-priority information; When the SR information is a scheduling request, the PUCCH resource configured for transmitting the SR information is used, and the sequence multiplied by the modulation symbol of the HARQ feedback information is a sequence after a first cyclic shift, and the first cyclic shift is different from the second cyclic shift used when only the SR information is sent.
19. A computer-readable storage medium having computer instructions stored thereon, characterized in that: When the instruction is executed by the processor, the steps of the uplink control information sending method according to any one of claims 1 to 8 are implemented.
20. A computer-readable storage medium having computer instructions stored thereon, characterized in that: When the instruction is executed by the processor, the steps of the uplink control information receiving method according to claim 9 or 10 are implemented.
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